聚合物的应力松弛过程主要表现为高分子链段的运动和重排以及键角的改变。
Polymer stress relaxation process is mainly manifested in the polymer chain segment of the movement and rearrangement, as well as bond Angle changes.
适当地降低高温下纤维的张力，为高分子链段的运动提供了活动空间，有利于高弹形变的松弛。
Reducing the tension upon the fiber under high temperature to provide enough movement space for polyester segments, which is beneficial to the relaxation of high elastic strain.
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