KR0168105B1 - Soundproof for densely filling and the preparation thereof - Google Patents

Soundproof for densely filling and the preparation thereof Download PDF

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Publication number
KR0168105B1
KR0168105B1 KR1019930030285A KR930030285A KR0168105B1 KR 0168105 B1 KR0168105 B1 KR 0168105B1 KR 1019930030285 A KR1019930030285 A KR 1019930030285A KR 930030285 A KR930030285 A KR 930030285A KR 0168105 B1 KR0168105 B1 KR 0168105B1
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South Korea
Prior art keywords
plate
thickness
olefin resin
foam
thermoplastic olefin
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KR1019930030285A
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Korean (ko)
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KR950018202A (en
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양경모
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전성원
현대자동차주식회사
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Publication of KR950018202A publication Critical patent/KR950018202A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3492—Expanding without a foaming agent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3415—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/569—Shaping and joining components with different densities or hardness
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/16—Ethene-propene or ethene-propene-diene copolymers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Laminated Bodies (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

수직충진율 및 발포배율이 향상된 고충진용 차음재를 제공하기 위한 것으로서, 라이너(liner)판 위에 접착제를 도포하고, 표피고무판보다 크기가 작은 열가소성 올레핀 수지판을 중앙에 올려 놓고, 그 위에 표피 고무판을 놓아 적층물을 만들고, 이 적층물을 오븐에서 가열하여 발포시키는 것으로 이루어지는 고충진용 차음재의 제조방법.In order to provide a high-filling sound insulation material with improved vertical filling rate and foaming ratio, an adhesive is applied on a liner plate, a thermoplastic olefin resin plate having a smaller size than the skin rubber plate is placed in the center, and a skin rubber plate is placed thereon. The manufacturing method of the high filling sound insulation material which consists of making water and heating this lamination | stacking in an oven and foaming.

Description

고충진용 차음재 및 그의 제조방법High filling sound insulation material and manufacturing method thereof

제1도는 본 발명에 따라서 열가소성 올레핀 수지와 고무시이트의 적층물을 발포시켜 고충진용 차음재를 제조하는 과정을 나타내며,1 shows a process of manufacturing a high-filling sound insulation material by foaming a laminate of a thermoplastic olefin resin and a rubber sheet according to the present invention.

제2도는 종래기술에 따라서 고무시이트를 발포시켜 고충진용 차음재를 제조하는 과정을 나타낸다.2 is a view illustrating a process of manufacturing a high filling sound insulating material by foaming a rubber sheet according to the related art.

본 발명은 차음재에 관한 것으로서, 더욱 상세하게는 필라 트림(pilla trim)에 충진시켜 고주파음을 차단시키는 차음재 및 그의 제조방법에 관한 것이다.The present invention relates to a sound insulating material, and more particularly, to a sound insulating material and a method of manufacturing the same to fill a pillar trim (pilla trim) to block high frequency sound.

자동차나 철도차량류, 건재류, 가전제품, 산업용기기, 엘리베이터, 사무기기류, 주방기기류 등에서 각종 방음재가 사용되어 왔다.Various sound insulation materials have been used in automobiles, railway vehicles, building materials, home appliances, industrial equipment, elevators, office equipment, and kitchen equipment.

소음에는 공기를 매개로 하여 전달하는 공기 전파음과 고체를 매개로 한 고체전파음이 있다. 차음과 흡음은 공기전파음을, 방진과 제진은 고체전파음을 대상으로 한 대책이다. 한편 소음을 방지하는 입장에서 보았을 때 소리, 진동에너지를 흡수하는 것이 흡음과 제진이고, 반사하는 것이 차음과 방진이 된다.Noise includes airborne sound propagating through air and solid state sound propagating through solid. Sound insulation and sound absorption are airwaves, and dust and vibration are solid waves. On the other hand, from the standpoint of preventing noise, absorbing sound and vibration energy is sound absorption and vibration suppression, and reflecting is sound insulation and vibration prevention.

소리와 진동에 관한 방음은 그 메카니즘에 따라서 차음, 흡음, 제진, 방진으로 나눌 수 있다.Sound insulation relating to sound and vibration can be divided into sound insulation, sound absorption, vibration damping, and vibration isolation according to its mechanism.

