Preparation and Cleaning Properties of Environmental Friendly Semi-Solvent Cleaning Agents

친환경 준용매계 세정제의 제조와 그 세정 특성

  • Kang, Doo Whan (Institute of Material & Chemical Testing, Dankook University) ;
  • Ha, Soonhyo (Institute of Material & Chemical Testing, Dankook University) ;
  • Han, Jongpil (Institute of Material & Chemical Testing, Dankook University) ;
  • Lee, Byoung Chul (Institute of Material & Chemical Testing, Dankook University) ;
  • Yeo, Hak Gue (Institute of Material & Chemical Testing, Dankook University) ;
  • Bae, Jang Soon (Department of Industrial Chemistry, Dankook University) ;
  • Yeum, Kou-Sul (Korea Coast Guard)
  • 강두환 (단국대학교 재료화학시험연구소) ;
  • 하순효 (단국대학교 재료화학시험연구소) ;
  • 한종필 (단국대학교 재료화학시험연구소) ;
  • 이병철 (단국대학교 재료화학시험연구소) ;
  • 여학규 (단국대학교 재료화학시험연구소) ;
  • 배장순 (단국대학교 공업화학과) ;
  • 염규설 (해양경찰청)
  • Received : 2007.01.31
  • Accepted : 2007.03.20
  • Published : 2007.04.10

Abstract

Semi-solvent type cleaning agents were prepared by mixing naphthenes, natural terpene oil, surfactant and water, and measured their physical properties. And also, cleaning efficiency for flux and grease was measured by gravimetric method. By measuring the physical properties, pH for cleaning agents were 6.0~6.7, surface tension, 27.4~28.4 dyne/cm, and wetting index, 8.65~12.46 (with water), 11.99~17.43 (without water). The cleaning agent composed of naphthene, 30 wt%, natural terpene oil, 45 wt%, surfactant, 13 wt%, co-surfactant, 12 wt%, and water, 0 wt% had the largest wetting index, and shown the most effective cleaning properties for flux (98.66%) and grease (93.44%). The conductivity with $0.5{\sim}0.9{\mu}s/cm$ to the cleaning agent containing small amount of water was found to form W/O type microemulsion.

Acknowledgement

Supported by : 환경부

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