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13C同位素示踪法研究木素与纤维素连接键的形成
范建云1 谢益民2 杨海涛1 李松礼1 王 鹏1
（1.华南理工大学制浆造纸工程国家重点实验室，广东广州，510640；2.山东轻工业学院制浆造纸工程省级重点学科，山东济南，250100）
摘 要：经润胀处理后的微晶纤维素，在β-葡萄糖甙酶、葡萄糖氧化酶及过氧化物酶存在 下，与松柏醇葡萄糖甙发生聚和反应得到木素-纤维素复合体（DHPCC）。用高分辨率CP/MAS 13C-NMR分析常规DHPCC和侧链α位被13C标记的DHPCC-13C时发现，DHPCC中木素结构单元以β-O-4、β-β、β-5和β-1方式连接为主，还含有少量的松柏醇结构和肉桂醇结构；DHPCC中木素与纤维素之间以苯甲醚键、苯甲酯键及缩醛键连接，其中，缩醛键与酯键可能为主要的连接方式。
关键词：纤维素；13C标记；木素
Study on the Bonds between Lignin and Cellulose by 13Carbon Isotope Tracer Method
FAN Jian-yun1， XIE Yi-min2 YANG Hai-tao1 LI Song-li1 WANG Peng1
(1. State Key Lab of Pulp & Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640；2. Shandong Key Lab of Pulp & Paper Engineering, Shandong Institute of Light Industry, Ji′nan, Shandong Province, 250100)
(*E-mail:fanjianyun@sohu.com)
Abstract:DHP-Cellulose complexes (DHPCC) were prepared through polymerization of swollen microcrystalling cellulose and coniferin or coniferin-［α-13C］ in existence of β-glucosidase, glucose oxidase and peroxidase. The results of ana lysis of DHPCC by CP/MAS 13C-NMR showed that β-O-4、β-β、β-5 and β-1 structures were the main substructures of DHPCC. DHP could connect with cellulose through benzyl ether linkage, ester bond and ketal bond which mainly occurred at α-position. Benzyl ether linkage between lignin and cellulose perhaps was the main structure.
Keywords: cellulose;13C-isotopic tracer; lignin
（责任编辑：关 颖）
缩合型木素模型物的合成及LCC的变化情况
周 燕1 谢益民1 甘定能2 杨志勇1 杨海涛3
（1.山东轻工业学院制浆造纸工程省级重点学科，山东济南，250100；2.湖南泰格林纸集团有限责任公司，湖南岳阳，414002；3.华南理工大学制浆造纸工程国家重点实验室，广东广州，510640）
摘 要：合成了一种缩合型木素模型化合物——脱氢二香草醇，并利用红外光谱、核磁共振谱对其进行了分析和确认。在此基础上，模拟硫酸盐法蒸煮过程，将合成的木素模型物和典型的半纤维素组成部分（木聚糖、木糖）进行蒸煮，然后利用酸析沉淀木素、乙酸乙酯抽提的方法将蒸煮后的产物分级,并利用FT-IR、13C-NMR对分级后的各个部分进行分析，探讨传统硫酸盐法制浆过程中木素-碳水化合物复合体（LCC）的形成机理。
关键词：脱氢二香草醇；硫酸盐法蒸煮；木聚糖；木糖；木素-碳水化合物复合体
Synthesis of Condensed Lignin Model Compound and Formation Mechanism of LCC during Kraft Cooking
ZHOU Yan1 XIE Yi-min1 GAN Ding-neng2 YANG Zhi-yong1 YANG Hai-tao3
(1. Shandong Key Lab of Pulp & Paper Engineering, Shandong Institute of Light industry, Ji′nan, Shandong Province, 250100; 2. Hu′nan Yueyang Paper Co. Ltd., Yueyang, Hu′nan Province, 414002; 3. State Key Lab of Pulp & Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640)
(*E-mail:zhouyan007@163.com)
Abstract: A type of condensed lignin model compound-dehydrodivanillylalcohol was synthesized with a modified method. The technique of FT-IR and 1H-NMR was used to identify its chemical structure. The synthesized lignin model compound was cooked by kraft process in existence of
typical hemicellulose such as xylan and xylose. The products were separated by acidification and ethyl acetate extraction. The infrared spectra analysis and 13C-NMR were used to identify the LCC formed during kraft cooking. The research indicated that dehydrodivanillylalcohol was very stable during kraft cooking. Most of the undegraded dehydrodivanillylalcohol and newly formed LCC structure presented in acid insoluble residue and ethyl acetate extractive in existence of xylan. Most of the undegraded xylan presented in the acid insoluble residue. No newly formed LCC structure was found in the acid soluble residue and alkali insoluble residue. Most of the undegraded dehy drodivanillylalcohol and newly formed LCC structure presented in ethyl acetate extractive in existence of xylose. No newly formed LCC structure was found in the acid insoluble residue and acid soluble residue.
Keywords: dehydrodivanillylalcohol; kraft cooking; xylan; xylose; LCC
（责任编辑：关 颖）
桉木常规KP浆和RDH浆的氧脱木素研究(Ⅴ)——ClO2预处理对RDH浆氧脱木素的改善效果
李雪芝1 赵 建1，* 石淑兰2
（1.山东大学微生物技术国家重点实验室，山东济南，250100； 2.天津科技大学材料科学与化学工程学院，天津，300222）
摘 要：研究了ClO2预处理对桉木RDH硫酸盐浆氧脱木素的影响。结果表明，在桉木RDH浆氧脱木素前，用少量ClO2，在低温下对浆料进行短时间的预处理，即可改善氧脱木素效果，降低氧漂浆的卡伯值，有效增加纸浆白度（如用0.3%ClO2，40℃下预处理5 min，脱木素程度增加10.6%，白度提高7.87个百分点），而预处理对纸浆黏度影响不大。
关键词：硫酸盐浆；RDH；氧脱木素；ClO2预处理
Oxygen Delignification of RDH Kraft Pulp from Eucalyptus after Chlorine Dioxide Pretreatment
LI Xue-zhi1 ZHAO Jian1， SHI Shu-lan2
(1. State Key Lab of Microbial Technology, Shandong University, Ji′nan, Shandong Province, 250100;2.College of Material Science and Chemical Engineering， Tianjin University of Science & Technology, Tianjin, 300222)
(*E-mail:zhaojian@sdu.edu.cn)
Abstract: Effect of chlorine dioxide pretreatment on oxygen delignification of RDH(Rapid displacement heating) kraft pulp from eucalyptus was studied in the paper. The results showed that pretreatment with low charge of chlorine dioxide under the conditions of low temperature and short pretreatment time increased the efficiency of oxygen delignification of RDH pulp, and produced oxygen-delignified-pulp with lower kappa number and higher brightness compared with the pulpproduced by single stage oxygen delignification. For example, when the pulp was pretreated with 0.3%ClO2 on 40℃ for 5 minutes, degree of oxygen delignification was increased by 10.6%, and brightness of oxygen bleached pulp increased by 7.87%ISO. Furthermore, chlorine dioxide pretreatment had little influence on viscosity of the pulp.
