KR20100000243A - Vibration and sound proof material for vehicles - Google Patents

Vibration and sound proof material for vehicles Download PDF

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Publication number
KR20100000243A
KR20100000243A KR1020080059668A KR20080059668A KR20100000243A KR 20100000243 A KR20100000243 A KR 20100000243A KR 1020080059668 A KR1020080059668 A KR 1020080059668A KR 20080059668 A KR20080059668 A KR 20080059668A KR 20100000243 A KR20100000243 A KR 20100000243A
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South Korea
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sheet
vibration
layer
vehicle
polypropylene
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KR1020080059668A
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Korean (ko)
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KR100989171B1 (en
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김현영
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김현영
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/08—Animal fibres, e.g. hair, wool, silk
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE: A vibration-proofing and sound-proofing material for a vehicle is provided to reinforce adhesion force through ultrasonic wave or high frequency heat sealing, and to simplify manufacturing processes with three sheets. CONSTITUTION: A vibration-proofing and sound-proofing material for a vehicle includes a middle layer(10), an upper layer(20), and a lower layer(30). The middle layer is formed with a sheet made with polypropylene. The upper layer and the lower layers are formed on the bottom and the top of the middle layer. The sheet is made with synthetic fiber in which the polypropylene is added. The sheet of the middle layer is made of fiber manufactured by mixing the polypropylene and viscoelastic resin. The viscoelastic resin is one or more compound selected between polyurethanes and polyurea.

Description

차량용 방진방음재{Vibration and sound proof material for vehicles} Vibration and Sound Proof Material for Vehicles

본 발명은 차량용 방진방음재에 관한 것으로, 보다 상세하게는 차량의 엔진소음이나 진동 등이 전달되는 것을 방지하기 위하여 시공되는 차량용 방진방음재에 관한 것이다.The present invention relates to a vehicle anti-vibration soundproofing material, and more particularly to a vehicle anti-vibration soundproofing material which is constructed to prevent the transmission of engine noise or vibration of the vehicle.

일반적으로 차량에는 엔진소음이나 진동이 차량의 실내로 전달되는 것을 방지하고자 차량의 바닥면이나 실내 천정, 도어 트림부분, 본넷트 천정 등에 방진방음재를 시공하는데, 이러한 방진방음재는 주로 부직펠트나 유리섬유와 같은 섬유재나 발포 우레탄폼과 같은 발포폼재를 사용하여 제조된다.In general, in order to prevent engine noise or vibration from being transmitted to the interior of a vehicle, dustproof soundproof materials are installed on the floor, indoor ceiling, door trim part, and bonnet ceiling of the vehicle, which are mainly made of nonwoven felt or glass fiber. It is manufactured using the same fiber material or foamed foam material such as urethane foam.

특히, 근래에는 상기 방진방음재로 우수한 방진, 방음효과를 나타내는 폴리에틸렌테레프탈레이트(polyethylene terephtalate, 이하 PET라 함) 섬유 등을 주재로 하여 제조된 시트를 사용하고 있으나, 하나의 재료로 제작된 방진방음재는 차음효과가 적기 때문에 이를 보강하기 위하여 다른 재료로 제작된 시트들과 적층하여 사용하고 있다.Particularly, in recent years, a sheet manufactured mainly using polyethylene terephthalate (hereinafter referred to as PET) fibers having excellent dustproofing and soundproofing effect as the dustproof soundproofing material is used. Since the sound insulation effect is small, it is used by stacking with sheets made of different materials to reinforce it.

그 일례로 본 발명자에 의해 선출원된 등록실용 제20-321944호에는 5개의 시트가 적층된 방진방음재가 개시되어 있다. As an example, in Patent Registration No. 20-321944, filed in advance by the present inventor, a dustproof soundproof material in which five sheets are stacked is disclosed.

도 1은 종래 방진방음재를 나타낸 부분절개 사시도로, 이에 도시된 바와 같이 본 발명자가 선출원한 방진방음재는 PET시트층(100)과, 상기 PET시트층(100)의 상부에 형성된 상부 PP시트층(200)과, 상기 PET시트층(100)의 하부에 형성된 하부 PP시트층(200')과, 상기 상부 PP시트층(200)의 상면에 형성된 부직포층(300), 및 상기 하부 PP시트층(200') 하면에 형성된 마감층(400)으로 구성된다.1 is a partial cutaway perspective view showing a conventional dustproof soundproofing material, as shown in the present invention, the dustproof soundproofing material pre-applied by the PET sheet layer 100, the upper PP sheet layer formed on the PET sheet layer (100) 200), the lower PP sheet layer 200 'formed under the PET sheet layer 100, the nonwoven fabric layer 300 formed on the upper surface of the upper PP sheet layer 200, and the lower PP sheet layer ( 200 ') is composed of a finishing layer 400 formed on the lower surface.

