OLEFIN-BASED THERMOPLASTIC ELASTOMER HAVING EXCELLENT ELONGATION AND TENSILE STRENGTH IN HIGH TEMPERATURES COMPRISING MODIFIED POLYPROPYLENE

摘要

PURPOSE: An olefin-based thermoplastic elastomer composition is provided to have excellent tensile strength and elongation at high temperatures, and to have excellent impact resistance at low temperatures.;CONSTITUTION: An olefin-based thermoplastic elastomer composition comprises a polypropylene-based resin, a modified polypropylene, an olefin-based copolymer elastomer, a styrene-based copolymer elastomer, and organized nanoclay. The composition has a high-temperature tensile strength at 80 °C is 60 kgf/cm^2 or more, and a high-temperature tensile elongation is 700% or more. The polypropylene-based resin is a propylene polymer, or a copolymer of polypropylene and aliphatic A-olefin or aromatic olefin. The flow index polypropylene-based resin measured at 230 °C and 2.16 Kg is 1-90 g/10min.;COPYRIGHT KIPO 2013