KR100288762B1 - Metallic plate reinforcement foam composition - Google Patents
Metallic plate reinforcement foam composition Download PDFInfo
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- KR100288762B1 KR100288762B1 KR1019980014613A KR19980014613A KR100288762B1 KR 100288762 B1 KR100288762 B1 KR 100288762B1 KR 1019980014613 A KR1019980014613 A KR 1019980014613A KR 19980014613 A KR19980014613 A KR 19980014613A KR 100288762 B1 KR100288762 B1 KR 100288762B1
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- C—CHEMISTRY; METALLURGY
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/10—Metal compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0016—Plasticisers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
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Abstract
Description
본 발명은 발포형 자동차 패널(Panel)과 같은 금속판 보강제 조성물에 관한 것으로서, 특히 자동차 차체의 도어(Door), 루프(Roof) 및 사이드 패널(Side Panel)등 금속판에 적용될 수 있는 발포형 금속판 보강제에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to metal sheet reinforcement compositions such as foamed automotive panels, and more particularly to foamed metal sheet reinforcements that can be applied to metal plates such as doors, roofs and side panels of automobile bodies. It is about.
종래에는 고무를 주성분으로 하는 부틸고무(Butyl rubber)계의 방진(제진), 방음기능을 갖는 금속판 보강제가 있었으나 그러한 보강제는 보강효과가 적을 뿐 아니라 그 보강제를 장시간 금속판에 적용하게 되면 자연적으로 열화되어 방진, 방음 기능이 저하되는 단점이 있었고 이에 본 출원인은 상기와 같은 종래 금속 보강제의 결점을 개량하여 본 출원인의 선발명 특허 제56756호에서 PVC를 주재로하여 점착부여제 및 충전제등을 혼합하여 “금속판 보강제를 제조하는 방법 및 그 보강제에의한 금속면 보강방법”을 게시한 바 있으나 그 금속판 보강제는 비발포형인데다가 경화시 에폭시 수지의 수축반응에 의해서 자동차의 외판(Panel)이 동시에 수축되어 변형(Dent)을 일으키게되는 결점이 있었고, 이외에 아스팔트계 제진재 즉 보강제가 있으나 보강성이나 제진성중 어느 한가지 특징만을 갖게되므로 적용상의 한계가 있는데다가 이 경우에는 보강제의 두께를 두껍게 하여야하므로 차량 중량이 증가되는 결점이 있었다.Conventionally, there has been a metal plate reinforcing agent having a butyl rubber-based dustproof (dust damping) and soundproofing function, which is mainly composed of rubber. However, such a reinforcing agent has a low reinforcing effect and naturally deteriorates when the reinforcing agent is applied to the metal plate for a long time. The present invention has a disadvantage in that dustproofing and soundproofing are deteriorated. Accordingly, the present inventors have improved the defects of the conventional metal reinforcing agent as described above, and in the applicant's patent application No. 56756, the main agent of PVC is mixed with a tackifier and a filler. Method of manufacturing metal plate reinforcement and metal surface reinforcement method by the reinforcing agent ”, but the metal plate reinforcing agent is non-foaming type, and when cured, the panel of the car shrinks and deforms due to shrinkage reaction of epoxy resin. (Dent) there was a defect that causes, in addition to the asphalt-based vibration damper, or reinforcing agent, Since only it has any one of the intrinsic features because the itneundeda a limit on the application in this case to be the thickness of the reinforcing agent had the disadvantage that the vehicle weight increased.
