高弹态(rubbery state)是指链段运动但整个分子链不产生移动。此时受较小的力就可发生很大的形变(100~1000%),外力除去后形变可完全恢复,称为高弹形变。高弹态是高分子所特有的力学状态。
在此区间PET表现为高弹态,快速吹塑、冷却定形后成为透明的瓶子。
Within this range, a PET preform is in a high elastic state, and shall be shaped into a bottle with high transparency after quick blowing & cooling operation.
辐射或化学交联能在聚合物内部产生弹性网络结构,赋予材料高弹态及不熔不溶性。
Radiation or chemical cross-linking in the polymer network structure inside the elastic, giving material melting high-elastic state, and not insoluble.
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