The invention discloses a high temperature-resistant
polyester non-
woven fabric used for lightweighting of an automobile. The high temperature-resistant
polyester non-
woven fabric comprises a
polyester fiber lamella layer and an
aluminum foil layer, wherein the density of the polyester
fiber lamella layer successively decreases along the thickness direction of the lamella layer, the polyester
fiber lamella layer successively comprises a compact layer, a semi-compact layer and a fluffy layer, and the
aluminum foil layer is arranged on the surface of the compact layer. The preparation method comprises the following steps: preparing polyester fiber lamella of the polyester fiber lamella layer; sprinkling
hot melt powder among the compact layer, the semi-compact layer and the fluffy layer and firmly bonding the three
layers by using roll compacting technology; sprinkling the
hot melt powder on the surface of the compact layer; and heating
aluminum foil of the aluminum foil layer and then covering the surface of the compact layer with the aluminum foil layer. Thus, the prepared high temperature-resistant polyester non-
woven fabric has light weight, good elasticity,
flame retardation performance and good high temperature-resistant, heat-insulating, sound-absorbing and sound-insulating effects, is environment-friendly and odorless, can be extensively used for interior decorative parts of the automobile and exerts heat-insulating, sound-insulating, vibration-damping and
noise-reducing effects; moreover, the polyester non-woven fabric is reduced in thickness and
gram weight and can meet new requirements of lightweighting of the automobile, so the
comfort index of the automobile can be improved.