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马尾松纤维的力学性能研究
费本华1 张 波1，* 余 雁2 赵荣军1
（1.中国林业科学研究院木材工业研究所，北京，100091；2.国际竹藤网络中心，北京，100102）
摘 要：研究了人工林马尾松的纤维零距抗张强度、细胞壁的纵向弹性模量和硬度等力学指 标。结果表明：马尾松纤维的零距抗张强度介于413～631MPa之间，平均为513 MPa，从髓 向边材呈增大趋势，在同一年轮内晚材纤维强度显著大于早材；纤维细胞壁的纵向弹性模量和硬度在壁厚方向不一致，次生壁的弹性模量显著大于复合胞间层，两者之间的硬度差异不显著；成熟材次生壁纵向弹性模量和硬度均大于幼龄材，分别高出约40％和13％。
关键词：马尾松；纤维；零距抗张强度；纳米压痕；弹性模量；硬度
Mechanical Properties of Pinus Massoniana Fibers
FEI Ben-hua1 ZHANG Bo1，* YU Yan2 ZHAO Rong-jun1
(1.Chinese Academy of orestry, Beijing, 100091；
2.International Center for Bamboo and Rattan, Beijing, 100102)
(*E-mail:zhboe@yahool.com.cn)
Abstract: The tensile strength, modulus of elasticity(MOE) and hardness of Pinus massoniana fibers were determined by using zero-span tension and nano-indentation technique. It was shown that the average zero-span tensile strength of early wood fibers was 513MPa, ranging from 413 MPa to 631MPa.The mean strength of the earlywood fibers increased from the pith to the bark. The hardness of the compound middle lamella was almost as high as that of the secondary wall, but the MOE of the compound middle lamella was 50% lower than that of the secondary wall. There was about 40% increase in the average modulus of elasticity (12.91 to 17.89 MPa) and about 13% increase in the average hardness (0.40 to 0.46 GPa) of the late mature wood compared with the early juvenile wood of Pinus massoniana.
Key words：Pinus massoniana；fibers；fiber mechanics；zero-span； nanoindentation
（责任编辑：关 颖）
稻草皮层的SEM-EDXA研究（Ⅱ）
邱玉桂 陈春霞
(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：用SEM-EDXA法研究稻草叶鞘、叶片的超微结构及Si等矿质元素的分布。结果表明，叶鞘外表面皮层由颗粒物区和非颗粒物区交替排列而成；叶鞘外表面皮层主要含C、O、Si、Cl、K等元素，Si含量为18.57％，非颗粒区的Si含量为25.46％，明显高于颗粒区的含Si量。叶鞘内表面层的Si含量仅为0.58％。叶片有发达的叶脉系统；中脉中存在巨大的空腔；中脉的外周交替分布着中型和小型维管束；中脉内部细胞的结点上也存在着维管束。叶片上、下表面皮层的超微结构形态相似，均由气孔区和非气孔区交替排列而成；每个气孔的左右两侧均有3～4个颗粒物加强着；气孔区对应的皮下组织为叶肉组织；非气孔区对应的皮下组织为叶脉组织。叶片下表面皮层由O、Si、Cl、K和Ca等元素组成，Si含量较高，为22.87％；叶片上表面皮层由C、O、Si、Cl、K等元素组成，Si含量低,仅11.75％。叶片表面及表面上各种器官均布满翅形结构物，具有明显的特点。
关键词：稻草叶；超微结构；矿质元素；含Si量；叶脉；翅形物
Study on the Cuticle of Rice Straw Stem by Means of SEM-EDXA (Ⅱ)
QIU Yu-gui* CHEN Chun-xia
(State Key Lab of Pulp and Paper Engineering, South China University of Technology,
Guangzhou, Guangdong Province, 510640)
(*E-mail：lcygqiu@scut.edu.cn)
Abstract： The ultra-structure of the cuticle and distribution of the mineral elements in the cuticle of the leaf and leaf sheath of the rice straw were studied by means of SEM-EDXA. The results showed that, the outer surface layer of the cuticle of the leaf sheath consists of two structures, i.e. the granular and the non-granular zones which are arranged alternatively. The cuticle of outer surface of the leaf sheath mainly contains five elements i.e. C, O, Si, Cl and K. The Si content in non-granular zone is obviously higher than that in granular zone. However, the Si content in the inner surface layer of the leaf sheath is very low just 0.58%. There exists developed rib system with large midrib on center of the transverse section of the leaf. Vascular bundles are distributed around the midrib, on the both sides of the midrib and on each crunode of inner cells. Both sides of the surface layers of the leaf show the similar ultra-structure, which are formed by stomata regions and non-stomata regions alternatively. Each stoma is reinforced by 6～8 granules. Stomata regions are corresponding to mesophyll tissue, while non-stomata regions are corresponding to vein tissue. The cuticle of underside surface layer of the leaf is composed mainly of elements of O, Si, Cl, K and Ca, the silicon content is 22.78%, while the upside layer is mainly formed by C, O, Si, Cl, K, the silicon content is obviously lower than that of underside surface layer. It is obvious that the surface layer of the leaf with the organs on it is full of winged structures.