차음이라 함은 음파를 전파경로의 도중에서 차단, 입사음에 대하여 투과음을 작게 함으로써 투과에너지가 작은 재료가 차음재이고, 면밀도, 굽힘의 강성, 내부 손실로 특성이 결정된다.Sound insulation means that a material with a small transmission energy is a sound insulation material by blocking a sound wave in the middle of a propagation path and making a transmission sound small for an incident sound, and characteristics are determined by surface density, bending rigidity, and internal loss.

이러한 목적을 위하여 유리솜, 석면, 발포 플라스틱, 고무 등의 집합체나 보오드 등을 각종 표면 형상을 갖는 제품으로 사용하여 왔다.For this purpose, aggregates, boards and the like of glass wool, asbestos, foamed plastics, rubber and the like have been used as products having various surface shapes.

현재로는 EPDM(ethylene-propylene-diene monomer) 고무의 고배율(500∼800%)로 발포시킨 제품을 필라트림(pillar trim)에 충진시켜 고주파음을 차단시키는 차음재가 사용되고 있다. 그러나 이러한 차음재의 경우에는 고무 시이트를 고발포시키기 때문에 발포과정에서 흐르는 현상이 발생하고, 흐르는 현상으로 인하여 고발포는 되나 수직으로의 충진이 부족하여 차음의 효과가 현저히 저하되는 단점이 있다.Currently, sound insulation materials which block high frequency sound by filling a product with foamed at a high magnification (500-800%) of EPDM (ethylene-propylene-diene monomer) rubber to a pillar trim are used. However, in the case of such a sound insulating material, the rubber sheet is highly foamed, so that a phenomenon occurs in the foaming process, and high flow is caused by the flowing phenomenon, but the filling of the vertical material is insufficient, so that the effect of sound insulation is significantly reduced.

본 발명은 상기한 바와 같은 종래기술의 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 고무시이트의 발포 과정에서 생기는 흐르는 현상을 방지하고 발포배율이 향상된 고충진용 차음재를 제공하는 것이다.The present invention is to solve the problems of the prior art as described above, it is an object of the present invention to provide a high-filling sound insulation material for preventing the flow phenomenon occurring in the foaming process of the rubber sheet and improved foaming magnification.

상기한 목적을 달성하기 위하여, 본 발명은 라이너(liner)판위에 접착제를 도포하고, 표피 고무판보다 크기가 작은 열가소성 올레핀 수지판을 중앙에 올려 놓고, 그 위에 표피고무판을 놓아 적층물을 만들고, 이를 오븐에서 가열하여 발포시키는 것으로 이루어지는 고충진용 차음재의 제조방법을 제공한다.In order to achieve the above object, the present invention is applied to the adhesive on the liner (liner) plate, the thermoplastic olefin resin plate smaller in size than the skin rubber plate is placed in the center, the skin rubber plate is placed on it to make a laminate, It provides a method for producing a high-filling sound insulating material consisting of foaming by heating in an oven.

또한 본 발명은 접착제가 상부에 도포된 라이너 판 위에 열가소성 올레핀 수지 발포제가 형성되어 있고 그 외부에 고무 발포체가 형성되어 있는 것을 특징으로 하는 고충진용 차음재를 제공한다.In another aspect, the present invention provides a high-filling sound insulating material, characterized in that the thermoplastic olefin resin foaming agent is formed on the liner plate coated with an adhesive, and a rubber foam is formed on the outside thereof.

본 발명을 상세히 설명하면 다음과 같다.The present invention is described in detail as follows.

표피 고무판으로 사용될 수 있는 재료로는 예를 들어 EPDM, SBR, SBR/EPDM, BR/EPDM 등이 있으며, EPDM(ethylene-propylene-diene terpolymer) 고무를 사용하는 것이 바람직하다.Examples of materials that can be used as the skin rubber sheet include EPDM, SBR, SBR / EPDM, BR / EPDM, and the like, and it is preferable to use ethylene-propylene-diene terpolymer (EPDM) rubber.

라이너 판으로 사용되는 재질로는 예를 들어 실리콘, KFM 등의 코팅 페이퍼를 사용할 수 있다.As a material used as a liner plate, coating paper, such as silicone and KFM, can be used, for example.

열가소성 올레핀 수지판은 표피 고무판 보다 가로, 세로의 치수가 약 2분의 1정도로 작은 것을 사용한다.As the thermoplastic olefin resin sheet, one having a width and length smaller than the skin rubber sheet is about one half smaller.

