Bio-based semi-aromatic polyesters for coating applications

doi:10.1016/j.porgcoat.2013.09.012

2014-01-01

PRE

Erik Gubbels

Jan Pieter Drijfhout

Cindy Posthuma-van Tent

Lidia Jasińska-Walc

Bart A. J. Noordover *

Cor E. Koning

DOI：10.1016/j.porgcoat.2013.09.012

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En 中文

Linear and branched bio-based semi-aromatic (co)polyesters were evaluated as resins for solvent-based and powder coatings. Dimethyl-2,5-furandicarboxylate (DMF), 2,3-butanediol and various multifunctional comonomers were used to synthesize amorphous hydroxyl-end-capped (co)polyesters. The resins were cross-linked using the epsilon-caprolactam blocked trimer of isophorone diisocyanate. Both the solvent-based and powder coatings proved to be hard but brittle, which was a result of the very stiff molecular structure of the formed network. This was corroborated by the T-g values obtained for the coatings, which exceeded 100 degrees C for both the solvent-based and powder coatings. The poly(ester urethane) coatings prepared from the branched copolyesters show a reasonable solvent resistance. However, swelling occurred during the solvent treatment, indicating an insufficient network formation. The solvent-based and powder coatings exhibit similar mechanical and physical performance, showing that in this study there was no significant influence of the preparation method. In view of the obtained results it can be concluded that DMF-based branched polyesters are interesting candidates for solvent-based and powder coating applications. (C) 2013 Elsevier B.V. All rights reserved.

Keyword:

Dimethyl-2,5-furandicarboxylate

Bio-based

Solvent-based coatings

Powder coatings

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期刊

Progress in Organic Coatings

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7.3

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9.2K

被引数:

3.2W

机构

Gdansk University of Technology

学者数:

3.5K

论文数: 3.1K

被引数: 7.3K

Eindhoven University of Technology

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1.6W

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