KR20240007792A - Car Trunk Luggage Board And Manufacturing Method Therefor - Google Patents
Car Trunk Luggage Board And Manufacturing Method Therefor Download PDFInfo
- Publication number
- KR20240007792A KR20240007792A KR1020220083601A KR20220083601A KR20240007792A KR 20240007792 A KR20240007792 A KR 20240007792A KR 1020220083601 A KR1020220083601 A KR 1020220083601A KR 20220083601 A KR20220083601 A KR 20220083601A KR 20240007792 A KR20240007792 A KR 20240007792A
- Authority
- KR
- South Korea
- Prior art keywords
- layer
- pet
- weight
- acrylic adhesive
- foam
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000010410 layer Substances 0.000 claims abstract description 166
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 71
- 239000006260 foam Substances 0.000 claims abstract description 47
- 229920002799 BoPET Polymers 0.000 claims abstract description 35
- 239000003522 acrylic cement Substances 0.000 claims abstract description 34
- 239000004745 nonwoven fabric Substances 0.000 claims description 23
- 210000003491 skin Anatomy 0.000 claims description 22
- 239000011347 resin Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 16
- 238000005303 weighing Methods 0.000 claims description 10
- 239000003963 antioxidant agent Substances 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- 230000003078 antioxidant effect Effects 0.000 claims description 8
- 238000005187 foaming Methods 0.000 claims description 8
- 239000004088 foaming agent Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 239000003431 cross linking reagent Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 210000002615 epidermis Anatomy 0.000 claims description 2
- 239000000835 fiber Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 229920006243 acrylic copolymer Polymers 0.000 description 7
- 239000012790 adhesive layer Substances 0.000 description 7
- 230000002787 reinforcement Effects 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 5
- 239000003063 flame retardant Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 239000012792 core layer Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004971 Cross linker Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000004848 polyfunctional curative Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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
- B32B27/06—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
- B32B27/065—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 foam
-
- 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
-
- 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
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- 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
- 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
- B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being 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
- 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
- B60R5/00—Compartments within vehicle body primarily intended or sufficiently spacious for trunks, suit-cases, or the like
- B60R5/04—Compartments within vehicle body primarily intended or sufficiently spacious for trunks, suit-cases, or the like arranged at rear of vehicle
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such 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
- 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
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0264—Polyester
-
- 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
- B32B2266/00—Composition of foam
- B32B2266/08—Closed cell foam
-
- 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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/022—Foam
-
- 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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/10—Fibres of continuous length
- B32B2305/20—Fibres of continuous length in the form of a non-woven mat
-
- 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
- B32B2307/70—Other properties
- B32B2307/72—Density
-
- 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
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
Abstract
본 발명은 자동차용 트렁크 러기지보드에 관한 것이며, 구체적으로는 표피층(1), 아크릴점착층(2), PET 필름층(3), PET 폼층(4), PET 필름층(5), 아크릴점착층(6), 이면층(7)이 순차 적층된 것을 특징으로 차량용 트렁크 러기지보드에 관한 것이다.The present invention relates to a trunk luggage board for automobiles, and specifically, skin layer (1), acrylic adhesive layer (2), PET film layer (3), PET foam layer (4), PET film layer (5), and acrylic adhesive. It relates to a trunk luggage board for a vehicle, characterized in that the layer (6) and the back layer (7) are sequentially laminated.
Description
본 발명은 자동차용 트렁크 러기지보드 및 그 제조방법에 관한 것이며, 구체적으로는 부직포인 표피층, 점착층, 필름층, 폼층, 필름층, 점착층, 부직포인 이면층이 순차적으로 적층되어 경량이면서도 기계적 강도, 차음성이 우수하고, 성형 후 뒤틀림이 적은 성형성이 우수한 자동차용 트렁크 러기지보드 및 그의 제조방법에 관한 것이다.The present invention relates to a trunk luggage board for an automobile and a method of manufacturing the same, and specifically, a non-woven skin layer, an adhesive layer, a film layer, a foam layer, a film layer, an adhesive layer, and a non-woven back layer are sequentially laminated to form a lightweight yet mechanically designed body. It relates to a trunk luggage board for automobiles that has excellent strength, sound insulation, and moldability with little distortion after molding, and a method of manufacturing the same.
일반적으로, 자동차의 트렁크에는 도 1의 예시와 같이 상기 자동차들의 트렁크 바닥에 러기지보드(10)가 마련되고, 상기 러기지보드(10)의 하부에는 스페어타이어 등이 장착된다.Generally, a luggage board 10 is provided at the bottom of the trunk of a car, as shown in the example of FIG. 1, and a spare tire, etc. is mounted on the lower part of the luggage board 10.
상기 러기지보드(10) 상에는 여러 종류의 짐들을 적재할 수 있도록 하여 준다. 이러한 러기지보드(10)는 다양한 경량 소재를 통해 차량의 종류에 따라 다양한 형태가 개발되고 있다.Various types of luggage can be loaded on the luggage board 10. This luggage board 10 is being developed in various forms depending on the type of vehicle through various lightweight materials.
최근 들어 여가활동 및 아웃도어 활동의 증가에 힘입어 많은 짐을 차량에 싣는 경우가 급격히 증가함으로 인해 짐을 싣는 공간인 트렁크에서 짐을 직접적으로 올려 놓게 되는 러기지보드(10)도 무겁고 많은 짐을 충분히 받칠 수 있도록 높은 강도를 요구하고 있다.Recently, due to the increase in leisure activities and outdoor activities, the number of cases of loading large amounts of luggage on vehicles has rapidly increased, so the luggage board (10), which places the luggage directly on the trunk, is also designed to sufficiently support heavy and large loads. High strength is required.
