Effect of Epoxidized Soybean Oil on Curing, Rheological, Mechanical and Thermal Properties of Aromatic and Aliphatic Epoxy Resins

• Published in: Journal of polymers and the environment Vol. 22; no. 4; pp. 525 - 536
• Main Authors: Niedermann, Péter, Szebényi, Gábor, Toldy, Andrea
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-12-2014; Springer; Springer Nature B.V
• Subjects: Aliphatic compounds; Applied sciences; Bisphenol A; Chemical properties; Chemistry; Chemistry and Materials Science; Curing; Environmental Chemistry; Environmental Engineering/Biotechnology; Epoxy resins; Exact sciences and technology; Glass transition temperature; Heat conductivity; Hybrid systems; Industrial Chemistry/Chemical Engineering; Materials Science; Mechanical properties; Mineral oils; Original Paper; Polymer industry, paints, wood; Polymer Sciences; Polymers; Properties and testing; Resins; Soybean oil; Soybeans; Technology of polymers; Thermal properties; Transition temperatures; Vegetable oils; Partially bio-based hybrid epoxy resins; Curing; Mechanical properties; Epoxidized soybean oil; Glass transition temperature; Epoxy resin; Composition effect; Organic anhydride; Curing (plastics); Experimental study; Renewable resources; Thermal stability; Binary mixture; Triester; Dynamic mechanical properties; Gel point; Morphology; Chemical reactivity; Comparative study
• ISSN: 1566-2543; 1572-8919; 1572-8900
• DOI: 10.1007/s10924-014-0673-8

In order to facilitate the application of bio-based resins in more demanding advanced sectors as electrical and aeronautical industry, a systematic study was carried out to characterize the effect of epoxidized soybean oil (ESO), one of the most commonly used bio-based resins, on curing and rheological behavior, glass transition temperature, mechanical and thermal properties in various epoxy resin systems. Besides the conventional, widely investigated aromatic diglycidylether of bisphenol-A (DGEBA) resin, a glycerol- and a pentaerythritol-based aliphatic resin was chosen as base resin, whose synthesis is feasible from renewable materials as well, in the end leading to full replacement of mineral oil based resins by renewable sourced ones. In the hybrid resin system the ESO content was systematically increased from 0 to 100 mass%. The results indicate that in the case of the DGEBA containing hybrid systems the overall performance deteriorates with increasing ESO-content, while in the case of the aliphatic resins the glass transition temperature increases.