KR100521598B1 - Material of Anti-Vibration Rubber sheet for Automotive Floor - Google Patents
Material of Anti-Vibration Rubber sheet for Automotive Floor Download PDFInfo
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- KR100521598B1 KR100521598B1 KR10-2002-0044238A KR20020044238A KR100521598B1 KR 100521598 B1 KR100521598 B1 KR 100521598B1 KR 20020044238 A KR20020044238 A KR 20020044238A KR 100521598 B1 KR100521598 B1 KR 100521598B1
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- rubber sheet
- weight
- vibration damper
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- rubber
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 27
- 239000005060 rubber Substances 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 title description 9
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 10
- 239000000654 additive Substances 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims abstract description 10
- 230000000996 additive effect Effects 0.000 claims abstract description 8
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 11
- 239000010426 asphalt Substances 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 229920005601 base polymer Polymers 0.000 claims description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000005062 Polybutadiene Substances 0.000 claims description 5
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 5
- 229920002857 polybutadiene Polymers 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 229920003051 synthetic elastomer Polymers 0.000 claims description 3
- 239000005061 synthetic rubber Substances 0.000 claims description 3
- QABZOJKEJLITJL-UHFFFAOYSA-N but-3-enoic acid;ethenyl acetate Chemical class CC(=O)OC=C.OC(=O)CC=C QABZOJKEJLITJL-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- ZFACJPAPCXRZMQ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O.OC(=O)C1=CC=CC=C1C(O)=O ZFACJPAPCXRZMQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims 1
- 238000013016 damping Methods 0.000 abstract description 17
- 239000004848 polyfunctional curative Substances 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 abstract description 4
- 230000000704 physical effect Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920002589 poly(vinylethylene) polymer Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- VXHYVVAUHMGCEX-UHFFFAOYSA-N 2-(2-hydroxyphenoxy)phenol Chemical compound OC1=CC=CC=C1OC1=CC=CC=C1O VXHYVVAUHMGCEX-UHFFFAOYSA-N 0.000 description 1
- RWHRFHQRVDUPIK-UHFFFAOYSA-N 50867-57-7 Chemical compound CC(=C)C(O)=O.CC(=C)C(O)=O RWHRFHQRVDUPIK-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- -1 Polyethylene Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical class CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 150000003097 polyterpenes Chemical class 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- 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
- C08K3/34—Silicon-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
- C08K5/01—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
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
- C08K5/3445—Five-membered rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen
- C08L23/0853—Ethene vinyl acetate copolymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
본 발명은 차체 플로어(Floor) 제진재용 고무시트에 관한 것으로서, 더욱 상세하게는 종래 베이스(Base), 충진제, 가공조제, 점착부여제의 조성및 함량을 개선시키고 추가적으로 경화제와 첨가제를 포함하는 차체 플로어(Floor) 제진재용 고무시트에 관한 것이다.The present invention relates to a rubber sheet for a vehicle vibration damper, and more particularly, to improve the composition and content of a base, a filler, a processing aid, a tackifier, and additionally include a hardener and an additive. (Floor) The present invention relates to a rubber sheet for vibration damper.
따라서 종래의 고무시트와 달리, 본 발명에 따른 시트의 물성은 저온에서도 제진성능이 우수하고 강성율도 매우 높을 뿐만 아니라, 비중도 낮은 효과를 나타낸다. Therefore, unlike the conventional rubber sheet, the physical properties of the sheet according to the present invention exhibits an excellent vibration damping performance at a low temperature, very high stiffness, and low specific gravity.
Description
본 발명은 차체 플로어(Floor) 제진재용 고무시트에 관한 것으로서, 더욱 상세하게는 종래 베이스(Base), 충진제, 가공조제, 점착부여제의 조성및 함량을 개선시키고 추가적으로 경화제와 첨가제를 포함하는 차체 플로어(Floor) 제진재용 고무시트에 관한 것이다.The present invention relates to a rubber sheet for a vehicle vibration damper, and more particularly, to improve the composition and content of a base, a filler, a processing aid, a tackifier, and additionally include a hardener and an additive. (Floor) The present invention relates to a rubber sheet for vibration damper.
