石墨对E-51环氧树脂体系微波固化速率的影响

陈云雷; 李勇; 耿杰; 肖军; 周克印

doi:10.7527/S1000-6893.2013.0369

航空学报 >

2013 , Vol. 34 >Issue 12: 2833 - 2840

DOI: https://doi.org/10.7527/S1000-6893.2013.0369

材料工程与机械制造

石墨对E-51环氧树脂体系微波固化速率的影响

陈云雷 ,
李勇 ,
耿杰 ,
肖军 ,
周克印

展开

1. 南京航空航天大学材料科学与技术学院, 江苏南京 210016;
2. 南京航空航天大学航空宇航学院, 江苏南京 210016

陈云雷女，硕士研究生。主要研究方向：复合材料成型加工。Tel：025-84892980E-mail：yayayunlei@126.com；李勇男，博士，教授，博士生导师。主要研究方向：先进复合材料自动化成形工艺及其装备、先进复合材料三维增强成形及性能。Tel：025-84892980E-mail：lyong@nuaa.edu.cn

收稿日期: 2013-03-12

修回日期: 2013-08-22

网络出版日期: 2013-08-26

基金资助

国家科技支撑计划（2012BAA01B02）

收起

Investigation of the Effect of Graphite on Microwave Curing Rates of E-51 Epoxy Resin Systems

CHEN Yunlei ,
LI Yong ,
GENG Jie ,
XIAO Jun ,
ZHOU Keyin

Expand

1. College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Received date: 2013-03-12

Revised date: 2013-08-22

Online published: 2013-08-26

Fold

摘要

为了探索微波吸收剂石墨对双酚A型环氧E-51树脂体系微波固化速率的影响，选用环氧E-51+甲基四氢邻苯二甲酸酐（MeTHPA）、E-51+650低分子聚酰胺和E-51+二氨基二苯甲烷（DDM）为树脂体系，采用经改造的微波加热设备为微波源，利用差示扫描量热法（DSC）测试树脂体系的固化度，SEM表征石墨在树脂基体中的分散效果，分别研究了石墨的添加量和分散方式对树脂体系微波固化反应速率的影响。研究结果表明：随着微波吸收剂添加量的增加，3种环氧树脂体系的微波固化反应速率均呈现出先迅速增加后趋于平缓的变化趋势，区别在于吸收剂的添加量范围不同；超声分散能进一步加速环氧E-51+MeTHPA树脂体系的微波固化反应；吸收剂能提高树脂体系的吸波能力进而加速其微波固化反应。

关键词： 微波固化; 石墨; 环氧树脂; 超声分散; 复合材料

本文引用格式

陈云雷 , 李勇 , 耿杰 , 肖军 , 周克印 . 石墨对E-51环氧树脂体系微波固化速率的影响[J]. 航空学报, 2013 , 34(12) : 2833 -2840 . DOI: 10.7527/S1000-6893.2013.0369

Abstract

The effect of the amounts and dispersion methods of microwave-absorber graphite on microwave curing rates are studied for the E-51 systems cured with MeTHPA, 650 and DDM agents, respectively. The modified commercial microwave oven is employed as the radiation source, and the differential canning calorimetry (DSC) as the measure method for curing degree. The dispersion of graphite in the resin matrix is characterized by means of SEM. The results show that the curing rates of all epoxy resin systems are raised with the addition of the graphite power, which increas very fast at lower additive amounts and tend to be slight at higher ones, while the relations between the acceleration extent with the doping amount of the graphite power of the three systems are different. And the microwave curing reaction can be accelerated further by taking the ultrasonic dispersion as the mixing process. Importantly, the mechanism is described as that the addition of microwave-absorber can improve the microwave absorbing performance of resin matrix so that the microwave curing reaction is accelerated.

