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Impact-strength improvement of epoxy resins reinforced with a biodegradable polymer

  • Jilin Institute of Chemical Technology
  • Inha University

Research output: Contribution to journalArticlepeer-review

Abstract

Biobased epoxy materials were prepared from diglycidylether of bisphenol-A (DGEBA) and epoxidized soybean oil (ESO) with a thermally latent initiator. The effects of ESO content on the impact and adhesive strengths of the ESO-reinforced DGEBA epoxy system were investigated using several techniques and the mechanical properties of the DGEBA/ESO blends were studied by means of measurements of the flexural strength (σf) and elastic modulus (Eb). In the result, the Izod impact strength of the DGEBA/ESO blends was significantly improved with the addition of ESO, owing to high intermolecular interactions in the DGEBA/ESO blends. The adhesive lap shear strength was increased with increasing ESO content to 40 wt% ESO. The σf and Eb at low ESO contents showed similar values to those of the neat DGEBA.

Original languageEnglish
Pages (from-to)402-405
Number of pages4
JournalMaterials Science and Engineering: A
Volume478
Issue number1-2
DOIs
Publication statusPublished - 15 Apr 2008
Externally publishedYes

Keywords

  • Adhesive strength
  • Biopolymers
  • Blends
  • Impact strength
  • Soybean oil

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