일반적으로 현재 중·고급차종에 확산 적용되고 있는 차체 플로어용 제진재료는 아스팔트 시트만으로 이루어진 종래 제진재의 강성을 향상시키기 위해 1,2-폴리부타디엔을 기본 폴리머로하는 고무시트를 구속재로 아스팔트 시트위에 부착시킨 복합형 구조이다(도 1). 이러한 복합형 구조의 제진재료 시트는 기본 폴리머가 상온에 비하여 고온영역(40 ∼ 60℃)에서 우수한 댐핑(Damping)효과를 나타내어 주행시 온도상승으로 제진특성이 현저히 감소되는 단점을 보강하여 고온에서도 제진성이 우수하고 고무계열의 구속재가 경화되어 아주 단단한 시트로 되어 강성이 우수하게 되므로 강성이 요구되는 부위에 많이 사용되고 있다. 그러나 온도상승에 따라 제진성능이 우수하기는 하나, 20℃ 부근에서는 오히려 제진성능이 우수하지 않아 자동차가 온도상승되기 이전에는 제진성능이 매우 떨어지는 문제점이 있다. 또한 도장라인의 경화시 복합층 구조로 인하여 가스빼기 불량이 발생하면 부풀어 오르는 문제가 발생하고 구속층 재료가 고무 계열로 수분에 의한 취약성이 있어 일부 수분이 많으면 구속층 자체가 경화후 부풀어 오르는 문제점이 있다. 이 밖에도 경화시 미경화가 발생되면 정확한 제품이 되지 않고 상온에서 자연경화가 발생되어 황냄새가 발생하는등의 문제가 있어 이에 대한 개선의 필요성이 지대한 실정이었다. In general, the vibration damping material for body floors currently being applied to mid- and high-end cars is asphalt sheet with restraining rubber sheet based on 1,2-polybutadiene as the main polymer in order to improve the rigidity of the conventional vibration damping material consisting only of asphalt sheet. It is a composite structure attached to it (Fig. 1). The damping material sheet of the composite structure exhibits excellent damping effect in the high temperature range (40 to 60 ° C.) compared to the normal temperature, thereby reinforcing the disadvantage that the damping characteristic is significantly reduced due to the temperature rise during driving. This excellent, rubber-based restraint material is hardened and becomes a very hard sheet, so that the rigidity is excellent, it is widely used in the area where rigidity is required. However, although the vibration damping performance is excellent according to the temperature rise, the vibration damping performance is not very good at around 20 ° C., so the vibration damping performance is very poor before the temperature rise of the vehicle. In addition, due to the complex layer structure during the curing of the coating line, a problem of swelling occurs when there is a problem of bleeding gas, and the restraint layer material is vulnerable to moisture due to the rubber-based material. have. In addition, when the uncured hardening occurs during the curing, there is a problem such as a natural odor occurs at room temperature to produce a sulfur smell, so there is a great need for improvement.
이에, 본 발명자들은 상술한 바와 같이 저온에서의 제진성능을 개선시키기 위하여 예의 노력한 결과, 종래 베이스(Base) 폴리머, 충진제, 가공조제, 점착부여제의 조성및 함량을 개선시키고 추가적으로 경화제와 첨가제를 혼합 제조함으로서, 저온에서의 제진성능은 물론 강성율도 개선되고 비중도 낮출 수 있음을 확인하고 본 발명을 완성하게 되었다.Accordingly, the present inventors have made diligent efforts to improve the vibration damping performance at low temperatures as described above, and as a result, improve the composition and content of conventional base polymers, fillers, processing aids, tackifiers, and additionally mix hardeners and additives. By preparing, it was confirmed that the vibration suppression performance at low temperature as well as the stiffness can be improved and the specific gravity can be lowered, thus completing the present invention.
따라서, 본 발명은 베이스(Base) 폴리머, 충진제, 가공조제, 점착부여제의 조성및 함량을 달리하고 경화제와 첨가제를 추가적으로 포함하는 차체 플로어(Floor) 제진재용 고무시트를 제공하는데 그 목적이 있다. Accordingly, an object of the present invention is to provide a rubber sheet for vehicle floor vibration damper that includes a base polymer, a filler, a processing aid, and a tackifier, and further comprises a hardener and an additive.
