Abstract: In order to develop fire retarded interior needle-punched nonwoven used for automobile, fire retarded polyester fibers and thermal plastic PP/PE fibers were selected to manufacture the fire retarded needle-punched nonwoven by the needle-punched process and calendar process. The stiffness, permeability, mechanical properties, flammability and limited oxygen index of the neddle-punched nonwoven were all tested respectively, and the factors that affect those properties were analysized. The results show that with the surface density of the needle-punched nonwoven increasing, the stiffness, mechanical properties and fire retardance all increase correspondingly. And the calendar finishing make the stiffness, mechanical property and flame retardance of the needle-punched nonwoven improving, while the permeability decreases.

Key words: nonwoven, needoe-punched depth, needle-punched density, flame-retardance, property