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首页 >> 中国造纸杂志社 >> 中国造纸学报 >> 摘要 >> 《中国造纸学报》2010年第4期中英文摘要
木片浸渍程度数学建模
吕卫军1 曹春昱1 薛崇昀1 刘锡炳2 黎的非1 张 勇1
(1.中国制浆造纸研究院,北京,100020;2.赤天化纸业股份有限公司,贵州赤水,564700)
 
摘 要:在对木片成分进行合理划分和假设的基础上,建立了计算木片浸渍程度的数学模型。结果表明,木片浸渍程度数学模型计算结果和实际测定结果线性符合良好,可用以表达液体向木片内部浸渍的程度。木片浸渍程度数学模型中无体积项,计算过程不受木片形状的影响。
 
关键词:木片;浸渍程度;数学模型
中图分类号:TS721+.1;TP27    
文献标识码:A    
文章编号:1000-6842(2010)04-0001-05
 
 
Mathematical Modeling of Impregnation Degree of Wood Chips
LV Wei-jun1,* CAO Chun-yu1 XUE Chong-yun1 LIU Xi-bing2 LI Di-fei1 
ZHANG Yong1
 
(1. China National Pulp and Paper Research Institute, Beijing, 100020; 2. Chitianhua Paper Industry Joint Stock Co., Ltd., Chishui, Guizhou Province, 564700)
(*E-mail: lvweijun761005@163.com)
 
Abstract: A mathematical model was developed for evaluation of the degree of liquor impregnation into chips based on a reasonable classification of wood chips’ components. Impregnation experiments showed that the mathematical model can be successfully used in studying the degree of liquor impregnation into chips. Furthermore, there is no volume item in the mathematical model. Therefore, the shape of chips can’t be considered in calculation.
Key words:wood chips; impregnation degree; mathematical model
 
(责任编辑:陈丽卿)
 
木片浸渍程度数学模型的应用
吕卫军1 曹春昱1 薛崇昀1 刘锡炳2 黎的非1 张 勇1
(1.中国制浆造纸研究院,北京,100020;2.赤天化纸业股份有限公司,贵州赤水,564700)
 
摘 要:采用木片浸渍程度数学模型对木片厚度、预汽蒸和添加表面活性剂等对木片浸渍程度的影响进行评价。结果表明,木片浸渍程度数学模型可用以评价各因素对木片浸渍程度的影响,是评价木片浸渍程度的一个有效工具。
 
关键词:木片;浸渍程度;数学模型;评价
 
中图分类号:TS721+.1;TP27    
文献标识码:A    
文章编号:1000-6842(2010)04-0006-04
 
Application of the Impregnation Degree Mathematical Model of Wood Chips
LV Wei-jun1,* CAO Chun-yu1 XUE Chong-yun1 LIU Xi-bing2 LI Di-fei1 ZHANG Yong1
 
(1. China National Pulp and Paper Research Institute, Beijing, 100020; 2. Chitianhua Paper Industry Joint Stock Co., Ltd., Chishui, Guizhou Province, 564700)
(*E-mail: lvweijun761005@163.com)
 
Abstract: The effects of wood chip thickness, presteaming, and surfactant application on impregnation degree were evaluated utilizing impregnation degree mathematical model. Results indicated that the new impregnation degree mathematical model of wood chips is a useful tool for impregnation degree evaluation and can be used to evaluate the effects of various factors on impregnation.
Key words:wood chips; impregnation degree; mathematical model
 
(责任编辑:陈丽卿)
 
 
楸树枝桠材硫酸盐法制浆的研究
王军辉1 张红杰2,* 石淑兰2 胡惠仁2 翟文继3 王秋霞3
(1.中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京,100091;2.天津科技大学,天津市制浆造纸重点实验室,天津,300457;3.河南省南阳市林业科学研究所,河南南阳,473015)
 
摘 要:对楸树3个无性系的两类径级枝桠材的硫酸盐化学法制浆及造纸性能进行了研究。研究结果表明:粗、细枝桠材硫酸盐法蒸煮最佳用碱量分别为21%和22%(以Na2O计)。在此条件下蒸煮,可获得卡伯值为21、纸浆得率分别为41%和34%的未漂化学浆。在相同的蒸煮工艺条件下,两类径级的楸树枝桠材硫酸盐法制浆性能表现出明显的差异。楸树3个无性系枝桠材硫酸盐法制浆性能差别不十分明显,在相同蒸煮条件下所得纸浆的卡伯值、纸浆得率和筛渣率相近。8401枝桠材硫酸盐浆相对较难漂白,8402和金丝楸硫酸盐浆的可漂性相对较好。
 
