Journal of the American Oil Chemists' Society

, Volume 90, Issue 3, pp 449–457 | Cite as

Study of the Properties of Thermoset Materials Derived from Epoxidized Soybean Oil and Protein Fillers

  • Vicent Fombuena
  • Sánchez-Nácher L
  • Samper MD
  • Juárez D
  • Balart R
Original Paper

Abstract

Novel bio-based thermoset formulations were prepared by using epoxidized soybean oil (ESBO), nadic methyl anhydride as a hardener and with different types of proteins as fillers. In the first part of the study, the effect of the protein-type (wheat gluten, soy protein, casein and ovalbumin) on cured ESBO materials was investigated. Thermal and mechanical properties were characterized by flexural tests, Shore D hardness, Charpy impact tests, Vicat softening temperature and heat deflection temperature. In addition, a study of the morphology of fractured surfaces by scanning electron microscopy was carried out. In general, the addition of protein-based fillers improved the mechanical and thermal properties. It was found that the highest increase of thermal and mechanical properties was achieved by ovalbumin. In the second part of the work, the effect of the total amount of ovalbumin filler was studied. Bio-based thermoset materials from ESBO and 15 wt % ovalbumin improved flexural modulus more than 150 % when compared to the unfilled material. Similar evolution was observed for other mechanical properties. Moreover, the brittleness of this composition was the minimum from the studied systems. A direct relationship between energy absorption capacity and morphologies of the failure surface was evidenced by SEM.

Keywords

Polymers Oilseeds Seed proteins 

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Copyright information

© AOCS 2012

Authors and Affiliations

  • Vicent Fombuena
    • 1
  • Sánchez-Nácher L
    • 1
  • Samper MD
    • 1
  • Juárez D
    • 1
  • Balart R
    • 1
  1. 1.Instituto de Tecnología de Materiales (ITM)Universitat Politècnica de València (UPV)AlcoySpain

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