상기와 같이 여러 재료가 적층되어 제작된 방진방음재는 재료간의 상호작용으로 인해 차량의 내부 바닥면이나 공동주택의 벽면에 적용시 방진 및 방음효과가 극대화되는 효과가 있었다.The dustproof soundproofing material produced by stacking the various materials as described above has the effect of maximizing the dustproofing and soundproofing effect when applied to the interior floor of the vehicle or the wall of the apartment house due to the interaction between the materials.

그러나 상기 방진방음재는 적어도 5개의 시트를 별도로 제작한 뒤, 상기 시트를 적층하는 공정을 통해 제작해야 하기 때문에 그 생산공정이 복잡하였고, 이에 따라 제품의 생산비용이 증가하게 되는 문제점이 있었다.However, since the anti-vibration soundproofing material has to be manufactured through a process of laminating the sheets after at least five sheets are manufactured separately, the production process is complicated, and thus there is a problem that the production cost of the product increases.

또한, 상기와 같은 방진방음재를 차량에 부착시킬 때에 초음파나 고주파열융착을 통해 시공을 하게 되는데, 폴리에틸렌으로 이루어진 차체부품의 경우 이종 물질간의 열융착으로 인해 접착력이 떨어지기 때문에 차체부품에 방진방음재가 장시간 부착되어 있지 못하고, 쉽게 박리되는 문제점이 있었다. In addition, when the anti-vibration soundproofing material is attached to the vehicle, the construction is performed by ultrasonic wave or high frequency heat fusion. In the case of the body parts made of polyethylene, since the adhesive force is lowered due to heat fusion between dissimilar materials, the soundproof soundproof material is applied to the car body parts. There was a problem in that it did not adhere for a long time and peeled easily.

상기와 같은 문제점을 해결하기 위하여 본 발명은 3개의 시트로 구성되어 그 생산공정이 보다 단순화할 수 있고, 초음파나 고주파열융착을 통하여 차량에 융착시 쉽게 박리되지 않는 차량용 방진방음재를 제공하는 것을 목적으로 한다.In order to solve the above problems, the present invention is composed of three sheets, the production process can be more simplified, the object of providing a vibration-proof soundproofing material for a vehicle that is not easily peeled off when welding to the vehicle through ultrasonic or high frequency heat welding. It is done.

상기와 같은 목적을 달성하기 위하여 본 발명은,The present invention to achieve the above object,

폴리프로필렌으로 이루어진 시트로 형성된 중간층과;An intermediate layer formed of a sheet made of polypropylene;

상기 중간층의 상부와 하부에 각각 형성되며, 폴리에틸렌이 첨가된 혼합섬유로 이루어진 시트로 형성된 상부층 및 하부층;을 포함하는 것을 특징으로 하는 차량용 방진방음재를 제공함으로써 달성된다.The upper and lower layers respectively formed on the upper and lower portions of the intermediate layer, the upper layer and the lower layer formed of a sheet made of mixed fibers added with polyethylene;

또한, 본 발명은 상기 중간층의 시트는 폴리프로필렌과 점탄성수지를 혼합하여 제조된 섬유로 제조되는 것을 특징으로 하는 차량용 방진방음재를 제공함으로써 달성된다.In addition, the present invention is achieved by providing an anti-vibration soundproofing material for a vehicle, characterized in that the sheet of the intermediate layer is made of fibers prepared by mixing polypropylene and viscoelastic resin.

또한, 본 발명은 상기 점탄성수지는 폴리우레탄, 폴리우레아 중 선택되는 하나 혹은 둘 이상이 혼합된 것을 특징으로 하는 차량용 방진방음재를 제공함으로써 달성된다. In addition, the present invention is achieved by providing a vehicle anti-vibration soundproof material, characterized in that one or two or more selected from the group consisting of polyurethane, polyurea is mixed.

또한, 본 발명은 상기 중간층의 시트에는 점탄성수지가 20~35%가 함유되어 있는 것을 특징으로 하는 차량용 방진방음재를 제공함으로써 달성된다.In addition, the present invention is achieved by providing a vehicle anti-vibration soundproofing material, characterized in that the sheet of the intermediate layer contains 20 to 35% of the viscoelastic resin.

