Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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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
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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.

나프텐계 탄화수소, terpene계 천연 용제, 계면활성제 및 물을 이용하여 친환경적 준용매계 세정제를 제조하고 이들의 물리적 특성과 flux 및 grease 오염물에 대한 세정효율을 측정하였다. 준용매계 세정제의 물성은 pH가 6.0~6.7의 약산성으로 중성에 가까운 값을 나타내었으며 표면장력은 27.4~28.4 dyne/cm의 값을 나타내었다. 또한 wetting index는 물이 소량 들어간 경우 8.65~12.46, 물이 들어가지 않은 경우 11.99~17.43의 값을 가졌으며 나프텐계 탄화수소 30 wt%, terpene계 천연 용제 45 wt%, 계면활성제 13 wt%, 보조계면활성제 12 wt%, 물 0 wt%의 조성으로 제조한 세정제가 17.43으로 가장 큰 값을 가졌으며 세정 효율 역시 flux에 대하여 98.64%, grease에 대하여 93.44%로 우수하였다. 전기 전도도는 소량의 물을 첨가한 경우 $0.5{\sim}0.9{\mu}s/cm$의 값을 나타내어 물이 용제 중에 균일하게 분산되어 있는 W/O형의 준용매계 세정제임을 확인하였다

Keywords

Acknowledgement

Supported by : 환경부

References

  1. 최형기, 02년도 오존층 파괴 물질 사용 합리화 대책 기술 세미나, 산업자원부 기술표준원, 한국정밀화학공업진흥회, 서울, p. 7-23 (2002)
  2. 통상산업부 화학생활공업과, 오존층 보호 법령 자료집, 증보판, 한국정밀화학공업진흥회, p. 7-36 (1996)
  3. A. C. Greene, R. D. Cormia, and Q. T. Philips, Evaluating Cleaning Efficiencies of CFC Replacement Systems in the Disk-Drive Industry Using Surface Analytical Techniques, Micro-contamination, Canon Communications (1992)
  4. J. H. Bae and M. C. Shin, Clean Technology, 5, 1 (1999)
  5. C. P. Wong Fellow, W. O. Gillum, R. A. Walters, P. J. Sakach, D. Powell, and B. Bivins, Transactions on Components Packing and Manufacturing Technology, 19, 119 (1996)
  6. Y. Shibano, The 1993 International CFC and Halogen Alternatives Conference Stratosperic Ozone Protection for 90's, 401 (1993)
  7. L. B. Rex, A Guide to Activated Carbon for Semi-Aqueous Processing, Precision Cleaning, 29 (1994)
  8. H. Y. Lee, J. W. Han, M. J. Lee, B. D. Park, S. W. Han, D. K. Lee, S. W. Park, I. G. Hwang, and J. H. Bae, J. Korea Ind. Eng. Chem., 14, 143 (2003)
  9. M. J. Owen, Interfacial Activity of Polydimethylsiloxane, K. L. Mittal and P. Bothorel (eds), Surfactant in Solution, Plenum, New York, 1577 (1986)
  10. K. Barbara, Microemulsion, Handbook of Detergents, 253 (1998)