Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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Preparation and Evaluation of Self-cleaning Fabrics using Photocatalyst and Superhydrophobic Finishing

광촉매와 초발수 처리를 이용한 셀프클리닝 섬유의 제조 및 평가

  • Jeong, Euigyung (Department of Textile System Engineering, Kyungpook National University) ;
  • Woo, Heejoo (Department of Textile System Engineering, Kyungpook National University) ;
  • Cho, Seungbin (Department of Textile System Engineering, Kyungpook National University) ;
  • Bae, Jin-Seok (Department of Textile System Engineering, Kyungpook National University)
  • 정의경 (경북대학교 섬유시스템공학과) ;
  • 우희주 (경북대학교 섬유시스템공학과) ;
  • 조승빈 (경북대학교 섬유시스템공학과) ;
  • 배진석 (경북대학교 섬유시스템공학과)
  • Received : 2018.11.30
  • Accepted : 2018.12.12
  • Published : 2018.12.27
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Abstract

This study reported the dual functional self-cleaning PET fabrics prepared from $TiO_2$ and hexadecyltrimethoxysilane treatment, which have photodegradation and superhydrophobicity on the fabric surface. Phodegradation and superhydrophobicity of the resulting fabric were compared with $TiO_2$ or silane treated fabrics. The dual functional self-cleaning PET fabric showed less photodegradation than the $TiO_2$ treated fabric. However, the dual functional self-cleaning fabrics showed superior superhydrophobicity to silane treated fabric with increased water contact angle and significantly decreased roll-off angle. This suggested that the dual functional PET fabric has a great potential to be the commercialized self-cleaning fabric because it is repellent to soil or dust and even if soil or dust is adsorbed on the fabric surface, it can be removed by water rolling off on the surface or photodegradation by the photocatalyst.

Keywords

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Figure 1. Methylene blue photo-decomposition(%) of anatase TiO2 treated PET fabrics with various TiO2

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Figure 2. SEM images of the TiO2 treated fabrics with various TiO2 solution concentrations; (a) 1wt%, (b) 3wt%, (c) 5wt%.

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Figure 3. Methylene blue photo-decomposition(%) of anatase TiO2 treated PET fabrics before and after hexadecyltrimethoxysilane treatment.

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Figure 4. SEM images of anatase TiO2 and hexadecyltrimethoxysilane treated PET fabrics with magnifications of 20,000(a) and 100,000(b).

Table 1. Contact angles of hexadecyltrimethoxysilane treated PET fabrics with various silane concentrations

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