Nanotechnology Now - Press Release: Self-Cleaning Woolen Fabrics Produced in Iran

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Abstract:
Iranian researchers produced woolen fabrics at laboratorial scale, which have antibacterial and antifungal properties.

Self-Cleaning Woolen Fabrics Produced in Iran

Tehran, Iran | Posted on July 21st, 2015

The produced samples show self-cleaning properties too under the radiation of sunlight.

Woolen products are very good sources for the growth of bacteria and microorganisms due to their protein structure, and they are sensitive to alkaline and sunlight, and they have strength limitations.

According to Amir Behzadnia, one of the researchers, this study was carried out aiming to improve the properties of woolen products through special finishing process, including increasing the self-cleaning, antibacterial, antifungal, acidic and alkaline resistance. This objective was achieved by creating a homogenous coating made of a nanocomposite of zinc oxide/nitrogen – silver (N-Ag/ZnO) on the fabrics.

Based on the results, the processing of the woolen fabric samples by using optimum amount of honeycomb nanocomposite such as N-Ag/ZnO improves the biological, mechanical and hydrophilicity of the fabrics. Among the other advantages of the use of this nanocomposite in the production of fabrics, mention can be made of creating a delay in flammability, increasing the whiteness degree and decreasing the alkaline and acidic solubility without creating the cellular toxicity.

Results of the research have applications in textile, polymer, and ceramic industries and in other applicable surfaces. They can also be used in medical and military industries.

Ultrasonic bath has been used in the finishing process of the fabrics. By using the bath, the process is carried out in one stage at low temperature at shorter time. Ultrasonic waves are also the cause of the homogenous distribution of simultaneous charges of silver and nitrogen on the surfaces of zinc oxide nanoparticles. Finally, the abovementioned properties are created in the final product by processing of the woolen fabrics with the nanocomposite.

Results of the research have been published in Ultrasonics Sonochemistry, vol. 27, issue 1, 2015, pp. 200-209.

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