关键词:楸树;无性系;硫酸盐法;制浆造纸
中图分类号:TS743+.1;TS721+.1    
文献标识码:A    
文章编号:1000-6842(2010)04-0010-04
 
 
The Characteristics of Kraft Pulping of the Lop Woods of Catalpa bungei C. A. Mey.
WANG Jun-hui1 ZHANG Hong-jie2,* SHI Shu-lan2 HU Hui-ren2 ZHAI Wen-ji3
WANG Qiu-xia3
 
(1. Research Institute of Forestry, Chinese Academy of Forestry, Key Lab of Tree Breeding and Cultivation, State Forestry Administration,  Beijing, 100091; 2. Tianjin Key Lab of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457; 3. Nanyang Forestry Research Institute, Nanyang, He’nan Province, 473015)
(*E-mail: hongjiezhang@tust.edu.cn)
 
Abstract: In this paper, the characteristics of kraft pulping and papermaking of the lop woods of three different clones Catalpa bungei C. A. Mey. with two diameter grades were studied. The results showed that the optimum alkali dosages for the lop wood with bigger diameter and smaller diameter are 21% and 22%, respectively. Under this cooking conditions, the unbleached kraft pulps, with kappa number of 21 and pulp yields of 41% and 34% respectively, can be obtained. With the same cooking conditions, there are obvious differences of pulping characteristics for the lop woods with two different diameter grades; however, there are no big differences in kappa number, pulp yield and reject ratio for different clones of Catalpa bungei C. A. Mey.. It is relatively harder to bleach the lop wood of 8401, while the bleachabilities of 8402 and Golden Catalpa bungei C. A. Mey. lop woods are better.
Key words:Catalpa bungei C. A. Mey.; clones; kraft pulping; pulping and papermaking
 
(责任编辑:常 青)
 
 
 
不同方法预提取玉米秆半纤维素及其对后续制浆漂白的影响
程合丽 詹怀宇* 李兵云 付时雨
(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:分别采用KOH和NaOH溶液在4种条件下
对玉米秆中半纤维素进行了预提取,利用离子色谱检测了提取液中半纤维素的糖类组分及含量。剩余原料用NaOH-AQ法制浆并将浆料进行漂白。结果表明,碱法提取玉米秆半纤维素效果显著,在提取温度为75℃,提取时间为2 h,KOH提取液浓度为1.5 mol/L时,半纤维素提取率可达99%。碱法水解之前以55℃热水处理对半纤维素的溶出并无显著作用。在温度75℃、提取时间2 h时,相同OH-浓度的KOH溶液对半纤维素的提取率比NaOH溶液高20.5%。制浆漂白结果表明,预提取可使浆料卡伯值下降,显著提高未漂浆的白度,各提取条件下NaOH-AQ浆的得率无明显差别,均比未处理的NaOH-AQ浆得率下降10%左右。无论是未漂浆还是漂白浆,碱法预提取均可使浆料撕裂指数显著提高,但其他物理强度有所降低。
 
关键词:玉米秆;半纤维素;离子色谱;制浆;漂白
 
中图分类号:TS74    
文献标识码:A    
文章编号:1000-6842(2010)04-0014-05
 
Comparative Study of Corn Stover Hemicellulose Pre-extraction Methods and Their Effects on Subsequent Pulping and Bleaching
CHENG He-li ZHAN Huai-yu* LI Bing-yun FU Shi-yu
(State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640)
 
(*E-mail: pphyzhan@scut.edu.cn)
 
Abstract: Potassium hydroxide (KOH) and sodium hydroxide (NaOH) were used for pre-extraction of corn stover hemicellulose under four conditions, the composition of the hemicellulose polysaccharides in the extracts and their corresponding contents were analyzed by ion chromatography. After pre-extraction, the residues were experienced NaOH-AQ pulping and QP bleaching. Results indicated that alkaline extraction had significant effect on corn stover hemicellulse extraction, when extraction temperature was 75℃, extraction time was 2 h and the extraction liquor was 1.5 mol/L KOH, extraction yield of hemicellulose reached 99%. 55℃ hot water treatment before alkali hydrolysis had little effect on hemicellulose dissolving. When extraction temperature was 75℃ and extraction time was 2 h, yield of hemicelluose extracted with KOH was 20.5% higher than that with NaOH at the same OH- concentration. Results of pulping and bleaching experiments of the extracted residues showed that Kappa number of the pulp decreased and brightness of the unbleached pulp was much higher compared with the pulp from the raw materials without extraction, the yields of NaOH-AQ pulps were almost the same when different extraction methods were used, about 10% lower than that of the pulp from material without extraction. Tear index of both bleached and unbleached pulp from the extracted material increased greatly, while other physical properties such as density, breaking length and burst index decreased.
 
