复合材料科学与工程 ›› 2014, Vol. 0 ›› Issue (8): 31-34.

• 基础研究 • 上一篇    下一篇

玻纤/聚醚砜/环氧复合材料老化性能研究

孟玲宇1, 徐任信1*, 郑从伟2, 王钧1   

  1. 1.武汉理工大学材料科学与工程学院,武汉 430070;
    2.国家国防科技工业局协作配套中心,北京 100081
  • 收稿日期:2013-11-12 出版日期:2014-08-28 发布日期:2021-09-13
  • 通讯作者: 徐任信(1973-),男,博士,副教授,xurenxin2005@163.com。
  • 作者简介:孟玲宇(1988-),男,硕士研究生,主要从事树脂基复合材料的研究。本文作者还有杨小利1和杨海洋1

STUDY ON AGING PROPERTIES OF GLASS-FIBER REINFORCED PES/EPOXY COMPOSITES

MENG Ling-yu1, XU Ren-xin1*, ZHENG Cong-wei2, WANG Jun1   

  1. 1. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;
    2. Science and Technology Department,The Center of Coordination & Support of Sastind, Beijing 100081, China
  • Received:2013-11-12 Online:2014-08-28 Published:2021-09-13

摘要: 以聚醚砜/环氧树脂为基体的复合材料具有高韧性和高耐热等优点,人们对其耐温和抗冲击性能进行了较为系统的研究,但对其老化性能研究不多。本文分别以双氰胺、二氯苯基二甲脲为潜伏性固化剂和促进剂,采用湿法制备了无碱玻璃纤维/聚醚砜/胺酚基三官能度环氧树脂预浸料,通过模压工艺制备了复合材料,对复合材料试样进行了湿热和紫外光老化处理,研究了老化条件对试样力学性能的影响。结果表明,经过28d湿热老化处理后,试样的拉伸、弯曲、压缩和冲击强度保留率分别为68.3%、60.9%、72.7%和82.8%,经过28d紫外光老化处理后,试样的拉伸、弯曲、压缩和冲击强度保留率分别为83.9%、78.9%、82.5%和72.0%。

关键词: 环氧树脂, 聚醚砜, 玻璃纤维, 复合材料, 老化性能

Abstract: The composites of polyethersulfone (PES)/epoxy matrix have heat resistance and toughness. Many researches have been focused on the heat resistance and impact resistance, but researches on its aging properties are rare. This paper used dicyandiamide, dichlorophenyl dimethylurea as latent curing agent and accelerator. E-glass fiber reinforced PES/amine phenol tri-functional epoxy prepregs were prepared by wet process, and the composite materials were prepared by compression molding. Composite samples were tested by hydrothermal aging and UV aging. The changes of mechanical properties of composites after hydrothermal aging and UV aging test were studied. The results showed that after the hydrothermal aging treament of 28 days, the samples' tensile, bending, compressive and impact strength retention rate was 68.3%, 60.9%, 72.7% and 82.8%. After UV aging treament of 28 days, the samples'tensile, bending, compressive and impact strength retention rate was 83.9%,78.9%, 82.5% and 72.0%, respectively.

Key words: epoxy resin, polyethersulphone, glass fiber, composites, aging properties

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