KR100615824B1 - 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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KR100615824B1
KR100615824B1 KR1020030038238A KR20030038238A KR100615824B1 KR 100615824 B1 KR100615824 B1 KR 100615824B1 KR 1020030038238 A KR1020030038238 A KR 1020030038238A KR 20030038238 A KR20030038238 A KR 20030038238A KR 100615824 B1 KR100615824 B1 KR 100615824B1
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parts
weight
filler
paste
filler composition
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KR20030057501A (en
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주후령
윤상용
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헨켈코리아 주식회사
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Abstract

본 발명은 차음 및 흡음기능에 의하여 자동차의 소음을 예방하는 페이스트상 발포성 충전제 조성물에 관한 것으로, 자동차 패널의 충전이 필요한 부위에 도포하여 차음 및 흡음 성능을 극대화할 수 있는 페이스트상의 차량 소음 예방용 충전제 조성물에 관한 것이다.The present invention relates to a paste-like foam filler composition for preventing the noise of the vehicle by the sound insulation and sound-absorbing function, the paste-shaped vehicle noise preventive filler that can be applied to the area that needs to be filled in the vehicle panel to maximize the sound insulation and sound absorption performance It relates to a composition.

폴리스티렌 부타디엔 수지 및 폴리염화비닐 수지와 이소프렌 고무를 기본재료로 하여 충전제로서 코팅된 탄산칼슘과 경화촉진제 및 발포제 가소제등을 소정의 비율로 혼합하여, 통상적인 니더나 하이스피드 믹서중 어느 하나로 고르게 분산시킨뒤 배합시 혼입된 공기에 의해 기포등을 형성하지 않도록 감압하에서 교반하여 공기와 수분이 제거된 발포성 페이스트상 충전제 조성물을 얻는 것으로서 이와같이 얻어진 충전제 조성물은 수동캐트리지나 정량공급장치를 가진 펌프노즐을 이용하여 필요한 자동차 패널에 간편하게 도포하여 충전제로서 사용할 수 있게한 것이다.Polycarbonate butadiene resin, polyvinyl chloride resin, and isoprene rubber are used as base materials, and calcium carbonate coated as a filler, a curing accelerator, a foaming agent plasticizer, and the like are mixed in a predetermined ratio, and uniformly dispersed in either a conventional kneader or a high speed mixer. After mixing, the mixture is stirred under reduced pressure so as not to form bubbles by air mixed in the air to obtain an expandable paste-filled filler composition from which air and moisture are removed. Thus, the filler composition obtained by using a pump nozzle having a manual cartridge or a metering device is used. It can be easily applied to the necessary car panel to be used as a filler.

Description

페이스트상의 차량 소음예방용 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

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 프레임 6 : 도포층5: body frame 6: coating layer

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

본 발명은 액상 폴리스티렌 부타디엔 고무(polystrylene-co-butadiene)및 폴리염화비닐수지(PVC:poly vinly chloride)와 액상 이소프렌 고무(Liquid isoprene rubber)를 흡음 및 차음에 의해 차량의 소음을 예방하기 위한 페이스트상의 차량소음예방용 발포성 충전제 조성물에 관한 것으로서, 특히 차량의 주행시 발생하는 소음의 제어를 위하여 자동차의 필라부(Pillar part)와 같은 차량의 실내쪽에 간편 용이하게 적용하여 흡차음(吸遮音) 및 접착성을 갖게 하는 페이스트상의 차량 소음예방용 발포성 충전제 조성물에 관한 것이다.The present invention is a paste-like for preventing the noise of the vehicle by the sound absorption and sound insulation of liquid polystyrene butadiene (polystrylene-co-butadiene) and polyvinyl chloride (PVC) and liquid isoprene rubber (Liquid isoprene rubber) The present invention relates to a foam filler composition for preventing vehicle noise, and in particular, to control noise generated when driving a vehicle, by easily and easily applying to interior parts of a vehicle such as pillar parts of an automobile, The present invention relates to a paste-like foamable filler composition for preventing vehicle noise.

종래에는 원료고무로 이피디엠(EPDM;Ethylene Propolene Diene Monomer)과 열가소성 고무에 각종 첨가제를 혼합하여 소음방지용 발포 충전제를 제조한 후 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 자동차의 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 Propolene Diene Monomer) and thermoplastic rubber as raw material 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 car. 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 In addition, there is a problem in securing the quality, such as improving the ride comfort of the car, because it requires a certain space when attaching to the car panel, and the cost of the vehicle increases due to the increase in the number of workers by manual work.