이에 따라, 기존 경량화의 개념에 촛점이 맞추어져 있던 여러 형태의 러기지보드(10)들도 충분한 강도 유지를 위해 개량되고 있는데, 결국 제품의 두께를 두껍게 하거나 혹은 스틸강재나 스틸파이프와 같은 보강재를 덧대는 설계안으로 제품이 개발될 수 밖에 없어 중량이 현격히 상승함으로써 경량화 개념에 역행하게 되는 문제가 또다시 발생하게 되었다.Accordingly, various types of luggage boards (10), which were focused on the existing concept of lightweighting, are also being improved to maintain sufficient strength, which eventually requires thickening the product or using reinforcing materials such as steel steel or steel pipe. As the product had no choice but to be developed with a padded design, the weight increased significantly, which once again caused the problem of running counter to the concept of lightweighting.
경량화시키면서 강도 유지와 관련한 선행기술로서, 특허문헌 1에 제시된 러기지보드로 이루어진 자동차용 트렁크 플로어는, 상기 러기지보드는 폴리프로필렌수지가 발포성형된 EPP 코어층; 상기 EPP 코어층의 상면에 라미네이트된 상부보강시트층; 상기 상부보강시트층의 상면에 부착된 상부부직포층; 상기 EPP 코어층의 하면에 상기 상부보강시트층과 동일하게 라미네이트된 하부보강시트층;을 포함하되, 상기 하부보강시트층의 하면은 엠보처리 혹은 패터닝되고, 상기 상부보강시트층 및 하부보강시트층은 방향성을 갖는 테이프 형태의 프리프레그 다수매가 서로 엇갈리게 교차 적층된 적층시트를 사용하며; 상기 적층시트는 적층패턴에 있어 섬유배열방향의 가로:세로 비율을 80:20, 70:30, 60:40, 50:50으로 조정하여 각 비율에 따라 인장강도의 비율이 480MPa:120Mpa, 420MPa:180MPa, 360MPa:240MPa, 300MPa:300MPa로 유지되게 배치되고; 상기 EPP 코어층은 길이방향 혹은 폭방향으로 두께가 다르게 가공된 것을 특징으로 하는 자동차용 트렁크 플로어를 개시하고 있다.As a prior art related to maintaining strength while reducing weight, the trunk floor for an automobile made of a luggage board presented in Patent Document 1 includes an EPP core layer in which polypropylene resin is foamed and molded; An upper reinforcement sheet layer laminated on the upper surface of the EPP core layer; An upper non-woven fabric layer attached to the upper surface of the upper reinforcement sheet layer; A lower reinforcement sheet layer laminated on the lower surface of the EPP core layer in the same manner as the upper reinforcement sheet layer, wherein the lower surface of the lower reinforcement sheet layer is embossed or patterned, and the upper reinforcement sheet layer and the lower reinforcement sheet layer It uses a laminated sheet in which multiple sheets of directional tape-type prepreg are stacked alternately; In the laminated sheet, the horizontal:vertical ratio of the fiber arrangement direction in the laminated pattern is adjusted to 80:20, 70:30, 60:40, and 50:50, and the tensile strength ratio is 480MPa:120Mpa, 420MPa according to each ratio: arranged to be maintained at 180MPa, 360MPa:240MPa, 300MPa:300MPa; A trunk floor for an automobile is disclosed, wherein the EPP core layer is processed to have different thicknesses in the longitudinal or width direction.
본 발명에서 해결하려는 과제는 자동차용 트렁크 러기지보드에 관한 것이며, 구체적으로는 부직포인 표피층, 점착층, 필름층, 폼층, 필름층, 점착층, 부직포인 이면층이 순차적으로 적층되어 경량이면서도 기계적 강도, 차음성이 우수하고, 성형 후 뒤틀림이 적은 성형성이 우수한 자동차용 트렁크 러기지보드 및 그의 제조방법의 제공을 목적으로 하는 것이다.The problem to be solved in the present invention relates to a trunk luggage board for automobiles, and specifically, a non-woven skin layer, an adhesive layer, a film layer, a foam layer, a film layer, an adhesive layer, and a non-woven back layer are sequentially laminated to form a lightweight yet mechanical board. The purpose is to provide a trunk luggage board for automobiles with excellent strength, excellent sound insulation, and excellent formability with little distortion after molding, and a manufacturing method thereof.
본 발명에 따른 과제의 해결수단으로 자동차용 트렁크 러기지보드는 표피층(1), 아크릴점착층(2), PET 필름층(3), PET 폼층(4), PET 필름층(5), 아크릴점착층(6), 이면층(7)이 순차 적층된다. As a means of solving the problem according to the present invention, the trunk luggage board for automobiles includes a skin layer (1), an acrylic adhesive layer (2), a PET film layer (3), a PET foam layer (4), a PET film layer (5), and an acrylic adhesive layer. The layer 6 and the back layer 7 are sequentially laminated.
본 발명에 따른 자동차용 트렁크 러기지보드의 또 다른 실시형태는, PET 부직포로 이루어진 중량이 250 ~ 600g/㎡인 표피층(1), 중량이 50 ~ 100g/㎡인 아크릴점착층(2), 중량이 30 ~ 100g/㎡인 PET 필름층(3), 폐쇄형(Closed Structure)를 갖고 중량이 100 ~ 1,000Kg/㎡인 PET 폼층(4), 중량이 30 ~ 100g/㎡인 PET 필름층(5), 중량이 50 ~ 100g/㎡인 아크릴점착층(6), PET 부직포로 이루어진 중량이 100 ~ 600g/㎡인 이면층(7)을 순차 적층하여 결합된다.Another embodiment of the trunk luggage board for automobiles according to the present invention includes a skin layer (1) made of PET nonwoven fabric with a weight of 250 to 600 g/m2, an acrylic adhesive layer (2) with a weight of 50 to 100 g/m2, and a weight of A PET film layer (3) with a weight of 30 to 100 g/m2, a PET foam layer (4) with a closed structure and a weight of 100 to 1,000 Kg/m2, and a PET film layer (5) with a weight of 30 to 100 g/m2. ), an acrylic adhesive layer (6) weighing 50 to 100 g/m2, and a back layer (7) made of PET non-woven fabric and weighing 100 to 600 g/m2 are sequentially laminated and combined.
