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http://dx.doi.org/10.5762/KAIS.2019.20.8.174

A Study on the Property Change of the Transparent Film for Vehicle Cover according to Weathering Test  

Kim, Ji-Hoon (Defense Agency for Technology and Quality, Combat Material Center)
Kim, Byung-Soon (Defense Agency for Technology and Quality, Combat Material Center)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.20, no.8, 2019 , pp. 174-180 More about this Journal
Abstract
In this study, we evaluated and analyzed the properties of polymeric transparent films used in military vehicle covers according to weathering test. Two types of polymer films (Film A and Film B) that are mostly used for military vehicle covers were selected. The weathering treatment condition and tester are described in KS K 0706, and the following weathering times were tested: 0hour, 40hours, 160hours and 320 hours. The tensile strength, elongation and thermal decomposition behavior and optical characteristics were analyzed. The tensile strength tended to decrease - increase - decrease with increasing weathering treatment time in both transparent films. The thermal decomposition temperature gradually decreased. Regarding the optical property, the light transmittance decreased and the haze tended to increase. However, film A showed almost similar optical characteristics after 160-hour weathering treatment.
Keywords
Vehicle Cover; Weathering Test; Polymer; Transparent Film; Light Transmission;
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