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Dissimilar Materials Bonding Using Epoxy Monolith
[Image: see text] The epoxy monolith with a highly porous structure is fabricated by the thermal curing of 2,2-bis(4-glycidyloxyphenyl)propane and 4,4′-methylenebis(cyclohexylamine) in the presence of poly(ethylene glycol) as the porogen via polymerization-induced phase separation. In this study, we...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6644695/ https://www.ncbi.nlm.nih.gov/pubmed/31458909 http://dx.doi.org/10.1021/acsomega.8b00920 |
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author | Sugimoto, Yuka Nishimura, Yukihiro Uehara, Fai Matsumoto, Akikazu |
author_facet | Sugimoto, Yuka Nishimura, Yukihiro Uehara, Fai Matsumoto, Akikazu |
author_sort | Sugimoto, Yuka |
collection | PubMed |
description | [Image: see text] The epoxy monolith with a highly porous structure is fabricated by the thermal curing of 2,2-bis(4-glycidyloxyphenyl)propane and 4,4′-methylenebis(cyclohexylamine) in the presence of poly(ethylene glycol) as the porogen via polymerization-induced phase separation. In this study, we demonstrated a new type of dissimilar material bonding method for various polymers and metals coated with the epoxy monolith. On the basis of scanning electron microscopy (SEM) observations, the pore size and number of epoxy monoliths were evaluated to be 1.1–114 μm and 8.7–48 200 mm(–2), respectively, depending on the ratio of the epoxy resin and cross-linking agent used for the monolith fabrication. Various kinds of thermoplastics, such as polyethylene, polypropylene, polyoxymethylene, acrylonitrile–butadiene–styrene copolymer, polycarbonate bisphenol-A, and poly(ethylene terephthalate), were bonded to the monolith-modified metal plates by thermal welding. The bond strength for the single lap-shear tensile test of stainless steel and copper plates with the thermoplastics was in the range of 1.2–7.5 MPa, which was greater than the bond strength value for each bonding system without monolith modification. The SEM observation of fractured test pieces directly confirmed an anchor effect on this bonding system. The elongated deformation of the plastics that filled in the pores of the epoxy monolith, was observed. It was concluded that the bond strength significantly depended on the intrinsic strength of the used thermoplastics. The epoxy monolith bonding of hard plastics, such as polystyrene and poly(methyl methacrylate), was performed by the additional use of adhesives, solvents, and a reactive monomer. The epoxy monolith sheets were also successfully fabricated and applied to dissimilar material bonding. |
format | Online Article Text |
id | pubmed-6644695 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-66446952019-08-27 Dissimilar Materials Bonding Using Epoxy Monolith Sugimoto, Yuka Nishimura, Yukihiro Uehara, Fai Matsumoto, Akikazu ACS Omega [Image: see text] The epoxy monolith with a highly porous structure is fabricated by the thermal curing of 2,2-bis(4-glycidyloxyphenyl)propane and 4,4′-methylenebis(cyclohexylamine) in the presence of poly(ethylene glycol) as the porogen via polymerization-induced phase separation. In this study, we demonstrated a new type of dissimilar material bonding method for various polymers and metals coated with the epoxy monolith. On the basis of scanning electron microscopy (SEM) observations, the pore size and number of epoxy monoliths were evaluated to be 1.1–114 μm and 8.7–48 200 mm(–2), respectively, depending on the ratio of the epoxy resin and cross-linking agent used for the monolith fabrication. Various kinds of thermoplastics, such as polyethylene, polypropylene, polyoxymethylene, acrylonitrile–butadiene–styrene copolymer, polycarbonate bisphenol-A, and poly(ethylene terephthalate), were bonded to the monolith-modified metal plates by thermal welding. The bond strength for the single lap-shear tensile test of stainless steel and copper plates with the thermoplastics was in the range of 1.2–7.5 MPa, which was greater than the bond strength value for each bonding system without monolith modification. The SEM observation of fractured test pieces directly confirmed an anchor effect on this bonding system. The elongated deformation of the plastics that filled in the pores of the epoxy monolith, was observed. It was concluded that the bond strength significantly depended on the intrinsic strength of the used thermoplastics. The epoxy monolith bonding of hard plastics, such as polystyrene and poly(methyl methacrylate), was performed by the additional use of adhesives, solvents, and a reactive monomer. The epoxy monolith sheets were also successfully fabricated and applied to dissimilar material bonding. American Chemical Society 2018-07-09 /pmc/articles/PMC6644695/ /pubmed/31458909 http://dx.doi.org/10.1021/acsomega.8b00920 Text en Copyright © 2018 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Sugimoto, Yuka Nishimura, Yukihiro Uehara, Fai Matsumoto, Akikazu Dissimilar Materials Bonding Using Epoxy Monolith |
title | Dissimilar Materials Bonding Using Epoxy Monolith |
title_full | Dissimilar Materials Bonding Using Epoxy Monolith |
title_fullStr | Dissimilar Materials Bonding Using Epoxy Monolith |
title_full_unstemmed | Dissimilar Materials Bonding Using Epoxy Monolith |
title_short | Dissimilar Materials Bonding Using Epoxy Monolith |
title_sort | dissimilar materials bonding using epoxy monolith |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6644695/ https://www.ncbi.nlm.nih.gov/pubmed/31458909 http://dx.doi.org/10.1021/acsomega.8b00920 |
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