https://www.baidu.com/s?wd=%E6%8B%89%E4%BC%B8%E5%BC%BA%E5%BA%A6&tn=440
39180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1YLmvNhnHmvm1bdrAfk
nHPb0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCp
yw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EnW0Ln16Ln1fdnHRkP1bzn16zr0拉伸强度反映了这
一物体刚性，同时也反映了这一物体的韧性。一般来说，https://www.baidu.com/s?wd=%E6%8B%89%E4%
BC%B8%E5%BC%BA%E5%BA%A6&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIH
ckPjm4nH00T1YLmvNhnHmvm1bdrAfknHPb0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn
4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EnW0L
n16Ln1fdnHRkP1bzn16zr0拉伸强度越大，表示这一物体（比如中碳钢）的抗拉伸的强度越大，（弹性越大），对于脆性材料
来说，虽然材料非常坚硬，https://www.baidu.com/s?wd=%E6%8B%89%E4%BC%B8%E5%BC%B
A%E5%BA%A6&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y
LmvNhnHmvm1bdrAfknHPb0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6Kd
ThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EnW0Ln16Ln1fdnHRkP
1bzn16zr0拉伸强度都极其低，所以我们不会用铸铁等脆性材料来承受拉伸力。主要是冲击强度，包括简支梁和悬臂梁冲击强度，根据不
同物料，可选择有缺口或无缺口测量方式！塑料韧性的高低对应着物性表的哪个指数可参考Charpy无缺口冲击强度，Izod带缺口冲击强度
，单位kJ/m2，一般https://www.baidu.com/s?wd=%E5%B7%A5%E7%A8%8B%E5%A1%91
%E6%96%99&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y3
nvR3nhR4nWb4PHTYuW0k0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdT
hsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EnHnsPHfLPWDs工程塑料中韧
性较好的是PC和POM-H，https://www.baidu.com/s?wd=%E7%89%B9%E7%A7%8D%E5%A1
%91%E6%96%99&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T
1Y3nvR3nhR4nWb4PHTYuW0k0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6
KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EnHnsPHfLPWDs特种塑
料中韧性较好的有PVDF、PAI和PPSU。当然测试标准不一样，具体数值会有差别，所以要在同一个测试方式下比较。 |
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