KR102064339B1 - Under cover for vehicle including pc-abs film and manufacturing method thereof - Google Patents

Under cover for vehicle including pc-abs film and manufacturing method thereof Download PDF

Info

Publication number
KR102064339B1
KR102064339B1 KR1020170182132A KR20170182132A KR102064339B1 KR 102064339 B1 KR102064339 B1 KR 102064339B1 KR 1020170182132 A KR1020170182132 A KR 1020170182132A KR 20170182132 A KR20170182132 A KR 20170182132A KR 102064339 B1 KR102064339 B1 KR 102064339B1
Authority
KR
South Korea
Prior art keywords
film
abs
nonwoven fabric
undercover
abs film
Prior art date
Application number
KR1020170182132A
Other languages
Korean (ko)
Other versions
KR20190079985A (en
Inventor
황인용
Original Assignee
한화글로벌에셋 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한화글로벌에셋 주식회사 filed Critical 한화글로벌에셋 주식회사
Priority to KR1020170182132A priority Critical patent/KR102064339B1/en
Publication of KR20190079985A publication Critical patent/KR20190079985A/en
Application granted granted Critical
Publication of KR102064339B1 publication Critical patent/KR102064339B1/en

Links

Images

Classifications

    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • 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
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin 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
    • 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
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/04—Punching, slitting or perforating
    • 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
    • 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
    • B60R13/0838—Insulating elements, e.g. for sound insulation for engine compartments
    • 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
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/09—Reducing noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Laminated Bodies (AREA)

Abstract

본 발명은 PC-ABS 필름을 포함하는 차량용 언더커버 및 그 제조방법에 관한 발명으로, 코어의 양면에 PC-ABS 필름이 포함된 것을 특징으로 한다.
이러한 특징으로 인해, 접착 필름을 별도로 삽입할 필요가 없어 언더커버의 중량 및 원가를 절감할 수 있고, 흡음성능을 개선할 수 있다.The present invention relates to a vehicle undercover comprising a PC-ABS film and a method for manufacturing the same, characterized in that the PC-ABS film is included on both sides of the core.
Due to this feature, it is not necessary to insert the adhesive film separately, it is possible to reduce the weight and cost of the undercover, it is possible to improve the sound absorption performance.

Description

PC-ABS 필름을 포함하는 차량용 언더커버 및 그 제조방법{UNDER COVER FOR VEHICLE INCLUDING PC-ABS FILM AND MANUFACTURING METHOD THEREOF}Undercover for vehicle including PC-ABS film and manufacturing method thereof {UNDER COVER FOR VEHICLE INCLUDING PC-ABS FILM AND MANUFACTURING METHOD THEREOF}

본 발명은 PC-ABS 필름을 포함하는 차량용 언더커버 및 그 제조방법에 관한 발명으로, 코어의 양면에 PC-ABS 필름이 포함된 것을 특징으로 한다. 이러한 특징으로 인해, 접착 필름을 별도로 삽입할 필요가 없어 언더커버의 중량 및 원가를 절감할 수 있고, 흡음성능을 개선할 수 있다.The present invention relates to a vehicle undercover comprising a PC-ABS film and a method for manufacturing the same, characterized in that the PC-ABS film is included on both sides of the core. Due to this feature, it is not necessary to insert the adhesive film separately, it is possible to reduce the weight and cost of the undercover, it is possible to improve the sound absorption performance.

일반적으로 차량의 언더커버는 엔진의 하부는 물론 차체의 하부에 구비한 각종 구성부품을 보호하고, 차량의 주행 시 공기와의 저항을 감소시키며, 노면에서의 비산물을 차단시킬 수 있게 하고, 차량의 제품신뢰도를 높일 수 있도록 한 것이다.In general, the undercover of the vehicle protects various components provided in the lower part of the engine as well as the lower part of the engine, reduces the resistance to air when the vehicle is driven, and blocks the scattering of the road surface. To increase the reliability of the product.

이러한 언더커버는 차량의 공력성능 향상 및 엔진룸 내부 부속품의 보호를 위하여 프론트 범퍼 하측 크로스멤버에 통상 장착하고 있으며, 이를 통해 차량 주행 중 기타 이물질이나 지상의 돌출물로부터 엔진 및 새시부품을 보호하는 동시에, 차량 저부의 공기 흐름을 원활하게 한다.These undercovers are usually mounted on the crossmember under the front bumper to improve the aerodynamic performance of the vehicle and to protect the accessories inside the engine compartment.This undercover protects the engine and chassis parts from other foreign objects or protrusions on the ground while driving the vehicle. Smooth air flow to the bottom of the vehicle.

도 1은 종래의 차량용 언더커버의 단면도를 도시한 것이다.1 is a cross-sectional view of a conventional undercover for a vehicle.

