Physicochemical Properties and Fracture Behavior of Soy-Based Resin

Abstract

A soy-based resin was prepared by the process of transesterfication and epoxidation of regular food-grade soybean oil. The soy-based resin was used as a reactive diluent and also as a replacement of bisA epoxy resin in an anhydride-cured polymer. The curing efficiency of soy epoxy resin was studied using differential scanning calorimetry. Physicochemical properties and fracture behavior of soy-based resin polymers were studied using dynamic mechanical analysis and fracture toughness measurements, respectively. Toughness measurements were carried out using the compact tension geometry following the principles of linear elastic fracture mechanics. Tests showed that the addition of soy-based epoxy resin to the base epon resin improved the toughness of the blend. Morphology of the fractured specimens has been analyzed by scanning electron microscopy. The soy-based resins hold great potential for environmentally friendly, renewable resource based, and low cost materials for structural applications. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007

Department(s)

Mechanical and Aerospace Engineering

Sponsor(s)

National Science Foundation (U.S.)

Keywords and Phrases

Crosslinking Density; Fracture Toughness; Soy Resin

International Standard Serial Number (ISSN)

0021-8995

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2007 John Wiley & Sons, Ltd., All rights reserved.

Publication Date

01 Jan 2007

Link to Full Text

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