Key words：the cuticle of rice leaf；ultra-structure；mineral elements；silicon content；rib；winged structure
(责任编辑：常 青)
尾巨桉木片水抽提物成分的GC/MS分析
彭万喜1,2 李凯夫2，* 范智才2
(1.中南林业科技大学工业学院，湖南长沙，410004；2.华南农业大学林学院，广东广州，510640)
摘 要：采用冷水浸渍法从新鲜尾巨桉木片中提取有效成分，经浓缩、干燥、苯-甲醇溶解后，再用气相色谱/质谱法(GC/MS)联机分析技术，用色谱峰面积归一化法计算各组分的相对含量。共分离出35个峰，结合文献调研，鉴定出12个化合物，占总峰面积的53.67％。主要成分为2，6，10，15，19，23-六甲基-鲨烯(18.04%)、2，4’，5-三甲基二苯甲烷(7.68%)、二十五(碳)烷(5.93%)、2，6，10，14-四甲基-十五烷(5.10%)、十九(碳)烷(4.95%)、2，6，10，14-四甲基-十六烷(3.97%)、5，6-二氢5，6-二甲基苯-邻二氮(杂)萘(2.80%)、7，3’，4’-三甲氧基-槲皮素(1.53%)、6，10，14-三甲基-2-十五烷(1.02%)等。
关键词：气相色谱；质谱；水抽提物；尾巨桉
Determination of Chemical Components of Cold Water Extractives of E. Urograndis by GC/MS
PENG Wan-xi1,2 LI Kai-fu2，* FAN Zhi-cai2
(School of Industry, Central South University of Forestry & Technology, Changsha, Hu''nan Province,410004；2. School of Forestry, South China Agriculture University, Guangzhou, Guangdong Province, 510640)
(E-mail：kfli@scau.edu.cn)
Abstract：The chemical components of cold water extractives of E. Urograndis were separated and identified by GC/MS after enriching and dissolving in benzene-methanol. Relative content of each component was determined by area normalization. 12 compounds representing 53.67% of the extractives were identified. The most abundant constituents were 2,6,10,15,19,23-hexamethyl-2,6,10,14,18,22,-tetracosahexaen（18.04%）, 2,4'',5-trimethyldiphenylmethane （7.68%）, pentacosane（5.93%）, pentadecane, 2,6,10,14-tetramethyl- (cas) （5.10%）, nonadecane（4.95%）, hexadecane, 2,6,10,14-tetramethyl- (cas) （3.97%）, 5,6-dihydro-5,6-dimethylbenzo［c］cinnoline（2.80%）, quercetin 7,3'',4''-trimethoxy（1.53%）, 2-pentadecanone, 6,10,14-trimethyl-（1.02%） and so on.
Key words：gas chromatography；mass spectrometry；extractives in water
（责任编辑：王 岩）
三倍体毛白杨KP法蒸煮中木素结构的变化
刘 玉1,2,3 詹怀宇2 陈嘉川1 Keiichi Koda3,4 Dimitris Argyropoulos3
(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. 华南理工大学制浆造纸工程国家重点实验室，广东广州，510640；
3.美国北卡罗来纳州立大学木材与造纸科学系， 罗利，NC 27695-8005, USA；
4. 日本北海道大学农业研究生院，札幌，北海道060-8589，日本)
摘 要：以三倍体毛白杨为研究对象，进行了常规硫酸盐法蒸煮。采用酶-弱酸解两段法分别从原料和KP纸浆中分离出原料木素和纸浆残余木素。采用酸析法从KP蒸煮黑液中分离出溶出木素样品，经过弱酸水解得到纯木素试样。通过凝胶渗透色谱分析（GPC），对所有试样分别进行了分子质量的检测，得出各种木素样品的分子质量及其分布，分析了木素溶出过程中的分子质量的变化。通过磷谱核磁共振31P-NMR技术得出木素结构谱图，对原料木素、纸浆残余木素和黑液溶出木素结构中各官能团进行了定量分析对比，研究了木素结构在KP蒸煮过程中的变化规律。
关键词：三倍体毛白杨； KP；木素结构； 木素分子质量
The Change of Lignin Structure of the Triploid of Polulus Tomentosa during Kraft Pulping
LIU Yu1,2,3，* ZHAN Huai-yu2 CHEN Jia-chuan1 Keiichi Koda3,4 Dimitris Argyropoulos3
(1. Shandong Key Lab of Pulp and Paper Engineering, Shandong Institute of Light Industry, Ji''nan, Shandong Province, 250100; 2. State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640; 3. Wood and Paper Science Department, North Carolina State University, Raleigh, NC 27695-8005, USA;
4. Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan)
(*E-mail：leoliuyu@163.com)
Abstract: The Chinese northern fast-growing hardwood-Triploid of Polulus Tomentosa was used as the raw material in this study. Conventional kraft pulping was carried out. The two-stage method was used to prepare the lignin from raw material and the lignin from the pulp. The acid-precipitating method was used to separate the dissolved lignin from the black liquor and the crude lignin was further purified by mild-acidic hydrolysis. The lignin samples were studied with GPC, and the changes of molecular weight during KP were investigated and compared. The lignin 31P-NMR spectra of different lignin samples were obtained and the functional groups of the lignin were quantitatively analyzed and compared in order to discover the change of lignin structures during kraft pulping.
Key words：the triploid of Polulus Tomentosa；KP；31P-NMR；lignin structural changes；lignin molecular weight
(责任编辑：赵旸宇)
蓝花楹的化学组成及其硫酸盐法制浆特性
赵志法1 谢益民2，* 雷晓春3 李昭成2
（1.青岛出入境检验检疫局，山东青岛，266002；
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；
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：对厄瓜多尔6年生蓝花楹的化学成分进行了分析。制浆实验表明，在硫化度25％、活性碱用量18%、165℃下保温90 min的硫酸盐法蒸煮条件下，可以得到卡伯值为18.5、细浆得率42％和裂断长为7.4 km的适于制挂面箱纸板及包装用牛皮箱纸板的KP浆。经硝基苯氧化及GC分析，发现其木素为S-G型木素，S与G物质的量比为0.801，脱木素性能比一般的阔叶木差，属于比较难蒸煮的木材。
关键词：蓝花楹；硫酸盐法制浆；硝基苯氧化
Kraft Pulping Performance of Jacaranda Copaia Wood
ZHAO Zhi-fa1 XIE Yi-min2，* LEI Xiao-chun2 LI Zhao-cheng2
(1.Qingdao Entry-exit Inspection and Quarantine Bureau,Qingdao,Shandong Province,266002;
2. Shandong Key Lab of Pulp and Paper Engineering, Shandong Institute of Light Industry, Ji''nan, Shandong Province, 250100; 3. State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640)
(*E-mail：ppymxie@sdili.edu.cn)
Abstract: Six years old Jacaranda copaia wood was used as raw material for kraft pulping in lab. Its chemical composition was also analyzed. The results showed that this tropical species was difficult to be digested with kraft process. The optimum condition of kraft pulping was as follows: sulfidity 25%, alkali sodium charge 18%, 165℃ for 90min. The pulp yield was 42%, the kappa number was 18.5, and the breaking length of the pulp was 7.4 km. The S/G value of the nitrobenzene oxidized lignin of Jacaranda copaia was 0.801, it indicated that Jacaranda copaia lignin contains more condensed structure and is difficult to be decomposed in kraft process.
