KR101357011B1 - Headliner for vehicle using vacuum insulation panel - Google Patents

Headliner for vehicle using vacuum insulation panel Download PDF

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Publication number
KR101357011B1
KR101357011B1 KR1020120074039A KR20120074039A KR101357011B1 KR 101357011 B1 KR101357011 B1 KR 101357011B1 KR 1020120074039 A KR1020120074039 A KR 1020120074039A KR 20120074039 A KR20120074039 A KR 20120074039A KR 101357011 B1 KR101357011 B1 KR 101357011B1
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KR
South Korea
Prior art keywords
layer
vacuum insulation
vehicle
insulation layer
ceiling material
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KR1020120074039A
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Korean (ko)
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KR20140006620A (en
Inventor
이기동
이원구
조병철
유종현
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엔브이에이치코리아(주)
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Priority to KR1020120074039A priority Critical patent/KR101357011B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • B60R13/0212—Roof or head liners
    • B60R13/0218—Roof or head liners supported by adhesion with the roof panel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0815—Acoustic or thermal insulation of passenger compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/06—Fixed roofs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
    • B62D29/043—Superstructures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
    • B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
    • B60R2011/0028—Ceiling, e.g. roof rails

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

본 발명은 진공단열층이 형성된 차량용 천정재에 관한 것으로, 더욱 상세하게는 기재층, 상기 기재층의 일면에 적층되는 보강재층, 상기 보강재층이 형성된 기재층의 양면에 적층되는 부직포층 및 상기 부직포층의 일면에 형성되는 진공단열층으로 이루어진다.
전술한 구성으로 이루어진 진공단열층이 형성된 차량용 천정재는 진공단열층이 형성되어 단열효과가 탁월하며, 자체하중에 의한 처짐 및 뒤틀림에 의한 처짐 현상이 개선된 효과를 나타낸다.The present invention relates to a vehicle ceiling material having a vacuum insulation layer, and more particularly, a base layer, a reinforcement layer laminated on one surface of the base layer, a nonwoven fabric layer and the nonwoven fabric layer laminated on both sides of the base layer on which the reinforcement layer is formed. It is made of a vacuum insulating layer formed on one surface of.
The vehicle ceiling material having the vacuum insulation layer having the above-described configuration has an excellent heat insulation effect due to the vacuum insulation layer being formed, and the deflection phenomenon due to the sag and the distortion caused by the self load is improved.

Description

진공단열재를 이용한 차량용 천정재 {HEADLINER FOR VEHICLE USING VACUUM INSULATION PANEL}Vehicle ceiling material using vacuum insulation material {HEADLINER FOR VEHICLE USING VACUUM INSULATION PANEL}

본 발명은 진공단열재를 이용한 차량용 천정재에 관한 것으로, 더욱 상세하게는 진공단열층이 형성되어 단열효과가 탁월하며, 자체하중에 의한 처짐 및 튀틀림에 의한 처짐현상이 개선된 진공단열재를 이용한 차량용 천정재에 관한 것이다.
The present invention relates to a ceiling material for a vehicle using a vacuum insulator, and more particularly, a vacuum insulation layer is formed to provide excellent heat insulation effect, and a ceiling for a vehicle using a vacuum insulation material in which sag and deflection due to self-load are improved. It's about ashes.

본 발명은 진공단열재를 이용한 차량용 천정재에 관한 것으로, 더욱 상세하게는 진공단열층이 형성되어 단열효과가 탁월하며, 자체하중에 의한 처짐 및 튀틀림에 의한 처짐현상이 개선된 진공단열재를 이용한 차량용 천정재에 관한 것이다.The present invention relates to a ceiling material for a vehicle using a vacuum insulator, and more particularly, a vacuum insulation layer is formed to provide excellent heat insulation effect, and a ceiling for a vehicle using a vacuum insulation material in which sag and deflection due to self-load are improved. It's about ashes.

차량에 사용되는 천정재는 통상적으로 펠트 형태 및 보드 형태로 성형되어 사용되며, 차량의 천정부에 부착되어 외부로부터 차량의 실내로 유입되는 소음을 차단하고 차량의 단열성을 향상시키는 역할을 한다.The ceiling material used in a vehicle is usually molded in a felt or board form and attached to a ceiling portion of the vehicle to block noise introduced from the outside into the interior of the vehicle and to improve heat insulation of the vehicle.

종래에 차량용 천정재는 차량의 외부에서 유입되는 소음을 흡음 또는 차음하는 성능에 비해 외부에서 유입되는 열에 대한 단열효과가 미미한 문제점이 있었다.Conventionally, a ceiling material for a vehicle has a problem in that a thermal insulation effect against heat introduced from the outside is insignificant compared to a performance of absorbing or insulating noise introduced from the outside of the vehicle.

