硅烷改性氮化碳协同聚磷酸铵对环氧树脂阻燃与抑烟性能的影响OA
Effects of silane-modified carbon nitride synergized with ammonium polyphosphate on flame retardancy and smoke suppression of epoxy resins
利用γ-缩水甘油醚氧丙基三甲氧基硅烷(KH560)和聚多巴胺(PDA)在氮化碳纳米片(CNNS)表面形成亲水性薄膜进行包覆,制备了改性氮化碳(CN-KH560).将其与聚磷酸铵(APP)调控物料配比后添加到环氧树脂(EP)中,制备阻燃EP材料,并对其阻燃性能、抑烟性能和力学性能进行了探究.结果表明,当APP的添加量为9%(质量分数,下同),CN-KH560的添加量为1%时,EP/9APP/1CN-KH560在垂直燃烧测试中达到UL 94 V-0级,LOI值为40.2%;EP复合材料的总热释放量(THR)、总烟雾产生量(TSP)与纯EP相比分别降低了48.76%和53.5%;此外,EP/9 APP/1CN-KH560保持了原有优异的力学性能.
Silane-modified carbon nitride(CN-KH560)was prepared by coating carbon nitride nanosheets(CNNS)with a hydrophilic layer formed from γ-glycidyloxypropyltrimethoxysilane(KH560)and polydopamine.This modified filler was incorporated into epoxy resin(EP)in combination with ammonium polyphosphate(APP)at optimized ratios to fab-ricate flame-retardant EP composites.The resulting materials were evaluated for their flame retardancy,smoke suppres-sion,and mechanical properties.The results show that when 9 wt%APP and 1 wt%CN-KH560 were added,the EP/9 APP/1CN-KH560 composite achieved a UL 94 V-0 rating in the vertical burning test and exhibited a limiting oxygen in-dex of 40.2%.Compared with neat EP,the composite reduced total heat release and total smoke production by 48.76%and 53.5%,respectively.Moreover,the EP/9APP/1CN-KH560 composite retained the excellent mechani-cal properties of the base epoxy resin.
张宏健;孙佩箫;冷洋;王钊;李晓丽;许苗军;李斌
东北林业大学,化学化工与资源利用学院,黑龙江省阻燃材料分子设计与制备重点实验室,哈尔滨 150040东北林业大学,化学化工与资源利用学院,黑龙江省阻燃材料分子设计与制备重点实验室,哈尔滨 150040东北林业大学,化学化工与资源利用学院,黑龙江省阻燃材料分子设计与制备重点实验室,哈尔滨 150040国网黑龙江省电力有限公司哈尔滨供电公司,哈尔滨 150040东北林业大学,化学化工与资源利用学院,黑龙江省阻燃材料分子设计与制备重点实验室,哈尔滨 150040东北林业大学,化学化工与资源利用学院,黑龙江省阻燃材料分子设计与制备重点实验室,哈尔滨 150040东北林业大学,化学化工与资源利用学院,黑龙江省阻燃材料分子设计与制备重点实验室,哈尔滨 150040
化学化工
环氧树脂氮化碳聚磷酸铵阻燃性能
epoxy resincarbon nitrideammonium polyphosphateflame retardant property
《中国塑料》 2026 (3)
7-12,6
黑龙江省自然科学基金联合引导项目(LH2024B004)
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