Factors influencing properties of flame retardant needle-punched nonwoven for automobile interiors

In order to develop flame retardant needle-punched nonwoven for automobile interiors,the flame retardant polyester fibers and thermal plastic PP/PE composite fibers were selected as raw materials to manufacture the flame retardant needle-punched nonwoven by needle-punching and calendering.The stiffness,permeability,mechanical properties,flammability and limited oxygen index of the needle-punched nonwoven were tested,and the factors affecting these properties were analyzed.The results show that with the surface density of the needle-punched nonwoven increasing,the stiffness,mechanical calender,and flame retardance all increase correspondingly,but the permeability decreases.And the calendar finish makes the stiffness,mechanical property and flame retardance improve,while the permeability decreases.