复合材料科学与工程 ›› 2013, Vol. 0 ›› Issue (7): 7-10.

• 基础研究 • 上一篇    下一篇

碳纤维真空灌注成型用环氧树脂的流变特性分析

贾智源1,*, 宋秋香1, 王海珍1, 陈淳1   

  1. 1.中材科技风电叶片股份有限公司,北京 102101;
    2.中材科技股份有限公司,北京 100097
  • 收稿日期:2012-12-03 出版日期:2013-10-28 发布日期:2022-03-15
  • 作者简介:贾智源(1980-),男,博士,主要从事风电叶片原材料评测技术与复合材料成型工艺研究。本文作者还有薛忠民2
  • 基金资助:
    国家973项目(2010CB735802); 北京市科技计划(Z111110066611003)

RHEOLOGY ANALYSIS OF EPOXY RESIN SYSTEM USED FOR VACUUM INFUSION MOLDING OF CARBON FIBER

JIA Zhi-yuan1,*, SONG Qiu-xiang1, WANG Hai-zhen1, CHEN Chun1   

  1. 1. Sinomatech Wind Power Blade Co.,Ltd.,Beijing 102101,China;
    2. Sinoma Science&Technology Co.,Ltd.,Beijing 100097,China
  • Received:2012-12-03 Online:2013-10-28 Published:2022-03-15

摘要: 研究了一种用于碳纤维复合材料真空灌注成型的环氧树脂体系的流变特性,根据对等温粘度曲线的数据拟合分析,建立了粘度模型,并通过对模型参数的数据拟合推广到其他等温条件下使用。与常规玻纤用环氧树脂相比,该树脂具有显著增加的低粘度平台时间。流变模型的预测与实验结果具有良好的一致性。通过所建立的模型预测此种环氧树脂用于碳纤维真空灌注成型的最佳温度区间在50 ~ 70℃之间,为碳纤维复合材料结构件真空灌注成型成功奠定了基础。

关键词: 环氧树脂, 碳纤维, 真空灌注成型, 流变特性, 工艺窗口

Abstract: The rheological behavior of epoxy resin system for vacuum infusion molding of carbon fiber was studied. A viscosity model was established through simulating the obtained rheological data of the epoxy resin system by means of experiments. Compared with the normal epoxy system for glass fiber, this epoxy system has a significantly increased pot life. The predicted viscosity values of the established model are in good agreement with the experimental ones. According to the prediction of the rheological model of the epoxy resin, the optimal temperature for vacuum infusion molding of carbon fiber was in the range of 50 to 70 degrees. The study is important for the vacuum infusion molding of carbon fiber thick parts.

Key words: epoxy resin, carbon fiber, vacuum infusion, rheological behavior, processing window

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