Key words:corn stover; hemicellulose; ion chromatography; pulping; bleaching
 
(责任编辑:郭彩云)
 
 
离子液体中微波辐射合成纤维素丙烯酰胺接枝共聚物
张佳珺 林春香 詹怀宇* 付时雨
(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:以离子液体为反应介质,丙烯酰胺为单体,在不加任何引发剂的情况下,用微波辐射代替常规的加热方式,在均相条件下快速合成了纤维素与丙烯酰胺的接枝共聚物。研究了影响接枝效果的各种因素(单体及交联剂的用量,微波强度以及反应时间等),并利用红外光谱(FT-IR)、扫描电镜(SEM)、热重分析(TGA)等手段对其结构及表面形态进行表征。结果表明,通过微波辐射,纤维素在离子液体中1 min便可完成接枝反应,与常规加热时间(0.5~5 h)相比,该方法大大缩短了反应时间。此外,还探讨了微波下纤维素接枝共聚的自由基反应机理。
关键词:纤维素;微波;离子液体;接枝共聚
 
中图分类号:TS71+1    
文献标识码:A    
文章编号:1000-6842(2010)04-0019-04
 
Preparation of Cellulose Acrylamide Grafted Copolymer in Ionic Liquid with Microwave Irradiation
ZHANG Jia-jun LIN Chun-xiang ZHAN Huai-yu* FU Shi-yu
(State Key Lab of Pulp & Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640)
 
(*E-mail: pphyzhan@scut.edu.cn)
 
Abstract:Acrylamide was grafted onto cellulose in homogeneous phase in the absence of any radical initiator under microwave (MW) irradiation using 1-butyl-3-methylinidazolium chloride ionic liquid  as the reaction medium. The use of microwave resulted in a dramatic reduction of reaction time: 1 min irradiation was sufficient, compared with 0.5 to 5 hours as conventional heating was used. The effects of reaction parameters, such as monomer concentration, crosslilnker dosage, MW power and exposure time were investigated. The structure of the grafted copolymer was confirmed by FT-IR spectrum, TGA and SEM. A probable free radical mechanism for grafting under microwaves was also proposed.
 
Key words:cellulose; microwave; ionic liquid; graft copolymerization
 
 
(责任编辑:田风洲)
 
JOS/PD复合物的相对分子质量与助留助滤性能
陈少平 卢玉栋 林 阳 吴宗华
(福建师范大学化学与材料学院,福建福州,350007)
 
摘 要:采用多角度激光光散射仪(MALLS)-体积排除色谱法(SEC)联用技术研究了交联氧化淀粉(JOS)与聚二甲基二烯丙基氯化铵(PD)形成的复合物(JOS/PD)的质均相对分子质量(Mw)及分布,探讨了JOS的羧基含量对复合物Mw的影响,考察了复合物对废纸浆的助留助滤性能。结果表明,芭蕉芋交联淀粉(JS)的Mw主要分布在1.1×106~2.0×107,其均方旋转半径为236 nm,约是原淀粉(76 nm)的3倍。NaClO氧化导致JOS的羧基含量增大,Mw大幅减小。JOS的氧化程度越大,JOS与PD的复合作用越大,JOS-6的Mw为9.2×104,而JOS-6/PD的Mw为1.0×106。JOS/PD的阳离子含量随JOS羧基含量的增大而减小。JOS/PD用于废纸浆时显示出优良的助留助滤作用,当w(JOS-2/PD)=0.5%时,废纸浆的打浆度和滤液的浊度分别减小63%和81%。JOS/PD的分子形态和离子含量影响其助留助滤性能。
 
关键词:交联氧化淀粉;聚电解质复合物;多角度激光光散射仪;体积排除色谱;助留助滤
中图分类号:TS71+4,O631.4    
文献标识码:A    
文章编号:1000-6842(2010)04-0023-04
 
