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首页> 外文期刊>Journal of Applied Polymer Science >Effects of equal-channel, multiple-angular extrusion on the physical and mechanical properties of glassy polymers
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Effects of equal-channel, multiple-angular extrusion on the physical and mechanical properties of glassy polymers

机译：等通道多角度挤压对玻璃态聚合物物理和机械性能的影响

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摘要

Through the examples of polycarbonate and poly(methyl acrylate), the evolution of the structure and properties of glassy polymers processed by equal-channel multiple-angular extrusion (ECMAE) were studied. It was demonstrated that ECMAE allowed the substantial improvement of the set of strain-strength characteristics of these materials, regardless of the direction of loading applied. With the use of the data from scanning electron microscopy, differential scanning calorimetry, and dilatometry, we found that the simultaneous growth in the strength, plasticity, and impact resistance was related to the formation of a net of biaxially oriented polymeric chains, the decrease in the free volume, and the reinforcement of intermolecular interaction. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42180.
机译：以聚碳酸酯和聚丙烯酸甲酯为例，研究了等通道多角挤压（ECMAE）加工的玻璃态聚合物的结构和性能演变。事实证明，无论施加载荷的方向如何，ECMAE都可以大大改善这些材料的应变强度特性。利用来自扫描电子显微镜，差示扫描量热法和膨胀计的数据，我们发现强度，可塑性和抗冲击性的同时增长与双轴取向聚合物链网的形成有关，自由体积和分子间相互作用的增强。 （c）2015 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，42180。

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