본 발명에 따른 자동차용 트렁크 러기지보드의 제조방법은, a). PET 부직포로 이루어진 중량이 250 ~ 600g/㎡인 표피층(1)과, PET 부직포로 이루어진 중량이 100 ~ 600g/㎡인 이면층(7)을 각각 준비하는 단계, b). 중량이 30 ~ 100g/㎡인 PET 필름층(3)(5)을 각각 준비하는 단계, c). PET 수지에 가교제, 산화방지제 및 충전제를 배합하여 용융시킨 수지용융물을 발포제와 함께 발포시켜 폐쇄 구조(Closed Structure)의 PET 폼을 제조하여 100 ~ 1,000Kg/㎡인 PET 폼층(4)을 준비하는 단계, d). 상기 준비된 표피층(1)과 PET 필름층(3)을 아크릴접착층(2)을 매개로 결합체(a1)를 준비하는 단계, e). 상기 준비된 이면층(6)과 PET 필름층(4)을 아크릴접착층(5)을 매개로 결합체(a2)를 준비하는 단계, f). 상기 d)단계의 결합체(a1)과, 상기 e)단계의 결합체(a2)이 PET 폼층(4)의 상하면에 각각 대면하도록 적층하여 합지하는 단계가 포함된다.The method of manufacturing a trunk luggage board for an automobile according to the present invention is: a). Step of preparing a skin layer (1) made of PET nonwoven fabric with a weight of 250 to 600 g/m2 and a back layer (7) made of PET nonwoven fabric and weighing 100 to 600 g/m2, b). Step c) of preparing PET film layers (3) and (5) with a weight of 30 to 100 g/m2, respectively. A step of preparing a PET foam layer (4) of 100 to 1,000Kg/㎡ by mixing PET resin with a crosslinker, antioxidant, and filler and foaming the melted resin with a foaming agent to produce closed structure PET foam. , d). Step of preparing a combination (a1) of the prepared skin layer (1) and PET film layer (3) using an acrylic adhesive layer (2), e). Step of preparing a combination (a2) of the prepared back layer (6) and PET film layer (4) using an acrylic adhesive layer (5), f). It includes the step of laminating and laminating the binder (a1) of step d) and the binder (a2) of step e) so that the upper and lower surfaces of the PET foam layer 4 face each other.
PET 폼층(4)은 PET를 발포하기 전에 미리 130℃에서 건조하여 수분을 제거하여 사용한 후, 압출기에 수분이 제거된 PET 100중량부에 대하여 가교제로 피로멜리트산 무수물 1중량부, 탄산칼슘 3중량부 및 산화방지제 0.1중량부를 투입하고, 혼합하면서 280±5℃로 가열하여 용융시킨 다음 수지용융물을 압출기에 투입하고 발포제를 주입하여 시트상으로 발포시켜 제조되는 평균두께가 2.5 mm이고, 전체 셀의 약 97±1%가 폐쇄 셀(Closed Cell)이며, 평균 셀 수가 1㎟ 당 12±5개이고, 셀의 평균크기가 450±20㎛이다.The PET foam layer (4) is used by drying at 130°C to remove moisture before foaming PET, then adding 1 part by weight of pyromellitic anhydride and 3 parts by weight of calcium carbonate as a crosslinking agent for 100 parts by weight of PET from which moisture was removed in an extruder. Add 0.1 part by weight of the resin and antioxidant, melt it by heating to 280 ± 5°C while mixing, then put the resin melt into an extruder, inject a foaming agent, and foam it into a sheet shape. The average thickness is 2.5 mm, and the total cell thickness is 2.5 mm. About 97±1% are closed cells, the average number of cells is 12±5 per 1㎟, and the average cell size is 450±20㎛.
본 발명의 자동차용 트렁크 러기지보드는 부직포인 표피층, 점착층, 필름층, 폼층, 필름층, 점착층, 부직포인 이면층이 적층되어 경량이면서도 기계적 강도, 차음성이 우수하고, 성형 후 뒤틀림을 억제할 수 있는 장점을 지니고 있다The trunk luggage board for automobiles of the present invention is made up of a non-woven skin layer, an adhesive layer, a film layer, a foam layer, a film layer, an adhesive layer, and a non-woven back layer, so that it is lightweight and has excellent mechanical strength and sound insulation, and is resistant to distortion after molding. It has the advantage of suppressing
도 1은 자동차 트렁크 러기지보드와 설치위치 사진
도 2는 본 발명에 따른 자동차용 트렁크 러기지보드의 적층구조
도 3은 본 발명에 따른 자동차용 트렁크 러기지보드의 제조방법Figure 1 is a photo of the car trunk luggage board and installation location
Figure 2 is a laminated structure of a trunk luggage board for an automobile according to the present invention.
Figure 3 shows a method of manufacturing a trunk luggage board for an automobile according to the present invention.
이하에서는 본 발명을 실시하기 위한 구체적 내용에 의해 보다 구체적으로 설명하지만 아래 기재된 내용 및 실시예에 의해 본 발명이 한정되는 것은 아니다. Hereinafter, the present invention will be described in more detail with specific details for carrying out the present invention, but the present invention is not limited to the details and examples described below.
본 발명에 따른 자동차용 트렁크 러기지보드는 표피층(1), 아크릴점착층(2), PET 필름층(3), PET 폼층(4), PET 필름층(5), 아크릴점착층(6), 이면층(7)이 순차 적층된다.The trunk luggage board for automobiles according to the present invention includes a skin layer (1), an acrylic adhesive layer (2), a PET film layer (3), a PET foam layer (4), a PET film layer (5), an acrylic adhesive layer (6), The back layer 7 is sequentially laminated.
구체적으로, 표피층(1)은 PET 부직포로 이루어진 중량이 250 ~ 600g/㎡의 면밀도이고, 아크릴점착층(2)은 중량이 50 ~ 100g/㎡의 면밀도이며, PET 필름층(3)은 중량이 30 ~ 100g/㎡의 면밀도이고, PET 폼층(4)은 폐쇄형(Closed Structure)를 갖고 중량이 100 ~ 1,000Kg/㎡의 면밀도로 상대적으로 두껍고, 러기지보드의 주된 기기재 기능을 한다. Specifically, the skin layer (1) is made of PET nonwoven fabric and has an area density of 250 to 600 g/m2, the acrylic adhesive layer (2) has an area density of 50 to 100 g/m2, and the PET film layer (3) has a weight of It has an areal density of 30 ~ 100g/m2, and the PET foam layer (4) has a closed structure and is relatively thick with an areal density of 100 ~ 1,000Kg/m2, and functions as the main equipment of the luggage board.
