Influence of Citric and Maleic Acid on Photo Catalytic Properties of Nano TiO2/Polysiloxane on Polyester fabric

Document Type : Research Article

Authors

1 Faculty of Engineering Islamic Azad University of Science and Research of Tehran, Tehran

2 Faculty of Textile Engineering, Amirkabir University of Technology, Tehran

/amnc.2012.2.7.7

Abstract

This research has been carried out with aims of comparing nano TiO2 adsorption on the polyester fabric with two diverse polycarboxylic acids alone and along with siloxane based softener for producing polyester fabric with self-cleaning properties. Three types of polyester fabrics including raw and two hydrolyzed fabric with 1% and 10% weight reduction has been treated with nano TiO2/sodium hypophosphite/triethanol amine/siloxane softener/citric acid or maleic acid through pad-dry-cure method. The influence of tri ethanol amine was to prevent fabric yellowing due to the degradation of unsaturated carboxylic acid at high temperature. The self-cleaning properties of the treated fabrics with citric and maleic acid have been compared. The results of sliding test of methylene blue on the inclined fabric indicated that effect of staining on CA treated fabric is more than the MA treated fabrics also increasing the weight reduction led to the lower staining. The FT-IR spectrums confirmed the possible reaction between polyester fabric and carboxylic acids. The alkali hydrolyzed polyester fabrics with 10% weight reduction indicated better self-cleaning properties also the treated fabric with maleic acid indicated a higher self-cleaning properties, FESEM pictures indicated hydrolysis of polyester due to alkali treatment and EDX analysis showed the loading of nano TiO2 and siloxane softener on the fabric surface. Further, the amount of Ti and Si elements was higher on the alkali hydrolyzed polyester fabrics.

Keywords

Files

Share

How to cite

Statistics