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Superhydrophobic PLA fabrics prepared by UV photo-grafting of hydrophobic silica particles possessing vinyl groups
- Issue Date
- 15-Apr-2010
- Publisher
- ACADEMIC PRESS INC ELSEVIER SCIENCE
- Keywords
- Superhydrophobicity; Poly(lactic acid) (PLA); UV photo-grafting; Silica particle; Sol-gel process
- Citation
- JOURNAL OF COLLOID AND INTERFACE SCIENCE, v.344, no.2, pp.584 - 587
- Journal Title
- JOURNAL OF COLLOID AND INTERFACE SCIENCE
- Volume
- 344
- Number
- 2
- Start Page
- 584
- End Page
- 587
- ISSN
- 0021-9797
- Abstract
- Superhydrophobic poly(lactic acid) (PLA) fabrics are prepared by UV photo-grafting of hydrophobic silica particles possessing vinyl functional groups on the surfaces, which is a novel one-step process to provide surface with roughness as well as hydrophobicity simultaneously. For this purpose, hydrophobic silica particles with vinyl groups and average diameter of 1.51 +/- 0.05 mu m are synthesized via a sol-gel process. The silica particles possessing vinyl groups are found to be effectively immobilized on PLA fabrics via UV photo-grafting reaction. The water contact angle of the treated PLA fabric is measured to be similar to 150 degrees, which is high enough to exhibit the Lotus effect as a result of the superhydrophobicity. (C) 2010 Elsevier Inc. All rights reserved.
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