溶胶-凝胶法制备纳米ZnO对无卤阻燃聚丙烯的协同作用研究  

Synergistic Action of Nanometer ZnO Prepared by Sol-Gel Method on Halogen Free Flame-Retarded Polypropylene

作　　者：周箭[1] 方晨鹏[1] 盛建松[1] 慕长江[1] 杨辉[1] 

机构地区：[1]浙江大学,浙江杭州310027

出　　处：《稀有金属材料与工程》2008年第A02期617-619,共3页Rare Metal Materials and Engineering

摘　　要：采用溶胶-凝胶(Sol-Gel)法和引入柠檬酸、硬脂酸、草酸3种不同的有机配体制备纳米ZnO粉体,将制备的ZnO粉体添加到无卤膨胀阻燃聚丙烯(IFR/PP)中,考察不同配体制备的纳米ZnO与无卤阻燃剂的协同作用对IFR/PP材料阻燃性能的影响。结果表明,硬脂酸配体Sol-Gel法制备的纳米ZnO粉体可显著增加IFR/PP材料高温残炭率、改善炭层致密度,从而提高其阻燃性能。The powders of nanometer ZnO were prepared by sol-gel method and bringing in 3 different organic coordination agents （stearic acid, citric acid, and oxalic acid）, and then the Intumescent flame retardant/Polypropylene （IFR/PP） were prepared by adding the nanometer ZnO. The effect of synergistic action between nanometer ZnO and Halogen free flame retardants on flame retardancy of IFR/PP materials was studied. The results show that nanometer ZnO prepared by stearic acid organic coordination agents sol-gel method improved compact degree of carbon layer, increased the high temperature carbon residues and the flame retardancy of IFR/PP.

关 键 词：无卤阻燃 溶胶-凝胶 纳米氧化锌 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]