본 발명은 상기한 바와같은 자동차의 도어(Door), 루프(Roof), 사이드 패널(Side Panel)등의 금속판에 적용되던 종래의 비발포형 금속판 보강제, 부틸고무계 보강제(제진제) 또는 아스팔트계 보강제(제진제)등의 결점을 보완 및 개량하여 차체금속판의 굴곡부위까지에도 적용하여 제진, 방진 및 보강효과를 낼수있으면서 금속판에 부착시에는 박막화형으로 시공하여 발포에 의해 소정의 방진 및 보강효과를 발휘할 수 있도록 하므로서 작업성이 우수하고 원가는 절감되면서 기존의 비발포형 보강제(제진제)보다 방진성이 우수하고 차량 중량의 증가는 최소화되도록한 발포형 금속판 보강제를 제공코저하는 것으로서 이를 실예를 들어 상세히 설명하면 다음과 같다.The present invention is a conventional non-foamed metal sheet reinforcement, butyl rubber-based reinforcing agent (vibration damper) or asphalt-based reinforcement applied to metal plates such as doors, roofs, side panels, etc. of automobiles as described above. It can be applied to the bent part of the body metal plate by supplementing and improving the defects such as vibration damping agent. This is an example of providing a foamed metal sheet reinforcing agent that has excellent workability and cost, and is more dustproof than a conventional non-foaming type reinforcing agent (dust damper) and minimizes an increase in vehicle weight. It will be described in detail as follows.
제1도는 본 발명 발포형 금속판 보강제 쉬트의 단면도.1 is a cross-sectional view of the foamed metal sheet reinforcing sheet of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 구속제 2 : 조성물 쉬트1: Restriction agent 2: Composition sheet
3 : 이형지3: release paper
발포형 수지인 폴리염화비닐 수지(PVC)와 충전제인 탄산칼슘에 점착성인 조산비닐과 염화비닐 단량체로된 공중합수지를 디옥틸프탈레이트(DOP)와 디옥틸아디페이트(DOA)의 혼합물이나 DOP와 에폭시화 대두유의 혼합물 또는 디이소노닐 프탈레이트(DINP)와 DOP 또는 DOA중 어느하나와의 혼합물로된 혼합 가소제중에서 선택된 어느 하나의 혼합가소제와 혼합시켜서된 점찹부여제를 첨가하여서되는 금속판 보강제에 있어서, 상기 조성성분에 전체 조성물에 대하여 접착제 겸 보강제로서 NBR(Nitril Butadiene Rubber) 변성 에폭시 수지(바람직하게는 에폭시 당량 280인 것) 5∼15wt%와 비스페놀 A형 에폭시 수지(바람직하게는 에폭시 당량 184인 것) 5∼25wt%, 열안정제로서 K-Zn 혼합물 0.1∼5wt%, 착색제 겸 보강제 및 도전재로서 카본 블랙 0.2∼2wt%, 발포제로서 아조디카본아미드(Azodicarbonamide), N, N′-디니트로소펜타메틸렌테트라민(NN′-Dinitrosopentamethylene-tetramine), P, P′-옥시비스벤젠슬포닐히드라지드(PP′-Oxybisbenzensulfonylhydrazide)및 P-톨루엔슬포닐히드라지드(P-Toluenesulfonylhydrazide)중에서 선택된 1종이나 2종이상의 것 1.5∼5wt%, 발포조제로서 Zno, Zn-St혼합물, Pb-St혼합물, Ca-St혼합물 및 유리아(Urea)수지중에서 선택된 1종이나 2종이상의 것 0.3∼4wt%및 잠재성 경화제로서 디시안디아미드(Dicyandiamide) 0.1∼3wt%을 첨가한 것으로 구성된다.A copolymer of dioctylphthalate (DOP) and dioctyl adipate (DOA), or a mixture of dioctylphthalate (DOA), a copolymer of polyvinyl chloride resin (PVC), a foaming resin, and a vinyl chloride monomer, which is adhesive to calcium carbonate, a filler. A metal sheet reinforcing agent comprising the addition of a tackifier added by mixing with a mixed plasticizer selected from a mixture of hydrated soybean oil or a mixed plasticizer consisting of a mixture of diisononyl phthalate (DINP) and any one of DOP or DOA. NBR (Nitril Butadiene Rubber) modified epoxy resin (preferably epoxy equivalent of 280) and bisphenol A type epoxy resin (preferably epoxy equivalent of 184) as an adhesive and a reinforcing agent in the composition 5-25 wt%, 0.1-5 wt% K-Zn mixture as heat stabilizer, 0.2-2 wt% carbon black as colorant, reinforcing agent and conductive material, azodicarbonamide as blowing agent ( Azodicarbonamide), N, N'-Dinitrosopentamethylenetetramine (NN'-Dinitrosopentamethylene-tetramine), P, P'-Oxybisbenzensulfonylhydrazide and P-toluenesulfonylhydrazide One or two or more selected from (P-Toluenesulfonylhydrazide) 1.5-5 wt%, one or two selected from Zno, Zn-St mixture, Pb-St mixture, Ca-St mixture and Urea resin as foaming aid It is composed of 0.3 to 4 wt% of paper and 0.1 to 3 wt% of dicyandiamide as a latent curing agent.