또한, 본 발명은 상기 혼합섬유는 폴리에틸렌 외에 폴리프로필렌, 폴리에틸 렌테레프탈레이트, 나일론, 비스코레이온, 폴리카보네이트, 면, 양모, 솜 중 선택되는 하나 혹은 둘 이상을 혼합한 것을 특징으로 하는 차량용 방진방음재를 제공함으로써 달성된다.In addition, the present invention, the mixed fiber is a vehicle anti-vibration soundproof material characterized in that one or more selected from polypropylene, polyethylene terephthalate, nylon, biscorayon, polycarbonate, cotton, wool, cotton in addition to polyethylene Is achieved by providing

또한, 본 발명은 상기 상부층 및 하부층의 시트에는 폴리에틸렌이 30~50%가 함유되어 있는 것을 특징으로 하는 차량용 방진방음재를 제공함으로써 달성된다.In addition, the present invention is achieved by providing a vehicle anti-vibration soundproof material, characterized in that the sheet of the upper layer and the lower layer contains 30 to 50% polyethylene.

상술한 바와 같이 본 발명의 차량용 방진방음재는 상부층, 중간층 및, 하부층으로 3개의 층으로 구성되어 있어 그 가공공정 및 생산공정이 보다 단순화될 수 있고, 이를 통해 생산비 절감을 할 수 있을 뿐만 아니라, 중량이나 두께가 감소되더라도 그 흡음효과가 유지될 수 있는 효과를 갖는다. As described above, the vehicle anti-vibration soundproofing material of the present invention is composed of three layers of an upper layer, an intermediate layer, and a lower layer, thereby simplifying the processing process and the production process, thereby reducing the production cost and weight. However, even if the thickness is reduced, the sound absorption effect can be maintained.

또한, 본 발명의 방진방음재를 폴리에틸렌을 함유하고 있는 차량부품에 시공시 차량부품의 물질과 상부층 및 하부층 내에 함유되어 있는 폴리에틸렌 성분이 동종물질로 이루어져 초음파나 고주파 열융착을 통한 시공시 그 접착력이 강화되어 방진방음재가 쉽게 박리되지 않고 장시간 유지될 수 있는 효과를 갖는다.In addition, when the anti-vibration soundproofing material of the present invention is applied to a vehicle part containing polyethylene, the material of the vehicle part and the polyethylene component contained in the upper layer and the lower layer are made of the same material, and thus the adhesion thereof is enhanced when the ultrasonic vibration or high frequency heat fusion is applied. As a result, the dustproof soundproof material is not easily peeled off and has an effect that can be maintained for a long time.

이하 본 발명을 첨부된 도면을 참조하여 보다 상세하게 설명하기로 하나, 이는 본 발명의 이해를 돕기 위하여 제시된 것일 뿐, 본 발명이 이에 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings, which are presented to aid the understanding of the present invention, but the present invention is not limited thereto.

도 2는 본 발명의 일 실시예에 따른 방진방음재의 단면도로서, 이에 도시된 바와 같이 본 발명의 차량용 방진방음재는 중간층(10)과, 상기 중간층(10)의 상부와 하부에 각각 형성되는 상부층(20) 및 하부층(30)을 포함한다.Figure 2 is a cross-sectional view of the soundproof soundproof material according to an embodiment of the present invention, as shown in the vehicle soundproof soundproof material of the present invention is the middle layer 10, the upper layer formed on the upper and lower portions of the intermediate layer (10) 20) and lower layer 30.

먼저, 상기 중간층(10)은 폴리프로필렌으로 이루어진 섬유를 일반적인 직조공정이나 부직공정을 통해 시트화하여 제조하는데, 상기 중간층(10)을 형성하기 위한 폴리프로필렌 섬유로 직경 3마이크론 이하의 장섬유를 사용하여 통상의 부직공정을 통해 제조된 부직펠트 형상의 시트를 이용하여 형성되도록 할 수 있으며, 이는 그 재질 자체가 가지는 방진 및 방음효과를 통해 소음을 흡수하여 소멸시키는 역할을 수행하게 된다. First, the intermediate layer 10 is manufactured by sheeting a fiber made of polypropylene through a general weaving process or a nonwoven process, and using a long fiber having a diameter of 3 microns or less as a polypropylene fiber for forming the intermediate layer 10. It can be formed using a non-woven felt-shaped sheet manufactured through a conventional non-woven process, which serves to absorb and extinguish noise through the dust and sound insulation effect of the material itself.