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, 가공조제, 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 improves the drawbacks of the conventional noise preventing filler sheet as described above, by forming the filler composition in a paste state, and by using a robot to automatically and accurately apply to the space of the automobile panel, excellent sound absorption and sound insulation In order to get excellent noise prevention effect and high noise prevention effect in all temperature ranges while driving, polystyrene butadiene rubber, thermoplastic rubber and resin are mainly used as vulcanizing agent, foaming agent, processing aid, coloring reinforcing agent, filler. And a plasticizer is mixed at an appropriate ratio to obtain a paste-like foamable filler composition for preventing vehicle noise as described in detail with reference to the accompanying drawings as follows.

경화촉진제인 산화아연, 착색보강제인 아세틸렌블랙, 충전제인 코팅된 탄산칼슘 및 가공유인 아로매틱오일이 첨가되는 페이스트상의 자동차 소음예방용 발포성 충전제 조성물에 있어서,
상기 발포성 충전제 조성물에 대하여 발포성 고무인 폴리스티렌 부타디엔(polystrylene-co-butadiene) 10∼25중량부와, 접착성 합성수지인 폴리염화비닐(PVC:poly vinly chloride) 5∼20중량부와, 점탄성 및 접착성 부여제인 이소프렌고무(Liquid isoprene rubber) 3∼13중량부와, 경화제로서 테트라메틸티우람디설파이드 1∼5중량부와, 가교제로서 디벤질티아지디설파이드 0.1∼0.8중량부와, 발포제로서 아조디카본아마이드 3∼9중량부와, 발포촉진제로서 우레아 3∼16중량부, 상기 PVC용 가소제로서 디옥틸프탈레이트 8∼18중량부를 첨가하여 페이스트상의 차량 소음예방용 발포성 충전제 조성물을 얻는다.In a paste-like foaming filler composition for automobile noise prevention, wherein zinc oxide as a curing accelerator, acetylene black as a color enhancer, coated calcium carbonate as a filler, and aromatic oil as a processing oil are added,
10 to 25 parts by weight of polystyrene-co-butadiene (foamable rubber), 5 to 20 parts by weight of polyvinyl chloride (PVC), an adhesive synthetic resin, and viscoelasticity and adhesion to the foamable filler composition 3 to 13 parts by weight of liquid isoprene rubber, 1 to 5 parts by weight of tetramethylthiuram disulfide as a curing agent, 0.1 to 0.8 parts by weight of dibenzylthiazidisulfide as a crosslinking agent, and azodicarbonamide 3 as a blowing agent. ˜9 parts by weight, 3 to 16 parts by weight of urea as a foaming accelerator, and 8 to 18 parts by weight of dioctylphthalate as the plasticizer for PVC are added to obtain a paste-like foam filler for vehicle noise prevention.

이상과 같이 구성되는 본 발명 페이스트상의 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 접합부위에 도포 및 충전하여 도포층(6)을 형성한 후 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.As shown in Fig. 1 and Fig. 2, the filler-like foamable filler composition for automobile noise prevention of the present invention constituted as described above is a pillar (1a) (1b) (1c), a seal side ( 2) applicable to body frame 5, such as wheel house 3 and roof rail 4, and when applied to them, using either a conventional kneader or a high speed mixer. After stirring and forming a paste, it is applied and filled to the required joints of the vehicle body frame 5 to form a coating layer 6, and then the body is subjected to an electrodeposition, a medium and a top coat drying furnace at a temperature of 140 to 190 ° C for 10 to 30 minutes. The foamed and cured elastic body 6 'is formed by heating during the passage so as to be in close contact with the gap of the vehicle body frame 5 and to be filled.

이상과 같은 본 발명 발포성 충전제 조성물에서 폴리스티렌 부타디엔 고무는 차체 프레임에 도포하기에 알맞는 페이스트상으로 하기가 좋고, 또한 열에 의해 쉽게 발포되므로 경량의 발포성 충전제 조성물을 얻을 수 있는 것이 특징으로서 이 물질의 첨가량은 10중량부 미만인 경우 클로우즈드 셀(closed cell : 독립기포)의 형성이 어려워 발포체가 제대로 형성되지 못하며, 25중량부 이상이면 발포체 형성이 억제되어 역시 발포율이 저하되는 문제점이 있을뿐 아니라 조성물의 경도가 높아지는 문제가 있고, 접착제인 폴리염화비닐 수지는 상기 폴리스틸렌 부타디엔고무의 취약한 접착력을 보강하여 차체 프레임에 도포시 강력한 접착력을 부여하게 되는 것으로서 그 첨가량은 5중량부 미만이면 접착력과 발포율이 저하되며 20중량부 이상이면 점도가 상승하여 작업성 및 점도안정성이 저하되게 된다.The polystyrene butadiene rubber in the foamable filler composition of the present invention as described above is preferably in the form of a paste suitable for being applied to a vehicle body frame, and is easily foamed by heat so that a lightweight foamable filler composition can be obtained. If less than 10 parts by weight of the closed cell (closed cell) is difficult to form a foam is not properly formed, if more than 25 parts by weight of the foam formation is inhibited and also the foaming rate is lowered as well as the composition of the composition There is a problem that the hardness is increased, the polyvinyl chloride resin as an adhesive is to strengthen the weak adhesive force of the polystyrene butadiene rubber to give a strong adhesive force when applied to the body frame, when the addition amount is less than 5 parts by weight adhesion and foaming rate is lowered More than 20 parts by weight, the viscosity rises The woman workability and viscosity stability is to be reduced.

