Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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A Study on the Friction and Wear Characteristics Engine Oil with Mo-DTP and Zn-DTP

Mo-DTP와 Zn-DTP를 혼합 첨가한 엔진 오일의 마찰 마모특성에 관한 연구

  • 김종호 (한국화학연구소 공업화학연구실) ;
  • 강석춘 (공군사관학교 기계공학과) ;
  • 정근우 (한국화학연구소 공업화학연구실) ;
  • 조원오 (한국화학연구소 공업화학연구실)
  • Published : 1991.04.01
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Abstract

As the additives of engine oil, Mo-DTP and Zn-DTP were studied by experimental works. These additives were added to the engine oil with various ratios, which was an attempt to find out the best ratio at which the wear and friction can be reduced effectively; Mo-DTP is belived to be able to decrease the frictioh of the sliding metal, while Zn-DTP is known as a very stable additive for oxidation at high temperature in addition to the good antiwear property. This study showed that the optimum addition ratio of Mo-DTP and Zn-DTP is 3:2. This oil made it possible to slide steel with minimum wear and low friction over various lovels of load at moderate temperature. But as the oil temperature increased, the wear slid with Mo-DTP oil was increased more. The reason of this result was that Mo-DTP deteriorated the property of oil at high temperature by the higher oxidation and viscosity of Mo-DTP oil than that of Zn-DTP oil.

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