이때 상기 중간층(10)의 시트는 폴리프로필렌과 점탄성수지를 혼합하여 제조된 섬유로 제조되는 것이 보다 바람직한데, 상기 폴리프로필렌과 점탄성수지가 혼합되어 제조된 섬유는 부직공정 또는 직조공정을 통해 시트화하여 사용하게 된다.At this time, the sheet of the intermediate layer 10 is more preferably made of a fiber produced by mixing polypropylene and viscoelastic resin, the fiber produced by mixing the polypropylene and viscoelastic resin is sheeted through a nonwoven process or a weaving process Will be used.

이러한 상기 점탄성수지는 중간층(10)시트의 섬유조직에 탄성력을 부여하여 시트의 조직감을 보다 탄력적으로 형성될 수 있도록 하며, 상기와 같이 시트에 탄력이 부여됨에 따라 시트내의 기공도가 향상되어 방진방음재가 소음을 더욱 잘 흡수할 수 있도록 함으로써 그 흡음효과를 보다 강화시키도록 하는 것으로, 이러한 점탄성수지는 폴리우레탄이나 폴리우레아 등에서 선택되는 하나 혹은 둘 이상을 혼합한 것을 사용하는 것이 바람직하다.The viscoelastic resin imparts elastic force to the fibrous structure of the intermediate layer 10 sheet so that the texture of the sheet can be more elasticly formed, and as the elasticity is applied to the sheet as described above, the porosity in the sheet is improved, so that the dustproof soundproof material In order to enhance the sound absorption effect by better absorbing the noise, it is preferable to use a mixture of one or two selected from polyurethane, polyurea, and the like.

이때 상기 중간층(10)의 시트는 점탄성수지가 20~35% 함유되도록 하는 것이 바람직한데, 만약 점탄성수지가 20%보다 적은 양이 함유되면 방진방음재의 흡음기능이 충분히 향상되기 어렵고, 35%보다 많은 양이 함유되면 상대적으로 폴리프로필 렌의 함유량이 적어져 성형성이 감소할 수 있게 된다.At this time, it is preferable that the sheet of the intermediate layer 10 contains 20 to 35% of the viscoelastic resin. If the amount of the viscoelastic resin is less than 20%, the sound absorbing function of the dustproof soundproof material is difficult to be sufficiently improved, and more than 35%. When the amount is contained, the content of polypropylene is relatively low, and the moldability can be reduced.

또한, 상기와 같은 중간층(10)의 시트는 120g/m2~900g/m2의 중량을 갖도록 제작하는 것이 좋으며, 시트의 두께는 상기 중량에 따라 그 두께가 변경되어 중량이 작으면 얇게, 중량이 크면 두껍게 형성된다.In addition, the sheet of the intermediate layer 10 as described above is preferably produced to have a weight of 120g / m 2 ~ 900g / m 2 , the thickness of the sheet is changed according to the weight is thin, if the weight is small, the weight If it is large, it becomes thick.

이러한 상기 중간층(10)의 상부와 하부에 각각 형성되는 상부층(20) 및 하부층(30)은 방진 및 방음효과를 통해 중간층(10)의 흡음효과를 보강할 뿐만 아니라, 방진방음재를 차량 등에 초음파나 고주파를 통하여 열융착시킨 후 쉽게 박리되지 않도록 하는 중요한 역할을 수행한다. The upper layer 20 and the lower layer 30 respectively formed on the upper and lower portions of the intermediate layer 10 not only reinforce the sound-absorbing effect of the intermediate layer 10 through the dustproof and soundproofing effect, It plays an important role not to be easily peeled off after thermal fusion through high frequency.

이와 같은 상기 상부층(20) 및 하부층(30)의 시트는 폴리에틸렌이 첨가된 혼합섬유를 직조공정이나 부직공정을 통해 시트화하여 제조할 수 있는 것으로, 여기서 상기 혼합섬유는 폴리에틸렌 외에 폴리프로필렌, 폴리에틸렌테레프탈레이트, 나일론, 비스코레이온, 폴리카보네이트, 면, 양모, 기타 잡솜 등 중에서 선택되는 하나 혹은 둘 이상을 혼합한 것이다.The sheet of the upper layer 20 and the lower layer 30 can be prepared by sheeting the mixed fibers added with polyethylene through a weaving process or a nonwoven process, wherein the mixed fibers are polypropylene in addition to polyethylene, polyethylene tere It is a mixture of one or two or more selected from phthalate, nylon, biscorayon, polycarbonate, cotton, wool, and other cotton wool.

