磺酸盐/滑石粉协同阻燃PC材料的性能研究
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摘要
以全氟丁基磺酸钾(KFBS)为主阻燃剂、滑石粉为协效阻燃剂对聚碳酸酯进行阻燃改性,研究了滑石粉粒径及用量对PC热稳定性、燃烧性能、流动性和力学性能的影响。结果表明,滑石粉能够通过形成完善的炭层抑制燃烧滴落使PC的阻燃等级由V-2变为V-0。同时,PC中添加滑石粉能够提高热稳定性,添加5%的滑石粉,热变形温度上升5℃。此外,加入滑石粉能够提高阻燃PC的刚性,但会使韧性明显下降。
In this paper,potassium perfluoro butane sulfonate( KFBS) was used as main flame retardant and talc powder was used as synergistic flame retardant to modify polycarbonate. The effects of talc particle size and dosage on the thermal stability,combustion,fluidity and mechanical properties of PC were studied. The results show that the talc could suppress the combustion dripping by forming a carbon layer on the surface of PC,and the flame retardant level of PC is changed from V-2 to V-0. Meanwhile,the thermal stability of PC could be improved by the addition of talc,and the heat deflection temperature of PC could be increased by 5 ℃,when the addition of talc is 5%. In addition,the rigidity of the flame retardant PC is increased,however the toughness is significantly reduced by the addition of talc powder.
In this paper,potassium perfluoro butane sulfonate( KFBS) was used as main flame retardant and talc powder was used as synergistic flame retardant to modify polycarbonate. The effects of talc particle size and dosage on the thermal stability,combustion,fluidity and mechanical properties of PC were studied. The results show that the talc could suppress the combustion dripping by forming a carbon layer on the surface of PC,and the flame retardant level of PC is changed from V-2 to V-0. Meanwhile,the thermal stability of PC could be improved by the addition of talc,and the heat deflection temperature of PC could be increased by 5 ℃,when the addition of talc is 5%. In addition,the rigidity of the flame retardant PC is increased,however the toughness is significantly reduced by the addition of talc powder.
引文
[1]张桂华,牛建洲,郭兴田.我国聚碳酸酯生产及市场应用前景分析[J].化学工业,2018,36(5):45-51,56.
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[8]HU Z,CHEN L,ZHAO B,et al.A novel efficient halogenfree flame retardant system for polycarbonate[J].Polym Degrad Stab,2011,96(3):320-327.
[9]马艳.无机阻燃剂研究进展[J].化工时刊,2014,28(4):33-34.
[10]LIU S M,HUA Y,ZHOU Y S,et al.Study on flame-retardant mechanism of polycarbonate containing sulfonate-silsesquioxane-fluoro retardants by TGA and FTIR[J].Polym Degrad Stab,2006,91(8):1808-1814.
[11]吴鸿飞.聚合物/层状硅酸盐纳米复合材料的阻燃性能研究进展[J].广州化工,2015,43(23):59-61.
[12]岑茵,吴俊,王培涛.薄壁阻燃聚碳酸酯的研究[J].塑料工业,2018,46(4):151-155.
[2]杨泽铭,崔小明.我国聚碳酸酯的市场分析[J].精细与专用化学品,2017,25(2):14-16.
[3]刺守亮.1991~2015年全国一次死亡30人以上的火灾案例统计分析[J].智库时代,2018(23):123-124.
[4]陈玲红,欧宗和.聚碳酸酯用环保型无卤阻燃剂的研究进展[J].上海塑料,2009(4):14-16.
[5]彭民乐,岑茵,何继辉,等.聚碳酸酯无卤阻燃剂阻燃机理及其发展趋势[J].中国塑料,2017,31(3):1-6.
[6]XIAO Y Q.Development of sulfonate flame retardants for polycarbonate[J].Plast Addit,2007(3):1-4.
[7]LIU C C,YAO Q.Design and synthesis of efficient phosphorus flame retardant for polycarbonate[J].Ind Eng Chem Res,2017,56(31):8789-8796.
[8]HU Z,CHEN L,ZHAO B,et al.A novel efficient halogenfree flame retardant system for polycarbonate[J].Polym Degrad Stab,2011,96(3):320-327.
[9]马艳.无机阻燃剂研究进展[J].化工时刊,2014,28(4):33-34.
[10]LIU S M,HUA Y,ZHOU Y S,et al.Study on flame-retardant mechanism of polycarbonate containing sulfonate-silsesquioxane-fluoro retardants by TGA and FTIR[J].Polym Degrad Stab,2006,91(8):1808-1814.
[11]吴鸿飞.聚合物/层状硅酸盐纳米复合材料的阻燃性能研究进展[J].广州化工,2015,43(23):59-61.
[12]岑茵,吴俊,王培涛.薄壁阻燃聚碳酸酯的研究[J].塑料工业,2018,46(4):151-155.