Key words: Jacaranda copaia；kraft pulping；nitrobenzene oxidation
（责任编辑：于 红）
光叶楮白皮生物脱胶制浆及其机理研究
白延坤 刘秉钺 何连芳 黄 娜
（大连轻工业学院，辽宁大连，116034）
摘 要：对影响光叶楮白皮生物脱胶制浆的主要因素及脱胶酶特性进行了研究。结果表明，生物脱胶制浆的最优工艺条件为：初始pH值7，温度30℃，液比1∶15～1∶25，接种量3%；加入氮源助剂能够显著提高成浆效果，且以用量为1.5%～2.5% 的尿素为佳。最优条件下的制浆结果为：得率70.0%，高锰酸钾值14.6，白度43.2%ISO，成浆时间94 h，废液pH值4.0，CODCr值为0.337 t/t浆。脱胶酶活力分析结果表明：发酵初期，酶活力都随时间延长而升高，发酵至36 h，果胶酶活力达到峰值，木聚糖酶活力在发酵至60 h达到峰值，峰值过后，2种酶的活力随时间延长逐渐降低，纤维素酶活力在整个周期内缓慢增加，没有峰值出现。
关键词：光叶楮白皮；生物脱胶；酶活力
Bio-Degumming Pulping of Guangyechu White Bast and Its Mechanism
BAI Yan-kun* LIU Bing-yue HE Lian-fang HUANG Na
(Dalian Institute of Light Industry, Dalian, Liaoning Province, 116034)
(*E-mail：baiyankun@126.com)
Abstract: The main factors affecting bio-degumming for guangyechu white bast pulping and the characteristics of degummase were studied in this paper. The optimum conditions for degumming pulping are initial pH value 7, temperature 30℃, ratio of material to liquor 1∶15～1∶25, amount of inoculum 3%; 1.5%～2.5% charge of urea added into the liquor can obviously improve the effect of pulping. The results are as follows: pulp yield 70.02%, KMnO4 value 14.56, brightness of the pulp 43.2%ISO, pulping period 94h, pH value of the spent liquor 4.05, CODCr 0.337t/t(pulp). The analysis of enzyme activity in biological degumming process showed that: the enzymes'' activity all increase with the time increasing in initial fermentation stage, the pectinase activity reaches maximal level at the time of 36h, the xylanase activity reaches maximal level at the time of 60 h, these two enzymes'' activity gradually decreases afterward. The cellulase activity increases slowly in the whole period and has no maximal level appears.
Key words：guangyechu white bast；bio-degumming；enzyme activity
(责任编辑：李大力)
油棕榈果球丝烧碱-蒽醌法蒸煮脱木质素机理的研究
曹云峰1，2 冯 奇1 张凤山2 李忠正1 李建华2
（1.南京林业大学，江苏南京，210037；2.华泰集团有限公司，山东广饶，257335）
摘 要：对马来西亚的油棕榈果球丝烧碱-蒽醌法蒸煮工艺及其蒸煮脱木质素机理进行了研究，结果表明：在所选蒸煮工艺范围内，影响油棕榈果球丝烧碱-蒽醌法蒸煮脱木质素率、纸浆得率和黑液残碱的主要因素是蒸煮最高温度，其次为用碱量，影响最小的为保温时间。而其脱木质素可分为初始脱木质素、主要脱木质素和残余脱木质素3个阶段；即蒸煮温度升至100℃时，为初始脱木质素阶段，木质素脱除率2.10%；当蒸煮温度从100℃升至160℃并保温30 min，此阶段为主要脱木质素阶段，此阶段脱除81.0%的木质素；当在160 ℃保温从30 min至120 min时，属残余脱木质素阶段，此阶段木质素的脱除率为12.1%。
关键词：油棕榈；烧碱-蒽醌法蒸煮；脱木质素
Delignification Mechanism of Soda-AQ Cooking of the Thread of Oil-Palm Fruit
CAO Yun-feng1,2，* FENG Qi1 ZHANG Feng-shan2 LI Zhong-zheng1 LI Jian-hua2
(1. Nanjing Forestry University, Nanjing, Jiangsu Province, 210037;
2. Huatai Co. Ltd, Guangrao, Shandong Province, 257335)
(*E-mail：yunfcao@163.com)
Abstract: The orthogonal method was used to study the soda-AQ pulping of the thread of oil-palm fruit from Malaysia. The results indicated the maximum temperature was the most significant among the three factors , the subordination factor was the NaOH dosage and the least factor was the time at the maximum temperature. Concerning the delignification mechanism, the results indicated that 2.1% of the lignin in the thread of oil-palm fruit is removed when the cooking temperature rises to 100℃, 81.0% of the lignin is removed in 30 min at maximum temperature 160℃, another 12.1% of the lignin is removed at maximum temperature 160℃ when the retention time from 30 to 120 min. The lignin removal is divided into three distinct phases: initial delignification phase, bulk delignification phase and residual delignification phase.
Key words：oil-palm；soda-AQ pulping；delignification
(责任编辑：马 忻)
贝壳状革耳菌诱变提高产漆酶能力及其生物漂白的研究
莫佳琳 付时雨 詹怀宇
（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：本研究从贝壳状革耳菌（Panus conchatus，是一株具有选择性降解木素的白腐菌)菌株出发，通过原生质体融合和紫外诱变技术处理，获得产漆酶酶活较高的诱变融合菌株，诱变株28-7的漆酶酶活高峰达17290 IU/L，比原始菌的酶活高峰2318 IU/L提高约7.5倍。诱变菌株分泌的漆酶预处理荻苇浆、麦草浆和芦苇浆，LQP浆和OLQP浆的白度较未经处理的高，卡伯值下降，黏度变化不大。经过漆酶/介体生物处理可提高纸浆的可漂性，对后续漂白有促进作用。实验结果初步证明，原生质体融合和紫外诱变技术可以作为改良白腐菌Panus conchatus的手段。
关键词：漆酶；原生质体融合；紫外诱变；酶活；生物漂白
Improving Laccase Activity of Panus Conchatus by Mutagenesis and Used for Biobleaching
MO Jia-lin* FU Shi-yu ZHAN Huai-yu
(State Key Lab of Pulp and Paper Engineering, South China University of Technology,
Guangzhou, Guangdong Province, 510640)
(*E-mail：maggiemo@163.com)
Abstract: Panus conchatus, a kind of white rot fungi, produces laccase with high yield, which degrades lignin selectively. Laccase has been used widely in many fields and it has an interest in enzyme engineering and environmental protection. However, the most important thing for us was to obtain the strains with higher laccase activity. The purpose of the study was to screen the strains with higher laccase activity, and then, the pulp was biobleached with these mutant strains. In this paper, the mutant strains with higher laccase activity were obtained by protoplast fusion and ultraviolet mutagenesis. 19 mutant strains with higher laccase activity were obtained by screening and the highest laccase activity was 17290 IU/L, which was 7.5 times higher than that of the primary strain. In the experiment, three kinds of pulp were treated by laccase producing by mutant strains. Another bleaching sequence was Laccase/mediator biobleaching, i.e. Laccase/NHA treatment (L), oxygen treatment (O), chelating agent treatment (Q) and hydrogen peroxide bleaching(P), the physical properties of the bleached pulp were improved in a certain extent. The brightness of LQP pulp and OLQP pulp was higher, Kappa value was lower and viscosity had a little decrease compared with the unbleaching pulp. The pulp bleaching performance was improved comparatively after treatment by laccase/mediator system. It was proved that protoplast fusion and ultraviolet mutagenesis are the effective methods to improve laccase activity of Panus conchatus, and the results of our work are significant for the potential application of laccase.
