화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.46, No.2, 198-207, March, 2022
DOI10.7317/pk.2022.46.2.198  Export Citation
소프트 스킨의 표면 긁힘손상 형태 분석 및 시험법 연구
Study on the Surface Form of Damaged Soft Skin and Test Method
이슬†, 이승진1, 이서진1, 이정현1, 한인수, 윤미정
  • 현대자동차 재료개발센터
  • 1FITI시험연구원 소재부품신뢰성센터
Seul Yi†, Seungjin Lee1, Seojin Lee1, Junghyun Lee1, Insoo Han, and Mijung Yoon
  • Materials Development Center, Hyundai Motor Company, Hwaseong 18280, Korea
  • 1Reliability Assessment Center, FITI Testing & Research Institute, Seoul 07791, Korea
E-mail:
초록
자동차 내장재에 적용되는 thermoplastic polyurethane(TPU) 소프트 스킨의 긁힘 손상 형태를 분석하여 메커니즘을 예측하고 이를 모사할 평가방법에 대하여 연구하였다. 우선 손상 샘플을 대표적인 형태별로 분류하였고, 손상 부위의 변화를 정밀분석하여 어떠한 원리로 외관 변화가 발생하였는지 원인을 고찰하였다. 그리고 소프트 스킨외관 품질을 관리하는 주요 방법들로 평가하였을 때의 손상 형태를 비교분석하여 샘플의 손상 형태를 모사할 수 있는 재현평가법을 도출하였다. 또한 내열 및 내광 환경 노화 시 조건 별로 시료의 화학적 변화, 긁힘 시인성을 평가하여 영향 인자를 분석하였다.
In this study, surface form of damaged soft TPU skin were analyzed to expect the mechanism and the test method which reproduce the form was researched. First, samples were characterized into several groups depending on its surface form and analyzed. Then, the principle of perception in surface change was studied. Specimens were tested by major scratch and wear resistance test methods to develop test method, which replicates surface form of damaged sample. The effects of environmental aging – thermal and UV light aging – was also studied by testing chemical change of specimens and perception of scratch depending on the aging time.
Keywords:automobile interior parts;thermopolyurethane;surface form of mar;scratch tes
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