KR20030086784A - Sound and electromagnetic wave-proof sheet - Google Patents

Sound and electromagnetic wave-proof sheet Download PDF

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Publication number
KR20030086784A
KR20030086784A KR1020020024956A KR20020024956A KR20030086784A KR 20030086784 A KR20030086784 A KR 20030086784A KR 1020020024956 A KR1020020024956 A KR 1020020024956A KR 20020024956 A KR20020024956 A KR 20020024956A KR 20030086784 A KR20030086784 A KR 20030086784A
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KR
South Korea
Prior art keywords
electromagnetic wave
soundproofing
specific gravity
iron oxide
shielding sheet
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KR1020020024956A
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Korean (ko)
Inventor
이창근
류형걸
김성일
Original Assignee
우진물산 주식회사
우제석
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Priority to KR1020020024956A priority Critical patent/KR20030086784A/en
Publication of KR20030086784A publication Critical patent/KR20030086784A/en

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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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B5/02—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 structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/24—Electrically-conducting paints
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • 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
    • 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
    • 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
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/212—Electromagnetic interference shielding

Abstract

PURPOSE: A soundproofing and electromagnetic wave blocking sheet is provided, which has sound insulating property, fire retarding property and low cost, reduces bottom impact sound, improves electromagnetic wave blocking performance and installation characteristics, and absorbs electromagnetic waves generated from the inner part of space. CONSTITUTION: The soundproofing and electromagnetic wave blocking sheet comprises a surface layer formed in a sheet shape by mixing thermoplastic synthetic resin with polyurethane elastomer having viscoelasticity, and ceramic powder and iron oxide powder having high specific gravity; and a back layer formed by coating conductive polymer on the surface of substrate, wherein the soundproofing and electromagnetic wave blocking sheet has a surface density of 2.1 kg/m¬2, wherein the ceramic powder and iron oxide powder having high specific gravity have a specific gravity of 3.0 or more, wherein the conductive polymer of the back layer is coated to a thickness of 30 to 100 μm on the substrate, wherein the surface layer comprises 10 to 15 wt.% of thermoplastic resin, 7 to 10 wt.% of polyurethane elastomer having viscoelasticity, 5 to 10 wt.% of plasticizer, 3 to 5 wt.% of fire retardant and 75 to 60 wt.% of ceramic and iron oxide, wherein the thermoplastic resin of the surface layer is polyvinyl chloride (PVC), and wherein the substrate of the back layer is polyester non-woven fabric.

Description

방음 및 전자파차단 시트{Sound and electromagnetic wave-proof sheet}Soundproof and electromagnetic wave-proof sheet

본 발명은 방음 및 전자파차단 시트에 관한 것으로, 더욱 상세하게는 건물내부를 소음과 전자파로부터 차단시켜줌과 동시에 난연성이며 바닥충격음을 저감시켜주는 방음 및 전자파차단 시트에 관한 것이다.The present invention relates to a soundproofing and electromagnetic shielding sheet, and more particularly, to a soundproofing and electromagnetic shielding sheet that blocks the interior of the building from noise and electromagnetic waves and at the same time flame retardant and reduces the floor impact sound.

본 발명에 의한 방음 및 전자파차단 시트는 아파트, 단독주택, 주상복합건물 등의 주거공간이나, 국제공항, 노래방, 학교와 학원 등의 대중공간, 또는 방송실, 전산실등 전자장비가 설치되어 있는 공간의 벽체나 바닥에 시공하여서 외부로부터의 소음이나 전자파를 차단시킬 뿐만 아니라 공간내부에서 발생하는 소음과 공동주택의 바닥충격음, 전자파를 효과적으로 흡수, 소멸시키는데 사용되는 것이다.Soundproofing and electromagnetic wave shielding sheet according to the present invention is a residential space of apartments, detached houses, residential complexes, public spaces such as international airports, karaoke rooms, schools and academies, or spaces where electronic equipment such as broadcasting rooms and computer rooms are installed. It is used to prevent noise or electromagnetic waves from the outside by installing on walls or floors, as well as to effectively absorb and dissipate noises generated inside the space, floor impact sounds of apartments, and electromagnetic waves.