라이너 판 위에 접착제를 도포한 후에 열가소성 올레핀 수지판을 놓고 그 위에 표피 고무판을 올려 놓는다. 사용 가능한 접착제의 종류로는 예를 들어 부틸 EPDM, 실리콘, KFM, 폴리머필름 등이 있다.After applying the adhesive on the liner plate, the thermoplastic olefin resin plate is placed and the skin rubber plate is placed thereon. Examples of the adhesive that can be used include butyl EPDM, silicone, KFM, and polymer film.

발포 이전의 전체 적층물의 두께는 4 내지 7mm, 바람직하게는 약 5mm 정도가 적당하며 표피 고무판과 열가소성 올레핀 수지판의 두께는 거의 동일한 것을 사용한 표피고무판이 너무 얇은 경우에는 발포배율이 다소 떨어지며, 지나치게 두꺼운 경우에는 형상 유지가 곤란하다. 또한 열가소성 올레핀 수지판이 너무 얇거나 두꺼운 경우에는 표피 고무판의 반대 영향이 일어나며 특히 너무 두꺼운 경우에는 충전율이 다소 떨어질 우려가 있다.The overall thickness of the laminate before foaming is 4 to 7 mm, preferably about 5 mm, and if the skin rubber plate using the same thickness of the skin rubber plate and the thermoplastic olefin resin plate is too thin, the foaming ratio is slightly lowered and is too thick. In this case, shape maintenance is difficult. In addition, when the thermoplastic olefin resin sheet is too thin or thick, the opposite effect of the epidermal rubber sheet occurs, and in particular, when the thickness is too thick, the filling rate may be slightly decreased.

상기한 바와 같은 적층물을 약 180℃의 오븐에서 30분간 가열 발포시키면 두께 약 60m의 발포체가 얻어진다.The above laminate was heated and foamed in an oven at about 180 ° C. for 30 minutes to obtain a foam having a thickness of about 60 m.

본 발명에 따라 제조된 발포체는 발포 배율이 향상되고 수직 충진 특성이 우수하므로, 차음재로서 필라트림에 충진시켜 사용할 대 차음 효과가 현저하게 우수하다.Since the foam produced according to the present invention has an improved foaming ratio and excellent vertical filling properties, it is remarkably excellent in sound insulation effect when used in filling the filament as a sound insulating material.

하기에 본 발명의 바람직한 실시예 및 본 발명의 효과를 입증할 수 있는 비교예를 기재한다.The following describes preferred examples of the present invention and comparative examples that can demonstrate the effects of the present invention.

[실시예 1]Example 1

가로 20cm×세로 20cm×두께 1mm의 코팅 이형 재질 라이너 판위에 접착제로서 수지 필름을 가로 가로 15cm×세로 15cm×두께 0.03mm로 접착시켰다. 그 위에 가로 가로 8cm×세로 8cm×두께 2mm의 열가소성 올레핀 수지판을 중앙에 올려놓은 뒤, 가로 15cm×세로 15cm×두께 2mm EPDM 고무판을 놓아 적층물을 만들었다.The resin film was adhere | attached at 15 cm x 15 cm x 0.03 mm in thickness as an adhesive agent on the coating release material liner plate of 20 cm x 20 cm x thickness 1 mm. A thermoplastic olefin resin plate having a width of 8 cm x 8 cm x 2 mm was placed on the center, and a laminate was formed by placing a 15 cm x 15 cm x 2 mm EPDM rubber plate.

이 적층물을 180℃ 오븐내에 30분 동안 두어 가열 발포시켜 두께 40mm의 발포체를 수득하였다.This laminate was placed in a 180 ° C. oven for 30 minutes and heated to foam to obtain a foam having a thickness of 40 mm.

[실시예 2]Example 2

EPDM 고무판과 열가소성 올레핀 수지판의 두께를 각각 3cm와 4cm로 변경하는 것을 제외하고는, 상기 실시예 1에서와 동일하게 실시하여 두께 60mm의 발포체를 수득하였다.A foam having a thickness of 60 mm was obtained in the same manner as in Example 1, except that the thicknesses of the EPDM rubber plate and the thermoplastic olefin resin plate were changed to 3 cm and 4 cm, respectively.