종래의 차량용 언더커버는 폴리프로필렌(Poly Propylene, PP) 수지에 글래스 파이버(Glass Fiber, GF)가 함침된 코어(100)를 기반으로, 엔진에서 지면 방향으로, 부직포(200), 폴리프로필렌(PP) 수지에 글래스 파이버(GF)가 함침된 코어(100)(이하, PP+GF CORE라 한다). PP 필름(300) 및 부직포(200)가 순차적으로 결합되었다.Conventional undercover for the vehicle is based on the core 100 impregnated with polypropylene (Poly Propylene, PP) glass fiber (Glass Fiber, GF), in the direction from the engine to the ground, nonwoven fabric 200, polypropylene (PP) ) The core 100 impregnated with the glass fiber (GF) in the resin (hereinafter referred to as PP + GF CORE). The PP film 300 and the nonwoven fabric 200 were sequentially bonded.

폴리프로필렌(Poly Propylene, PP) 수지에 글래스 파이버(Glass Fiber, GF)가 함침된 것은 소위 'LWRT'라 지칭되며, 저중량 강화 열가소성 플라스틱이라고도 지칭된다.The impregnation of polypropylene (PP) resin with glass fiber (GF) is called 'LWRT' and is also referred to as low weight reinforced thermoplastic.

필름층은 LWRT에 가해지는 외부 충격 및 오염 물질을 막을 수 있는 배리어(Barrier) 역할을 하게 된다.The film layer acts as a barrier to prevent external impact and contaminants applied to the LWRT.

이때, PP 필름(300)을 사용하는 이유는 PP+GF CORE(100)와 부직포(200)를 연결하는 과정에서, PP+GF CORE(100) 또한 PP를 포함하고 있기 때문에, 별도의 접착제 없이 쉽게 연결할 수 있기 때문이다.At this time, the reason why the PP film 300 is used in the process of connecting the PP + GF CORE (100) and the nonwoven fabric 200, because the PP + GF CORE (100) also includes a PP, easily without a separate adhesive Because you can connect.

그러나, PP 필름(300)은 기계적 물성이 기타 고가의 필름에 비해 낮은 바, 엔진을 보호하기 위해 PP+GF CORE(100)의 면밀도(gsm)를 높일 수 밖에 없었다. 이로 인해, 제품 중량이 과다해져 연비가 떨어지는 문제점이 있었다.However, since the PP film 300 has lower mechanical properties than other expensive films, the PP film 300 has to increase the surface density (gsm) of the PP + GF CORE (100) to protect the engine. For this reason, the product weight is excessive, there was a problem that the fuel economy falls.

이를 개선하기 위해, PP+GF CORE(100)의 면밀도를 낮추고, PC(Poly Carbonate) 필름(500)을 포함하는 언더커버가 개발되었다.In order to improve this, a lower cover density of PP + GF CORE (100) and an undercover including a polycarbonate film (PC) 500 have been developed.

PC 필름은, 내충격성, 내열성, 내후성, 투명성 등의 특징이 있고, 강화 유리의 약 150배 이상의 충격도를 지니고 있어 유연성 및 가공성이 우수한 장점이 있어, PP 필름(300)보다 기계적 물성이 개선되는 장점이 있다.PC film has characteristics such as impact resistance, heat resistance, weather resistance, transparency, and has an impact degree of about 150 times or more than that of tempered glass, which is advantageous in terms of flexibility and workability, thereby improving mechanical properties than PP film 300. There is an advantage.

도 2는 종래의 개선된 언더커버의 단면도이다.2 is a cross-sectional view of a conventional improved undercover.

다만, PC 필름(500)은 PP 필름(300)의 고유의 접착성을 지니고 있지 않은 문제점이 있다. 따라서, PP 필름(300)을 PC 필름(500)으로 대체하려면, PC 필름(500)의 양면에 배치되는 부직포(200) 및 PP+GF CORE(100)와의 접착을 위한 접착 필름(400)이 별도로 요구되는 문제점이 있었다.However, the PC film 500 does not have the inherent adhesiveness of the PP film 300. Therefore, in order to replace the PP film 300 with the PC film 500, the non-woven fabric 200 and the adhesive film 400 for adhesion with the PP + GF CORE (100) disposed on both sides of the PC film 500 separately There was a problem required.

본 발명은 PC-ABS 필름을 포함하는 차량용 언더커버 및 그 제조방법에 관한 발명으로, 코어의 양면에 PC-ABS 필름이 포함된 것을 특징으로 한다. 이러한 특징으로 인해, 접착 필름을 별도로 삽입할 필요가 없어 언더커버의 중량 및 원가를 절감할 수 있고, 흡음성능을 개선할 수 있다.The present invention relates to a vehicle undercover comprising a PC-ABS film and a method for manufacturing the same, characterized in that the PC-ABS film is included on both sides of the core. Due to this feature, it is not necessary to insert the adhesive film separately, it is possible to reduce the weight and cost of the undercover, it is possible to improve the sound absorption performance.

