为制备氢化羧基丁腈橡胶(HXNBR)与铜金属复合材料,设计了一种由粘合剂A(密胺型亚甲基给予体)、粘合剂rs(亚甲基接受体)、癸酸钴组成的粘合体系,模拟计算了443.15K(170℃)条件下HXNBR与粘合剂A和粘合剂rs反应的吉布斯自由能。通过力学性能和粘合性能测试,确定粘合体系最佳质量比为4∶3∶0.6。通过扫描电子显微镜、傅里叶变换红外光谱仪对HXNBR与铜金属复合材料的微观形貌、结构进行了表征,结果表明粘合体系的加入使层间形成大量的交联点,并且促进大量具有粘接作用的非化学计量硫化亚铜CuXS的产生,证实了在硫化过程中发生微观分子交联反应,使橡胶和金属紧密地结合,制备的复合材料粘接强度、力学性能优异。
In order to prepare hydrogenated carboxylated nitrile butadiene rubber (HXNBR)/copper metal composites,an adhesive system composed of adhesive A (melamine methylene donor),adhesive rs (methylene accepter),and cobalt neocaprate was designed.The Gibbs free energy of the reaction between HXNBR and adhesives A and rs was simulated and calculated under the condition of 423.15K (170℃).Through the tests of mechanical properties and bonding properties,the optimal mass ratio of the adhesive system was determined to be 4∶3∶0.6.The microstructure and structure of the HXNBr/copper metal composites were characterized by scanning electron microscopy and Fourier transform infrared spectrometer.The results showed that the addition of the adhesive system formed a large number of crosslinking points between the layers and promoted the production of a large amount of non-stoichiometric copper sulfide (CuXS) with bonding effect.It confirmed that the microscopic molecular cross-linking reaction occurred during the vulcanization process,enabling the rubber and metal to bond closely.The prepared composite material had excellent bonding strength and mechanical properties.
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基金资助
国家自然科学基金(52075280);山东省自然科学基金(ZR2019MEE088)
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