또한, 제품의 강성부족으로 인해 자체하중으로 인해 처짐이나 튀틀림으로 인한 처짐 현상이 발생하는 문제점이 있었다.
In addition, due to the lack of rigidity of the product due to its own load, there was a problem that the deflection caused by the deflection or tumbling.

본 발명의 목적은 진공단열층을 형성하여, 차량의 외부에서 유입되는 열에 대한 단열효과가 월등하게 향상된 진공단열층이 형성된 차량용 천정재를 제공하는 것이다.An object of the present invention is to form a vacuum insulation layer, to provide a vehicle ceiling material is formed with a vacuum insulation layer is significantly improved thermal insulation effect on the heat flowing from the outside of the vehicle.

본 발명의 다른 목적은 자체하중으로 인한 처짐이나 뒤틀림에 의한 처짐 현상이 개선된 진공단열층이 형성된 차량용 천정재를 제공하는 것이다.
Another object of the present invention is to provide a ceiling material for a vehicle in which a vacuum insulation layer is formed in which sagging due to self load or sagging due to distortion is improved.

본 발명의 목적은 기재층, 상기 기재층의 일면에 적층되는 보강재층, 상기 보강재층이 형성된 기재층의 양면에 적층되는 부직포층 및 상기 부직포층의 일면에 형성되는 진공단열층으로 이루어지는 것을 특징으로 하는 진공단열층이 형성된 차량용 천정재를 제공함에 의해 달성된다.An object of the present invention is characterized by consisting of a base layer, a reinforcing material layer laminated on one side of the base material layer, a nonwoven fabric layer laminated on both sides of the base material layer formed with the reinforcing material layer and a vacuum insulation layer formed on one side of the nonwoven fabric layer. It is achieved by providing a vehicle ceiling material in which a vacuum insulation layer is formed.

본 발명의 바람직한 특징에 따르면, 상기 기재층은 유리섬유 40 내지 60 중량부와 바인더섬유 40 내지 60 중량부로 이루어지는 것으로 한다.According to a preferred feature of the invention, the base layer is made of 40 to 60 parts by weight of glass fibers and 40 to 60 parts by weight of binder fibers.

본 발명의 더 바람직한 특징에 따르면, 상기 보강재층은 30 내지 70㎛ 두께를 갖는 나일론필름 양면에 내열 폴리올레핀계 접착필름을 적층하여 형성되는 것으로 한다.According to a more preferred feature of the invention, the reinforcing material layer is to be formed by laminating a heat-resistant polyolefin-based adhesive film on both sides of the nylon film having a thickness of 30 to 70㎛.

본 발명의 더욱 바람직한 특징에 따르면, 상기 진공단열층은 심재 및 상기 심재를 감싸 수납하며, 가스 배리어성을 갖는 표피재로 이루어지는 것으로 한다.According to a more preferred feature of the invention, the vacuum insulation layer is to be made of a skin material having a gas barrier property, and wrapped around the core material and the core material.

본 발명의 더욱 더 바람직한 특징에 따르면, 상기 심재의 내부에는 가스 성분을 흡수하는 흡착제가 개재되는 것으로 한다.According to a still more preferable feature of the present invention, the inside of the core is to be interposed with an adsorbent for absorbing gas components.

본 발명의 더욱 더 바람직한 특징에 따르면, 상기 심재는 허니컴 구조이며, 금속 또는 유리에 에폭시 수지를 바인더로 혼합하여 이루어지는 것으로 한다.According to a still more preferable feature of the present invention, the core material has a honeycomb structure, and is made by mixing an epoxy resin with a metal or glass as a binder.

본 발명의 더욱 더 바람직한 특징에 따르면, 상기 표피재는 알루미늄, 금, 은, 구리, 니켈, 코발트, 크롬 및 주석으로 이루어진 그룹으로부터 선택된 하나의 금속이 증착된 폴리올레핀으로 이루어지는 것으로 한다.
According to an even more preferred feature of the invention, the skin material is made of polyolefin deposited with one metal selected from the group consisting of aluminum, gold, silver, copper, nickel, cobalt, chromium and tin.

본 발명에 따른 진공단열층이 형성된 차량용 천정재는 진공단열층이 형성되어 차량의 외부에서 유입되는 열에 대한 단열효과가 탁월하다.The ceiling material for a vehicle having a vacuum insulation layer according to the present invention has an excellent heat insulation effect against heat introduced from the outside of the vehicle by forming a vacuum insulation layer.

또한, 자체하중에 의한 처짐이나 뒤틀림에 의한 처짐 현상이 개선된 차량용 천정재를 제공하는 탁월한 효과를 나타낸다.
In addition, it exhibits an excellent effect of providing a vehicle ceiling material which is improved in the deflection phenomenon due to the deflection due to the self load or the distortion.

