Polymethacrylimide foamable particle rapidly prepared by photo-initiation

• Main Authors: XU WENSHENG, DONG YANLI, LI FENG, MENG JIALI, FAN XIAOQING, LI KEDI, MAO MINLIANG, CHANG YI
• Format: Patent
• Language: Chinese; English
• Published: 12.03.2019
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

The invention relates to the field of new material preparation, and discloses a polymethacrylimide foamable particle rapidly prepared by photo-initiation. Through introducing subsection polymerizationand photo-initiation polymerization, reaction time is greatly shortened, reaction efficiency is improved, and automatic continuous production is realized. Through controlling a thickness of a board within a certain range, and crushing, a crushing yield can be greatly improved. The invention provides a low-cost polymethacrylimide foamable particle rapidly prepared by the photo-initiation and a preparation method thereof, and solves problems of the existing PMI foamable particle preparation process that the reaction period is long, the raw material price is expensive, the crushing yield is low,the adhesive property between the particles of an intra-mode foaming product is poor and the like. 本发明涉及新材料制备领域，本发明方法公开的种光引发快速制备的聚甲基丙烯酰亚胺可发泡粒子，通过引入分段聚合及光引发聚合，大大减短反应时间，提高反应效率，实现自动化连续生产；通过将板材厚度控制在定范围，再进行破碎，可以大大提高破碎收率；本发明提供种光引发快