종래에도 전자파차폐성과 차음성을 가지는 마루바닥재가 알려진바 있으며, 그 중에서 실용신안등록 제 0264161 호에 의한 마루바닥재는 무늬목의 하부에 순차적으로 산화철시트와 전자파차폐 시트가 접착된 것이었다.Conventionally, flooring materials having electromagnetic shielding and sound insulating properties have been known, among which flooring materials according to Utility Model Registration No. 0264161 were sequentially bonded to an iron oxide sheet and an electromagnetic shielding sheet on a lower part of a veneer.

상기의 마루바닥재는 마루바닥에만 시공할 수 있도록 된 것일 뿐만 아니라산화철시트는 차음재가 산화철만으로 되어 있기 때문에 점탄성 효력이 없어 바닥충격음 저감에는 불충분하였을 뿐만 아니라 가격이 높은 단점이 있었다.The flooring material is not only to be installed on the flooring floor, but also the iron oxide sheet is a sound insulation material made of iron oxide only because it has no viscoelastic effect, insufficient to reduce the floor impact sound and had a high price disadvantage.

또 상기의 마루바닥재 및 기존의 전자파차폐시트는 단순히 전도성카본 블랙 및 은을 이용한 전자파차폐도료를 도포한 것이어서 외부로부터의 전자파는 차단시킬 수 있었으나 공간 내부에서 발생하는 전자파를 흡수 소멸시킬 수 없었고 가격이 고가인 단점이 있었다.In addition, the flooring material and the conventional electromagnetic shielding sheet are simply coated with electromagnetic shielding paint using conductive carbon black and silver, which can block electromagnetic waves from the outside, but cannot absorb and destroy electromagnetic waves generated inside the space, There was an expensive disadvantage.

또 상기의 마루바닥재는 표면층에 존재하는 무늬목으로 인하여 견고하므로 재단(cutting)하기가 어렵고 시공성도 좋지 못하였다.In addition, the flooring material is hard due to the veneer present in the surface layer is difficult to cut (cutting) and poor construction.

본 발명은 차음성과 바닥충격음 저감, 전자파차단 능력이 우수하고, 공간내부로 부터 발생하는 전자파까지도 흡수, 소멸시킬 수 있고, 가격이 저렴하며, 방염성을 가지며 또 시공성도 우수한 바닥충격음 저감, 방음 및 전자파차단 시트를 제공하는데 그 목적을 두고 있다.The present invention is excellent in sound insulation, floor impact sound reduction, electromagnetic wave shielding ability, absorbs and extinguishes even electromagnetic waves generated from the inside of the space, is inexpensive, flame-retardant, and excellent construction properties, floor impact sound reduction, sound insulation and The purpose is to provide an electromagnetic wave shielding sheet.

도 1 은 본 발명에 의한 시트의 분해사시도.1 is an exploded perspective view of a sheet according to the present invention.

본 발명을 예시도면에 의하여 상세히 설명하면 다음과 같다.The present invention will be described in detail by way of example.

도 1은 본 발명의 한 실시형태를 보인 방음 및 전자파차단 시트의 분리사시도로서, 표면층(2)과 배면층(1)으로 구성되어 있다.1 is an exploded perspective view of the sound insulation and electromagnetic wave shielding sheet showing an embodiment of the present invention, and is composed of a surface layer 2 and a back layer 1.

배면층(1)은 전자파를 차단하고 흡수, 소멸시켜주는 역할을 하는 층으로서, 기재(base)에 전도성 폴리머를 코팅시킨 것이다.The back layer 1 is a layer that serves to block, absorb and extinguish electromagnetic waves, and is a coating of a conductive polymer on a base.

본 발명에서 배면층(1)의 기재는 부직포, 종이, 유리섬유시트 또는 섬유포지중에서 선택한 것이며, 이 중에서 무게, 가격, 코팅성능을 종합적으로 고려할 때 부직포가 가장 바람직하다.In the present invention, the substrate of the backing layer 1 is selected from nonwoven fabric, paper, fiberglass sheet or fibrous paper, and among these, nonwoven fabric is most preferable in consideration of weight, price, and coating performance.

