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Development of polymer film coatings with high adhesion to steel alloys and high wear resistance
Polymer Composites ( IF 4.8 ) Pub Date : 2020-03-30 , DOI: 10.1002/pc.25583
Alexei Yumashev 1 , Alexey Mikhaylov 2
Affiliation  

This work proposes a technique for the controlled incorporation of nanoinclusions into a polymer matrix, which, as expected, will help resolve the contradiction in the requirements asked of polymer film coats, that is, good adhesion and above‐average tribological properties, including the high wear resistance. The study introduces and puts to the test an approach by performing the controlled incorporation of fullerene‐like nanoinclusions. The results of experimental verification, that is, the tribological profile of resultant nanocomposite were presented. It was found that a polyacetal matrix reinforced with the fullerene‐like nanoinclusions demonstrated a more stable behavior in tribological tests. These polymer films showed slightly lower coefficients of friction. This result can be considered successful and promising; without changing the nanocomposite composition, a tribological enhancement was achieved by manipulating the nanoparticle distribution within the polymer matrix. This study sought to create a three‐dimensional structure of nanoinclusions, specifically a graphite‐like hexagonal structure, that is, “columns” with a height equal to the film thickness and located at the nodes of the hexagonal lattice. The research concept was experimentally verified by comparing polymer films with a different distribution of nanoinclusions integrated into them. The filler fractions were 2 wt% in all films regardless of nanoparticle distribution. A polymer film with a uniform distribution of nanoinclusions was regarded as a baseline. A film with an ordered arrangement of nanoinclusions showed a 40% greater wear resistance (the number of cycles to film fragmentation) and a 39% lower coefficient of friction.

中文翻译:

开发对钢合金具有高附着力和高耐磨性的聚合物薄膜涂料

这项工作提出了一种可控制地将纳米夹杂物掺入聚合物基质中的技术,正如预期的那样,这将有助于解决聚合物膜涂层所要求的矛盾,即良好的附着力和高于平均水平的摩擦学性能,包括较高的摩擦性能。耐磨性。该研究通过控制富勒烯样纳米包裹体的掺入引入了一种方法并进行了测试。给出了实验验证的结果,即所得纳米复合材料的摩擦学特性。发现在摩擦学测试中,富勒烯样纳米夹杂物增强的聚缩醛基体表现出更稳定的行为。这些聚合物膜显示出稍低的摩擦系数。这个结果可以被认为是成功和有希望的;在不改变纳米复合材料组成的情况下,通过控制纳米颗粒在聚合物基质中的分布,实现了摩擦学增强。这项研究试图创建纳米夹杂物的三维结构,特别是石墨状六边形结构,即高度等于薄膜厚度并位于六边形晶格节点处的“列”。通过比较具有不同分布的纳米内含物分布的聚合物薄膜,实验验证了该研究理念。不管纳米颗粒的分布如何,所有薄膜中的填料分数均为2 wt%。具有纳米包含物的均匀分布的聚合物膜被认为是基线。
更新日期:2020-03-30
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