 
Molecular Weight of JOS/PD Complexes and Its Drainage and Retention Performance
CHEN Shao-ping* LU Yu-dong LIN Yang WU Zong-hua
(Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian Province, 350007)
(*E-mail: chenshpn@fjnu.edu.cn)
 
Abstract: The molecular weight (Mw) and its distribution of the complexes (JOS/PD) of cross-linked oxidized starch (JOS) and polydimethyldiallylammonium chloride (PD) were investigated using a multi-angle laser light scattering instrument (MALLS) - size exclusion chromatography (SEC). The effects of carboxyl content on Mw of JOS/PD and drainage and retention performance of JOS/PD were discussed. The Mw of the Canna cross-linked starch (JS) is mainly in the range of 1.1×106 to 2.0×107. The mean square gyration radius of the starch is 236 nm, about three times as large as that of the native starch (76 nm). NaClO oxidation increases carboxyl content of JOS, but reduces Mw of JOS significantly. The greater the oxidation degree of JOS is, the greater the complex reaction of JOS and PD is. The Mw of JOS-6 is 9.2×104, while the Mw of JOS-6/PD is 1.0×106. The cationic content of JOS/PD decreases with increase of carboxyl contents of the JOS. JOS/PD shows excellent drainage and retention performance in papermaking with the pulp from waste paper. The beating degree of the pulp and the turbidity of the white water are reduced by 63% and 81% at w(JOS-2/PD)=0.5%, respectively. The Mw and cationic content of JOS/PD affect the drainage and retention performance.
 
Key words:cross-linked oxidized starch; polyelectrolyte complex; multi-angle laser light scattering instrument; size exclusion chromatography; drainage and retention
 
(责任编辑:王 岩)
 
高岭土一次酸浸制取聚合氯化铝工艺研究
漆智鹏 戴红旗* 李莎莎 李大超
(南京林业大学江苏省制浆造纸科学与技术重点实验室,江苏南京,210037)
 
摘 要:以高岭土、盐酸为主要原料,采用酸溶一步法制备了聚合氯化铝,产品质量指标达到了GB15892—2003中一级品的要求。酸浸及聚合反应的优化实验研究结果表明,高岭土一次酸浸制备PAC的较佳工艺为:高岭土在750℃下煅烧3 h,盐酸与高岭土中氧化铝的摩尔比为5,添加质量分数为15%的盐酸,在90℃条件下酸浸3.5 h,用饱和氢氧化钠将pH值控制在4.0,在70℃条件下熟化6 h,液态PAC的碱化度达到40.73%。
 
关键词:高岭土;一次酸浸;PAC
 
中图分类号:TS727    
文献标识码:A    
文章编号:1000-6842(2010)04-0027-04
 
One Step Preparation of PAC from Kaolin and Hydrochloric Acid
QI Zhi-peng DAI Hong-qi* LI Sha-sha LI Da-chao
(Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing, Jiangsu Province, 210037)
 
(*E-mail: daihq@njfu.com.cn)
 
Abstract: PAC was prepared by using kaolin, hydrochloric acid as the main raw materials and adopting one step preparation method; two raw materials were mixed and reacted with each other to produce the final product. This PAC is the first class product according to the national standard GB15892—2003. With the DOE design and other experiments the optimal preparation conditions are as follows: Kaolin is calcined at 750℃ for 3 h, then 15% hydrochloric acid is added into the calcined Kaolin under hydrochloric acid and alumina molar ratio of 5, reaction temperature is 90℃ and reaction time lasts 3.5 h, again the pH value is adjusted to 4.0 by adding saturated sodium hydroxide, and then the liquid aging is at 70℃ for 6 h. Finally, basicity of PAC is close to 40.73%.
 