본 발명에서 배면층(1)에 도포되는 전도성폴리머는 폴리아닐린, 폴리피롤, 또는 폴리티오펜, 폴리파라페닐렌 중에서 선택한 것이다.In the present invention, the conductive polymer applied to the back layer 1 is selected from polyaniline, polypyrrole, polythiophene, and polyparaphenylene.

상기 전도성폴리머를 폴리아크릴이나 폴리우레탄에 혼합, 교반시켜서 코팅재를 만들고 상기 코팅재를 닥터나이프 또는 롤등으로 기재의 표면에 코팅하여 배면층(1)을 완성한다.The conductive polymer is mixed with polyacrylic or polyurethane and stirred to form a coating material, and the coating material is coated on the surface of the substrate with a doctor knife or roll to complete the back layer 1.

상기 배면층(1)은 표면에 코팅되어 있는 전도성폴리머는 유성과 수성으로 구분되어 있으며, 외부 또는 내부로부터의 전자파를 흡수하여 소멸시켜준다.The backing layer 1 is coated with a conductive polymer on the surface is divided into oil and aqueous, and absorbs and extinguishes electromagnetic waves from the outside or the inside.

본 발명에서 사용한 전도성폴리머는 분산안정제를 사용하여 전체의 입도가 1㎛ 이하가 되도록 하여 전도성을 높여 전자파 차폐효율을 증가시켰으며 코팅재의 두께는 30~100㎛이다.The conductive polymer used in the present invention uses a dispersion stabilizer to increase the electromagnetic shielding efficiency by increasing the conductivity to the particle size of 1㎛ or less and the thickness of the coating material is 30 ~ 100㎛.

두께가 100㎛보다 크면 배면층(1)의 제조원가가 상승하고, 30㎛미만이면 전자파의 흡수, 소멸효과가 기대되지 않는다.If the thickness is larger than 100 mu m, the manufacturing cost of the back layer 1 increases, and if the thickness is less than 30 mu m, the effect of absorbing and dissipating electromagnetic waves is not expected.

본 발명에서 표면층(2)은 바닥충격음 및 소음을 차단, 흡수시켜주는 방음층으로서, 열가소성수지에 점탄성을 가진 열가소성 폴리우레탄 엘라스토머, 난연제 비중이 3.0이상인 고비중 세라믹분말과 비중이 6.0이상인 산화철을 혼합하여 전체 비중이 4.0이상이 되도록하여 시트 상태로 만든 것이다.In the present invention, the surface layer (2) is a soundproofing layer that blocks and absorbs the floor impact sound and noise, a thermoplastic polyurethane elastomer having a viscoelasticity in thermoplastic resin, a high specific gravity ceramic powder having a specific gravity of flame retardant of 3.0 or more and iron oxide having a specific gravity of 6.0 or more. The total specific gravity is 4.0 or more to make a sheet state.

전체 비중이 4.0이상인 세라믹 및 산화철을 사용하면 시트의 면밀도를 높일 수 있고 동시에 차음성을 향상시킬 수 있다.The use of ceramics and iron oxides with a total specific gravity of 4.0 or more can increase the sheet density and improve sound insulation.

열가소성 폴리우레탄 엘라스토머는 기계적 강도가 뛰어나면서 점탄성을 가지고 있어 바닥충격음 저감에 효과적이다.Thermoplastic polyurethane elastomer has excellent mechanical strength and viscoelasticity, which is effective for reducing floor impact sound.

점탄성 지수 tan δ가 0.03~0.25 정도면 충격 흡수에 효과적이다.When the viscoelastic index tan δ is about 0.03 to 0.25, it is effective for shock absorption.

상기의 열가소성수지는 PVC, 폴리에틸렌 등 모든 열가소성수지를 이용할 수 있으나 가격, 성형성 등을 고려할 때 PVC수지가 가장 바람직하다.The thermoplastic resin may be any thermoplastic resin such as PVC or polyethylene, but PVC resin is most preferable in consideration of price, moldability, and the like.