Key words：laccase；protoplast fusion；ultraviolet mutagenesis；activity；biobleaching
（责任编辑：孙秋菊)
Fenton和光-Fenton反应处理二次纤维制浆废水的研究
徐美娟 王启山 刘善培 吴立波 张 颖 (南开大学环境科学与工程学院，天津，300071)
摘 要：采用高效节能的Fenton和光-Fenton技术对二次纤维制浆废水的处理进行了对比研究。结果表明，Fenton和光-Fenton技术处理该废水非常有效，在最佳实验条件下(Feton试剂最佳物质的量比为10∶1、H2O2用量1678.75 mg/L、温度为30℃、Fenton和光-Fenton反应体系的最佳pH值分别为2.8和3.0），经过90 min的反应，可使二次纤维制浆废水的最大吸光度降低约92%和99%，并可去除87%和95%的CODCr。减小Fenton试剂比可加快有机物的降解速率；增加H2O2用量可以增加有机物的降解程度；根据废水CODCr值计算得到的H2O2理论投加量可以满足降解废水中有机物的需求；光照可提高最佳pH值，显著提高较高pH值体系的有机物降解速率和废水处理效果；光源和光照强度不同，有机物的降解程度不同。
关键词：Fenton反应；光-Fenton 反应；制浆造纸废水；废水处理
Treatment of Wastepaper Based Pulping Effluents by Fenton and Photo-Fenton Technologies
XU Mei-juan* WANG Qi-shan LIU Shan-pei WU Li-bo ZHANG Ying
（College of Environmental Science and Engineering, Nankai University, Tianjin, 300071） (*E-mail：xmj80@126.com)
Abstract: Pulp and papermaking effluents contain a lot of harmful, toxic and persistent organic pollutants which are very difficult to be degraded by conventional wastewater treatment processes, so in this paper efficient and economical Fenton and photo-Fenton technologies were used to degrade these organic contaminants of wastepaper based pulping effluent. From this study, the Fenton and photo-Fenton technologies were proved to be highly effective for the treatment of such wastewater, and the optimal conditions are the following:［H2O2］:［Fe(Ⅱ)］=10∶1,［H2O2］is theoretical demand, pH=2.8 and 3.0 respectively for Fenton and photo-Fenton reaction, t=30℃. Up to 98% maximum light absorbance and 95% CODCr can be decreased after 90 min in photo-Fenton reaction, while 92% and 87% in Fenton reaction. From this study, it was found that irradiation can result in an increase of optimum pH,degradation rate and treatment efficiency; decreasing the Fenton reagent ratio can lead to larger A290 decrease; the H2O2 dose controls the overall efficiency of A290 decrease while the theoretical demand of H2O2 is enough to ensure the A290 decrease; the treatment efficiency will be different when different light sources and (or) intensity of radiation are used.
Key words：Fenton reaction；photo-Fenton reaction； pulp and papermaking effluents； wastewater treatment
（责任编辑：田风洲）
具有柔软作用的阳离子双酰胺类施胶剂的制备及应用
孔 涛 李小瑞 杨晓武
（陕西科技大学化学与化工学院， 陕西咸阳， 712081）
摘 要：叙述了一种具有柔软作用的阳离子双酰胺类施胶剂的制备及应用，讨论了多种因素对施胶度及柔软性的影响。牛油和二乙烯三胺（DETA）反应合成一种施胶剂中间体，用硫酸二甲酯将中间体季铵化，得到具有柔软作用的阳离子双酰胺类施胶剂，改变硫酸二甲酯的用量，得到一系列不同阳离子度的施胶剂。以木浆作应用实验，得出施胶剂应用的最佳条件：阳离子度0.3，施胶剂用量0.75%，Al2(SO4)3用量0.5%，熟化时间30 min；在此条件下施胶，纸张的施胶度为34 s，柔软度为0.689 mN（空白样为1.098 mN）。
关键词：双酰胺；柔软性；阳离子施胶剂；季铵盐
Preparation and Application of Cationic Diamide Sizing Agent with Softening Function
KONG Tao* LI Xiao-rui YANG Xiao-wu
(Shaanxi University of Science and Technology, Xianyang, Shaanxi Province, 712081)
(*E-mail：contall@163.com)
Abstract: This paper deals with the preparation and application of a cationic diamide sizing agent with softening function and discusses some factors affecting the sizing degree and softness. The sizing agent intermediate prepared by butter and Diethylenetriamine(DETA) was reacted with dimethyl sulfate to produce a kind of quaternary ammonium salt. Various cationic degree sizing agent could be prepared by changing the dosage of dimethyl sulfate. The performance of the sizing agent was tested in the wood pulp. According to the application results, the optimum applied conditions are as follows: cationic degree 0.3, dosage of sizing agent 0.75%, dosage of aluminium sulfate 0.5%, aging time 30 min. In the optimum condition, the sizing degree of the paper is 34s and the softness of the paper is 0.689 mN (the softness of the control sample is 1.098 mN).
