Tailorable adhesives for multi-material joining, facile repair and re-assembly

M. Haq, E. G. Koricho, A. Khomenko, R. Gerth, L. T. Drzal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Joining of materials and components is inevitable as it allows versatility in assembly and repair along with reduction in time and cost of manufacturing. This work uses 'active adhesives' that inherit all the benefits of bonded joints, such as lightweight, eliminate holes and associated stress-concentrations, and overcomes the shortcomings of disassembly and repair. Thermoplastic adhesives modified by the incorporation of electrically conductive graphene nanoplatelets at a concentration above the percolation point provide a unique synergy of mechanical, thermal and electrical properties. While the choice of the thermoplastic is governed by the desired application the addition of the graphene nanoplatelets allows energy to be deposited primarily in the adhesive. The percolated network of graphene particles in the adhesive at less than 2% can quickly couple to high frequency radiation (microwave, or MW) via non-contact methods and increase the adhesive temperature to above the required processing temperatures. The adhesive melts and flows over the adherends and upon cooling forms a structural adhesive bond. Furthermore, the process can be used to disassemble the adhesive joint if repair or reworking is required. In this work, the concept of aforementioned active adhesives was studied using varying graphene contents in nylon-6 adhesive. Activation and re-assembly was studied on in-plane (lap-shear) joints. Structural behavior of re-assembled joints was found to be similar to thermally bonded joints. Overall, active adhesives such as the ones attempted in this work have a great potential in a wide range of applications wherein in-situ repair, re-assembly and recyclability are essential.

LanguageEnglish (US)
Title of host publicationProceedings of the American Society for Composites - 30th Technical Conference, ACS 2015
PublisherDEStech Publications
ISBN (Print)9781605952253
StatePublished - 2015
Event30th Annual Technical Conference of the American Society for Composites, ASC 2015 - East Lansing, United States
Duration: Sep 28 2015Sep 30 2015

Other

Other30th Annual Technical Conference of the American Society for Composites, ASC 2015
CountryUnited States
CityEast Lansing
Period9/28/159/30/15

Profile

Joining
Adhesives
Repair
Graphite
Graphene
Thermoplastics
Adhesive joints
Stress concentration
Electric properties
Thermodynamic properties
Chemical activation
Microwaves
Cooling
Mechanical properties
Temperature
Processing

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Haq, M., Koricho, E. G., Khomenko, A., Gerth, R., & Drzal, L. T. (2015). Tailorable adhesives for multi-material joining, facile repair and re-assembly. In Proceedings of the American Society for Composites - 30th Technical Conference, ACS 2015 DEStech Publications.

Tailorable adhesives for multi-material joining, facile repair and re-assembly. / Haq, M.; Koricho, E. G.; Khomenko, A.; Gerth, R.; Drzal, L. T.

Proceedings of the American Society for Composites - 30th Technical Conference, ACS 2015. DEStech Publications, 2015.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Haq, M, Koricho, EG, Khomenko, A, Gerth, R & Drzal, LT 2015, Tailorable adhesives for multi-material joining, facile repair and re-assembly. in Proceedings of the American Society for Composites - 30th Technical Conference, ACS 2015. DEStech Publications, 30th Annual Technical Conference of the American Society for Composites, ASC 2015, East Lansing, United States, 9/28/15.
Haq M, Koricho EG, Khomenko A, Gerth R, Drzal LT. Tailorable adhesives for multi-material joining, facile repair and re-assembly. In Proceedings of the American Society for Composites - 30th Technical Conference, ACS 2015. DEStech Publications. 2015.
Haq, M. ; Koricho, E. G. ; Khomenko, A. ; Gerth, R. ; Drzal, L. T./ Tailorable adhesives for multi-material joining, facile repair and re-assembly. Proceedings of the American Society for Composites - 30th Technical Conference, ACS 2015. DEStech Publications, 2015.
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