Recycling scrap pieces of composite materials containing polyolefins and reinforcing fibers in a nautical industry, comprises grinding scrap pieces without raising a temperature, and filtering the grinded particles

摘要

The method comprises grinding scrap pieces without raising a temperature, and filtering the grinded particles to retain the particles having a size of 0.5-10 mm. The grinding is carried out with a unit including a knife and an anvil. The filtering is gravitationally and mechanically realized with a static grid. The method further comprises drying the grinded particles. The particles are mixed with a virgin resin containing thermoplastic polymers, and the mixture is used in an injection molding machine for forming composite material parts. The method comprises grinding scrap pieces without raising a temperature, and filtering the grinded particles to retain the particles having a size of 0.5-10 mm. The grinding is carried out with a unit including a knife and an anvil. The filtering is gravitationally and mechanically realized with a static grid. The method further comprises drying the grinded particles. The particles are mixed with a virgin resin containing thermoplastic polymers, and the mixture is used in an injection molding machine for forming composite material parts. The 30-50% of the particles output from of the method is mixed in a matrix of virgin resin consisting of polyolefins. The method has five recycling cycles.