이와 같은 목적을 달성하기 위해 본 발명에 따른 PC-ABS 필름을 포함하는 차량용 언더커버는 부직포, PC-ABS(Poly Carbonate-Acrylonitrile Butadiene Styrene) 필름, 폴리프로필렌(PP) 수지에 글래스 파이버(GF)가 함침된 LWRT 소재로 구성된 코어, PC-ABS 필름 및 부직포가 엔진에서 지면방향으로 순차적으로 적층된 것을 특징으로 한다.In order to achieve the above object, the undercover for a vehicle including the PC-ABS film according to the present invention includes a nonwoven fabric, a PC-ABS (Poly Carbonate-Acrylonitrile Butadiene Styrene) film, and a polypropylene (PP) resin. A core, a PC-ABS film, and a nonwoven fabric made of impregnated LWRT materials are sequentially stacked in the engine in the ground direction.

또한, 본 발명에 따른 PC-ABS 필름을 포함하는 차량용 언더커버의 PC-ABS 필름과 부직포가 열판합지공정에서 접착되는 것을 특징으로 한다.In addition, the PC-ABS film and the nonwoven fabric of the vehicle undercover including the PC-ABS film according to the present invention is characterized in that the bonding in the hot lamination process.

또한, 본 발명에 따른 PC-ABS 필름을 포함하는 차량용 언더커버의 부직포는 PET 소재인 것을 특징으로 한다.In addition, the nonwoven fabric of the vehicle undercover comprising a PC-ABS film according to the invention is characterized in that the PET material.

또한, 본 발명에 따른 PC-ABS 필름을 포함하는 차량용 언더커버의 PC-ABS 필름의 두께는 0.12mm 내지 0.17mm인 것을 특징으로 한다.In addition, the thickness of the PC-ABS film of the vehicle undercover including the PC-ABS film according to the invention is characterized in that the 0.12mm to 0.17mm.

또한, 본 발명에 따른 PC-ABS 필름을 포함하는 차량용 언더커버의 제조방법은 폴리프로필렌(PP) 수지에 글래스 파이버(GF)가 함침된 LWRT 소재로 구성된 코어의 양면에 PC-ABS(Poly Carbonate-Acrylonitrile Butadiene Styrene) 필름을 접착하여 시트층을 제작하는 단계, 시트층의 양면에 부직포를 덧대고, 각각의 부직포의 표면 근방에 열판을 인접시키는 단계 및 열판을 상기 시트층의 중심 방향으로 가압하는 단계를 포함한다.In addition, the manufacturing method of the vehicle undercover comprising a PC-ABS film according to the present invention is a poly-carbonate-PCB-ABS (Poly Carbonate-) on both sides of the core made of LWRT material impregnated with polypropylene (PP) glass fiber (GF) Acrylonitrile Butadiene Styrene) bonding the film to produce a sheet layer, the non-woven fabric on both sides of the sheet layer, the step of adjoining the hot plate near the surface of each non-woven fabric and pressing the hot plate in the direction of the center of the sheet layer It includes.

또한, 본 발명에 따른 PC-ABS 필름을 포함하는 차량용 언더커버의 제조방법의 부직포는 PET 소재인 것을 특징으로 한다.In addition, the nonwoven fabric of the method for manufacturing a vehicle undercover comprising a PC-ABS film according to the invention is characterized in that the PET material.

또한, 본 발명에 따른 PC-ABS 필름을 포함하는 차량용 언더커버의 제조방법의 PC-ABS 필름의 두께는 0.12mm 내지 0.17mm인 것을 특징으로 한다.In addition, the thickness of the PC-ABS film of the method for manufacturing a vehicle undercover comprising a PC-ABS film according to the invention is characterized in that the 0.12mm to 0.17mm.

또한, 본 발명에 따른 PC-ABS 필름을 포함하는 차량용 언더커버의 제조방법의 부직포, 시트층 및 부직포로 이루어진 층 전체에 열을 가하는 단계를 더 포함한다.In addition, the method of manufacturing a vehicle undercover including a PC-ABS film according to the present invention further comprises the step of applying heat to the entire layer consisting of a nonwoven fabric, a sheet layer and a nonwoven fabric.

또한, 본 발명에 따른 PC-ABS 필름을 포함하는 차량용 언더커버의 제조방법은 트리밍하여 원하는 언더커버 형상을 제조하는 단계를 더 포함한다.In addition, the method for manufacturing a vehicle undercover comprising a PC-ABS film according to the present invention further comprises the step of producing a desired undercover shape by trimming.

또한, 본 발명에 따른 PC-ABS 필름을 포함하는 차량용 언더커버의 제조방법은 피어싱을 통해 홀을 형성하는 단계를 더 포함한다.In addition, the method for manufacturing a vehicle undercover comprising a PC-ABS film according to the present invention further comprises the step of forming a hole through piercing.

본 발명으로 인해, 종래의 PC 필름을 PC-ABS 필름으로 대체하여도 기계적 물성이 유사하여 CORE의 면밀도를 유지할 수 있고, 이와 동시에 접착 필름을 삽입할 필요가 없어 중량 및 원가를 절감할 수 있는 장점이 있다.Due to the present invention, even if a conventional PC film is replaced with a PC-ABS film, mechanical properties are similar to maintain the surface density of CORE, and at the same time, there is no need to insert an adhesive film, thereby reducing weight and cost. There is this.

