交联聚苯乙烯/云母复合材料抗紫外老化性能研究

doi:10.11901/1005.3093.2015.414

材料研究学报

2016, Vol. 30

Issue (5): 336-342 DOI: 10.11901/1005.3093.2015.414

本期目录 | 过刊浏览

交联聚苯乙烯/云母复合材料抗紫外老化性能研究

付红梅¹, 朱光明¹(

), 刘文元², 李琳², 柯昌凤², 陈昌华²

1. 西北工业大学应用化学系西安 710129
2. 西北核技术研究所西安 710024

Performance of Ultraviolet Aging Resistance of Cross-linked Polystyrene/Mica Composites

FU Hongmei¹, ZHU Guangming^1,^*(

), LIU Wenyuan², LI Lin², KE Changfeng², CHEN Changhua²

1. Department of Applied Chemistry, Northwestern Polytechnical University, Xi’an 710129, China
2. Northwestern Institute of Nuclear Technology, Xi’an 710024, China

引用本文:

付红梅, 朱光明, 刘文元, 李琳, 柯昌凤, 陈昌华. 交联聚苯乙烯/云母复合材料抗紫外老化性能研究[J]. 材料研究学报, 2016, 30(5): 336-342.
Hongmei FU, Guangming ZHU, Wenyuan LIU, Lin LI, Changfeng KE, Changhua CHEN. Performance of Ultraviolet Aging Resistance of Cross-linked Polystyrene/Mica Composites[J]. Chinese Journal of Materials Research, 2016, 30(5): 336-342.

全文: PDF(886 KB) HTML

摘要:

通过紫外加速老化试验研究交联聚苯乙烯(CLPS)和CLPS/云母复合材料的抗紫外老化性能。从力学、分子结构及耐热性能等方面探讨云母对CLPS抗紫外老化性能的影响。结果表明, 随着辐照时间的延长, CLPS和CLPS/云母复合材料的拉伸强度、冲击强度和弯曲强度均呈下降趋势, CLPS/云母复合材料力学性能的保持率基本都高于CLPS, 并且云母含量越大力学性能保持率越高。与CLPS/云母复合材料相比, CLPS在紫外辐照18 d后红外谱图出现明显的C=O吸收峰。热重分析表明, 紫外老化后CLPS/云母复合材料的热稳定性能优于CLPS。研究结果证明掺杂云母对交联聚苯乙烯抗紫外老化性能有明显的提高。

关键词 ：复合材料, 交联聚苯乙烯, 云母, 抗紫外老化性能

Abstract：

The UV aging resistance of the cross-linked polystyrene(CLPS) and CLPS /mica composites were comparatively studied. The results showed that the tensile strength and impact strength of the CLPS and the CLPS/mica composites decreased with the increasing irradiation time, but the retention rate of the tensile strength and impact strength of the CLPS/mica composites were substantially higher than that of CLPS, the higher mica content, the higher retention ratio. Infrared analysis showed that the CLPS had significant C=O absorption peaks in IR spectrum after irradiation for 18 days. Thermal gravimetric analysis showed that the thermal property of the CLPS/mica were better than the pure CLPS after UV aging. It was proved that mica could improve UV aging properties of the cross-linked polystyrene.

Key words： composite cross-linked polystyrene mica ultraviolet aging resistance

收稿日期: 2015-07-20

ZTFLH:

TB332

作者简介: 本文联系人: 朱光明, 教授

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表1 CLPS和CLPS/云母复合材料力学性能数据表

图1 拉伸强度保持率与老化时间的关系

图2 冲击强度保持率与老化时间的关系

图3 弯曲强度保持率与老化时间的关系

图4 不同老化时间的红外谱图

图5 CLPS和CLPS/3%云母复合材料紫外可见光谱

图6 不同辐照时间紫外可见光谱

图7 不同老化时间的热重曲线

表2 不同紫外老化时间对CLPS和CLPS/云母复合材料热重性能的影响

图8 不同老化时间DSC曲线

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