淀粉基农药缓释基材的研究  

Studies on the starch foundation degradable materials of controlled release agrochemicals

作　　者：张贞浴[1] 吴延丽[1] 孙立国[1] 于佳[1] 

机构地区：[1]黑龙江大学化学化工与材料学院,黑龙江哈尔滨150080

出　　处：《黑龙江大学自然科学学报》2004年第3期92-95,共4页Journal of Natural Science of Heilongjiang University

基　　金：黑龙江省自然科学基金(E9820)

摘　　要：以淀粉、改性淀粉和聚乙烯醇为原料,在交联剂的作用下,以不同的加入顺序在不同的反应温度下混合形成交联的产物,制得农药缓释基材。随交联产物的降解,使包裹在其中的农药逐步释放,实验主要研究交联剂的用量、加入顺序、反应温度和包裹方式对基材缓释性能的影响。实验结果表明,此淀粉基农药缓释基材具有成本低、可生物降解、无环境污染等特点。The controlled-release technique can control the release rate of a certain active component in the expect time and enable the active component to maintain a given effective concentration in a certain system. The degradable compact cross-linked product was prepared by using modified starch, solvent and crosslinker. The pesticide can release gradually along with the above-mentioned product. The controlled-release character and formulation of degradable materials, the effect of the amount of solvent and crosslinker, the turn of blend, the different pattern of release were studied. The degradable material is better than others that are reported, its cost is cheap, it is biodegradable and it has no pollution.

关 键 词：交联 降解材料 控制释放 包膜肥料 

分 类 号：TQ321.2[化学工程—合成树脂塑料工业]