상기와 같은 혼합섬유로 제조된 상부층(20) 및 하부층(30)은 폴리에틸렌과 함께 함유된 폴리프로필렌, 폴리에틸렌테레프탈레이트, 나일론, 비스코레이온 등과 같은 물질들을 통해 상부층(20) 및 하부층(30)이 방진 및 방음효과를 갖도록 하여 그 흡음효과를 보다 강화시켜 주게 되는 것이다.The upper layer 20 and the lower layer 30 made of the mixed fibers as described above, the upper layer 20 and the lower layer 30 is dust-proof through a material such as polypropylene, polyethylene terephthalate, nylon, biscorrayon and the like contained with polyethylene. And to have a soundproofing effect to enhance the sound-absorbing effect.

또한, 상기 상부층(20) 및 하부층(30)에 함유되어 있는 폴리에틸렌에 의해 추후 차량에 초음파나 고주파 열융착을 통한 시공시 그 부착강도를 강화시켜주는 데, 이는 폴리에틸렌을 기본으로 함유하고 있는 플라스틱 재질의 차량부위에 초음파나 고주파를 통한 열융착시 상부층(20) 및 하부층(30)의 폴리에틸렌과 차량부위의 폴리에틸렌이 동종의 물질로 이루어져 있어 열융착시 상호간의 접착력을 강화시켜주어 방진방음재의 차량 시공후 쉽게 박리되지 않도록 해주는 것이다.In addition, by the polyethylene contained in the upper layer 20 and the lower layer 30 to strengthen the adhesion strength during the construction of the vehicle later by ultrasonic or high frequency thermal fusion, which is a plastic material containing polyethylene as a base Polyethylene of the upper layer (20) and lower layer (30) and polyethylene of the vehicle portion when heat-sealed by ultrasonic or high frequency to the vehicle part of the vehicle is made of the same material to strengthen the adhesion between each other when heat-sealed to install the vehicle of dustproof soundproof material It will not be easily peeled off after.

여기서 상기 상부층(20) 및 하부층(30)의 시트는 폴리에틸렌이 30~50%가 함유되도록 하는 것이 바람직한데, 이는 만약 상기 폴리에틸렌이 30%보다 적은 양을 함유시키면 초음파나 고주파 열융착을 통한 시공시 그 접착력을 충분히 강화시키지 못하여 그 효과가 미미할 수 있으며, 50%보다 많은 양을 함유시키면 방진 및 방음효과를 내는 다른 첨가물질의 양이 감소되어 그 방진방음재의 기능이 충분히 향상되지 못할 수 있기 때문이다.Here, the upper layer 20 and the lower layer 30 of the sheet is preferably to contain 30 to 50% polyethylene, which is if the polyethylene contains less than 30% when construction through ultrasonic or high frequency heat welding The effect may be insignificant due to insufficient strength of adhesion, and if it contains more than 50%, the amount of other additives for dustproofing and soundproofing may be reduced, and thus the function of the soundproofing soundproofing may not be sufficiently improved.

또한, 상기와 같은 상부층(20) 및 하부층(30)의 시트는 10g/m2~30g/m2의 중량을 갖도록 제작하는 것이 좋으며, 시트의 두께는 상기 중량에 따라 그 두께가 변경되어 중량이 작으면 얇게, 중량이 크면 두껍게 형성된다.In addition, the sheet of the upper layer 20 and the lower layer 30 as described above is preferably produced to have a weight of 10g / m 2 ~ 30g / m 2 , the thickness of the sheet is changed in accordance with the weight, the weight is Smaller ones are thinner and larger ones are thicker.

상기와 같은 본 발명의 차량용 방진방음재는 중간층(10), 상부층(20) 및 하부층(30)으로 3개의 층으로 구성되어 있어 그 가공공정 및 생산공정이 보다 단순화될 수 있고, 이를 통해 생산비 절감을 할 수 있을 뿐만 아니라, 중량이나 두께가 감소되더라도 그 흡음효과가 유지될 수 있다.The vehicle anti-vibration soundproofing material of the present invention as described above is composed of three layers, the middle layer 10, the upper layer 20 and the lower layer 30, the processing process and production process can be more simplified, thereby reducing the production cost Not only that but also the sound absorbing effect can be maintained even if the weight or thickness is reduced.

