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PAB 모듈 적용 고분자소재의 내환경 물성 특성 변화에 관한 연구
고윤기(Younki Ko),정선경(Sunkyoung Jeoung),유승을(Seungeul Yoo),곽성복(Sungbok Kwak),김정현(Jeounghyun Kim) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
In the interior parts of the vehicle, the plastic material is popularly used in the economical and emotional aspects of passengers. The plastic component lies in the harsh environment such as high temperature, humidity variation and direct sun light. These environmental factors affect to the material characteristics and life time of plastic components in the vehicle. In this paper, the material test for the specimens made from the plastic used in the dash board in the vehicle, is carried out after aging in the various condition of temperature, humidity and ultraviolet rays. In order to investigate the aging effect on the environmental factors, the elastic modulus and stress-strain curve are obtained from the tensile tests.
이수남(Sunam Lee),조병철(Byungcheol Cho),정선경(Sunkyoung Jeoung),이평찬(Pyoungchan Lee) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
The function of headlining is to raise merchantable quality and comport to by making interior view of automotive more graceful. Preventing damage to the passenger’s head in the event of car crash could be another function of it. Moreover, it has NVH performances that decrease noise and vibration due to the rain and wind from roof and also increase quietness by absorbing noise in the car. In this study, sound-absorbing materials using melt-blown nonwoven and needle-punched nonwoven to achieve the high sound absorption performance, and then evaluated to meet a requirement for the automotive component. The test results showed that the acoustic performances of developed products having new laminated structure were better than those of the conventional product.