Keywords: kraft pulp; RDH; oxygen delignification; chlorine dioxide pretreatment
（责任编辑：常 青）
深度脱木素竹浆氧脱木素工艺的优化
曹石林1,2 詹怀宇1 付时雨1 陈礼辉2
（1.华南理工大学制浆造纸工程国家重点实验室，广东广州，510641；2.福建农林大学材料工程学院，福建福州，350002）
摘 要：对深度脱木素竹浆氧脱木素的影响因素进行了研究。结果表明，影响深度脱木素竹浆氧脱木素的工艺参数有用碱量、温度、反应时间、氧气压力和MgSO4用量。从氧脱木素后竹浆卡伯值和黏度的变化考虑，深度脱木素竹浆氧脱木素的最佳工艺条件为：用碱量3%，温度90℃，反应时间80 min，氧压0.5 MPa，MgSO4用量0.5%。在此最佳工艺条件下进 行氧脱木素，漂后竹浆具有较低的卡伯值和较高的黏度。研究结果也表明，深度脱木素竹浆氧脱木素，木素脱除率和黏度降低率都随着原浆卡伯值的降低逐渐减小。对于深度脱木素竹浆而言，应先以最佳蒸煮工艺条件蒸煮得到较低卡伯值竹浆，再进行氧脱木素漂白较适宜。与常规硫酸盐法竹浆相比，深度脱木素竹浆具有更好的氧脱木素效果，氧脱木素选择性更高。
关键词：深度脱木素竹浆；氧脱木素；脱木素选择性
Optimization of Oxygen Delignification of EMCC Bamboo Pulp
CAO Shi-lin1,2 ZHAN Huai-yu1 FU Shi-yu1 CHEN Li-hui2
（1. State Key Lab of Pulp & Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510641; 2. Institute of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350002）
(*E-mail:scutcsl@163.com)
Abstract: The factors affecting oxygen delignification of bamboo EMCC pulp were studied. The results indicated that alkali charge, temperature, time, oxygen pressure and MgSO4 charge were the affecting factors. The optimal oxygen delignification conditions of bamboo EMCC pulp were NaOH charge of 3%, temperature of 80℃, time of 80min, oxygen pressure of 0.5MPa and MgSO4 charge of 0.5%. The delignification rate of bamboo EMCC pulp was high without significant loss of pulp viscosity in the conditions. The results also showed that the delignification rate and the reduction rate of viscosity decreased as the Kappa number of bamboo EMCC pulp decreased. It was suitable for bamboo EMCC pulp that the bamboo pulp with lower Kappa number was produced with optimal cooking conditions and followed by oxygen delignification of bamboo EMCC pulp. The EMCC bamboo pulp had higher oxygen delignification selectivity compared with the conventional kraft bamboo pulp.
Keywords: bamboo; bamboo EMCC pulp; oxygen delignification; the selectivity of oxygen delignification
（责任编辑：赵旸宇）
硫酸盐竹浆光催化漂白的初步研究
李 滨 刘明友 肖仙英
（华南理工大学造纸与污染控制国家工程研究中心，广东广州，510640）
摘 要：简述了3种纸浆光催化漂白的脱木素机理，并以基于光敏剂产生单线态氧机理的光催化漂白为例，对硫酸盐竹浆进行了实验。实验结果表明，随着光催化漂白时间的增加，漂后浆的白度上升，KMnO4值和黏度下降。紫外与红外光谱分析表明：光催化漂白过程中，木素的芳环可能发生开环，部分醚键断裂，苯基丙烷结构断裂，导致木素降解；纸浆中碳水化合物也有部分降解。
关键词：硫酸盐竹浆；光催化漂白；单线态氧；脱木素机理
The Preliminary Study of Bamboo Kraft Pulp Photocatalysis Bleaching
LI BinLIU Ming-you XIAO Xian-ying
(National Engineering Research Center of Papermaking and Pollution Control, South China University of Technology, Guangzhou, Guangdong Province, 510640)
(*E-mail:eagleer@sina.com)
Abstract: The delignification mechanisms of three different kinds of photocatalysis bleaching of pulp were briefly reviewed in this paper. An experiment of bamboo kraft pulp singlet oxygen bleaching through sensitizer at irradiation was carried out. The experiment results indicated that with the increasing of photocatalysis bleaching time, the brightness is increasing, the KMnO4 value is falling, and the viscosity of the pulp is decreasing continuously. UV/Vis and FTIR spectroscopes indicated that the degradation of lignin is induced by the opening of aromatic ring and the cleavage of some ether linkage and phenylpropane structures during the photocatalysis bleaching; moreover, carbohydrate of the pulp is degraded partially.
Keywords: bamboo KP; photocatalysis bleaching; singlet oxygen; delignification mechanism
（责任编辑：杜荣荣）
不同制浆方法的纸浆酸处理降低卡伯值的机理
张金宝 张运展 徐龙泉
（大连轻工业学院，辽宁大连，116034）
摘 要：研究了3种亚硫酸盐浆（杨木AS-AQ、NS-AQ、落叶松AS-AQ）和2种硫酸盐浆（杨木KP、落叶松KP）在不同酸水解条件下水解产物的紫外和红外光谱图。结果表明，在pH值3.0、90℃下的酸水解，各种浆的水解产物都不含己烯糖醛酸，而含有酸溶木素。在110℃下按测定己烯糖醛酸的方法进行酸水解处理，3种亚硫酸盐浆的水解产物含酸溶木素而不含己烯糖醛酸，而2种硫酸盐浆含有己烯糖醛酸，也含有酸溶木素。从而证明了亚硫酸盐浆和硫酸盐浆酸处理导致卡伯值降低的机理差异。
关键词：亚硫酸盐浆；硫酸盐浆；酸水解；己烯糖醛酸；酸溶木素
The Mechanism of Kappa Number Decrease of Various Pulps by Acid Treatment
ZHANG Jin-bao* ZHANG Yun-zhan XU Long-quan
(Dalian Institute of Light Industry, Dalian, Liaoning Province, 116034)
(*E-mail:zhangjb@126.com)
Abstract: The UV and IR spectrograms of hydrolysates of acid hydrolysis under various conditions for 3 types of sulfite pulp(AS-AQ of poplar, NS-AQ of poplar, AS-AQ of larch) and 2 types of KP (KP of poplar, KP of larch) were studied. The result showed that the hydrolysates of all the pulps don''t contain hexenuronic acid, but contain acid soluble lignin when acid hydrolysis was carried out under the conditions of pH 3.0 and 90℃. However, when the hydrolysis process is at 110℃ and in accordance with the procedure for hexenuronic determination, the hydrolysates of 3 types of sulfite pulp contain acid soluble lignin, but don''t contain hexenuronic acid. The hydrolysates of 2 types of KP contain hexenuronic acid and acid soluble lignin. The result showed the different mechanism of Kappa number reduction between sulfite pulp and KP when they were treated with acid.
