KR102427656B1 - Busy rubber composition for vehicle suspension device having excellent ozone resistance and carbon steel-rubber adhesion property - Google Patents
Busy rubber composition for vehicle suspension device having excellent ozone resistance and carbon steel-rubber adhesion property Download PDFInfo
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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
- C08L21/00—Compositions of unspecified rubbers
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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
- C08K3/02—Elements
- C08K3/04—Carbon
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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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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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
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
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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
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
Description
본 발명은 자동차 현가장치용 부시 제품이 가져야하는 특성(경도, 인장강도, 신장률, 영구압축줄음율, 내열성 등)을 만족시키면서도 내오존성 및 탄소강과 고무의 접착특성을 향상시킬 수 있도록 하는 자동차 현가장치용 부시 고무 조성물에 관한 것이다.The present invention is an automobile suspension system that satisfies the characteristics (hardness, tensile strength, elongation, permanent compression set, heat resistance, etc.) that a bush product for automobile suspension should have, while improving ozone resistance and adhesion characteristics between carbon steel and rubber. It relates to a bush rubber composition for use.
일반적으로 자동차 현가장치는 노면에서 발생하는 충격이 차체나 탑승자에게 직접적으로 전해지지 않게 충격을 흡수하는 기능과 타이어를 노면에 확실하게 접지시키는 기능이 주요한 역할이며 서스펜션 시스템이라고도 한다. 탑승자의 승차감과 차량의 안정성에 영향을 미치며 암(ARM) 부분에 부시가 적용되고 있다.In general, the main role of a vehicle suspension system is to absorb the shock so that the shock generated from the road surface is not transmitted directly to the vehicle body or the occupants and to securely ground the tire to the road surface, and is also called a suspension system. Bushing is applied to the arm part, which affects the ride comfort of the occupant and the stability of the vehicle.
이러한 부시 제품들은 차량의 종류에 따른 암의 크기 및 모양에 따라 다르며, 차량의 바닥부에 노출되어 온도변화, 기후변화, 충격 등의 외부환경 변화에서도 고무의 정상적인 성능 발휘를 위해 내열성, 내한성, 내오존성 및 변형에 대한 내구성 등의 특성을 지녀야 하며 탄소강과 고무의 복합체로 구성된다.These bush products vary according to the size and shape of the arm according to the type of vehicle, and are exposed to the bottom of the vehicle to ensure normal performance of rubber in external environment changes such as temperature change, climate change, and impact. It should have characteristics such as ozone resistance and resistance to deformation and is composed of a composite of carbon steel and rubber.
현재 부시 제품의 고무 기재는 NR(Natural Rubber), BR(Butadiene Rubber), SBR(Styrene Butadiene Rubber)을 블랜드(Blend)하여 사용하고 있다. 이러한 고무들은 구조적으로 불포화기를 많이 함유하고 있어 오존에 약한 특성을 지니고 있으며, 왁스 성분을 고무 배합에 과량 첨가시켜 고무 표면으로 왁스 성분을 블루밍(Blooming)시킴으로써 부족한 내오존성을 극복하고 있다. 하지만 이러한 블루밍 성분을 과량으로 첨가하게 되면 탄소강과 고무의 접착 특성에 악영향을 줄 수 있어 부시 제품의 비틀림 내구성에 문제가 발생할 수 있다.Currently, the rubber base of Bush products is used by blending NR (Natural Rubber), BR (Butadiene Rubber), and SBR (Styrene Butadiene Rubber). These rubbers structurally contain a lot of unsaturated groups, and thus have weak properties to ozone, and overcome the lack of ozone resistance by blooming the wax component onto the rubber surface by adding an excessive amount of the wax component to the rubber compounding. However, if such a blooming component is added in excess, it may adversely affect the adhesive properties of carbon steel and rubber, which may cause problems in torsional durability of bush products.
따라서, 내오존성 및 탄소강과 고무의 접착 특성이 모두 향상된 자동차 현가장치용 부시 고무 조성물의 개발이 요구되어 왔지만 기술적 난이도가 높아 현재까지 어려움을 겪고 있다. 이 기술적 어려움의 배경에는 자동차 부시가 가져야 하는 특성들을 모두 만족하면서 내오존성 및 탄소강과 고무의 접착 특성이 우수하여야 가능하다는 것이다.Accordingly, there has been a demand for the development of a bush rubber composition for an automobile suspension with improved ozone resistance and improved adhesion properties between carbon steel and rubber, but it has been difficult to date due to high technical difficulty. The background of this technical difficulty is that it is possible only when it satisfies all the characteristics that an automobile bush should have, and has excellent ozone resistance and adhesion between carbon steel and rubber.
