FINITE ELEMENT SIMULATION FOR YIELD STRESS OF HARD POLY(VINYL CHLORIDE)/ACRYLONITRILE-BUTADIENE-STYRENE BLENDS AT DIFFERENT CROSSHEAD SPEEDS  

作　　者：宋义虎 郑强 

机构地区：[1]Key Laboratory of Macromolecular Synthesis and Functionalization of Ministry of Education,Department of Polymer Science and Engineering,Zhejiang University [2]National Engineering Research Center for Compounding and Modification of Polymeric Materials

出　　处：《Chinese Journal of Polymer Science》2011年第6期757-761,共5页高分子科学（英文版）

基　　金：financially supported by Key Projects in the National Science & Technology Pillar Program (No.2007BAE 10B04)

摘　　要：Hard poly（vinyl chloride） （PVC）/acrylonitrile-butadiene-styrene （ABS） blends were prepared using injection- molding and influence of crosshead speed on mechanical properties was examined. Based on morphology parameters obtained from transmission electron microscopy photography and the material parameters from true stress-strain curves of neat PVC and ABS, yield stresses of the blends at different crosshead speeds were simulated employing a two-dimensional nine-particle model based on the finite element analysis （FEA）. The FEA results were compared with the experimental yielding stress and the good agreement validated the simulation approach. The FEA approach allowed establishing a yielding criterion related to local yielding of the interstitial matrix between ABS particles.Hard poly（vinyl chloride） （PVC）/acrylonitrile-butadiene-styrene （ABS） blends were prepared using injection- molding and influence of crosshead speed on mechanical properties was examined. Based on morphology parameters obtained from transmission electron microscopy photography and the material parameters from true stress-strain curves of neat PVC and ABS, yield stresses of the blends at different crosshead speeds were simulated employing a two-dimensional nine-particle model based on the finite element analysis （FEA）. The FEA results were compared with the experimental yielding stress and the good agreement validated the simulation approach. The FEA approach allowed establishing a yielding criterion related to local yielding of the interstitial matrix between ABS particles.

关 键 词：Poly（vinyl chloride） （PVC） Acrylonitrile-butadiene-styrene （ABS） resin Deformation and fracture Simulation and modeling. 

分 类 号：O631.3[理学—高分子化学]