도 1은 본 발명에 따른 진공단열층이 형성된 차량용 천정재를 나타낸 분해사시도이다.
도 2는 본 발명에 따른 진공단열층이 형성된 차량용 천정재를 35℃인 태양광 조사 조건에서 6시간 동안 방치한 후에 표면온도를 측정하여 나타낸 사진이다.
도 3은 본 발명의 실시예 1을 통해 제조된 진공단열층이 형성된 차량용 천정재의 자체하중에 의한 처짐량의 측정결과를 나타낸 사진이다.
도 4는 본 발명의 실시예 1을 통해 제조된 진공단열층이 형성된 차량용 천정재의 뒤틀림에 의한 처짐량의 측정결과를 나타낸 사진이다.
도 5는 비교예 1을 통해 제조된 차량용 천정재의 자체하중에 의한 처짐량의 측정결과를 나타낸 사진이다.
도 6은 비교예 1을 통해 제조된 차량용 천정재의 뒤틀림에 의한 처짐량의 측정결과를 나타낸 사진이다.1 is an exploded perspective view showing a ceiling material for a vehicle in which a vacuum insulation layer is formed according to the present invention.
Figure 2 is a photograph showing the measured surface temperature after leaving the vehicle ceiling material with a vacuum insulation layer according to the present invention for 6 hours at 35 ℃ solar irradiation conditions.
Figure 3 is a photograph showing the result of measuring the amount of deflection by the self-load of the ceiling material for a vehicle is formed with a vacuum insulation layer prepared in Example 1 of the present invention.
Figure 4 is a photograph showing the measurement result of the amount of deflection due to the warp of the ceiling material for a vehicle is formed with a vacuum insulation layer prepared in Example 1 of the present invention.
Figure 5 is a photograph showing the measurement result of the deflection amount due to the self load of the vehicle ceiling material manufactured through Comparative Example 1.
6 is a photograph showing a measurement result of the amount of deflection by the warp of the vehicle ceiling material manufactured through Comparative Example 1.

이하에서는 본 발명의 바람직한 실시예와 각 성분의 물성을 상세하게 설명하되, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 발명을 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 발명의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는다.
Hereinafter, the preferred embodiments of the present invention and the physical properties of each component will be described in detail, which is intended to explain in detail enough to be able to easily carry out the invention by those skilled in the art to which the present invention belongs, This does not mean that the technical spirit and scope of the present invention is limited.

본 발명에 따른 진공단열층이 형성된 차량용 천정재는 기재층(10), 전술한 기재층(10)의 일면에 적층되는 보강재층(20), 전술한 보강재층(20)이 형성된 기재층(10)의 양면에 적층되는 부직포층(30) 및 전술한 부직포층(30)의 일면에 형성되는 진공단열층(40)으로 이루어진다.
The vehicle ceiling material having the vacuum insulation layer according to the present invention may be formed of the base material layer 10, the reinforcement layer 20 laminated on one surface of the base material layer 10 described above, and the base material layer 10 having the reinforcement material layer 20 described above. The nonwoven fabric layer 30 is laminated on both sides and the vacuum insulation layer 40 formed on one surface of the nonwoven fabric layer 30 described above.

전술한 기재층(10)은 유리섬유 40 내지 60 중량부와 바인더 섬유 40 내지 60 중량부가 혼섬되어 이루어지는데, 전술한 유리섬유는 바인더 섬유와 혼섬되며, 직경이 10 내지 30㎛이고, 굵기가 50 내지 80mm인 E-Glass섬유가 이용된다.The substrate layer 10 is composed of 40 to 60 parts by weight of glass fibers and 40 to 60 parts by weight of binder fibers, wherein the glass fibers are mixed with binder fibers, have a diameter of 10 to 30 μm, and a thickness of 50 E-Glass fibers of from 80 mm are used.

전술한 것처럼 유리섬유의 혼섬을 통해 진공단열층이 형성된 차량용 천정재는 내열 및 내습에 대한 치수안정성과 기계적 물성이 향상된다.As described above, the vehicle ceiling material in which the vacuum insulation layer is formed through the blending of the glass fibers has improved dimensional stability and mechanical properties against heat and moisture resistance.

전술한 바인더섬유는 폴리프로필렌 섬유 또는 170 내지 200℃의 융점을 갖는 저융점 폴리에스터섬유로 이루어지는데, 융융된 상태에서 유리섬유 사이에 스며든 후에 냉각과정을 거치게 되면, 유리섬유 사이에서 경화되어 유리섬유를 결속하는 역할을 하며, 전술한 기재층(10)의 성형성을 향상시킨다.The above-mentioned binder fiber is made of polypropylene fiber or low melting polyester fiber having a melting point of 170 to 200 ° C .. When the binder fiber is soaked between glass fibers in the molten state and undergoes a cooling process, the binder fibers are cured between glass fibers. It serves to bind the fibers and improves the moldability of the substrate layer 10 described above.

