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首页> 外文OA文献 >Tribological properties of PTFE filled plants-derived semi-aromatic polyamide (PA10T) and GF reinforced PTFE/PA10T composites
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Tribological properties of PTFE filled plants-derived semi-aromatic polyamide (PA10T) and GF reinforced PTFE/PA10T composites

机译：PTFE填充植物衍生的半芳族聚酰胺（PA10T）和GF增强的PTFE / PA10T复合材料的摩擦学性能

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For the purpose of developing the new engineering materials such as structural materials and tribomaterials based on plants-derived polymers, the tribological properties of polytetrafluoroethylene (PTFE) filled plants-derived semi-aromatic polyamide 10T (PA10T) composites and glass fiber (GF) reinforced PTFE/PA10T composites were investigated. PA10T is a kind of polyphthalamide (PPA, semi-aromatic polyamide) and biomass polymer made from plants-derived decamethylenediamine and coal-derived terephthalic acid. PTFE/PA10T and GF/PA10T/PTFE composites were melt-mixed by a twin screw extruder and injection-molded. Their mechanical properties such as tensile, Izod impact, and tribological properties were evaluated. Tribological properties were measured by a ring-on-plate type sliding wear tester under dry condition. Tribological properties of PA10T such as frictional coefficient, specific wear rate and limiting pv value improved with the addition of PTFE, although the mechanical properties such as tensile strength and tensile modulus decreased with PTFE. On the other hand, the frictional coefficient and specific wear rate of GF/PA10T/PTFE composites were higher than those of PTFE/PA10T composites, however limiting pv value and mechanical properties improved significantly with the filling of GF. It follows from these results that it may be possible to develop the new tribomaterials based on plants-derived polymer composites with sufficient balances between mechanical and tribological properties.
机译：为了开发新的工程材料，例如基于植物的聚合物的结构材料和摩擦材料，聚四氟乙烯（PTFE）填充的植物来源的半芳族聚酰胺10T（PA10T）复合材料和玻璃纤维（GF）增强的摩擦学性能研究了PTFE / PA10T复合材料。 PA10T是一种由植物衍生的十亚甲基二胺和煤衍生的对苯二甲酸制成的聚邻苯二甲酰胺（PPA，半芳族聚酰胺）和生物质聚合物。通过双螺杆挤出机将PTFE / PA10T和GF / PA10T / PTFE复合材料熔融混合，然后注塑成型。评估了它们的机械性能，如拉伸，悬臂梁式冲击和摩擦学性能。摩擦性能是在干燥条件下通过环板式滑动磨损测试仪测量的。添加PTFE可以改善PA10T的摩擦学性能，如摩擦系数，比磨损率和极限pv值，尽管机械性能（如拉伸强度和拉伸模量）随PTFE降低。另一方面，GF / PA10T / PTFE复合材料的摩擦系数和比磨损率高于PTFE / PA10T复合材料的摩擦系数和比磨损率，但是随着GF的填充，极限pv值和机械性能得到了显着改善。从这些结果可以看出，有可能开发基于植物衍生的聚合物复合材料的新型摩擦材料，在机械性能和摩擦性能之间取得足够的平衡。

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