또한, 흡음성능이 개선되어 언더커버 고유의 효과를 증대시킬 수 있는 장점이 있다.In addition, the sound absorption performance is improved, there is an advantage that can increase the inherent effects of the undercover.

도 1은 종래의 차량용 언더커버의 단면도를 도시한 것이다.
도 2는 종래의 개선된 언더커버의 단면도이다.
도 3은 본 발명에 따른 PC-ABS 필름을 포함하는 차량용 언더커버의 단면도이다.
도 4는 알파캐빈법에 따른 실험결과 그래프이다.
도 5는 본 발명에 따른 PC-ABS 필름의 제조방법의 순서도이다.1 is a cross-sectional view of a conventional undercover for a vehicle.
2 is a cross-sectional view of a conventional improved undercover.
3 is a cross-sectional view of the undercover for a vehicle including a PC-ABS film according to the present invention.
Figure 4 is a graph of the experimental results according to the alpha cabin method.
5 is a flowchart of a method of manufacturing a PC-ABS film according to the present invention.

본 발명은 다양한 변환을 가할 수 있고 여러 가지 실시예를 가질 수 있는 바, 특정 실시예들을 도면에 예시하고 상세한 설명에 상세하게 설명하고자 한다. 본 발명의 효과 및 특징, 그리고 그것들을 달성하는 방법은 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 다양한 형태로 구현될 수 있다. 이하의 실시예에서, 제1, 제2 등의 용어는 한정적인 의미가 아니라 하나의 구성 요소를 다른 구성 요소와 구별하는 목적으로 사용되었다. 또한, 단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함한다. 또한, 포함하다 또는 가지다 등의 용어는 명세서상에 기재된 특징, 또는 구성요소가 존재함을 의미하는 것이고, 하나 이상의 다른 특징들 또는 구성요소가 부가될 가능성을 미리 배제하는 것은 아니다. 또한, 도면에서는 설명의 편의를 위하여 구성 요소들이 그 크기가 과장 또는 축소될 수 있다. 예컨대, 도면에서 나타난 각 구성의 크기 및 두께는 설명의 편의를 위해 임의로 나타내었으므로, 본 발명이 반드시 도시된 바에 한정되지 않는다.As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. Effects and features of the present invention, and methods of achieving them will be apparent with reference to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various forms. In the following embodiments, the terms first, second, etc. are used for the purpose of distinguishing one component from other components rather than a restrictive meaning. Also, the singular forms “a”, “an” and “the” include plural forms unless the context clearly indicates otherwise. In addition, the terms including or have means that the features or components described in the specification are present, and does not preclude the possibility of adding one or more other features or components. In addition, in the drawings, components may be exaggerated or reduced in size for convenience of description. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, and thus the present invention is not necessarily limited to the illustrated.

이하, 첨부된 도면을 참조하여 본 발명의 실시예들을 상세히 설명하기로 하며, 도면을 참조하여 설명할 때 동일하거나 대응하는 구성 요소는 동일한 도면부호를 부여하고 이에 대한 중복되는 설명은 생략하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same or corresponding components will be denoted by the same reference numerals, and redundant description thereof will be omitted. .

도 3은 본 발명에 따른 PC-ABS 필름을 포함하는 차량용 언더커버의 단면도이다. 이하 도 3을 참조하여, 본 발명에 따른 PC-ABS 필름을 포함하는 차량용 언더커버의 구성 및 이에 따른 효과를 살핀다.3 is a cross-sectional view of the undercover for a vehicle including a PC-ABS film according to the present invention. Hereinafter, referring to FIG. 3, the configuration of the undercover for a vehicle including the PC-ABS film according to the present invention and the effects thereof will be examined.

본 발명에 따른 PC-ABS 필름은 엔진에서 지면 방향으로, 부직포(200), PC-ABS 필름(600), PP+GF CORE(100), PC-ABS 필름(600) 및 부직포(200)가 순차적으로 적층된 구조인 것이 바람직하다.PC-ABS film according to the present invention in the direction of the ground in the engine, the nonwoven fabric 200, PC-ABS film 600, PP + GF CORE (100), PC-ABS film 600 and the nonwoven fabric 200 sequentially It is preferable that it is a laminated structure.

부직포(200)는 일반적인 PET(Polyethylene terephthalate) 재질인 것이 바람직하다. 부직포(200)에 사용되는 소재로, 차량 언더커버에서 난연성 재질로도 선택될 수 있게 된다.Nonwoven fabric 200 is preferably a general polyethylene terephthalate (PET) material. As a material used for the nonwoven fabric 200, it may be selected as a flame retardant material in the vehicle undercover.

또한, PP+GF CORE(100)에 관한 것은 전술한 바, 중복된 설명을 방지하기 위해 생략한다.In addition, as for the PP + GF CORE (100) described above, it will be omitted to avoid duplicate description.

