Fracture toughness and impact strength of anhydride‐cured biobased epoxy | Zendy

Miyagawa Hiroaki | Zendy; Misra Manjusri | Zendy; Drzal Lawrence T. | Zendy; Mohanty Amar K. | Zendy

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Fracture toughness and impact strength of anhydride‐cured biobased epoxy

Author(s) -

Miyagawa Hiroaki,

Misra Manjusri,

Drzal Lawrence T.,

Mohanty Amar K.

Publication year - 2005

Publication title -

polymer engineering and science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 111

eISSN - 1548-2634

pISSN - 0032-3888

DOI - 10.1002/pen.20290

Subject(s) - materials science , epoxy , epoxidized soybean oil , diglycidyl ether , izod impact strength test , curing (chemistry) , composite material , toughness , linseed oil , fracture toughness , bisphenol a , raw material , organic chemistry , ultimate tensile strength , chemistry

Biobased neat epoxy materials containing functionalized vegetable oils (FVO), such as epoxidized linseed oil (ELO) and epoxidized soybean oil (ESO), were processed with an anhydride curing agent. A percentage of diglycidyl ether of bisphenol F (DGEBF) was replaced by ELO or ESO. The selection of the DGEBF, FVO, and an anhydride‐curing agent resulted in an excellent combination to produce a new biobased epoxy material having a high elastic modulus and high glass transition temperature. Izod impact strength and fracture toughness were significantly improved dependent on FVO content, which produced a phase‐separated morphology. POLYM. ENG. SCI., 45:487–495, 2005. © 2005 Society of Plastics Engineers

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