期刊论文

Study on the key preparation process of beta-cypermethrin poly (N-propylacrylamide) temperature-sensitive microsphere

中文

农药学学报

Chinese Journal of Pesticide Science

1008-7303

2017

19

2

266-272

10.16801/j.issn.1008-7303.2017.0035

山西省科技攻关项目(20140311007-20)； 山西省农业科技成果转化和推广示范工程(2015CGZH041)； 公益性行业(农业)科研专项(201103024)； 山西省农业科学院科技自主创新能力提升工程(2017-ZZCX-15)；

本校为其他机构

为获得防治桃小食心虫Carposina niponensis Walsingham的控释化农药产品,根据温敏材料聚(N-正丙基丙烯酰胺)(PNNPAM)的体积相转变温度与桃小食心虫出土高峰温度相近的特点,采用无皂乳液聚合法制备了高效氯氰菊酯PNNPAM温敏微球,并考察了反应温度及N-正丙基丙烯酰胺(NNPAM)、N,N-亚甲基双丙烯酰胺(MBA)质量浓度对温敏微球制备工艺的影响。结果表明:当反应温度为70~80 ℃时,可制得粒径为(601.3 ± 5.6)~(638.6 ± 8.9) nm、载药量和包埋率均较高的高效氯氰菊酯PNNPAM温敏微球,且载药量和包埋率随着NNPAM、 MBA质量浓度的增加而增大,温度对该微球累积释放率有显著影响。

In order to develop a pesticide product for the control of Carposina niponensis Walsingham, beta-cypermethrin poly (N-propylacrylamide) (PNNPAM) temperature-sensitive microsphere was developed. Given that the volume phase transition of PNNPAM and the peak emergence of C. niponensis happen at similar temperature, the microsphere was prepared by a surfactant-free emulsion polymerization method. Effects of temperature, the concentration of N-propylacrylamide (NNPAM) and the concentration of N,N'-methylene diacrylamide (MBA) on the preparation of t...