| 摘要 |
A nanoclay masterbatch composition, and a high rigidity polypropylene/nanoclay composite using the composition are provided to induce a sufficient dispersion of nanoclay and to increase flexural modulus, flexural strength and tensile strength without the decrease of heat distortion temperature. A nanoclay masterbatch composition comprises 20~70 wt% of a polypropylene resin; 40~50 wt% of a nanoclay; and 10~40 wt% of a modified polymer, wherein the modified polymer has a weight average molecular weight of 30,000~100,000 and is a maleic anhydride graft polypropylene resin containing 4-8 weight part of maleic anhydride based on 100 parts by weight a polypropylene resin, and the masterbatch has a flexural modulus of 30,000~50,500 kg/cm^2 and a heat distortion temperature of 100~140 ‹C.
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