hrvatski

Aplikacija TiO2 nanodelcev za UV zaščito tekstilnih materialov za senčila

Ozone layer over Europe has been periodically thinned and its recuperation is expected not before mid 21st century, so the investigations proposed by this paper initiated by the fact that people in Europe have been exposed to the harmful impact of sunlight and the need for personal protection by adequate textile materials of high UV protective properties for clothing and shade structures such as tents, awnings, sunshades or umbrellas. When dealing with shade structures the protective material is typically at some distance from the occupant and may allow UVR directly from the sun, scattered from the open sky or from reflecting surfaces. Following the contemporary development trends of textile materials exhibiting new properties associated with the modification of existing and functionalisation of additional surface properties using nanotechnology, the paper will study the efficiency of the UV protective fabrics obtained in the innovative way – by the application of TiO2 nanoparticles. UV protective properties of untreated and TiO2 treated white polyester and grey cotton fabric samples, with different construction characteristic, were evaluated according UV Standard 801:1999 issued by the International Testing Association for Applied UV Protection, which include testing program for shading textiles. The aim of work is also to determine durability of protective properties for the tested materials under real conditions of use and establish the resistance of treated shade materials to the action of weather during tree month long outdoor exposure. Therefore, UV permeability trough the shade materials, before and after weathering, were obtained by measuring of mean UVA, UVB transmittance and UPF values employing AS/NZS 4399:1996. The results obtained by investigation indicate considerable increasing of UV protective properties of all investigated undyed fabric samples treated with TiO2 nanoparticles and excellent fastness to weathering as well. Because approved suitableness of tested textile materials application for the end-use proposed, there is a fair chance of implementing the obtained results in practice.

zaščitna senčila; UV zaščitne tkanine; titanov dioksid; UZF; naravno starenje

Sažetak je napisan na engleskom i slovenskom jeziku, a cjeloviti rad na hrvatskom jeziku.

engleski

Application of TiO2 Nanoparticles for UV Protective Shade Textile Materials

Ozone layer over Europe has been periodically thinned and its recuperation is expected not before mid 21st century, so the investigations proposed by this paper initiated by the fact that people in Europe have been exposed to the harmful impact of sunlight and the need for personal protection by adequate textile materials of high UV protective properties for clothing and shade structures such as tents, awnings, sunshades or umbrellas. When dealing with shade structures the protective material is typically at some distance from the occupant and may allow UVR directly from the sun, scattered from the open sky or from reflecting surfaces. Following the contemporary development trends of textile materials exhibiting new properties associated with the modification of existing and functionalisation of additional surface properties using nanotechnology, the paper will study the efficiency of the UV protective fabrics obtained in the innovative way – by the application of TiO2 nanoparticles. UV protective properties of untreated and TiO2 treated white polyester and grey cotton fabric samples, with different construction characteristic, were evaluated according UV Standard 801:1999 issued by the International Testing Association for Applied UV Protection, which include testing program for shading textiles. The aim of work is also to determine durability of protective properties for the tested materials under real conditions of use and establish the resistance of treated shade materials to the action of weather during tree month long outdoor exposure. Therefore, UV permeability trough the shade materials, before and after weathering, were obtained by measuring of mean UVA, UVB transmittance and UPF values employing AS/NZS 4399:1996. The results obtained by investigation indicate considerable increasing of UV protective properties of all investigated undyed fabric samples treated with TiO2 nanoparticles and excellent fastness to weathering as well. Because approved suitableness of tested textile materials application for the end-use proposed, there is a fair chance of implementing the obtained results in practice.

shade structures; UV protective woven fabrics; titanium dioxide; UPF; weathering

Sažetak je napisan na engleskom i slovenskom jeziku, a cjeloviti rad na hrvatskom jeziku.