CE/纳米SiO_2复合材料的改性研究  

STUDY ON MODIFICATION OF CE NANOMETER SiO_2 COMPOSITES

作　　者：王君龙[1] 祝保林[1] 张文根[1] 梁国正[2] 

机构地区：[1]渭南师范学院复合材料研究所,渭南714000 [2]西北工业大学理学院,西安710072

出　　处：《工程塑料应用》2007年第10期21-25,共5页Engineering Plastics Application

基　　金：陕西省自然科学基金资助项目(2006B25);陕西省教育厅专项基金项目(07JK241;06JK303)

摘　　要：利用纳米SiO2对氰酸酯树脂(CE)进行改性。结果表明,适量的纳米SiO2可提高CE/纳米SiO2复合材料的冲击强度和弯曲强度;选用不同分子尺寸的偶联剂KH-560和SCA-3对纳米SiO2进行表面处理,扫描电镜(SEM)表明,纳米SiO2经偶联剂处理后CE/纳米SiO2复合材料的静态力学性能、动态力学性能都得到了不同程度的提高,特别是经SCA-3处理后的效果更加明显,偶联剂的加入改善了纳米SiO2在CE中的分散状态,使纳米SiO2与CE之间的界面结合强度进一步提高。CE was modified by nanometer SiO2. The results showed that proper content of SiO2 could improve the impact strength and flexaral strength of composites, Various molecule size of coupling agent KH560 and SCA - 3 were employed to modify nanometer SiO2 surface. The SEM photos showed that the static mechanical and dynamic mechanical properties of CE/nanometer SiO2 composites were improved after the modification of nanometer SiO2 by coupling agent, especially by SCA - 3. The adding of coupling agents improved the dispersity of nanometer SiO2 in CE and the interface bound strength of nanometer SiO2 and CE.

关 键 词：氟酸酯树脂 纳米SIO2 力学性能 偶联剂 改性 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]