碳纤维和层状硅酸盐填充聚四氟乙烯复合材料的力学和摩擦学性能。
Mechanical and Tribological Properties of Polytetrafluoroethylene Composites with Carbon Fiber and Layered Silicate Fillers.
机构信息
Chemistry Department, Institute of Natural Sciences, North-Eastern Federal University, Yakutsk 677000, Russia.
V.A. Belyi Metal-Polymer Research Institute of National Academy of Sciences of Belarus, Gomel 246050, Belarus.
出版信息
Molecules. 2019 Jan 9;24(2):224. doi: 10.3390/molecules24020224.
Mixtures of layered silicates (vermiculite and kaolinite) and carbon fibers were investigated as filler materials for polytetrafluoroethylene. The supramolecular structure and the tribological and mechanical properties of the resulting polymer composite materials were evaluated. The yield strength and compressive strength of the polymer increased by 55% and 60%, respectively, when a mixed filler was used, which was attributed to supramolecular reinforcement of the composites. In addition, the wear resistance increased by 850 times when using vermiculite/kaolinite fillers, which was due to protection of the surface by the formation of hard tribofilms.
层状硅酸盐（蛭石和高岭土）和碳纤维的混合物被用作聚四氟乙烯的填充材料。研究了所得聚合物复合材料的超分子结构和摩擦学及力学性能。当使用混合填充剂时，聚合物的屈服强度和抗压强度分别提高了 55%和 60%，这归因于复合材料的超分子增强。此外，当使用蛭石/高岭土填充剂时，耐磨性提高了 850 倍，这是由于硬摩擦膜的形成对表面的保护。
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