基于环氧树脂基体的固化工艺和氢化羧基丁腈橡胶(HXNBR)的硫化特性。根据正交试验法研制出一组能够与环氧树脂在180℃发生共固化的粘弹性阻尼材料。将阻尼材料制成胶浆,探索使用刷涂法将玻璃纤维/环氧树脂预浸料制成带有阻尼薄膜的预浸料,最终根据平板硫化机固化工艺制备出共固化复合材料。通过层间剪切试验和微观结构分析,验证其配方的可行性。通过层间剪切试验,获得层间剪切强度随阻尼层厚度的变化曲线。利用傅里叶变换红外光谱和X射线光电子能谱,分析出HXNBR和环氧树脂之间存在化学作用。旨在探索HXNBR和环氧树脂的界面结合机理,提高界面结合性能。这为共固化阻尼复合材料的广泛应用奠定了基础。
In this paper,based on the curing process of epoxy resin matrix and vulcanization characteristics of hydrogenated carboxylated nitrile-butadiene rubber (HXNBR),a group of viscoelastic damping materials could be co-cured with epoxy resin at 180℃ by orthogonal test method.The damping material was made into mortar,and the glass fiber/epoxy resin prepreg was made into damping film prepreg by brush coating method.Finally,the co-curing composite material was prepared according to the curing process of plate vulcanizing machine.The feasibility of the formula was verified by interlaminar shear test and microstructure analysis.The variation curve of interlaminar shear strength with the thickness of damping layer was obtained by interlaminar shear test.The chemical interaction between HXNBR and epoxy resin was analyzed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy.The purpose of this paper was to explore the interfacial bonding mechanism of HXNBR and epoxy resin and improve the interfacial bonding properties,laying a foundation for the wide application of co-curing damping composites.
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