화학공학소재연구정보센터
Applied Chemistry for Engineering, Vol.31, No.2, 193-199, April, 2020
식기용 세정제 조성에 있어서 계면물성이 세정력에 미치는 영향
Effect of Interfacial Properties on the Detergency in Dishwashing Agent Composition
E-mail:
초록
식기세정용 세정제의 조성에 따른 오일(O) 및 세정수용액(W)의 계면의 물성에 미치는 영향을 조사하였으며 계면물성에 따른 세정효과를 검토하였다. 또한 각 조성에 따른 식기표면에 오염된 오일의 세정력과 세척 헹굼 후 오염물 및 세척제의 잔류성에 대한 평가를 하였다. 본 연구에서 사용된 세정제의 조성에 있어서 고체표면에 오염된 오일의 제거는 세척액/오일/고체 간의 계면물성과 깊은 관련이 있었으며, 특히 전진 및 후진 동적접촉각에 크게 의존하였다. 전진 및 후진접촉각이 동시에 낮은 경우에 세정액의 침투성이 매우 커서 고체표면에 오염된 오일의 제거효과가 높았으며 세척 후 오염물의 잔류가 거의 없었다. O/W의 계면장력이 작을수록 오염된 오일의 유화가 잘 되었으며 계면장력이 높을수록 유화가 잘 이루어지지 않았다. 그러나 본 연구에서는 유화효과는 세척력에 크게 영향을 미치지 못하였으며 특히 낮은 계면장력을 갖는 세정제의 경우 세척 후 세정제 물질이 피세척물의 표면에 잔류하는 문제점이 있었다.
The effects of the composition of the dishwashing detergent on interfaces of the oil (O) and the aqueous (W) solution in addition to the cleaning effects of interfacial properties were investigated. Also, the cleaning power of the oil contaminated on the surface of the dish according to each composition and the residuals of the contaminants and the cleaning agent after the washing rinses were evaluated. The removal of contaminated oil on the solid (S) surface in the composition of the cleaning agents used in this study was strongly related to the interfacial properties between the W/O/S, and was particularly dependent on the forward and backward dynamic contact angles. When both contact angles were low at the same time, the permeability of the cleaning solution was so high that the contaminated oil showed a high removal effect. The smaller the interfacial tension of O/W was, the better emulsification of the contaminated oil, the higher the interfacial tension, and the poorer emulsification were achieved. However, the emulsification effect did not significantly affect the cleaning power. In particular, in the case of the cleaner having low interfacial tension, the cleaning material remained on the surface of the solid after washing.
  1. Falbe J, Theory, Technology and Application, 1st ed., 14-18, Verlag GmbH & Co, NY, USA (1986).
  2. Kou K, New Surfactant, 1st ed., 19, Sehwa Publishing, Japan (1983).
  3. Myers D, Surfactant Science and Technology, 1st ed., 11-12, VCH Publishers Inc., NY, USA (1988).
  4. Rosen MJ, Surfactant and Surface Phenomena, 1st ed., 3-4, Kodamsa Science Technology, Japan (1988).
  5. Myers D, Surfaces, Interfaces, and Colloids, 1st ed., 25-27, VCH Publishers Inc., NY, USA (1990).
  6. Myers D, Surfaces, Interfaces, and Colloids, 1st ed., 30-33, VCH Publishers Inc., NY, USA (1990).
  7. Falbe J, Theory, Technology and Application, 14-18, Verlag GmbH & Co, NY, USA (1986).
  8. Attwood D, Florence AT, Surfactant Systems Their Chemistry, Pharmacy and Biology, 40-49, Chapman and Hall, NY, USA (1983).
  9. Lai KY, Liquid Detergents, 43, Marcel Dekker, Inc., NY, USA (1996).
  10. Wenzel RN, Ind. Eng. Chem., 28, 988 (1936)
  11. Cassie ABD, Baxter S, Trans. Faraday Soc., 40, 546 (1944)
  12. Harkins WD, Feldman A, J. Am. Chem. Soc., 44(12), 2665 (1922)
  13. Amin R, Smith TN, Fluid Phase Equilib., 142(1-2), 231 (1998)
  14. Fox HW, Zisman WA, J. Colloid Sci., 5(6), 514 (1950)
  15. Fox HW, Zisman WA, J. Colloid Sci., 7(4), 428 (1952)
  16. Wasan DT, Nikolov AD, Nature, 423(6936), 156 (2003)
  17. Lehr CM, Bodde HE, Bouwstra JA, Junginger HE, Eur. J. Pharm. Sci., 1(1), 19 (1993)
  18. Baker LE, Pierce AC, Luks KD, Soc. Pet. Eng. J., 22(05), 731 (1982)
  19. Abrams DS, Prausnitz JM, AIChE J., 21, 116 (1975)
  20. Chen CC, Britt HI, Boston JF, Evans LB, AIChE J., 28(4), 588 (1982)
  21. Morra M, Occhiello E, Garbassi F, Langmuir, 5, 872 (1989)
  22. Ogawa N, Soga M, Takada Y, Nakayama I, Jpn. J. Appl. Phys., 32, 35876 (1993)
  23. Miwa M, Nakajima A, Fujishima A, Hashimoto K, Watanabe T, Langmuir, 16, 5754 (2000)
  24. Takai O, Hozumi A, Inoue Y, Komori T, Bull. Mater. Sci., 20, 1368 (1997)
  25. Akhter MS, Colloids Surf. A: Physicochem. Eng. Asp., 157(1-3), 203 (1999)
  26. Gamez-Corrales R, Berret JF, Walker LM, Oberdisse J, Langmuir, 15(20), 6755 (1999)
  27. Riba JR, Esteban B, Eur. J. Phys., 35(5), 055003 (2014)
  28. Picknett RG, Bexon R, J. Colloid Interface Sci., 61(2), 336 (1977)
  29. Stalder AF, Melchior T, Muller M, Sage D, Blu T, Unser M, Colloids Surf. A: Physicochem. Eng. Asp., 364(1-3), 72 (2010)
  30. del Rio OI, Neumann AW, J. Colloid Interface Sci., 196(2), 136 (1997)
  31. Tennant D, The Journal of Ecology, 995-1001 (1975).