MQ硅树脂对膨胀阻燃聚丙烯材料的阻燃协效作用  

Synergistic Effect of MQ Silicone on Intumescent Flame Retardant Polypropylene Material

作　　者：赵新宇 段凤华 赵宇通 ZHAO Xin-yu;DUAN Feng-hua;ZHAO Yu-tong(Inner Mongolia Vocational and Technical College of Communications,Chifeng 024000,China;College of Resources,Environment and Architectural Engineering,Chifeng University,Chifeng 024000,China)

机构地区：[1]内蒙古交通职业技术学院,内蒙古赤峰024000 [2]赤峰学院资源环境与建筑工程学院,内蒙古赤峰024000

出　　处：《塑料科技》2021年第12期59-62,共4页Plastics Science and Technology

摘　　要：以MQ硅树脂(MQ-SiR)作为协效剂,研究MQ-SiR对膨胀阻燃聚丙烯(PP/IFR)材料的协效作用。结果表明:MQ-SiR的加入量为5%,PP/IFR材料的氧指数为31.5%,1.6 mm样条通过V-0级。经过耐水性实验,PP/IFR/MQ-SiR(5%)仍然通过V-0级。PP/IFR/MQ-SiR(5%)在800℃的残炭率为12.1%,热释放速率(HRR)为179.2 kW/m^(2),总热释放量(THR)为3295.1 MJ/m^(2),材料的炭层最致密。这说明适量的MQ-SiR不仅可以提高材料的阻燃性能和耐水性能,还提高材料的热稳定性和成炭量。MQ-SiR was used as a synergistic agent to study the synergistic effect of MQ-SiR on intumescent flame retardant polypropylene(PP/IFR)materials.The results show that the addition amount of MQ-SiR is 5%,the oxygen index of PP/IFR material is 31.5%,and the 1.6 mm spline passes the V-0 level.After the water resistance experiment,PP/IFR/MQ-SiR(5%)still passes the V-0 level.The residual carbon rate of PP/IFR/MQ-SiR(5%)at 800℃is 12.1%,the heat release rate(HRR)is 179.2 kW/m^(2),and the total heat release(THR)is 3295.1 MJ/m^(2).The carbon layer of PP/IFR/MQSiR(5%)is the densest.The appropriate amount of MQ-SiR can not only improve the flame retardancy and water resistance of the material,but also improve the thermal stability and carbon content of the material.

关 键 词：MQ硅树脂 聚丙烯 阻燃协效 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ325.14[化学工程—合成树脂塑料工业]