Keywords: sulfite pulp; KP; acid hydrolysis; hexenuronic acid; acid soluble lignin
（责任编辑：马 忻）
芽孢杆菌A-30碱性木聚糖酶用于麦草浆酶法改性的研究
陈嘉川1，2 曲音波2 杨桂花1 姜英辉2 陈士成2 庞志强1
(1.山东轻工业学院制浆造纸工程省级重点学科，山东济南，250100；2.山东大学微生物技术国家重点实验室，山东济南，250100)
摘 要：从碱性土壤中分离得到一株耐碱性β-1，4-聚糖酶高产细菌A-30，经初步鉴定属
短小芽孢杆菌(Bacillus pumilus)。采用麸皮为主要碳源，尿素为主要氮源，在pH值8.0、温度32℃，发酵至一定时间，最高木聚糖酶活可达400 IU/mL，纤维素酶活可达0.60 IU/mL以上。探讨了用其所产木聚糖酶处理漂白麦草浆以改善其性能的可能性。结果表明，A-30粗酶液可以改善草浆的滤水性、强度和脆性，最适宜的酶用量为2～5 IU/g浆。
关键词：芽孢杆菌；木聚糖酶；纤维素酶；麦草浆；酶法改性
Modification of Bleached Wheat Straw Pulp with an Alkali-tolerant Xylanase from Bacillus sp. A-30
CHEN Jia-chuan1,2 QU Yin-bo2 YANG Gui-hua1 JIANG Ying-hui2 CHEN Shi-cheng2 PANG Zhi-qiang1
(1.Shandong Institute of Light Industry, Jinan, Shandong Province, 250100; 2.State Key Lab of Microbial Technology, Shandong University, Jinan, Shandong Province, 250100)
(*E-mail:chenjc@sdili.edu.cn)
Abstract: A strain A-30 which produced extracellular alkali-tolerant β-glycanase was screened and identified as Bacillus pumilus. When A-30 was cultured on complex medium containing wheat bran as main carbon source and urea as nitrogen source for a period with initial pH 8.0 and 32℃, the highest xylanase activity reached about 400 IU/mL and cellulase activity over 0.60 IU/mL. Enzymatic modification of the bleached wheat straw pulp with the crude enzymes was investigated. The results showed that the properties such as drainage, physical strength and fragility of the pulp were improved at the optimum enzyme dosage of 2～5 IU/g pulp.
Keywords: Bacillus pumilus; xylanase; cellulase; wheat straw pulp; enzymatic modification
（责任编辑：孙秋菊）
降解木片树脂的白腐菌菌种选育与脱除树脂过程
徐晓峰 何北海 石海强 徐丽丽 林 鹿
（华南理工大学制浆造纸工程国家重点实验室，广东广州，510640）
摘 要：通过在自然界采集、室内平板初筛及平板变色反应复筛得到了20株白腐菌菌株，并对变色系数最小的一株菌株G进行松木片固体接种实验。测定经2种不同浓度无机盐稀释的菌悬液接种松木片3天、5天、7天、9天后的木素、树脂降解情况。结果显示，随着接种时间增加，松木片失重率逐渐增大，Klason木素、酸溶木素和总木素含量逐渐下降，苯-醇抽出物和二氯甲烷抽出物含量也逐渐减少。表面扫描电镜照片表明，接种白腐菌的木片细胞壁上产生了明显的腐朽沟槽等现象；白腐菌菌丝在木片表面的生长呈由少到多、由凌乱到较有规律排列；松木片切片断面显微结构显示菌丝在细胞壁部位及胞间层也开始出现，这说明菌丝开始向细胞内部渗透。
关键词：白腐菌；木素；树脂；降解
Pitch-Degrading Fungus Strains Screening and Application in Pitch Removal
XU Xiao-feng HE Bei-hai SHI Hai-qiang XU Li-li LIN Lu
(State Key Lab of Pulp & Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640)
(*E-mail:xuxf@scut.edu.cn)
Abstract: Twenty strains were obtained by petri dishes screening and petri dishes color reaction screening. One of the strains G with minimum Mycel/Col value was inoculated onto the Masson Pine chips surfaces. The degradation rates of lignin and pitch were determined after 3 days, 5 days,7 days and 9 days respectively. The wood weight loss increased along with the inoculation time increased. The contents of Klason lignin, acid soluble lignin and total lignin decreased during the 3 days to 9 days period of strain inoculation. The contents of dichloromethane (DCM) extractives and alcoholbenzene solubles in wood decreased gradually when the inoculation time continued. The growth of the white-rot fungus strain G and the ultrastructural change of the wood were studied by scanning electron microscope (SEM). The results showed that G not only had great ability to degrade lignin in a short time, but also had a good ability to reproduce the hypha. Besides,the crosssection study of Masson Pine also showed that hypha appeared on the cell walls and the intercellular layers.
Keywords: white rot fungus; lignin; pitch; degradation
（责任编辑：房宝伦）
纸张用氨基硅油柔软剂的制备及应用研究
郭飞鸽 李小瑞
(陕西科技大学轻化工材料与设计研究所,陕西咸阳，712081)
摘 要：以八甲基环四硅氧烷、N-β-氨乙基-γ-氨丙基甲基二甲氧基硅烷等为原料，合成了一种侧链取代的氨基硅油（ASO），并将其制成微乳液(ASO微乳液)，用作纸张柔软剂。研究发现，随着ASO柔软剂氨值的增加，处理后的纸张柔软度、防水性增加；随着ASO用量的增加，处理后纸张的强度下降。ASO的黏度越大，处理后的纸张越柔软。扫描电子显微镜（SEM）研究发现，用ASO柔软剂处理后的纸纤维显得疏松，所以具有柔软性。
关键词：氨基硅油；纸张柔软剂；氨值；黏度
Preparation and Application of Aminosilicone as a Paper Softener
GUO Fei-ge LI Xiao-rui
(Institute of Light Chemical Industry Materials and Design, Shaanxi University of Science & Technology, Xianyang, Shannxi Province, 712081)
(*E-mail:guofeige@yahoo.com.cn)
Abstract:An aminoethylaminopropylpolysiloxane is synthesized by the reaction ofoctamethylcyclotetra siloxane and N-β-（Aminoethy1）-γ-aminopropy1methy1 dimethoxysilane. The product is emulsified and then used as paper softener. The results showed that the softness and waterproofness of the treated paper increase with the increase of the content of amino groups in the polysiloxane side chain. However, the strength of the treated paper declines when the dosage of aminosilicones in the pulp increases. The viscosity of amino silicones has influence on the paper softness. The higher the viscosity of the aminosilicones is, the softer the treated paper is. The aminosilicone deposited on the paper fibre forms a hydrophobic thin film on the fibre surface, so the SEM observation indicates the treated fibre is more fluffy than the fibre untreated. It is the reason why the treated paper is softer.
