Chemical Recycling of Bio-Based Epoxy Matrices Based on Precursors Derived from Waste Flour: Recycled Polymers Characterization.

ABSTRACT: This study aims to investigate the chemical recycling of two different fully recyclable bio-based epoxy matrices based on epoxidized precursors derived from waste flour. The key for their recyclability relies on the use of a cleavable hardener. In fact, the latter contains a ketal group in its chemical structure, which is cleavable in mild acetic conditions, so allowing for the breakage of the cured network. The recyclability was successfully assessed for both the two investigated formulations, with a recycling process yield ranging from 80 up to 85%. The recycled polymers presented a T_g up to 69.0 ± 0.4 °C, determined by mean of DMA and DSC analysis. Next, the TGA revealed that the thermal decomposition of the specimens primarily occurred around 320 °C and attributed to

SUBMITTER: Saitta L 

PROVIDER: S-EPMC11821098 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature