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Wear of a Composite Based on Polyurethane, Polyfluorinated Alcohol, Montmorillonite, and Polytetrafluoroethylene
Journal of Friction and Wear ( IF 0.7 ) Pub Date : 2023-08-14 , DOI: 10.3103/s1068366623020046
S. V. Kudashev , A. A. Terekhov , V. A. Babkin , A. V. Nistratov , V. F. Zheltobryukhov , D. S. Andreev , A. V. Ignatov , V. N. Arisova , A. I. Bogdanov , N. V. Kuznetsova

Abstract

The influence of compositions based on 1H,1H,9H-trihydroperfluorononan-1-ol, montmorillonite, and polytetrafluoroethylene Fluralite on the structure and wear resistance of the polyurethane elastomer modified by them is considered. The introduction of polyelement modifiers leads to the reorganization of the amorphous structure of the polymer matrix and changes in the properties of the surface. There is an increase in the intensity of the amorphous halo and a decrease in its radial half-width. According to the methods of X-ray photoelectron spectroscopy and X-ray microanalysis, the surface (up to 3 nm) and deep layers (up to 5 μm) of the modified polyurethane elastomer are enriched with fluorine, which together leads to the formation of a hydrophobic boundary lubricant layer and provides increased wear resistance. The developed polyurethane composites may be of interest as monolithic sports, roofing, and waterproofing coatings.



中文翻译:

聚氨酯、多氟醇、蒙脱石、聚四氟乙烯复合材料的磨损

摘要

考察了基于1H,1H,9H-三氢全氟壬-1-醇、蒙脱石、聚四氟乙烯Furalite的组合物对其改性的聚氨酯弹性体的结构和耐磨性的影响。多元素改性剂的引入导致聚合物基体无定形结构的重组和表面性能的变化。非晶晕的强度增加,其径向半宽度减小。根据X射线光电子能谱和X射线微量分析方法,改性聚氨酯弹性体的表面(最高达3 nm)和深层(最高达5 μm)富含氟,共同导致形成疏水性边界润滑层并提供更高的耐磨性。

更新日期:2023-08-15
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