PC-ABS 필름(600)은 PC-ABS 소재로 제도된 필름이다. PC-ABS의 정식 명칭은 ' PC-ABS Alloy'로, PC(Poly Carbonate)의 우수한 기계적 특성에 ABS(Acrylonitrile Butadiene Styrene)의 우수한 가공성이 결합된 소재이다.The PC-ABS film 600 is a film drawn from PC-ABS material. The official name of PC-ABS is 'PC-ABS Alloy', which combines the excellent mechanical properties of PC (Poly Carbonate) with the excellent processability of ABS (Acrylonitrile Butadiene Styrene).

PC-ABS는 가공성이 높아 사출 성형 공법을 적용한 제품을 생산할 수 있으며, 높은 기계적 물성으로 고충격, 고강도 제품 생산에 이용된다.PC-ABS has high processability and can produce products using injection molding process. High mechanical properties are used to produce high impact and high strength products.

PC-ABS 필름(600)의 기계적 물성은 종래의 PC 필름(500)과 거의 유사하다. 이는 공지된 기술인 바, 상세한 설명은 생략하도록 한다.The mechanical properties of the PC-ABS film 600 are almost similar to those of the conventional PC film 500. Since this is a known technique, detailed description thereof will be omitted.

따라서, PC-ABS 필름(600)은, 종래의 PC 필름(500)이 지니는 배리어 기능을 거의 그대로 유지할 수 있는 장점이 있다.Therefore, the PC-ABS film 600 has an advantage of maintaining the barrier function of the conventional PC film 500 as it is.

이때, 종래의 PC 필름(500)과 달리, PC-ABS 필름(600)은 부직포(200) 또는 PP+GF CORE(100)와 접착되는 성질을 지니고 있다. 특히, 열이 가해졌을 때, PC-ABS 필름(600)은 부직포(200) 또는 PP+GF CORE(100)와 접착된다.At this time, unlike the conventional PC film 500, the PC-ABS film 600 has a property of being bonded to the nonwoven fabric 200 or PP + GF CORE (100). In particular, when heat is applied, the PC-ABS film 600 is bonded with the nonwoven fabric 200 or PP + GF CORE 100.

이는 ABS 소재가 PET 및 GF와 열이 가해졌을 때 접착되는 성질이 존재하기 때문이다. 따라서, PET 소재의 부직포(200)와 GF를 포함하는 PP+GF CORE(100)와 접착이 가능하게 된다.This is because ABS material adheres to PET and GF when heat is applied. Therefore, it is possible to bond with the PP + GF CORE (100) including the non-woven fabric 200 and GF of the PET material.

따라서, 본 발명에 따른 PC-ABS 필름(600)이 포함됨으로 인해, 종래의 PC 필름(500) 적층 구조와는 달리 별도의 접착 필름(400)을 삽입하지 않아도 언더커버 적층 구조가 완성될 수 있는 장점이 있다.Therefore, since the PC-ABS film 600 according to the present invention is included, unlike the conventional PC film 500 laminated structure, the undercover laminated structure may be completed without inserting a separate adhesive film 400. There is an advantage.

또한, PC-ABS 필름(600)은 PC 필름(500)에 비해 흡음성능이 증대되는 장점이 있다. 따라서, PC-ABS 필름(600)으로 인해, 언더커버에서 필수적으로 요구되는 흡음성능이 향상되는 장점이 있다.In addition, the PC-ABS film 600 has an advantage that the sound absorption performance is increased compared to the PC film 500. Therefore, due to the PC-ABS film 600, there is an advantage that the sound absorbing performance required in the undercover is improved.

이를 증명하기 위해 알파캐빈법을 통해 PC 필름(500)이 포함된 언더커버와 PC-ABS 필름(600)의 흡음성능을 테스트하였다.In order to prove this, the sound absorption performance of the undercover including the PC film 500 and the PC-ABS film 600 was tested by the alpha cabin method.

알파캐빈법(간이 잔향실법)은, 총 3개의 스피커를 이용하여 저주파(400Hz)-고주파(10000Hz) 사이의 15 단계의 음을 발생시킨 후, 마이크로폰을 이용하여 시편의 흡음성능을 측정한 것이다.The alpha cabin method (simple reverberation chamber method) generates 15 steps of sound between low frequency (400 Hz) and high frequency (10000 Hz) using a total of three speakers, and then measures the sound absorption performance of the specimen using a microphone.

도 4는 알파캐빈법에 따른 실험결과 그래프이다. 그래프를 기준으로, 가로축은 진동수이며, 세로축은 흡수율을 나타낸 것이다.Figure 4 is a graph of the experimental results according to the alpha cabin method. Based on the graph, the horizontal axis represents the frequency and the vertical axis represents the absorption rate.

주황색 선은 종래의 PC 필름(500)을 포함하는 언더커버이고, 파란색 선은 본 발명에 따른 PC-ABS 필름(600)을 포함하는 언더커버이다.The orange line is an undercover comprising a conventional PC film 500, and the blue line is an undercover comprising a PC-ABS film 600 according to the present invention.

