The effect of reactives diluents to the physical properties of acrylated palm oil based polyurethane coatings

• Published in: MATEC Web of Conferences
• Main Author: Onn M.; Mohd A.F.; Yhaya M.F.
• Format: Conference paper
• Language: English
• Published: EDP Sciences 2016
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84969940554&doi=10.1051%2fmatecconf%2f20164705014&partnerID=40&md5=99940d41649421febe92d67aecc589ae

The development of polyurethane with hydroxyl access in a molecule leads to a new alternative of low toxicity green product. Palm oil is one of the major commodities in Malaysia. The potential of palm oil to be used as coatings raw material such as alkyd is limited due to low unsaturated side on fatty acid chains. To overcome this limitation, palm oil was modified through transesterification process to produce polyol. Acrylated isocyanate (urethane oligomer) was then grafted onto polyol to produce polyurethane with vinylic ends. The polyurethane was formulated with different cross-linkers (reactive diluents) and cured under UV radiation. The effect of three different diluents; monoacrylate, diacrylate and triacrylate on the properties of cured polymer were studied in this research. Fourier Transform Infrared (FTIR), Hydroxyl Value Titration, Gel Content, and Volatile Organic Compound (VOC) were used for characterization. Physical testing performed were Pencil Hardness and Pull-Off Adhesion test. Novel palm oil-based polyurethane coatings have been found to have good properties with mono acrylate functionality. © Owned by the authors, published by EDP Sciences, 2016.