COMPOSITE MATERIAL COMPRISING ETHYLENE/PROPYLENE COPOLYMER AND METHOD FOR PREPARING THE SAME

摘要

A composite material, including between 30 and 94 percent by weight of a polymer mixture of polyethylene or polypropylene, polyolefin elastomer, and sorbitol; between 5 and 60 percent by weight of a reinforcing agent; between 0 and 40 percent by weight of a strengthening agent; between 0.1 and 1 percent by weight of a disproportionation agent; between 0.1 and 1 percent by weight of a coupling agent; between 0.1 and 1 percent by weight of an antioxidant; between 0.1 and 1 percent by weight of an anti-aging agent; between 0.1 and 1 percent by weight of an ultraviolet absorber; between 0.1 and 1 percent by weight of a lubricant; and between 0.1 and 1 percent by weight of triethyl aluminum. A method for preparing the composite material includes separately mixing components, combining them in a twin screw extruder, and extruding and granulating the combined mixture.

主权项

1. A composite material, comprising, based on a total weight of the entire composite material:
between 30 and 94 percent by weight of a polymer mixture; the polymer mixture comprising between 69 and 95 percent by weight of polyethylene or polypropylene, between 4 and 30 percent by weight of polyolefin elastomer (POE), and between 0.3 and 1 percent by weight of sorbitol as a rigidity enhancer; between 5 and 60 percent by weight of a reinforcing agent; between 0 and 40 percent by weight of a strengthening agent; between 0.1 and 1 percent by weight of a disproportionation agent, the disproportionation agent being pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate); between 0.1 and 1 percent by weight of a coupling agent; between 0.1 and 1 percent by weight of an antioxidant; between 0.1 and 1 percent by weight of an anti-aging agent; between 0.1 and 1 percent by weight of an ultraviolet absorber; between 0.1 and 1 percent by weight of a lubricant; and between 0.1 and 1 percent by weight of triethyl aluminum.