化工进展2018，Vol.37Issue(5)：1881-1887,7.DOI:10.16085/j.issn.1000-6613.2017-1411
原子转移自由基聚合法改性纳米氮化硅粉体的制备工艺及性能
Preparation and properties of nano-Si3N4powder modified by ATRP
摘要
Abstract
3-Triethoxysilylpropylamine(KH-550)and chloracetyl chloride were utilized to introduce the initiator on the surface of nano-Si3N4. The surface-initiated acrylic polymer modified nano-Si3N4 powder was prepared by atom transfer radical polymerization(ATRP)method by using methyl methacrylate(MMA)and glycidyl methacrylate(GMA)as monomer. ATRP modified nano-Si3N4 powders were characterized by Fourier infrared spectroscopy(FTIR),nuclear magnetic resonance spectroscopy(1H NMR)and gel permeation chromatography(GPC),and the optimum process conditions for preparing modified Si3N4were determined. Malvern laser particle size analyzer, scanning electron microscope(SEM) and contact angle tester were used to characterize the properties of the nano-Si3N4powders before and after modification. The results indicate that the modified nano-Si3N4powders prepared by this method have good dispersibility, while the particle size and the agglomeration of the nano-Si3N4powders decreased in ethanol solution, and the molecular weight distribution of the surface graft copolymer was narrow and controllable.关键词
原子转移自由基聚合/氮化硅/纳米粒子/团聚/粒度分布Key words
atom transfer radical polymerization/silicon nitride/nanoparticles/agglomeration/particle size distribution分类
化学化工引用本文复制引用
黄李晓研,魏铭,王钦利,刘晓芳..原子转移自由基聚合法改性纳米氮化硅粉体的制备工艺及性能[J].化工进展,2018,37(5):1881-1887,7.基金项目
国家自然科学基金项目(51272191). （51272191）