이때, 전술한 바인더 섬유의 섬도는 3 내지 15 데니어이고, 길이는 50 내지 80mm이며, 권축(Crimp)이 부여된 것을 사용하는 것이 바람직하다.
At this time, the fineness of the above-mentioned binder fiber is 3-15 denier, length is 50-80 mm, and it is preferable to use the thing provided with crimp.

전술한 보강재층(20)은 전술한 기재층(10)의 일면에 적층되어 진공단열층이 형성된 차량용 천정재의 기계적 강도를 향상시키는 역할을 하는데, 30 내지 70㎛ 두께의 나일론필름(21) 양면에 내열 폴리올레핀계 접착필름(22)을 적층하여 이루어진다.The reinforcement layer 20 described above is laminated on one surface of the substrate layer 10 to serve to improve the mechanical strength of the vehicle ceiling material in which the vacuum insulation layer is formed, and heat resistant to both sides of the nylon film 21 having a thickness of 30 to 70 μm. It is made by laminating the polyolefin adhesive film 22.

전술한 나일론필름(21)은 진공단열층이 형성된 차량용 천정재를 제조할 때 전술한 기재층(10)을 형성하고 있는 유리섬유가 천정재의 외부로 돌출되는 것을 방지하고, 진공단열층이 형성된 차량용 천정재의 기계적 강도를 보강하는 역할을 한다.The above-described nylon film 21 prevents the glass fibers forming the base layer 10 from protruding out of the ceiling material when manufacturing the vehicle ceiling material having the vacuum insulation layer formed thereon, and the vehicle ceiling material having the vacuum insulation layer formed thereon. It serves to reinforce mechanical strength.

또한, 나일론필름(21) 양면에 적층되어 있는 내열 폴리올레핀계 접착필름(22)은 예열과정에서 용융되어 상기 기재층(10)과 나일론필름(21) 및 부직포층(30)과 나일론 필름(21)을 접착하는 역할을 한다.
In addition, the heat-resistant polyolefin adhesive film 22 laminated on both sides of the nylon film 21 is melted during the preheating process so that the base layer 10, the nylon film 21, the nonwoven fabric layer 30, and the nylon film 21. It serves to bond.

전술한 부직포층(30)은 전술한 보강재층(20)이 형성된 기재층(10)의 양면에 형성되며, 스펀본딩 및 니들펀칭에 의해 결합되는 폴리에스터 장섬유 부직포로 20 내지 50g/m2의 면밀도를 나타내며, 차량용 천정재의 외관품질을 개선하고, 열간 평판금형으로 차량용 천정재를 예열할때 열간 평판금형에 차량용 천정재가 달라붙는 것을 방지하는 역할을 하며, 냉각 성형금형으로 차량용 천정재를 이송할 때 천정재의 외부가 손상되는 것을 방지하는 역할을 한다.
The nonwoven fabric layer 30 is formed on both sides of the base layer 10 on which the aforementioned reinforcement layer 20 is formed, and is 20 to 50 g / m 2 of a polyester long fiber nonwoven fabric which is bonded by spunbonding and needle punching. It shows surface density, improves the appearance quality of the vehicle ceiling material, prevents the vehicle ceiling material from sticking to the hot plate mold when preheating the vehicle ceiling material with the hot plate mold, and transfers the vehicle ceiling material with the cooling molding mold. When the outside of the ceiling material serves to prevent damage.

전술한 진공단열층(40)은 전술한 부직포층(30)의 일면에 적층되며, 외부로부터 차량의 실내로 전달되는 열을 차단하는 역할을 하는데, 본 발명에 따른 진공단열층이 형성된 차량용 천정재를 차량에 형성할 때, 차량용 천정재의 형태안정성과 가공성 등을 고려하면서 단열성능이 유지되도록 5 내지 10 밀리미터의 두께를 갖는 것이 바람직하다.The above-described vacuum insulation layer 40 is laminated on one surface of the nonwoven fabric layer 30 described above, and serves to block heat transmitted from the outside to the interior of the vehicle. The vehicle ceiling material having the vacuum insulation layer according to the present invention is formed in a vehicle. When formed in the, it is preferable to have a thickness of 5 to 10 millimeters so that the thermal insulation performance is maintained while taking into account the shape stability and workability of the vehicle ceiling material.

더욱 상세하게는 전술한 진공단열층(40)은 심재(41) 및 상기 심재(41)를 감싸 수납하며, 가스 배리어성을 갖는 표피재(42)로 이루어지며, 전술한 심재(41)의 내부 진공도는 10-5 내지 10-2Torr인 것이 바람직하다.More specifically, the above-described vacuum insulation layer 40 is wrapped around the core material 41 and the core material 41 and made of a skin material 42 having a gas barrier property, and the internal vacuum degree of the core material 41 described above. Is preferably from 10 -5 to 10 -2 Torr.