점탄성 부여겸 접착성을 부여하는 이소프렌고무는 상기 폴리스티렌부타디엔고무와 폴리염화비닐수지에서 부족한 점탄성과 점착성을 부여하는 것으로서 그 첨가량은 3중량부 미만이면 점탄성의 저하로 접착력이 저하되게 되며, 13중량부 이상에서는 작업성이 저하되면서 유동성이 심하고 침출의 우려가 있으며, 상기에서 공지공용되고 있는 물질들의 첨가량을 참고로 예시하면, 경화 촉진제인 산화아연은 2 중량부 미만이면 촉진효과가 저하되고 8중량부이상이면 반응 촉진효과가 더 이상 향상되지 않게 되며, 착색제인 아세틸렌블랙은 0.2중량부 미만이면 보강성과 착색성이 저하되게 되고 1.2중량부 이상이면 분산이 잘 안되면서 경도의 상승으로 발포체의 체적향상을 저하시키게 되고 충전제인 코팅된 탄산칼슘은 25중량부 미만이면 본 발명 발포성 충전제의 성형성이 저하되어 그 충전제가 경화시에는 변형이 발생하며 40중량부 이상이면 발포성 충전제의 경도가 증가되면서 발포율이 낮아지는 문제가 있게 된다.
경화제인 트라메틸티우람설파이드는 2중량부 미만이면 가교가 이루어지지 않고 5중량부 이상이면 과다 경화에 의한 발포체 형성을 억제하는 문제가 있고, 가교제인 디벤질티아지디설파이드는 0.2중량부 미만이면 가교구조가 형성이 안되는 문제가 있고 0.8중량부 이상이면 발포반응전에 경화가 이루어져 발포체 형성을 억제시키는 문제가 있으며, 발포촉진제는 우레아는 3중량부 미만이면 발포율이 낮아지고, 16중량부 이상이면 경화전 발포제가 분해되어 발포체의 형성이 저하되는 문제점이 있으며 발포제인 아조디카본아마이드는 3중량부 미만이면 발포율이 낮아지고, 9중량부 이상이면 과다 발포로 인해 본 발명 발포성 충전제의 충전불량 문제가 발생할 수 있고, 가소제인 디옥틸프탈레이트는 8중량부 미만이면 가공성과 토출성이 저하되는 문제가 있으며, 18중량부 이상이면 충전제가 많이 요구되면서 유동성이 증가되고 발포시 균일한 발포체 형성이 어려운 문제가 있다.
또한 가공유인 프로세스오일이나 아로매틱오일은 고점도의 오일제품으로 7중량부 미만이면 발포후의 경도가 높아지고 점도의 상승과 저장안정성이 불안정해지게 되며 발포시 발포체의 크기가 작아지는 문제점이 있으며, 13중량부 이상에서는 점도가 저하되어 가공성이 떨어지고, 유동성이 증가되게되고 발포체의 크기가 커져서 흡차음성이 저하되고 따라서 소음제어 성능이 저하되는 문제가 발생하게 된다.Isoprene rubber imparting viscoelasticity and adhesiveness imparts viscoelasticity and adhesiveness insufficient in the polystyrene butadiene rubber and polyvinyl chloride resin. If the amount is less than 3 parts by weight, the adhesive force is lowered due to viscoelasticity deterioration, and 13 parts by weight In the above, as the workability is lowered, the fluidity is severe and there is a fear of leaching. For example, with reference to the addition amount of the materials commonly known above, zinc oxide, which is a curing accelerator, is less than 2 parts by weight, and the promoting effect is lowered. If it is above, the reaction promoting effect will not be improved any more. If the colorant acetylene black is less than 0.2 parts by weight, the reinforcement and coloring properties will be lowered. If it is more than 1.2 parts by weight, the dispersion will not be good. And the coated calcium carbonate filler is less than 25 parts by weight of the present invention foamable The moldability of the premises is decreased as the filler, the strain generated during curing, and increasing the hardness of the foamed filler is above 40 parts by weight it is possible the problem that the foaming rate decreases.
If the crosslinking agent is less than 2 parts by weight of tramethylthiuram sulfide, crosslinking does not occur, and if it is 5 parts by weight or more, there is a problem of suppressing foam formation due to excessive curing. If the crosslinking agent of dibenzylthiazidisulfide is less than 0.2 part by weight, crosslinking If the structure is not formed, there is a problem that the cured is formed before the foaming reaction if it is more than 0.8 parts by weight, the foaming accelerator is less than 3 parts by weight of the urea foaming rate is lowered, if more than 16 parts by weight of curing When the foaming agent is decomposed, there is a problem in that the formation of the foam is deteriorated, and the foaming agent azodicarbonamide is less than 3 parts by weight, and the foaming rate is lowered. If the plasticizer dioctyl phthalate is less than 8 parts by weight, there is a problem that workability and dischargeability is reduced Was, 18 weight parts or more is as filler intensive increase in fluidity, and it is difficult to uniformly form a foam during the foaming problem.
In addition, process oil or aromatic oil, which is a processing oil, is a high-viscosity oil product. If less than 7 parts by weight, the hardness after foaming increases, the viscosity rises and the storage stability becomes unstable, and the foam size decreases during foaming. In the abnormality, the viscosity is lowered, the workability is lowered, the fluidity is increased, and the size of the foam is increased, so that the sound absorbing and insulating sound is lowered, and thus the noise control performance is lowered.

