复合材料科学与工程 ›› 2023, Vol. 0 ›› Issue (11): 44-48.DOI: 10.19936/j.cnki.2096-8000.20231128.006

• 基础研究 • 上一篇    下一篇

碳纤维复合材料的湿热老化模型研究

王威力, 魏程, 田晶   

  1. 哈尔滨玻璃钢研究院有限公司,哈尔滨 150028
  • 收稿日期:2022-07-06 出版日期:2023-11-28 发布日期:2023-12-14
  • 作者简介:王威力(1982—),女,硕士,高级工程师,主要从事树脂基复合材料性能方面的研究,flint.2361@163.com。

Research on hygrothermal ageing models of carbon fiber composites

WANG Weili, WEI Cheng, TIAN Jing   

  1. Harbin FRP Institute Co., Ltd., Harbin 150028, China
  • Received:2022-07-06 Online:2023-11-28 Published:2023-12-14

摘要: 在90%RH的高湿度环境下,选择40 ℃、60 ℃和80 ℃三个温度条件对碳纤维复合材料进行湿热加速老化试验,并对复合材料的动力学和力学性能进行测试。以扫描电镜(SEM)、力学性能、差热扫描(DSC)和红外(IR)测试结果为依据,选择了两种湿热加速老化模型,并计算确定了相应的参数,得到在90%RH的高湿度环境中,两种老化模型的具体计算公式。由计算结果可知,动力学模型较适用于推算不同温度条件下材料性能的变化情况,剩余强度模型适用于推算延长时间变量后的材料性能变化。

关键词: 碳纤维, 复合材料, 湿热老化, 老化模型

Abstract: Hygrothermal ageing test of carbon fiber composites were carried out with three temperature conditions of 40 ℃, 60 ℃ and 80 ℃ in 90%RH, and dynamic and mechanical properties of the composites were tested. Based on the results of SEM, mechanical characteristics,IR and DSC, two kinds of hygrothermal ageing models were selected, then formulas of two hygrothermal ageing models were proposed in 90%RH after parameters were calculated. The results show that the dynamic model should be chosen in the conditions with different temperatures, while the residual strength model should be chosen in the conditions with extended time variable.

Key words: carbon fiber, composite materials, hygrothermal ageing, aging model

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