Key words： microwave curing; graphite; epoxy resin; ultrasonic dispersion; composites

参考文献

[1] Chen X B. The development and applications of advanced polymer matrix composites. Journal of Aeronautical Materials, 2003, 23(Sup.1): 198-204. (in Chinese) 陈祥宝. 先进树脂基复合材料的发展和应用. 航空材料学报, 2003, 23(增刊1): 198-204.
[2] Liu D J, Chen Y L. Application of advanced polymer matrix composites in aviation industry. Material Engineering, 2008(Sup.1): 194-198. (in Chinese) 刘代军, 陈亚莉. 先进树脂基复合材料在航空工业中的应用. 材料工程, 2008(增刊1): 194-198.
[3] Du S Y. Advanced composite materials and aerospace engineering. Acta Materiae Compositae Sinica, 2007, 24(1): 1-12. (in Chinese) 杜善义. 先进复合材料与航空航天. 复合材料学报, 2007, 24(1): 1-12.
[4] Dai Y C, Zheng L S, Chen Y S. The development of rapid bonding repair machine which based on microwave-curing technique. Development & Innovation of Machinery, 2011, 24(4): 27. (in Chinese) 代永朝, 郑立胜, 陈宜参. 基于微波固化技术的快速胶接修复机的研制. 机电产品开发与创新, 2011, 24(4): 27.
[5] Chen S J. Composite structure repair guide. Beijng: Aviation Industry Press, 2001: 73-74. (in Chinese) 陈绍杰. 复合材料结构修理指南. 北京: 航空工业出版社, 2001: 73-74.
[6] Zeng J F. Research and application of microwave in composite. Journal of Solid Rocket Technology, 1998, 21(3): 58-63. (in Chinese) 曾金芳. 微波在复合材料领域中的研究与应用. 固体火箭技术, 1998, 21(3): 58-63.
[7] Thostenson E T, Chou T W. Microwave processing: fundamentals and applications. Composites Part A: Applied Science and Manufacturing, 1999, 30(9): 1055-1071.
[8] Boey F Y C, Yap B H, Chia L. Microwave curing of epoxy-amine system-effect of curing agent on the rate enhancement. Polymer Testing, 1999, 18(2): 93-109.
[9] Fu B, Hawley M C. Comparative study of continuous-power and pulsed-power microwave curing of epoxy resins. Polymer Engineering & Science, 2000, 40(10): 2133-2143.
[10] Liu X Q, Wang Y S. The effect of aldehyde/amine molar ratio on the preparation and properties of PAM/MC nylon composites through in-situ polymerization. Polymer Materials Science and Engineering, 2004, 20(3): 111-113. (in Chinese) 刘学清, 王源升. 微波固化环氧树脂E44/DDM的热性能及膨胀性能. 高分子材料科学与工程, 2004, 20(3): 111-113.
[11] Thostenson E F, Chou T W. Microwave and conventional curing of thick-section thermoset composite laminates: Experiment and simulation. Polymer Composites, 2001, 22(2): 197-212.
[12] Zhou W Y, Qi S H, Li G X, et al. Microwave curing epoxy and epoxy matrix composites. Journal of Materials Science & Engineering, 2005, 23(4): 625-628. (in Chinese) 周文英, 齐暑华, 李国新, 等. 环氧树脂及其复合材料微波固化研究. 材料科学与工程学报, 2005, 23(4): 625-628.
[13] Zhou S, Hawley M C. A study of effect of conducting additives on microwave heating and curing rates of epoxy. Long Beach: Society for the Advancement of Material and Process Engineering, 2001.
[14] Yalagadda P K D V. Study on microwave dielectric properties of epoxy resin mixtures used for rapid product development. Acta Metallurgica Sinica, 2001, 14(1): 1-12.
[15] Zhou S, Hawley M C. A study of microwave reaction rate enhancement effect in adhesive bonding of polymers and composites. Composite Structures, 2003, 61(4): 303-309.
[16] Ren J, Lu S C. Ultrafine powder dispersed in the liquid phase. China Powder Industry, 2006(5): 13-17. (in Chinese) 任俊, 卢寿慈. 超细粉体在液相中的分散. 中国粉体工业, 2006(5): 13-17.
[17] Schmid C, Sbaizero O. Ultrasonic homogenization of equivolumetric AI₂O₃/ZrO₂ suspensions. Materials Science, 2000, 35(5): 1213-1217.

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献