In the present paper,the fractographic features of PVC(Poylvinylchlqride) material subject to tension,bending and impact load have been researched by SEM.

• 对聚氯乙烯在拉伸、弯曲、冲击载荷作用下的断口形貌特征进行了观察分析,在此基础上探讨了聚氯乙烯的断裂过程及机制。