상기에서 PVC, 점착부여제 및 충전제등은 본 발명 출원인의 상기한 선특허에서 이미 제시한 바와같은 것으로서, 본원에서 바람직하기는 PVC는 5∼25wt%, 충전제는 17-50wt%, 점착부여제 3-8wt%가 바람직하다.In the above, PVC, tackifiers and fillers are as already described in the above-mentioned prior patent of the present applicant, preferably 5 to 25 wt% of PVC, 17-50 wt% of filler, tackifier 3 -8 wt% is preferred.
상기한 조성물을 차체 금속판등에 적용하려면 상기 조성성분을 차례로 첨가 혼합하여 니더(Kneader) 또는 수평형 믹서에서 컴파운드(Compound)상의 조성물로한 다음 금속박판이나 글라스울등의 금속제에 일정두께로 펼쳐서 쉬트상으로한 다음 그 표면에 이형지로 보호하였다가 금속판에 부착시에 이형지만 제거하고 부착하면 된다.In order to apply the composition to a vehicle body metal plate, etc., the composition components are added and mixed in order to form a compound composition in a kneader or a horizontal mixer, and then unfolded in a sheet metal or glass wool to a certain thickness to form a sheet. After that, protect the surface with a release paper and then remove and release only the release paper when attaching it to the metal plate.
이러한 시공방법은 본 발명 출원인의 선특허에서 이미 공지된 기술에 의한 것이다.This construction method is based on a technique already known in the applicant's prior patents.
상기에서 NBR 변성 에폭시 수지의 첨가량은 5wt% 미만이거나 15wt%을 넘으면 접착후에 박리되기 쉽고 내충격성이 약한 결점이 있게 된다.When the amount of the NBR-modified epoxy resin is less than 5 wt% or more than 15 wt%, the NBR-modified epoxy resin is easily peeled off after adhesion and has a weak impact resistance.
또한 비스페놀 A형 에폭시 수지는 5wt% 미만인 경우는 철판에 대한 접착력이 저하될 우려가 있고, 25wt%를 넘을 경우는 접착강도의 상승으로 박리 및 균열등이 발생할 우려가 있다.In addition, when the bisphenol A epoxy resin is less than 5 wt%, the adhesive strength to the iron plate may be lowered. When the bisphenol A epoxy resin is more than 25 wt%, peeling and cracking may occur due to an increase in the adhesive strength.
상기에서 충전제인 탄산칼숨 첨가량은 17wt% 미만이거나 50wt% 이상이면 최종제품의 체적유지 및 가공성과 점착성이 저하될 수 있다.When the amount of added carbonic carbonate filler is less than 17wt% or more than 50wt%, the volume retention and processability and adhesiveness of the final product may be lowered.
또한 열안정제인 K-Zn 혼합물은 0.1wt% 미만이면 내열성이 감소될 수 있고 5wt%이상이면 접착력이 저하되고 안정성이 감소되는 결점이 있다.In addition, the thermal stabilizer K-Zn mixture may be less than 0.1wt% heat resistance, and if more than 5wt% adhesive strength is reduced and stability is reduced.