전술한 심재(41)는 허니컴 구조이며, 금속 또는 유리에 에폭시 수지를 바인더로 혼합하여 이루어지는 것이 바람직하며, 전술한 바인더는 전술한 금속 또는 유리 성분의 바인더로 사용될 수 있는 성분이면 특별히 한정되지 않고 어떠한 것이든 사용가능하다.The core material 41 is a honeycomb structure, preferably formed by mixing an epoxy resin with a metal or glass as a binder, the binder is not particularly limited as long as it is a component that can be used as a binder of the metal or glass component described above. Anything is available.

또한, 전술한 심재(41)의 내부에는 가스 성분을 흡수하는 흡착제(43)가 개재되는 것이 바람직한데, 상기 흡착제(43)는 심재 내부에 가스를 흡착할 수 있는 성분이면 특별히 한정되지 않고 어떠한 것이든 사용가능하나, 활성탄, 실리카겔, 산화알루미늄, 분자체, 제올라이트, 산화칼슘, 산화바륨, 염화칼슘, 산화마그네슘, 염화마그네슘, 철, 아연, 바륨-리튬계 합금 및 지르코늄계 합금으로 이루어진 그룹으로부터 선택된 하나로 이루어지는 것이 바람직하다.In addition, it is preferable that an adsorbent 43 absorbing a gas component is interposed inside the core member 41 as described above. The adsorbent 43 is not particularly limited as long as it is a component capable of adsorbing gas into the core member. Any one can be used but selected from the group consisting of activated carbon, silica gel, aluminum oxide, molecular sieve, zeolite, calcium oxide, barium oxide, calcium chloride, magnesium oxide, magnesium chloride, iron, zinc, barium-lithium based alloy and zirconium based alloy It is preferable to make.

전술한 표피재(42)는 전술한 심재(41)를 감싸 수납하며, 가스베리어성을 갖는데, 이러한 표피재(42)로 전술한 심재(41)를 감싼 후에는 표피재(42)가 서로 맞닿는 표피재의 테투리 부분을 열융착 등의 방법으로 기밀 접착하여 공기가 차단되도록 형성한다.The skin 42 described above wraps around the core 41 and has gas barrier properties. After wrapping the core 41 with the skin 42, the skin 42 is in contact with each other. The rim part of the skin material is hermetically bonded by a method such as heat fusion, so that air is blocked.

또한, 전술한 표피재(42)는 알루미늄, 금, 은, 구리, 니켈, 코발트, 크롬 및 주석으로 이루어진 그룹으로부터 선택된 하나의 금속이 증착된 폴리올레핀으로 이루어지는데, 전술한 바와 같이 금속이 증착된 폴리올레핀으로 이루어진 표피재(42)를 사용하게 되면, 표피재(42)의 가스베리어성이 더욱 향상되어 진공단열층(40)의 진공상태가 오랜 기간 유지된다.In addition, the skin material 42 described above is made of a polyolefin deposited with a metal selected from the group consisting of aluminum, gold, silver, copper, nickel, cobalt, chromium, and tin. When the outer skin material 42 is formed of gas, the gas barrier property of the outer skin material 42 is further improved, so that the vacuum state of the vacuum insulation layer 40 is maintained for a long time.

이때, 상기 폴리올레핀은 폴리에틸렌 계열 또는 폴리프로필렌 계열로 이루어지는 것이 바람직하다.
In this case, the polyolefin is preferably made of polyethylene or polypropylene series.

이하에서는, 본 발명의 진공단열층이 형성된 차량용 천정재의 제조방법을 실시예를 들어 설명한다.
Hereinafter, the manufacturing method of the vehicle ceiling material in which the vacuum insulation layer of this invention was formed is given and demonstrated to an Example.

<실시예 1>&Lt; Example 1 >

직경이 12㎛이고, 길이가 80mm인 E-Glass 섬유 50 중량부와 길이가 64mm이고 섬도가 6데니어인 폴리프로필렌 섬유 50 중량부를 혼섬하고 카딩공정 및 니들펀칭 공정을 통해 면밀도가 700g/m2인 기재층을 형성하고, 기재층의 상부면에 40㎛ 두께를 갖는 나일론필름 양면에 20㎛ 두께의 내열 폴리올레핀계 접착필름을 적층하여 형성된 보강층을 적층하고, 보강층이 형성된 기재층의 양면에 면밀도가 50g/㎡인 스펀본드 폴리에스터 장섬유 부직포로 이루어진 부직포층을 적층하여 형성된 3.5㎜ 두께의 적층체를 열간 평판금형에서 예열한 후에, 예열된 적층체의 하부면에 유리와 에폭시 수지를 혼합하여 이루어진 심재 및 전술한 심재를 알루미늄이 증착된 폴리에틸렌으로 감싸 이루어진 3.8mm 두께의 진공단열층을 적층한 후에 예열 압착성형하여 7mm 두께의 진공단열층이 형성된 차량용 천정재를 제조하였다.
50 parts by weight of E-Glass fiber having a diameter of 12 μm and a length of 80 mm and 50 parts by weight of polypropylene fiber having a length of 64 mm and a fineness of 6 mm densities and a surface density of 700 g / m 2 through carding process and needle punching process. A base layer is formed, and a reinforcement layer formed by laminating a heat resistant polyolefin-based adhesive film having a thickness of 20 μm on both sides of a nylon film having a thickness of 40 μm on an upper surface of the base layer is laminated, and a surface density of 50 g is provided on both sides of the base layer on which the reinforcement layer is formed. Core plate made by mixing a glass and epoxy resin on the lower surface of the preheated laminate after preheating a 3.5 mm thick laminate formed by laminating a nonwoven fabric layer made of spunbond polyester long fiber nonwoven fabric having a thickness of And stacking the above-described core material with a 3.8 mm thick vacuum insulating layer made of polyethylene deposited with aluminum, followed by pre-press molding to vacuum insulation of 7 mm thick. It is formed to prepare a vehicle ceiling material.

