KR20030057501A - Foamable filler composition of paste type for preventing noise of vehicles - Google Patents

Foamable filler composition of paste type for preventing noise of vehicles Download PDF

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KR20030057501A
KR20030057501A KR1020030038238A KR20030038238A KR20030057501A KR 20030057501 A KR20030057501 A KR 20030057501A KR 1020030038238 A KR1020030038238 A KR 1020030038238A KR 20030038238 A KR20030038238 A KR 20030038238A KR 20030057501 A KR20030057501 A KR 20030057501A
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weight
agent
filler
foaming
filler composition
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KR1020030038238A
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KR100615824B1 (en
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주후령
윤상용
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헨켈홍성주식회사
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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
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/06—Copolymers with styrene
    • 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
    • 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
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • 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
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • 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
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    • C08K3/22—Oxides; Hydroxides of metals
    • 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
    • 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
    • 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
    • C08K5/0025—Crosslinking or vulcanising agents; including accelerators
    • 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
    • C08K5/01—Hydrocarbons
    • 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
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
    • 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
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/21—Urea; Derivatives thereof, e.g. biuret
    • 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
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/22—Compounds containing nitrogen bound to another nitrogen atom
    • C08K5/23—Azo-compounds
    • 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
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • 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
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • C08K5/39—Thiocarbamic acids; Derivatives thereof, e.g. dithiocarbamates
    • C08K5/40—Thiurams, i.e. compounds containing groups
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • 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
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group

Abstract

PURPOSE: Provided is a foaming filler composition of paste type which is attached at filling-requiring site in car panel, and controls a noise of car by using insulation and absorption functions of sound. CONSTITUTION: The composition essentially comprises 10-25 wt% of polystyrene-co-butadiene as a foaming rubber, 5-20 wt% of polyvinyl chloride, 3-13 wt% of liquid isoprene rubber as an agent for imparting viscoelasticity and adhesion; and further comprises 2-8 wt% of zinc oxide as a curing accelerator, 0.2-1.2 wt% of acetylene black as a coloring reinforcement, 25-40 wt% of coated calcium carbonate as a filler, 1-5 wt% of tetramethylthiuramdisulfide as a curing agent, 0.1-0.8 wt% of dibenzyl thiazyl disulfide as a crosslinking agent, 3-16 wt% of urea as a foaming accelerator, 3-9 wt% of azodicarbonamide as a foaming agent, 8-18 wt% of dioctylphthalate as a plasticizer, and 7-13 wt% of aromatic oil as a processing oil.

Description

자동차의 소음예방용의 페이스트상의 발포성 충전제 조성물{Foamable filler composition of paste type for preventing noise of vehicles}Foamable filler composition of paste type for preventing noise of vehicles

본 발명은 폴리스티렌 부타디엔 고무(polystrylene-co-butadiene)및 폴리염화비닐수지(PVC:poly vinly chloride)와 액상 이소프렌 고무(Liquid isoprene rubber)를 흡음 및 차음에 의한 차량의 소음을 예방하기 위한 차량패널용 페이스트상의 발포성 충전제 조성물에 관한 것으로서, 특히 차량의 주행시 발생하는 소음의 제어를 위하여 자동차의 필라부(Pillar part)같은 차량의 실내쪽에 간편 용이하게 적용하여 흡차음(吸遮音) 및 접착성을 갖는 차량 소음예방용의 페이스트상의 발포성 충전제 조성물에 관한 것이다.The present invention is a vehicle panel for preventing the noise of the vehicle by sound absorption and sound insulation of polystyrene-co-butadiene (polystrylene-co-butadiene) and polyvinyl chloride (PVC) and liquid isoprene rubber (Liquid isoprene rubber) TECHNICAL FIELD The present invention relates to a paste-like foam filler composition, and particularly, for controlling noise generated when a vehicle is driven, a vehicle having a sound absorbing sound and an adhesive property by being easily applied to an interior side of a vehicle such as a pillar part of an automobile. The present invention relates to a paste-like foamable filler composition for noise prevention.

