PVC热稳定剂三(月桂酸巯基乙酯)锑的合成  

Synthesis of Antimony Tris(thioethyl laurate) as Thermal Stabilizer for Poly(vinyl chloride)

作　　者：刘又年[1] 舒万艮[1] 曾冬铭[1] 王春江 

机构地区：[1]中南工业大学化学化工学院,长沙410083

出　　处：《合成树脂及塑料》2000年第6期16-18,36,共4页China Synthetic Resin and Plastics

基　　金：国家"九五"科技攻关计划基金 96-119-04-03-05

摘　　要：研究合成了一种新型聚氯乙烯(PVC)热稳定剂——三(月桂酸巯基乙酯)锑。实验结果表明:当反应物月桂酸与三(2-羟基乙硫醇)锑的用量比为1.1:1.0时,以钛酸丁酯作催化剂,二甲苯为带水剂,加热反应回流4h,得到三(月桂酸巯基乙酯)锑的产率为78.8％;并用热老化的方法测试了其对PVC的热稳定性。当三(月桂酸巯基乙酯)锑的添加量为2phr时,PVC树脂的热稳定时间为20min(200℃)。A novel type of thennal stabilizer - antimony tris(thioethyl laurate) was synthesized. The yield of antimony tris (thioethyl laurate) attained 78.8% under the conditions of reacting of lauric acid with antimony tris(2 -hydroxyethylthiolate) at the mole ratio n(Cn11H23COOH) : n(Sb(SCH2CHOH)3) = 1.1 : 1, adding 0.4% tetra-n - butyl titanate catalyst and xylene as azeotropic solvent, heating and refluxing for about 4 hours. The thennal stability of poly (vinyl chloride) (PVC) system incorporated with the stabilizer was measured by heat - aging oven test. The thennal stable time of the PVC lasted 20 minutes at 2001 when 2 phr(per hundred resin) was added into the resin.

关 键 词：热稳定剂 硫醇锑 合成 聚氯乙烯 酸醇比 催化剂 

分 类 号：TQ325[化学工程—合成树脂塑料工业]