Sound-absorbing material and method for preparing the same

摘要

The present invention relates to a sound-absorbing material and a method for preparing same. More particularly, it relates to a sound-absorbing material prepared by impregnating a binder into a nonwoven fabric formed of a heat-resistant fiber, having superior sound-absorbing property, flame retardancy, heat resistance and heat-insulating property, thus being applicable to parts maintained at high temperatures of 200° C. or above, to say nothing of room temperature, and being shapeable owing to the binder, and a method for preparing same.

主权项

1. A sound-absorbing material comprising:
a nonwoven fabric comprising an amount of 30 wt % to 100 wt % of a heat-resistant fiber; and a binder impregnated in the same layer as the nonwoven fabric and maintaining a three-dimensional structure inside the nonwoven fabric, wherein the binder is distributed and attached to the surface of the fiber yarn of the nonwoven fabric, thereby maintaining the structure of or facilitating the formation of micro-cavities of the nonwoven fabric.