도 4를 참조하면, 실험 결과 저주파(400Hz) 및 고주파(10000Hz)에서는 종래의 PC 필름(500)을 포함하는 언더커버와 본 발명에 따른 PC-ABS 필름(600)을 포함하는 흡음성능의 큰 차이점이 없다.Referring to Figure 4, the experimental results in the low frequency (400Hz) and high frequency (10000Hz) at the large difference between the sound absorbing performance including the undercover including the conventional PC film 500 and the PC-ABS film 600 according to the present invention There is no

그러나, 저주파와 고주파 사이의 대역에는 본 발명에 따른 PC-ABS 필름(600)을 포함하는 언더커버의 흡음성능지수가 더 높다는 것을 확인할 수 있다.However, it can be seen that the sound absorption performance index of the undercover including the PC-ABS film 600 according to the present invention is higher in the band between the low frequency and the high frequency.

저주파와 고주파 사이의 음의 흡음 성능이 높다는 것은, 일반적인 차량의 외부 소리(S)의 흡음 성능이 높다는 것과 매칭시킬 수 있다.The high sound absorption performance between low frequency and high frequency can be matched with the high sound absorption performance of the external sound S of a general vehicle.

따라서, PC-ABS 필름(600)을 포함하는 언더커버는 PC 필름(500)을 포함하는 언더커버에 비해서 흡음성능이 개선된다는 것을 확인할 수 있다.Therefore, it can be seen that the undercover including the PC-ABS film 600 has improved sound absorption performance compared to the undercover including the PC film 500.

이때, PC-ABS 필름(600)의 두께는 0.12mm 내지 0.17mm인 것이 바람직하다. 0.12mm 내지 0.17mm의 범위 내에서 PC-ABS 필름(600)의 두께가 선택되었을 때, 흡음성능이 최대화 된다.At this time, the thickness of the PC-ABS film 600 is preferably 0.12mm to 0.17mm. When the thickness of the PC-ABS film 600 is selected within the range of 0.12 mm to 0.17 mm, the sound absorption performance is maximized.

이를 증명하기 위해 실험예 1을 살핀다.Examine Experimental Example 1 to prove this.

(실험예 1)Experimental Example 1

1.PC-ABS 필름(600)의 두께를 0.15mm로 한 후, 알파캐빈법을 통해 2000Hz일 때의 Absorption Coefficient를 측정한다.1. After making the thickness of the PC-ABS film 600 0.15 mm, the Absorption Coefficient at 2000 Hz is measured by alpha-cabin method.

2.2000Hz일 때의 Absorption Coefficient는 0.62가 나왔다.Absorption Coefficient at 2.2000Hz was 0.62.

3.PC-ABS 필름(600)의 두께를 0.05mm 내지 0.2mm 범위로, 0.01mm 간격으로 두께를 달리하여 알파캐빈법을 통해 2000Hz일 때의 Absorption Coefficient를 측정한다.3. The thickness of the PC-ABS film 600 is 0.05mm to 0.2mm, the thickness is varied at 0.01mm intervals to measure the Absorption Coefficient at 2000Hz through the alpha cabin method.

4.PC-ABS 필름(600)의 두께가 0.15mm 일 때의 Absorption Coefficient를 기준값 '10'으로 하여, 0.05mm 내지 0.2mm 범위의 실험 결과에 따른 Absorption Coefficient를 상대적 지수로 환산하여 비교한다.4. The Absorption Coefficient when the thickness of the PC-ABS film 600 is 0.15 mm is set as the reference value '10', and the Absorption Coefficient according to the experimental results in the range of 0.05 mm to 0.2 mm is converted into a relative index and compared.

실험 결과는 하기 표 1과 같다.The experimental results are shown in Table 1 below.

두께(mm)Thickness (mm) 상대지수Relative index 0.050.05 5.925.92 0.060.06 6.156.15 0.070.07 6.446.44 0.080.08 6.586.58 0.090.09 7.187.18 0.100.10 7.277.27 0.110.11 7.567.56 0.120.12 9.129.12 0.130.13 9.189.18 0.140.14 9.859.85 0.150.15 1010 0.160.16 10.8210.82 0.170.17 10.8810.88 0.180.18 8.238.23 0.190.19 8.18.1 0.200.20 7.257.25

두께가 0.12mm 미만인 경우의 상대지수는 7.56으로서, 0.12mm일 때의 상대지수(9.12)보다 급격히 낮아지는 것을 확인할 수 있다. 이는, PC-ABS 필름(600)의 두께가 상기 범위 미만인 경우 접착 성능 저하로 전체적인 흡음성이 떨어지기 때문이다.When the thickness is less than 0.12 mm, the relative index is 7.56, which is sharply lower than the relative index (9.12) when the thickness is 0.12 mm. This is because, when the thickness of the PC-ABS film 600 is less than the above range, the overall sound absorption is deteriorated due to the decrease in adhesion performance.

반면, 두께가 0.17mm를 초과하는 경우의 상대지수는 8.23으로서, 0.17mm일 때의 상대지수(10.88)보다 급격히 낮아지는 것을 확인할 수 있다. 이는, PC-ABS 필름(600)의 두께가 너무 두꺼워지면, 파동 상쇄효과가 저하되기 때문이다.On the other hand, the relative index when the thickness exceeds 0.17mm is 8.23, it can be seen that it is sharply lower than the relative index (10.88) when 0.17mm. This is because, when the thickness of the PC-ABS film 600 becomes too thick, the wave canceling effect is lowered.