관련 선행기술로써, 특허문헌 1에서는 천연고무 및 부타디엔고무 혼합 100 중량부에 대하여 가교촉진제 0.5 ~ 5 중량부, 황 0.2 ~ 4 중량부, 활성제 3 ~ 10 중량부, 노화방지제 2 ~ 6 중량부, 윤활제 5 ~ 16 중량부 및 카본블랙 20 ~ 60 중량부를 포함하는 스테빌라이저 바 부시용 고무 조성물을 제안하였다.As a related prior art, in Patent Document 1, 0.5 to 5 parts by weight of a crosslinking accelerator, 0.2 to 4 parts by weight of sulfur, 3 to 10 parts by weight of an active agent, 2 to 6 parts by weight of an anti-aging agent, based on 100 parts by weight of a mixture of natural rubber and butadiene rubber, A rubber composition for a stabilizer bar bush comprising 5 to 16 parts by weight of a lubricant and 20 to 60 parts by weight of carbon black was proposed.
그리고 특허문헌 2에서는 천연고무 및 부타디엔고무 혼합물 100 중량부에 대하여, 충전제 30~50 중량부, 가소제 3~7 중량부, 활성화제 5~15 중량부, 노화방지제 8~20 중량부, 황 0.1~0.3 중량부 및 가황촉진제 2.5~5 중량부를 포함하고, 상기 노화방지제는 아연-2-에틸헥사노에이트(Zinc-2-ethylhexanoate, ZEH-DL) 3~6 중량부, 4-(1-메틸-1-페닐에틸)-N-[4-(1-메틸-1-페닐에틸)페닐]아닐린{4-(1-methyl-1-phenylethyl)-N-[4-(1-methyl-1-phenylethyl)phenyl]aniline, N-445} 0.5 ~ 1.5 중량부, 아연 메틸 메르캅토벤즈이미다졸(Zinc methyl mercaptobezimdazole, ZM-TI) 1~3 중량부, N-(1,3-디메틸부틸)-N'-페닐-p-페닐렌디아민{ N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylene diamine, 7P} 1~3 중량부, 파라민 왁스(Paraffin wax, S-215) 1~3 중량부, 폴리(2,2,4-트리메틸-1,2-디하이드로퀴놀린){poly(2,2,4-trimethyl-1,2-dihydroquinoline), RD} 0.5~1.5 중량부, 아연 디아크릴레이트(Zinc diacrylate, Actor-ZA) 1~2 중량부를 혼합한 자동차용 고무부시 조성물을 제안하였다.And in Patent Document 2, with respect to 100 parts by weight of the natural rubber and butadiene rubber mixture, 30 to 50 parts by weight of a filler, 3 to 7 parts by weight of a plasticizer, 5 to 15 parts by weight of an activator, 8 to 20 parts by weight of an antioxidant, 0.1 to sulfur 0.3 parts by weight and 2.5 to 5 parts by weight of a vulcanization accelerator, wherein the antioxidant is zinc-2-ethylhexanoate (Zinc-2-ethylhexanoate, ZEH-DL) 3 to 6 parts by weight, 4-(1-methyl- 1-phenylethyl)-N-[4-(1-methyl-1-phenylethyl)phenyl]aniline {4-(1-methyl-1-phenylethyl)-N-[4-(1-methyl-1-phenylethyl) )phenyl]aniline, N-445} 0.5 to 1.5 parts by weight, zinc methyl mercaptobezimdazole (ZM-TI) 1-3 parts by weight, N-(1,3-dimethylbutyl)-N' -Phenyl-p-phenylenediamine { N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylene diamine, 7P} 1~3 parts by weight, Paraffin wax (S-215) 1~ 3 parts by weight, poly(2,2,4-trimethyl-1,2-dihydroquinoline) {poly(2,2,4-trimethyl-1,2-dihydroquinoline), RD} 0.5 to 1.5 parts by weight, zinc dihydroquinoline A rubber bush composition for automobiles in which 1 to 2 parts by weight of acrylate (Zinc diacrylate, Actor-ZA) was mixed was proposed.
