聚丙烯木塑复合材料的阻燃改性研究  

The Flame-retardant Modification of Polypropylene Wood Plastic Composite

作　　者：徐博仁 汪秀丽 赵泽永 赵悦英 李冲 李素坤 邓聪 王玉忠 XU Bo-ren;WANG Xiu-li;ZHAO Ze-yong;ZHAO Yue-ying;LI Chong;LI Su-kun;DENG Cong;WANG Yu-zhong(Center for Degradable and Flame-Retardant Polymeric Materials,National Engineering Laboratory of Eco-Friendly Polymeric Materials(Sichuan),College of Chemistry,Analytical and Testing Center,Sichuan University,Chengdu 610065,China;Shandong Xiaguang Industrial Co.,Ltd.,Jining 277600,China)

机构地区：[1]四川大学化学学院,环保型高分子材料国家地方联合工程实验室,分析测试中心,四川成都610065 [2]山东霞光集团有限公司,山东济宁277600

出　　处：《塑料工业》2020年第9期38-40,65,共4页China Plastics Industry

基　　金：山东省泰山产业领军人才工程(战略性新兴产业创新类)。

摘　　要：以硝酸镍和硝酸铝为主要原料,通过原位沉淀法在木粉(WF)表面构筑了层状双氢氧化物(LDH)阻燃层,获得WF@LDH。傅里叶变换红外光谱(FTIR)和X射线衍射(XRD)确定了该阻燃包覆层的化学组成和结构。将WF@LDH用于制备聚丙烯(PP)基木塑复合材料(WPC),并进行了阻燃性能的测试。垂直燃烧(UL94)及极限氧指数(LOI)测试结果表明,WF@LDH虽然在垂直燃烧测试中没有显著改善WPC的自熄性,所有测试样品UL94等级均无法分级,但其LOI随着LDH的增加呈上述趋势。结果表明,LDH可通过原位沉积的方法表面改性WF,且能赋予WF填充的PP复合材料一定的阻燃性。Layered double hydroxides(LDH)flame retardant was constructed at the surface of wood flour(WF)by in-situ precipitation with nickel nitrate and aluminum nitrate as the main raw materials,and the WF@LDH was obtained.The chemical composition and structure of the flame retardant coating were determined by Fourier transform infrared spectroscopy(FTIR)and X-ray diffraction(XRD).WF@LDH was used to prepare polypropylene-based wood plastic composite(WPC),and its flame retardancy was tested.The test results in vertical combustion(UL94)and limit oxygen index(LOI)show that there is no significant improvement in self-extinguishing property in vertical combustion test for WPC,but its LOI value increases with the increase of LDH.All the test results show that LDH can modify WF by in-situ precipitation and give WF filled PP composite flame retardancy.

关 键 词：聚丙烯 木塑材料 阻燃 层状双氢氧化物 燃烧性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]