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CHEN Qi,ZHANG Renhui,HE Zhongyi,XIONG Liping.Effect of carbon-chain length and hydroxyl number on lubrication performance of alcohols[J].Journal of Hebei University of Science and Technology,2021,42(1):1-7
碳鏈長度與羥基數目對醇潤滑性能的影響
Effect of carbon-chain length and hydroxyl number on lubrication performance of alcohols
Received:October 21, 2020  Revised:November 23, 2020
DOI:10.7535/hbkd.2021yx01001
中文關鍵詞:  摩擦學  碳鏈  羥基    石墨烯  無定形碳  潤滑  減摩抗磨
英文關鍵詞:tribology  carbon chain  hydroxyl  alcohols  graphene  amorphous carbon  lubrication  antifriction and antiwear
基金項目:國家自然科學基金(51605336,5196502,5150505,21563012); 江西省自然科學基金(20202BAB204020,20181BAB203010,20171BCD40009)
Author NameAffiliationE-mail
CHEN Qi School of Materials Science and Engineering, East China Jiaotong University, Nanchang  
ZHANG Renhui School of Materials Science and Engineering, East China Jiaotong University, Nanchang zrh_111@126.com 
HE Zhongyi School of Materials Science and Engineering, East China Jiaotong University, Nanchang  
XIONG Liping School of Materials Science and Engineering, East China Jiaotong University, Nanchang  
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中文摘要:
      為了探究醇類物質在高載高速工況下的潤滑性能,尤其是碳鏈、羥基與潤滑性能的關系,開展了碳鏈長度、羥基數目對醇類物質潤滑性能影響的研究。利用四球摩擦機調查一系列醇類物質的摩擦學性能,結合黏度儀、透射電鏡和拉曼等檢測手段,探索碳鏈長度、羥基數目對潤滑性能的影響。實驗結果表明,隨著碳鏈的增長磨合期變短、摩擦系數達到穩態的時間變短、磨損率降低;隨著羥基數目的增多磨損率降低、無明顯磨合期和摩擦系數持續波動(乙二醇)或持續降低(甘油)。摩擦誘導形成的石墨烯較無定形碳更能有效地促使摩擦體系達到穩定的摩擦系數,縮短磨合期,研究結果可為醇類物質在機械設備領域的應用提供參考。
英文摘要:
      In order to explore the lubrication performance of alcohols under high loads and high speeds conditions, especially the relationship between carbon-chain length and hydroxyl number and lubrication performance, the effects of carbon-chain length and hydroxyl number on the lubrication performance were well studied. The tribological properties of a series of alcohols were investigated by a four-ball tribological machine, and the effects of the carbon-chain length and the hydroxyl number on their lubricating properties were investigated by means of viscometer, transmission electron microscopy (TEM) and Raman. Experiments show that with the increasing of the carbon-chain length, the run-in period and the time for achieving stable friction coefficient were shorted, and the wear was reduced; with the increasing of the hydroxyl number, the wear decreased with no obvious run-in period and consistent fluctuation of friction coefficient for ethylene glycol and continuous decrease of friction coefficient for glycerol. It is found that friction-induced graphene is superior to amorphous carbon in effectively promoting the tribosystem to achieve the stable friction coefficient and shorten run-in period, which provides reference for the application of alcohols in the field of mechanical equipment.
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