自制大分子钛酸酯表面改性剂对纳米Si_3N_4粉末的表面化学修饰  

Surface Modification of Nano-size Si_3N_4 with Home-made Macromolecular Titanate Surface Modifier

作　　者：方胜阳[1] 殷守华[1] 章于川[1] 

机构地区：[1]安徽大学化学化工学院安徽省绿色高分子重点实验室,安徽合肥230039

出　　处：《青岛科技大学学报（自然科学版）》2009年第2期104-107,共4页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：国家科技攻关计划项目(2005BA316C);安徽省绿色高分子重点实验室资助项目

摘　　要：采用自制的大分子钛酸酯表面改性剂对纳米Si3N4进行表面包覆处理,对处理前后的纳米Si3N4粉末运用TEM、FT-IR、TGA等进行了表征。结果表明,大分子钛酸酯表面改性剂包覆在纳米Si3N4粉体表面,并与其发生了化学作用,有效地阻止了纳米Si3N4粉体的团聚,在大分子钛酸酯表面改性剂质量分数为11%时,纳米Si3N4粒子粒径较小,粒径分布最窄。Nano-Si3 N4 particles were coated using home-made macromolecular titanate as surface modifier. The structure and surface properties of modified and as-provided nano- Si3 N4 were systematically investigated by TEM,FT-IR, and TGA. The results indicated that the macromolecular titanate deposited on the surface of nano-Si3N4 particles by chemical reaction, effectively preventing agglomeration of nano-Si3N4 particles. When the mass fraction of the added macromolecular titanate surface modifier was 11（wt）%, the particle diameter of the nano-size Si3 N4 was the smallest and its size distribution was the narrowest.

关 键 词：自制 大分子钛酸酯表面改性剂 包覆 纳米氮化硅 

分 类 号：TB383[一般工业技术—材料科学与工程]