摘要
地膜覆盖技术在给农业生产带来巨大经济效益的同时,也给土壤造成了严重污染。采用植物纤维研制生物降解地膜是解决这一问题的重要途径。同时,地膜需要在风雨晴阴各种气候条件下露天使用,因此在使用的过程中需要较高的干、湿强度。本论文主要以红麻全秆浆为原料,研究了在打浆度为53°SR,CMC添加量为0.1%,水溶性PVA添加量为1%条件下,分别添加聚酰胺环氧氯丙烷(PAE)树脂,三聚氰胺甲醛(MF)树脂和壳聚糖等不同种助剂,抄纸检测纸幅的干、湿裂断长、耐破指数、撕裂度等性能指标,从而选出使红麻地膜各方面性能最优的湿强剂。
Land coverage with plastic film has brought great economic benefits to agriculture. But it also has caused serious soil pollution. The use of biodegradable mulch film made of cellulous fibers is an important way to resolve this problem. Mulch is used in the open air of such weather as windy, rainy, fine and cloudy.So higher dry and wet strength is required. In this paper, performance of sheet with adding polyamide polyamine epichlorohydrin(PAE)、 melamine formaldehyde (MF) and chitosan in kenaf pulp were studied, which given degree 53° SR, Carboxyl methyl cellulose(CMC) amount 0.1% ,soluable polyethylene (PVA) amount 1% . Breaking length, wet dry strength ratio, tear index and burst index of kenaf mulch were measured and optimum wet strength agent in varied properties was selected. The aim is to make mulch have properties of heat preservation, humidity preservation, growth prompting, biodegradation and maximum wet strength and improve impact resistance of mulch to rainwater so as to assure growth of plant and replace plastic film.
出处
《纸和造纸》
北大核心
2005年第1期44-46,共3页
Paper and Paper Making
关键词
纸地膜
红麻
PAE
MF
壳聚糖
kenaf mulch
wet strength agent
PAE
MF
chitosan
