Composites Research

The Korean Society for Composite Materials (한국복합재료학회)
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Improvement on Interfacial, Thermal, and Water Resistance Properties of Wood Sandwich Composites for Stone Bed using CNT-Animal Glue Adhesive

탄소나노튜브/아교 접착제를 이용한 돌침대용 목재 샌드위치 복합재의 계면, 열적 및 방수특성 증가

  • Kim, Jong-Hyun (Department of Materials Engineering and Convergence Technology, Center for Creative Human Resource & Convergence Materials, Engineering Research Institute, Gyeongsang National University) ;
  • Kwon, Dong-Jun (Department of Materials Engineering and Convergence Technology, Center for Creative Human Resource & Convergence Materials, Engineering Research Institute, Gyeongsang National University) ;
  • Shin, Pyeong-Su (Department of Materials Engineering and Convergence Technology, Center for Creative Human Resource & Convergence Materials, Engineering Research Institute, Gyeongsang National University) ;
  • Baek, Yeong-Min (Department of Materials Engineering and Convergence Technology, Center for Creative Human Resource & Convergence Materials, Engineering Research Institute, Gyeongsang National University) ;
  • Park, Ha-Seung (Department of Materials Engineering and Convergence Technology, Center for Creative Human Resource & Convergence Materials, Engineering Research Institute, Gyeongsang National University) ;
  • Moon, Sun-Ok (Major of Environmental Materials Science, Institute of Agriculture and Life Science Gyeongsang National University) ;
  • Park, Joung-Man (Department of Materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
  • Received : 2017.05.05
  • Accepted : 2017.08.30
  • Published : 2017.08.31
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Abstract

Animal glue, a water-soluble adhesive, has been used historically for high-performance traditional furniture despite the disadvantage of weakness against moisture. Many scientists studied the ways to improve water resistance of animal glue. Improvements on the interfacial, thermal, and water resistance properties of wood sandwich composites (WSC) was studied with carbon nanotube (CNT) wt% in animal glue. Real-time temperature of WSC was measured after WSC was heated with increasing CNT wt%. Lap shear test was performed to determine the interfacial properties of wood and animal glue with CNTs. Water resistance properties of animal glue were determined by lap shear test using specimens dipped in water and the results were compared with the dry case. Hydrophobicity of animal glue by static contact angle was correlated with the variation of lap shear test. Interfacial, thermal, and water resistance properties for animal glue were improved with properly added CNTs.

아교는 수용성을 띄는 접착제로, 이 특징에 의해 물에 약하다는 단점에도 불구하고 전통적인 고가구에 많이 사용되어 왔다. 이러한 단점을 개선하기 위하여 많은 연구가 진행되고 있다. 본 연구에서는 탄소나노튜브를 도입에 따른 아교의 계면특성 및 열적특성 그리고 방수특성 개선에 대한 연구를 진행하였다. 탄소나노튜브의 비율이 증가함에 따라 아교를 이용하여 접착한 돌침대용 목재 샌드위치 판 상부의 실시간 온도측정을 진행하였다. 나무와 아교접착제 간의 계면특성의 변화를 알아보기 위하여 랩 전단 실험을 실시하였고, 습도가 높아짐에 따라 물성이 약해지는 아교의 단점을 개선하기 위하여 탄소나노튜브를 도입에 따른 아교의 방수특성이 개선되는지 대한 실험을 진행하였다. 랩 전단시편을 물에 담근 후 랩 전단 실험을 진행하여 기존의 결과와 비교하여 차이가 얼마나 나는지 비교하였다. 이를 증명하기 위하여 물과의 정적 접촉각을 이용해 탄소나노튜브의 함량에 따른 아교접착제의 소수성 정도를 비교하였다. 실험결과 아교 접착제에 탄소나노튜브를 도입으로 계면특성, 열적특성 및 방수특성이 개선되었다.

Keywords

References

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