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Amine‐randomised poly(2‐ethylhexyl acrylate) as impact and adhesive modifier for epoxy resin

Amine‐randomised poly(2‐ethylhexyl acrylate) as impact and adhesive modifier for epoxy resin The adhesive and impact properties of cured epoxy resins, modified with amine‐randomised poly(2‐ethylhexyl acrylate) (ARPEHA) liquid rubber, as a function of the concentration of the liquid rubber, have been investigated. ARPEHA was synthesised by the reaction of the carboxyl‐randomised poly(2‐ethylhexyl acrylate) (CRPEHA) liquid rubber with 4,4&vprime;‐diaminodiphenyl sulphone. CRPEHA was synthesised by solution co‐polymerisation of 2‐ethylhexyl acrylate and acrylic acid. ARPEHA modified cured epoxy resins were formed by curing with an ambient temperature‐curing agent, triethylene tetramine. The modified epoxy resins were evaluated with respect to their adhesive and impact properties. The optimum properties were obtained at around 12.5 phr (parts per hundred parts of epoxy resin) of modifier. Analysis of the fracture surface using scanning electron microscopy indicated the presence of two‐phase microstructures. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Pigment & Resin Technology Emerald Publishing

Amine‐randomised poly(2‐ethylhexyl acrylate) as impact and adhesive modifier for epoxy resin

Pigment & Resin Technology , Volume 32 (2): 9 – Apr 1, 2003

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References (26)

Publisher
Emerald Publishing
Copyright
Copyright © 2003 MCB UP Ltd. All rights reserved.
ISSN
0369-9420
DOI
10.1108/03699420310464775
Publisher site
See Article on Publisher Site

Abstract

The adhesive and impact properties of cured epoxy resins, modified with amine‐randomised poly(2‐ethylhexyl acrylate) (ARPEHA) liquid rubber, as a function of the concentration of the liquid rubber, have been investigated. ARPEHA was synthesised by the reaction of the carboxyl‐randomised poly(2‐ethylhexyl acrylate) (CRPEHA) liquid rubber with 4,4&vprime;‐diaminodiphenyl sulphone. CRPEHA was synthesised by solution co‐polymerisation of 2‐ethylhexyl acrylate and acrylic acid. ARPEHA modified cured epoxy resins were formed by curing with an ambient temperature‐curing agent, triethylene tetramine. The modified epoxy resins were evaluated with respect to their adhesive and impact properties. The optimum properties were obtained at around 12.5 phr (parts per hundred parts of epoxy resin) of modifier. Analysis of the fracture surface using scanning electron microscopy indicated the presence of two‐phase microstructures.

Journal

Pigment & Resin TechnologyEmerald Publishing

Published: Apr 1, 2003

Keywords: Epoxy coatings; Adhesives; Physical properties

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