Effect of additive phosphorus-nitrogen containing flame retardant on char formation and flame retardancy of epoxy resin

被引：112

作者：

Sun, Zhenzhong ^{[1
]}

Hou, Yanbei ^{[1
]}

Hu, Yuan ^{[1
]}

Hu, Weizhao ^{[1
]}

机构：

[1] Univ Sci & Technol China, State Key Lab Fire Sci, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2018年 / 214卷

基金：

中国国家自然科学基金;

关键词：

Epoxy resin; Flame retardant; Improvement on char formation; Enhanced physical properties; THERMAL-STABILITY; FIRE RETARDANCY; KINETICS; INTUMESCENCE; DEGRADATION; MECHANISM; POLYMERS; SYSTEMS; COPOLYMERIZATION; POLYMERIZATION;

D O I：

10.1016/j.matchemphys.2018.04.065

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel polymeric flame retardant poly (pentaerythritol phosphate phosphinic acyl piperazine) (PPAP) was synthesized successfully. The structure was confirmed by Fourier transform infrared spectra (FT-IR) and nuclear magnetic resonance spectra (NMR). The flame retardant property was characterized by limited oxygen index (LOI) and cone calorimetry test. Compared with 19% of epoxy resin, the LOI value of epoxy resin/PPAP composites (EP/PPAP) could reach high up to 35% when PPAP content was 20 wt % (EP-4) and the photographs of char residues demonstrated excellent char-forming ability of PPAP. The increasing char residues in thermogravimetric analysis (TGA) and analyses of real time FT-IR (RT-FTIR) showed improved thermal stabilities of EP/PPAP composites. The formation of enhanced stable char layer were proved by FT-IR, scanning electron microscopy (SEM) and Raman spectroscopy. The dynamic mechanical properties of EP/PPAP composites such as storage modulus and crosslinking density were substantially enhanced. (C) 2018 Published by Elsevier B.V.

引用

页码：154 / 164

页数：11

共 68 条

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