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通过端羧基丁腈液态橡胶(Carboxyl Terminated Butadiene Acrylonitrile,CTBN)协同纳米Al2O3、SiO2颗粒与微米MoS2颗粒共混改性环氧树脂,制备了双组分的耐磨高分子合金修补剂材料。采用拉伸、摩擦磨损等试验及SEM等方法测试和分析了该高分子合金修补剂的拉伸强度、显微硬度等基本性能及摩擦学性能,并对其耐磨减摩机理进行了分析。结果表明:该材料的拉伸强度为42.3MPa,拉伸剪切强度为13.8MPa,显微硬度为231.1MPa,摩擦因数为0.17,耐磨性比LY12铝合金提高了50%。
A two-component abrasion resistant polymer alloy repair material was prepared by blending nano-Al2O3, SiO2 particles and micron MoS2 particles with modified epoxy resin by using Carboxyl Terminated Butadiene Acrylonitrile (CTBN). The tensile properties, microhardness and other basic properties and tribological properties of the polymer alloy repair agent were tested and analyzed by means of tensile test, friction and wear test and SEM test. The wear resistance and friction reduction mechanism were also analyzed. The results show that the tensile strength of the material is 42.3MPa, the tensile shear strength is 13.8MPa, the microhardness is 231.1MPa, the friction coefficient is 0.17 and the wear resistance is 50% higher than that of LY12 aluminum alloy.