화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Applied Chemistry for Engineering, Vol.23, No.1, 71-76, February, 2012
Export Citation
Perfluoropolyether (PFPE)로 처리된 표면의 생물오손 방지 특성 연구
Study on Anti-biofouling Properties of the Surfaces Treated with Perfluoropolyether (PFPE)
박수인, 권순일, 이영민, 고원건, 하종욱1, 이상엽†
  • 연세대학교 화공생명공학과
  • 1한국화학연구원
Sooin Park, Sunil Kwon, Yeongmin Lee, Won-Gun Koh, Jong Wook Ha1, and Sang-Yup Lee†
  • Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, Korea
  • 1Korea Research Institute of Chemical Technology, Daejeon 305-343, Korea
E-mail:
초록
해조류 및 따개비 등의 해양 생물에 의한 선박 및 해양 구조물 표면의 생물오손(biofouling)은 선박 운영비를 증가시키고 구조물을 유지, 보수하는데 어려움을 가져왔다. 본 논문에서는 이러한 생물오손 방지 또는 생물오손 제거(foulingrelease)를 향상시키는 방안으로 불소계 화합물인 perfluoropolyether (PFPE)를 이용하여 해양 생물의 표면 점착을 억제하는 방법이 연구되었다. 우선 생물오손을 예측할 수 있는 지표로서 물방울 접촉각이 측정되었다. 아민그룹으로 처리된 친수성 표면이 갖는 46.7°의 물방울 접촉각이 PFPE 처리 후 64.5°로 상승하여 표면의 혐수성이 증가하였다. 이로 인해 초기에 따개비 포자 및 해양 미생물의 점착이 친수성 카르복실 표면과 비교시 약 15% 억제되었다. 또한 표면 코팅시 평탄면이 형성되어 PDMS로 처리된 표면 굴곡이 있는 표면보다 점착된 미생물의 제거가 용이하였다. 이러한 점착 억제 특성은 물리화학적 방법을 통해 측정된 물성들과 비교, 분석되었으며, 표면에 점착된 미생물의 염색을 통한 형광도 측정을 통해 표면 점착도가 정량적으로 분석되었다. PFPE가 갖는 가공의 용이성과 저독성 특성으로 인해 PFPE는 향후 단기간 생물학적 방오염이 필요한 해양 구조물 이외에 단백질 점착 억제가 요구되는 의료용 장비 등에도 활용될 수 있을 것으로 기대된다.
Biofouling by marine organisms such as algae and barnacles causes lots of significant problems in marine systems such as a rise of the maintenance-repair cost for the ship and the marine structures. In this work, a fluoropolymer, perfluoropolyether(PFPE), was applied as an anti-biofouling coating material that prevents the adhesion of marine organisms and facilitates the removal of them. Water contact angles of various surfaces were tested to examine the hydrophobicity of the PFPE-modified surface. The PFPE-modified surface showed the water contact angle of 64.5° which is a remarkable rise from 46.7° of amine-treated surface. When the substrate was treated with PFPE, the adhesion on the of the barnacle and other marine organisms were repressed around 15% by the enhanced hydrophobicity. In addition, the removal the of the adhered marine organisms were better comparing to that of the surface prepared by PDMS. Surfaces of the substrate treated by PFPE were characterized through physical and chemical methods to analyze the biofouling results. Degree of biomolecular adhesion to the substrate was quantified by the measurement the fluorescence intensity of marine organisms dyed with green fluorescence. PFPE is expected to be applicable not only to anti-biofouling systems but also to medical devices where the prevention of protein adhesion is required.
