在丁苯橡胶基体(SBR)中添加了不同份数的尼龙66(PA66)短纤维制成PA66/SBR复合材料,并对其力学性能、导热性能进行研究,使用扫描电子显微镜(SEM)观察拉伸试样的断裂形貌。结果表明:添加了10份PA66短纤维的PA66/SBR复合材料100%定伸应力和撕裂强度提升幅度最大,分别提高了264.7%和48.47%;添加4份PA66短纤维的PA66/SBR复合材料导热系数提高幅度最大,提高了11.69%。
Different PA66/SBR composites were prepared by adding different proportions of nylon 66 (PA66) short fiber to the styrene-butadiene rubber matrix (SBR),and its mechanical properties and thermal conductivity were studied.The fracture morphology of the tensile specimen was observed using a scanning electron microscope (SEM).Experimental results shown that the 100% tensile stress and tear strength of the composite with 10 parts of nylon 66 (PA66) short fiber increased the most,increased by 264.7% and 48.47% respectively.The thermal conductivity of the composite with 4 parts of PA66 short fiber increased the most,Increased by 11.69%.
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基金资助
国家自然科学基金(51763004)
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