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29. Dec 2015 | Raw materials

Bio-based polyurethanes for environment-friendly coating systems

Bio-based polyurethane (PU) coatings have been used extensively from last few decades and replaced petrochemical based coating due to their lower environmental impact, easy availability, low cost and biodegradability.

Researchers discussed future challenges and opportunities of bio-based materials. Source: Andre Nolte/

Bio-derived material, such as vegetable oils, cashew nut shell liquid (CNSL), terpene, Eucalyptus tar and other bio-renewable sources, constitute a rich source of precursors for the synthesis of polyols and isocynates which are being considered for the production of "greener” PU coatings.

Focus on progress and future opportunities

Various chemical modifications of bio-based precursors, synthesis of various PU coatings from these modified materials and their potential applications are discussed in this review. The review examines the technological and future challenges discussed in bringing these materials to a wide range of applications, together with potential solutions, as well as discusses the major industry players who are bringing these materials to the market. This paper will focus on the progress and future opportunities of bio-based materials for coatings.

The study is published in: Progress in Organic Coatings, Volume 91, February 2016, Pages 25-32.

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