褐藻酸钠与PAE二元体系对纸张的增强作用  

Sodium Alginate Adsorption with PAE as Paper Strength Agent

作　　者：宋晓磊[1] 姚春丽[1] 王乐[1] 杜越[1] 

机构地区：[1]北京林业大学材料科学与技术学院,北京100083

出　　处：《纸和造纸》2011年第10期50-54,共5页Paper and Paper Making

摘　　要：通过利用不同黏度的褐藻酸钠(SA)与聚酰胺多胺环氧氯丙烷(PAE)协同作用来提高纸张的抗张强度,得出了与PAE协同作用的SA的最佳黏度在350mPa·s附近,并通过SA与PAE的不同用量配比得出黏度为350mPa·s的SA与PAE协同作用的最佳配比为PAE:SA=3:2,此时纸张的湿抗张指数达到了43.3N·m·g-1,较空白纸页和单独加入0.75%的PAE所抄造纸页分别提高了43.3倍和2.5倍;然后通过扫描电子显微镜(SEM)对本实验所抄造的空白纸页、单独加入PAE纸页和加入PAE-SA二元体系纸页的微观结构进行了观察,结果表明,加入PAE-SA二元体系可在纸页纤维表面会形成明显的抗水膜,从而提高纸页的抗张强度;最后就浆料打浆度对PAE-SA二元体系的影响进行了探究。In this paper sodium alginate （SA） was used together with a cationic polylelectrolyte, poly（amideamine） epichlorohydrin （PAE） to enhance the wet and the dry strength of paper. The best viscosity of SA adsorption with PAE was near 350mPa-s. What＇s more, it was ascertained that the optimal mass ratio of PAE to SA was of 3：2. Under these circumstances, the wet tensile index of the PAE-SA papers were 43.3N·m·g^-1, which were 43.3 times greater than the papers with no addition and 2.5 times greater than the PAE papers. Microstructure of papers in this study were observed by scanning electron microscopy （8EM）. The result showed that adding PAE-SA binary system could form the anti-water film on the surface of paper fibers which could increase paper tensile strength. Finally the effect of beating degree of the pulp to PAE-SA was researched.

关 键 词：褐藻酸钠(SA) 聚酰胺多胺环氧氯丙烷(PAE) 抗张强度 扫描电子显微镜(SEM) 

分 类 号：TS727.2[轻工技术与工程—制浆造纸工程]