{"title":"使用 WS2 改性椰子油/WPU 上浆剂研究单根 Al2O3 纤维表面的超低摩擦系数和高耐磨性","authors":"","doi":"10.1016/j.indcrop.2024.119624","DOIUrl":null,"url":null,"abstract":"<div><p>A green sizing agent of modified tungsten disulfide-modified coconut oil/waterborne polyurethane (WP-MCO/WPU) was innovatively prepared for improving the tribological properties of single Al<sub>2</sub>O<sub>3</sub> fiber (single AF). This sizing agent formed by WS<sub>2</sub>-PEG as an emulsifier with MCO and WPU showed good viscosity stability, wettability, thermal and dispersion stability. Subsequently, the effects of CO, MCO and WS<sub>2</sub>-PEG concentrations on the tribological properties of fibers were investigated. When the sizing agent contained 15 wt% of MCO-3 (esterification ratio: 5:1), the coefficient of friction (COF) was reduced from 0.2 (CO/WPU@single AF) to 0.121 (MCO-3/WPU@single AF), and a lubricant oil film was generated on the friction surface, the anti-friction was improved. However, with the increase of friction frequency and normal load, the oil film of MCO-3/WPU@single AF was destroyed and the anti-wear performance deteriorated. The sizing agent containing WS<sub>2</sub>-PEG (WP-MCO-3/WPU@single AF) had better anti-friction and superior anti-wear performance than without WS<sub>2</sub>-PEG (MCO-3/WPU@single AF). The COF was reduced from 0.121 to an ultra-low value of 0.056, and a dense lubricating film was exhibited of WP-MCO-3/WPU@single AF under high-frequency, high-load friction conditions. From mechanism analysis, the improved lubrication performance was attributed to the polarity and boundary lubrication of MCO, the unique load-bearing structure and friction-reducing of WS<sub>2</sub>-PEG. In conclusion, this sizing agent had attractive prospect in improving the wear resistance of ceramic fibers.</p></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":null,"pages":null},"PeriodicalIF":5.6000,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Investigation of ultra-low friction and high wear resistance on single Al2O3 fiber surface with WS2-modified coconut oil/WPU sizing agent\",\"authors\":\"\",\"doi\":\"10.1016/j.indcrop.2024.119624\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A green sizing agent of modified tungsten disulfide-modified coconut oil/waterborne polyurethane (WP-MCO/WPU) was innovatively prepared for improving the tribological properties of single Al<sub>2</sub>O<sub>3</sub> fiber (single AF). This sizing agent formed by WS<sub>2</sub>-PEG as an emulsifier with MCO and WPU showed good viscosity stability, wettability, thermal and dispersion stability. Subsequently, the effects of CO, MCO and WS<sub>2</sub>-PEG concentrations on the tribological properties of fibers were investigated. When the sizing agent contained 15 wt% of MCO-3 (esterification ratio: 5:1), the coefficient of friction (COF) was reduced from 0.2 (CO/WPU@single AF) to 0.121 (MCO-3/WPU@single AF), and a lubricant oil film was generated on the friction surface, the anti-friction was improved. However, with the increase of friction frequency and normal load, the oil film of MCO-3/WPU@single AF was destroyed and the anti-wear performance deteriorated. The sizing agent containing WS<sub>2</sub>-PEG (WP-MCO-3/WPU@single AF) had better anti-friction and superior anti-wear performance than without WS<sub>2</sub>-PEG (MCO-3/WPU@single AF). The COF was reduced from 0.121 to an ultra-low value of 0.056, and a dense lubricating film was exhibited of WP-MCO-3/WPU@single AF under high-frequency, high-load friction conditions. From mechanism analysis, the improved lubrication performance was attributed to the polarity and boundary lubrication of MCO, the unique load-bearing structure and friction-reducing of WS<sub>2</sub>-PEG. In conclusion, this sizing agent had attractive prospect in improving the wear resistance of ceramic fibers.</p></div>\",\"PeriodicalId\":13581,\"journal\":{\"name\":\"Industrial Crops and Products\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.6000,\"publicationDate\":\"2024-09-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Industrial Crops and Products\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0926669024016017\",\"RegionNum\":1,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"AGRICULTURAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Industrial Crops and Products","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0926669024016017","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRICULTURAL ENGINEERING","Score":null,"Total":0}
Investigation of ultra-low friction and high wear resistance on single Al2O3 fiber surface with WS2-modified coconut oil/WPU sizing agent
A green sizing agent of modified tungsten disulfide-modified coconut oil/waterborne polyurethane (WP-MCO/WPU) was innovatively prepared for improving the tribological properties of single Al2O3 fiber (single AF). This sizing agent formed by WS2-PEG as an emulsifier with MCO and WPU showed good viscosity stability, wettability, thermal and dispersion stability. Subsequently, the effects of CO, MCO and WS2-PEG concentrations on the tribological properties of fibers were investigated. When the sizing agent contained 15 wt% of MCO-3 (esterification ratio: 5:1), the coefficient of friction (COF) was reduced from 0.2 (CO/WPU@single AF) to 0.121 (MCO-3/WPU@single AF), and a lubricant oil film was generated on the friction surface, the anti-friction was improved. However, with the increase of friction frequency and normal load, the oil film of MCO-3/WPU@single AF was destroyed and the anti-wear performance deteriorated. The sizing agent containing WS2-PEG (WP-MCO-3/WPU@single AF) had better anti-friction and superior anti-wear performance than without WS2-PEG (MCO-3/WPU@single AF). The COF was reduced from 0.121 to an ultra-low value of 0.056, and a dense lubricating film was exhibited of WP-MCO-3/WPU@single AF under high-frequency, high-load friction conditions. From mechanism analysis, the improved lubrication performance was attributed to the polarity and boundary lubrication of MCO, the unique load-bearing structure and friction-reducing of WS2-PEG. In conclusion, this sizing agent had attractive prospect in improving the wear resistance of ceramic fibers.
期刊介绍:
Industrial Crops and Products is an International Journal publishing academic and industrial research on industrial (defined as non-food/non-feed) crops and products. Papers concern both crop-oriented and bio-based materials from crops-oriented research, and should be of interest to an international audience, hypothesis driven, and where comparisons are made statistics performed.