芳纶/阻燃环氧树脂复合材料的性能研究

复合材料科学与工程 ›› 2021, Vol. 0 ›› Issue (2): 72-76.

芳纶/阻燃环氧树脂复合材料的性能研究

刘吉凯^1,2, 潘利剑²

1.东华大学纺织学院,上海201620;
2.东华大学民用航空复合材料协同创新中心,上海201620

收稿日期:2020-04-20 出版日期:2021-02-28 发布日期:2021-03-10
通讯作者: 潘利剑(1980-),男,博士,副研究员,主要从事纤维增强树脂基复合材料方面的研究,xiaopanhrb@163.com。
作者简介:刘吉凯(1994-),男,硕士研究生,主要从事纤维增强树脂基复合材料相关工艺方面的研究。
基金资助:
国家商用飞机制造工程技术研究中心创新基金项目(COMAC-SFGS-2020-77)

STUDY ON PROPERTIES OF ARAMID/FLAME RETARDANT EPOXY RESIN COMPOSITES

LIU Ji-kai^1,2, PAN Li-jian^2*

1. College of Textiles, Donghua University, Shanghai 201620, China;
2. Donghua University Center for Civil Aviation Composites, Shanghai 201620, China

Received:2020-04-20 Online:2021-02-28 Published:2021-03-10

摘要/Abstract

摘要： 以对位芳纶增强无卤阻燃环氧树脂预浸料为原料,采用模压成型工艺制备了芳纶/环氧复合材料层合板。对不同成型压力条件下复合材料层合板的厚度、纤维体积含量以及力学性能进行了测试,用金相显微镜对不同成型压力条件下试样横截面的微观形貌进行表征,并对层合板的阻燃性能进行了测试。结果表明,在固化温度(160 ℃)和固化时间(90 min)恒定的情况下,当固化压力为0.8 MPa时,层合板厚度和纤维体积含量基本不再发生变化,层间结合紧密,综合力学性能最优,成型质量最好。层合板的极限氧指数为44.57%,垂直燃烧等级可达V-0级,耐热性能、阻燃性能优异。

关键词: 复合材料, 模压成型, 成型压力, 阻燃, 性能

Abstract: Kevlar/epoxy composite laminates were prepared by molding process using halogen free flame retardant epoxy preg reinforced with para aramid fiber. The thickness, fiber volume fraction and mechanical properties of the composite laminates under different forming pressures were measured, the cross section of the samples under different forming pressures was characterized by metallographic microscope, and the flame retardancy of the laminates was tested. The results show that the thickness and fiber volume fraction of laminates do not change when the curing temperature (160 ℃) and the curing time (90 min) are constant and the curing pressure is 0.8 MPa. The thickness of the laminate and the volume content of the fiber basically no longer change, the interlayer bonding is tight, the comprehensive mechanical properties are optimal, and the molding quality is the best. The laminate has a limiting oxygen index of 44.57%, a vertical combustion rating of V-0, and excellent heat resistance and flame retardancy.

Key words: composites, compression molding, molding pressure, flame retardant, property

中图分类号:

TB332

刘吉凯, 潘利剑. 芳纶/阻燃环氧树脂复合材料的性能研究[J]. 复合材料科学与工程, 2021, 0(2): 72-76.

LIU Ji-kai, PAN Li-jian. STUDY ON PROPERTIES OF ARAMID/FLAME RETARDANT EPOXY RESIN COMPOSITES[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(2): 72-76.

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