상기에서 폴리염화비닐 수지는 5wt% 미만을 사용하면 발포성과 접착강도가 높아지는 대신 내열성이 저하되어 제품의 노화가 빠르게 일어나는 결점이 있으며, 또한 착색제 겸 보강 및 도전제인 카본 블랙은 0.2wt% 미만이거나 2wt%이상이면 보강성 및 도전성이 저하되거나 초과될 우려가 있으며, 상기에서 발포제는 1.5wt% 미만이면 발포율이 저하되고 5wt%이상이면 강도겸 제진성 및 보강성이 저하될 우려가 있다.When the polyvinyl chloride resin is less than 5wt%, the foamability and adhesive strength are increased, but the heat resistance is lowered, so that the aging of the product occurs quickly. Also, the carbon black, which is a colorant, a reinforcement and a conductive agent, is less than 0.2wt% or 2wt%. If it is more than%, the reinforcement and conductivity may be lowered or exceeded. If the foaming agent is less than 1.5 wt%, the foaming rate may be lowered.
또한 발포조제는 상기 발포제의 분해온도를 낮추기 위한 것인데 0.3wt% 미만이면 발포제의 분해온도를 낮추지 못해 발포가 일어나지 않을 수 있으며 4wt% 이상이면 잔류 반응물에 의한 발포율 저하와 발포형태에 제한을 줄 우려가 있으며, 상기에서 점착부여제는 3wt% 미만이면 가공성이 저하되기 쉽고 8wt% 이상이면 가공성의 저하와 초기점착성이 저하되어 완전한 부착이 어려운 결점이 있게되며, 상기에서 점착부여제를 공중합수지와 혼합가소제의 혼합비율을 1:2로하고 혼합가소제 각각의 비율을 1:1로 하는것은 그 범위를 벗어나면 최종제품의 점착성이 약하거나 점도가 너무 강하여 금속판 표면에 도포하여 접착시키기 어려운 결점이 있으며, 상기에서 잠재성 경화제는 0.1wt% 미만을 사용하면 경화속도가 느리거나 않되게되어 경도 및 접착강도가 저하될 우려가 있으며, 3wt%를 넘으면 접착면의 박리와 저장안정성에서 침입도(侵入度)가 저하되게되는 문제가 있을 수 있다.In addition, the foaming aid is for lowering the decomposition temperature of the blowing agent, but less than 0.3wt% may not lower the decomposition temperature of the blowing agent may cause the foaming does not occur, and if more than 4wt% may reduce the foaming rate due to the residual reactants and limit the foaming form. If the tackifier is less than 3wt%, the workability is easy to be lowered, and if it is 8wt% or more, the workability is lowered and the initial tackiness is lowered, so that it is difficult to completely attach the tackifier, and the tackifier is mixed with the copolymer resin. If the ratio of the plasticizer is 1: 2 and the ratio of the mixed plasticizer is 1: 1, it is difficult to apply the adhesive on the surface of the metal plate because the adhesive of the final product is weak or the viscosity is too strong. If the latent curing agent is less than 0.1wt%, the curing speed is slow or not to decrease the hardness and adhesive strength There is a concern, and if it exceeds 3wt%, there may be a problem that the penetration is reduced in peeling of the adhesive surface and storage stability.
이하 상기한 각 조성성분들의 작용을 설명하면 다음과 같다.Hereinafter, the operation of each of the components described above will be described.
NBR 변성 에폭시 수지 및 비스페놀 A형 에폭시 수지는 유면 접착성 및 접착강도와 내충격성을 부여하고 탄산칼슘(CaCO3)은 충전재로서 최종제품의 체적을 조절하며, 열안정제인 K-Zn 혼합물은 열안정성과 발포제 분해촉진 효과를 주며 폴리염화비닐(PVC)은 발포성이 있으므로 발포제에 의해 발포되어 체적을 증가시키면서 최종제품에 경량성 및 내충격(재진)성을 부여하고, 카본블랙(Carbon black)은 착색 및 보강성과 도전성을 동시에 부여하게되고 발포제는 자동차 생산라인에서 차체 도장후 열경화과정에서 열에 의해 PVC에 발포성을 부여하며, 발포조제는 발포제가 낮은 온도(약 170℃이하)에서 분해되도록 분해온도를 저하시키는 역할을 하며(보통은 200℃이상에서 발포), 초산비닐 단량체와 염화비닐 단량체의 공중합수지를 혼합가소제와 혼합하여서된 점착부여제는 제품의 가공성과 점착성을 부여하게되며, 잠재성 경화제인 디시안아미드는 제품을 상온 보관시 침입도가 급격히 저하되지 않게 하기위한 것이다.NBR-modified epoxy resin and bisphenol-A epoxy resin provide oil adhesion, adhesive strength and impact resistance, and calcium carbonate (CaCO 3 ) is a filler to control the volume of the final product, and the thermal stabilizer K-Zn mixture is thermally stable. And polyvinyl chloride (PVC) is foamable because it is foamed by foaming agent to increase the volume and give light weight and impact resistance (resistance) to the final product, and carbon black is colored and The reinforcement and conductivity are given simultaneously, and the foaming agent gives foamability to the PVC by heat during the heat curing process after painting the car body in the automobile production line, and the foaming aid lowers the decomposition temperature so that the foaming agent decomposes at a low temperature (about 170 ° C or less). (Usually foamed at 200 ℃ or higher), and the cohesion of the copolymerized resin of vinyl acetate monomer and vinyl chloride monomer with mixed plasticizer The imparting agent imparts the processability and tackiness of the product, and dicyanamide, a latent curing agent, is intended to prevent the penetration of the product rapidly when stored at room temperature.