또한, 본 발명의 방진방음재를 폴리에틸렌을 함유하고 있는 차량부품에 시공시 차량부품의 물질과 상부층(20) 및 하부층(30) 내에 함유되어 있는 폴리에틸렌 성분이 동종물질로 이루어져 초음파나 고주파 열융착을 통한 시공시 그 접착력이 강화되어 방진방음재가 쉽게 박리되지 않고 장시간 유지될 수 있는 효과를 갖는다.In addition, when the anti-vibration soundproofing material of the present invention is installed on a vehicle part containing polyethylene, the material of the vehicle part and the polyethylene component contained in the upper layer 20 and the lower layer 30 are made of the same material, and thus, ultrasonic or high frequency thermal fusion is performed. The adhesion is strengthened during construction has the effect that the dustproof soundproof material can be maintained for a long time without being easily peeled off.

이하 본 발명을 하기한 실시예를 통하여 보다 상세하게 설명하기로 하나, 이는 본 발명의 이해를 돕기 위하여 제시된 것일 뿐, 본 발명이 이에 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to the following examples, which are only presented to aid the understanding of the present invention, but the present invention is not limited thereto.

<실시예 1><Example 1>

폴리프로필렌 70%와 폴리우레탄 30%를 혼합하여 제조된 섬유를 부직공정을 통해 부직펠트 형상의 중간층 시트를 형성하고, 상기 중간층 시트의 상부와 하부에 폴리에틸렌 50%를 함유하고 있는 혼합섬유를 부직공정을 통해 제조된 부직펠트 형상의 상부층 시트 및 하부층 시트를 각각 형성하여 본 발명의 방진방음재를 제작하되, 상기 방진방음재의 크기는 가로 1000mm×세로 1200mm 이고, 상부층 시트: 중간층 시트: 하부층 시트의 중량비율이 1:20:1이며, 전체중량이 200g이 되도록 제작하였다.A nonwoven felt-shaped intermediate layer sheet is formed by a nonwoven process of fibers prepared by mixing 70% of polypropylene and 30% of a polyurethane, and a nonwoven process of mixed fibers containing 50% polyethylene on the upper and lower portions of the intermediate layer sheet. Forming the upper layer sheet and the lower layer sheet of the non-woven felt-shaped manufactured by respectively, to produce the vibration-proof soundproof material of the present invention, the size of the vibration-proof soundproof material is 1000mm × 1200mm long, the upper layer sheet: middle layer sheet: the weight ratio of the lower layer sheet This was 1: 20: 1 and manufactured to have a total weight of 200g.

<실시예 2><Example 2>

상기 실시예 1과 동일한 방법으로 방진방음재를 제작하되, 그 크기 및 각 층의 중량비율은 동일하게 하고, 전체중량이 300g이 되도록 제작하였다.A dustproof soundproofing material was prepared in the same manner as in Example 1, but the size and weight ratio of each layer were the same, and the total weight was prepared to be 300g.

<실시예 3><Example 3>

상기 실시예 2와 동일한 방법으로 방진방음재를 제작하되, 그 크기 및 각 층의 중량비율은 동일하게 하고, 전체중량이 400g이 되도록 제작하였다.A dustproof soundproofing material was prepared in the same manner as in Example 2, but the size and weight ratio of each layer were the same, and the total weight was produced to be 400g.

<비교예 1>Comparative Example 1

PET 콘쥬게이트 중공섬유로 부직공정을 통해 PET시트를 제조하고, 그 양면으로 직경 3마이크론 이하의 폴리프로필렌 장섬유를 사용하여 부직공정을 통해 제조된 PP시트를 적층한 다음, 상기 PP시트의 외측에 부직포를 각각 부착하여 종래의 방진방음재를 제작하였으며, 상기 방진방음재의 크기는 가로 1000mm×세로 1200mm 이고, 전체중량이 300g이 되도록 제작하였다.A PET sheet is manufactured through a nonwoven process using a PET conjugate hollow fiber, and a PP sheet manufactured through a nonwoven process using polypropylene long fibers having a diameter of 3 microns or less on both sides thereof is laminated, and then the outer side of the PP sheet. Non-woven fabrics were attached to each other to produce a conventional dustproof soundproofing material. The size of the dustproof soundproofing material was 1000mm in width x 1200mm in length, and the total weight was manufactured to be 300g.

