CAJ | 학술논문

以二正丁胺、CS2和 La2O3为原料制备一种润滑油添加剂--二丁基二硫代氨基甲酸镧(LADTC)，该化合物在润滑油中具有良好的溶解性．通过红外光谱(FTIR)对其进行结构分析．热重分析表明该化合物热稳定性良好．采用四球摩擦磨损试验机考察该添加剂的摩擦学性能，并利用扫描电子显微镜(SEM)观察钢球磨斑表面形貌．结果表明，在基础油中加入2.0%的LADTC时，润滑油的摩擦系数较空白基础油降低38.5%，磨斑直径(WSD)最小值为0.24,mm，且钢球磨斑表面较为光滑．
이이정정알、CS2화 La2O3위원료제비일충윤활유첨가제--이정기이류대안기갑산란(LADTC)，해화합물재윤활유중구유량호적용해성．통과홍외광보(FTIR)대기진행결구분석．열중분석표명해화합물열은정성량호．채용사구마찰마손시험궤고찰해첨가제적마찰학성능，병이용소묘전자현미경(SEM)관찰강구마반표면형모．결과표명，재기출유중가입2.0%적LADTC시，윤활유적마찰계수교공백기출유강저38.5%，마반직경(WSD)최소치위0.24,mm，차강구마반표면교위광활．
Oil-soluble lanthanum dibutyl dithiocarbamate(LADTC)as an lubricant additive was prepared with N,N-dibutyl amine(C8H18NH),carbon disulfide(CS2)and lanthanum oxide(La2O3). Its chemical structure was characterized with infra-red spectroscopy. Thermogravimetric analysis(TGA)showed that it possessed good thermostability. The tribological per-formances of LADTC in the base oil were evaluated by a four-ball machine. The surface topography of wear scars was ana-lyzed with scanning electron microscope(SEM). The results indicated that the tribological properties were optimal when w(LADTC)/w(oil)=2%. The friction coefficient was reduced by 38.5%compared with that of the base oil,and the wear scar diameter(WSD)was 0.24,mm.