论文部分内容阅读
用M-200型试验机在于摩擦条件下考察了硅线石（Sa）单独填充双马来酰亚胺（BMI）和硅线石与聚四氟乙烯（PTFE）共同填充BMI两类复合材料的摩擦学特性。结果表明，适量的Sa能降低BMI的摩擦系数（μ）和磨损量，但会在对偶件上造成划伤.PTFE与Sa共同填充BMI，不仅能进一步降低复合材料的μ和磨损量，而且能有效地抑制对偶件上的划伤.经过分析，Sa填充BMI的复合材料，对磨时其表面较高的粗糙度和Sa硬粒子发承载荷是降低μ和磨损量的主要原因.PTFE与Sa共同填充BMI，由于PTFE对Sa硬粒子的屏蔽作用，从而减少了对偶件上的划伤。
M-200 testing machine was used to investigate the effect of friction coefficient of silastite (Sa) filled with bismaleimide (BMI) and sillimanite (SML) and polytetrafluoroethylene (PTFE) Tribological properties. The results show that the appropriate amount of Sa can reduce the friction coefficient (μ) and wear of BMI, but it will cause scratches on the duals.PTFE and Sa co-filled BMI, not only can further reduce the μ and wear of the composites, Effectively inhibiting the scratches on the dual parts.After analysis, Sa filled BMI composite material, its surface roughness when grinding and Sa hard particle hair load is the main reason to reduce μ and wear volume.PTFE and Sa BMI co-filling, due to the shielding effect of PTFE on the Sa hard particles, thereby reducing the scratch on the dual.