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Fabrication of mechanically robust urushiol-based polymer coatings with excellent self-healing property and hydrophobicity.
- Source :
-
Progress in Organic Coatings . Jan2023, Vol. 174, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- It is of great significance yet challenging to develop functional polymer coatings possessing highly efficient self-healing performances and robust mechanical properties simultaneously. To this end, a novel strategy was proposed for the fabrication of self-healing urushiol-based coatings based on Diels-Alder (DA) bond. Natural urushiol was firstly modified by using epichlorohydrin and furfuryl alcohol, and then crosslinked by N,N′-(4,4′-methylenediphenyl) dimaleimide (BMI) via DA bond to obtain the thermally reversible and self-healing bio-based coating. The synthesized products were characterized, and their thermostabilities, physico-mechanical properties, thermal reversible and self-healing performances were investigated in detail. The results showed that the ratio of urushiol furan derivative to bismaleimide had a significant effect on the studied properties of the self-healing coatings. The self-healing efficiency, hardness, contact angle of the as-prepared coating after formulation optimization can reach 83.22 %, 5H and 109.6°, respectively. This work suggested that natural urushiol was a kind of potential excellent raw material for preparing self-healing coating, and also provided a simple and efficient way to fabricate bio-based self-healing coatings with robust hardness and good hydrophobic characteristic. [Display omitted] • Self-healing urushiol-based coatings were fabricated based on Diels-Alder reaction. • The self-healing performance of the coating depended on the prepolymer formula. • The urushiol-based coating exhibited excellent mechanical properties. • The urushiol-based self-healing coating had good hydrophobic characteristic. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03009440
- Volume :
- 174
- Database :
- Academic Search Index
- Journal :
- Progress in Organic Coatings
- Publication Type :
- Academic Journal
- Accession number :
- 160437466
- Full Text :
- https://doi.org/10.1016/j.porgcoat.2022.107237