METHOD FOR PREPARING RUBBER/NANOCLAY MASTERBATCHES, AND METHOD FOR PREPARING HIGH STRENGTH, HIGH IMPACT-RESISTANT POLYPROPYLENE/NANOCLAY/RUBBER COMPOSITES USING SAME

摘要

The present invention relates to a rubber/nanoclay masterbatch composition, and to a method for preparing high strength, high impact-resistant polypropylene/nanoclay/rubber composites using same, and more particularly, to a method for preparing rubber/nanoclay masterbatches using a modified polymer having a high content of maleic anhydride and a compatibilizer. The method for preparing rubber-based nanoclay masterbatches according to the present invention prevents the degradation of the flexural modulus caused by the addition of rubber to the polypropylene, and improves impact resistance. Further, the present invention uses a maleic anhydride graft modified polymer having a high content of maleic anhydride to provide a rubber/nanoclay masterbatch composition having a significantly superior dispersion in a polymer. In addition, the present invention uses a rubber/nanoclay masterbatch composition having a high content of maleic anhydride to provide polypropylene/nanoclay/rubber composites in which a reduction in the flexural modulus is minimized and impact resistance is increased.