真空辅助成型工艺环氧树脂体系化学流变特性研究

玻璃钢/复合材料 ›› 2016, Vol. 0 ›› Issue (11): 32-38.

真空辅助成型工艺环氧树脂体系化学流变特性研究

武佳男, 倪爱清^*, 张盛, 王继辉

武汉理工大学材料科学与工程学院,武汉430070

收稿日期:2016-05-13 出版日期:2016-11-30 发布日期:2016-11-30
通讯作者: 倪爱清(1975-),女,博士,副教授,主要从事复合材料设计及优化方面的研究,aqni21stcn@163.com。
作者简介:武佳男(1993-),男,硕士,主要从事聚合物基复合材料研究。

STUDY ON RHEOLOGICAL PROPERTIES OF EPOXY IN VARI PROCESS

WU Jia-nan, NI Ai-qing^*, ZHANG Sheng, WANG Ji-hui

College of Material Science and Engineering, Wu Han University of Technology, Wuhan 430070, China

Received:2016-05-13 Online:2016-11-30 Published:2016-11-30

摘要/Abstract

摘要： 通过实验研究了环氧树脂的化学流变特性,分别考察了双阿累尼乌斯黏度模型、工程黏度模型及联合黏度模型在真空辅助成型工艺专用环氧树脂(2511-1A)应用的有效性。通过比较分析发现,联合黏度模型更加准确地反映了该树脂的时间-温度-黏度的变化情况,进而预测了树脂的工艺时间窗口。根据时间-温度的变化关系,建立了非恒温下2511-1A环氧树脂体系的联合黏度模型,预测了在不同升温速率下黏度的变化,预测结果与实验结果较吻合,可进一步应用于热压工艺技术参数的选择。

关键词: 环氧树脂, 黏度模型, 恒温, 非恒温

Abstract: A constant temperature viscosity model of 2511-1A epoxy resin system is established in this study based on viscosity experiments. The dual Arrhenius rheological model, the engineering viscosity model and the combined engineering viscosity model are investigated for the application in the resin system, respectively. The results show that the combined engineering viscosity model reflects the dependence of the viscosity on temperature and time better, with the craft time window of resin predicted. According to the relationship between temperature and time, a variant temperature combined engineering viscosity model is established. The change in viscosity is predicted under different heating rates. Good agreement is achieved between the prediction and experimental results, which shows its potential application for the selection of technical parameters of hot pressing process.

Key words: epoxy, viscosity model, constant temperature, non-constant temperature

中图分类号:

TB332

武佳男, 倪爱清, 张盛, 王继辉. 真空辅助成型工艺环氧树脂体系化学流变特性研究[J]. 玻璃钢/复合材料, 2016, 0(11): 32-38.

WU Jia-nan, NI Ai-qing, ZHANG Sheng, WANG Ji-hui. STUDY ON RHEOLOGICAL PROPERTIES OF EPOXY IN VARI PROCESS[J]. Fiber Reinforced Plastics/Composites, 2016, 0(11): 32-38.

参考文献

[1] 李小兵, 孙占红, 曹正华. 真空辅助成型技术及其配套基体树脂研究进展[J]. 热固性树脂, 2006, 21(5): 39-43.
[2] 魏俊伟, 张用兵, 郭万涛. 真空辅助成型(VARI)工艺研究进展[J]. 材料开发与应用, 2010, 25(3): 99-105.
[3] 刘强, 赵龙, 曹正华. VARI工艺成型纤维增强树脂复合材料层合板厚度和纤维体积分数的影响因素[J]. 复合材料学报, 2013, 30(6): 90-95.
[4] Mijovic′ J, Lee C H. A comparison of chemorheological models for thermoset cure[J]. Journal of Applied Polymer Science, 1989, 38(12): 2155-2170.
[5] Perry M J, Wang T J, Ma Y. Resin transfer moulding of epoxy/graphite composites[C]//International SAMPE Technical Conference: 24th International SAMPE Metals and Metals Processing Conference. Canada: 1992.
[6] Ann B S, Macosko C W. Chemo rheology relations for epoxy-amine cross linking[J]. Journal of Polymer Science Part B Polymer Physics, 1990, 28(5): 691-709.
[7] Kang M K, Jung J J, Lee W I. Analysis of resin transfer moulding process with controlled multiple gates resin injection[J]. Composites Part A Applied Science & Manufacturing, 2000, 31(5): 407-422.
[8] 石凤, 段跃新, 曾秀妮, 等. 双酚A型环氧树脂/催化型固化剂体系的粘度模型[J]. 复合材料学报, 2005, 22(6): 72-79.
[9] Kiuna N, Lawrence C J, Fontana Q P V, et al. A model for resin viscosity during cure in the resin transfer moulding process[J]. Composites Part A Applied Science & Manufacturing, 2002, 33(11): 1497-1503.
[10] 杨金水. 厚截面碳纤维复合材料VIMP工艺制备与性能研究[D]. 长沙: 国防科学技术大学, 2012.
[11] 石凤, 段跃新, 曾秀妮, 等. 双酚A型环氧树脂/催化型固化剂体系的粘度模型[J]. 复合材料学报, 2005, 22(6): 72-79.
[12] 梁志勇, 段跃新, 林云, 等. EPON862环氧树脂体系化学流变特性研究[J]. 复合材料学报, 2001, 18(1): 16-19.
[13] 刘相, 谢凯, 洪晓斌. 利用时温等效原理修正的VARTM用双酚F型环氧树脂体系化学流变模型[J]. 复合材料学报, 2010, 27(1): 1-6.
[14] 杨金水, 肖加余, 江大志, 等. 真空导入模塑工艺树脂体系化学流变特性及流变模型[J]. 复合材料学报, 2009, 26(4): 1-7.
[15] 孙付宇, 李慧, 张彦飞, 等. 风电叶片VIMP用环氧树脂体系流变性能研究[J]. 工程塑料应用, 2011, 39(7): 56-59.