Key words：diamide；softness；cationic sizing agent；quaternary ammonium salt
（责任编辑：梁 川）
桉木浆细小纤维表面化学特性
刘丽莎 戴红旗 王 燕 周如金 王莺莺
(南京林业大学化学工程学院，江苏南京，210037)
摘 要：以漂白KP桉木浆中的原生细小纤维（P200）和长纤维(R30)打浆剥落的细小纤维碎片（P′200）为研究对象，发现它们在物理形态与表面化学性能方面存在明显差异。研究结果表明：细小纤维中戊聚糖含量P200为26.16%，P′200为20.06%；羧基含量P200为6.386 mmol/100 g绝干浆，P′200为5.484 mmol/100 g绝干浆；灰分含量P200是P′200的3.6倍；比表面积P200为14.36 m2/g绝干浆，P′200为91.66 m2/g绝干浆。细小纤维比原浆有更大的保水值，且细小纤维的保水值随着系统pH值的升高而增大；P′200比P200吸附有更多的水和更高的阳离子需求量。纸浆系统电导率的升高对P200的保水值基本上没有影响，对原浆和P′200的水化程度有一定的压缩作用，且都呈缓慢下降趋势。
关键词：原生细小纤维；纤维碎片；表面化学特性
Study on the Surface Chemical Characteristics of the Fines of Eucalyptus Pulp
LIU Li-sha DAI Hong-qi* WANG Yan ZHOU Ru-jin WANG Ying-ying
(Nanjing Forestry University, Nanjing, Jiangsu Province, 210037)
(*E-mail：daihq@njfu.com.cn)
Abstract: In this paper, both the original fines (P200) of BEKP and the fragment (P′200) of its long fibers (R30) which came from beating process were studied. There were some differences in their morphology and surface chemical characteristics. It was shown that the pentosan content of P200 is 26.16%, P′200 only 20.06%. The contents of carboxyl are 6.386mmmol/100g and 5.484 mmol/100g for P200 and P′200 respectively. The ash content of P200 is 3.6 times of P′200. And the specific area of P′200 is 6.4 times of P200. The water retention value (WRV) of the fines is higher than that of original pulp, and the WRV of the fines increases with the increasing of pH value. P′200 absorbs more water and demands more cationic than P200 does. The increase of conductivity of wet-end system has no effect on WRV of P200, and only little effect on the WRV of the original pulp and P′200. The WRV of original pulp and P′200 decrease slowly.
Key words：original fines；fragment of long fibers；surface chemical characteristics
（责任编辑：房宝伦）
壳聚糖与纤维的交互作用对手抄片性能的影响
付丽红1 程惊秋2
（1.山东轻工业学院皮革化学与工程省级重点学科，山东济南，250353；
2． 四川大学华西医院卫生部移植工程与移植免疫重点实验室，四川成都，610041）
摘 要：通过手抄片的物理性能测定、红外光谱(IR)和示差扫描量热法 ( DSC)分析，研究了手抄片中壳聚糖与纤维间的交互作用，并用X射线衍射法（XRD）测定纤维的结晶度。结果表明：壳聚糖与纤维间存在较强的交互作用，主要为大量的氢键、离子键和少量的共价键；随壳聚糖用量的增加，手抄片的物理性能指标出现不同的变化趋势；壳聚糖的加入使纤维的玻璃化转变温度（Tg）升高、结晶度和热变性能量降低；用Tg的变化反映壳聚糖与纤维间的结合、用结晶度和热变性能量的变化反映纤维本身的强度以便判断影响手抄片强度性能的内在因素；将湿强度与玻璃化转变温度相结合，可以推断离子键和氢键对分子间结合的影响。
关键词：壳聚糖；纤维；交互作用；物理性能；内在影响因素
Effect of Interaction between Chitosan and Cellulose on the Paper Property
FU Li-hong1，* CHENG Jing-qiu2
(1. Shandong Key Lab of Leather Chemistry and Engineering, Shandong Institute of Light Industry, Ji''nan, Shandong Province, 250100; 2. Division of Transplant Immunology Key Laboratory of Transpl ant Engineering and Immunology of Ministry of Health,
West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610041)
(*E-mail：flh12@sohu.com)
Abstract: Interaction between cellulose and chitosan molecules in the paper was studied by investigating mechanical properties of the paper and infrared spectrum (IR) and differential scanning calorimetric analysis (DSC) of the paper. The crystallinity of cellulose was determined by using X-ray diffraction（XRD）. The results showed that there is strong interaction between chitosan and cellulose, a lot of hydrogen bonds，ionic bonds, and a few covalent bonds are present. The fol ding endurance and bursting strength of paper increased, but water absorbency, breaking length and tear index of the paper decrease as chitosan dosage increases. Glass-transition temperature（Tg）of the paper increases, but crystallinity and thermodenaturation energy of cellulose in the paper decrease when chitosan is added to the paper. It is easy to judge the internal factors affecting the mechanical properties of the paper. The changes of Tg, crystallinity and thermodenaturation energy of cellulose in the paper can indicate the combination between cellulose and chitosan, and the fiber length.
Key words： chitosan；cellulose；interaction；glass-transition temperature；mechanical properties of paper
（责任编辑：关 颖）
硼改性微粒硅溶胶的研制及应用
马金霞 彭毓秀 李忠正
（南京林业大学化学工程学院，江苏南京，210037）
摘 要：用硼化物对硅溶胶进行表面改性，最佳的改性方案是将硼化物与硅酸钠混合形成尾料，再将未碱化、未熟化的酸性硅溶胶滴加入尾料中，n(B)∶n(Si)=0.08～0.1，硼改性微粒硅溶胶体积分数约为5%，其助留助滤性能优良，与空白样相比可使浆料留着率提高2～3倍，留着率比进口的NP882提高约30%。硼改性制备的硅溶胶重现性好，性能稳定。
关键词：硅溶胶；硼改性；留着率；滤水性能
Preparation of the Boron Modified Silica Sol
MA Jin-xia*PENG Yu-xiu LI Zhong-zheng
(Nanjing Forestry University, Nanjing, Jiangsu Province, 210037)
(*E-mail：Maggiema1975@tom.com)
Abstract: In order to prepare a stable silica sol with high concentration, acidic silica sol was directly modified with the mixture of boride (B) and Na2SiO3. The optimum modification degree of the ratio boron to silica (B/Si) was between 0.08 and 0.1.The boron modified silica sol with about 5% concentration was obtained. The boron modified silica sol had excellent retention and drainage effect. The fines retention efficiency increased two or three times with using boron modified silica sol; its retention efficiency was 30% higher than that of the imported product NP 882. The effect of boron modified silica sol had good reproducibility. Also its stable time was more than one year.
