TY - CONF
T1 - Toughening of epoxy resins using anhydride modified epoxidized soybean oil
AU - Yadav, Santosh K.
AU - Hu, Fengshuo
AU - La Scala, John J.
AU - Palmese, Giuseppe R.
N1 - Funding Information:
We would like to acknowledge financial support from Nanotechnology Institute (NTI) of the Ben Franklin Technology Partners of Southeastern Pennsylvania for the project entitled "Nanoscale toughening of epoxy resins using bio-based additives” as well as SERDP ESTC WP-0167.
Publisher Copyright:
© Copyright 2017. Used by the Society of the Advancement of Material and Process Engineering with permission.
PY - 2017
Y1 - 2017
N2 - 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.
AB - 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.
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M3 - Paper
AN - SCOPUS:85044626090
SP - 1536
EP - 1547
T2 - SAMPE Seattle 2017 Conference
Y2 - 22 May 2017 through 25 May 2017
ER -