Keywords: aminosilicone; paper softener; amine equivalence; viscosity
（责任编辑：梁 川）
聚氨酯化改善纸张物理性能的研究
李佩NC525 王志杰 李鸿魁
（陕西科技大学造纸工程学院，陕西咸阳，712081）
摘 要：研究了异佛尔酮二异氰酸酯（IPDI）对纸张聚氨酯化处理的方法。通过多媒体电子显微镜和傅里叶变换红外光谱，分析了所合成的聚氨酯材料的物理性能及聚氨酯结构的形成机理。研究结果表明，不同浆料经过聚氨酯化处理后，其强度提高的顺序为：棉浆>针叶木浆>阔叶木浆>苇浆。当棉浆打浆度为73°SR、IPDI用量12％、反应时间10 min，反应温度60℃时，聚氨酯化后纸张的裂断长提高58.40％，湿强度为干强度的50.61％，耐折度为原来的13.4倍，耐破指数增加67.73％，撕裂度下降55.91%。通过IR光谱分析IPDI对纸张的增强作用是由于纸张聚氨酯化后生成氨基甲酸酯结构，使得纤维之间存在有较多的聚合物起架桥作用，把纤维间的氢键结合转化为化学键结合，从而增强纤维之间的连接，提高纸张强度，尤其是湿强度。
关键词：聚氨酯化; IPDI; 打浆度; 物理性能
Modification of Paper with Polyurethane
LI Pei-yi WANG Zhi-jie LI Hong-kui
(College of Paper Engineering, Shannxi University of Science & Technology, Xianyang, Shannxi Province, 712081)
(*E-mail:lipplpy@163.com)
Abstract: The methods of synthesizing polyurethane with the reaction of isophorone diisocyanate (IPDI) and paper were investigated. The combination of multimedia microscope and IR analysis was used to analyze the chemical and physical characteristics of the polyurethane derived from paper and the forming mechanism of the polyurethane structure. The strength of the polyurethane derived from paper is different depending on the pulps used, the order of strength from high to low is cotton pulp, softwood pulp, hardwood pulp and reed pulp. When cotton pulp is used and its beating degree is 73°SR, dosage of IPDI is 12%, reaction time 10 min and temperature 60℃, the breaking length of the resultant product increases by 58.40%, and wet strength/dry strength is 50.61%, folding endurance increases 12.4 times, burst index increases by 67.73%. It is found that carbonate bond is formed between IPDI and cellulose of the fibers when the paper is treated with IPDI. The hydrogen bond can be changed into chemical bond and the paper''s physical strength, especially the wet strength is enhanced through this treatment.
Keywords: polyurethane; IPDI; beating degree; physical characteristics
（责任编辑：常 青）
聚苯胺/纸浆纤维复合制造导电纸（Ⅰ）——吸聚条件对导电纸性能的影响
宋 豪 钱学仁 王立娟 谢 玮
(东北林业大学生物质材料科学与技术教育部重点实验室，黑龙江哈尔滨，150040)
摘 要：采用原位吸附聚合法使苯胺聚合于纸浆纤维的微孔壁中制备了导电纸。系统地研究了氧化剂K2S2O8和(NH4)2S2O8用量、反应温度、反应时间等对导电纸表面电阻率的影响，优化了制备导电纸的最佳吸聚条件：聚合时间105 min，反应温度5℃，氧化剂的用量取决于氧化剂的种类，当K2S2O8为氧化剂时，氧化剂与苯胺质量比为1∶2最佳，导电纸的表面电阻率为481 Ω/cm2；当(NH4)2S2O8为氧化剂时，氧化剂与苯胺质量比为3∶4最佳，导电纸的表面电阻率可达108 Ω/cm2。作为氧化剂，(NH4)2S2O8优于K2S2O8。
关键词：导电纸；聚苯胺；纸浆纤维
Conductive Paper Manufactured with the Composite of PAn/Pulp Fiber（Ⅰ）——Effects of Adsorption and Polymerization Conditions on the Performances of Conductive Paper
SONG Hao QIAN Xue-ren* WANG Li-juan XIE Wei
(Key Lab of Bio-based Material Science & Technology (Northeast Forestry University), Ministry of Education, Harbin,Heilongjiang Province, 150040)
(*E-mail:qianxueren@yahoo.com.cn)
Abstract: In this paper, aniline was polymerized into the micro-pore wall of the pulp fiber by in-situ adsorption polymerization process in order to manufacture conductive paper. The effects of different reaction conditions including amount of oxidant (potassium persulfate or ammonium persulfate), reaction temperature and reaction time on the surface resistance of conductive paper were studied in detail. The optimum adsorption polymerization conditions were: polymerization time 105 minutes, reaction temperature 5°C. The mass ratio of oxidant to aniline is dependent on the types of oxidant. When potassium persulfate was used as oxidant, the optimum mass ratio of oxidant to aniline was 1∶2 and the surface resistivity of the conductive paper was 481 Ω/cm2. However, the optimum mass ratio of oxidant to aniline was 3∶4 and the surface resistivity was up to 108 Ω/cm2 when ammonium persulfate was used as oxidant. Thus, ammonium persulfate is better than potassium persulfate as oxidant.
Keywords：conductive paper; polyaniline; doping; pulp fiber
（责任编辑：赵旸宇）
乳化剂对原位聚合蜜胺甲醛树脂微胶囊成囊性的机理研究
甄朝晖 陈中豪
(华南理工大学环境与污染控制国家工程研究中心，广东广州，510640)
摘 要：以苯乙烯马来酸酐的共聚物树脂作为乳化剂，研究了其对形成蜜胺甲醛树脂微胶囊 的乳化和成囊的作用机理。结果表明：乳化剂用量和pH值对微胶囊制备的成囊性和ζ电位有至关重要的作用，它直接影响微胶囊制备的成功以及胶囊粒子的平均粒度和粒径分布。乳化形成双电层结构。乳化剂的作用主要是乳化稳定和电荷效应，使壁材在芯材液滴表面进行有效的缩聚反应并抑制其在水相中的副反应。
关键词：微胶囊；乳化剂；蜜胺甲醛树脂；原位聚合
Effect of Emulsifier on the Encapsulation of Melamine Formaldehyde Resin Microcapsule
ZHEN Zhao-hui CHEN Zhong-hao
(National Engineering Research Center of Papermaking and Pollution Control, South China University of Technology, Guangzhou, Guangdong Province, 510640)
(*E-mail: zhwy087@163.com)
Abstract: The effect of the emulsifier styrene maleic anhydride copolymer (SMA) on the emulsification and encapsulation of melamine formaldehyde resin microcapsule was studied. The results indicated that the dosage and pH value of the emulsifier have important effects on zeta potential and encapsulation in the process of in-situ polymerization. The emulsifier influences the capsule preparation, mean particle size and particle size distribution of microcapsules. The process of emulsification forms electric double layer. The main function of the emulsifier is to make emulsification stable and has electric charge effect, which can make the wall material poly-condensate on the surface of the droplets, and prevent the side reaction taking place in the water phase.