[실시예]EXAMPLE
초산비닐과 염화비닐 단량체의 공중합 수지 4kg을 DOP와 DOA 각 4kg씩을 혼합하여서된 혼합가소제 8kg과 혼합 용융시켜서된 점착부여제 12kg을 니더(Kneader)에 투입하고 거기에 착색제겸 보강제 및 도전제로서 카본 블랙 2kg, 접착제겸 보강제로서 NBR 변성 에폭시 수지 20kg과 비스페놀 A형 에폭시 수지 30kg, 충전제로서 탄산칼슘 80kg, 열안정제로서 K-Zn혼합물 6kg, 발포성수지로서 PVC 수지32kg, 발포제로서 아조디카본아미드 8kg, 발포조제로서 Zn-St혼합물 6kg 및 잠재성 경화제로서 디시안디아미드 4kg을 차례로 투입한 후 교반하여 200kg의 금속판 보강제 조성물을 얻었다.4kg of vinyl acetate and vinyl chloride monomer is mixed with 8kg of mixed plasticizer by mixing 4kg of DOP and DOA, and 12kg of tackifier is added to Kneader, and carbon is added as a colorant, reinforcing agent and conductive agent. 2kg black, 20kg NBR modified epoxy resin and 30kg bisphenol A epoxy resin as adhesive and reinforcing agent, 80kg calcium carbonate as filler, 6kg K-Zn mixture as heat stabilizer, 32kg PVC resin as foamable resin, 8kg aszodicarbonamide as foaming agent, 6 kg of a Zn-St mixture as a foaming aid and 4 kg of dicyandiamide as a latent curing agent were sequentially added, followed by stirring to obtain a 200 kg metal plate reinforcement composition.
상기 조성성분의 배합순서는 상기 발명의 구성에서와 같은 순서대로 해도 되지만 상기 순서대로 하는 것이 바람직하게 혼련교반이 되었다.The mixing order of the above-mentioned components may be in the same order as in the constitution of the present invention, but it is preferably kneading and stirring.
상기에서 얻어진 금속판 보강제 조성물을 이용하여 제1도에 도시된 바와같이 일면은 금속박판 또는 글라스 울등의 구속재(1)에 일정두께의 쉬트(2)상으로 펼쳐서 합지하고 다른일면에는 이형지(3)로 상기 조성물의 쉬트(2)를 보호하였다가 자체 전착도장 건조시에 한쪽면의 이형지(3)를 제거한 후 보강할 자동차 차체문짝내에 쉬트면을 부착시킨 후 자동차 생산공정중에 150∼190℃의 온도로 약15∼40분간에 걸쳐 가열하는 전착도장건조중에 발포되게한 결과 본 발명 보강제의 조성물(2)이 가열에 의해 경화됨과 동시에 발포되어 차체문짝 내면에 강하게 밀착(접착)되어 자체 중량에는 크게 영향을 주지 않으면서 강한 충격이나 롤링에도 박리되기나 균열됨이 없이 강력한 보강 및 제진(방진) 효과를 나타냈다.As shown in FIG. 1, the metal plate reinforcing agent composition obtained above is spread on a sheet 2 of a certain thickness to a restraint material 1 such as a metal thin plate or glass wool, and the other side is a release paper 3. The sheet 2 of the composition was protected, and then the release paper 3 on one side was removed during self-deposition coating and the sheet surface was attached to the door of the car body to be reinforced. As a result of foaming during electrodeposition coating drying heated for about 15 to 40 minutes, the composition (2) of the reinforcing agent of the present invention was cured by heating and was foamed and strongly adhered to the inner surface of the vehicle door, thereby greatly affecting its own weight. It showed strong reinforcement and vibration damping effect without delamination or cracking even in strong impact or rolling without giving any effect.