<실험예 1>Experimental Example 1

상기 실시예 1 내지 3에 의해 제조된 본 발명의 방진방음재의 흡음율을 측정하기 위해 알파-캐빈 테스트를 실시하여 그 결과를 하기 표 1 및 도 3에 나타내었고, 비교예 1에 의해 제조된 종래 방진방음재의 흡음율을 알파-캐빈 테스트를 사용하여 측정하고, 그 결과를 하기 표 1에 나타내었다.In order to measure the sound absorption rate of the anti-vibration soundproofing material of the present invention prepared by Examples 1 to 3, an alpha-cabin test was performed, and the results are shown in Tables 1 and 3 below, and the conventional dustproofing prepared by Comparative Example 1 The sound absorption rate of the soundproof material was measured using an alpha-cabin test, and the results are shown in Table 1 below.

흡광계수(α)Extinction coefficient (α) 1/3 Octave Band(Hz)1/3 Octave Band (Hz) 실시예 1Example 1 실시예 2Example 2 실시예 3Example 3 비교예 1Comparative Example 1 400400 0.080.08 0.160.16 0.180.18 0.080.08 500500 0.140.14 0.220.22 0.260.26 0.140.14 630630 0.180.18 0.290.29 0.410.41 0.170.17 800800 0.360.36 0.480.48 0.590.59 0.350.35 10001000 0.480.48 0.570.57 0.690.69 0.450.45 12501250 0.60.6 0.660.66 0.840.84 0.590.59 16001600 0.820.82 0.870.87 0.980.98 0.760.76 20002000 0.830.83 0.960.96 1.081.08 0.810.81 25002500 0.820.82 0.870.87 0.980.98 0.80.8 31503150 0.830.83 0.860.86 0.940.94 0.820.82 40004000 0.970.97 0.910.91 1.01.0 0.970.97 50005000 0.990.99 1.081.08 1.081.08 0.990.99 63006300 0.820.82 0.920.92 0.920.92 0.820.82 80008000 0.950.95 0.940.94 0.940.94 0.960.96 1000010000 0.980.98 1.01.0 0.990.99 1One

상기 표 1에 보여지는 바와 같이 본 발명의 방진방음재(실시예 1 내지 3)와 비교예 1을 비교하였을 때 실시예 1의 경우 비교예 1 보다 작은 중량을 갖음에도 그 흡음효과는 비슷하게 나타난 것을 알 수 있고, 비교예 1과 동일한 중량을 갖는 실시예 2의 경우 비교예 1에 비하여 그 흡음율이 더 높은 것을 확인할 수 있으며, 실시예 3의 경우 또한 소리의 흡음율이 비교예 1에 비하여 높게 나타난 것을 알 수 있다.As shown in Table 1, when the dustproof soundproofing material of the present invention (Examples 1 to 3) and Comparative Example 1 were compared, the sound absorbing effect was found to be similar even in the case of Example 1 having a smaller weight than Comparative Example 1. In Example 2 having the same weight as that of Comparative Example 1, the sound absorption rate was higher than that of Comparative Example 1, and in Example 3 it was also found that the sound absorption rate of the sound was higher than that of Comparative Example 1. Can be.

또한, 도 3에 보여지는 바와 같이 본 발명의 방진방음재는 그 중량이 증가함에 따라 흡음율이 더욱 향상되는 것을 확인할 수 있다.In addition, as shown in Figure 3 can be confirmed that the sound-absorbing rate of the dustproof soundproofing material of the present invention is further improved as its weight increases.

상기와 같은 본 발명의 차량용 방진방음재는 종래의 방진방음재보다 작은 중량에서도 우수한 흡음율을 가지고 있기 때문에 차량에 적용시 종래보다 경량화된 방진방음재를 사용하여 우수한 흡음율을 발휘하도록 할 수 있으며, 경량화되었기 때문에 차량의 연비를 감소시킬 수 있는 등 종래의 방진방음재보다 더 유리하게 사용될 수 있다. As the anti-vibration soundproofing material for a vehicle of the present invention as described above has an excellent sound absorption rate even at a smaller weight than the conventional anti-vibration soundproofing material, when applied to a vehicle, it is possible to exert an excellent sound absorption rate by using a lighter-weight anti-vibration soundproofing material than the conventional, and the vehicle is lighter It can be used more advantageously than the conventional dustproof soundproof material, such as to reduce the fuel economy of.