본 발명은 베이스(Base) 폴리머, 충진제, 가공조제, 점착부여제로 이루어진 고무시트에 있어서, 메타크릴레이트(Methacrylate) 경화제 1 ∼ 4 중량%; 카본블랙(Carbon Black), 브라운 아스팔트(Blown asphalt) 중에서 선택된 첨가제 1 ∼ 5 중량%를 포함하는 차체 플로어(Floor) 제진재용 고무시트를 그 특징으로 한다.The present invention is a rubber sheet consisting of a base polymer, a filler, a processing aid, a tackifier, 1 to 4% by weight of a methacrylate (Methacrylate) curing agent; A rubber sheet for a vehicle floor vibration damper comprising 1 to 5% by weight of an additive selected from carbon black and brown asphalt.
이와 같은 본 발명을 더욱 상세히 설명하면 다음과 같다.Referring to the present invention in more detail as follows.
본 발명은 차체 플로어(Floor) 제진재용 고무시트에 관한 것으로서, 저온에서도 제진성능이 우수하고 강성율도 매우 높을 뿐만아니라, 비중도 낮게 개선된 것이다. The present invention relates to a rubber sheet for vehicle floor vibration damping materials, and has excellent vibration damping performance at low temperatures, a very high stiffness ratio, and a low specific gravity.
본 발명에 따른 제진재용 고무시트의 각 조성및 함량에 대하여 더욱 구체화하여 설명하면 다음과 같다.Hereinafter, the specific composition and content of the vibration damping rubber sheet according to the present invention will be described in detail.
먼저, 본 발명은 경화제및 첨가제를 새로이 첨가하는데 가장 큰 특징이 있는 바, 폴리아미드(Polyamide)계, 이미다졸(Imidazol) 변성 및 메타크릴레이트(Methacrylate)중에서 선택된 1종 이상을 전체 조성물 함량중 1 ∼ 4 중량%를 사용하는 것이 바람직하다. 왜냐하면 상기 범위를 벗어나면 접착력이 떨어져 하단부의 아스팔트 시트와의 부착력이 떨어지는 문제가 있기 때문이다. 그리고 첨가제는 내열성, 착색성, 보강성을 위해 첨가하는 것으로, 카본블랙(Carbon Black), 혼합 금속염(Mixed metal salts)또는 브라운 아스팔트(Blown asphalt)중에서 선택된 1종 이상을 전체 조성물 함량중 1 ∼ 5 중량%를 사용하는 것이 바람직하다. 만일 상기 범위를 벗어나면 제품의 착색및 내열성등에 같은 부작용이 발생하게 된다. First, the present invention is characterized by the greatest addition to the new addition of a curing agent and additive, at least one selected from polyamide-based, imidazol-modified and methacrylate 1 It is preferable to use 4 weight%. This is because the adhesive force is out of the above range and the adhesive force with the asphalt sheet of the lower end is falling. In addition, the additive is added for heat resistance, colorability, and reinforcement, and at least one selected from carbon black, mixed metal salts, and brown asphalt is 1 to 5% by weight of the total composition. Preference is given to using%. If outside the above range, the same side effects occur in the coloring and heat resistance of the product.
