超细硼酸锌对LDPE／IFR体系抑烟性能的影响  

Effect of Ultrafine Zinc Borate on Smoke Suppression Property of LDPE/IFR System

作　　者：吴志平[1] 胡云楚[1] 陈美琴[1] 舒万艮[2] 

机构地区：[1]中南林业科技大学材料学院,湖南长沙 410004 [2]中南大学化学化工学院,湖南长沙410083

出　　处：《塑料科技》2008年第7期56-60,共5页Plastics Science and Technology

基　　金：国家自然科学基金项目(30471358);中南林业科技大学高层次人才基金(07Y17)

摘　　要：用锥形量热法研究了超细硼酸锌对膨胀型阻燃低密度聚乙烯(LDPE/IFR)体系燃烧时发烟量和气体(CO、CO2)释放量的影响。结果表明:在超细硼酸锌引入LDPE/IFR体系后,烟产生速率的峰值从0.0427m2/s降低到0.0151m2/s,总烟释放量由1340.95降低为719.6,烟产生速率峰值出现的时间推后,证明了超细硼酸锌具有显著的抑烟作用,同时对LDPE/IFR体系燃烧时产生的CO和CO2也具有显著的抑制作用。The effects of ultrafine zinc borate on smoke suppression property and gas （CO, CO2） release of low density polyethylene modified by intumescent flame retardant （LDPEIIFR） were studied by means of cone calorimeter. The results show that： with the addition of untrafine zinc borate, the smoke production rate of LDPE/IFR system decreases from 0.0427 m2/s to 0.0151 m2/s, its total smoke release decreases from 1 340.95 to 719.6, the appearance of the peak of smoke production rate is delayed, which prove that ultrafine zinc borate has obvious effect on smoke suppression property; meanwhile, ultrafine zinc borate can reduce the generation of CO, CO2 during the combustion of LDPE/IFR system obviously.

关 键 词：超细硼酸锌 低密度聚乙烯 膨胀型阻燃剂 锥形量热法 抑烟 

分 类 号：TQ320.7[化学工程—合成树脂塑料工业]