종래에는 원료고무로 이피디엠(EPDM:Ethylene propylene diene monomer)과 열가소성 고무에 각종 첨가제를 혼합하여 소음방지용 발포 충전제를 제조한후 그 충전제를 자동차 구조물의 공극내부에 충전하여 자동차 도장시 도장열에 의해 용해되어 부착되게 하므로서 차량 주행시 차량실내로 전달되는 소음 및 진동음을 제거 또는 예방하도록 되어 있으나, 이러한 소음방지용 충전제는 시트상으로 구성되어 있어서 수작업을 통하여 그 충전제 시트의 한쪽면 점착제층을 구조물의 공극 내부면에 직접 부착하도록 되어 있는데 이 작업은 작업자의 숙련도에 따라 부착코저하는 정확한 위치에 부착이 어렵고 부착이 안되는 부위가 발생하는 등의 문제가 있으며 또한 자동차가 도장건조로에 통과시에 용융 부착되게 하는 과정에서도 충전이 완전히 이루어지지 않는 문제점이 있었고, 또 자동차 패널에 부착시에는 일정공간이 필요하여 정확한 부착이 어렵고 따라서 자동차의 승차감 향상등 품질확보에도 문제점이 있었으며 수작업에 따른 작업 인원의 증가로 인하여 차량의 원가가 높아지는 문제점이 있었다.Conventionally, a variety of additives are mixed with EPDM (Ethylene propylene diene monomer) as a raw material rubber and thermoplastic rubber to prepare a foam filler for noise prevention, and then the filler is filled into the pores of the automobile structure and dissolved by painting heat when painting the automobile. Although the noise and vibration sound transmitted to the inside of the vehicle while driving the vehicle is to be removed or prevented, the noise preventing filler is composed of a sheet, so that the adhesive layer on one side of the filler sheet is manually formed by the manual work. This work is problematic in that it is difficult to attach at the exact position to be attached and according to the skill of the operator, and a part that cannot be attached occurs. Not fully charged This was, and is difficult to correct when attached to the vehicle attached to the panel requires a certain space, thus improving ride comfort of the car, such as quality assurance was also a problem due to an increase in the working personnel of the manual there is a problem in increasing the cost of the vehicle.

본 발명은 상기와 같은 종래의 소음방지용 충전제 시트의 결점을 개량한 것으로서, 페이스트 상태로 충전제 조성물을 형성하여 로보트를 이용하여 자동으로 자동차 패널의 공간에 정확하고 쉽게 도포할 수 있도록 하므로서 뛰어난 흡차음력과 접착성으로 인하여 탁월한 소음방지효과와 주행중 전 온도영역에서 높은 소음방지 효과를 얻도록 하기 위하여 폴리스티렌 부타디엔 고무와 열가소성 고무 및 수지를 주재로 하여 거기에 가황제, 발포제, 가공제재, 착색보강제, 충전제 및 가소제를 적정비율로 혼합하여 자동차 소음예방을 위한 페이스트상의 발포성 충전제 조성물을 얻고져 하는 것으로서 이를 첨부된 도면을 참조하면서 상세히 설명하면 다음과 같다.The present invention is to improve the drawbacks of the conventional noise preventing filler sheet as described above, by forming the filler composition in the paste state to automatically and accurately apply to the space of the automotive panel using a robot, excellent sound insulation and sound Due to the adhesive property, polystyrene butadiene rubber, thermoplastic rubber, and resin are mainly used to obtain excellent noise prevention effect and high noise prevention effect in the entire temperature range during driving, and vulcanizing agent, foaming agent, processing agent, coloring reinforcing agent, filler and The plasticizer is mixed at an appropriate ratio to obtain a paste-like foamable filler composition for preventing vehicle noise, which will be described in detail with reference to the accompanying drawings.

