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http://dx.doi.org/10.5764/TCF.2013.25.2.126

Improving the Photo-stability of p-aramid Fiber by TiO2 Nanosol  

Park, Sung-Min (Korea Dyeing & Finishing Technology Institute)
Kwon, Il-Jun (Korea Dyeing & Finishing Technology Institute)
Sim, Ji-Hyun (Korea Dyeing & Finishing Technology Institute)
Lee, Jae-Ho (Korea Dyeing & Finishing Technology Institute)
Kim, Sam-Soo (Department of Textile Engineering and Technology, Yeungnam University)
Lee, Mun-Cheul (Department Organic Materials Science and Engineering, Pusan National University)
Choi, Jong-Seok (Mi Kwang Dyetech Co., LTD.)
Publication Information
Textile Coloration and Finishing / v.25, no.2, 2013 , pp. 126-133 More about this Journal
Abstract
Although para-aramid fibers poss higher mechanical properties, they show very low resistance to sunlight exposure. This paper studied on the effect of nano-sol coated $TiO_2$ to improve the photo-stability of p-aramid fibers. Titanium dioxides were prepared by sol-gel method from titanium iso-propoxide at different R ratio ($H_2O$/titanium iso-propoxide). All samples were characterized by XRD, TEM and UV-vis spectrometer. The mechanical properties of p-aramid fabrics by $TiO_2$ nano-sol coating before and after sunlight irradiation were measured with tensile tester. XRD pattern of titanium dioxide particles was observed by mixing phase together with rutile and anatase type. The results showed, after sunlight irradiation, the decreased mechanical properties of the fiber. Furthermore, the sunlight irradiation obviously deteriorated the surface and defected areas of the fiber severely by photo-induced chain scission and end group oxidation in air.
Keywords
$TiO_2$ nanosol; sol-gel method; photo-stability; p-aramid fiber; anti-UV ability;
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Times Cited By KSCI : 2  (Citation Analysis)
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