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本文研究了加载速率对PVC拉仲、弯曲性能的影响规律及试验温度对PVC冲击强度的影响。探讨了PVC在外加载荷作用下的断裂过程和高速拉伸的“应力松驰”现象的产生机制。
In this paper, the influence of loading rate on the tensile properties and bending properties of PVC and the influence of test temperature on the impact strength of PVC were studied. The mechanism of the “stress relaxation” phenomenon of the fracture process and the high-speed drawing of PVC under external load was discussed.