<비교예 1>&Lt; Comparative Example 1 &

직경이 12㎛이고, 길이가 80mm인 E-Glass 섬유 50 중량부와 길이가 64mm이고 섬도가 6데니어인 폴리프로필렌 섬유 50 중량부를 혼섬하고 카딩공정 및 니들펀칭 공정을 통해 면밀도가 700g/m2인 기재층을 형성하고, 기재층의 상부면에 40㎛ 두께를 갖는 나일론필름 양면에 20㎛ 두께의 내열 폴리올레핀계 접착필름을 적층하여 형성된 보강층을 적층하고, 보강층이 형성된 기재층의 양면에 면밀도가 50g/㎡인 스펀본드 폴리에스터 장섬유 부직포로 이루어진 부직포층을 적층하여 형성된 적층체를 열간 평판금형에서 예열한 후에, 냉각 성형금형에서 압착성형하여 3.5mm 두께인 차량용 천정재를 제조하였다.
50 parts by weight of E-Glass fiber having a diameter of 12 μm and a length of 80 mm and 50 parts by weight of polypropylene fiber having a length of 64 mm and a fineness of 6 mm densities and a surface density of 700 g / m 2 through carding process and needle punching process. A base layer is formed, and a reinforcement layer formed by laminating a heat resistant polyolefin-based adhesive film having a thickness of 20 μm on both sides of a nylon film having a thickness of 40 μm on an upper surface of the base layer is laminated, and a surface density of 50 g is provided on both sides of the base layer on which the reinforcement layer is formed. A laminate formed by laminating a nonwoven fabric layer made of a spunbond polyester long fiber nonwoven fabric having a thickness of / m 2 was preheated in a hot plate mold, and then pressed in a cold mold to prepare a vehicle ceiling material having a thickness of 3.5 mm.

전술한 실시예 1을 통해 제조된 진공단열층이 형성된 차량용 천정재와 비교예 1을 통해 제조된 차량용 천정재의 단열효과를 측정하여 아래 표 1에 나타내었다.The thermal insulation effect of the vehicle ceiling material having the vacuum insulation layer manufactured through the above-described Example 1 and the vehicle ceiling material manufactured through Comparative Example 1 was measured and shown in Table 1 below.

(단, 하절기와 유사한 조건으로, 35℃인 태양광 조사 조건에서 6시간 동안 방치한 후에 천정재 가장 내측의 표면온도를 측정하여 나타내었다.)
(However, under the conditions similar to summer, after leaving for 6 hours at 35 ℃ solar irradiation conditions, the surface temperature of the innermost ceiling material was measured and shown.)

<표 1>TABLE 1

Figure 112012054306454-pat00001
Figure 112012054306454-pat00001

위에 표 1에 나타낸 것처럼, 본 발명의 실시예 1을 통해 제조된 진공단열층이 형성된 차량용 천정재는 비교예 1을 통해 제조된 차량용 천정재에 비해 표면온도가 현저하게 낮게 나타나 단열효과가 매우 우수한 것을 알 수 있다.As shown in Table 1 above, the vehicle ceiling material formed with a vacuum insulation layer manufactured in Example 1 of the present invention has a significantly lower surface temperature compared to the vehicle ceiling material prepared in Comparative Example 1 shows that the thermal insulation effect is very excellent. Can be.

또한, 실시예 1을 통해 제조된 진공단열층이 형성된 차량용 천정재를 35℃인 태양광 조사 조건에서 6시간 동안 방치한 후에 표면온도를 측정한 결과를 아래 도 2에 나타내었다.In addition, the result of measuring the surface temperature after leaving the vehicle ceiling material with a vacuum insulation layer prepared in Example 1 for 6 hours at 35 ℃ solar irradiation conditions is shown in Figure 2 below.