이상과 같이 구성되는 본 발명 발포형 보강제 조성물로된 쉬트를 자동차의 후드(Hood), 도어(Door), 루프(Roof), 플로어 패널(Floor Panel), 쿼터패널(Quarter Panel)등에 보강성 소재로서 얇게 점착하였다가 별도의 가열 경화 공정을 그치않고 자동차의 전착 도장 건조로내에서 전착도장 건조열에 의하여 자동으로 접착 및 발포경화되게 하므로써 보강, 제진효과 및 차체의 중량을 크게 증가시키지 않는 효과가 있으며 따라서 차체 철판의 박판화로 인해 원가절감 및 연비절감의 효과도 갖게되고 모양도 다양한 형태로 할 수 있어서 평면과 굴곡부위 등 어떤 필요부위에도 선택적으로 적용할 수 있는 특징이 있다.Sheets made of the foamed reinforcement composition of the present invention configured as described above are used as reinforcing materials in hoods, doors, roofs, floor panels, quarter panels, etc. of automobiles. It adheres thinly and does not stop the separate heat curing process, but it is automatically bonded and foam hardened by electrodeposition coating drying heat in the electrodeposition coating drying furnace of automobiles, so it does not increase reinforcement, vibration damping effect and the weight of the car body. Due to the thinness of the steel sheet, it has the effect of cost reduction and fuel economy, and can be made in various forms, so that it can be selectively applied to any necessary part such as flat and curved parts.
특히 본 발명의 조성물 쉬트는 기존의 비발포형 보강제가 가열 경화시에 휨강도의 불균형으로 인하여 차체금속판에 휨(변형)(Dent)현상을 나타내는것과는 달리 본 발명 조성물로된 쉬트는 그런 결점이 완전히 해소되게 된 것이다.In particular, the composition sheet of the present invention, unlike the existing non-foamable reinforcing agent exhibits a deflection (Dent) phenomenon in the body metal plate due to the unbalance of the bending strength at the time of heat curing, the sheet of the composition of the present invention completely eliminates such defects It is.
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KR20010011778A (en) * | 1999-07-30 | 2001-02-15 | 정몽규 | Expandable reinforcement pad for automative panel |
KR100420499B1 (en) * | 2001-07-27 | 2004-03-02 | 신재섭 | Epoxy resin for PCB |
KR100479236B1 (en) * | 2001-11-30 | 2005-03-30 | 이강수 | Sponge sheet having patterns and method for preparing same |
KR100510580B1 (en) * | 2002-10-12 | 2005-08-31 | 헨켈코리아 주식회사 | Reinforcing agent for car structures and its applicating method |
KR100512274B1 (en) * | 2002-10-12 | 2005-09-05 | 헨켈코리아 주식회사 | Method reinforcing body structures of cars with non-viscosity reinforcing agent |
KR100510579B1 (en) * | 2002-10-12 | 2005-08-31 | 헨켈코리아 주식회사 | Tacky reinforcing product for reinforcing structures of cars |
KR100600098B1 (en) * | 2004-07-22 | 2006-07-13 | 헨켈코리아 주식회사 | Reinforcing composition of metalic panel |
KR100648648B1 (en) * | 2005-10-14 | 2006-11-23 | 헨켈코리아 주식회사 | Sheet composition and its sheet for increaing stifness and antivibration of vehicle body |
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