PREPARATION METHOD OF PHOSPHAPHENANTHRENE-STRUCTURE REACTIVE FLAME RETARDANT AND APPLICATION THEREOF
申请人:XIAMEN UNIVERSITY
公开号:US20190382427A1
公开(公告)日:2019-12-19
Disclosed are a phosphaphenanthrene-structure reactive flame retardant and an application thereof. The preparation method comprises: enabling 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO), p-hydroxy benzaldehyde (4-HBA), and 5-aminomethyl-1,3-diphenyl-1,3,5-diphosphonitryl heterocycles to react under a certain condition to obtain the reactive flame retardant with a benzene ring rigid structure containing polyhydroxy. Compared with an ordinary flame retardant, the phosphaphenanthrene-structure reactive flame retardant has the characteristics that polyfunctionality is achieved, the molecular structure is stable, the hydrolysis resistance is better, and less migration in epoxy resin, moreover, the flame retardant property of the epoxy resin can be remarkably improved.
揭示了一种磷酚菲结构的反应型阻燃剂及其应用。制备方法包括:使9,10-二氢-9-氧-10-磷酚菲-10-氧化物(DOPO)、对羟基苯甲醛(4-HBA)和5-氨基甲基-1,3-二苯基-1,3,5-二磷氮杂环在一定条件下反应,以获得具有苯环刚性结构和多羟基的反应型阻燃剂。与普通阻燃剂相比,磷酚菲结构的反应型阻燃剂具有多功能性、分子结构稳定、抗水解性更好、在环氧树脂中迁移较少的特点,此外,环氧树脂的阻燃性能也可以显著提高。