Keywords: microcapsule; emulsifier; melamine formaldehyde resin; in-situ polymerization
（责任编辑：王 岩）
定量对纸张不透明度及特定光吸收系数的影响
于冬梅1陈克复 1 赵传山2 杨仁党 1 洪义梅1
（1.华南理工大学制浆造纸工程国家重点实验室，广东广州，510641；2.山东轻工业学院轻化与环境工程学院，山东济南，250100）
摘要：特定光吸收系数比白度更能准确地反映纸浆中的发色团浓度，成为非脱木素漂白动力学研究的主要参数之一，而纸张定量是影响光学系数的一个重要因素。本文根据KubelkaMunk理论探讨了定量对不透明度及特定波长的光吸收系数的影响。不透明度随定量的变化采用Boltzmann函数进行非线性回归，达到99.98%的相关性，说明定量对不透明度起决定性作用而光散射系数的影响可忽略不计。而定量对特定光吸收系数的影响比较复杂，457nm处的光吸收系数随定量的变化可分为3个阶段：平缓段、上升段及持续下降段。平缓段内纸样的不透明度＜95％，对应的纸张定量≤60 g/m2，光吸收系数变化的平缓段内适宜进行漂白动力学研究。
关键词：KubelkaMunk理论；不透明度；光吸收系数
The Influence of Basis Weight on Opacity and Light Absorption Coefficient of Paper
YU Dong-mei1，*CHEN Ke-fu 1 ZHAO Chuan-shan 2 YANG Ren-dang 1 HONG Yi-mei1
(1.State Key Lab of Pulp & Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640;2. School of Light Chemistry and Environment Engineering, Shandong Institute of Light Industry, Jinan, Shandong Province, 250100)
(E-mail:yudongmei197@163.com)
Abstract: The specific wavelength light absorption coefficient of the pulp is more accurate to indicate the chromophore concentration of the pulp than the measurement of brightness, and becomes an important parameter in the study of the kinetics of nondelignifying bleaching, while the basis weight has a markedly influence on optical coefficient. In this paper, the influences of the basis weight on opacity and specific wavelength light absorption coefficient were studied based on the theory of KubelkaMunk. The change of opacity with the basis weight fits the Boltzmann function with the relativity of 99.98%, indicating that basis weight plays a decisive role on the opacity value while the influence of scattering coefficient can be ignored. The varying of the absorption coefficient in 457 nm with basis weight can be divided into three stages, that are levelling stage, ascending stage and continuously descendant stage. Within the levelling stage, the opacity is less than 95% and the corresponding basis weight is less than or equal to 60 g/m2, and this stage is suitable for bleaching kinetic study.
Keywords:KubelkaMunk theory; opacity; absorption coefficient (责任编辑：杜荣荣)
麦草浆黑液除硅工艺研究
邱玉桂1 陈春霞 1 蔡联生 1 王书义2
（1.华南理工大学制浆造纸工程国家重点实验室，广东广州，510640； 2.河南省驻马店第一造纸厂，河南驻马店，463000）
摘要：用沉淀法和气浮法进行麦草浆黑液除硅工艺研究。结果表明，两种方法均能有效地降低黑液中的硅含量。在实验条件下，优选出的沉淀法除硅条件为：MgO用量5g/L，Ca(OH) 2 用量16 g/L，Fe2(SO4) 3用量60mg/L，温度40℃；在此条件下，黑液的Si去除率可达89％。优选出的气浮法除硅条件为：Al(NO) 3用量8g/L，月桂酸用量1g/L，乙醇用量100mL/L，温度60℃；在此条件下，黑液的除硅率达90％以上。适当调节黑液的pH值，对改善气浮法的除硅效果有利，既可提高硅的去除率，又能维持黑液中较低的Al元素含量，有利于黑液碱回收的进行。
关键词：麦草浆；黑液；除硅；沉淀法；气浮法；优化
Study on Silicon Removal Process for Wheat Straw Pulping Black Liquor QIU Yu-gui1，*CHEN Chun-xia 1 CAI Lian-sheng1WANG Shu-yi2
(1. State Key Lab of Pulp & Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640;2. Zhu Ma Dian Paper Mill, Zhu Ma Dian, He′nan Province, 463000)
(E-mail:lcygqiu@scut.edu.cn)
Abstract: The silicon removal of wheat straw pulping black liquor by means of both processes of the sedimentation and the airfloatation was studied. The results showed that each process used could effectively decrease the content of silicon of black liquor. The optimal silicon removal conditions for sedimentation process are: MgO dosage 5 g/L, Ca(OH)2 dosage 16 g/L，Fe2(SO4)3 charge 60 mg/L，temperature 40℃ and the silicon removal rate can reach 89% under these conditions. On the other hand, the optimal conditions for airfloatation process are as follows: Al(NO)3 charge 8 g/L，lauric acid dosage 1 g/L，ethanol dosage 100 ml/L，temperature 60℃, and silicon removal rate is higher than 90%. In the mean time , an appropriate adjustment of the pH of black liquor will not only considerably increase the removal rate of silicon, but also maintain a lower residual content of aluminum in the air floatation process. It is of benefit to the successful operation of the alkali recovery of straw pulping black liquor.
Keywords:wheat straw pulp; black liquor; silicon removal; sedimentation; airfloatation; optimize (责任编辑：马 忻)
白构皮过氧化氢草酸盐法蒸煮废液综合利用方法的研究
李新平 1索晓红1 陈立红2
（1. 陕西科技大学造纸工程学院，陕西省造纸技术及特种纸品开发重点实验室，陕西咸阳，712081；2. 陕西科技大学化学与化工学院，陕西咸阳，712081）
摘要：对白构皮过氧化氢草酸盐法蒸煮废液的综合利用进行了初步研究。结果表明，用铝盐盐析法可有效提取白构皮过氧化氢草酸盐法蒸煮废液中的果胶，使用该方法不仅可以获得果胶，而且废液的污染负荷大幅度降低。
关键词：白构皮；蒸煮废液；果胶；Al2(SO4)3；污染
Comprehensive Utilization of Waste Liquor from White Paper Mulberry Bast Peroxide Oxalate Pulping
LI Xin-ping1，*SUO Xia-hong1 CHEN Li-hong 2
(1. Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper,College of Papermaking Engineering, Shaanxi University of Science & Technology, Xianyang，Shaanxi Province， 712081;2. College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xianyang， Shaanxi Province，712081)
(E-mail:lixp@sust.edu.cn)
Abstract:The preliminary study of comprehensive utilization of white paper mulberry bast peroxide oxalate pulping was carried out. The results showed that the aluminium sulfate salt precipitation can effectively draw out the pectin from the waste liquor of white paper mulberry bark peroxide oxalate cooking.It not only can obtain pectin，but also can cut down the pollution load significantly.
