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 par...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.展开更多
The results from dynamic viscoelastomer, TEM and others showed that the ABS/PVC blends are partially compatible system. The morphological structure of the blends is indeep dependence on the segment compatibility. The ...The results from dynamic viscoelastomer, TEM and others showed that the ABS/PVC blends are partially compatible system. The morphological structure of the blends is indeep dependence on the segment compatibility. The interface between the phases plays animportant role in mechanical property of the blends.展开更多
基金financially supported by Key Projects in the National Science & Technology Pillar Program (No.2007BAE 10B04)
文摘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.
文摘The results from dynamic viscoelastomer, TEM and others showed that the ABS/PVC blends are partially compatible system. The morphological structure of the blends is indeep dependence on the segment compatibility. The interface between the phases plays animportant role in mechanical property of the blends.