Key words：silica sol；boron modification；retention；drainage
（责任编辑：王 岩）
纺织用纸线原纸的研究
党育红 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：分析了进口纸线原纸的纤维形态、组成及配比；测定了原纸的各项物理性能指标；
研究了在针叶木浆中配加棉浆、细菌纤维以及水溶性PVA纤维对纸张强度性能的影响。结果表明：当纤维配比为木浆纤维∶棉浆纤维∶细菌纤维∶水溶性纤维＝81∶10∶7∶2，且分散剂PEO用量0.07％，湿强剂PAE用量1.8％，CMC用量0.3％时，纸线原纸的主要物理性能为：干抗张指数71.10 N•m/g，湿抗张指数30.03 N•m/g，撕裂指数8.01 mN•m2/g，耐折度460次、伸长率2.46％。
关键词：纸线原纸；棉浆；细菌纤维；水溶性PVA纤维；强度
Study on Base Paper of Paper Yarn for Textile
DANG Yu-hong WANG Zhi-jie LI Hong-kui*
(Shaanxi University of Science and Technology, Xianyang, Shaanxi Province, 712081)
(*E-mail: lhk2003@vip.sina.com)
Abstract: The imported base paper of paper yarn was analyzed .The influence of the factors such as the ratio of plant fibers( softwood pulp and cotton pulp) to nonplant fibers(bacterial cellulose, watersoluble PVA fiber), sheet-making conditions, high molecular chemical additives on the properties of the base paper was studied. The results showed that high quality base paper is obtained with a furnish containing softwood pulp（75°SR）, cotton pulp (60°SR), bacterial cellulose（refining to 10000r by standard apparatus）, watersoluble fiber（refining to 3500r using PFI）, and with adding additives such as 0.07%PEO, 1.8%PAE, 0.3%CMC,etc. The furnish composition is 81% softwood pulp, 10% cotton pulp, 7% bacterial cellulose and 2%watersoluble fiber. The physical properties of the base paper achieve the same level of the imported ones.
Key words：base paper of paper yarn；cotton fiber；bacterial cellulose；water-soluble PVA fiber；strength
（责任编辑：常 青）
新型半纤维素衍生物的制备及其结构研究
任俊莉 孙润仓 刘传富 何北海
（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：以蔗渣提取的半纤维素为原料，在异相中通过季铵化反应制备了新型半纤维素衍生物。讨论了反应温度、时间、用碱量及阳离子试剂用量对半纤维素衍生物取代度的影响。红外光谱结果表明，改性半纤维素大分子链上具有阳离子基团，证实了半纤维素确实发生了季铵化反应。GPC检测结果表明，改性后半纤维素分子质量比未改性的半纤维素分子质量低，证明半纤维素在化学反应中发生了降解。
关键词：半纤维素；改性；取代度；结构
Preparation and Characterization of Novel Hemicellulosic Derivatives
REN Jun-li* SUN Run-cang LIU Chuan-fu HE Bei-hai
(State Key Lab of Pulp and Paper Engineering, South China University of Technology,
Guangzhou, Guangdong Province, 510640)
(*E-mail: waterlilyjinan@163.com)
Abstract: Novel Hemicellulosic derivatives were prepared using sugarcane bagasse hemicelluloses materials in heterogeneous system by quaterization. The effect of the conditions of reaction, including time, temperature, and the dosages of catalyst and cationic agent, on the degree of substitution was discussed in detail. The results of FT-IR showed that the cationic groups tie on the chain of hemicelluloses, which confirms the hemicelluloses is modified. The molecular weight of the modified hemicelluloses is lower than that of the native hemicelluloses, which is illustrated that the hemicellulose is degraded in the reaction.
Key words：hemicelluloses；modification；degree of substitution；structure
（责任编辑：赵旸宇）
原位复合法制备纤维素/磁性纳米复合材料的初步研究
唐爱民 张宏伟 陈 港 刘映尧
（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：以纤维素纤维为模板，采用原位复合方法制备磁性纳米复合纤维。对复合反应条件进行了初步研究，探讨了Fe2+浓度及反应温度、熟化时间、复合次数对复合反应的影响。研究表明适当提高Fe2+浓度及反应温度、增加复合次数和延长熟化时间有利于提高复合纤维的磁性粒子复合量，但过高的浓度和反应温度会导致粒子聚团。适宜的Fe2+浓度为0.054 mol/L，反应温度65℃，控制反应条件可进一步控制复合磁性粒子的尺寸；采用扫描电镜能谱（EDXA）、傅里叶变换红外光谱（FTIR）、超导量子磁强计（SQUID）等对复合纤维结构及性能进行表征，结果表明纤维素/磁性纳米复合材料具超顺磁性。
关键词：纤维素； 磁性纳米复合材料；原位复合；模板
Preparation of Cellulose/Magnetic Nano-Composites by in Situ Compounding
TANG Ai-min* ZHANG Hong-wei CHEN Gang LIU Ying-yao
(State Key Lab of Pulp and Paper Engineering,
South China University of Technology, Guangzhou, Guangdong Province, 510640)
(*E-mail:amtang@scut.edu.cn)
Abstract: Cellulose/magnetic nano-composites were prepared by in situ process using cellulose fibers as template. The influences of compounding conditions on the composition results were studied. The amount of the compounded magnetic particles depends on the composition conditions, such as Fe2+ concentration, temperature, aging time, and repeat cycles. The optimal Fe2+ concentration is 0.054 mol/L and the temperature is 65℃. The amount of ferrite particles compounded on the fibers increases, and size and shape of the ferrite are optimized through reaction conditions control. The structure and the properties of the composite fibers and ferrite particles obtained were investigated by means of SEMEDXA, FTIR, atomic adsorption spectrometry and superconducting quantum interference device (SQUID). The ferrite particles'' sizes are between 20～100 nm and the nano-composite cellulose fibers are super paramagnetic. The magnetic nano-composites prepared are useful in the field of magnetic recording, anti forge paper making and military application.
