Automobile carpet sound insulation pad and automobile

Abstract

The invention discloses an automobile carpet sound insulation pad and an automobile. The sound insulation pad comprises a carpet surface layer, a carpet sound absorption and insulation layer and a carpet flame-retardant layer which can be assembled in a layered mode. The carpet surface layer comprises a needle-punched PET fiber and chinlon PA66 fiber composite fabric layer, the carpet sound absorption and insulation layer comprises a dual-density cotton felt layer, and the carpet flame-retardant layer comprises a thermoplastic polyolefin elastomer TPO composite EVA layer. The needle-punched PET fiber and chinlon PA66 fiber composite fabric layer is prepared by mixing PET fibers with the fiber diameter of 0.04-0.06 mm and 12-18% of chinlon PA66 fibers, the thickness of the needle-punched PET fiber and chinlon PA66 fiber composite fabric layer is 6-8 mm, and the material gram weight of the needle-punched PET fiber and chinlon PA66 fiber composite fabric layer is 450-560 g / m < 2 >. The carpet sound insulation pad has the dual functions of fatigue resistance, corrosion resistance, mildew resistance, sound absorption and sound insulation, and is low in cost, simple in process, easy to assemble and stable in flame retardant property, and the flame retardant safety coefficient can be greatly improved.

Description

Technical field [0001] The present invention relates to the field of automotive carpets, especially a lightweight enhanced flame retardant hierarchical macrota. The invention also relates to a car disposed with the car carpet. Background technique [0002] With the rapid development of the automotive industry, the price of automobiles gradually sink, and the car has become more and more popular. [0003] The car is generally installed on the floor sheet metal, which is the main purpose to sound insulation noise reduction, cover sheet metal and harness, seat rail, etc., and have a shock absorption, improve ride comfort. [0004] The existing carpet is mainly divided into two types: [0005] One is the needle-shaped film and a layer of PE (polyethylene) film, and the back is attached to the sound insulation cotton. Such carpet is simple, weight is lighter, and the cost is also low, but the noise source noise reduction effect of the motor arranged on new energy vehicle sheet metal i...

AI Technical Summary

Problems solved by technology

When assembled to the car, due to the contact with the floor sheet metal, when the battery pack is exposed to high temperature for a long time, the small molecular particles in the PU foam will degrade at high temperature, release volatile harmful gases, and endanger the health of drivers and passengers. Additives, it is difficult to rectify later

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