酚醛树脂分布对芳纶纸蜂窝力学性能的影响

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酚醛树脂分布对芳纶纸蜂窝力学性能的影响
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作者单位:中航复合材料有限责任公司
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中图分类号:V214
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Effect of Phenolic Resin Distribution on MechanicalProperties of Nomex Honeycomb

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摘要:

采用两种浸胶工艺制作树脂分布不同的3 种规格蜂窝芳纶纸蜂窝,对蜂窝进行力学性能测试和蜂

窝孔壁树脂分布微观观察,研究了酚醛树脂分布、蜂窝孔壁厚度对芳纶纸蜂窝力学性能的影响。结果表明:酚醛

树脂充分流淌后会使蜂窝的压缩强度提高8% ~40%,剪切强度下降9% ~21%;树脂在蜂窝节点端部形成胶柱是

蜂窝压缩性能提高的主要原因,但胶柱的形成会使蜂窝孔壁的平均厚度下降,导致蜂窝的剪切性能下降。

Abstract:

The study on the influencing factors of its mechanical properties is important for the improvement of

its mechanical properties. Three types of nomex honeycomb with different resin distribution were made through two

different gumming processes. Then mechanical properties testing on the honeycomb and micro observation on phenolic

resin distribution at honeycomb hole wall were performed to study the effect of resin distribution and wall thickness of

honeycomb holes on their mechanical properties. The results show that sufficient flow of the resin may increase the

compressive strength of the honeycomb by 8% to 40%, decrease the shear strength by 9% to 21%. The resin forms

gum pillars at the end of the honeycomb nodes, which is the main cause for the increase of the compressive strength.

The forming of gum pillars results in the decrease of the average thickness of honeycomb hole walls and thus leads to

the decline of the shear strength.

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刘杰罗玉清纪双英王萌.酚醛树脂分布对芳纶纸蜂窝力学性能的影响[J].宇航材料工艺,2016,46(2).

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在线发布日期: 2016-11-28
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