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(현대모비스) (자동차부품연구원) (자동차부품연구원) (자동차부품연구원) (현대모비스) (현대모비스) (현대모비스) (자동차부품연구원)
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한국자동차공학회 한국자동차공학회논문집 한국자동차공학회논문집 제26권 제5호
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    초록·키워드

    Under various temperature conditions, the moisture desorption behavior of polymer materials(ASA, ABS, PMMA, PC Optic, PC HT, PC UV) used in automotive lamps was investigated. Differences in the degree of moisture desorption were identified, following the theoretical model of Fick’s second law of diffusion. Next, the parameters of the diffusion process, including diffusion coefficients and activation energy, were determined and modeled through both experimental and numerical approaches. The diffusion coefficients of moisture in the desorption process were then measured, exhibiting a linear relationship with the inverse temperature. Consequently, the results of this study were utilized to predict a change in humidity in the automotive lamps based on the relationship between humidity and diffusion coefficients.

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      UCI(KEPA) : I410-ECN-0101-2018-556-003333564