壳聚糖用作红麻全秆地膜湿强剂的研究  

Chitosan: Wet Strength Agent of Kenaf Based Paper Mulch

作　　者：吴星娥[1] 周景辉[1] 王井[1] 

机构地区：[1]大连轻工业学院,辽宁大连116034

出　　处：《中国造纸学报》2004年第2期92-95,共4页Transactions of China Pulp and Paper

基　　金：辽宁省自然科学基金资助项目 (2 0 0 2 2 1 1 9)

摘　　要：通过内添加和表面施胶两种方法对红麻全秆地膜的湿强性能进行了实际应用研究。通过正交实验分析表明 ,壳聚糖内添加的最佳条件为 :壳聚糖用量为 1 5 % ,羧甲基纤维素用量 0 1 % ,水溶性PVA用量 1 % ,系统pH值为 7 0 ,抄片温度 2 0℃ ,此时干裂断长为 7 1km ,湿裂断长为 0 67km ,湿强度 (W/D)达到 9 44%。而利用表面施胶方法制成的红麻地膜的干、湿裂断长都有了很大的提高 ,而且在添加少量的无甲醛抗水剂的条件下 ,湿强度可接近 2 5 % ,完全满足地膜的湿强性能要求。Practical application study of wet strength performance of the kenaf based paper mulch where the chitosan was added into the pulp and also applied in surface sizing were carried out in this paper. The optimum internal application conditions were determined through the orthogonal experiment. The amount of chitosan was 1.5%, CMC 0.1%, soluble PVA 1%, pH value 7.0, reaction temperature 20 ℃. At the optimum conditions, the dry breaking length was 7100m, wet breaking lengthy 670m, W/D 9.44%. Furthermore, the dry breaking length and wet breaking length were improved significantly when surface sizing was used. Moreover, the wet strength could reach about 25% through adding a small quantity of water repellent agent. It can satisfy completely the requirement of wet strength performance of the kenaf based paper mulch.

关 键 词：裂断长 红麻全秆 表面施胶 湿强剂 湿强度 无甲醛抗水剂 用量 地膜 添加 利用 

分 类 号：TS727[轻工技术与工程—制浆造纸工程] TS761.3