Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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A Study on the Self-cleaning Surface Finishing Using PFOA Free Fluoric Polymer and Silica Nano-sol

PFOA Free 불소 고분자 및 실리카 나노졸을 이용한 self cleaning 표면 가공에 관한 연구

  • Park, Sung-Min (Korea Dyeing Technology Center) ;
  • Kwon, Il-Jun (Korea Dyeing Technology Center) ;
  • Kim, Ran (Dept. of Advanced Organic Materials Science & Engineering, Kyungpook national university) ;
  • Yeum, Jeong-Hyun (Dept. of Advanced Organic Materials Science & Engineering, Kyungpook national university) ;
  • Yoon, Nam-Sik (Dept. of Textile System Engineering, Kyungpook national university) ;
  • Lee, Kyeung-Nam (Daegu Gyeongbuk Design Center)
  • 박성민 (한국염색기술연구소) ;
  • 권일준 (한국염색기술연구소) ;
  • 김란 (경북대학교 기능물질공학과) ;
  • 염정현 (경북대학교 기능물질공학과) ;
  • 윤남식 (경북대학교 섬유시스템공학과) ;
  • 이경남 (대구경북디자인센터)
  • Published : 2009.12.27
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Abstract

Super-hydrophobic surface, with a water contact angle greater than $150^{\circ}$, has a self cleaning effect termed 'lotus effect'. We introduced super-hydrophobicity onto aramid/rayon mixture fabric with dual-scale structure by assembling silica nano-sol. Mixture fabric was treated with silica nano-sol, fluoric polymer using various parameters such as particle size, concentration. Silica nano-sol size were measured using particle size analyzer. Morphological changes by particle size were observed using field emission scanning electron microscopy(FE-SEM), contact angle measurement equipment. The contact angle of water was about $134.0^{\circ}$, $137.0^{\circ}$, $143.0^{\circ}$, $139.5^{\circ}$ and $139.0^{\circ}$ for mixture fabric coated with 100.2nm, 313.7nm, 558.2nm, 628.5nm and 965.4nm silica nano-sol, compared with about $120.0^{\circ}$ for mixture fabric coated with fluoric polymer. When we mixed particle sizes of 100.2nm and 558.2nm by 7:3 volume ratio, the contact angle of water was about $146.2^{\circ}$. And we mixed particle sizes of 313.7nm and 558.2nm by 7:3 volume ratio, the contact angle of water was about $141.8^{\circ}$. Also we mixed particle sizes of 558.2nm and 965.4nm by 7:3 volume ratio, the best super-hydrophobicity was obtained. In this paper, we fabricated the water-repellent surfaces with various surface structures by using four types of silica nano-sol, and we found that the dual-scale structure was very important for the super-hydrophobicity.

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References

  1. J. Berthiaume and K. B. Wallace, Perfluorooctanoate, perflourooctanesulfonate, and N-ethyl perfluorooctanesulfonamido ethanol peroxisome proliferation and mitochondrial biogenesis, Toxicology letters, 129(1), 23-32(2002) https://doi.org/10.1016/S0378-4274(01)00466-0
  2. G. Kennedy, The Toxicology of Perfluorooctanoate, Critical reviews in toxicology, 34(4), 351-384 (2004) https://doi.org/10.1080/10408440490464705
  3. T. Young, 'Philosophical Transaction of the Royal Society of London', Night Thoughts of a Quantum Physicist, U. K., pp.65-87, 1805
  4. W. Barthlott and C. Neinhuis, Purity of the Sacred Lotus, or Escape from Contamination in Biological Surfaces, Planta, 202(1), 1-8(1997) https://doi.org/10.1007/s004250050096
  5. Y. L. Linda, Wu, A. M. Soutar, X. T. Zeng, Increasing Hydrophobicity of Sol-gel Hard Coating by Chemical and Morphological Modification, Surface ＆ Coating Technology, 198(1/3), 420-424(2005) https://doi.org/10.1016/j.surfcoat.2004.10.050
  6. H. Schmidt, G. Jonschker, S. Goedicke and M. Nennig, The Sol-Gel Process as a Basic Technology for Nanoparticle-Dispersed Inorganic-Organic Composites, J. Sol-Gel Sci. Technol., 19, 39-51(2000) https://doi.org/10.1023/A:1008706003996
  7. L. F. Francis, 'Sol-Gel Methods for Oxide Coatings, Intermetallic and Ceramic Coatings', M. Dekker, New York, pp.31-82, 1999
  8. C. Schramm, W. H. Binder and R. Tessadri, Durable Press Finishing of Cotton Fabric with 1,2,3,4-Butanetetracarboxylic Acid and TEOS/GPTMS, J. Sol-Gel Sci. Technol., 29, 155-165(2004) https://doi.org/10.1023/B:JSST.0000023850.97771.7d
  9. C. J. Brinker and G. W. Scherer, 'Sol-Gel Science', ed. C.J.Brinker, Academic Press, San Diego, p.22, 1990
  10. B. Mahltig, D. Knittel, E. Schollmeyer and H. Bottcher, Incorporation of Triarylmethane Dyes into Sol–Gel Matrices Deposited on Textiles, J. Sol-Gel Sci. Technol., 31, 293-297(2004) https://doi.org/10.1023/B:JSST.0000048006.70681.7c
  11. B. Mahltig and H. Bottcher, Modified Silica Sol Coatings for Water-Repellent Textiles, J. Sol-Gel Sci. Technol., 27, 43-52(2003) https://doi.org/10.1023/A:1022627926243
  12. N. Ueno and D. Shunkichi, Effect of Silica Additive on the Formation of Lotus-Type Porous Alumina under Unidirectional Solidification, Materials transactions, 47(9), 2167-2171(2006) https://doi.org/10.2320/matertrans.47.2167
  13. W. Stober, A. Fink, E. Bohn, Controlled growth of monodisperse silica spheres in the micron size range, J. colloid and interface science, 26(1), 62-69(1968) https://doi.org/10.1016/0021-9797(68)90272-5
  14. G. H. Bogush, M. A. Tracy and C. F. Zukoski IV, Preparation of monodisperse silica particles: Control of size and mass fraction, J. noncrystalline solids, 353(30), 2932-2933(2007) https://doi.org/10.1016/j.jnoncrysol.2007.06.067