재귀반사시트의 Solar UV를 적용한 수명예측에 관한 연구

김창환; 한진욱; 김태진; 김군옥; Chang-Hwan Kim; Jin-Wook Han; Tae-Jin Kim; Gun-Ok Kim

Applied Chemistry for Engineering, Vol.28, No.1, 35-41, February, 2017

DOI10.14478/ace.2016.1097 Export Citation

재귀반사시트의 Solar UV를 적용한 수명예측에 관한 연구

A Study of Lifetime Prediction by Applying Solar UV Program of Retro-reflection Sheet

김창환^†, 한진욱¹, 김태진², 김군옥³

한국건설생활환경시험연구원 옥외실증시험센터
¹리플로맥스 기업부설연구소
²도레이케미칼
³한국폴리텍대학교

Chang-Hwan Kim^†, Jin-Wook Han¹, Tae-Jin Kim², and Gun-Ok Kim³

Weathering Technology Assessment Center, Korea Conformity Laboratories, Seosan-si Chungcheongnam-do 31900, Korea
¹REFLOMAX CO., LTD., Hwaseong-si, Gyeonggi-do 18525, Korea
²TORAY Chemical lnc, Anseong-si, Gyeonggi-do 17527, Korea
³Korea Polytechnic College, Anseong-si, Gyeonggi-do 17550, Korea

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초록

외부에 노출된 재료는 자외선, 열, 온도, 습도 등의 다양한 환경 인자에 의해 성능저하가 일어나게 되며, 열화속도 및 사용수명에 대한 예측은 매우 중요한 문제이다. 본 연구에서는 가장 많이 사용되고 있는 색상 중 흰색, 초록색 재귀반사시트를 가지고 미국 아리조나, 인도 첸나이, 프랑스 세너리, 한국 서산 등 4개 지역에서 옥외폭로시험 및 제논아크촉진시험을 통하여 재귀반사시트 반사성능의 변화율을 측정하였다. 서산지역 및 제논아크 촉진시험을 통하여 얻어진 반사성능 값을 통해 회귀분석을 이용하여 가속계수를 구하였다. 또한, solar uv 프로그램을 이용하여 다양한 기후지역별 가속계수를 구할 수 있었으며, 그 결과 서산지역을 기준으로 프랑스 세너리 1.04배, 미국 아리조나 1.82배, 인도 첸나이 1.92배의 가속계수를 확인할 수 있었다.

Materials exposed to outside will deteriorate due to various weathering factors such as sunlight, heat, temperature, humidity and so on. Therefore, predicting speed of degradation and life time is a very important issue. This research uses retro-reflective sheets with white and green which are most commonly used colors to conduct the outdoor exposure test and acceleration test of xenon arc in Arizona state in the United States, Chennai in India, Sanary in France and Seosan in Korea to measure the reflective performance of retro-reflection. The accelerated factor was obtained by using regression analysis through reflective values obtained from the acceleration test of xenon arc from Seosan area. Also, by using solar uv program, the accelerated factor of various climate regions were obtained and it was confirmed that the accelerated factor of Senary was 1.04, Arizona 1.82, Chennai 1.92 times higher than that of Seosan.

Keywords:retro-reflection;weathering;solar uv;accelerated factor;regression analysis

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[1] Ketola WD, Weathering testing for retro reflective sheeting a retro-perspective after 25 years of research, Proceedings of CORM 2007 Annual Conference: Optical Radiation Consensus Standards and Industry, May 8-11, USA (2007).

[2] Back J, Rhie K, Trans. Korean Soc. Automot. Eng., 20, 1 (2012)

[3] Byun DJ, WEESUR, Global exposure models for plastics material. International Workshop on Automotive Weathering Evaluation/Technology, April 1-40, Korea (2013).

[4] McGreer M, Weathering Testing Guidebook, 19-22, USA (2003).

[5] Kim DY, Kim YJ, Int. J. Reliab. Appl., 1, 79 (2001)

[6] Crump LS, Atlas Sun Spots, 3, 1 (1996)