아래 도 2에 나타낸 것처럼, 진공단열층이 형성된 천정재 부분은 진공단열층이 형성되지 않은 부분에 비해 표면온도가 낮게 나타나는 것을 알 수 있다.As shown in FIG. 2 below, it can be seen that the ceiling material portion in which the vacuum insulation layer is formed has a lower surface temperature than the portion in which the vacuum insulation layer is not formed.

이러한 단열효과로 인해 차량의 공조기 가동횟수가 줄어들어 연비향상의 효과를 나타내며, 차량에 탑승하고 있는 승객이 느끼는 쾌적성도 향상된다.Due to the insulation effect, the number of operating the air conditioner of the vehicle is reduced, thereby improving fuel efficiency, and the comfort of passengers in the vehicle is also improved.

따라서, 본 발명에 의해 제조된 진공단열층이 형성된 차량용 천정재는 진공단열층이 형성되어 차량의 외부에서 유입되는 열에 대해 우수한 단열효과를 나타낸다.
Therefore, the vehicle ceiling material having the vacuum insulation layer manufactured according to the present invention has an excellent heat insulation effect against heat introduced from the outside of the vehicle by forming the vacuum insulation layer.

또한, 실시예 1을 통해 제조된 진공단열층이 형성된 차량용 천정재와 비교예 1을 통해 제조된 차량용 천정재의 자체하중에 의한 처짐 및 뒤틀림에 의한 처짐 현상을 측정하여 아래 표 3에 나타내었다.In addition, the sag due to the self-load and the sag due to the warp of the vehicle ceiling material having the vacuum insulation layer manufactured through Example 1 and the vehicle ceiling material manufactured through Comparative Example 1 were measured and shown in Table 3 below.

(단, 자체하중에 의한 처짐량과, 튀틀림에 의한 처짐량의 해석은 각 구성별 물성값을 기준으로 진행하였으며 해석에 사용된 물성값은 아래 표 2에 나타내었고, 실시예 1에서의 진공단열층의 적용비율은 천정재의 전체면적 대비 48%인 것을 기준으로 하였다.(However, the analysis of the amount of deflection by self-load and the amount of deflection by torsion was carried out based on the property values of each component. The property values used in the analysis are shown in Table 2 below. Was based on 48% of the total area of the ceiling.

또한, 자체하중에 의한 처짐량은 제품의 무게중심 아래에서 위쪽으로 고정한 상태에서 제품의 외곽부위가 제품의 자체하중에 의한 처짐량을 해석하여 가장 처짐량이 많은 곳의 치수를 확인하여 비교하였으며, 뒤틀림에 의한 처짐량은 제품의 양쪽 대각선 모서리를 고정한 상태에서 나머지 대각선 모서리 중에서 한쪽 끝만을 중력방향으로 1N의 힘을 부여하여 뒤틀 경우에 하중을 부여한 부분의 처짐량을 해석하고 비교하여 나타낸 것이다.)Also, the amount of deflection by self load was analyzed from the part where the outer part of the product was deflected by the product's own load while it was fixed upward from below the center of gravity of the product. Deflection amount is the result of analyzing and comparing the deflection amount of the load part when twisting by applying a force of 1N in the direction of gravity while only one end of the remaining diagonal edges is fixed while both diagonal edges of the product are fixed.)

또한, 실시예 1을 통해 제조된 진공단열층이 형성된 차량용 천정재의 자체하중에 의한 처짐량의 측정결과는 아래 도 3에 나타내었으며, 뒤틀림에 의한 처짐량은 아래 도 4에 나타내었다.In addition, the measurement results of the deflection amount due to the self-load of the vehicle ceiling material having the vacuum insulation layer formed through Example 1 is shown in Figure 3 below, the amount of deflection due to the distortion is shown in Figure 4 below.

또한, 비교예 1을 통해 제조된 차량용 천정재의 자체하중에 의한 처짐량은 아래 도 5에 나타내었으며, 뒤틀림에 의한 처짐량은 아래 도 6에 나타내었다.
In addition, the amount of deflection by the self load of the vehicle ceiling material manufactured through Comparative Example 1 is shown in Figure 5 below, the amount of deflection due to the distortion is shown in Figure 6 below.

<표 2><Table 2>

Figure 112012054306454-pat00002

Figure 112012054306454-pat00002

<표 3><Table 3>

Figure 112012054306454-pat00003
Figure 112012054306454-pat00003

위에 표 1 및 아래 도 3 내지 6에 나타낸 것처럼 본 발명에 따른 진공단열층이 형성된 처량용 천정재는 자체하중에 의한 처짐량과 튀틀림에 의한 처짐량이 비교예 1에 의해 제조된 차량용 천정재에 비해 월등하게 개선되는 것을 알 수 있다.
As shown in Table 1 above and Figures 3 to 6 below, the weighing ceiling material having a vacuum insulation layer according to the present invention has a much higher deflection amount due to its own load and the deflection amount due to torsion than the vehicle ceiling material manufactured by Comparative Example 1. It can be seen that the improvement.