혼합비율은 PVC등 열가소성수지 10~15중량%에 대하여 열가소성 폴리우레탄 엘라스토머 7~10중량%, 가소제 5~10중량%, 난연제 3~5중량%, 비중이 3.0이상인 고비중 세라믹분말과 산화철분말 75~60중량%로 하는 것이 좋다.The mixing ratio is 7 to 10% by weight of thermoplastic polyurethane elastomer, 5 to 10% by weight of plasticizer, 3 to 5% by weight of flame retardant, and specific gravity of 3.0 or more to 10 to 15% by weight of thermoplastic resin such as PVC and iron oxide powder 75 It is good to set it as -60 weight%.

본 발명의 시트는 면밀도가 2.1kg/㎡이상이 되도록 하는 것이 좋다.The sheet of the present invention preferably has a surface density of 2.1 kg / m 2 or more.

면밀도가 2.1kg/㎡미만이면 차음 및 전자파차폐효율이 저하된다.If the surface density is less than 2.1kg / ㎡ the sound insulation and electromagnetic shielding efficiency is lowered.

본 발명의 시트는 총 두께를 1.1~2.4mm로 하는 것이 좋으며, 이때 표면층(2)의 두께는 1.0~2.0mm, 배면층(1)의 두께는 0.1~0.4mm로 하는 것이 좋다.The sheet of the present invention preferably has a total thickness of 1.1 to 2.4 mm, wherein the thickness of the surface layer 2 is 1.0 to 2.0 mm, and the thickness of the back layer 1 is preferably 0.1 to 0.4 mm.

본 발명의 시트는 표면층(2)과 배면층(1)을 가열압착시켜서 결합 시킬 수도 있고, 접착제를 매개로하여 접착시킬 수도 있다.The sheet of the present invention may be bonded by hot pressing the surface layer 2 and the back layer 1, or may be bonded through an adhesive agent.

본 발명을 벽체에 시공함에 있어서는 배면층(1)을 벽면에 대고 표면층(2)이 외부로 노출되도록 한 다음에 타카 등을 이용하여 용이하게 부착시킬 수 있다.When the present invention is applied to a wall, the back layer 1 may be placed on the wall so that the surface layer 2 may be exposed to the outside, and then easily attached using a taka or the like.

이어서 초배작업을 하고 벽 마감재를 붙이면 차음성과 전자파차단성이 부여된 벽체가 완성된다.Subsequent work is carried out and the wall finishing material is applied to complete the wall with sound insulation and electromagnetic shielding properties.

본 발명의 시트는 상기한 바와 같이 콘코리트 벽체에 시공할 수 있을 뿐만 아니라 방이나 거실의 콘크리트 바닥이나 천정에 시공하여서 아파트 층간의 소음전달을 방지할 수 있으며 전자파도 차단시킬 수 있다.Sheets of the present invention can be installed on the concrete wall as described above, as well as on the concrete floor or ceiling of the room or living room to prevent noise transmission between apartment floors and to block electromagnetic waves.

본 발명에 의한 난연성, 바닥충격음 저감, 방음 및 전자파 차단 시트는 표 1, 2, 3에 표시한 바와 같이 차음성능과 전자파 차폐효율이 우수할 뿐만 아니라 난연성도 우수하다.Flame retardant, floor impact sound reduction, soundproofing and electromagnetic wave shielding sheet according to the present invention, as shown in Tables 1, 2, and 3 not only have excellent sound insulation performance and electromagnetic shielding efficiency but also excellent flame retardancy.

<표 1>TABLE 1

규격(mm)(W×L×T)/롤Dimensions (mm) (W × L × T) / Roll 면밀도(kg/㎡)Surface density (kg / ㎡) 차음성(55HZ)Sound insulation (55HZ) 전자파차폐효율Electromagnetic shielding efficiency 점탄성(tanδ)Viscoelastic (tanδ) 950×1,000×1.0950 × 1,000 × 1.0 2.12.1 15dB15 dB 95%95% 0.05~0.250.05-0.25 950×1,000×1.1950 × 1,000 × 1.1 2.42.4 16dB16 dB 94%94% 950×1,000×1.0950 × 1,000 × 1.0 2.42.4 17dB17 dB 93%93% 950×1,000×1.2950 × 1,000 × 1.2 4.04.0 22dB22 dB 88%88% 950×1,000×1.2950 × 1,000 × 1.2 3.03.0 20dB20 dB 90%90%