따라서, 본 발명에 따른 PC-ABS 필름(600)의 두께는 0.12mm 내지 0.17mm인 것이 바람직하고, 위 범위에서 최적의 흡음성능을 도출할 수 있다.Therefore, the thickness of the PC-ABS film 600 according to the present invention is preferably 0.12mm to 0.17mm, it is possible to derive the optimum sound absorption performance in the above range.

도 5는 본 발명에 따른 PC-ABS 필름의 제조방법의 순서도이다. 이하 도 5를 참조하여, 본 발명에 따른 PC-ABS 필름의 제조방법을 순차적으로 살핀다.5 is a flowchart of a method of manufacturing a PC-ABS film according to the present invention. Hereinafter, referring to FIG. 5, the manufacturing method of the PC-ABS film according to the present invention will be sequentially examined.

먼저, PP+GF CORE(100)의 양면에 PC-ABS 필름(600)을 접착하여 시트층을 제작한다(S100). 이때, 열을 가하여 접착할 수 있다.First, by adhering the PC-ABS film 600 on both sides of the PP + GF CORE (100) to produce a sheet layer (S100). At this time, it may be applied by applying heat.

이후, 시트층의 양면에 부직포(100)를 덧대고, 각각의 부직포의 표면 근방에 열판을 인접시킨다(S101). 열판은 미도시된 이동 가능한 지그에 결합되는 것이 바람직하나, 반드시 이러한 지그에 국한되는 것은 아니다.Thereafter, the nonwoven fabric 100 is padded on both sides of the sheet layer, and the hot plate is adjacent to the surface of each nonwoven fabric (S101). The hot plate is preferably coupled to a movable jig, not shown, but is not necessarily limited to this jig.

이후, 열판을 시트층의 중심 방향으로 가압한다(S102). 이로 인해, 부직포(200)와 시트층이 결합되게 된다. 이러한 공정을 '열판합지공정'이라고 지칭한다.Thereafter, the hot plate is pressed in the direction of the center of the sheet layer (S102). As a result, the nonwoven fabric 200 and the sheet layer are bonded. This process is referred to as a 'hot lamination process'.

이후, 합지된 층을 오븐에 넣어 열을 가하고(S103), 원하는 언더커버 형상이 제조되도록 트리밍(S104)한다. 마지막으로 결합 홀을 형성하기 위해 피어싱(S105)하는 과정을 거치게 된다.Thereafter, the laminated layer is put in an oven and heated (S103), and trimmed to produce a desired undercover shape (S104). Finally, the process of piercing (S105) to form a coupling hole.

설명한 본 발명의 상세한 설명에서는 본 발명의 바람직한 실시 예를 참조하여 설명하였지만, 해당 기술 분야의 숙련된 당업자 또는 해당 기술분야에 통상의 지식을 갖는 자라면 후술할 특허청구범위에 기재된 본 발명의 사상 및 기술 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다. 따라서, 본 발명의 기술적 범위는 명세서의 상세한 설명에 기재된 내용으로 한정되는 것이 아니라 특허청구범위에 의해 정하여져야만 할 것이다.Although the detailed description of the present invention has been described with reference to a preferred embodiment of the present invention, those skilled in the art or those skilled in the art having ordinary knowledge in the technical field described in the claims to be described later and It will be appreciated that various modifications and variations can be made in the present invention without departing from the scope of the art. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

100…PP+GF CORE
200…부직포
300…PP 필름
400…접착 필름
500…PC 필름
600…PC-ABS 필름100... PP + GF CORE
200... Non-woven
300... PP film
400... Adhesive film
500... PC film
600... PC-ABS Film

Claims (10)

