华南农业大学学报2011，Vol.32Issue(3)：53-56,4.
碱性敏感型农药控释剂的载体制备及合理优化
preparation and Reasonable Optimization of Basic Sensitive Controlled-Release Carrier of Pesticides
摘要
Abstract
Based on the differences in pH between the insect midgut and the digestive system of higher animals, it was potential that the selective controlled-release pesticides formulation would be prepared. O-carboxymethyl chitosan (O-CMCS) and poly (vinyl alchol) (PVA) were used to prepare the hydrogel with glutaraldehyde (CA) as crosslinking agent, and optimization of conditions for preparing was based on the swelling properties ratio of hydrogel when combined with the characteristics of controlled release pesticides. The results showed that the swelling ratio of gel prepared by crosslinking was the maximum at pH 8.5 when the amount of PVA was 0. 3 g, and CMCS/PVA mass ratio was A- 1, and the amount of w(GA)was 2% of the total CMCS/PVA. It scraped the surface that the gel had a good basic sensitivity and maintained the stable structure, which could be used as carrier of basic sensitive controlled-release pesticides.关键词
碱性敏感/控释剂/水凝胶/交联/溶胀度Key words
basic sensitive/ controlled-release agent/ hydrogel/ crosslinking/ swelling ratio分类
化学化工引用本文复制引用
王磊,程东美,徐汉虹,张志祥..碱性敏感型农药控释剂的载体制备及合理优化[J].华南农业大学学报,2011,32(3):53-56,4.基金项目
广东省农业领域重点项目-农业公关“安全农业投入品开发”(2009A020101003) （2009A020101003）