삭제delete

이상과 같은 본 발명의 소음예방을 위한 차량 패널의 내부 충전용 페이스트상의 소음예방용 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 공극내부 어디에도 적용이 가능하므로 차체의 소음을 제어하는 효과가 탁월하다 하겠다.The noise preventive foaming filler composition on the internal filling paste of the vehicle panel for noise prevention of the present invention as described above is easy to apply automatically because of the paste state, various types of automobiles due to the high magnification foam rate, excellent adhesion and low thermal fluidity It is not only easy to apply to the panel, but also to the interior of the air gap such as pillars 1a, 1b, 1c, seal side 2, wheelhouse 3, roof rail 4, etc. Since it is possible to control the noise of the car body is excellent.

Claims (2)

경화촉진제인 산화아연, 착색보강제인 아세틸렌블랙, 충전제인 코팅된 탄산칼슘 및 가공유인 아로매틱오일이 첨가되는 페이스트상의 자동차 소음예방용 발포성 충전제 조성물에 있어서, In a paste-like foaming filler composition for automobile noise prevention, wherein zinc oxide as a curing accelerator, acetylene black as a color enhancer, coated calcium carbonate as a filler, and aromatic oil as a processing oil are added, 상기 발포성 충전제 조성물에 대하여 발포성 고무인 폴리스티렌 부타디엔(polystrylene-co-butadiene) 10∼25중량부와, 접착성 합성수지인 폴리염화비닐(PVC:poly vinly chloride) 5∼20중량부와, 점탄성 및 접착성 부여제인 이소프렌고무(Liquid isoprene rubber) 3∼13중량부와 경화제로서 테트라메틸티우람디설파이드 1∼5중량부와, 가교제로서 디벤질티아지디설파이드 0.1∼0.8중량부를 첨가하고, 발포제로서 아조디카본아마이드 3∼9중량부와, 발포촉진제로서 우레아 3∼16중량부, 상기 PVC용 가소제로서 디옥틸프탈레이트 8∼18중량부를 첨가함을 특징으로 하는 페이스트상의 차량 소음예방용 발포성 충전제 조성물.10 to 25 parts by weight of polystyrene-co-butadiene (foamable rubber), 5 to 20 parts by weight of polyvinyl chloride (PVC), an adhesive synthetic resin, and viscoelasticity and adhesion to the foamable filler composition 3 to 13 parts by weight of Jane isoprene rubber, 1 to 5 parts by weight of tetramethylthiuram disulfide as a curing agent, and 0.1 to 0.8 parts by weight of dibenzylthiazidisulfide as a crosslinking agent, and azodicarbonamide 3 as a blowing agent. -9 parts by weight, 3 to 16 parts by weight of urea as a foaming accelerator, and 8 to 18 parts by weight of dioctylphthalate as the plasticizer for PVC is added. 제1항과 같이, 구성되는 충전제 조성물을 니더나 하이스피드믹서로 교반하여 페이스트상으로 한후 자동차 차체프레임(5)의 접합부위에 도포 및 충전하여 도포층(6)을 형성한 후, 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 차량 소음예방용 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 at the joint portion of the vehicle body frame 5 to form an application layer 6, followed by electrodeposition and intermediate pressure. For pasting vehicle noise prevention in a body panel joint, characterized in that it is cured into an elastic body 6 'foamed and cured by heating while the vehicle body passes through at a temperature of 140 to 190 ° C. in a top coat drying furnace. Method for Filling Effervescent Fillers.
KR1020030038238A 2003-06-13 2003-06-13 Foamable filler composition of paste type for preventing noise of vehicles KR100615824B1 (en)

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KR102504154B1 (en) * 2021-08-27 2023-03-02 주식회사 스마트팜 Insulating panel and manufacturing method of the same

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