Abstract: The present invention provides a carbon fiber reinforced polypropylene resin composition with improved molding property. In particular, provided is a carbon fiber reinforced polypropylene resin composition with significantly improved molding property, tensile strength, flexural strength and the like by adding a modified polypropylene grafted with maleic anhydride as a compatibilizer to a polypropylene resin to reinforce the carbon fiber.

Abstract: The present invention provides a carbon fiber reinforced polypropylene resin composition with improved molding property. In particular, provided is a carbon fiber reinforced polypropylene resin composition with significantly improved molding property, tensile strength, flexural strength and the like by adding a modified polypropylene grafted with maleic anhydride as a compatibilizer to a polypropylene resin to reinforce the carbon fiber.

Abstract: Disclosed herein are a polypropylene resin composition having excellent melt tension and a method for preparing the same. More particularly, a high melt tension polypropylene resin composition prepared by stepwise reaction of existing polypropylene resin with at least two organic peroxides having different half-life distributions, as well as a method for preparation thereof are described.

Abstract: Disclosed herein are a polypropylene resin composition having excellent melt tension and a method for preparing the same. More particularly, a high melt tension polypropylene resin composition prepared by stepwise reaction of existing polypropylene resin with at least two organic peroxides having different half-life distributions, as well as a method for preparation thereof are described.

Abstract: Disclosed herein are a rubber/nanoclay master batch composition and a method for fabrication of a high strength and high impact strength polypropylene/nanoclay/rubber composite composition using the foregoing composition. More particularly, a method for preparation of a rubber/nanoclay master bath using a modified polymer having a high content of maleic anhydride as a compatibilizer is provided. According to the disclosed method, a rubber based nanoclay master batch is prepared and, when added to propylene, may prevent decrease in flexural modulus caused by rubber addition while favorably improving impact strength. In addition, using a maleic anhydride-grafted modified polymer having a high content of maleic anhydride, a rubber/nanoclay master batch composition having excellent dispersibility in polymer may be obtained.

Abstract: Disclosed herein are a spalling-preventing composite material composed of fiber and powder, which have different diameters and melting points so as to be capable of realizing the effect of preventing spalling of high-strength concrete and the effect of improving the fluidity of concrete, and a high-strength refractory concrete comprising the spalling-preventing material. The composite material for preventing spalling of high-strength concrete is composed of powder and fiber at 1:1-3, wherein the powder is a polymer powder having a diameter of 0.10-0.5 mm and a melting point of 110-150° C., and the fiber is a conjugate fiber including a first fiber having a diameter of 0.05-0.10 mm, a length of 5-25 mm and a melting point of 150-190° C., and a second fiber having a diameter of 0.01-0.05 mm, a length of 5-25 mm and a melting point of 190-250° C., the first fiber being a polypropylene fiber, and the second fiber being a nylon fiber or a polyvinyl alcohol fiber.

Abstract: There is provided olefin-based cross-linked thermoplastic elastomers and a preparation method thereof. The TPE comprises a thermoplastic polyolefin resin; an ethylene-propylene-dien rubber; an ethylene-octene copolymer; and a phenolic cross-linking agent. The TPE shows good tensile strength, tension set and compression set.