文献类型：期刊文献

英文题名：Thermal stability of epoxidized soybean oil and its absorption and migration in poly(vinylchloride)

作者：Sun, Bin[1];Chaudhary, Bharat Indu[2];Shen, Chun-Yin[1];Mao, Di[1];Yuan, Dong-Ming[1];Dai, Gan-Ce[1];Li, Bin[3];Cogen, Jeffrey M.[2]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Dow Chem Co USA, Spring House, PA 19477 USA;[3]Dow Chem China Co Ltd, Shanghai 201203, Peoples R China

年份：2013

卷号：53

期号：8

起止页码：1645

外文期刊名：POLYMER ENGINEERING AND SCIENCE

收录：;EI(收录号：20133016529936);WOS:【SCI-EXPANDED(收录号:WOS:000321821700009)】；

语种：英文

外文关键词：Chlorine compounds - Plasticizers - Polyvinyl chlorides - Reinforced plastics - Solubility - Thermoanalysis - Thermodynamic stability

摘要：Thermal analyses of epoxidized soybean oil (ESO) were conducted and showed that it was stable up to temperatures as high as 240-260 degrees C in air-free environment. The solubility and transport characteristics of ESO in poly(vinylchloride) (PVC) were also investigated under various conditions. The absorption study showed that the resin had a void volume of approximate to 0.3 cm(3)/g. Furthermore, ESO was found to be sufficiently soluble in the PVC matrix to function as an effective plasticizer, with equilibrium solubility of 72 g/100 g PVC at 80 degrees C and 163 g/100 g PVC at 120 degrees C. The absorption of ESO in PVC grains was a three step process comprising induction, swelling, and saturation periods. Torque rheometer studies showed that higher mixer temperature and/or speed facilitated uptake of plasticizer in PVC and ultimate fusion. Migration studies of plasticized and stabilized PVC compositions showed no change in mass at 40 degrees C, but increasingly greater mass loss as the temperature was raised up to 120 degrees C. POLYM. ENG. SCI., 2013. (c) 2012 Society of Plastics Engineers