10 ; 기재층
20 ; 보강재층
21 ; 나일론필름
22 ; 접착필름
30 ; 부직포층
40 ; 진공단열층
41 ; 심재
42 ; 표피재
43 ; 흡착제10; The substrate layer
20; Stiffener layer
21; Nylon film
22; Adhesive film
30; Nonwoven fabric layer
40; Vacuum insulation layer
41; Core material
42; Skin
43; absorbent

Claims (7)

기재층;
상기 기재층의 일면에 적층되는 보강재층;
상기 보강재층이 형성된 기재층의 양면에 적층되는 부직포층; 및
상기 부직포층의 일면에 형성되는 진공단열층;으로 이루어지며,
상기 진공단열층은 심재;및
상기 심재를 감싸 수납하며, 가스 배리어성을 갖는 표피재;로 이루어지는 것을 특징으로 하는 진공단열층이 형성된 차량용 천정재.
A base layer;
A reinforcing material layer laminated on one surface of the base layer;
A nonwoven fabric layer laminated on both sides of the base layer on which the reinforcing material layer is formed; And
Consists of a vacuum insulation layer formed on one surface of the nonwoven fabric layer,
The vacuum insulation layer is a core material; And
And a skin material wrapped around the core material and having a gas barrier property.
청구항 1에 있어서,
상기 기재층은 유리섬유 40 내지 60 중량부와 바인더섬유 40 내지 60 중량부로 이루어지는 것을 특징으로 하는 진공단열층이 형성된 차량용 천정재.
The method according to claim 1,
The base layer is a vehicle ceiling material with a vacuum insulation layer, characterized in that consisting of 40 to 60 parts by weight of glass fibers and 40 to 60 parts by weight of binder fibers.
청구항 1에 있어서,
상기 보강재층은 30 내지 70㎛ 두께를 갖는 나일론필름 양면에 내열 폴리올레핀계 접착필름을 적층하여 형성되는 것을 특징으로 하는 진공단열층이 형성된 차량용 천정재.
The method according to claim 1,
The reinforcing material layer is a vehicle ceiling material with a vacuum insulation layer, characterized in that formed by laminating a heat-resistant polyolefin-based adhesive film on both sides of a nylon film having a thickness of 30 to 70㎛.
삭제delete 청구항 1에 있어서,
상기 심재의 내부에는 가스 성분을 흡수하는 흡착제가 개재되는 것을 특징으로 하는 진공단열층이 형성된 차량용 천정재.
The method according to claim 1,
The ceiling material for a vehicle having a vacuum insulation layer, characterized in that the inside of the core material is adsorbent to absorb gas components.
청구항 1에 있어서,
상기 심재는 허니컴 구조이며, 금속 또는 유리에 에폭시 수지를 바인더로 혼합하여 이루어지는 것을 특징으로 하는 진공단열층이 형성된 차량용 천정재.
The method according to claim 1,
The core material has a honeycomb structure, and the ceiling material for a vehicle having a vacuum insulation layer, characterized in that the epoxy resin is mixed with a metal or glass as a binder.
청구항 1에 있어서,
상기 표피재는 알루미늄, 금, 은, 구리, 니켈, 코발트, 크롬 및 주석으로 이루어진 그룹으로부터 선택된 하나의 금속이 증착된 폴리올레핀으로 이루어지는 것을 특징으로 하는 진공단열층이 형성된 차량용 천정재.The method according to claim 1,
The skin material is a vehicle ceiling material with a vacuum insulation layer, characterized in that made of polyolefin deposited with a metal selected from the group consisting of aluminum, gold, silver, copper, nickel, cobalt, chromium and tin.
KR1020120074039A 2012-07-06 2012-07-06 Headliner for vehicle using vacuum insulation panel KR101357011B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003335185A (en) 2002-05-17 2003-11-25 Matsushita Refrig Co Ltd Automobile
KR20060090607A (en) * 2005-02-09 2006-08-14 가부시끼가이샤 히다치 세이사꾸쇼 Thermal insulation and sound absorbing structure and vehicle structure using the same
JP2007283989A (en) * 2006-04-20 2007-11-01 Hitachi Ltd Automobile using vacuum heat insulation material
KR100951958B1 (en) * 2008-12-15 2010-04-09 엔브이에이치코리아(주) A lightweight headliner for vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003335185A (en) 2002-05-17 2003-11-25 Matsushita Refrig Co Ltd Automobile
KR20060090607A (en) * 2005-02-09 2006-08-14 가부시끼가이샤 히다치 세이사꾸쇼 Thermal insulation and sound absorbing structure and vehicle structure using the same
JP2007283989A (en) * 2006-04-20 2007-11-01 Hitachi Ltd Automobile using vacuum heat insulation material
KR100951958B1 (en) * 2008-12-15 2010-04-09 엔브이에이치코리아(주) A lightweight headliner for vehicle

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