复合材料科学与工程 ›› 2021, Vol. 0 ›› Issue (10): 107-110.DOI: 10.19936/j.cnki.2096-8000.20211028.016

• 应用研究 • 上一篇    下一篇

制样基体树脂及固化张力对碳纤维复丝拉伸性能的影响

袁超, 邱启艳, 陈静   

  1. 中国航空制造技术研究院复材中心,北京101300
  • 收稿日期:2021-01-26 出版日期:2021-10-28 发布日期:2021-11-03
  • 作者简介:袁超(1987-),男,硕士,高级工程师,主要从事先进树脂基复合材料成型方面的研究,zjyuanchao@126.com。

Effect of matrix resin and curing tension on tensile properties of carbon fiber multifilament

YUAN Chao, QIU Qi-yan, CHEN Jing   

  1. AVIC Manufacturing Technology Institute, Beijing 101300, China
  • Received:2021-01-26 Online:2021-10-28 Published:2021-11-03

摘要: 针对碳纤维复丝拉伸性能测试的制样过程,通过采用不同基体树脂、施加不同丝束固化张力进行T300B、T700SC及T800H三种碳纤维复丝拉伸性能测试值影响因素研究。结果表明:碳纤维复丝拉伸性能的测试值与基体树脂的黏度相关不明显,而与基体树脂的断裂伸长率密切相关,在基体树脂断裂伸长率不超过测试纤维4倍的条件下,基体树脂的断裂伸长率越高,越有利于保证碳纤维复丝力学性能的测试值准确;适当增加碳纤维复丝制样过程中的纤维固化张力,能提高碳纤维复丝力学性能的测试值,碳纤维丝束越大,需要的固化张力越高。

关键词: 碳纤维, 复丝, 拉伸性能

Abstract: According to the sample preparation process of tensile properties test of carbon fiber multifilament, the influence factors of tensile properties test values of T300B, T700SC and T800H were studied by using different matrix resins and applying different tow curing tension. The results show that the test value of tensile properties of carbon fiber multifilament is not obviously related to the viscosity of matrix resin, but closely related to the elongation at break of matrix resin. Under the condition that the elongation at break of matrix resin does not exceed 4 times of the tested fiber, the higher the elongation at break of matrix resin is, the more accurate the test value of mechanical properties of carbon fiber multifilament is. The mechanical properties of carbon fiber multifilament can be improved by appropriately increasing the curing tension of carbon fiber during sample preparation. The larger the carbon fiber tow is, the higher the curing tension is required.

Key words: carbon fiber, multifilament, tensile property

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