도 1 은 차체 패널에 본 발명 충전제를 도포할 부위를 나타낸 개요도.BRIEF DESCRIPTION OF THE DRAWINGS The schematic diagram which shows the site | part to apply this invention filler to a vehicle body panel.

도 2(a)(b) 는 차체 패널에 본 발명 충전제를 도포한 부분의 확대 단면도.(A) (b) is an expanded sectional view of the part which apply | coated this invention filler to a vehicle body panel.

* 도면 중 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

1a,1b,1c : 필라(Pillar)2 : 실사이드(Sill side)1a, 1b, 1c: Pillar 2: Sill side

3 : 휠하우스(Wheel house)4 : 루프레일(Roof rail)3: Wheel house 4: Roof rail

5 : 차체 프레임6 : 도포층5 Body Frame 6: Coating Layer

6' : 발포 및 경화후 탄성체6 ': elastomer after foaming and curing

본 발명은 발포성 고무인 폴리스티렌 부타디엔(polystrylene-co-butadiene) 10∼25중량%, 접착성 합성수지인 폴리염화비닐(PVC:poly vinly chloride) 5∼20중량%, 점탄성 및 접착성 부여제인 이소프렌고무(Liquid isoprene rubber) 3∼13중량%를 주재로하여 거기에 경화 촉진제로서 산화아연 2∼8중량%, 착색보강제로서 아세틸렌블랙(acetylene black) 0.2∼1.2중량%, 충전제로서 코팅된 탄산칼슘 25∼40중량%, 경화제로서 테트라메틸티우람디설파이드 1∼5중량%, 가교제로서 디벤질티아지디설파이드 0.1∼0.8중량%, 발포촉진제로서 우레아 3∼16중량%, 발포제로서 아조디카본아마이드 3∼9중량%, 가소제로서 디옥틸프탈레이트 8∼18중량%, 가공유로서 아로매틱오일 7∼13중량%를 첨가하여 자동차 소음예방용 발포성 충전제 조성물을 얻는다.The present invention is 10 to 25% by weight of polystyrene butadiene (foamable rubber), 5 to 20% by weight of polyvinyl chloride (PVC) as an adhesive synthetic resin, isoprene rubber (Liquid) as a viscoelastic and adhesive imparting agent isoprene rubber) with 3 to 13% by weight of zinc oxide as curing accelerator, 2 to 8% by weight of zinc oxide, 0.2 to 1.2% by weight of acetylene black as color enhancer, and 25 to 40% by weight of coated calcium carbonate as filler %, 1 to 5% by weight of tetramethylthiuram disulfide as a curing agent, 0.1 to 0.8% by weight of dibenzylthiazidisulfide as a crosslinking agent, 3 to 16% by weight of urea as a foaming accelerator, 3 to 9% by weight of azodicarbonamide as a blowing agent, 8 to 18% by weight of dioctylphthalate as a plasticizer and 7 to 13% by weight of aromatic oil as a processing oil are added to obtain a foamable filler composition for automobile noise prevention.

이상과 같이 구성되는 본 발명 자동차 소음예방용 발포성 충전제 조성물은 도1 및 도2에 도시된 바와같이 차체의 필라(pillar)(1a)(1b)(1c), 실사이드(sill side)(2), 휠하우스(wheel house)(3), 및 루프레일(Roof rail)(4)과 같은 차체 프레임(5)에 적용이 가능하고 그것들에 적용시에는 통상의 니더나 하이스피드믹서중 어느 하나로 교반하여 페이스트상으로 한후 자동차 차체 프레임(5)의 필요한 접합 부위에 도포 및 충전하여 도포층(6)을 형성한후 전착 및 중도와 상도 도장 건조로에서 140∼190℃의 온도에서 10∼30분간 차체가 통과되는 동안 가열에 의하여 발포 및 경화된 탄성체(6')가 형성되게 하므로써 차체프레임(5)의 간극에 강하게 밀착되어 충전되도록 하는 것이다.The foam filler composition for automobile noise prevention of the present invention configured as described above is a pillar (1a) (1b) (1c), the seal side (2) of the vehicle body as shown in Figs. , Wheel house (3), and roof rail (4) can be applied to the body frame (5), when applied to them, either by stirring with a conventional kneader or high speed mixer After forming the paste, apply and fill the required joints of the vehicle body frame 5 to form the coating layer 6, and then the vehicle body passes through the electrodeposition and the intermediate and top coat drying furnaces at a temperature of 140 to 190 ° C for 10 to 30 minutes. By forming the foamed and cured elastic body 6 'by heating during the process, it is to be closely adhered to the gap of the vehicle body frame 5 to be filled.