Keywords:white paper mulberry bast； cooking waste liguor； pectin；Al2(SO4)3 pollution
(责任编辑：孙秋菊)
碱性和中性亚硫酸盐法蒸煮废液做粘合剂的研究
张运展 于俊杰 宋文静
（大连轻工业学院，辽宁大连，116034）
摘 要：对中性亚硫酸钠-蒽醌法杨木蒸煮废液（NS-L）和碱性亚硫酸钠-蒽醌法落叶松蒸煮废液(AS-L)做锌矿粉的成型粘合剂进行了研究。并与二者的混合液（体积比4∶1）(M-L)、酸性亚硫酸盐法木浆废液(Ca-L)及亚硫酸氢镁法苇浆废液(Mg-L)的粘结效果进行了比较。NSL的适宜工艺条件是：干燥温度165℃；干燥时间15 min；物料配比为锌矿粉、废液用量、水的质量比为75∶5∶1，抗拉强度可达1.732 MPa。AS-L的适宜工艺条件是：干燥温度175℃，其余同NSL，抗拉强度可达1.656 MPa。在各自的适宜工艺条件下，取相同的废液用量（浓度约50%的废液用量5%，对矿粉），NSL具有最好的粘结效果；其次是AS-L、Mg-L和M-L，这三者的粘结效果相近；Ca-L的粘结效果最差。
关键词：碱性亚硫酸盐法废液；中性亚硫酸盐法废液；粘结剂；综合利用
The Application of Alkaline and Neutral Sulfite Pulping Waste Liquor as Adhesive
ZHANG Yun-zhan* YU Jun-jie SONG Wen-jing
(Dalian Institute of Light Industry, Dalian, Liaoning Province, 116034)
(E-mail:yunzhanzh@dlili.edu.cn)
Abstract: Aspen neutral sulfite-anthraquinone pulping waste liquor (NS-L) and Larch alkaline sulfite-anthraquinone pulping waste liquor (AS-L) are used as the adhesive for the forming of zinc ore powder. Their adhesive effects are compared with that of the blended waste liquor of NS-L and AS-L (volume ratio 4∶1)(M-L), the wood acidic sulfite pulping waste liquor (Ca-L) and reed magnesium bisulphite pulping waste liquor (Mg-L). The optimum application conditions of NS-L used as the adhesive of zinc ore powder are that drying temperature 165℃; drying time 15 min; the mass ratio of zinc fine ore: waste liquor: water=75∶5∶1. The tensile strength reaches 1.732MPa under these conditions. The optimum conditions of AS-L are the same as NS-L except that the drying temperature is 175℃, the tensile strength reaches 1.656MPa. NS-L has the best adhesive effect, the followings are AS-L, Mg-L and M-L which have the similar adhesive results. Ca-L has the worst adhesive effect among these waste liquor when the comparison is made on the same application dosage and under respective optimal application conditions.
Keywords:alkaline sulfite pulping waste liquor; neutral sulfite pulping waste liquor; adhesive; comprehensive utilization
(责任编辑：房宝伦)
球形木素树脂的胺化改性研究
范 娟1，2 詹怀宇1
（1. 华南理工大学制浆造纸工程国家重点实验室，广东广州，510640；2. 华南理工大学化工与能源学院，广东广州，510640）
摘要：用3-氯-2-羟丙级-三甲基氯化铵(CHPTA)对球形木素磺酸盐树脂(RLS)进行了胺化改性，在树脂结构中引入季铵基团，得到的产品同时具有阴阳离子交换与吸附作用，是一种含有磺酸基、羟基、羰基和季铵基等多功能基团的球形木素基吸附剂(ARLS)。通过正交实验确定了实验室研究的优化条件，在优化条件下制得的胺化改性产品的阴离子交换容量为0.67mmol/g，阳离子交换容量为2.22mmol/g。
关键词：球形木素磺酸盐树脂； CHPTA；胺化改性
Study on the Amination of Spherical Lignin Resin
FAN Juan1,2，* ZHAN Huai-yu1
(1. State Key Lab of Pulp & Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640;2. College of Chemical & Energy Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640)
(E-mail:juanfan@scut.edu.cn)
Abstract: The spherical lignin resin (RLS), which was prepared with calcium lignosulphonate by reversed phase suspension polymerization, was modified with chlorohydroxypropyltrimethylammonium (CHPTA). The aminated product (ARLS) comprises a variety of functional groups, such as hydroxyl, carbonyl, sulphonic group and quaternary ammonium group, which endow both cation and anion exchange and adsorption abilities to ARLS. The reaction of RLS with CHPTA was investigated by orthogonal test. The anion exchange capacity of ARLS obtained under optimum conditions was 0.67mmol/g.
Keywords:spherical lignin resin; CHPTA; amination
(责任编辑：梁 川)
Pd/C催化下麦草碱木质素与氢气的还原反应
叶结旺 方桂珍* 杜添川
（东北林业大学生物质材料科学与技术教育部重点实验室，黑龙江哈尔滨，150040）
摘 要：以钯/炭(Pd/C)为催化剂，以氢气为还原剂与麦草碱木质素进行反应，分析了不同反应条件对催化效果的影响，用化学法测定了反应前后碱木质素官能团的含量， 并与环己烯还原法进行了比较。 结果表明，在Pd/C催化剂负载量为3%、用量0.1g/g、氢气流速20mL/min、反应温度363K、反应时间3h的条件下，反应后碱木质素的总羟基、酚羟基、醇羟基含量分别为14.39%、 4.21%和10.18%, 较反应前分别增加了133.68%、27.96%和264.87%。与环己烯法相比，氢气还原法的催化剂用量明显减少，醇羟基数增加较为显著，酚羟基含量基本一致。氢气还原活化效果明显优于环己烯还原效果。
关键词：Pd/C催化剂；碱木质素；还原反应
Hydrogenation of Straw Alkali Lignin Catalysed by Pd/C Catalyst YE Jie-wang FANG Gui-zhen * DU Tian-chuan
(Key Lab of Bio-based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, Heilongjiang Province, 150040)
(E-mail:fanggz@public.hr.hl.cn)
Abstract: Deoxidization reaction of straw alkali lignin and hydrogen was investigated in the presence of Pd/C catalyst. Influence of various reaction conditions on catalytic effect was considered. Functional groups of alkali lignin were determined by chemical methods before and after reaction and the deoxidization reactions performed by hydrogen and cyclohexene were compared. The results showed that at the condition of 3% of Pd in Pd/C catalyst, 0.1 g of catalyst dosage, a H2 flow of 20 mL/min, T=363K, reaction time of 3 h, the contents of total hydroxyl, phenolic hydroxyl and alcoholic hydroxyl of alkali lignin after reaction were 14.39%, 4.21% and 10.18%, with an increase of 133.68%, 27.96% and 264.87% respectively compared with the original alkali lignin. Compared with the reaction using cyclohexene as reducer, the dosage of catalyst was obviously reduced, alcoholic hydroxyl increased and the content of phenolic hydroxyl was almost the same. The deoxidization effect with hydrogen was superior to that with cyclohexene.
