摘要
农膜残留田中完全降解约需２００－４００年，除法规限制，回收利用，掩埋和焚烧外，根本出路在于发展降解塑料。目前国内外研制的有光降解性、生物降解性和可溶性几大类塑料，其中以生物降解性的较多，有直接由天然高分子材料制造、生物合成、化学合成的完全生物降解膜和物理改性淀粉填充、化学改性淀粉填充及光、生物降解等不完全生物降解膜。
It needs 200 to 400 years to completely degradate the agricultural films remained in the field.Aside from legal limitation,recovery,burying and burning,developing degradation plastic is the fundamental way to treat the white pollution.At present,among the plastic made in home and abroad,biological degradation plastic accounts for a great part which includes complete biological degradation film made from natural polymer materials and compounded biologically and chemically and non-complete ones of physically of chemically modified filled with amylum,light and biological degradation.
出处
《云南环境科学》
1998年第1期26-28,共3页
Yunnan Environmental Science
基金
云南省教委应用基础研究基金
关键词
污染防治
塑料膜
降解塑料
pollution prevention and treatment plastic film degradation plastic
