Influence of aliphatic amine epoxy hardener on the adhesive properties of blends of mono-carboxyl-terminated poly(2-ethylhexyl acrylate-co-methyl methacrylate) with epoxy resin

The adhesive properties have been investigated in blends of mono‐carboxyl‐terminated poly(2‐ethylhexyl acrylate‐co‐methyl methacrylate) with diglycidyl ether of bisphenol A and three different aliphatic amine epoxy hardener. The adhesives properties are evaluated in steel alloy substrate using singl...

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Bibliographic Details
Published in:Journal of applied polymer science 2010-09, Vol.117 (5), p.2762-2770
Main Authors: González Garcia, Filiberto, Soares, Bluma Guenther, Leyva, Maria Elena, Simões, Alexandre Zirpoli
Format: Article
Language:English
Subjects:
Adhesives
aliphatic amine
Aliphatic amines
Application fields
Applied sciences
Blends
cavitation
cohesive fracture
epoxy adhesive
Epoxy resins
Exact sciences and technology
Hardeners
lap shear
Physical properties
Polymer blends
Polymer industry, paints, wood
Polymerization
Properties and testing
Shear tests
Surface properties
Technology of polymers
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Summary:The adhesive properties have been investigated in blends of mono‐carboxyl‐terminated poly(2‐ethylhexyl acrylate‐co‐methyl methacrylate) with diglycidyl ether of bisphenol A and three different aliphatic amine epoxy hardener. The adhesives properties are evaluated in steel alloy substrate using single‐lap shear test. The copolymers are initially miscible in the stoichiometric blends of epoxy resin and hardener at room temperature. Phase separation is noted in the course of the polymerization reaction. Different morphologies are obtained according to the amine epoxy hardener. The most effective adhesive for steel–steel joints in single‐lap shear test is the blends using 1‐(2‐aminoethyl)piperazine (AEP) as hardener. This system shows the biggest lap shear strength. However, the modified adhesives show a reduction in the mechanical resistance. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
ISSN:0021-8995
1097-4628
1097-4628
DOI:10.1002/app.31720