Key words：cellulose；magnetic；nano-composite in situ compounding; template
（责任编辑：于 红）
超声波降解壳聚糖制备纸用微囊的研究
潘高峰1,2 吕 健1 于 钢1
（1. 东北林业大学，黑龙江哈尔滨，150040；
2. 牡丹江恒丰纸业股份有限公司，黑龙江牡丹江，157013）
摘 要：通过超声波降解获得不同相对分子质量的壳聚糖，以其作为壁材进行包囊实验，考查了超声波降解壳聚糖机理及在成囊过程中微囊粒径分布规律，并且对成品微囊进行强度检测和使用实验，从而确定了制备纸用微囊所用壳聚糖的最佳超声波降解功率。
关键词：超声波；降解；壳聚糖；微囊
Application of Ultrasonic Degraded Chitosan to Prepare Microcapsule Used in Paper
PAN Gao-feng1,2 LV Jian1 YU Gang1，*
(1. Northeast Forestry University，Harbin，Heilongjiang Province，150040；
2.Mudanjiang Hengfeng Paper Co. Ltd，Mudanjiang，Heilongjiang Province，157013)
(*E-mail:lvjian_008@163.com)
Abstract: Chitosans with different molecular weight were obtained through ultrasonic degradation. The chitosans were used as the wall material to prepare microcapsule in the experiment. The mechanism of ultrasonic degradation of chitosan and the distribution of microcapsule''s size were investigated. Also the strength of the resultant microcapsule was examined and its application experiment was carried out. Consequently, the best ultrasonic power of degrading chitosan for preparing microcapsule used in paper was decided.
Key words：ultrasonic；degradation；chitosan；microcapsule
（责任编辑：马 忻）
纤维间剪切结合强度的一种测量方法
陶劲松 刘焕彬 闫东波 葛汉科 寇顺利 沈文浩 陈小泉
（华南理工大学制浆造纸工程国家重点实验室，广东广州，510641）
摘 要：以PAGE方程为基础，结合光散射系数测量技术，提出了一种测量纤维间剪切结合强度的新方法，并以针叶木为原料，研究了打浆和湿压对纤维剪切结合强度和结合面积的影响。实验结果表明，打浆对纤维键合结合强度没有影响，提高湿压对剪切结合强度有增大作用；提高打浆度和增大湿压对纸页抗张强度的提高主要是纤维相对结合面积增大的结果。
关键词：纤维；剪切结合强度；结合面积；打浆；湿压
A New Method for Determining Fiber-Fiber Shear Bond Strength
TAO Jin-song* LIU Huan-bin YAN Dong-bo GE Han-ke
KOU Shun-li SHEN Wen-hao CHEN Xiao-quan
(State Key Lab of Pulp and Paper Engineering, South China University of Technology,
Guangzhou, Guangdong Province, 510640)
(*Email:chinatjs@163.com)
Abstract: Based on the PAGE equation and with the aid of light scattering coefficient measuring technique, a new method for determining fiber-fiber shear bond strength was presented in this paper. The effect of refining and wet pressing on fiber-fiber shear bond strength and sheet relative bonded area (RBA) was investigated with bleached Canada kraft softwood pulp. The results showed refining has no effect on shear bond strength and wet pressing can improve shear bond strength slightly, the increase of tensile strength through refining and wet pressing is ascribed to the RBA increase.
Key words：fiber；shear bond strength；bonded area；refining；wet pressing
（责任编辑：李大力）
纸张毛细管半径测量的新方法
刘福平 齐晓 王安玲
（北京印刷学院，北京，102604）
摘 要：利用印刷过程中油墨渗透深度随印刷压力和印刷速度的变化关系，建立了纸张毛细管半径方程，用实验方法测量了印刷过程中油墨在纸张中的渗透深度，由印刷压力、印刷速度、渗透深度测量值实现了纸张毛细管半径的定量测量。
关键词：油墨渗透深度；印压时间；自由渗透；毛细管半径
A New Measuring Method of Capillary Radius of Paper
LIU Fu-ping* QI Xiao-kun WANG An-ling
(Beijing Institute of Graphic Communication, Beijing, 102600)
(*E-mail:fapingliu@bigc.edu.cn)
Abstract: An equation calculating capillary radius of paper was established based on the consideration of that the permeating depth of printing ink in the paper depends on the printing pressure and printing speed. By measuring the printing pressure, printing speed and the permeating depth of printing ink in porous papers realizes the measurement of the capillary radius of the paper.
Key words：permeating depths of printing ink；printing time；free permeation；capillary radius
（责任编辑：孙秋菊）
低脉冲浆泵的原理及其叶轮设计
胡庆喜 黄运贤 黄放辉 陈中豪
（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：研究了影响纸页成形的主要压力脉冲源——上浆泵产生压力脉冲的原因，揭示了低脉冲浆泵的结构机理，提供了一种设计低脉冲浆泵的三维设计方法。
关键词：压力脉冲；低脉冲浆泵；结构机理；三维造型
Low Pulse Mechanism of the LowPulse Pulp Pump and the 3D Design of Its Rotor
HU Qing-xi* HUANG Yun-xian HUANG Fang-hui CHEN Zhong-hao (National Engineering Research Center of Papermaking and Pollution Control,
South China University of Technology, GuangZhou,Guangdong Province, 510640)
(*E-mail:qxhu@scut.edu.cn)
Abstract: Pressure pulse from the conventional approach system deteriorates the paper formation, this paper discusses the causes of the pressure pulse, analyzes the low pulse mechanism of the low pulse pulp pump and presents a 3D design method for the low pulse pulp pump of approach system.
Key words：pressure pulse；low-pulse pulp pump；structure mechanism；3D design
（责任编辑：田风洲）
纸机干燥部通汽系统耦合问题的动态建模研究
周 强1 王曙光2 姜丽波1
（1.陕西科技大学电气学院，陕西咸阳，712081;2.西安邮电学院信控系，陕西西安，710061）
摘 要：针对纸机干燥部供汽通道间复杂关联作用造成的烘缸蒸汽压力稳态性差的问题，利用数学建模法精确地描述这种关联关系,并在动态解耦的基础上采用前馈-反馈的控制策略，实现多路通汽系统的压力控制。该系统在生产过程中表现出良好的控制效果,表明本文建立的数学模型精确，分析过程合理，解耦及控制方法有效。
关键词：烘缸蒸汽压力；关联关系；动态解耦；前馈-反馈控制
Dynamic Modelling Research on Coupling of Drying System of Paper Machine
ZHOU Qiang1，* WANG Shu-guang2 JIANG Li-bo1
(1. Shaanxi University of Science and Technology, Xianyang, Shaanxi Province,712081;
2. Xi''an Institute of Post and Telecommunication, Xi''an, Shaanxi Province, 710061)
（*E-mail:xjtzhou@126.com）
Abstract: Aiming at the low stability of vapour pressures of dryer cylinders caused by complicated associate relationship between supplying channels of drying system, this associate relationship is described accurately by mathematic modeling. Based on dynamic decoupling, pressure control of multichannel vapour supply is realized by using feedforward and feedback control strategy. The better running effect of control system indicates the modeling is accurate, the process analysis is reasonable, and the control strategy is effective.
