Advanced Search  
JWJ > Volume 33(4); 2015 > Article
Journal of Welding and Joining 2015 August;33(4) :44-49.
Published online August 31, 2015.
doi:https://doi.org/10.5781/JWJ.2015.33.4.44
The Effect of Nano Functionalized Block Copolymer Addition on the Joint Strength of Structural Epoxy Adhesive for Car Body Assembly
Hye-rim Lee*,**, So-jeong Lee*, Chang-young Lim***, Jong-dock Seo***, Mok-soon Kim**, Jun-ki Kim*
*Welding & Joining R&D Group/Micro-Joining Center, KITECH, Incheon 406-840, Korea
**School of Materials Science & Engineering, Inha University, Incheon 402-751, Korea
***Technical Research Laboratories, Shinyoung Co., Ltd., Yeongcheon 770-150, Korea
Correspondence: Jun-ki Kim  Email: dggge@kitech.re.kr
  Published online August 31, 2015
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.
Keywords: Structural epoxy adhesive | Nano functionalized block copolymer | Car body assembly | Single lap shear strength | T-peel strength | Impact peel strength
TOOLS
PDF Links  PDF Links
Full text via DOI  Full text via DOI
Download Citation  Download Citation
CrossRef TDM  CrossRef TDM
  E-Mail
Share:      
METRICS
0
Crossref
935
View
7
Download
Related articles
The Effect of Zirconate Addition on the Joint Properties of Epoxy Adhesive for Car Body Assembly  2013 October;31(5)
Effect of Curing Agent on the Curing Behavior and Joint Strength of Epoxy Adhesive  2011 August;29(4)
The Effect of Zirconate Addition on the Joint Properties of Epoxy Adhesive for Car Body Assembly  2013 October;31(5)
Effect of Curing Agent on the Curing Behavior and Joint Strength of Epoxy Adhesive  2011 August;29(4)
e-sciencecentral
Register for e-submission
Register here to access the e-submission system of Journal of Welding and Joining for authors and reviewers.
Manuscript Submission
To submit a manuscript, please visit the Journal of Welding and Joining e-submission management system at http://submit.e-jwj.org, read the Instructions for Authors, and log into the Journal of Welding and Joining e-submission system. For assistance with manuscript submission, please contact: koweld@kwjs.or.kr.
Free archive
Anyone may access any past or current articles without logging in.
Editorial Office
The Korea Science and Technology Building, New B/D, Room 503
Teheran-ro 7-gil, 22(635-4, Yeoksam-Dong), Gangnam-gu, Seoul 06130, Korea
TEL : +82-2-538-6511    FAX : +82-2-538-6510   E-mail: koweld@kwjs.or.kr
Browse Articles |  Current Issue |  For Authors and Reviewers |  About
Copyright© by The Korean Welding and Joining Society. All right reserved.