Effect of Silica Nanoparticles Grafted by DOPO on Flame Retardancy and Transparency of PMMA Nanocomposites

摘要：

　　In this work, 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) was grafted onto the surface of silica nanoparticles, and the resultant nanopaticles (SiO2-g-DOPO) were employed to improve the flame retardancy of PMMA.The results from LOI, UL-94 and cone calorimeter testing indicated that the modified silica could effectively improve the flame retardancy of PMMA, which is mainly attributed to the synergistic effect between nanoparticles and phosphorous flame retardant to form compact protective carbon layer.Meanwhile, similar to pure PMMA, the as-prepared PMMA nanocomposites kept good transparency, which is positive to the wide applications of PMMA with high demand of both optical transparency and flame retardancy.

作者: Dongsheng Wang Xin Wen Xuecheng Chen Mingang Li Yunhui Li Tao Tang

作者单位: State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

会议类型: 国际会议

会议名称: 5th International Symposium on Flame-Retardant Materials & Technologies(ISFRMT 2018)(第五届阻燃材料与技术国际研讨会 )

会议地点: 杭州

会议语种:英文

页码: 202-203

在线出版日期: 2018-06-14（万方平台首次上网日期，不代表论文的发表时间）