Intumescent Flame-retardant Modification of Polypropylene/Carbon Fiber Composites  

作　　者：GAO Shanjun LI Yunzhe 高山俊;李蕴哲(School of Materials Sciences&Engineering,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]School of Materials Sciences&Engineering,Wuhan University of Technology,Wuhan 430070,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2022年第2期163-169,共7页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Program for New Century Excellent Talents in University of Ministry of Education of China(NCET-12-0912)。

摘　　要：To improve the flame resistance of polypropylene(PP)/carbon fiber(CF)composite materials,triazine char-forming agent(TCA)was compounded with ammonium polyphosphate(APP)or modified APP(CS-APP)in a 2:1 ratio to prepare intumescent flame retardant(IFR)and the modified intumescent flame retardant(CS-IFR)in this paper.Flame retardancy and thermal degradation behaviors of the composites modified by IFR and CS-IFR were characterized by Fourier Transform Infrared(FTIR),contact angle measurement,oxygen index(OI),vertical burning tests(UL-94),thermogravimetric analyer(TGA),and thermogravimetric analyzer coupled with Fourier transform infrared(TG-FTIR).It was found that 25.0 phr of IFR and 24.0 phr of CS-IFR could improve the LOI value of PP/CF composites to 28.3%and 28.9%,respectively.At the same time,a UL-94 V-0 rating was achieved.The experimental results show that the IFR and CS-IFR prepared could effectively improve the flame retardancy and thermostability of PP/CF composites,and they would greatly expand the application range of PP/CF composite materials.

关 键 词：carbon fiber POLYPROPYLENE intumescent flame retardant flame retardant modification composite materials 

分 类 号：TB332[一般工业技术—材料科学与工程]