Keywords:biofouling;perfluoropolyether;barnacle;hydrophobic;surface
  1. Townsin RL, Biofouling., 19, 9 (2003)
  2. Callow ME, Callow JA, Biologist., 49, 1 (2002)
  3. Molino PJ, Wetherbee R, Biofouling., 24, 365 (2008)
  4. Strand J, Jacobsen JA, Sci. Total Environ., 350, 72 (2005)
  5. Yebra DM, Kiil S, Dam-Johansen K, Prog. Organ. Coatings., 50, 75 (2004)
  6. Aldred N, Clare AS, Biofouling., 24, 351 (2008)
  7. Tsapikouni TS, Missirlis YF, Mater. Sci. Eng. B., 152, 2 (2008)
  8. Takahara A, Hara Y, Kojio K, Kajiyama T, Coll. Surf. B., 23, 141 (2002)
  9. Osaki T, Renner L, Herklotz M, Werner C, J. Phys. Chem. B, 110(24), 12119 (2006)
  10. Tang Y, Finlay JA, Kowalke GL, Meyer AE, Bright FV, Callow ME, Callow JA, Wendt DE, Detty MR, Biofouling., 21, 59 (2005)
  11. Scardino AJ, Zhang H, Cookson DJ, Lamb RN, de Nys R, Biofouling., 25, 757 (2009)
  12. Choi SJ, Suh KY, Lee HH, J. Am. Chem. Soc., 130(20), 6312 (2008)
  13. Owen MJ, Physical Properties of Polymers Handbook, ed. Mark JE, 669, AIP Press, New York (1996)
  14. Howard JA, Hoy VJ, O’Hagan D, Smith GT, Tetrahedron., 52, 12613 (1996)
  15. Ha JW, Park IJ, Lee SB, Macromolecules, 38(3), 736 (2005)
  16. Yu M, Gu GT, Meng WD, Qing FL, Appl. Surf. Sci., 253(7), 3669 (2007)
  17. Choi J, Gawaguchi M, Kato T, Ikeyama M, J. Appl. Phys., 08N109/1, 99 (2006)
  18. Liu E, Tan KS, Tan HI, J. Nanosci. Nanotech., 8, 2719 (2008)
  19. Rolland JP, Hagberg EC, Denison GM, Carter KR, Desimone JM, Angew. Chem. Int. Ed., 43, 5796 (2004)
  20. Fabbri P, Messori M, Montecchi M, Pilati F, Taurino R, Tonelli C, Toselli M, J. Appl. Polym. Sci., 102(2), 1483 (2006)
  21. Kwon S, Ha JW, Noh J, Lee SY, Appl. Surf. Sci., 257(1), 165 (2010)
  22. Kwon S, Kim H, Ha JW, Lee SY, J. Ind. Eng. Chem., 17(2), 259 (2011)
  23. Chapman RG, Ostuni E, Takayama S, Holmlin RE, Yan L, Whitesides GM, J. Am. Chem. Soc., 122(34), 8303 (2000)
  24. Barbero N, Napione L, Quagliotto P, Pavan S, Barolo C, Barni E, Bussolino F, Viscardi G, Dyes Pigments., 83, 225 (2009)
  25. Schmidt DL, Brady RF, Lam K, Schmidt DC, Chaudhury MK, Langmuir, 20(7), 2830 (2004)
  26. Feng SJ, Wang Q, Gao Y, Huang YG, Qing FL, J. Appl. Polym. Sci., 114(4), 2071 (2009)
  27. Krishnan S, Ayothi R, Hexemer A, Finlay JA, Sohn KE, Perry R, Ober CK, Kramer EJ, Callow ME, Callow JA, Fischer DA, Langmuir, 22(11), 5075 (2006)
  28. Holland R, Dugdale TM, Wetherbee R, Brennan AB, Finlay JA, Callow JA, Callow ME, Biofouling., 20, 323 (2004)
  29. Hu ZK, Finlay JA, Chen L, Betts DE, Hillmyer MA, Callow ME, Callow JA, DeSimone JM, Macromolecules, 42(18), 6999 (2009)
  30. Yarbrough JC, Rolland JP, DeSimone JM, Callow ME, Finlay JA, Callow JA, Macromolecules, 39(7), 2521 (2006)
  31. Kumar N, Parajuli O, Gupta A, Hahm JI, Langmuir, 24(6), 2688 (2008)