Please use this identifier to cite or link to this item: doi:10.22028/D291-24518
Title: Effect of heat treatment and additives on the photochromic and mechanical properties of sol-gel derived photochromic coatings containing spirooxazine
Author(s): Hou, Lisong
Hoffmann, Bernd
Schmidt, Helmut K.
Mennig, Martin
Language: English
Year of Publication: 1997
OPUS Source: Journal of sol gel science and technology. - 8. 1997, 1/3, S. 923-926
SWD key words: Mechanische Eigenschaft
DDC notations: 620 Engineering and machine engineering
Publikation type: Journal Article
Abstract: The experimental results on the photochromic and mechanical properties of coatings containing 1,3-dihydro-1,3,3-trimethylspiro[2H-indole-2,3''(3H)-naphth(2,1-b)(1,4) oxazine] (SO) derived from 3-glycidyl-oxypropyltrimethoxysilane (GPTMS), bisphenol A (BPA) and 1-methylimidazole (MI) by sol-gel processing are presented. It is shown that heat treatment temperature is a conflicting factor to the photochromic intensity (ΔA0), photostability and abrasion resistance of the photochromic coatings. With increasing densification temperature the matrix rigidity increases leading to a decrease of ΔA0 and at the same time an enhancement of both abrasion resistance and photostability, the optimum heat treatment temperature is 110'°C under our experimental conditions. By the use of certain additives, e.g., fluorosilanes (FAS), not only ΔA0 but also the photostability and the abrasion resistance of the photochromic coatings have been further improved.
Link to this record: urn:nbn:de:bsz:291-scidok-28337
Date of registration: 19-Apr-2010
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
SciDok - Der Wissenschaftsserver der Universität des Saarlandes

Files for this record:
File Description SizeFormat 
sm199703.pdf254,26 kBAdobe PDFView/Open

Items in SciDok are protected by copyright, with all rights reserved, unless otherwise indicated.