In order to improve the mechanical properties and solvent resistance of silicone rubber (SR) without its sacrificing insulation, it is proposed to use molybdenum disulfide (MoS₂) nanosheets to reinforce the SR. The MoS₂ nanosheets were prepared by lithium ion intercalation method, and then the MoS₂ was modified with 3-mercaptopropyl trimethoxysilane (KH580) to improve the compatibility and interface interaction between MoS₂ nanosheets and the matrix. The structure and morphology of KH580–MoS₂ are characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The results show that KH580 is successfully grafted onto the surface of MoS₂ nanosheets. After adding 3 phr KH580–MoS₂ nanosheets, the tensile strength and solvent resistance of the SR are increased by 95% and 35%, and the thermal stability and solvent resistance are also improved. The interfacial interactions between KH580–MoS₂ nanosheets and SR matrix have been studied by thermodynamics, rheology and dielectric properties.

为了在不牺牲绝缘性的情况下提高硅橡胶 (SR)的机械性能和耐溶剂性，建议使用二硫化钼 (MoS ₂ ) 纳米片来增强 SR。采用锂离子嵌入法制备MoS ₂纳米片，然后用3-巯基丙基三甲氧基硅烷（KH580）对MoS ₂进行改性，以提高MoS ₂纳米片与基体之间的相容性和界面相互作用。KH580-MoS ₂的结构和形貌通过傅里叶变换红外光谱 (FTIR)、X 射线光电子能谱 (XPS)、透射电子显微镜 (TEM) 和扫描电子显微镜 (SEM)。结果表明KH580成功接枝到MoS ₂纳米片表面。添加3份KH580-MoS ₂纳米片后，SR的拉伸强度和耐溶剂性分别提高了95%和35%，热稳定性和耐溶剂性也得到了提高。KH580-MoS ₂纳米片和SR基体之间的界面相互作用已经通过热力学、流变学和介电特性进行了研究。