Key words:Kaolin; one step; PAC
 
(责任编辑:赵旸宇)
 
 
分子质量调节剂对苯丙微乳液性能的影响
樊慧明 马雅琦 刘建安 王建高
(华南理工大学制浆造纸工程国家重点实验室,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:选用十二烷基硫醇作为分子质量调节剂合成了苯丙微乳液表面施胶剂,保持其他合成因素和操作条件不变,通过改变分子质量调节剂的用量,探讨调节剂对苯丙微乳液性能和纸张表面施胶效果的影响。实验结果表明,调节剂的用量对苯丙微乳液的稳定性能有较大影响,当调节剂用量超过0.6%(占总单体质量)或低于0.2%时,乳液的凝胶量显著增加。当调节剂的用量为0.2%~0.4%时,所得乳液对纸张施胶后的抗水性最好,其正/反面Cobb值从103.4/110.1 g/m2降至29.2/30.6 g/m2,这时聚合物的质均相对分子质量Mw=129896,分散系数接近1.0。调节剂用量对苯丙微乳液黏度、施胶纸张的强度及光学性能的影响不明显。
 
关键词:分子质量调节剂;苯丙乳液;表面施胶
 
中图分类号:TS727+.5    
文献标识码:A    
文章编号:1000-6842(2010)04-0031-05
 
Effect of Molecular Weight Regulator on the Properties of Styrene Butyl-acrylate Emulsion
 
FAN Hui-ming* MA Ya-qi LIU Jian-an WANG Jian-gao
(State Key Lab of Pulp and Paper Engineering, Paper and Pollution Control National Engineering Research Center, South China University and Technology, Guangzhou, Guangdong Province, 510640)
 
(*E-mail: fhm_64@sohu.com)
 
Abstract: The dosage of molecular weight regulator controls the molecular weight distribution. Meanwhile, the molecular weight affects physical and chemical properties of the polymer significantly. This paper chose TDDM, as molecular weight regulator, to synthesize styrene butyl-acrylate emulsion used for surface sizing agent. The properties of styrene butyl-acrylate emulsion and its paper surface sizing performance with the change of the dosage of molecular weight regulator were studied. The results showed that the different dosage of molecular weight regulator has great influence on the emulsion stability, and the amount of gel increases significantly when the dosage is more than 0.6%, or less than 0.2% on monomer dosage. Furthermore, when the regulator dosage is in the range of 0.2% to 0.4%, the water-resistance of the paper surface sized with the emulsion is the best, the Cobb value reduces from 103.4/110.1 g/m2 to 29.2/31.6 g/m2. The relative molecular weight of the polymer is 129896, and the dispersion coefficient is almost 1.0.
 
Key words:molecular weight regulator; styrene butyl-acrylate emulsion; surface sizing
 
(责任编辑:孙秋菊)
 
脱墨浆DCS水中黏性物质的构成分析
李立波1 高 扬1,2,* 于海龙1 张凤山2,3 秦梦华1
(1.山东轻工业学院造纸科学与技术省部共建教育部重点实验室,山东济南,250353;
2.华泰集团有限公司,山东广饶,257335;3.南京林业大学江苏省制浆造纸科学与技术重点实验室,江苏南京,210037)
 
摘 要:研究了现代化大型脱墨浆及新闻纸生产线上的废纸在热分散后、后浮选后和成浆池处以及成品纸样浆料DCS水中黏性物质的化学组成。甲基叔丁基醚抽出物的GC-MS分析发现,黏性物质由
合成黏合剂、木材抽出物、木质素降解产物和其他有机酸类组成。其中,合成黏合剂是抽出物的主要成分,约占黏性物质总量的62%~77%。约11%的呈胶体状态的黏性物质可以在后浮选中被去除。使用阳离子型造纸化学品可以减少浆水体系中部分黏性物质。只有少部分黏性物质附着在纸浆纤维上,70%以上的黏性物质仍留在白水循环系统中,或在造纸机设备机件上沉积。
 
关键词:废纸脱墨浆;DCS水;GC-MS分析;黏性物质组成
 
中图分类号:TS749+.7    
文献标识码:A    
文章编号:1000-6842(2010)04-0036-06
 
GC-MS Analysis of Sticky Contaminants at the Major Points of a Deinking Pulping Line
 
LI Li-bo1 GAO Yang1,2,* YU Hai-long1 ZHANG Feng-shan2,3 QIN Meng-hua1
 
(1. Key Lab of Pulp and Paper Science and Technology of Ministry of Education, Shandong Institute of Light Industry, Ji’nan, Shandong Province, 250353; 2. Huatai Group Co., Ltd., Guangrao, Shandong Province, 257335; 3. Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing, Jiangsu Province, 210037; )
 
(*E-mail: ygao@sdili.edu.cn)
 
Abstract: In this paper, sticky contaminants at the major points of a deinking pulping line for newsprint production were studied. Pulps were sampled from the heat-disperser, the post-flotation and the paper machine chest; meanwhile, the resultant paper sheets were also examined. GC-MS Analysis of MTBE (methyl tertbutyl ether) extractives of aqueous phases showed that contaminants are complicated, and they can be grouped as adhesives, wood extractives, lignin-derivatives and other organic acids. Adhesives are major components in the extractives and account for 62%~77%. About 11% contaminants, as colloidal substances, are removed through the post-flotation. Sticky contaminants in the pulp suspension can be reduced to some extent by adding cationic polymers. Over 70% of contaminants remain in the cycling white water system which may finally result in deposits in the paper machine, only part of the contaminants are carried over with the paper sheet.
 
