Toughening of epoxy resins using anhydride modified epoxidized soybean oil

Santosh K. Yadav, Fengshuo Hu, John J. La Scala, Giuseppe R. Palmese

Research output: Contribution to conferencePaperpeer-review


The aim of this work is to develop of advanced biobased tougheners for thermosetting epoxy resins suitable for high-performance applications. These tougheners (bio rubbers BRs) were prepared via one-step chemical modification of epoxidized soybean oil (ESO) using biobased anhydride. To investigate their toughening performance, these BR tougheners with variable weight fractions were utilized to formulate with a bisphenol diglycidyl ether (DGEBA, commercially named EPON828) and cured with anhydride hardeners. Significant improvements of fracture toughness properties and highly retained of glass transition temperature (Tg), were observed. Scanning electron microscopy (SEM) was used to study the fracture surface morphology, it was observed that phase separation domains evenly dispersed across the fractures. Moreover, phase separation domain sizes were demonstrated to be well tunable in micrometer range by altering toughener weight fractions. These BR tougheners display the possibility of fully combining the extraordinary performance of BRs with the properties of epoxy thermosetting resins.

Original languageEnglish (US)
Number of pages12
StatePublished - 2017
Externally publishedYes
EventSAMPE Seattle 2017 Conference - Seattle, United States
Duration: May 22 2017May 25 2017


OtherSAMPE Seattle 2017 Conference
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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