CAJ | 학술논문

利用球磨膨胀石墨的方法制备纳米级石墨，并与蓖麻油酸、有机醇胺和硼酸等合成含纳米石墨的蓖麻油硼酸酯水基润滑剂。通过扫描电镜分析球磨对膨胀石墨组织结构的影响，并利用四球试验机和摩擦磨损试验机考察纳米石墨水基润滑剂润滑性能。试验结果表明，球磨后纳米级的石墨微片互相搭接在一起，形成许多纳米级微孔；纳米级的膨胀石墨能显著提高水基润滑剂的极压润滑性能，但对摩擦因数影响不大。纳米石墨具有优良的吸附性能，能够吸附在润滑膜上，充分发挥石墨的自润滑性，从而提高水基润滑剂的极压润滑性能。
이용구마팽창석묵적방법제비납미급석묵，병여비마유산、유궤순알화붕산등합성함납미석묵적비마유붕산지수기윤활제。통과소묘전경분석구마대팽창석묵조직결구적영향，병이용사구시험궤화마찰마손시험궤고찰납미석묵수기윤활제윤활성능。시험결과표명，구마후납미급적석묵미편호상탑접재일기，형성허다납미급미공；납미급적팽창석묵능현저제고수기윤활제적겁압윤활성능，단대마찰인수영향불대。납미석묵구유우량적흡부성능，능구흡부재윤활막상，충분발휘석묵적자윤활성，종이제고수기윤활제적겁압윤활성능。
Nanographite was prepared by ball milling expanded graphite,and nanographite-containing castor oil boric acid eater water-based lubricant was synthetised by using castor oil,organic hydramine and boric acid.The effect of ball milling on the graphite organization structure was studied by scanning electron microscope.The lubricating properties of nanographite-containing water-based lubricants were investigated by full-ball test and friction-wear test.The results show that many nanoscale pores are formed by the overlap of the graphite micro slices after ball milling.Nanoscale expended graphite can significantly improve the extreme pressure and lubricating properties of water-based lubricants,but it has little effect on the friction coefficient of water-based lubricants.Nanosacle graphite has excellent self-lubricating property and ad-sorption performance,which can be adsorbed on the lubricant film so as to improve the extreme pressure and lubricating properties of water-based lubricants.