CAJ | 학술논문

介绍了工程塑料的化学交联改性，化学扩链交联及自由基偶合交联是在工程塑料中引入三维网络结构的2种基本改性方法。交联改性可以提高工程塑料的力学性能和热性能。通过反应性官能团偶合可以一步制备具有交联结构的工程塑料，但随交联程度的提高，反应挤出的难度增加。由于自由基偶合交联工程塑料需要较长的前处理时间，生产效率低，难以工业化应用。开发高效交联剂、优化反应工艺是工程塑料交联改性的发展趋势。
개소료공정소료적화학교련개성，화학확련교련급자유기우합교련시재공정소료중인입삼유망락결구적2충기본개성방법。교련개성가이제고공정소료적역학성능화열성능。통과반응성관능단우합가이일보제비구유교련결구적공정소료，단수교련정도적제고，반응제출적난도증가。유우자유기우합교련공정소료수요교장적전처리시간，생산효솔저，난이공업화응용。개발고효교련제、우화반응공예시공정소료교련개성적발전추세。
Chemical crosslinking of engineering plastics has been briefly introduced .Crosslinking initiated by chain ex-tension and by coupling of free radicals are the two basic modification methods for introducing three -dimensional structure into engineering plastics .The mechanical and thermal properties of engineering plastics can be improved by crosslinking modification method .One-step preparation of crosslinked engineering plastics can be realized through coupling of reactive groups.However,the difficulty of reactive extrusion increases with the enhancement of crosslinking level .It is difficult to re-alize industrial application of crosslinking engineering plastics by coupling of free radicals due to the long pre -treatment time and low production efficiency .Future trends in crosslinking of engineering plastics focus on development of high effec -tive crosslinker and optimize reaction process .