聚合物要为弹性体，必须满足哪些标准？
聚合物要为弹性体，必须满足哪些标准？
发布时间：2025-07-07 15:51:11
请在 下方输入 要搜索的题目：
推荐参考答案 (
由 快搜搜题库 官方老师解答 )
答案：【计分规则】: (1) It must not easily crystallize; elastomeric materials are amorphous, having molecular chains that are naturally coiled and kinked in the unstressed state. (2) Chain bond rotations must be relatively free in order for the coiled chains to readily respond to an applied force. (3) For elastomers to experience relatively large elastic deformations, the onset of plastic deformation must be delayed. (4) Finally, the elastomer must be above its glass transition temperature.
