纳米二氧化钛增强增韧不饱和聚酯树脂的研究  

TOUGHENED AND STRENGTHENED UNSATURATED POLYESTER RESIN BY NANO TITANIUM DIOXIDE

作　　者：徐群华[1] 孟卫[1] 杨绪杰[1] 陆路德[1] 汪信[1] 

机构地区：[1]南京理工大学材料化学实验室,江苏南京210094

出　　处：《高分子材料科学与工程》2001年第2期158-160,共3页Polymer Materials Science & Engineering

基　　金：:江苏省科委资助项目

摘　　要：用未经表面处理和经表面处理的纳米 Ti O2 对不饱和聚酯 ( UP)树脂进行填充改性。研究了纳米Ti O2 用量对不饱和聚酯树脂的拉伸强度、弯曲强度、冲击强度、断裂伸长率的影响。结果表明 ,经表面处理的纳米 Ti O2 用量为 4 %时 ,材料的增韧增强效果最好。用 DSC测定复合材料的玻璃化温度 ( Tg) ,可以发现复合材料的玻璃化温度比纯不饱和聚酯树脂大 ,且经处理的填充的复合材料的 Tg 更高 。In this paper, unsaturated polyester resin was modified by filling treated and untreated nano titanium dioxide. The effects of content of nano TiO 2 on the tensile strength, bending strength, impact strength and elongation at break of UP were studied. The results show that, when the content of treated nano TiO 2 is 4%, the mechanical properties are optimal. The glass temperature( T g) of composite materials were measured by DSC. It is found that the T g of composite materials is higher than that of UP resin, and the composite materials of treated TiO 2 has a higher T g, which is in agreement to the results of mechanical properties.

关 键 词：纳米二氧化钛 不饱和聚酯树脂 增韧 增强 

分 类 号：TQ323.42[化学工程—合成树脂塑料工业] TQ327.8