Keywords:Pd/C catalyst; alkali lignin; deoxidization reaction.
(责任编辑：常 青)
木素磺酸盐经催化热分解向轻质芳烃的转化
李崇武 王 昶 贾青竹 石淑兰
（天津科技大学材料科学与化学工程学院，天津，300222）
摘 要：以轻质芳烃苯、甲苯、二甲苯以及萘(BTXN)为目标产物，使用粉粒流化床对制浆废液中的木素磺酸盐进行了催化热分解实验，研究了常压下催化剂的种类、氛围气体、热分解温度等因素对热分解中间产物BTXN收率的影响。实验结果表明，木素磺酸盐含硫量高，而且挥发物质随温度变化大。在非活性流化介质硅砂下，反应气体的种类对木素磺酸盐热分解产物的影响较小；在氢气气氛下，催化剂CoMo-B可大大促进初次热分解来的焦油二次加氢分解反应，使中间产物苯、甲苯、二甲苯和萘等轻质芳烃化合物的收率有了明显提高，质量分数达2.52%，是介质硅砂条件下的3.3倍。要提高中间产物BTXN的收率，选择抗硫性强、加氢活性高的催化剂十分重要。
关键词：木素磺酸盐；催化热分解；流化床；轻质芳烃
Conversion of Lignin Sulfonate to BTX by Catalytic Pyrolysis
LI Chong-wu* WANG Chang JIA Qing-zhu SHI Shu-lan
(Faculty of Material Science & Chemical Engineering, Tianjin University of Science & Technology，Tianjin, 300222)
(E-mail:chongwuli@126.com)
Abstract:Experiment of catalytic pyrolysis of the lignin sulfonate was conducted by using a new type of powderparticle fluidized bed in order to improve the yield of the light aromatic hydrocarbon, i.e. benzene, toluene, xylene and napht halene (BTXN). The effects of catalyst species, fluidizing gases and pyrolysis temperature on the yield of the BTXN were investigated. The content of sulfur is high in the lignin sulfonate, and its volatile material is affected by the temperature. The yield and distribution of the pyrolysis products are almost unchanged under different kinds of atmosphere when the inert silica sand is used as media of the fluidized bed. When the catalyst CoMo-B is used and with hydrogen atmosphere, the intermediate BTXN yield reaches 2.52%(mass), daf, is 3.3 times of that when silica sand is used. Therefore, in order to obtain valuable BTXN as an intermediate in the pyrolysis as much as possible, it is crucial to select the catalyst with high sulfur resistance and hydrogenization activity.
Keywords:lignin sulfonate; biomass; catalytic pyrolysis; BTX; fluidized bed
(责任编辑：赵旸宇)
有机氯化物光催化反应动力学的研究
夏 璐 1，2 王双飞 2
（1. 广西民族学院化学与生态工程学院，广西南宁，530006；2.广西大学造纸研究所，广西南宁，530005）
摘 要：以五氯酚钠和氯代愈创木酚为目标物，在TiO2悬浮体系中对它们的暗吸附和紫外光催化氧化行为进行了研究，考察吸附和动力学的关系。实验表明，固体催化剂与溶液中组分的吸附在20 min内可以达到平衡，消除了光催化过程中吸附外扩散对反应速率的影响，得出了吸附平衡常数。研究了悬浮体系光催化反应的影响因素，获得了相关参数与反应速率间的定量关系。在实验基础上提出了有机氯化物光催化降解的动力学模型。
关键词：光催化；有机氯化物；反应动力学模型
The Photocatalytic Degradation of Organic Chlorine Contamints and its Kinetic Model
XIA Lu1,2,* WANG Shuang-fei2
(1.Faculty of Chemistry and Ecology Engineering, Guangxi Institute, Nanning, Guangxi Province, 530006; 2. Institute of Papermaking, Guangxi University, Nanning, Guangxi Province, 530005)
(E-mail:xialugx@163.com)
Abstract:The photocatalytic oxidation reaction and the reference reaction in UV-irradiated TiO2 suspension system with Na-PCP and 4-chloro-2-methoxyphenol as simulating compounds were investigated. Experimental results showed that the adsorption of solid catalyst reaches equilibrium in 20 min. The adsorption equilibrium constant is expressed as K＝(CS/Co) -βRT/Vm/Co［1-(CS/Co)-βRT/Vm］. The reaction kinetics was studied based on Na-PCP photocatalytic degradation. The effects of initial Na-PCP concentration, dosage of catalyst TiO2, pH of solution and UV-radiation intensity etc on the reaction kinetics were investigated. Langmuir rate constant expression is k＝S(1-0.318Co)I o 0.9477 (1/R2Rλ2D2-n) (RRλD+eRRλD-1)［0.00853+0.085e-(pH-5.89)2］.A kinetic model is proposed from pseudo first order LangmuirHinshelwood equation such as t＝1/(kK)ln(C0/Ct)+1/k(C0-Ct) to describe heterogeneous photocatalytic system. Based on the proposed model, the calculated value is in accordance with that from the 4-chloro-2-methoxyphenol degradation experiments. The correlation test result is R＝0.9673, which indicates that the kinetic model is relatively rational.