[비교예 1]Comparative Example 1

가로 20cm×세로 20cm×두께 1mm의 코팅 이형 재질 라이너 판위에 접착제로서 수지 필름을 가로 15cm×세로 15cm×두께 0.03mm로 접착시켰다. 그 위에 가로 가로 15cm×세로 15cm×두께 4mm의 EPDM 고무판을 올려 놓아 적층물을 만들었다. 이 적층물을 180℃ 오븐내에 30분 동안 두어 가열 발포시켜 두께 15mm의 발포체를 수득하였다.The resin film was adhere | attached at 15 cm x 15 cm x 0.03 mm in thickness as an adhesive agent on the coating release material liner board of 20 cm x 20 cm x thickness 1 mm. The laminate was made by placing an EPDM rubber sheet having a width of 15 cm x 15 cm x 4 mm on it. The laminate was placed in a 180 ° C. oven for 30 minutes and heated to give a foam having a thickness of 15 mm.

[비교예 2]Comparative Example 2

EPDM 고무판의 두께를 6mm로 변경하는 것을 제외하고는, 상기 비교예 1에서와 동일하게 실시하여 두께 20mm의 발포체를 수득하였다.A foam having a thickness of 20 mm was obtained in the same manner as in Comparative Example 1, except that the thickness of the EPDM rubber sheet was changed to 6 mm.

실시예 1, 2 및 비교예 1, 2의 결과로부터 알 수 있는 바와 같이, 본 발명에 따라 제조된 발포체는 고무시이트 발포시의 단점인 옆으로 흐르는 현상을 개선하여 수직 충진율이 향상되고 발포배율이 약 30% 정도 증가된 우수한 고충진용 차음재이다.As can be seen from the results of Examples 1 and 2 and Comparative Examples 1 and 2, the foam prepared according to the present invention improves the side flow phenomenon, which is a disadvantage in foaming the rubber sheet, thereby improving the vertical filling rate and increasing the foaming ratio. It is an excellent high-filling sound insulation material that is increased by about 30%.

Claims (9)

라이너(liner)판 위에 접착제를 도포하고, 표피 고무판 보다 크기가 작은 열가소성 올레핀 수지판을 중앙에 올려 놓고, 그 위에 표피 고무판을 놓아 적층물을 만들고, 이 적층물을 오븐에서 가열하여 발포시키는 것으로 이루어지는 고충진용 차음재의 제조방법.It consists of applying an adhesive on a liner plate, placing a thermoplastic olefin resin plate smaller in size than the skin rubber plate, placing a skin rubber plate on it to form a laminate, and heating the foam in an oven to foam. Manufacturing method of high filling sound insulation material. 제1항에 있어서, 표피고무판은 EPDM 고무재질인 것을 특징으로 하는 방법.The method of claim 1 wherein the skin rubber plate is EPDM rubber material. 제1항에 있어서, 표피고무판의 두께가 2 내지 4mm인 것을 특징으로 하는 방법.The method of claim 1, wherein the thickness of the skin rubber plate is 2 to 4mm. 제1항에 있어서, 열가소성 올레핀 수지판의 두께가 2 내지 3mm인 것을 특징으로 하는 방법.The method according to claim 1, wherein the thermoplastic olefin resin sheet has a thickness of 2 to 3 mm. 제1항에 있어서, 전체 적층물의 두께는 4 내지 7mm인 것을 특징으로 하는 방법.The method of claim 1 wherein the thickness of the entire stack is between 4 and 7 mm. 제5항에 있어서, 전체 적층물의 두께는 약 5mm인 것을 특징으로 하는 방법.The method of claim 5, wherein the thickness of the entire stack is about 5 mm. 제1항에 있어서, 열가소성 올레핀 수지판의 가로, 세로 치수는 표피고무판의 약 2분의 1임을 특징으로 하는 방법.The method of claim 1 wherein the transverse and longitudinal dimensions of the thermoplastic olefin resin plate are about one half of the skin rubber plate. 제1항에 있어서, 상기 적층물을 약 180℃ 오븐에서 30분간 가열하여 발포시킴을 특징으로 하는 방법.The method of claim 1 wherein the laminate is heated by foaming in an oven at about 180 ° C. for 30 minutes. 접착제가 상부에 도포된 라이너 판 위에 열가소성 올레핀 수지 발포체가 형성되어 있고 그 외부에 고무 발포체가 형성되어 있는 것을 특징으로 하는 고충진용 차음재.A thermoplastic olefin resin foam is formed on a liner plate having an adhesive applied thereon, and a rubber foam is formed on the outside thereof.
KR1019930030285A 1993-12-28 1993-12-28 Soundproof for densely filling and the preparation thereof KR0168105B1 (en)

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