Key words：vapour pressure of dryer cylinder；association；dynamic decoupling；feedforward and feedback control
（责任编辑：梁 川）
MES在造纸工业中的应用方案
李明辉 王孟效 胡南江
（陕西科技大学机电工程学院，陕西咸阳，712081）
摘 要：分析了造纸工业的特点及其对MES的需求，并针对造纸企业管理层与控制层信息传递的难题，采用西门子公司的MES软件SIMATIC IT，建立了造纸工业的生产模型，并提出了一种基于SIMATIC IT的造纸厂MES方案和网络结构图。真正实现了上层业务系统ERP和下层控制系统PCS的信息沟通，为造纸工业实现信息化提供了一种具有可操作性的方法。
关键词：MES；SIMATIC IT；制浆造纸；ERP
&n, bsp; Application of MES in Papermaking Industry
LI Ming-hui* WANG Meng-xiao HU Nan-jiang
(Shaanxi University of Science and Technology, Xianyang, Shaanxi Province, 712081)
(*E-mail:liminghui1972@126.com)
Abstract: In order to adapt to the continuous change of the market, this paper analyzed the features of papermaking industry as well as its requirement for the MES, and established a production model of the papermaking industry aiming at the difficulty of information transfer between the control and management layer by using the SIMATIC IT software of Siemens, then put forward a MES application method and network structure for papermaking industry, which realized the communication between the upper business system ERP and bottom control system PCS.
Key words：manufacturing execution system；Simatic IT；pulp and paper；enterprise resource planning
（责任编辑：房宝伦）
综 述
XPS、AFM和ToF-SIMS的工作原理及在植物纤维表面分析中的应用
雷晓春1 林 鹿1 李可成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. 加拿大新布朗斯克大学制浆造纸研究中心，加拿大）
摘 要：介绍了先进的表面分析仪器化学分析电子能谱（XPS）、原子力显微镜（AFM）、含飞行时间分析器的二次离子质谱仪（ToF-SIMS）的工作原理，回顾了近年来它们在植物纤维表面分析中的成功应用，综合利用XPS、AFM及ToF-SIMS方法，可分析和解决制浆造纸过程中的现象和问题。
关键词：XPS；AFM；ToFSIMS；原理；纤维表面
Fiber Surface Analysis with XPS, AFM, TofSIMS: Principle and Application
LEI Xiao-chun1,* LU Lin1 LI Ke-cheng2
(1. State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640;
2. Department Chemical Engineering and Limerick Pulp and Paper Center,
University of New Brunswick, Fredericton, NB, Canada)
(*E-mail: paperlxc@126.com)
Abstract: The working principles of several advanced surface analysis instrument including X-ray photoelectron spectroscopy（XPS）, atomic force microscopy (AFM) and time of flight secondary ion mass spectroscopy (ToF-SIMS) are introduced, their successful application in fiber surface analysis recent years is reviewed. They can be used and complement each other to analyze and solve the problems which appear in pulping and papermaking process.
Key words：X-ray photoelectron spectroscopy；atomic force microscopy；time of flight secondary ion mass spectroscopy；working principle；fiber surface
（责任编辑：马 忻）
纤维柔软度测量方法的研究进展
葛汉科 陶劲松 刘焕彬 闫东波
（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：综述纤维柔软度测量技术在国内外的研究进展，对纤维柔软度测量方法进行归类总结和评价，重点介绍定量测量方法中单根纤维的测量法。
关键词：纤维柔软度；测量；测量模型
Research Progress in Measurement Method of Pulp Fiber Flexibility
GE Han-ke* TAO Jin-song LIU Huan-bin YAN Dong-bo
(State Key Lab of Pulp and Paper Engineering, South China University of Technology,
Guangzhou, Guangdong Province, 510640)
(*E-mail:hanhanfeng2004@163.com)
Abstract: Fiber flexibility is an important fundamental property. In this paper, the research progress in measurement methods of pulp fiber flexibility at home and abroad is summarized; The measurement methods of the flexibility of pulp fiber are classified and evaluated. The quantitative measurement method of single fiber is particularly introduced.
Key words：fiber flexibility；measurement；measurement model
（责任编辑：房宝伦）
天然高分子对化学纤维涂覆改性的新方法
钱丽颖 刘文波 何北海
(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：介绍了采用天然高分子对化学纤维进行涂覆，从而改善化学纤维亲水性的方法。主要包括壳聚糖和海藻酸盐的溶胶凝胶法。壳聚糖和海藻酸盐分子链上都含有大量的羟基等亲水性基团，利用它们的溶解性质可将其均匀地涂覆在化学纤维表面，从而对化学纤维进行亲水化改性。
关键词：化学纤维；亲水化；天然高分子；涂覆
The New Methods of Chemical Fibers Modification by Coating Natural Polymers
QIAN Li-ying* LIU Wen-bo HE Bei-hai
(State Key Lab of Pulp and Paper Engineering, South China Universityof Technology,
Guangzhou, Guangdong Province, 510640)
（*E-mail:lyqian@scut.edu.cn）
Abstract: In this paper, the new methods of coating a layer of natural polymers onto chemical fibers to make them to be hydrophilic were introduced; it included sol-gel methods of chitosan and alginate. There are abundant hydrophilic groups such as hydroxyls in the molecular chains of chitosan and alginate. Chitosan and alginate can be coated uniformLy onto the chemical fibers by using their special dissolving properties, and then the hydrophobic surface of chemical fibers will be modified to be hydrophilic.
Key words：chemical fiber；hydrophilic；natural polymer；coating
（责任编辑：梁 川） |
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