Preparation and property study of PMMA/ASA alloy
Polymethyl methacry late (PMMA)/ aciylonitrilestyrene-acrylate terpolymer (ASA) alloy was prepared via melt blending method. Effects of ASA melt flow rate and PMMA/ASA ratio on mechanical property of the alloy were studied. It showed that when the high melt flow rate ASA was used, alloys tensile strength and flexural strength were little different from using low melt flow rate ASA, while the impact strength was significantly higher than the latter. Differential scanning calorimetry (DSC) analysis showed that a glass transition (Tg) platform emerged in low melt flow rate ASA at 48.5℃, which represented the Tg of the interface phase formed between SAN grafted acrylate rubber particles and SAN matrix. Scanning electron microscope (SEM) experiment further showed that when low melt flow rate ASA was used, alloys cross section was smooth which showed the characteristics of brittle fracture.
PMMA ASA alloy Melt Flow Rate
GuoDong Tang Si Chen YanQin Shi Xu Wang
College of Chemical Engine ering and Materials Science, Zhejiang University of Technology,Hangzhou 310014, China
国际会议
合肥
英文
2383-2387
2011-09-23（万方平台首次上网日期，不代表论文的发表时间）