도 1은 종래 방진방음재를 나타낸 부분절개 사시도.1 is a partial cutaway perspective view showing a conventional dustproof soundproofing.

도 2는 본 발명의 일 실시예에 따른 방진방음재의 단면도.2 is a cross-sectional view of the anti-vibration soundproofing material according to an embodiment of the present invention.

도 3은 본 발명의 실시예에 따른 흡음율을 나타낸 그래프.Figure 3 is a graph showing the sound absorption rate according to an embodiment of the present invention.

<도면의 주요부호에 대한 설명><Description of Major Symbols in Drawing>

10: 중간층10: middle layer

20: 상부층20: top layer

30: 하부층30: lower layer

Claims (6)

폴리프로필렌으로 이루어진 시트로 형성된 중간층과;An intermediate layer formed of a sheet made of polypropylene; 상기 중간층의 상부와 하부에 각각 형성되며, 폴리에틸렌이 첨가된 혼합섬유로 이루어진 시트로 형성된 상부층 및 하부층;을 포함하는 것을 특징으로 하는 차량용 방진방음재.The upper and lower layers respectively formed on the upper and lower portions of the intermediate layer, the upper layer and the lower layer formed of a sheet made of mixed fibers added with polyethylene. 청구항 1에 있어서, 상기 중간층의 시트는 폴리프로필렌과 점탄성수지를 혼합하여 제조된 섬유로 제조되는 것을 특징으로 하는 차량용 방진방음재.The vehicle anti-vibration soundproofing material according to claim 1, wherein the intermediate layer sheet is made of a fiber prepared by mixing polypropylene and viscoelastic resin. 청구항 2에 있어서, 상기 점탄성수지는 폴리우레탄, 폴리우레아 중 선택되는 하나 혹은 둘 이상이 혼합된 것을 특징으로 하는 차량용 방진방음재.The vehicle anti-vibration soundproofing material according to claim 2, wherein the viscoelastic resin is one or two or more selected from polyurethane and polyurea. 청구항 3에 있어서, 상기 중간층의 시트에는 점탄성수지가 20~35%가 함유되어 있는 것을 특징으로 하는 차량용 방진방음재.The vibration damping material for a vehicle according to claim 3, wherein the sheet of the intermediate layer contains 20 to 35% of a viscoelastic resin. 청구항 4에 있어서, 상기 혼합섬유는 폴리에틸렌 외에 폴리프로필렌, 폴리에틸렌테레프탈레이트, 나일론, 비스코레이온, 폴리카보네이트, 면, 양모, 솜 중 선택되는 하나 혹은 둘 이상을 혼합한 것을 특징으로 하는 차량용 방진방음재.The anti-vibration soundproofing material of claim 4, wherein the mixed fiber is mixed with one or more selected from polypropylene, polyethylene terephthalate, nylon, biscorayon, polycarbonate, cotton, wool, and cotton in addition to polyethylene. 청구항 5에 있어서, 상기 상부층 및 하부층의 시트에는 폴리에틸렌이 30~50%가 함유되어 있는 것을 특징으로 하는 차량용 방진방음재.The vehicle anti-vibration soundproofing material according to claim 5, wherein the sheet of the upper layer and the lower layer contains 30 to 50% of polyethylene.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106812029A (en) * 2017-01-18 2017-06-09 青岛理工大学 For the sawtooth interface damping-constraining railway roadbed of subway vibration and noise reducing
CN106835860A (en) * 2017-01-18 2017-06-13 青岛理工大学 For the grid interface damping-constraining railway roadbed of subway vibration and noise reducing

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* Cited by examiner, † Cited by third party
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JP4526618B2 (en) * 1999-08-23 2010-08-18 藤森工業株式会社 Work cloth made of multilayer stretched tape
KR100437869B1 (en) * 2002-12-21 2004-06-30 서연권 seat for automobile interior material and manufacturing method thereof
KR20050071403A (en) * 2005-06-08 2005-07-07 (주)두남에스에이 Sound absorbing material for car and thereof manufacturing method
KR100741377B1 (en) * 2006-04-06 2007-07-20 주식회사 만호 A manufacturing method of inner ceiling material using vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106812029A (en) * 2017-01-18 2017-06-09 青岛理工大学 For the sawtooth interface damping-constraining railway roadbed of subway vibration and noise reducing
CN106835860A (en) * 2017-01-18 2017-06-13 青岛理工大学 For the grid interface damping-constraining railway roadbed of subway vibration and noise reducing

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