氙灯加速老化对聚酯纤维/PVC柔性复合材料力学性能影响的研究

玻璃钢/复合材料 ›› 2017, Vol. 0 ›› Issue (9): 82-88.

氙灯加速老化对聚酯纤维/PVC柔性复合材料力学性能影响的研究

魏屈平¹,倪爱清^1*,张鸿²,杨秀礼³

1.武汉理工大学材料复合新技术国家重点实验室,武汉430070;
2.中交第二航务工程局有限公司,武汉430040;
3.中交第二航务工程局有限公司技术中心,武汉430040

收稿日期:2017-01-20 出版日期:2017-09-28 发布日期:2017-09-28
通讯作者: 倪爱清(1975-),女,博士,副研究员,主要从事复合材料力学方面的研究,aqni21stcn@163.com。
作者简介:魏屈平(1990-),女,硕士,主要从事复合材料耐老化性能方面的研究。

THE STUDY OF ACCELERATED AGING OF ARTIFICIAL XENON ARC LAMP ON THE BURSTING AND TEARING PROPERTIES OF POLYESTER FIBER/PVC FLEXIBLE COMPOSITE

WEI Qu-ping¹, NI Ai-qing^1*, ZHANG Hong² , YANG Xiu-li³

1.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;
2.CCCC Second Harbour Engineering Company Ltd., Wuhan 430040, China;
3.CCCC Second Harbour Engineering Co., Ltd., National Enterprise Technology Center, Wuhan 430040, China

Received:2017-01-20 Online:2017-09-28 Published:2017-09-28

摘要/Abstract

摘要： 聚酯纤维/PVC柔性复合材料由于多用于户外,易受阳光照射而老化,从而影响材料的力学性能。通过模拟大气环境较好的氙灯耐气候试验箱,考察了氙灯加速老化对聚酯纤维/PVC柔性复合材料顶破性能和撕裂性能的影响。采用CRT材料试验机,研究了聚酯纤维/PVC柔性复合材料的顶破性能和撕裂性能的变化,并比较了两种不同撕裂模式的破坏机理;采用FTIR研究了PVC涂层吸收峰和峰强的变化;采用SEM研究老化前后涂层表面的微观形貌。研究表明:氙灯人工气候老化下,聚酯纤维/PVC柔性复合材料的老化机理主要是羰基化合物和共轭双键的形成;柔性复合材料撕裂性能下降明显;不同撕裂模式对评价柔性复合材料差异较大。

关键词: 氙灯加速老化, 聚酯纤维/PVC柔性复合材料, 顶破性能, 撕裂性能

Abstract: Because of outdoor application, polyester fiber/PVC flexible composite materials are tend to age under solar radiation, and the mechanical properties will then be affected. Artificial xenon arc lamp gives a good simulation of outdoor environment, so the influence of accelerated aging by artificial xenon arc lamp on the bursting and tearing properties of polyester fiber/PVC flexible composite were investigated. The bursting and tearing properties of the aged and un-aged composites, as well as the failure mechanism, were investigated by static mechanical tests. The failure mechanism of two different tearing modes were compared. The change of the peak position and intensity were illustrated by FTIR, and the micro-morphology were examined by SEM. It is found out that carbonyl compound and conjugated double bond are mostly formed in the polyester fiber/PVC flexible composite accelerated aging by artificial xenon arc lamp. The tearing property of the flexible composite decreases significantly with aging time. Different tearing modes result in significant difference in tearing force.

Key words: artificial xenon arc lamp aging, polyester fiber/PVC flexible composite, bursting property, tearing property

中图分类号:

TB332

魏屈平,倪爱清,张鸿,杨秀礼. 氙灯加速老化对聚酯纤维/PVC柔性复合材料力学性能影响的研究[J]. 玻璃钢/复合材料, 2017, 0(9): 82-88.

WEI Qu-ping, NI Ai-qing, ZHANG Hong , YANG Xiu-li. THE STUDY OF ACCELERATED AGING OF ARTIFICIAL XENON ARC LAMP ON THE BURSTING AND TEARING PROPERTIES OF POLYESTER FIBER/PVC FLEXIBLE COMPOSITE[J]. Fiber Reinforced Plastics/Composites, 2017, 0(9): 82-88.

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