자외선을 처리한 목재 플라스틱 복합재의 물리 및 역학적 성질 평가

• 영문명: Evaluation on Physical and Mechanical Properties of Wood Plastic Composites Treated under Ultraviolet Irradiation
• 발행기관: 한국가구학회
• 저자명: 이종신(Jong-Shin Lee) 김성준(Soung-Joon Kim)
• 간행물 정보: 『한국가구학회지』제26권 제4호, 428~434쪽, 전체 7쪽
• 주제분류: 예술체육 > 미술
• 파일형태: PDF
• 발행일자: 2015.01.30

영문 초록

In this study, we received each wood plastic composites (WPC) from three manufacturers. These WPCs were evaluated regarding their physical and mechanical properties of both before and after accelerated weathering by ultraviolet (UV) irradiation. The total time of exposure of the WPCs to UV irradiation was 1800 h. The water absorption, volumetric swelling and shrinkage of WPCs did not affected by UV irradiation. Among the mechanical properties, there was no significant differences in bending strength and screw withdrawal resistance of UV treated WPCs compared with those of reference WPCs. However, surface hardness of WPCs showed decrease under UV irradiation. Stereoscopic microscopy observation revealed deterio-ration of the surface layer polymer in all weathered WPCs by UV. Exposure of the WPCs to UV irradiation caused decomposition and disappearance of the polymer layer. From this result, we can estimate that damage of polymer by UV led to a decrease in the surface hardness of the WPCs. The wood flours retained original shape after accelerated weathering by UV irradiation.

목차

Ⅰ. 서론

Ⅱ. 재료 및 방법

Ⅲ. 결과 및 고찰

Ⅳ. 결론

참고문헌

키워드

wood plastic composites accelerated weathering UV irradiation physical properties mechanical properties