發(fā)布時(shí)間：2018-07-10 10:00

  本文選題：納米氧化鑭 + 純菜籽油　； 參考：《稀土》2017年04期

【摘要】：以純菜籽油作為基礎(chǔ)油,十二羥基硬脂酸為稠化劑,選擇較好的稠化劑與基礎(chǔ)油比例,在皂化前加入納米氧化鑭,利用"老三套"工藝方法皂化成鋰基脂。所用菜籽油經(jīng)過脫色處理,納米氧化鑭粒徑范圍20 nm~50 nm。利用紅外、TG、和SEM等檢測方法,對基礎(chǔ)油、鋰基脂和納米氧化鑭進(jìn)行表征。通過四球摩擦機(jī)考察其摩擦學(xué)性能,并對磨斑進(jìn)行SEM和EDS等檢測。結(jié)果表明,稠化劑與基礎(chǔ)油比例為6∶1較好,當(dāng)添加少量的納米氧化鑭時(shí),有助于潤滑脂抗磨減磨效果,與未添加的鋰基脂相比,磨斑減小,摩擦系數(shù)減小,熱穩(wěn)定性提高。
[Abstract]:With pure rapeseed oil as base oil, dodecyl stearic acid as thickener, better ratio of thickener and base oil was selected, nanometer lanthanum oxide was added before saponification, and spodum-based grease was saponified by "old three sets" process. After decolorization of rapeseed oil, the particle size of lanthanum oxide nanocrystalline was in the range of 20 nm~50 nm. The base oil, lithium-based lipid and nanometer lanthanum oxide were characterized by IR TG and SEM. The tribological properties were investigated by four ball friction machine, and the wear spot was examined by SEM and EDS. The results show that the ratio of thickener to base oil is 6:1, and the addition of a small amount of nanometer lanthanum oxide is helpful to the antiwear and antiwear effect of grease. Compared with the unadded lithium-based grease, the wear spot decreases, the friction coefficient decreases and the thermal stability is improved.
【作者單位】： 華東交通大學(xué)基礎(chǔ)科學(xué)學(xué)院;蘭州潤滑油研究開發(fā)中心;
【基金】：國家自然科學(xué)基金項(xiàng)目(21363008) 江西省自然科學(xué)基金項(xiàng)目(20143ACB20003) 江西科技計(jì)劃項(xiàng)目(20142BBE50008) 江西省教育廳科技項(xiàng)目(GJJ150484) 2015年度研究生創(chuàng)新專項(xiàng)資金項(xiàng)目
【分類號】：TE624.83

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本文編號：2113021