硫化廿二酸中氧与硫在菜籽油中的协同减摩抗磨作用研究

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采用低温硫化工艺和复分解反应制备了无臭硫化廿二酸 ,在四球摩擦磨损试验机上考察了其在菜籽油中的减摩抗磨行为及承载能力 ,并对钢球磨损表面进行了扫描电子显微 (SEM )、电子探针 (EPMA)以及X射线光电子能谱 (XPS)分析。通过与廿二酸和硫化异丁烯的对比研究发现 ,在廿二酸中引入硫后 ,氧与硫产生了明显的协同减摩抗磨及承载作用。钢球磨损表面XPS分析结果表明 ,在摩擦过程中硫化廿二酸发生了摩擦化学变化 ,表面EPMA分析结果表明其表面保护膜富含氧和硫 The low-temperature vulcanization process and metathesis reaction were used to prepare the odorless sulfide diacid. The friction-reducing and anti-wear behavior and bearing capacity of the rapeseed oil in rapeseed oil were investigated on a four-ball friction and wear tester. Scanning electron SEM, EPMA and XPS. By comparison with isodecanedioic acid and isobutylene sulfide, it was found that the introduction of sulfur in the diacosanoic acid produced significant synergistic anti-wear and anti-wear effects of sulfur and sulfur. XPS analysis of ball wear surface showed that the frictional chemical changes of SAA occurred during the rubbing process. The surface EPMA analysis showed that the surface protective film was rich in oxygen and sulfur
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