부직포;
PC-ABS(Poly Carbonate-Acrylonitrile Butadiene Styrene) 필름;
폴리프로필렌(PP) 수지에 글래스 파이버(GF)가 함침된 LWRT 소재로 구성된 코어;
상기 PC-ABS 필름; 및
상기 부직포;가 엔진에서 지면방향으로 순차적으로 적층되고,
상기 부직포는 PET 소재로 이루어지고,
상기 PC-ABS 필름과 상기 부직포가 열판합지공정에서 접착되며,
상기 PC-ABS 필름의 두께는 0.12mm 내지 0.17mm인 것을 특징으로 하는
PC-ABS 필름을 포함하는 차량용 언더커버.
Non-woven;
Poly Carbonate-Acrylonitrile Butadiene Styrene (PC-ABS) films;
A core composed of an LWRT material impregnated with a glass fiber (GF) in a polypropylene (PP) resin;
The PC-ABS film; And
The nonwoven fabric is sequentially laminated in the engine in the ground direction,
The nonwoven fabric is made of a PET material,
The PC-ABS film and the nonwoven fabric are bonded in a hot lamination process,
The thickness of the PC-ABS film is characterized in that 0.12mm to 0.17mm
Vehicle undercover comprising PC-ABS film.
삭제delete 삭제delete 삭제delete 폴리프로필렌(PP) 수지에 글래스 파이버(GF)가 함침된 LWRT 소재로 구성된 코어의 양면에 PC-ABS(Poly Carbonate-Acrylonitrile Butadiene Styrene) 필름을 접착하여 시트층을 제작하는 단계;
상기 시트층의 양면에 부직포를 덧대고, 상기 각각의 부직포의 표면 근방에 열판을 인접시키는 단계; 및
상기 열판을 상기 시트층의 중심 방향으로 가압하는 단계;
상기 부직포, 상기 시트층 및 상기 부직포로 이루어진 층 전체에 열을 가하는 단계;
트리밍하여 원하는 언더커버 형상을 제조하는 단계; 및
피어싱을 통해 홀을 형성하는 단계:를 포함하고,
상기 부직포는 PET 소재로 이루어지고
상기 PC-ABS 필름의 두께는 0.12mm 내지 0.17mm인 것을 특징으로 하는
PC-ABS 필름을 포함하는 차량용 언더커버 제조방법.Preparing a sheet layer by adhering a poly-carbonate-acrylonitrile butadiene styrene (PC-ABS) film to both surfaces of a core made of LWRT material impregnated with glass fiber (GF) in polypropylene (PP) resin;
Padding nonwoven fabric on both sides of the sheet layer and adjoining a hot plate near the surface of each nonwoven fabric; And
Pressing the hot plate toward the center of the sheet layer;
Applying heat to the entire layer of the nonwoven fabric, the sheet layer and the nonwoven fabric;
Trimming to produce a desired undercover shape; And
Forming a hole through piercing:
The nonwoven fabric is made of PET material
The thickness of the PC-ABS film is characterized in that 0.12mm to 0.17mm
Vehicle undercover manufacturing method comprising a PC-ABS film. 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete
KR1020170182132A 2017-12-28 2017-12-28 Under cover for vehicle including pc-abs film and manufacturing method thereof KR102064339B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020170182132A KR102064339B1 (en) 2017-12-28 2017-12-28 Under cover for vehicle including pc-abs film and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020170182132A KR102064339B1 (en) 2017-12-28 2017-12-28 Under cover for vehicle including pc-abs film and manufacturing method thereof

Publications (2)

Publication Number Publication Date
KR20190079985A KR20190079985A (en) 2019-07-08
KR102064339B1 true KR102064339B1 (en) 2020-01-09

Family

ID=67256485

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020170182132A KR102064339B1 (en) 2017-12-28 2017-12-28 Under cover for vehicle including pc-abs film and manufacturing method thereof

Country Status (1)

Country Link
KR (1) KR102064339B1 (en)

Also Published As

Publication number Publication date
KR20190079985A (en) 2019-07-08

Similar Documents

Publication Publication Date Title
US6802389B2 (en) Multi-density sound attenuating laminates and methods of making same
CN103534750B (en) Automobile noise decay decorative element
JP5769738B2 (en) Sound insulation trim parts for automobiles
KR101756303B1 (en) Undercover for automobile and Preparing Method thereof
EP2937858B1 (en) Dash pad for vehicle
KR101472884B1 (en) Engine Under Cover Material and Engine Under Cover Produced with the Same
KR102064339B1 (en) Under cover for vehicle including pc-abs film and manufacturing method thereof
JP4630155B2 (en) Interior material for automobile having uneven shape and manufacturing method thereof
KR20200062087A (en) Engine room separation wall for a vehicle with improved sound insulation and reduced weight
KR102410153B1 (en) Composite material for automobile engine cover and engine underfloor and its manufacturing method
CN110293916B (en) Sound insulation assembly for a motor vehicle and associated manufacturing method
KR20160137909A (en) A fibrous component for vehicle exterior and a manufacturing method thereof
JP3813279B2 (en) Automotive floor laying interior material and manufacturing method thereof
EP3095584B1 (en) A process of manufacturing twin-sheet foam air duct with sound absorbing interlayer
GB2583013A (en) Mold for manufacturing a soundproofing assembly of a motor vehicle and associated manufacturing method
CN111976247B (en) Composite material sound insulation pad, and preparation method and application thereof
KR102328692B1 (en) Automobile floor carpet using low weight thermoplastic polyethylene sound insulation coating and method for manufacturing the same
JP7269116B2 (en) Composite member and its manufacturing method
US20220048274A1 (en) Dash Isolation Pad
KR102338005B1 (en) Undercover for automobile and Preparing Method thereof
EP3804976A1 (en) Multilayer laminate for heat shielding applications
KR102682641B1 (en) Manufacturing method of trunk interior material for electric vehicle using single material
KR20240076070A (en) Vehicle Trunk Luggage Covering Mat Using A Single Material And Its Manufacturing Method
KR20230018017A (en) Method for manufacturing vehicle interior seat and vehicle interior seat using same
KR20240007792A (en) Car Trunk Luggage Board And Manufacturing Method Therefor

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant