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2005
Conference Paper
Titel
Novel coatings and adhesives from derivatives of palm-oil components
Abstract
Recently MPOB has come out with a new type of natural polyol made from palm oil product, referred to as PolyMO. The PolyMO is prepared from a three-step reaction and currently its synthesis is carried out at the laboratory scale. In collaboration with Fraunhofer Wilhelm-Klauditz-Institut in Germany, that is performing the polymerisation of PolyMo and its testing for possible applications in two-pack polyurethane coating systems as well as in adhesive formulations. Prior to the coating formulations, the PolyMO was first converted into a polyester polyol resin with an appropriate molecular weight and OH-functionality. The polyester polyol can be reacted with an isocyante to give the desired coating film. Two types of coating were obtained where one was found suitable for indoor, while the other suitable for outdoor applications, especially in the temperate countries. The performance of the 2K PU coatings formulated with PolyMO ester was tested as according to DIN 68861 (furniture) and DIN EN 927 (outdoor coatings). The formulated coatings fulfilled all the requirements so far. In the adhesives formulations, PolyMO were compounded in appropriate rations with other palm-based polyols into two-pack polyurethane adhesives. The adhesives passed the test according to DIN EN 205. One potential area of application is in the sector involving medium density fiber (MDF) boards where the blended palm-based polyols could be formulated as adhesive components. Another potential application is the lamination of PVC foils on wood-based materials with polyurethane dispersions.