PET 필름층(5)은 중량이 30 ~ 100g/㎡이고, 아크릴점착층(6)은 중량이 30 ~ 100g/㎡이며, 이면층(7)은 PET 부직포로 이루어진 중량이 100 ~ 600g/㎡의 면밀도를 갖는다The PET film layer (5) weighs 30 to 100 g/m2, the acrylic adhesive layer (6) weighs 30 to 100 g/m2, and the back layer (7) is made of PET nonwoven fabric and weighs 100 to 600 g/m2. has areal density
본 발명에 따른 상기 표피층(1) 및 이면층(7)의 PET 부직포는 PET 소재의 섬유이고 7데니아, 10데니아, 13데니아 섬유, 저융점 섬유를 혼섬하여 표피층(1) 및 이면층(7)의 PET 부직포를 제조한다.The PET nonwoven fabric of the skin layer (1) and back layer (7) according to the present invention is a PET material fiber, and 7 denier, 10 denier, 13 denier fiber, and low melting point fiber are mixed to form the skin layer (1) and back layer (7). produces PET nonwoven fabric.
상기 아크릴점착층(2)(6)은 각각 표피층(1) 및 이면층(7)의 PET 부직포와 후술되는 PET 필름층(3)(5)을 접합시키기 위한 매개 기능을 한다.The acrylic adhesive layers (2) (6) serve as an intermediary function for bonding the PET nonwoven fabric of the skin layer (1) and the back layer (7) to the PET film layers (3) (5), which will be described later.
본 발명의 상기 아크릴점착층(2)(6)을 형성하는 점착제는 아크릴 코폴리머를 주재로 하는 아크릴계 점착제이다.The adhesive forming the acrylic adhesive layer (2) (6) of the present invention is an acrylic adhesive mainly composed of acrylic copolymer.
상기 아크릴점착층(2)(6)은 아크릴 코폴리머에 용매, 경화제 및 난연제 등으로 조성되며, 일 실시형태로 아크릴 코폴리머 55 ~ 57중량부, 아세톤 5 ~ 15중량부, 에틸아세테이트 25 ~ 35중량부, 메틸알코올 1 ~ 5중량부, 난연제 18 ~ 23중량부 및 경화제 0.5 ~ 2중량부로 조성된 아크릴계 점착제가 사용된다.The acrylic adhesive layer (2) (6) is composed of an acrylic copolymer with a solvent, a curing agent, and a flame retardant, and in one embodiment, it contains 55 to 57 parts by weight of acrylic copolymer, 5 to 15 parts by weight of acetone, and 25 to 35 parts by weight of ethyl acetate. An acrylic adhesive composed of 1 to 5 parts by weight of methyl alcohol, 18 to 23 parts by weight of flame retardant, and 0.5 to 2 parts by weight of hardener is used.
상기 PET 필름층(3)(5)은 PET 폼층(4)의 각각 상하면에 적층되는데 이때 PET 폼층(4)과 대면하는 PET 필름층(3)(5)을 각각 가열시켜 적층하고 성형시켜 PET 필름층(3)(5)은 PET 폼층(4)이 접착된다.The PET film layers (3) (5) are laminated on the upper and lower surfaces of the PET foam layer (4). At this time, the PET film layers (3) (5) facing the PET foam layer (4) are heated, laminated, and molded to form a PET film. Layers (3) and (5) are bonded to the PET foam layer (4).
본 발명에 따른 PET 폼층(4)은 PET 수지를 발포시킨 폐쇄형(Closed Structure)의 PET 폼 시트로 이루어져 있으며, 본 발명의 자동차용 크렁크 러기지보드의 강성을 유지시키는 기지재로서 기능을 하며, 또한 자동차 하부에서 전달되는 소음을 차단하는 차음기능도 갖는다. The PET foam layer 4 according to the present invention is made of a PET foam sheet with a closed structure made of foamed PET resin, and functions as a base material to maintain the rigidity of the crunk luggage board for automobiles of the present invention. , It also has a sound insulation function that blocks noise transmitted from the underside of the car.
일반적으로 폐쇄형 폼(Closed Structure Foam)은 높은 압축강도와 가볍고 유연하며, 견고하고 대부분의 큰 왜곡없이 많은 양의 압력을 견딜 수 있을 정도로 내구성이 뛰어나다.In general, Closed Structure Foam has high compressive strength, is light, flexible, strong, and durable enough to withstand a large amount of pressure without major distortion.
본 발명의 PET 폼층(4)은 PET를 발포시킨 폐쇄형(Closed Structure)의 PET 폼의 재질과 구조적 특징에 의해 단위면적 당 중량을 감소시키면서도 굴곡강도, 굴곡탄성률 등 기계적 특성을 개선하는 역할을 한다.The PET foam layer (4) of the present invention serves to improve mechanical properties such as flexural strength and flexural modulus while reducing the weight per unit area due to the material and structural characteristics of closed structure PET foam made of expanded PET. .