Keywords:photocatalytic; organic chlorine compound; kinetic model
(责任编辑：王 岩)
基于自适应模糊策略的打浆功率加权优化控制
周 强 1 韩九强 1 王 莹 2
（1.西安交通大学电子与信息工程学院，陕西西安，710049；2.高知大学理学院，日本高知市，j780-8073）
摘 要：主要研究造纸生产线上打浆过程的最优控制问题。针对打浆功率控制系统中存在的非线性、时变性、时滞性和严重的噪声干扰，及所造成的系统动、稳态性能差和最优工作点漂移的问题，提出一种具有优化和自适应调节功能的新型模糊控制策略。以功率误差和控制输出改变量的加权平方和为优化目标函数进行优化计算；根据优化结果在线调整基础模糊控制级中的模糊推理运算，以实现打浆质量的优化和过渡过程的平稳。研究表明，该方法能够使打浆能耗降低、纤维切断减少、帚化程度增加，使浆张质量的诸多物理性质普遍提高，系统稳定性和鲁棒性增强。
关键词：打浆功率；自适应模糊控制；优化；模糊推理；稳定性
Weighted Optimization and Control of Pulp Refining Power Based on Adaptive Fuzzy Algorithm
ZHOU Qiang1，* HAN Jiu-qiang 1 WANG Ying2
(1. College of Electronic and Information, Xi''an Jiaotong University, Xi''an,Shannxi Province, 710049；2.Faculty of Science, Kochi University, Kochi, j7808073)
(E-mail:xjtzhou@126.com)
Abstract: Considering the problems in the power control system of pulp refining including the drift of optimum working point and the decline of steady state performance and dynamic performance caused by strong nonlinear, time variation, time lag in the model of system, integrated with complex noise interference, an improved Fuzzy control method integrating optimization techniques and adaptive control strategy is proposed. The weighted sum of square average error and absolute
variable of controller output are used as optimization object function to conduct optimizing calculation. In view of optimization result fuzzy inference parameter is tuned adaptively, in order to calm dynamic course and improve pulp quality. Research results showed that this method can decrease energy consumption, increase tensile index, burst index, tear index and wet weight of the refined pulp. And this system has proved its better global robust and stability.
Keywords: pulp beating power; adaptive fuzzy control; optimization; fuzzy inference; global stability (责任编辑：李大力)
生物制浆过程中生物处理过程与效果的评价方法
李春鸣1 赵 建 2 陈嘉川1
（1.山东轻工业学院制浆造纸工程省级重点学科，山东济南，250100；2.山东大学微生物技术国家重点实验室，山东济南，250100）
摘 要：介绍了在生物制浆过程中评价生物处理过程和处理效果的一些方法，传统分析方法和现代仪器分析方法的相辅相成能够揭示生物制浆过程中原料发生的微观结构及化学方面的变化。
关键词：生物制浆；评价方法；化学组分
Evaluation Methods for Biotreatment Process and its Effect during Biopulping
LI Chun-ming1，* ZHAO Jian 2 CHEN Jia-chuan1
(1.Shandong Institute of Light Industry, Jinan, Shandong Province, 250100; 2. State Key Lab of Microbial Technology, Shandong University, Jinan, Shandong Province, 250100)
(*E-mail:zhaojian@sdu.edu.cn)
Abstract: The evaluation methods for biotreatment process and its effect during biopulping were reviewed. The changes of microstructure and chemical components of lignoncellulose material during biotreatment process could be studied by using traditional and modern instrumental analytical methods.
Keywords: biopulping; evaluation methods; chemical components
(责任编辑：王 岩)
有序介孔TiO2-SiO2复合材料的制备及在造纸上的应用研究进展
林会亮 周国伟 孟庆海
（山东轻工业学院制浆造纸工程省级重点学科，山东济南，250100）
摘 要：介孔材料是一类孔径分布在2～50 nm之间的多孔材料，具有比表面积大、孔隙率高、孔径分布窄、孔排列有序的特点。本文综述了近几年介孔TiO2-SiO2复合材料的合成、表征及在造纸上应用的最新进展及前景展望。
关键词：TiO2-SiO2；光催化；介孔材料；造纸
Progress of Preparation of Ordered Mesoporous TiO2-SiO2 and its Application in Papermaking
LIN Hui-liang ZHOU Guo-wei* MENG Qing-hai
(Shandong Key Lab of Pulp and Paper Engineering, Shandong Institute of Light Industry, Jinan, Shandong Province, 250100)
(E-mail:gwzhou@china.com.cn)
Abstract:Mesoporous material with pore size between 2～50 nm, high specific surface area, large pore volume and narrow pore size distribution, have considerable potential for wide use in catalysis and separation applications. The recent progress and application of ordered mesoporous Ti, O2-SiO2 in papermaking industry were reviewed.
Key words:TiO2-SiO2; photocatalysis; mesoporous materials; papermaking
(责任编辑：李大力)
纸浆中荧光的产生及消除
惠岚峰
（天津科技大学天津市制浆造纸重点实验室，天津，300222）
摘 要：介绍了荧光发生的机理，纸浆中荧光产生的原因及荧光对生产过程和最终产品的影响，并讨论了纸浆中荧光的消除方法。
关键词：荧光；荧光增白剂；二次纤维；臭氧；二氧化氯
Emergence and Removal of Fluorescence in Pulp
HUI Lan-feng
(1.Tianjin Key Lab of Pulp & Paper，Tianjin University of Science & Technology，Tianjin, 300222)
(E-mail:huipeak@163.com)
Abstract: Papermakers are paying more attention to fluorescence in pulp with the increasing use of recycled fibers in recent years. The fluorescence in pulp comes from fluorescence chromophores of native fiber and fluorescent whitening agents added in the pulp for whitening the paper initially. In this paper, the basic principles of fluorescence were outlined, the literature on the formation and characteristics of fluorescence in pulp，especially in recycled pulp was reviewed. The negative influence of fluorescence in pulp on papermaking process and end products was discussed. Finally, the methods of removing fluorescence from pulp including ozone, chlorine dioxide, peracetic acid, oxidoreductases/mediator system etc. were introduced.
Keywords: fluorescence; fluorescent whitening agent; recycled pulp; ozone; chlorine dioxide
(责任编辑：张桂兰)
流浆箱先进控制策略及解耦控制算法
汤 伟 王孟效 李明辉 薛会建
（陕西科技大学微机应用研究所，陕西咸阳，712081）
摘 要：以纸机车速为主线，简要介绍了流浆箱的发展状况；并针对气垫式流浆箱和水力式流浆箱，给出了行之有效的流浆箱控制方案和几种先进的解耦控制算法。
关键词：造纸机；气垫式流浆箱；水力式流浆箱；控制策略；解耦控制算法
The Advanced Control Strategies and Decoupling Algorighms of Headbox
TANG Wei* WANG Meng-xiao LI Ming-hui XUE Hui-jian
(Institute of Microcomputer Application and Development,Shannxi University of Science & Technology, Xianyang, Shannxi Province, 712081)
(E-mail:wtang906@163.com)
Abstract: Headbox is one of the key components of a paper machine. The structure, performance and control of the headbox are changed and improved continuously in order to keep pace with the increase of machine speed and the upgrade of paper quality. After introducing the development of headbox briefly, some effective control strategies are proposed and several advanced decoupling control algorithms are also presented mainly for air cushioned headbox and hydraulic headbox.
Keywords:paper machine; air cushioned headbox; hydraulic headbox; control strategy; decoupling control algorithms
(责任编辑：张桂兰) |
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