※ W : 폭 L : 길이 T : 두께※ W: Width L: Length T: Thickness

본 발명의 시트를 아파트에 시공하여 전자파차폐효율을 측정한 결과는 표 2와 같다.The results of measuring the electromagnetic shielding efficiency by constructing the sheet of the present invention in the apartment are shown in Table 2.

<표 2>TABLE 2

전자파구분Electromagnetic wave classification 측정도구Measuring tool 측정장소Measurement place 거실내벽Living room 거실천정Living room ceiling 방콘센트벽Wall outlet 주방전등Kitchen lamp 주방내벽Interior wall of the kitchen 전계(V/m)Electric field (V / m) PSEL02(EU품질인 증마크)PSEL02 (EU quality mark) 시공전Before construction 4040 380380 350350 120120 5050 시공후After construction 33 2020 3030 1515 44 효과(%)effect(%) 9393 9595 9191 8888 9292

본 발명의 시트는 가볍고 유연하여 재단하기가 용이하므로 시공성이 좋으며곡면형태의 모서리부분에도 쉽게 시공할 수 있다.The sheet of the present invention is light and flexible and easy to cut, so the workability is good and can be easily applied to the corner portion of the curved shape.

<표 3>TABLE 3

측정내용Measurement content 판정기준Criteria 시 료sample 판정Judgment 1One 22 33 44 55 잔염시간(초)Afterglow time (sec) 1차Primary 10이하below 10 00 00 1One 00 00 적합fitness 2차Secondary 10이하below 10 55 1One 66 44 66 합계Sum 50이하50 or less 2323 2차 잔염시간(초)Second afterglow time (sec) 30이하30 or less 66 22 77 44 77 적하에 의한 솜의 착화 유무Ignition of cotton by dripping 없을것No 없음none 없음none 없음none 없음none 없음none 적합fitness 지지용 클램프까지의 연소확대 유무Increased combustion up to the support clamp 없을것No 없음none 없음none 없음none 없음none 없음none

Claims (7)

