Manufacturing and Performance Evaluation of Soy Protein Based Plastics and Composites Phase I

The objective of this research is to manufacture composite products using soy-based resin system. A novel soy-based resin, Epoxidized Allyl Soyate (EAS) has been synthesized and evaluated at the University of Missouri, Rolla. The EAS resin, in general, is more ductile and exhibits higher strains to failure without a significant reduction in modulus as compared to the base Epon Shell resin. The suitability of using EAS resin is being investigated to manufacture environmentally-benign composite structures. Pultruded composite samples with improved soy resin formulations have been manufactured. Soy-based resin is ideal for pultrusion process since it increases the line speed and reduces the pull force. Mechanical tests of pultruded coupons indicate that the resin system can be used to manufacture high performance pultruded composites. Glass fiber reinforced composite panels were manufactured using three different resin systems: pure Epon, 25% EAS and 50% EAS. Low velocity impact tests were performed on these specimens at different impact energy levels. The effect of soy resin content on the contact force is presented. The contact force for pure Epon composite specimens is the highest and is followed by 25% EAS and 50% EAS resin systems. As the concentration of soy resin increase, the contact force decreases. A lower contact force results in smaller values of local stresses in the specimen resulting in lesser damage. Also, the specimens with EAS had smaller damages as compared to pure Epon specimens.

  • Supplemental Notes:
    • This research was supported by a grant from the U.S. Department of Transportation, University Transportation Centers program.
  • Corporate Authors:

    University of Missouri, Rolla

    Center for Infrastructure Engineering Studies
    1870 Miner Circle Drive
    Rolla, MO  United States  65409

    Research and Special Programs Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Chandrashekhara, K
  • Publication Date: 2005-6


  • English

Media Info

  • Media Type: Print
  • Edition: Final Report
  • Features: Figures;
  • Pagination: 3p

Subject/Index Terms

Filing Info

  • Accession Number: 01005796
  • Record Type: Publication
  • Report/Paper Numbers: UTC R134, Report No. 00001406
  • Contract Numbers: DTRS98-G-0021 (Grant)
  • Files: UTC, TRIS, USDOT
  • Created Date: Oct 7 2005 11:01PM