中国塑料2024，Vol.38Issue(11)：1-7,7.DOI:10.19491/j.issn.1001-9278.2024.11.001
季戊四醇磷酸酯协同聚磷酸铵对环氧树脂阻燃抑烟性能的研究
Synergistic effect of 1-oxo-4-hydroxymethyl-2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane and ammonium polyphosphate on flame retardancy and smoke suppression of epoxy composites
摘要
Abstract
A series of epoxy composites with different loadings of 1-oxo-4-hydroxymethyl-2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane(PEPA)and ammonium polyphosphate(APP)and a fixed loading of montmorillonite(MMT)were prepared to enhance their flame-retardancy.The synergistic effect of APP and PEPA on the flame-retardant properties of the epoxy composites was evaluated by vertical burning experiment,limiting oxygen index,and cone calorimetry.A smoke density test was also carried out to demonstrate the collaborative smoke suppression effect of APP and PEPA.The experimental results indicated that when 15 wt％of APP/PEPA/MMT at a mass ratio 69/25/6 was incorporated into epoxy resin,the resultant epoxy composite obtained an improvement in limiting oxygen index up to 31.5％and reached the UL94 V-0 rating in the vertical burning test.Moreover,its peak heat release rate(HRR)and total smoke re-lease(TSR)decreased by 73.6％and 70％,respectively.Based on the HRR,peak HRR,and TSR results obtained from cone calorimetric measurements,PEPA,APP,and their compounds can generate good flame-retardant effective-ness in both gas phase and condensed phase.To understand the synergistic mechanisms about the flame-retardant and smoke suppression effects deeply,thermal gravimetric analysis coupled with Fourier-transform infrared spectroscopy,vi-sual observation,and scanning electron microscopy were conducted to characterize the gas and condensed phases of ep-oxy composites containing APP and PEPA flame retardants.关键词
环氧树脂/复合材料/阻燃剂/聚磷酸铵/季戊四醇磷酸酯Key words
epoxy resin/composite/flame retardancy/ammonium polyphosphate/1-oxo-4-hydroxymethyl-2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane分类
化学化工引用本文复制引用
冀美宇,赵逸哲,张文超,郭晓燕,杨荣杰..季戊四醇磷酸酯协同聚磷酸铵对环氧树脂阻燃抑烟性能的研究[J].中国塑料,2024,38(11):1-7,7.基金项目
国家自然科学基金(52373067) （52373067）
