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通过正交试验新研制出一种可以与玻璃纤维/BA9913环氧树脂预浸料低温共固化的高阻尼黏弹性材料,提出使用四氢呋喃(THF)作为溶剂,将该高阻尼材料制成黏弹性材料溶液。采用双面刷涂工艺,将玻璃纤维/BA9913环氧树脂复合材料制成带阻尼薄膜的预浸料,按照设计的铺层根据热压罐固化工艺制成嵌入式低温共固化高阻尼复合材料试件。模态试验和层间剪切试验验证了本文所提出制作工艺和黏弹性材料组分的有效性,试件一阶模态损耗因子可达7.2%。为嵌入式低温共固化高阻尼复合材料的广泛使用奠定了基础。
Orthogonal experiments were developed to produce a high-damping viscoelastic material co-cured with glass fiber / BA9913 epoxy resin prepreg. It was proposed to use tetrahydrofuran (THF) as a solvent to make the high damping material viscoelastic material Solution. Using double-sided brushing process, the glass fiber / BA9913 epoxy composite material with a damping film prepreg, according to the design of the curing process according to autoclave made embedded low-temperature co-curing high damping composite test Pieces. Modal test and interlaminar shear test verify the effectiveness of the manufacturing process and the viscoelastic material proposed in this paper. The first-order modal loss factor of the specimen can reach 7.2%. The embedded low temperature co-curing high damping composite materials laid the foundation for the extensive use.