또한 본 발명은 종래 고무시트와는 달리 베이스(Base) 폴리머로서 1,2-폴리부타디엔이 아닌 폴리프로필렌에 EPDM가교화한 열가소성고무, 열가소성고무 (Thermoplastic rubber(TPR)) 변성 비닐아세테이트(Vinyl acetate), 수화 열가소성 일라스토머(Thermoplastic elastomer,TPE)또는 폴리메틸메타아크릴레이트(Poly Methyl Methacrylate)수지(PMMA resin)중에서 선택된 1종 이상을 전체 조성물 함량 중 25 ∼ 40 중량%를 포함한다. 왜냐하면 이들 함량이 25 중량% 미만이면 다른 조성과의 분산성이 저하되고 내충격성과 부착성 저하 및 박리문제가 발생되고, 40 중량%를 초과하면 강성유지및 제진성과 생산성 저하로 바람직하지 못하기 때문이다. 그리고 본 발명은 충진제를 포함하고 있으며, 이러한 충진제로는 마이카(Mica), 벤토나이트계, 산화철(Iron oxide)또는 탄산칼슘 중에서 선택된 1종 이상을 전체 조성물 함량중 30 ∼ 50 중량%를 포함하는것이 바람직하다. 왜냐햐면, 이들 함량이 전체 조성물 함량중 30 중량% 미만이면 제진성이 저하되며, 50중량%를 초과함유하면 다른 조성과의 혼합불량이 되어 요구물성을 얻을 수 없을 뿐만아니라 작업성도 저하되어 바람직하지 않기 때문이다. 또한 본 발명은 가공조제로서 전체 조성물 함량중 8 ∼ 23 중량%를 포함하며, 프탈레이트(Phthalate)계인 것을 사용한다. 이때 이 함량이 8 중량% 미만이면 가공성과 성형성이 불량이 되는데 반해, 23 중량%를 초과하면 목적하는 물성을 얻기 어려운 문제점이 있게된다. 이밖에도 유연성과 접착성 향상을 위해 점착부여제로서 폴리부타디엔 수지(Polybutadiene resin)를 전체 조성물 함량중 1 ∼ 3 중량%를 포함한다. 마지막으로 본 발명은 전체 조성물 함량중 8 ∼ 15 중량%의 에폭시 수지를 추가적으로 포함한다. 이러한 에폭시 수지로는 비스페놀 A계또는 합성고무계 에폭시 수지를 사용하는 것이 바람직하며, 이들 함량이 8 중량% 미만이면 접착력 저하와 기계적 강성저하를 가져오고, 15 중량%를 초과하면 내충격성이 저하되게 된다. 또한 조성구성에 따라서 사용하지 않아도 좋다.In addition, the present invention, unlike the conventional rubber sheet as a base (Base) polymer, 1,2-polybutadiene, EPDM cross-linked thermoplastic rubber, thermoplastic rubber (Tr) modified vinyl acetate (Vinyl acetate) At least one selected from hydrated thermoplastic elastomer (TPE) or polymethyl methacrylate resin (PMMA resin) includes 25 to 40 wt% of the total composition content. If these contents are less than 25% by weight, the dispersibility with other compositions is lowered, impact resistance and adhesion deterioration and peeling problems occur, and if the content exceeds 40% by weight, it is undesirable because of stiffness maintenance and vibration damping and productivity reduction. to be. In addition, the present invention includes a filler, and the filler may include 30-50 wt% of one or more selected from mica, bentonite, iron oxide, or calcium carbonate. Do. If the content is less than 30% by weight of the total composition content, the damping resistance is lowered. If the content is more than 50% by weight, it is not mixed with other compositions, and the required properties are not obtained. Because it does not. In addition, the present invention comprises 8 to 23% by weight of the total composition as a processing aid, and uses a phthalate (Phthalate) system. In this case, if the content is less than 8% by weight, the workability and moldability are poor, whereas if the content is more than 23% by weight, it is difficult to obtain the desired physical properties. In addition, the polybutadiene resin (Polybutadiene resin) contains 1 to 3% by weight of the total composition as a tackifier to improve flexibility and adhesion. Finally, the present invention further comprises 8 to 15% by weight of epoxy resin in the total composition content. It is preferable to use bisphenol A-based or synthetic rubber-based epoxy resins as such epoxy resins. If the content is less than 8% by weight, the adhesive strength and mechanical rigidity are lowered, and if the content exceeds 15% by weight, the impact resistance is lowered. . Moreover, it is not necessary to use it according to a composition structure.
이하, 본 발명을 다음의 실시예에 의거하여 더욱 상세히 설명하겠는 바, 본 발명이 실시예에 한정되는것은 아니다.Hereinafter, the present invention will be described in more detail based on the following examples, but the present invention is not limited to the examples.
