A biobased self-healing thermoset coating with a dynamic photosensitive molecule
نویسندگان
چکیده
A biobased photo-healable thermoset coating has been developed from 4 components in only 2 steps via a solvent-free process involving an epoxy/amine reaction. Its composition includes epoxidized linseed oil and dynamic molecule (4,4?-diaminodiphenyl disulfide) which, under UV irradiation, can be photolyzed reversibly. Compared to analogous material without disulfide bond, this exhibits lower crosslinking density higher elongation at break. Importantly, 100 ?m depth scratch significantly repaired light: having both thermoplastic thermosetting properties thus elaborated.
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ژورنال
عنوان ژورنال: Polymer
سال: 2021
ISSN: ['1873-2291', '0032-3861']
DOI: https://doi.org/10.1016/j.polymer.2021.123454