Key words:deinked pulp; aqueous phases; GC-MS analysis; sticky contaminants
 
 
 
(责任编辑:刘振华)
 
 
磁铁矿用于办公废纸脱墨的研究
郑 其 车小奎 段 锦 陈 松 陈伟东
(北京有色金属研究总院,北京,100088)
 
 
摘 要:研究了疏水性磁铁矿用于办公废纸脱墨的选择性凝聚技术。利用柴油使油墨与磁铁矿发生凝聚,然后采用磁选法实现油墨(油墨与磁铁矿聚团)的分离。在废纸浆中添加柴油作凝聚剂,柴油选择性地将疏水性磁铁矿与油墨通过液桥连结在一起,且形成大颗粒的球体,再用磁选脱除。研究结果表明,在pH值为9、浆浓2%条件下,加入占废纸质量0.04%的疏水性磁铁矿和0.4%的柴油可获得96%以上的油墨去除率。
 
关键词:疏水性磁铁矿;柴油;选择性凝聚;磁选脱墨
 
中图分类号:X793    
文献标识码:A    
文章编号:1000-6842(2010)04-0042-05
 
A Study on Deinking of Office Waste Paper with Magnetite
 
ZHENG Qi* CHE Xiao-kui DUAN Jin CHEN Song CHEN Wei-dong
 
(General Research Institute for Nonferrous Metal, Beijing, 100088)
 
(*E-mail: qiz65@sina.com)
 
Abstract: Hydrophobic magnetite was used for selective agglomeration deinking of the office waste paper. Diesel oil was used to agglomerate the ink and magnetite, and then the inks (ink and magnetite agglomeration) were separated by using magnetic separation technology. The diesel as coagulant was added to the waste paper pulp, and selectively combined hydrophobic magnetite and the inks together through the liquid bridge, the large sphere particles were produced and removed subsequently. Studies indicated that it can achieve more than 96% of the deinking rate when adding the hydrophobic magnetite of 0.04%(on pulp) and diesel of 0.4% under pH value of 9, pulp consistence of 2%.
 
Key words:hydrophobic magnetite; diesel; selective agglomeration; magnetic deinking
 
 
 
 
(责任编辑:关 颖)
 
 
原纤化Tencel纤维对滤纸性能的影响
梁 云 于 天 胡 健
(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Tencel纤维随打浆强度的变化进行了研究;对比了相同质量分数下,高原纤化Tencel纤维和玻璃棉分别与木浆纤维复配抄纸的成纸的物理性能和过滤性能。结果表明,随着打浆强度的提高,Tencel纤维的形态会发生显著改变,最终出现大量原纤;Tencel纤维和玻璃棉纤维分别与木浆复配后,所得纸样的透气度和孔径接近,但玻璃棉复配纸样的多通过滤性能较优,而高原纤化Tencel纤维复配纸样则有明显的强度优势。
 
关键词:Tencel纤维;原纤化;过滤;玻璃棉;性能
 
中图分类号:TS761.2    
文献标识码:A    
文章编号:1000-6842(2010)04-0047-05
 
Influence of Fibrillated Tencel Fiber on the Performance of Filter Media
 
LIANG Yun* YU Tian HU Jian
 
(State Key Lab of Pulp & Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640)
 
(*E-mail: liangyun@scut.edu.cn)
 
Abstract: The change of Tencel fiber with the beating was studied, the performance of the filter media containing fibrillated Tencel fibers was compared with the media containing glass microfibers at the same content. The results showed that the Tencel fibers changes obviously by beating and a mass of fibril appear after intensive beating. The air permeability and pore size of the filter medias containing the same content of glass microfibers and fibrilled Tencel fibers are very similar, the filter media containing glass microfibers has better multi-pass performance and that containing fibrilled Tencel fibers has obvious strength advantage.
 