이상과 같은 본 발명 발포성 충전제 조성물에서 폴리스티렌 부타디엔 고무는 10중량% 미만인 경우 클로우즈드 셀(closed cell : 독립기포)의 형성이 어려워 발포체가 제대로 형성되지 못하며 25중량% 이상이면 발포체 형성이 억제되어 역시 발포율이 저하되는 문제점이 있을뿐 아니라 조성물의 경도가 높아지는 문제가 있고, 접착제인 폴리염화비닐 수지는 5중량% 미만이면 접착력과 발포율이 저하되며 20중량% 이상이면 점도가 상승하여 작업성 및 적도안정성이 저하되게된다.In the foam filler composition of the present invention as described above, when the polystyrene butadiene rubber is less than 10% by weight, it is difficult to form a closed cell (independent bubble), so that the foam is not properly formed. Not only has a problem that the rate is lowered, there is a problem that the hardness of the composition is increased, the adhesive and foaming rate of the polyvinyl chloride resin as an adhesive is less than 5% by weight, the viscosity is increased if more than 20% by weight workability and equator The stability will be reduced.

점탄성 부여겸 접착성을 부여하는 이소프렌고무는 3중량% 미만이면 점탄성 성질의 저하로 접착력이 저하되게 되며 13중량% 이상에서는 작업성이 저하되면서 유동성이 심하고 침출의 우려가 있으며, 경화 촉진제인 산화아연은 2중량% 미만이면 촉진효과가 저하되고 8중량% 이상이면 반응 촉진효과가 더 이상 향상되지 않게되며 착색제인 아세틸렌블랙은 0.2중량% 미만이면 보강성과 착색성이 저하되게 되고 1.2중량% 이상이면 분산이 잘 안되면서 경도의 상승으로 발포체의 체적향상을 저하시키게 되고 충전제인 코팅된 탄산칼슘은 25중량% 미만이면 본 발명 발포성 충전제의 성형성이 저하되어 그 충전제가 경화시에는 변형이 발생하며 40중량% 이상이면 발포성 충전제의 경도가 증가되면서 발포율이 낮아지는 문제가 있게된다.If isoprene rubber imparting viscoelasticity and adhesiveness is less than 3% by weight, the adhesive force is lowered due to a decrease in viscoelastic properties. At 13% by weight or more, workability is decreased, and fluidity is high, and there is a fear of leaching. If it is less than 2% by weight, the promoting effect is lowered. If it is more than 8% by weight, the reaction promoting effect is not improved any more. If the colorant acetylene black is less than 0.2% by weight, the reinforcement and coloring properties are lowered. It is difficult to reduce the volume improvement of the foam by increasing the hardness and when the coated calcium carbonate filler is less than 25% by weight, the moldability of the foamable filler of the present invention is lowered and deformation occurs when the filler is cured. If it is above, there is a problem that the foaming rate is lowered while the hardness of the expandable filler is increased.

