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第 41 卷第 3 期Vol. 41 No. 3
2011 年 6 月Jun 2011

所屬欄目:功能材料

正十二烷硫基硼酸鋇摩擦學(xué)性能研究
曾小軍1,曾 明1,黃 芳2,蔣銀燕1,彭學(xué)東1 (1.長(cháng)沙醫學(xué)院 基礎系,湖南 長(cháng)沙 410083;2.長(cháng)沙商貿旅游職業(yè)技術(shù)學(xué)院,湖南 長(cháng)沙 410004)
摘 要:合成了一種油溶性化合物正十二烷硫基硼酸鋇(Ba-SB),并將其作為潤滑油添加劑,采用四球摩擦磨損試驗機評價(jià)了其摩擦學(xué)性能。結果表明:該添加劑具有較好的油溶性能和熱穩定性能。十二烷硫基硼酸鋇使HVI500基礎油的抗磨性能明顯改善,承載能力得到明顯提高,摩擦系數明顯降低,采用掃描電鏡對鋼球磨斑表面形貌進(jìn)行分析,加了該添加劑的鋼球磨斑表面平整、光滑,犁溝淺且鋼球磨斑表面有沉積物,從EDS譜圖上可以看出摩擦副表面含有B、N、Cr、Fe、S元素。從XPS分析添加劑在摩擦過(guò)程中發(fā)生了摩擦化學(xué)降解反應,并在摩擦副表面生成了BaO,B2O3和FeB的個(gè)物質(zhì)抗磨減摩膜,從而改善了其摩擦磨損性能。
關(guān)鍵詞:正十二烷硫基硼酸鋇;摩擦學(xué)性能;潤滑油添加劑
中圖分類(lèi)號:O627  文獻標識碼:A  文章編號:1009-9212(2011)03-0060-04
Preparation and Tribological Performance of Barium Dodecmercaborate
ZENG Xiao-jun1,ZENG Ming1,HUANG Fang2,JIANG Yin-yan1,PENG Xue-dong1 (1. School of Basis Department,Changsha Medical University,Changsha 410029,China; 2. Changsha Commerce and Tourism College,Changsha 410004,China)
Abstract:Oil-soluble barium dodecmercaborate(BDMB) was synthesized and its tribological properties in lubricating oil were evaluated using four-ball machine. The worn steel surface was investigated using SEM/EDS. The results indicated that the friction coefficient of the oil containing BDMB was decreased and the wear resistance and load-carrying capability were improved. The EDS and XPS analyses indicated that tribo-chemical reactions were involved in the friction progress,which generated a protective film containing BaO,B2O3 and FeB on the worn steel surface. This contributes to improving the anti-wear and extreme pressure properties of the HVI500 oil.
Key words:barium dodecmercaborate;tribological property;action mechanism
基金項目: 湖南省教育廳資助項目(09c161,009c162,10c0446)。
作者簡(jiǎn)介: 曾小軍(1981-),男,江西宜春人,講師,碩士,研究方向:新型潤滑油添加劑的合成及摩擦學(xué)性能研究。(E-mail:xjz20203@163.com)
收稿日期:2011-06-2
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