公开(公告)号：US20190382427A1

公开(公告)日：2019-12-19

申请号：US16463735

申请日：2017-11-23

Applicant: XIAMEN UNIVERSITY

Inventor： Lizong DAI ,  Chao LIU ,  Guorong CEHN ,  Jiamei HUANG ,  Yiting XU ,  Birong ZENG ,  Wei'ang LUO ,  Cohghui YUAN ,  Kaibin HE ,  Xinyu LIU

IPC: C07F9/6584 ,  C08G59/62

Abstract: 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.