Key words:Tencel fiber; fibrillation; filtration; glass microfiber; performance
 
 
(责任编辑:赵旸宇)
 
 
遗传投影寻踪插值模型在纸浆质量评价中的应用
熊智新 胡慕伊 陈朝霞 胡 明
(南京林业大学江苏省制浆造纸科学与技术重点实验室,江苏南京,210037)
 
 
摘 要:针对纸浆质量分级评价界限具有模糊性的问题,利用投影寻踪、遗传算法、插值型曲线和纸浆质量评价标准,分析样本的最佳投影值及其对应质量等级的关系,构建了评价纸浆质量的投影寻踪插值模型(GPPIM)。实例研究表明,基于投影寻踪插值模型的评价结果与模糊评价结果一致,该方法客观可靠、精度高,是更具应用前景的新方法。
 
关键词:纸浆;插值;投影寻踪;综合评价
 
中图分类号:TS749    
文献标识码:A    
文章编号:1000-6842(2010)04-0052-04
 
 
Application of Genetic Projection Pursuit Interpolation Model in Evaluation of Pulp Quality
 
XIONG Zhi-xin* HU Mu-yi CHEN Zhao-xia HU Ming
 
(Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University,
Nanjing, Jiangsu Province, 210037)
 
(*E-mail: hbxzx@nifu.com.cn)
 
Abstract: In order to solve the fuzziness problem in the evaluation of pulp quality, the methods of projection pursuit, genetic algorithm, interpolation technique and lots of sample data from the evaluation standards of pulp quality were employed, and a novel model——genetic projection pursuit interpolation model (GPPIM), was presented for pulp quality evaluation based on the relationship between the best project value and corresponding quality level. The case studies showed that the evaluation results of GPPIM are consistent with that of fuzz mathematical model. The new method features objective modeling, credibility, effectiveness and promising application.
 
Key words:pulp; interpolation; projection pursuit; comprehensive evaluation
 
 
(责任编辑:郭彩云)
 
 
高级氧化技术在造纸废水处理中的应用
刘 生1 杨德敏2 方 健3 高 澍4,* 谭 婷5
(1.吉林工业职业技术学院,吉林省吉林市,132013;2.西南石油大学化学化工学院,四川成都,610500;3.广西华泰同益环保技术有限公司,广西南宁,530000;4.广西师范大学环境与资源学院,广西桂林,541004;5.四川大学建筑与环境学院,四川成都,610065)
 
 
摘 要:高级氧化技术对废水中难降解有机物质有较高的去除效率,因而受到广泛关注。重点介绍了芬顿法与类芬顿法、臭氧氧化法、光催化氧化法、超临界水氧化法、湿式催化氧化法等高级氧化技术的作用机理及其在造纸废水处理中的研究进展,分析并指出了各种高级氧化技术的特点、存在的问题和今后的发展方向。
 
关键词:高级氧化技术;造纸废水;机理;羟基自由基
 
中图分类号:X793     
文献标识码:A    
文章编号:1000-6842(2010)04-0056-07
 
Mechanism of Advanced Oxidation Processes and Their Application Progress in Papermaking Effluent Treatment
 
LIU Sheng1 YANG De-min2 FANG Jian3 GAO Shu4* TAN Ting5
 
(1. Jilin Vocational College of Industry and  Technology, Jilin, Jilin Province, 132013; 2. College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan Province, 610500; 3. Guangxi Huatai Tongyi Environmental Protection Technology Co., Ltd., Nanning, Guangxi Zhuang Autonomous Region, 530000; 4. School of Environmental Science and Resources, Guangxi Normal University, Guilin, Guangxi Zhuang Autonomous Region, 541004;  5. College of Architecture and Environment, Sichuan University, Chengdu, Sichuan Province, 610065)
 
(* E-mail: ggqq2007@163.com)
 
Abstract: The advanced oxidation processes have attracted more and more extensive attention due to their higher removal efficiency of the refractory organic materials in wastewater. The mechanism of advanced oxidation processes, such as Fenton and Fenton-like process, ozone oxidation, photo-catalytic oxidation, supercritical water oxidation, and catalytic wet air oxidation,
and their application progress in papermaking effluent treatment were summarized. The characteristic and remaining problems and the developing tendency of different advanced oxidation processes were analyzed.
 
Key words:advanced oxidation processes; papermaking wastewater; mechanism; hydroxyl radical
 
 
(责任编辑:孙秋菊)
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