Morphological study and mechanical property of epoxy-foam adhesives based on epoxy composites for automotive applications

The challenge of developing epoxy-foam adhesives for automotive applications lies in the difficulties associated with finding the optimal composition ensuring both high expansion ratio and mechanical strength. Herein, epoxy-foam adhesives based on epoxy composites were prepared and evaluated for aut...

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Bibliographic Details
Published inInternational journal of adhesion and adhesives Vol. 87; pp. 124 - 129
Main Authors Back, Jong-Ho, Hwang, Jin-Uk, Lee, Yong-Hee, Baek, Dooyoung, Park, Ji-Won, Kim, Hyun-Joong, Kim, Jong-Hak, Song, Hong-Kyu, Yoo, Min-Jae
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier Ltd 01.12.2018
Elsevier BV
Subjects
Adhesion tests
Adhesive strength
Computed tomography
Curing
Epoxides
Epoxy adhesives
Mechanical properties
Mechanical properties of adhesives
Morphology
Non-destructive testing
Polymer matrix composites
Rubber
Shear strength
Toughened adhesives
Toughened adhesives
Non-destructive testing
Mechanical properties of adhesives
Epoxides
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Summary:The challenge of developing epoxy-foam adhesives for automotive applications lies in the difficulties associated with finding the optimal composition ensuring both high expansion ratio and mechanical strength. Herein, epoxy-foam adhesives based on epoxy composites were prepared and evaluated for automotive applications. The curing behavior was studied by differential scanning calorimetry, and the morphology was characterized non-destructively by micro X-ray computed tomography. Increasing the content of rubber-modified epoxy (RME) retarded the curing reaction by increasing the expansion ratio and affected the lap shear strength. A high expansion ratio and suitable mechanical strength was observed for epoxy-foam adhesives containing 10 or 15 wt% RME.
ISSN:0143-7496
1879-0127
DOI:10.1016/j.ijadhadh.2018.09.010