复合材料科学与工程 ›› 2015, Vol. 0 ›› Issue (5): 11-15.

• 基础研究 • 上一篇    下一篇

大型碳纤维结构件用真空导入环氧树脂的对比分析

贾智源*, 宋秋香, 关晓方   

  1. 中材科技风电叶片股份有限公司,北京 102101
  • 出版日期:2015-05-28 发布日期:2021-09-13
  • 作者简介:贾智源(1980-),男,博士,高级工程师,主要从事风电叶片原材料评测技术与低成本复合材料成型技术研究。
  • 基金资助:
    国家高技术研究发展计划(863计划)资助(2012AA03A205)

INVESTIGATION OF INFUSED EPOXY RESIN SYSTEM USED FOR LARGE SCALE CARBON FIBER REINFORCED PLASTICS

JIA Zhi-yuan*, SONG Qiu-xiang, GUAN Xiao-fang   

  1. Sinomatech Wind Power Blade Co., Ltd., Beijing 102101, China
  • Online:2015-05-28 Published:2021-09-13

摘要: 应用真空导入成型技术制作大型碳纤维复合材料结构件是大型化风电叶片制造技术的一个重要发展方向。由于碳纤维预成型体的可渗透性远远低于玻纤预成型体,因此具有特殊性能的环氧树脂是这一技术成功的关键。本文系统分析了三种专用环氧树脂体系的适用期、固化行为和力学性能,并与普通玻纤用环氧树脂进行了对比。分析结果表明,三种专用树脂的适用期长短不一,但都大于普通树脂;环氧酸酐体系固化过程中性能建立慢的特点,使其在大型结构件的应用中存在风险;预成型体预热有助于获得高纤维体积含量和力学性能更佳的碳纤维复合材料。

关键词: 碳纤维, 环氧树脂, 风电叶片, 真空导入

Abstract: Application of vacuum infusion molding technology for large-scalecarbon fiber composite material structure is an important developing direction of large-scale wind turbine blade manufacturing technology. Because the carbon fiber preform permeability is much lower than that of the glass fiber preform, epoxy resin with a special performance is a key for infusing large scale carbon fiber preform. This paper systematically studies pot life, curing behavior and mechanical properties of three kinds of typical epoxy resin system, and compared them with those of the common epoxy resin system for glass fiber. The analysis results show that, three kinds of special resins have pot life of varying lengths, but greater than the ordinary resin; building up properties of epoxy anhydride system is slow in the curing process, which is a risk in large-scale structure application; preform preheating contributes to the carbon fiber composite material which can obtain high fiber volume content and better mechanical properties.

Key words: carbon fiber, epoxy resin, wind turbine blade, vacuum infusion

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