Platinum loaded cyclomatrix polyphosphazene submicrospheres improve fire retardancy of epoxy with very low addition. (February 2019)

• Record Type: Journal Article
• Authors: Guo, Xiaodong; Geng, Xiaowei; Gao, Xiangdi; Zhang, Xin; Yang, Danqi; Xu, Jianzhong; Ma, Haiyun
• Is Part Of: Composites communications. Volume 11(2019)
• Page Start: 27
• Page End: 30
• Publication Date: 2019-02
• Subjects: Platinum -- Polyphosphazene -- Nanocomposites -- Catalytic carbonization
• DOI: 10.1016/j.coco.2018.10.004
• Languages: English
• ISSNs: 2452-2139

Abstract

Abstract: Platinum nanoparticle loaded polyphosphaziene submicrosphere (Pt-PPS) was synthesized via the reduction of chloroplatinic acid on the surface of PPS microspheres. Pt nanoparticles were dispersed uniformly with an average particle size of 2 nm from the SEM and TEM investigation. The cone calorimeter tests showed that a very low Pt incorporation (0.15%) can significantly improve the flame retardancy of epoxy resin (EP). The heat release rate (HRR) and total heat release (THR) were reduced by 40.2% and 23.2%, respectively. The improvement in flame retardancy is contributed by the catalytic carbonization effect of Pt synergizing with PPS submicrospheres. Highlights: Platinum nanoparticle loaded polyphosphaziene submicrosphere synthesized. Significant flame retardancy exhibited with very low addition (0.15%) of Platinum. Catalytic carbonization effect of Platinum improve fire retardancy of epoxy.