PRODUCTION OF FIBRE COMPOSITE COMPONENT PART BASED ON ALUMINIUM AND POLYURETHANE

摘要

The invention has for its object to devise a method whereby fibre composite component parts are produced from aluminium and polyurethane in industrial practice and in a commercially viable manner. It is a fundamental concept of the method according to the present invention to use a polyurethane composition which is special in that it conforms to the manufacturing process, in that it is capable of undergoing a first crosslinking reaction to convert it into a thermoplastic polymer and later a second crosslinking reaction to fully crosslink the thermoplastic polymer into a thermoset material. According to the present invention, the full crosslinking into the thermoset polymer is only carried out after a shape-conferring forming step, and so the final high strength of the component part is only attained after the component part has already assumed its ultimate in-service shape. The invention is notable for closely harmonizing the choice of chemicals with the mechanical processing steps to thereby exploit synergies in the processing of plastics and of aluminium.