... 定向进化学说 orthogenesis 定向拉伸 orientation stretching 定向侵蚀 directed erosion ...
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Crystallization and orientation of PET films of different crystallization rates have been studied doing various techniques during stretching.
用多种方法对两个结晶速率不同的PET样品在拉伸过程中的结晶和取向进行了研究。
The orientation behaviour of molecular chains of hard elastic polypropylene(HEPP) film was investigated on the uniaxial stretching by polarized IR Vibration-Mechanical Spectroscopy.
本文用力学-振动光谱研究了硬弹性聚丙烯(HEPP)晶区和非晶区分子链在拉伸时取向的变化。
Thus, the stretching, orientation, heating and crystallization all changed in different parts of the film and this was one of the reasons for the property variations of the films produced.
拉伸速率是不断变化的等,使横拉过程各部位的拉伸、取向、受热、结晶等履历不尽相同。这是引起产品最终性能差异的重要原因之一。
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