Provided are an automotive engine room sound absorbing material with an enhanced heat dissipation function and a manufacturing method thereof. In the present invention, since an Oxi-PAN nonwoven fabric produced by applying or impregnating a heat-resistant liquid phenol resin onto a carbonized fiber (Oxi-PAN) carbonized with a polyacrylonitrile (PAN) fiber is applied, carbonization and shrinkage do not occur even at high temperatures, while sound absorption functions are improved in a high frequency region.
본 발명은 폴리아크릴로나이트릴(PAN: Polyacrylonitrile) 섬유를 탄화한 탄화섬유(Oxi-PAN)에 내열 액상 페놀 수지를 도포하거나 함침하여 제작한 Oxi-PAN 부직포를 적용하므로, 고온에서도 탄화 현상과 수축 현상이 없을 뿐만 아니라 고주파 영역에서 흡음 성능을 개선할 수 있게 한 방열 기능을 강화한 자동차용 엔진룸 흡음재 및 그 제조방법을 제공하는 데 그 목적이 있다.
SOUND ABSORBING MATERIALS AND METHOD FOR AUTOMOTIVE ENGINE ROOM WITH ENHANCED THERMAL RESISTANCE
방열 기능을 강화한 자동차용 엔진룸 흡음재 및 그 제조방법
2020-07-30
Patent
Electronic Resource
Korean
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
FOAMING METAL MOLD OF SOUND-ABSORBING MATERIALS FOR ENGINE ROOM
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