본 발명에 따른 차량용 리어시트백 후면 부착용 부직포의 제조방법은 a). PET 부직포로 이루어진 중량이 250 ~ 600g/㎡인 표피층(1)과, PET 부직포로 이루어진 중량이 100 ~ 600g/㎡인 이면층(7)을 각각 준비하는 제 1단계(S1), b). 중량이 30 ~ 100g/㎡인 PET 필름층(3)(5)을 각각 준비하는 제 2단계(S2), c). PET 수지에 가교제, 산화방지제 및 충전제를 배합하여 용융시킨 수지용융물을 발포제와 함께 발포시켜 폐쇄 구조(Closed Structure)의 PET 폼을 제조하여 100 ~ 1,000Kg/㎡인 PET 폼층(4)을 준비하는 제 3단계(S3), d). 상기 준비된 표피층(1)과 PET 필름층(3)을 아크릴접착층(2)을 매개로 결합체(a1)를 준비하는 제 4단계(S4), e). 상기 준비된 이면층(7)과 PET 필름층(5)을 아크릴접착층(6)을 매개로 결합체(a2)를 준비하는 제 5단계(S5), f). 상기 d)단계의 결합체(a1)과, 상기 e)단계의 결합체(a2)을 PET 폼층(4)의 상하면에 각각 대면하도록 적층하여 합지하는 제 6단계(S6)가 포함된다.The method for manufacturing a nonwoven fabric for attachment to the rear of a rear seat bag for a vehicle according to the present invention is a). The first step (S1), b) of preparing the skin layer (1) made of PET nonwoven fabric with a weight of 250 to 600 g/m2 and the back layer (7) made of PET nonwoven fabric and weighing 100 to 600 g/m2. The second step (S2), c) of preparing PET film layers (3) and (5) each weighing 30 to 100 g/m2. A product that prepares a PET foam layer (4) of 100 ~ 1,000Kg/㎡ by mixing PET resin with a crosslinker, antioxidant, and filler and foaming the melted resin with a foaming agent to produce closed structure PET foam. Step 3 (S3), d). The fourth step (S4), e) of preparing the combination (a1) of the prepared skin layer (1) and PET film layer (3) through the acrylic adhesive layer (2). The fifth step (S5), f) of preparing a combination (a2) of the prepared back layer (7) and PET film layer (5) using an acrylic adhesive layer (6). A sixth step (S6) is included in which the binder (a1) of step d) and the binder (a2) of step e) are stacked so that the upper and lower surfaces of the PET foam layer 4 face each other.
본 발명에 따른 표피층(1) 및 이면층(7)을 각각 준비하는 제 1단계는 PET 부직포는 PET 소재의 섬유이고 7데니아, 10데니아, 13데니아 섬유, 저융점 섬유를 원료로 하여 널리 알려진 부직포 제조방법인 카딩공정, 웹형성공정 및 웹결합(접착)공정에 의해 부직포를 제조하며, 특별히 제한되는 것은 아니다.The first step of preparing the skin layer (1) and the back layer (7) according to the present invention is PET nonwoven fabric, which is a PET material fiber and is a widely known nonwoven fabric made of 7 denier, 10 denier, 13 denier fiber, and low melting point fiber as raw materials. Nonwoven fabric is manufactured by the carding process, web forming process, and web bonding (adhesion) process, and is not particularly limited.
상기 아크릴점착층(2)(6)은 각각 표피층(1) 및 이면층(7)의 PET 부직포와 후술되는 PET 필름층(3)(5)을 접합시키기 위한 매개층 기능을 하는 것으로, 아크릴점착층(2)(6)을 형성하는 점착제는 아크릴 코폴리머를 주재로 하는 아크릴계 점착제이다.The acrylic adhesive layers (2) and (6) function as an intermediate layer for bonding the PET nonwoven fabric of the skin layer (1) and the back layer (7) and the PET film layers (3) (5), which will be described later, respectively. The adhesive forming layers (2) and (6) is an acrylic adhesive mainly composed of acrylic copolymer.
상기 아크릴점착층(2)(6)은 아크릴 코폴리머에 용매, 경화제 및 난연제 등으로 조성되며, 일 실시형태로 아크릴 코폴리머 55 ~ 57중량부, 아세톤 5 ~ 15중량부, 에틸아세테이트 25 ~ 35중량부, 메틸알코올 1 ~ 5중량부, 난연제 18 ~ 23중량부 및 경화제 0.5 ~ 2중량부로 조성된 아크릴계 점착제가 사용된다.The acrylic adhesive layer (2) (6) is composed of an acrylic copolymer with a solvent, a curing agent, and a flame retardant, and in one embodiment, it contains 55 to 57 parts by weight of acrylic copolymer, 5 to 15 parts by weight of acetone, and 25 to 35 parts by weight of ethyl acetate. An acrylic adhesive composed of 1 to 5 parts by weight of methyl alcohol, 18 to 23 parts by weight of flame retardant, and 0.5 to 2 parts by weight of hardener is used.
상기 PET 폼층(4)은 PET를 발포하기 전에 미리 130℃에서 건조하여 수분을 제거하여 사용한 후, 압출기에 수분이 제거된 PET 100중량부에 대하여 가교제로 피로멜리트산 무수물 1중량부, 탄산칼슘 3중량부 및 산화방지제 0.1중량부를 투입하고, 혼합하면서 280±5℃로 가열하여 용융시킨 다음 수지용융물을 압출기에 투입하고 발포제를 주입하여 시트상으로 발포시켜 제조되는 평균두께가 2.5 mm이고, 전체 셀의 약 97±1%가 폐쇄 셀(Closed Cell)이며, 평균 셀 수가 1㎟ 당 12±5개이고, 셀의 평균크기가 450±20㎛를 갖는다.The PET foam layer (4) is dried at 130°C to remove moisture before foaming PET, and then added to 100 parts by weight of PET from which moisture was removed in an extruder, 1 part by weight of pyromellitic anhydride and 3 parts by weight of calcium carbonate. Add 0.1 part by weight of antioxidant and 0.1 part by weight of antioxidant, melt by heating to 280 ± 5°C while mixing, then put the resin melt into an extruder, inject foaming agent, and foam into a sheet. The average thickness is 2.5 mm, and the entire cell is manufactured. About 97±1% of cells are closed cells, the average number of cells is 12±5 per 1㎟, and the average cell size is 450±20㎛.
상기 PET 폐쇄형(Closed Structure)의 PET 폼층(4)은 원료수지에 가교제, 산화방지제 및 충진제 등의 첨가제를 혼합하여 1차 용융시킨 다음, 수지용융물을 압축기에 의해 발포제와 함께 시트상으로 발포 성형하는 것으로 이루어진다.The PET foam layer (4) of the PET closed structure is first melted by mixing additives such as crosslinkers, antioxidants, and fillers with the raw resin, and then the resin melt is foamed and molded into a sheet with a foaming agent by a compressor. It is done by doing.
