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.
出处
《中国造纸学报》
CAS
CSCD
北大核心
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)
