文献类型：期刊文献

中文题名：改性凹凸棒土复配TCP对软质PVC的协效阻燃及其机理

英文题名：Synergistic Flame Retardancy of Modified Concave Clay Compounded with Tricresyl Phosphate on Soft PVC and its Mechanism

作者：胡焕波[1,2];朱送伟[1];王懿[1];吴唯[1]

机构：[1]华东理工大学材料科学与工程学院,中德先进材料联合研究中心,上海200237;[2]裕克施乐塑料制品(太仓)有限公司,江苏苏州215400

年份：2022

卷号：50

期号：4

起止页码：64

中文期刊名：塑料工业

外文期刊名：China Plastics Industry

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

语种：中文

中文关键词：凹凸棒土;磷酸酯;软质聚氯乙烯;阻燃

外文关键词：Concave Tundumene;Phosphate;Soft Polyvinyl Chloride;Flame Retardant

摘要：为改善软质聚氯乙烯(软质PVC)制品的阻燃性能,选择阻燃增塑剂磷酸三甲苯酯(TCP)部分替代主增塑剂邻苯二甲酸二辛酯(DOP),与经复合改性的凹凸棒土(C-ATP)复配,制备了软质PVC,研究了C-ATP与TCP复配对软质PVC阻燃性能的影响及其机理。结果表明,单独使用C-ATP的软质PVC阻燃效果不佳。保持增塑剂总量50 phr不变,用15 phr TCP部分替代DOP,并与C-ATP复配,可有效提高软质PVC的阻燃性能。当C-ATP添加量为1~2 phr时,极限氧指数提高到28.6%,垂直燃烧时间降低到2.4 s,1.1 s,并使阻燃等级达到V-0级,且能基本保持软质PVC力学性能,还能进一步提高对增塑剂的抗迁移性。
In order to improve the flame retardancy of soft polyvinyl chloride(soft PVC)products,a flame retardant plasticizer trimethylene phosphate(TCP)was selected to partially replace the main plasticizer dioctyl phthalate(DOP),and was compounded with a compound-modified concave-tundumene(C-ATP)to prepare soft PVC.The effect of compounding C-ATP with TCP on the flame retardancy of soft PVC and its mechanism were investigated.The results show that the flame retardant effect of soft PVC using C-ATP alone is not good.Keeping the total amount of plasticizer 50 phr unchanged,partial replacement of DOP with 15 phr TCP and compounding with C-ATP can effectively improve the flame retardant properties of soft PVC.When the addition of C-ATP is 1~2 phr,the limiting oxygen index(LOI)increases to 28.6%,the vertical combustion time(t_(1)/t_(2))decreases to 2.4 s and 1.1 s,the flame retardant grade reaches V-0.At the same time,the mechanical properties of soft PVC can be basically maintained,and the migration resistance of soft PVC to plasticizer can be further improved.