본 발명에 따른 d)단계와 e)단계는 a)단계에서 준비된 표피층(1), 이면층(7)과 c)단계에서 준비된 PET필름층(3)(6)을 각각 아크릴점착층(2)(6)을 매개로 결합시켜 각각 결합체(a1)(a2)를 제조한다.In steps d) and e) according to the present invention, the skin layer (1), the back layer (7) prepared in step a), and the PET film layer (3) (6) prepared in step c) are formed into an acrylic adhesive layer (2), respectively. (6) is combined to produce conjugates (a1) and (a2), respectively.
이후, f)단계에서 준비된 결합체(a1)(a2)와 c)단계에서 준비된 결합체 폼층(4)을 대면하여 적층하여 합지한 다음 성형한다.Afterwards, the combination (a1) (a2) prepared in step f) and the combination foam layer (4) prepared in step c) are stacked face to face, laminated, and then molded.
본 발명에 따른 자동차용 크렁크 러기지보드는 폼층(4)의 폐쇄형(Closed Structure)의 PET 폼 구조에 의한 기계적 강성을 갖는 기지재 역할과 폼 구조에 의한 차음성과 경량성이 우수하고 또 굴곡강도, 굴곡탄성률 등 기계적 특성이 양호하여 자동차의 트렁크 러기재보드 소재로 특히 적합하다.The crunk luggage board for automobiles according to the present invention serves as a base material with mechanical rigidity due to the PET foam structure of the closed structure of the foam layer (4), and has excellent sound insulation and lightweight properties due to the foam structure. It has good mechanical properties such as flexural strength and flexural modulus, making it particularly suitable as a material for car trunk luggage.
이하에서는 구체적인 <실시예> 및 <시험예>를 통하여 본 발명을 보다 구체적으로 설명하기로 한다.Hereinafter, the present invention will be described in more detail through specific <Examples> and <Test Examples>.
<실시예 1> <Example 1>
- 표피층(1) 제조- Production of epidermal layer (1)
PET 소재의 섬유이고 7데니아, 10데니아, 13데니아 섬유, 저융점 섬유를 각각 20 중량부, 40중량부, 30중량부, 10중량부를 카딩, 크로스랩핑 및 니들펀칭하여 표면층용 부직포(400g/㎡)를 제조하였다.It is a PET material fiber, and 20 parts by weight, 40 parts by weight, 30 parts by weight, and 10 parts by weight of 7-denier, 10-denier, 13-denier fiber, and low-melting point fiber, respectively, were carded, cross-wrapped, and needle-punched to create a non-woven fabric for the surface layer (400 g/㎡). ) was prepared.
- 이면층(7) 제조- Manufacturing of back layer (7)
PET 소재의 섬유이고 7데니아, 10데니아, 13데니아 섬유, 저융점 섬유를 각각 20 중량부, 40중량부, 30중량부, 10중량부를 카딩, 크로스랩핑 및 니들펀칭하여 이면층용 부직포(300g/㎡)를 제조하였다.It is a PET material fiber, and 20 parts by weight, 40 parts by weight, 30 parts by weight, and 10 parts by weight of 7-denier, 10-denier, 13-denier fiber, and low-melting point fiber, respectively, were carded, cross-wrapped, and needle-punched to make a non-woven fabric for the back layer (300 g/㎡). ) was prepared.
- PET 필름층(3)(5)의 준비- Preparation of PET film layers (3) (5)
면밀도 70g/㎡인 PET 필름층(3)(5)을 준비하였다.PET film layers (3) and (5) with an area density of 70 g/m2 were prepared.
- 아크릴점착층(2)(6) 제조- Manufacturing of acrylic adhesive layer (2) (6)
실리콘이 코팅된 이형지를 별도로 준비하여 실리콘이 코팅된 면에 아크릴 코폴리머 57중량부, 이세톤 10중량부, 에틸아세테이트 30중량부, 메틸알코올 3중량부, 난연제 20중량부 및 경화제 1중량부로 조성된 이크릴계 점착제를 면밀도 160g/㎠로 코팅하고 상기 코팅된 점착층 물질에 포함된 액상을 기화시켜 건조 후 80g/㎠아크릴점착층이 형성된 이형지를 제작하였다Prepare a separate release paper coated with silicone and add 57 parts by weight of acrylic copolymer, 10 parts by weight of isetone, 30 parts by weight of ethyl acetate, 3 parts by weight of methyl alcohol, 20 parts by weight of flame retardant, and 1 part by weight of hardener on the silicone-coated side. The acrylic adhesive was coated with an area density of 160g/cm2, the liquid contained in the coated adhesive layer material was vaporized, and after drying, a release paper with an 80g/cm2 acrylic adhesive layer was produced.
- PET 폼층(4) 제조- Production of PET foam layer (4)
PET 폼층(4)의 폐쇄형(Closed Structure)의 PET 폼층은 원료인 PET를 발포하기 전에 미리 130℃에서 건조하여 수분을 제거하여 사용하며, 압출기에 수분이 제거된 PET 100중량부에 대하여 가교제로 피로멜리트산 무수물 1중량부, 탄산칼슘 3중량부 및 산화방지제로 Irganox 1010(상품명) 0.1중량부를 투입하고, 혼합하면서 280℃로 가열하여 용융시킨 다음 수지용융물을 압출기에 투입하고 발포제 예를 들면 부탄가스를 주입하여 시트상으로 발포시켜 제조하였다.The closed structure PET foam layer of the PET foam layer (4) is used by drying the raw material PET at 130°C to remove moisture in advance before foaming, and is used as a crosslinking agent for 100 parts by weight of PET from which moisture has been removed in the extruder. Add 1 part by weight of pyromellitic anhydride, 3 parts by weight of calcium carbonate, and 0.1 part by weight of Irganox 1010 (brand name) as an antioxidant, heat to 280°C to melt while mixing, then put the resin melt into an extruder and add a foaming agent such as butane. It was manufactured by injecting gas and foaming it into a sheet shape.
