| 摘要 |
<p>The present invention relates to a soundproof material using polyurethane foam from a waste car seat and a manufacturing method thereof, and more specifically to a soundproof material using polyurethane foam from a waste car seat and a manufacturing method thereof, wherein the soundproof material improves mechanical rigidity and soundproof performance, reduces costs of parts, is environment-friendly by recycling resources, and is applied to vehicle parts including a package tray, a luggage covering, a covering shelf, and an isolation pad. [Reference numerals] (AA) Start; (BB) Mixing finely pulverized sheet foam, LM PET fiber, and PET fiber or thermoplastic fibers and hem; (CC) Generating a soundproof material by carding and laminating a compound, the needle punching, and a heat roller (PU FOAM-fiber felt, I); (DD) Generating the soundproof material by adding the thermoplastic fibers (polypropylene, polyethylene terephthalate) or JUTE and the carding, laminating, and needle punching (fiber felt, II); (EE) Laminating a thermoplastic (polypropylene, polyehtylene) film (fiber felt in which a soundproof layer is added, III) by impregnating thermoplastic (polypropylene, polyehtylene) resin in the generated fiber felt (II) or using the heat roller; (FF) Generating a soundproof material (IV) in which the sheet foam with improved rigidity and soundproof efficiency is recycled by laminating the generated soundproof materials (I, III) with the heat roller as two or three layers; (GG) Manufacturing a vehicle soundproof component by pressing the same with a rolling mold after the generated recycle soundproof material is preheated by a preheating press, an oven, or a heater for 20-200 seconds; (HH) End</p> |
