차체 구조용 에폭시 접착제의 접합강도에 미치는 나노 기능성 블록공중합체 첨가의 영향

다국어 초록 (Multilingual Abstract)

The structural epoxy adhesive used in car body assembly needs the highest level of joint mechanical strength under lap shear, T-peel and impact peel conditions. In this study, the effect of nano functionalized block copolymer addition on the impact peel strength of epoxy adhesive was investigated. DSC analysis showed that the addition of nano functionalized block copolymer did not affect the curing reaction of epoxy adhesive. From single lap shear test, it was found out that the addition of nano functionalized block copolymer slightly decreased the cohesive strength of cured adhesive layer. The addition of nano functionalized block copolymer showed beneficial effect on T-peel strength by changing the adhesive failure mode to the mixed mode. However, the addition of nano functionalized block copolymer just decreased the room temperature impact peel strength. It was considered that the addition of nano functionalized block copolymer could have effect on disturbing the crack propagation only for the case of slow strain rate.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 실험 방법
• 3. 결과 및 고찰
• 4. 결론
• References

참고문헌 (Reference)

1 최두열, "자동차용 강재의 접합기술 동향" 대한용접접합학회 27 (27): 7-12, 2009

2 Y. Goda, "Study on the Effect of Strain Rate of Adhesive Material on the Stress State in Adhesive Joints" 87 (87): 766-779, 2011

3 T. Satob, "On the development of structural adhesive technology for the automotive body in japan" 17 (17): 165-178, 1996

4 T. A. Barnes, "Joining techniques for aluminium spaceframes used in automobiles part II - adhesive bonding and mechanical fasteners" 99 (99): 72-79, 2000

5 M. Ghaemy, "Effect of nanosilica on the kinetics of cure reaction and thermal degradation of epoxy resin" 141-148, 2011

6 J. Tarrio-Saayedra, "Controversial effects of fumed silica on the curing and thermomechanical properties of epoxy composites" 382-395, 2010

7 A. Beevers, "Analysis of stiffness of adhesive joints in car bodies" 118 : 96-101, 2001