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Stress-Strain Behavior of the Electrospun Thermoplastic Polyurethane Elastomer Fiber Mats

机译:电纺热塑性聚氨酯弹性体纤维毡的应力应变行为

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摘要

Thermoplastic polyurethane elastomer (TPUe) fiber mats were successfully fabricated by electrospinning method.The TPUe fiber mats were subjected to a series of cycling tensile tests to determine the mechanical behavior.The electrospun TPUe fiber mats showed non-linear elastic and inelastic characteristics which may be due to slippage of crossed fiber (non-bonded or physical bonded structure) and breakage of the electrospun fibers at junctions (point-bonded or chemical bonding structure).The scanning electron microscopy (SEM) images demonstrated that the point-bonded structures of fiber mats played an important role in the load-bearing component as determined in loading-unloading component tests,which can be considered to have a force of restitution.
机译:通过电纺方法成功地制备了热塑性聚氨酯弹性体(TPUe)纤维毡,对该TPUe纤维毡进行了一系列的循环拉伸试验以确定其机械性能,电纺TPUe纤维毡表现出非线性弹性和非弹性特征,这可能是由于交叉纤维的滑移(非粘结或物理粘结的结构)和电纺纤维在接合处的断裂(点粘结或化学粘结的结构)。扫描电子显微镜(SEM)图像表明,纤维的点粘结结构垫在装卸组件测试中确定的承重组件中起着重要作用,可以认为它具有恢复力。

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