하지만, 상기와 같은 종래기술의 경우 자동차 현가장치용 부시 제품이 가져야하는 특성(경도, 인장강도, 신장률, 영구압축줄음율, 내열성 등)을 일부 만족시키지만, 내오존성 및 탄소강과 고무의 접착 특성에 미비한 문제점이 있었다.However, in the case of the prior art as described above, although some of the characteristics (hardness, tensile strength, elongation, permanent compression set, heat resistance, etc.) that a bush product for automobile suspension should have are satisfied, it is There were subtle problems.
본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 내오존성 및 탄소강과 고무의 접착특성을 발현하기 위해 왁스 성분을 고무 배합에 적용하고, 또한 카본블랙, 가교제 및 기타 첨가제의 혼합비를 최적화함으로써, 자동차 현가장치용 부시 제품이 가져야하는 특성(경도, 인장강도, 신장률, 영구압축줄음율, 내열성 등)을 만족시키면서도 내오존성 및 탄소강과 고무의 접착특성을 향상시킬 수 있도록 함을 과제로 한다.The present invention is to solve the above problems, by applying a wax component to rubber compounding in order to express ozone resistance and adhesion properties between carbon steel and rubber, and by optimizing the mixing ratio of carbon black, crosslinking agent and other additives, The task is to improve the ozone resistance and adhesion properties between carbon steel and rubber while satisfying the characteristics (hardness, tensile strength, elongation, permanent compression set, heat resistance, etc.) that a bush product for suspension should have.
본 발명은 자동차 현가장치용 부시 고무 조성물에 있어서, 고무 기재에 왁스(wax) 성분이 포함되어 이루어지는 것을 특징으로 하는, 내오존성 및 탄소강과 고무의 접착특성이 우수한 자동차 현가장치용 부시 고무 조성물을 과제의 해결 수단으로 한다.The present invention provides a bush rubber composition for an automobile suspension, which has excellent ozone resistance and adhesion properties between carbon steel and rubber, characterized in that a wax component is included in the rubber base in the bush rubber composition for automobile suspension. as a solution to
보다 구체적으로 상기 자동차 현가장치용 부시 고무 조성물은 고무 기재 100 중량부에 대하여, 카본블랙(carbon black) 60 ~ 80 중량부, 금속산화물 2 ~ 5 중량부, 산화방지제 2 ~ 5 중량부, 왁스 성분 0.5 ~ 3 중량부, 오일(oil) 3 ~ 5 중량부, 가교제 1 ~ 2 중량부, 가교촉진제 1 ~ 4 중량부 및 스테아린산(stearic acid) 0.5 ~ 1 중량부로 이루어지는 것이 바람직하다.More specifically, the bush rubber composition for a vehicle suspension is based on 100 parts by weight of the rubber base, 60 to 80 parts by weight of carbon black, 2 to 5 parts by weight of metal oxide, 2 to 5 parts by weight of antioxidant, and wax component It is preferable to consist of 0.5 to 3 parts by weight, 3 to 5 parts by weight of oil, 1 to 2 parts by weight of a crosslinking agent, 1 to 4 parts by weight of a crosslinking accelerator, and 0.5 to 1 parts by weight of stearic acid.
한편, 상기 왁스 성분은 아마이드계 왁스인 것이 바람직하다.On the other hand, the wax component is preferably an amide-based wax.
본 발명은 자동차 현가장치용 부시 제품이 가져야하는 특성(경도, 인장강도, 신장률, 영구압축줄음율, 내열성 등)을 만족시키면서도 내오존성 및 탄소강과 고무의 접착특성을 향상시킬 수 있는 효과가 있다.The present invention satisfies the properties (hardness, tensile strength, elongation, permanent compression set, heat resistance, etc.) that a bush product for an automobile suspension device should have, while improving ozone resistance and adhesion properties between carbon steel and rubber.
상기의 효과를 달성하기 위한 본 발명은 내오존성 및 탄소강과 고무의 접착 특성이 향상된 자동차 현가장치용 부시 고무 조성물에 관한 것으로서, 본 발명의 기술적 구성을 이해하는데 필요한 부분만이 설명되며 그 이외 부분의 설명은 본 발명의 요지를 흩트리지 않도록 생략될 것이라는 것을 유의하여야 한다.The present invention for achieving the above effect relates to a bush rubber composition for automobile suspension with improved ozone resistance and adhesion properties between carbon steel and rubber. It should be noted that descriptions will be omitted so as not to obscure the gist of the present invention.