제조된 폐쇄형(Closed Structure)의 PET 폼층(4)은 500Kg/㎡의 면밀도이다.The manufactured closed structure PET foam layer (4) has an area density of 500Kg/㎡.
- 표피층(1), 이면층(7)과 PET 필름층(3)(5)의 결합- Combination of the skin layer (1), the back layer (7) and the PET film layer (3) (5)
상기 표피층(1), 이면층(7)과 PET 필름층(3)(5) 사이에 아크릴점착층(2)(6)을 매개로 각각 가열하여 결합하여 결합체(a1)(a2)를 각각 제조하였다.The skin layer (1), the back layer (7), and the PET film layer (3) (5) are heated and bonded through the acrylic adhesive layer (2) (6) to prepare binders (a1) (a2), respectively. did.
- 결합체(a1)(a2)와 PET 폼층(4)의 결합- Combination of binder (a1) (a2) and PET foam layer (4)
상기 결합체(a1)(a2)의 PET 필름층(3)(5)이 상기 PET 폼층(4)과 대면시켜 적층시켜 자동차용 트렁크 러기지보드를 제조하였다.A trunk luggage board for an automobile was manufactured by stacking the PET film layers (3) and (5) of the combination (a1) (a2) facing the PET foam layer (4).
<실시예 2> <Example 2>
실시예 2의 PET 폼층(4) 면밀도를 600Kg/㎡로 하였고, 나머지는 상기 실시예 1과 같다.The area density of the PET foam layer (4) of Example 2 was set to 600Kg/m2, and the rest was the same as Example 1 above.
<비교예1><Comparative Example 1>
4층으로 적층 된 유리 섬유 매트 40 중량부에 폴리프로필렌(Polypropylene) 60 중량부를 함침시켜 GMT (Glass fiber mat thermoplastic)를 실시예 1,2의 ET 폼층(4)을 제외하고는 동일하게 제조하였다.GMT (Glass fiber mat thermoplastic) was manufactured in the same manner as in Examples 1 and 2, except for the ET foam layer (4), by impregnating 40 parts by weight of a 4-layer laminated glass fiber mat with 60 parts by weight of polypropylene.
<비교예 2><Comparative Example 2>
비교예 1의 GMT (Glass fiber mat thermoplastic)을 사용하고, PET 필름층(3)(5)의 면밀도 60g/㎡을 사용한 것을 제외하고는 비교예 1과 동일하게 제조하였다.It was manufactured in the same manner as Comparative Example 1, except that the GMT (Glass fiber mat thermoplastic) of Comparative Example 1 was used, and the PET film layer (3) (5) had an area density of 60 g/m2.
상기 <실시예 1,2>에서 제조된 트렁크 러지기 보드 시편에 대하여 기계적 특성인 굴곡탄성율과 굴곡강도을 시험하고 그 결과를 아래 [표 1]에 나타내었다.The mechanical properties of flexural elastic modulus and flexural strength were tested for the trunk slack board specimens manufactured in <Examples 1 and 2> above, and the results are shown in [Table 1] below.
수요처 요구하는 굴곡강도와 굴곡탄성율 하한인 120N/㎠ 이상, 500Mpa 이상을 만족하고 있음을 확인할 수 있었다.It was confirmed that the lower limits of flexural strength and flexural elasticity required by the customer, which were 120N/cm2 or more and 500Mpa or more, were satisfied.
본 발명에 따른 자동차용 트렁크 러기지보드의 폐쇄형(Closed Structure) PET 폼을 갖는 내장재가 기계적 강도가 우수하다는 것을 알 수 있다.It can be seen that the interior material having closed structure PET foam of the trunk luggage board for automobiles according to the present invention has excellent mechanical strength.
Claims (4)
중량이 50 ~ 100g/㎡인 아크릴점착층(2),
중량이 30 ~ 100g/㎡인 PET 필름층(3),
폐쇄형(Closed Structure)를 갖고 중량이 100 ~ 1,000Kg/㎡인 PET 폼층(4),
중량이 30 ~ 100g/㎡인 PET 필름층(5),
중량이 50 ~ 100g/㎡인 아크릴점착층(6),
PET 부직포로 이루어진 중량이 100 ~ 600g/㎡인 이면층(7)을 순차 적층하여 결합하는 것을 특징으로 하는 자동차용 트렁크 러기지보드.Epidermal layer (1) made of PET non-woven fabric and weighing 250 to 600 g/㎡,
Acrylic adhesive layer (2) weighing 50 to 100 g/m2,
PET film layer (3) with a weight of 30 to 100 g/m2,
PET foam layer (4) with a closed structure and a weight of 100 to 1,000 Kg/㎡,
PET film layer (5) with a weight of 30 to 100 g/m2,
Acrylic adhesive layer (6) weighing 50 to 100 g/m2,
A trunk luggage board for automobiles, characterized by sequentially stacking and combining back layers (7) made of PET non-woven fabric with a weight of 100 to 600 g/m2.
b). 중량이 30 ~ 100g/㎡인 PET 필름층(3)(5)을 각각 준비하는 제 2단계(S2),
c). PET 수지에 가교제, 산화방지제 및 충전제를 배합하여 용융시킨 수지용융물을 발포제와 함께 발포시켜 폐쇄 구조(Closed Structure)의 PET 폼을 제조하여 100 ~ 1,000Kg/㎡인 PET 폼층(4)을 준비하는 제 3단계(S3),
d). 상기 준비된 표피층(1)과 PET 필름층(3)을 아크릴접착층(2)을 매개로 결합체(a1)를 준비하는 제 4단계(S4),
e). 상기 준비된 이면층(7)과 PET 필름층(4)을 아크릴접착층(5)을 매개로 결합체(a2)를 준비하는 제 5단계(S5),
f). 상기 d)단계의 결합체(a1)과, 상기 e)단계의 결합체(a2)이 PET 폼층(4)의 상하면에 각각 대면하도록 적층하여 합지하는 제 6단계(S6)를 포함하는 것을 특징으로 하는 자동차용 트렁크 러기지보드의 제조방법. a). A first step (S1) of preparing a skin layer (1) made of PET nonwoven fabric with a weight of 250 to 600 g/m2 and a back layer (7) made of PET nonwoven fabric and weighing 100 to 600 g/m2, respectively.
