当前位置：
X-MOL 学术
›
Polym. Compos.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Tribological behavior and mechanism of Mo2Ti2C3/polyimide composite films under dry friction condition
Polymer Composites ( IF 4.8 ) Pub Date : 2024-03-14 , DOI: 10.1002/pc.28317 Xinrui Wang 1 , Guojing Chen 1 , Yufei Huang 1 , Zhenqian Ma 1 , Xuan Yin 2 , Chunpeng Chai 1
Polymer Composites ( IF 4.8 ) Pub Date : 2024-03-14 , DOI: 10.1002/pc.28317 Xinrui Wang 1 , Guojing Chen 1 , Yufei Huang 1 , Zhenqian Ma 1 , Xuan Yin 2 , Chunpeng Chai 1
Affiliation
|
Polyimide (PI) has good mechanical properties and thermal stability, while high coefficient (COF) and wear rate limit its wide application. In order to endow PI with better friction and wear resistance, Mo2Ti2C3 MXene was used as solid lubricant to prepare Mo2Ti2C3/PI nanocomposites with different content of Mo2Ti2C3. The effect of the amount of Mo2Ti2C3 on the tribological behavior of PI was explored and the tribological mechanism was also analyzed Tribological tests showed that at 1.2 wt% of Mo2Ti2C3 addition, the composite material demonstrated superior friction and wear resistance, exhibiting a 19.9% decrease in the COF and a 79.7% decrease in the wear rate compared to single PI due to the good self-lubricating properties of Mo2Ti2C3 MXene. Moreover, Mo2Ti2C3 can also effectively assist PI to form sleek transfer films without interruption or gaps on the steel balls, resulting in a reduced friction COF and wear rate of the material. This work demonstrates that Mo2Ti2C3 MXene is an aussichtsreich additive for polymers to improve the tribological properties and broadens the applications of Mo2Ti2C3/PI composites in friction material area.
中文翻译：
Mo2Ti2C3/聚酰亚胺复合薄膜干摩擦条件下的摩擦学行为及机理
聚酰亚胺（PI）具有良好的机械性能和热稳定性，但高系数（COF）和磨损率限制了其广泛应用。为了赋予PI更好的摩擦磨损性能，以Mo 2 Ti 2 C 3 MXene为固体润滑剂制备Mo 2 C 3 /不同Mo含量的PI纳米复合材料 2 Ti 2 C 3 。探讨了 Mo 2 Ti 2 C 3 含量对 PI 摩擦学行为的影响，并分析了摩擦学机理。添加1.2 wt%的Mo 2 Ti 2 C 3 时，复合材料表现出优异的摩擦磨损性能，COF降低了19.9%，由于Mo 2 Ti 2 C 3 MXene良好的自润滑性能，与单一PI相比，磨损率降低了79.7%。此外，Mo 2 Ti 2 C 3 还可有效协助 PI 在钢球上形成光滑的转移膜，且无中断或间隙，从而减少摩擦材料的COF和磨损率。这项工作表明 Mo 2 Ti 2 C 3 MXene 是一种澳大利亚添加剂，可改善聚合物的摩擦学性能并拓宽 Mo 2 C 3 /PI复合材料在摩擦材料领域的应用。
更新日期：2024-03-14
中文翻译：
Mo2Ti2C3/聚酰亚胺复合薄膜干摩擦条件下的摩擦学行为及机理
聚酰亚胺（PI）具有良好的机械性能和热稳定性，但高系数（COF）和磨损率限制了其广泛应用。为了赋予PI更好的摩擦磨损性能，以Mo 2 Ti 2 C 3 MXene为固体润滑剂制备Mo 2 C 3 /不同Mo含量的PI纳米复合材料 2 Ti 2 C 3 。探讨了 Mo 2 Ti 2 C 3 含量对 PI 摩擦学行为的影响，并分析了摩擦学机理。添加1.2 wt%的Mo 2 Ti 2 C 3 时，复合材料表现出优异的摩擦磨损性能，COF降低了19.9%，由于Mo 2 Ti 2 C 3 MXene良好的自润滑性能，与单一PI相比，磨损率降低了79.7%。此外，Mo 2 Ti 2 C 3 还可有效协助 PI 在钢球上形成光滑的转移膜，且无中断或间隙，从而减少摩擦材料的COF和磨损率。这项工作表明 Mo 2 Ti 2 C 3 MXene 是一种澳大利亚添加剂，可改善聚合物的摩擦学性能并拓宽 Mo 2 C 3 /PI复合材料在摩擦材料领域的应用。
京公网安备 11010802027423号