경화제인 테트라메틸티우람설파이드는 2중량% 미만이면 가교가 이루어지지 않고 5중량% 이상이면 과다 경화에 의한 발포체 형성을 억제하는 문제가 있고, 가교제인 디벤질티아지디설파이드는 0.2중량% 미만이면 가교구조가 형성이 안되는 문제가 있고 0.8중량% 이상이면 발포반응전에 경화가 이루어져 발포체 형성을 억제시키는 문제가 있으며, 발포 촉진제인 우레아는 3중량% 미만이면 발포율이 낮아지고, 16중량% 이상이면 경화전 발포제가 분해되어 발포체의 형성이 저하되는 문제점이 있으며 발포제인 아조디카본아마이드는 3중량% 미만이면 발포율이 낮아지고, 9중량% 이상이면 과다 발포로 인해 본 발명 발포성 충전제의 충전불량 문제가 발생할 수 있고, 가소제인 디옥틸프탈레이트는 8중량% 미만이면 가공성과 토출성이 저하되는 문제가 있으며, 18중량% 이상이면 충전제가 많이 요구되면서 유동성이 증가되고 발포시 균일한 발포체 형성이 어려운 문제가 있으며, 가공유인 아로매틱오일은 고점도의 오일제품으로 7중량% 미만이면 발포후의 경도가 높아지고 점도의 상승과 저장안정성이 불안정해지게 되며 발포시 발포체의 크기가 작아지는 문제점이 있으며 13중량% 이상에서는 점도가 저하되어 가공성이 떨어지고, 유동성이 증가되게 되고 발포체의 크기가 커져서 흡차음성이 저하되고 따라서 소음제어 성능이 저하되는 문제가 발생하게 된다.If the tetramethylthiuram sulfide as a curing agent is less than 2% by weight, no crosslinking is formed, and if it is 5% by weight or more, there is a problem of suppressing foam formation due to excessive curing. If the dibenzylthiazidisulfide as a crosslinking agent is less than 0.2% by weight, it is crosslinked. If there is a problem that the structure is not formed, and if the weight is more than 0.8% by weight is cured before the foaming reaction, there is a problem that suppresses the formation of foam, urea, the foaming accelerator is less than 3% by weight, the foaming rate is lowered, if more than 16% by weight, curing When the foaming agent is decomposed, there is a problem that the formation of the foam is deteriorated. When the foaming agent azodicarbonamide is less than 3% by weight, the foaming rate is lowered. It may occur, if the plasticizer dioctylphthalate is less than 8% by weight there is a problem that workability and dischargeability is reduced, 18 If the amount is more than the amount, the filler is required to increase the fluidity and it is difficult to form a uniform foam during foaming, Aromatic oil is a high-viscosity oil product of less than 7% by weight, the hardness after foaming increases and the viscosity rises and The storage stability becomes unstable and there is a problem that the size of the foam decreases during foaming, and at 13 wt% or more, the viscosity decreases, the workability decreases, the fluidity increases, and the size of the foam increases, the sound absorbing and insulating soundness decreases, and thus the noise control performance This deterioration problem occurs.

이상과 같은 본 발명의 소음예방을 위한 자동차 패널의 내부 충전용 페이스트상의 발포성 충전제 조성물은 페이스트상태이므로 자동화 도포가 용이하며 고배율의 발포율과 우수한 접착력 및 낮은 열유동성으로 인하여 다양한 형태의 자동차 패널에 적용이 용이함은 물론 자동차의 차체 프레임(5)을 이루는 필라(1a)(1b)(1c), 실사이드(2), 휠하우스(3), 루프레일(4)등 공극내부에 적용이 가능하므로 차체의 소음을 제어하는 효과가 탁월하다 하겠다.Foam filler composition on the internal filling paste of the automotive panel for noise prevention of the present invention as described above is easy to apply automatically because of the paste state, and applied to various types of automotive panels due to the high magnification of foaming rate, excellent adhesion and low thermal fluidity This body can be applied to the interior of the air gap such as pillars 1a, 1b, 1c, seal side 2, wheelhouse 3, roof rail 4, etc., which form the vehicle body frame 5 of the automobile. The effect of controlling the noise is excellent.

