Abstract:
Provided are a thermoplastic elastic polymer which is excellent in durability and elasticity and is reduced in the generation of crack during molding process, and an automobile interior material comprising the thermoplastic elastic polymer. The thermoplastic elastic polymer comprises 100 parts by weight of an ethylene propylene diene monomer; 60-150 parts by weight of polypropylene; 0.4-16 parts by weight of a peroxide crosslinking initiator; and 1.2-8 parts by weight of ethylene glycidyl methacrylate. The polypropylene has a number average molecular weight of 40,000-80,000, a melt index of 1.8-10 g/10 min and a density of 0.8-0.9 g/cm^3; and the ethylene glycidyl methacrylate comprises 60-80 wt% of ethylene and 3-6 wt% of ethylene norbornene. Preferably the ethylene glycidyl methacrylate further comprises 6-10 wt% of glycidyl methacrylate.
Abstract:
A polymer nanocomposite is provided to improve mechanical properties such as tensile strength and flexural strength and to be produced from recycled plastics for automobiles. A polymer nanocomposite includes 100 parts by weight of a plastic mixture and 75-80 parts by weight of master batch. The plastic mixture comprises 45-50wt% of polypropylene, 40-45wt% of acrylonitrile-butadiene-styrene copolymers, 3-5wt% of polymethylmethacrylate, 3-5wt% of polycarbonate, 2-4wt% of nylon, and 1-2wt% of polybutyleneterephthalate. The master batch comprises 96-99wt% of styrene-co-acrylonitrile copolymers and 1-4wt% of nanoclay.