SOUND-ABSORBING MATERIAL FOR AUTOMOBILE USING FOAMING URETHANE FOAM TO WHICH CARBON NANO-TUBE IS APPLIED AND PREPARATION METHOD THEREOF

摘要

Disclosed is a sound-absorbing material for an automobile, using foaming urethane foam to which carbon nano-tubes are applied, and a preparation method thereof. More particularly, disclosed is a sound-absorbing material for an automobile, which has excellent sound absorption and insulation performance while maintaining excellent flame retardancy, by increasing the ratio of open cells while uniformly maintaining the cell structure of the foam by adding carbon nano-tubes as a substitute for a portion of a flame retardant filler, and a preparation method thereof.

主权项

1. A sound-absorbing material for an automobile, using foaming urethane foam to which carbon nano-tubes are applied, comprising:
100 parts by weight of a polypropylene-based polyol component, the polyol component comprising about 70 to 90% by weight of high-molecular and low-molecular polyols and about 10 to 30% by weight of at least one additive comprising a foaming agent, wherein wt % are based on the total weight of the polyol component; and an isocyanate component, comprising about 120 to 180 parts by weight of isocyanate, about 10 to 20 parts by weight of a flame retardant filler, and about 0.1 to 3 parts by weight of carbon nano-tubes, wherein parts by weight are based on 100 parts by weight of the polyol component.