MATERIAL SUITABLE FOR THE MANUFACTURE OF VALVE SHUTTERS FOR THE CYLINDERS OF THE RECIPROCATING COMPRESSORS, AND VALVES THUS OBTAINED

摘要

Material suitable for the manufacture of valve shutters for the cylinders of the reciprocating compressors comprising a thermoplastic matrix consisting of polyether ether ketone (PEEK) or polyether imide (PEI) or mixtures thereof filled with glass and/or carbon fibers, characterized by comprising, in percentages by weight at least one of the following inorganic nano-particles, or a mixture thereof: 4-30% of wollastonite, 4-30% of metal oxide, 4-30% of carbon nano-fibers, 4-30% of sepiolite, 4-30% of mixtures of silica and alumina, 4-30% of fluoro-mica for a total quantity of 4-30% of nano-particles.