Modification and Characterization of Nano-TiO2 for Efficient Fixation on Cotton Fibers
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In this paper, a silane coupling agent, 3-aminopropyltriethoxysilane, was reacted with nano-TiO2 to introduce amino group onto it which was then reacted with trichlorotriazine to obtain a dichlorotriazine functionalized nano-TiO2 for the firm fixation of it on cotton fibers. The reaction process was monitored by the titration of primary and secondary amino groups, and the reaction conditions were optimized with orthogonal method accordingly. The dichlorotriazine functionalized nano-TiO2 was reacted with cotton fabric by the nucleophile substitution reaction to afford nano-TiO2 functionalized cotton fabric, the structure and surface morphology of the nano-TiO2 finished cotton fibers were studied by FT-TR and SEM. In addition, the fixation duration of the nano-TiO2 modified cotton was studied according to AATCC test method 61–2010. The results show that the washing fastness of the nano-TiO2 is excellent.
KeywordsNano-TiO2 3-aminopropyltriethoxysilane Trichlorotriazine
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