Claims (2)

발포성 고무인 폴리스티렌 부타디엔(polystrylene-co-butadiene) 10∼25중량%, 접착성 합성수지인 폴리염화비닐(PVC:poly vinly chloride) 5∼20중량%, 점탄성 및 접착성 부여제인 이소프렌고무(Liquid isoprene rubber) 3∼13중량%를 주재로하고 거기에 경화 촉진제로서 산화아연 2∼8중량%, 착색보강제로서 아세틸렌블랙(acetylene black) 0.2∼1.2중량%, 충전제로서 코팅된 탄산칼슘 25∼40중량%, 경화제로서 테트라메틸티우람디설파이드 1∼5중량%, 가교제로서 디벤질티아지디설파이드 0.1∼0.8중량%, 발포촉진제로서 우레아 3∼16중량%, 발포제로서 아조디카본아마이드 3∼9중량%, 가소제로서 디옥틸프탈레이트 8∼18중량%, 가공유로서 아로매틱오일 7∼13중량%를 첨가함을 특징으로 하는 자동차 소음예방용 발포성 충전제 조성물.10-25 wt% of polystyrene-co-butadiene (foamable rubber), 5-20 wt% of polyvinyl chloride (PVC), an adhesive synthetic resin, liquid isoprene rubber (viscoelastic and adhesive imparting agent) Mainly 3 to 13% by weight, 2 to 8% by weight of zinc oxide as a curing accelerator, 0.2 to 1.2% by weight of acetylene black as a color enhancer, 25 to 40% by weight of calcium carbonate coated as a filler, curing agent 1 to 5% by weight of tetramethylthiuram disulfide as a crosslinking agent, 0.1 to 0.8% by weight of dibenzylthiazidisulfide as a crosslinking agent, 3 to 16% by weight of urea as a foaming accelerator, 3 to 9% by weight of azodicarbonamide as a blowing agent, and di 8 to 18% by weight of octyl phthalate and 7 to 13% by weight of aromatic oil as processed oil. 제1항과 같이, 구성되는 충전제 조성물을 니더나 하이스피드믹서로 교반하여 페이스트상으로 한후 자동차 차체프레임(5)의 접합부 위에 도포 및 충전하여 도포층(6)을 형성한후, 전착 및 중도와 상도 도장 건조로에서 140∼190℃의 온도에서 10∼30분간 차체가 통과하는 동안 가열에 의하여 발포 및 경화된 탄성체(6')로 경화되게함을 특징으로 하는 차체 패널 접합부에 페이스트상의 발포성 충전제의 충전방법.As described in claim 1, the filler composition is stirred with a kneader or a high speed mixer to form a paste, and then applied and filled on the joint of the vehicle body frame 5 to form a coating layer 6, followed by electrodeposition and middle degree. Filling the pasty foam filler into the car body panel junction, characterized in that it is cured into a foamed and cured elastomer 6 'by heating during passage of the car body for 10-30 minutes at a temperature of 140-190 ° C. in a top coat drying furnace. Way.
KR1020030038238A 2003-06-13 2003-06-13 Foamable filler composition of paste type for preventing noise of vehicles KR100615824B1 (en)

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Publication number Priority date Publication date Assignee Title
KR100537104B1 (en) * 2004-06-03 2005-12-16 주식회사 대흥알앤티 Cold-resistant polymer blend for absorbing shock comprising dioctylphthalate
KR102504154B1 (en) * 2021-08-27 2023-03-02 주식회사 스마트팜 Insulating panel and manufacturing method of the same

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KR101813535B1 (en) * 2016-08-08 2017-12-29 현대자동차주식회사 Noise reduction structure and installing method using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100537104B1 (en) * 2004-06-03 2005-12-16 주식회사 대흥알앤티 Cold-resistant polymer blend for absorbing shock comprising dioctylphthalate
KR102504154B1 (en) * 2021-08-27 2023-03-02 주식회사 스마트팜 Insulating panel and manufacturing method of the same

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