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首页> 外文期刊>Polymer engineering and science >Thermal aging effects on overall mechanical behavior of short glass fiber-reinforced polyphenylene sulfide composites
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Thermal aging effects on overall mechanical behavior of short glass fiber-reinforced polyphenylene sulfide composites

机译：热老化对短玻璃纤维增强聚苯硫醚复合材料的整体力学行为作用

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In this article, the overall mechanical properties of a short glass fiber-reinforced polyphenylene sulfide (PPS) composite were tested after oxidation at different temperatures (140, 160, 180, and 200 degrees C), with a maximum oxidation time of approximately 5,300 h. In aspect of thermal aging process, the oxidation rates in 200 and 180 degrees C are considerably harsher and faster than the case in 160 and 140 degrees C, according to the concentration evolution of [C=O]. In aspect of mechanical properties, for virgin samples, due to an excellent fiber-matrix adhesion, no progressive damage is developed. Moreover, the fatigue results of aged samples show that the fatigue lifetime of PPS composites decreases more and more obviously with the oxidation time increasing while no significant loss of stiffness is observed. In addition, both monotonic and cyclic loadings are basically driven by the PPS matrix deformation. In the end, the relationship between fatigue lifetime and concentration of [CO] is built and discussed. POLYM. ENG. SCI., 59:765-772, 2019. (c) 2018 Society of Plastics Engineers
机译：在本文中，在氧化在不同温度（140,160,180和200℃）的氧化后测试短玻璃纤维增​​强聚苯硫醚（PPS）复合材料的整体机械性能，最大氧化时间为约5,300小时。在热老化过程的方面，根据[C = O]的浓度演变，200和180摄氏度中的氧化速率比160和140℃的壳体相当苛刻。在机械性能的方面，对于原始样品，由于优异的纤维 - 基质粘附，不会产生渐进损伤。此外，老化样品的疲劳结果表明，PPS复合材料的疲劳寿命随着氧化时间的增加而越来越明显，同时没有观察到显着的刚度损失。此外，单调和循环负载均基本上由PPS矩阵变形驱动。最后，建立和讨论疲劳寿命与浓度与浓度之间的关系。聚合物。 eng。 SCI。，59：765-772,2019。（c）2018年塑料工程师协会

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