不同经编织物对预成型体定型工艺性及渗透特性的影响

doi:10.7527/S1000-6893.2017.421238

材料工程与机械制造

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不同经编织物对预成型体定型工艺性及渗透特性的影响

吴凯文¹, 杨晋², 李龙², 赵潇然², 刘刚³, 李韶亮⁴, 肇研²

1. 北京航空航天大学能源与动力工程学院, 北京 100083;
2. 北京航空航天大学材料科学与工程学院, 北京 100083;
3. 中航工业复合材料技术中心中航复合材料有限责任公司, 北京 100095;
4. 空军驻北京地区军事代表室, 北京 100038

收稿日期:2017-03-11 修回日期:2017-05-19 出版日期:2017-10-15 发布日期:2017-05-18
通讯作者: 肇研 E-mail:jennyzhaoyan@buaa.edu.cn

Influence of different warp knitted fabrics on processability and permeability of preform

WU Kaiwen¹, YANG Jin², LI Long², ZHAO Xiaoran², LIU Gang³, LI Shaoliang⁴, ZHAO Yan²

1. School of Energy and Power Engineering, Beihang University, Beijing 100083, China;
2. School of Materials Science and Engineering, Beihang University, Beijing 100083, China;
3. Beijing Institute of Aeronautical Materials, AVIC Composites Center, Beijing 100095, China;
4. Military Representative Office of Air Force Beijing, Beijing 100038, China

Received:2017-03-11 Revised:2017-05-19 Online:2017-10-15 Published:2017-05-18

摘要/Abstract

摘要：

针对单轴、双轴、四轴三种不同国产T300碳纤维经编织物，通过对其预成型体进行定型效果、压缩特性和渗透特性试验，表征在相同的定型工艺及定型剂用量下，不同经编织物对预成型体定型工艺性及渗透特性的影响。结果表明：在C型回弹试验及厚度回弹试验中，织物表面铺撒相同质量分数的定型剂，四轴经编织物预成型体厚度回弹约1.2%，C型回弹6°，定型效果最佳。此外，纤维束宽和束间距的变化会引起定型效果的差异。厚度压缩试验表明，四轴经编织物的压缩性能最佳。面内渗透率试验表明，铺撒定型剂后四轴经编织物面内渗透率增加约15%。证实了铺撒相同质量分数定型剂后，四轴经编织物的树脂传递模塑成型工艺（RTM）性能优异，定型效果最佳。

关键词: 经编织物, RTM, 定型剂, 预成型体, 复合材料

Abstract:

In the paper,uniaxial,biaxial and quadriaxial warp knitted fabrics made of domestic T300 carbon fibers-plain were studied,and tests on the settting effect,compressibility and permeability of the preforms were carried out to show the influence of different warp knitted fabrics on setting processability and permeability with the same setting process and amount of tackifer.It is found that during tests on springback of C-shape and thickness,the springback of the thickness of the quadriaxial fabric is about 1.2% and the springback of the C-shape of the quadriaxial fabric is 6°,quadriaxial fabric's shape-fixing performance is the best with the same mass fraction.Besides,the forming results changes with fiber beam width and beam spacing.The test of preform compressibility shows that the quadriaxial fabric is the best.The test of permeability of the preform in-plane shows that quadriaxial preform's in-plane permeability increases by about 15% after the scatteration of the resin.It is confirmed that the quadriaxial fabric has the best RTM process performance and shape-fixing performance after the same amount of resin is scattered on the warp knitted fabric.

Key words: warp knitted fabrics, RTM, tackifier, preform, composites

中图分类号:

V258⁺.3

吴凯文, 杨晋, 李龙, 赵潇然, 刘刚, 李韶亮, 肇研. 不同经编织物对预成型体定型工艺性及渗透特性的影响[J]. 航空学报, 2017, 38(10): 421238-421238.

WU Kaiwen, YANG Jin, LI Long, ZHAO Xiaoran, LIU Gang, LI Shaoliang, ZHAO Yan. Influence of different warp knitted fabrics on processability and permeability of preform[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017, 38(10): 421238-421238.

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E-mail：hkxb@buaa.edu.cn

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不同经编织物对预成型体定型工艺性及渗透特性的影响

Influence of different warp knitted fabrics on processability and permeability of preform

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