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Rendering of Cellulose Acetate Fabrics Self-Cleaning through Treatment with TiO2 Nano Particles

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DOI: 10.4236/msa.2012.312127    4,084 Downloads   6,071 Views   Citations

ABSTRACT

Finishing using TiO2-nanosol treatment of cellulose acetate (CA) fabrics before and after the latter were pretreated with H2O2was undertaken with a view to impart unique properties to CA fabrics, notably, self-cleaning. Finishing was performed as per the pad-dry-cure method. The finishing treatment involved dispersing the nano-sized TiO2particles in a mixture of water and ethylene glycol (1:1) and application of the dispersions to CA fabrics was made under a variety of conditions. Self cleaning ability of the fabrics is favored by 1) increasing the concentration of TiO2-nanosol to certain limit; 2) prolongation of curing time up to 15 second; 3) raising the microwave power from 80% to 100% but with the certainty that power of 90% is the most proper. Besides, exposure time-to UV radiation-up to 90 minutes is essential to have remarkable self cleaning properties while keeping other technical properties, namely, strength, roughness and wettability practically unaltered. Incorporation of binder in the finishing pad-bath helps stabilizing the deposition of TiO2 with excellent self-cleaning. Pretreatment of CA fabrics with H2O2 is a pre requisite to guarantee excellent self-cleaning ability. Thermofixation and microwave fixation produces fabrics with very comparable technical properties.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

M. Ramadan, W. Raslan, E. El-Khatib and A. Hebeish, "Rendering of Cellulose Acetate Fabrics Self-Cleaning through Treatment with TiO2 Nano Particles," Materials Sciences and Applications, Vol. 3 No. 12, 2012, pp. 872-879. doi: 10.4236/msa.2012.312127.

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