Title: UV-curable cationic hybrid adhesives with TiO2 nanostructure
Authors: Xiao-Hong Tang; Jing-Wei Liu; Wen-Bin Yang
College of Economics and Management, Southwest University of Science and Technology, Sichuan 621010, China
State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials, Southwest University of Science and Technology, Sichuan 621010, China
Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Sichuan 621010, China
Abstract: UV-curable cationic hybrid adhesives containing TiO2 nanostructures were prepared by using 3,4-epoxycyclohexylmethyl-3', 4'-epoxycyclohexanecarboxylate (CE) as UV-curable cationic monomer, triphenylsulfonium hexafluorophosphate salt (PI-432) as photoinitiator and titanium-tetraisopropoxide (TIP) as inorganic precursor. Morphology of the UV-cured hybrid adhesives was characterised by atom force microscopy (AFM). The effect of TIP content on light transmission and thermal stability of the hybrid adhesives were studied. The results showed that TiO2 nanostructures, the average diameter of which was 20 nm or so, could be uniformly dispersed in hybrid adhesives in presence of 5 wt% 3-glycidoxypropyltrimethoxysilane (GPTS) coupling agent. The light transmission of hybrid adhesives was above 85% at 400 to 1,100 nm, so it was transparent to visible light. At the same time, the thermal stability of hybrid adhesives was also improved.
Keywords: UV-curable adhesives; TiO2 nanostructure; in situ sol-gel; light transmission; thermal stability; ultraviolet; cationic hybrid adhesives; titanium dioxide; titania; nanotechnology.
Int. J. of Nanomanufacturing, 2014 Vol.10, No.1/2, pp.26 - 32
Submission date: 27 Sep 2012
Date of acceptance: 11 Mar 2013
Available online: 01 Feb 2014