【摘要】 研究了一种含二氮杂萘酮结构耐热型环氧固化剂 ,与低分子质量聚酰胺复合使用得到的环氧胶粘剂具有良好的耐热性 ,固化工艺为 140℃ / 2h +180℃ / 3h ,15 0℃有 2 5MPa以上的拉伸剪切强度 ,以及极好的高温保持率 ,可达到 10 0 %。详细研究了表面处理方式和固化工艺对其在常温和 15 0℃下拉伸剪切强度的影响更多还原

【Abstract】 A novel heat resistant epoxy resin adhesive containing two curing agents was investigated. The main curing agent is 4(4-hydroxyphenyl)-1-phthalazinone(DHPZ) and the another is polyamide with low molecular weight (H-4).The structure of phthalazinone gives the adhesive a good heat resistant properties and good shear strength at 150 ℃.The ideal weight ratios of the adhesive was m (E44)∶ m (DHPZ)∶ m (H-4)=100∶40∶20,which was proved by IR spectrum and shear strength data.The effects of the surface treatment,the curing time and temperature,and the speading number on the shear strength were studied.更多还原