四川大学学报（自然科学版）2025，Vol.62Issue(5)：1036-1042,7.DOI:10.19907/j.0490-6756.240148
兼具优良力学性能的新型阻燃聚碳酸酯
Novel fire-safe polycarbonate composite with good mechanical properties
摘要
Abstract
Polycarbonate(PC),a widely used engineering plastic,is valued for its excellent overall proper-ties.However,despite possessing intrinsic flame retardancy to some extent,PC exhibits flaming melt drip-ping and releases significant amounts of smoke and heat during combustion.These limitations hinder its appli-cation in high-end fields where stringent flame retardancy is required.Incorporating additive flame retardants into the polymer matrix effectively enhances flame resistance but often compromises mechanical properties.Here,we reported a novel flame-retardant PC achieved through the synergistic blending of sulfonate mono-mer(SK)and polydimethylsiloxane(PDMS).This approach leverages the high flame-retardant efficiency of SK and the exceptional flexibility of PDMS to improve flame resistance while preserving mechanical integrity.The resulting PC/PDMS/SK blend successfully achieved a UL-94 V-0 rating and exhibited a high limiting oxygen index(LOI)of 29.6％.Moreover,cone calorimetry tests demonstrated a significant reduction in heat and smoke release.Notably,PC/PDMS/SK maintained superior mechanical strength,highlighting its excel-lent performance.These findings present a promising strategy for the development of high-performance flame-retardant polycarbonates,addressing the critical trade-off between flame resistance and mechanical properties.关键词
聚碳酸酯/阻燃/低烟热/力学性能Key words
Polycarbonate/Flame-retardant/Low heat/smoke/Mechanical properties分类
化学化工引用本文复制引用
肖翔心,刘博文,王玉忠..兼具优良力学性能的新型阻燃聚碳酸酯[J].四川大学学报（自然科学版）,2025,62(5):1036-1042,7.基金项目
国家重点研发计划(2021YFB3700204) （2021YFB3700204）
