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我们曾报告复凝聚法杀虫剂微胶囊(Ⅰ型)的研制及其缓释长效、安全、减臭的特性。1981年我们又研制成界面聚合法缩脲囊壁的新型杀虫剂微胶囊,称为杀虫剂微胶囊Ⅱ型(简称Ⅱ型微囊)。现将其杀虫效能的材料整理如下。 一、Ⅱ型微囊的研制 以聚甲基聚苯基异氰酸酯、甲苯二异氰酸酯为囊壁材料。先使杀虫剂原油在水相中分散成微滴,在一定温度下,囊壁材料在水与油的界面聚合而成囊壁,将原油微滴包裹在内。在囊壁材料的用量、保护胶的品种与用量、制备干
We have reported the development of complex coacervation pesticide microcapsules (type I) and their long-lasting, safe and odor-reducing properties. In 1981, we also developed a new type of insecticide microcapsules with interfacial polymerization method of urea membrane wall called pesticide microcapsules Ⅱ (referred to as type Ⅱ microcapsules). The insecticidal efficacy of the material is now organized as follows. First, the development of Ⅱ-type microcapsules Polymethyl polyphenyl isocyanate, toluene diisocyanate for the wall material. The pesticide crude oil is first dispersed into droplets in the aqueous phase. Under certain temperature, the wall material is polymerized at the interface of water and oil to form a capsule wall and the crude oil droplets are wrapped therein. In the wall material dosage, the variety and dosage of protective plastic, preparation of dry