摘要
采用硅烷偶联剂（HG-560）对纳米氮化硅进行表面处理，选择超声波和高速剪切分散制备复合材料。运用。TEM、FT-IR对复合材料进行研究，结果表明：纳米氮化硅处理后，在有机溶剂中分散性良好，改性剂包覆在其表面，许与其发生了化学作用。研究了纳米氮化硅粒子对其填充的环氧树脂6101力学性能，结果发现纳米Si3N4／EP复合材料的拉伸强度和耐冲击性都随纳米氮化硅不同的添加量有相应的提高，经偶联剂改性后，提高的幅度更大。TG表征，存120～380℃之间，纳米Si3N4复合材料的热失质量较空白基体的热失质量小；复合材料的热稳定性略有提高。
The nano silicon nitride was surface treated with silane coupling agent （HG- 560） and then dispersed by ultrasonic or high speed dispersing device to prepare the hybrid resin. The results showed that the coupling agent was chemically bonded on the surface, which improved its dispersibility in solvent. The mechanical properties of nano silicon nitride particle filled 6101 epoxy resin was investigated. It is found that the elongation strength and impact of the Si3N4/EP hybrid resin were improved. The Tg ranged between 120 - 380 ℃. The heat loss was decreased compared to the blank and thermal stability was slightly improved.
出处
《涂料工业》
CAS
CSCD
2008年第11期1-3,7,共4页
Paint & Coatings Industry
基金
安徽省教育厅自然科学研究项目(KJ2007B40ZC)
关键词
纳米氮化硅
环氧树脂
表面改性
热稳定性
力学性能
nano silicon nitride
epoxy resin
surface modification
thermal stability
mechanical property