b). A second step (S2) of preparing PET film layers (3) and (5) each weighing 30 to 100 g/m2,
c). A product that prepares a PET foam layer (4) of 100 ~ 1,000Kg/㎡ by mixing PET resin with a crosslinking agent, antioxidant, and filler and foaming the melted resin with a foaming agent to produce PET foam with a closed structure. Step 3 (S3),
d). A fourth step (S4) of preparing a combination (a1) of the prepared skin layer (1) and the PET film layer (3) using an acrylic adhesive layer (2),
e). A fifth step (S5) of preparing a combination (a2) of the prepared back layer (7) and the PET film layer (4) using an acrylic adhesive layer (5),
f). A car comprising a sixth step (S6) of stacking the combination (a1) of step d) and the combination (a2) of step e) so that they face the upper and lower surfaces of the PET foam layer (4), respectively. Manufacturing method of trunk luggage board.
PET 폼층(4)은 PET를 발포하기 전에 미리 130℃에서 건조하여 수분을 제거하여 사용한 후, 압출기에 수분이 제거된 PET 100중량부에 대하여 가교제로 피로멜리트산 무수물 1중량부, 탄산칼슘 3중량부 및 산화방지제 0.1중량부를 투입하고, 혼합하면서 280±5℃로 가열하여 용융시킨 다음 수지용융물을 압출기에 투입하고 발포제를 주입하여 시트상으로 발포시켜 제조되는 평균두께가 2.5 mm이고, 전체 셀의 약 97±1%가 폐쇄 셀(Closed Cell)이며, 평균 셀 수가 1㎟ 당 12±5개이고, 셀의 평균크기가 450±20㎛인 것을 특징으로 하는 자동차용 트렁크 러기지보드의 제조방법. In claim 3,
The PET foam layer (4) is used by drying at 130°C to remove moisture before foaming PET, then adding 1 part by weight of pyromellitic anhydride and 3 parts by weight of calcium carbonate as a crosslinking agent for 100 parts by weight of PET from which moisture was removed in an extruder. Add 0.1 part by weight of the resin and antioxidant, melt it by heating to 280 ± 5°C while mixing, then put the resin melt into an extruder, inject a foaming agent, and foam it into a sheet shape. The average thickness is 2.5 mm, and the total cell thickness is 2.5 mm. A method of manufacturing a trunk luggage board for automobiles, wherein approximately 97±1% are closed cells, the average number of cells is 12±5 per 1㎟, and the average cell size is 450±20㎛.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020220083601A KR20240007792A (en) | 2022-07-07 | 2022-07-07 | Car Trunk Luggage Board And Manufacturing Method Therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020220083601A KR20240007792A (en) | 2022-07-07 | 2022-07-07 | Car Trunk Luggage Board And Manufacturing Method Therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20240007792A true KR20240007792A (en) | 2024-01-17 |
Family
ID=89713438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020220083601A KR20240007792A (en) | 2022-07-07 | 2022-07-07 | Car Trunk Luggage Board And Manufacturing Method Therefor |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20240007792A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101811727B1 (en) | 2015-12-04 | 2017-12-26 | 한화첨단소재 주식회사 | Vehicles trunk floor |
-
2022
- 2022-07-07 KR KR1020220083601A patent/KR20240007792A/en not_active Application Discontinuation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101811727B1 (en) | 2015-12-04 | 2017-12-26 | 한화첨단소재 주식회사 | Vehicles trunk floor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101543600B1 (en) | Light-weight, multi-layered composite substrate and method of making the same | |
| US7255391B2 (en) | Twin-sheet thermoformed products | |
| KR102610544B1 (en) | Composite articles including films with a tie layer | |
| KR101916988B1 (en) | Article made of a multilayer composite material and preparation method thereof | |
| KR20150092078A (en) | Articles including high melt flow index resins | |
| KR100862308B1 (en) | The member for headliner on motor vehicles of multi-layer structure | |
| KR20060045363A (en) | Laminated member for automobile interior ceiling material | |
| KR101274748B1 (en) | Echo-friendly light weight multilayer structure and production method there of | |
| US11633939B2 (en) | Method for producing a planar composite component and composite component produced thereby | |
| US20080100082A1 (en) | Floor panel having a reinforcing structure in a vehicle | |
| KR101856521B1 (en) | Automotive interior material and method for manufacturing same | |
| KR20170026866A (en) | Method for manufacturing lightweight and high stiffness headlining of vehicle | |
| KR20240007792A (en) | Car Trunk Luggage Board And Manufacturing Method Therefor | |
| KR20180036056A (en) | Automotive interior material and method for manufacturing same | |
| KR102453898B1 (en) | package tray of a car having improved sound absorption and light weight and method for manufacturing thereof | |
| JP2002028997A (en) | Plate-shaped foamed molded item with skin | |
| KR102338005B1 (en) | Undercover for automobile and Preparing Method thereof | |
| KR20210021774A (en) | Composite material and manufacturing method for the same and manufacturing method of multi-layer structure for using the same | |
| KR20190059365A (en) | Light-weight headliner for vehicle | |
| KR20230142042A (en) | Trunk interior material for electric vehicle using single material and manufacturing method therefor | |
| KR20070040315A (en) | Sandwich panel | |
| KR20210146494A (en) | Composite material for automobile engine cover and engine underfloor and its manufacturing method | |
| KR20220126848A (en) | Lightweight composite material using closed structure PET foam or PP foam and its manufacturing method | |
| KR20220170439A (en) | Fiber-reinforced composite with improved mechanical strength and dimensional stability | |
| KR20230001186A (en) | Multiple layer noise absorbing material for vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E902 | Notification of reason for refusal |