실시예 1 ~ 3 Examples 1 to 3
하기 표 1의 조성 및 함량으로 시트 조성물을 먼저 베이스 폴리머(Base Polymer)에 에폭시, 첨가제, 충진제, 가공조제를 니더(Kneader)에 투입하였다. 그런다음 점착부여제를 첨가하고, 여기에 경화제를 투입하여 니더 또는 하이스피드 믹서로 화합물을 제조한 다음, 압축기를 이용하여 토출시켜 압축롤러를 통과하면서 2mm 두께의 고무시트를 제조하였다. 그리고 복합층 하단부에 역시 2mm의 일반 아스팔트시트를 합포시킨 후 평가를 위한 규격으로 시트를 재단하였다. To the composition and content of the following Table 1, the sheet composition was first charged with epoxy, additives, fillers, and processing aids to a base polymer (Kneader). Then, a tackifier was added, and a curing agent was added thereto to prepare a compound using a kneader or a high speed mixer, and then discharged using a compressor to prepare a rubber sheet having a thickness of 2 mm while passing through a compression roller. In addition, 2 mm of general asphalt sheet was also laminated to the bottom of the composite layer, and the sheet was cut to a standard for evaluation.
비교예Comparative example
하기 표 1의 조성및 함량을 믹서로 혼합제조한 다음 압축롤러를 통과시켜 2mm 두께의 시트를 제조하였다. 그런다음 복합층 하단부에 2mm 두께의 일반 아스팔트시트를 합포시킨 후 상기와 같이 평가를 위한 규격으로 시트를 재단하였다. The composition and content of the following Table 1 were prepared by mixing with a mixer, and then passed through a compression roller to prepare a sheet having a thickness of 2 mm. Then, a 2 mm thick general asphalt sheet was laminated to the bottom of the composite layer, and the sheet was cut to a standard for evaluation as described above.
실험예 1 ~ 3 및 비교예Experimental Examples 1-3 and Comparative Examples
상기 실시예 1 ∼ 3 및 비교예에서 제작된 시트를 300 ×30 ×4mm 크기의 시편으로 제작한 다음, 300 ×30mm의 판넬(두께: 0.8mm)위에 시트를 놓고 150℃의 오븐기에 30분동안 경화시켜 시험편을 제작하였다. 그리고 손실계수와 강성율을 인피던스 헤드를 이용한 중점가진법으로 평가를 실시하였다.The sheets prepared in Examples 1 to 3 and Comparative Examples were made into specimens having a size of 300 × 30 × 4 mm, and then placed on a 300 × 30 mm panel (thickness: 0.8 mm) for 30 minutes in an oven at 150 ° C. It hardened | cured and the test piece was produced. In addition, loss coefficient and stiffness were evaluated by the midpoint method using the impedance head.
이상에서 상술한 바와 같이, 본 발명은 차체 플로어(Floor) 제진재용 고무시트에 관한 것이다. 따라서 종래의 제진재용 고무시트와 달리, 본 발명의 고무시트 물성은 저온에서도 제진성능이 우수하고 강성율도 매우 높을 뿐만아니라 비중도 낮은 효과를 나타낸다. As described above, the present invention relates to a rubber sheet for vehicle floor vibration damper. Therefore, unlike the conventional rubber sheet for vibration damper, the rubber sheet physical properties of the present invention exhibits an excellent vibration damping performance at a low temperature, very high stiffness, and low specific gravity.
도 1은 일반적인 차체 플로어 재진재료의 단면을 개략적으로 나타낸 것이다.Figure 1 schematically shows a cross section of a typical car body floor material.
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| KR100972530B1 (en) | 2008-10-17 | 2010-07-28 | 평화오일씰공업주식회사 | Rubber composition for automatic garage maintenance |
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| KR19980033587A (en) * | 1998-04-28 | 1998-07-25 | 김연용 | Sound insulation, dustproof, heat resistant insulation sheet composition |
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| JPS6264850A (en) * | 1985-09-18 | 1987-03-23 | Ube Ind Ltd | Vibration-damping material composition and composite material thereof |
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| KR100972530B1 (en) | 2008-10-17 | 2010-07-28 | 평화오일씰공업주식회사 | Rubber composition for automatic garage maintenance |
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