Abstract

Although Bisphenol A content in epoxy resins based on it (called Bisphenol A diglycidyl ethers, BADGE) is practically undetectable using nowadays analytical techniques, Bisphenol A is a controversial product due to its toxicology. For this reason, epoxy resins in general and composite epoxy matrices in particular are in focus of scientific and social media. We studied several alternatives both petroleum-based (e.g. trimethylolpropane or entaerythritol) and bio-based (e.g. isosorbide, lignin or sorbitol). The main objective of these BADGE alternatives is to obtain products that could be adapted to the requirements of the composite market with minor differences respect to Bisphenol A epoxy derivatives in morphological, chemical, mechanical and thermal properties.