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Monday, 16 September 2019
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Raw materials & technologies, Technologies

Preparing UV-curable multi-arms cardanol-based acrylates

Wednesday, 23 December 2015

A series of multi-arms cardanol-based acrylates (CGHA, CDHA, CTHA) were synthesised using renewable cardanols and bio-based polyols (glycerol, diglycerol, tripilyglycerol) as precursors.

Multi-arms cardanol-based acrylates could be used to produce UV-curable films and coatings. Source: Stephanie Hofschlaeger/pixelio.de

Multi-arms cardanol-based acrylates could be used to produce UV-curable films and coatings. Source: Stephanie Hofschlaeger/pixelio.de

The structures and molecular weights of the cardanol-based acrylates were characterised by FT-IR, 1H NMR and GPC, respectively.

Bio-based coatings exhibit good adhesion

The synthesised multi-arms cardanol-based acrylates were used to produce UV-curable films and coatings. High mechanical strength as well as good biodegradability of the UV-cured films was obtained. The important coating film properties, such as hardness, gloss and adhesion were also investigated. The results showed that the coatings with high bio-based content exhibit good adhesion, gloss and acid-resistance, which is comparable to the soybean oil (AESO)-based and polyester acrylate.

The study is published in: Progress in Organic Coatings, Volume 90, January 2016, Pages 126–131.

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