【摘要】：采用傅里葉紅外光譜儀、差示掃描量熱儀、旋轉(zhuǎn)流變儀等研究對(duì)比未老化尼龍1010(PA1010)及在160℃下熱氧老化48,96,192,384h樣品的微觀結(jié)構(gòu)和流變性能的變化。結(jié)果表明:隨著熱氧老化時(shí)間的延長,PA1010發(fā)生降解,主晶區(qū)減小,分子鏈上酰胺鍵和亞甲基也變少,降解產(chǎn)物生成了熔點(diǎn)更低的晶體。但流變結(jié)果中模量曲線在低頻區(qū)出現(xiàn)的平臺(tái)表明老化過程中不但發(fā)生降解反應(yīng),還存在交聯(lián)反應(yīng),復(fù)數(shù)黏度、濁度和凝膠含量的測試進(jìn)一步佐證了這一結(jié)論。
[Abstract]:Fourier transform infrared spectroscopy (FTIR), differential scanning calorimeter (DSC) and rotary rheometer were used to study and compare the microstructure and rheological properties of the unaged nylon 1010 (PA1010) and the samples aged at 160 鈩，

本文編號(hào)：2136492