열가소성 합성수지에 점탄성을 가진 폴리우레탄 엘라스토머, 고비중 세라믹분말 및 산화철분말을 혼합시켜서 시트상태를 만든 표면층(2)과, 기재표면에 전도성폴리머를 코팅시킨 배면층(1)으로 구성되어 있는 것을 특징으로 하는 방음 및 전자파 차단 시트.It is composed of a surface layer (2) made of a sheet state by mixing a viscoelastic polyurethane elastomer, high specific gravity ceramic powder and iron oxide powder in a thermoplastic synthetic resin, and a back layer (1) coated with a conductive polymer on the surface of the base material. Soundproof and electromagnetic shielding sheet. 청구항 1 에서, 면밀도가 2.1kg/㎡임을 특징으로 하는 방음 및 전자파 차단 시트.The soundproofing and electromagnetic wave shielding sheet according to claim 1, wherein the surface density is 2.1 kg / m 2. 청구항 1 에서, 고비중 세라믹 및 산화철은 비중이 3.0이상인 것을 특징으로 하는 방음 및 전자파 차단 시트.The soundproofing and electromagnetic wave shielding sheet according to claim 1, wherein the specific gravity ceramic and the iron oxide have a specific gravity of 3.0 or more. 청구항 1 에서, 배면층(1)은 전도성폴리머의 코팅 두께가 30㎛~100㎛임을 특징으로 하는 방음 및 전자파 차단 시트.The soundproofing and electromagnetic wave shielding sheet of claim 1, wherein the backing layer (1) has a coating thickness of 30 μm to 100 μm. 청구항 1 에서, 표면층(2)은 다음의 조성으로 되어 있는 것을 특징으로 하는 방음 및 전자파 차단 시트.The soundproofing and electromagnetic wave shielding sheet according to claim 1, wherein the surface layer (2) has the following composition. 다음next 열가소성수지 10~15중량%10-15 wt% of thermoplastic resin 점탄성을 가진 폴리우레탄엘라스토머 7~10중량%7 ~ 10% by weight of polyurethane elastomer with viscoelasticity 가소제 5~10중량%Plasticizer 5-10 wt% 난연제 3~5중량%Flame retardant 3-5% by weight 세라믹 및 산화철 75~60중량%75 ~ 60 wt% ceramic and iron oxide 청구항 5 에서, 표면층(2)의 열가소성수지는 PVC임을 특징으로 하는 방음 및 전자파 차단 시트.The soundproofing and electromagnetic wave shielding sheet according to claim 5, wherein the thermoplastic resin of the surface layer (2) is PVC. 청구항 1 에서, 배면층(1)의 기재는 폴리에스터 부직포 임을 특징으로 하는 방음 및 전자파 차단 시트.The soundproofing and electromagnetic wave shielding sheet according to claim 1, wherein the substrate of the backing layer (1) is a polyester nonwoven fabric.
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* Cited by examiner, † Cited by third party
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KR20050096483A (en) * 2004-03-30 2005-10-06 주식회사 이이엠 Sound absorbing materials for a building
WO2008130201A2 (en) * 2007-04-24 2008-10-30 Nano Interface Technology Laminate sheet for electromagnetic radiation shielding and grounding
KR101008499B1 (en) * 2008-08-29 2011-01-17 주식회사 엘지생활건강 Tweezers for faber sheet
FR2971197A1 (en) * 2011-02-08 2012-08-10 Digitex Decowest Sas Multifunctional surface coating for e.g. wall, has two layers, where one of layers is formed from nonwoven felt comprising polyester fibers bonded together by mechanical and/or chemical connection, and layers and coating are joined by glue

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KR200264161Y1 (en) * 2001-11-08 2002-02-19 우진물산 주식회사 Floors
KR20020085025A (en) * 2001-05-04 2002-11-16 (주)성창산업 Composite and Mat Utilizing Thereof for Acoustic Insulation with Absorption Function of Electromagnetic Wave and Water-Vein Wave
KR20020096479A (en) * 2001-06-20 2002-12-31 장홍근 Thermoplastic resin-laminated structure, preparing method and use thereof

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KR950008601A (en) * 1993-09-10 1995-04-19 기창서 Soundproof composition and molded article thereof
JPH09116293A (en) * 1995-10-23 1997-05-02 Nippon Plast Kogyo Kk Electromagnetic wave shielding material, its manufacture, and its application method
JPH10211670A (en) * 1997-01-30 1998-08-11 Sekisui Chem Co Ltd Soundproof sheet for floor
JPH10217379A (en) * 1997-02-03 1998-08-18 Toyobo Co Ltd Conductive laminate film
KR200230929Y1 (en) * 2001-02-12 2001-07-03 주식회사 엘지씨아이 Conductive Polyvinylchloride Flooring Using Conductive Polymer or Silver Flaked Powder
KR20020085025A (en) * 2001-05-04 2002-11-16 (주)성창산업 Composite and Mat Utilizing Thereof for Acoustic Insulation with Absorption Function of Electromagnetic Wave and Water-Vein Wave
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050096483A (en) * 2004-03-30 2005-10-06 주식회사 이이엠 Sound absorbing materials for a building
WO2008130201A2 (en) * 2007-04-24 2008-10-30 Nano Interface Technology Laminate sheet for electromagnetic radiation shielding and grounding
WO2008130201A3 (en) * 2007-04-24 2008-12-11 Nano Interface Technology Laminate sheet for electromagnetic radiation shielding and grounding
KR101008499B1 (en) * 2008-08-29 2011-01-17 주식회사 엘지생활건강 Tweezers for faber sheet
FR2971197A1 (en) * 2011-02-08 2012-08-10 Digitex Decowest Sas Multifunctional surface coating for e.g. wall, has two layers, where one of layers is formed from nonwoven felt comprising polyester fibers bonded together by mechanical and/or chemical connection, and layers and coating are joined by glue

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