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Photochromic fabrics from hybrid silica surface coatings

Parhizkar, Marzieh, Cheng, Tong, Wang, Xungai and Lin, Tong 2010, Photochromic fabrics from hybrid silica surface coatings, in Chemeca 2010 : Proceedings of the 40th Australasian Chemical Engineering Conference, Engineers Australia, [Barton, ACT], pp. 1-3.

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Title Photochromic fabrics from hybrid silica surface coatings
Author(s) Parhizkar, Marzieh
Cheng, Tong
Wang, Xungai
Lin, Tong
Conference name Australasian Chemical Engineering Conference (40th : 2010 : Adelaide, South Australia)
Conference location Adelaide, S.A.
Conference dates 26-29 Sep. 2010
Title of proceedings Chemeca 2010 : Proceedings of the 40th Australasian Chemical Engineering Conference
Editor(s) Biggs, Mark
Publication date 2010
Conference series Australasian Chemical Engineering Conference
Start page 1
End page 3
Total pages 3
Publisher Engineers Australia
Place of publication [Barton, ACT]
Summary In this study, hybrid silica prepared by a sol-gel technique and doped with a photochromic dye was used to produce photochromic coatings on fabric surfaces. The coated fabrics showed a strong photochromic effect with very fast optical response speed. Good coating adhesion was obtained on wool fabrics. The photostability of the photochromic fabrics was improved by three different processes: adding a photo stabilizer, adjusting the surface wettability and sealing off the dye-containing pores with additional silica coating. Four UV stabilizers were added separately to the photochromic silica coatings to investigate their influence on the photostability and photochromic behaviour. The addition of UV stabilizers retarded the photochromic response and reduced photochromic absorption, but increased photochromic lifetime. Among the four UV stabilizers studied, the quencher resulted in the best improvement to the photostability with minimal reduction in the photochromic absorption. Increasing the hydrophobicity of the coating, and sealing-off the dye-containing pores were also found to improve photostability.
ISBN 9780858259713
Language eng
Field of Research 091205 Functional Materials
091202 Composite and Hybrid Materials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category E1 Full written paper - refereed
HERDC collection year 2010
Copyright notice ©2010, Engineers Australia
Persistent URL http://hdl.handle.net/10536/DRO/DU:30032951

Document type: Conference Paper
Collections: Centre for Material and Fibre Innovation
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