이하, 본 발명에 따른 내오존성 및 탄소강과 고무의 접착 특성이 향상된 자동차 현가장치용 부시 고무 조성물을 상세히 설명하면 다음과 같다.Hereinafter, the bush rubber composition for a vehicle suspension having improved ozone resistance and adhesion properties between carbon steel and rubber according to the present invention will be described in detail as follows.
본 발명에 따른 내오존성 및 탄소강과 고무의 접착 특성이 향상된 자동차 현가장치용 부시 고무 조성물은, 고무 기재에 왁스 성분이 포함되어 이루어지는 것을 특징으로 하며, 보다 구체적으로는 고무 기재 100 중량부에 대하여, 카본블랙 60 ~ 80 중량부, 금속산화물 2 ~ 5 중량부, 산화방지제 2 ~ 5 중량부, 왁스 성분 0.5 ~ 3 중량부, 오일 3 ~ 5 중량부, 가교제 1 ~ 2 중량부, 가교촉진제 1 ~ 4 중량부 및 스테아린산 0.5 ~ 1 중량부로 이루어지는 것을 특징으로 한다.The bush rubber composition for automobile suspension with improved ozone resistance and adhesion between carbon steel and rubber according to the present invention is characterized in that a wax component is included in a rubber substrate, and more specifically, based on 100 parts by weight of the rubber substrate, 60 to 80 parts by weight of carbon black, 2 to 5 parts by weight of metal oxide, 2 to 5 parts by weight of antioxidant, 0.5 to 3 parts by weight of wax component, 3 to 5 parts by weight of oil, 1 to 2 parts by weight of crosslinking agent, 1 to crosslinking accelerator It is characterized in that it consists of 4 parts by weight and 0.5 to 1 part by weight of stearic acid.
상기 고무 기재는 NR, BR, SBR, CR(Chloroprene Rubber) 중 단독 또는 병용하여 사용하는 것이 바람직하다. The rubber substrate is preferably used alone or in combination among NR, BR, SBR, and CR (Chloroprene Rubber).
상기 카본블랙은 고무의 물성을 향상시키기 위해 첨가되는 것으로, 그 함량이 60 중량부 미만일 경우 물성 향상 효율이 미비해질 우려가 있으며, 80 중량부를 초과할 경우 분산성이 저하될 우려가 있다.The carbon black is added to improve the physical properties of the rubber, and when the content is less than 60 parts by weight, the efficiency of improving the physical properties may be insufficient, and if it exceeds 80 parts by weight, the dispersibility may decrease.
상기 금속산화물은 가교촉진제의 반응성 향상을 위해 첨가되는 것으로, 금속산화물은 산화아연을 단독으로 사용한다. 한편, 상기 금속산화물의 ?t량이 2 중량부 미만일 경우 가교촉진제의 반응성이 저하될 우려가 있으며, 4 중량부를 초과할 경우 오히려 고무의 기계적 물성이 저하될 우려가 있다.The metal oxide is added to improve the reactivity of the crosslinking accelerator, and zinc oxide is used alone as the metal oxide. On the other hand, when the ?t amount of the metal oxide is less than 2 parts by weight, there is a fear that the reactivity of the crosslinking accelerator is reduced, and when it exceeds 4 parts by weight, there is a possibility that the mechanical properties of the rubber may be reduced.
상기 산화방지제는 고무의 물성 저하를 방지하기 위해 첨가되는 것으로, N-페닐-N'-이소프로필-p-페닐렌디아민(N-phenyl-N'-isopropyl-p-phenylenediamine), 4,4'-비스(알파,알파-디메틸벤질)디-페닐아민(4,4'-Bis(alpha,alpha- dimethylbenzyl)di -phenylamine), 중합 1,2-디하이드로-2,2,4-트리메틸 퀴놀린(polymerized 1,2-dihydro-2,2,4-trimethyl quinoline) 중에서 단독 또는 병용하여 사용할 수 있고 이 외에도 다양한 페놀(phenol)계, 아민(amine)계, 퀴놀린(quinoline)계, 이미디아졸(imidiazol)계 중에서 단독 또는 병용하여 사용할 수 있으나 반드시 여기에 한정되는 것은 아니고 이미 공지된 다양한 산화방지제의 사용이 가능하다. 한편 상기 산화방지제의 함량이 2 중량부 미만일 경우 산화방지제 효과가 미비하며, 5 중량부를 초과할 경우 오히려 고무의 기계적 물성이 저하될 우려가 있다.The antioxidant is added to prevent deterioration of the physical properties of rubber, N-phenyl-N'-isopropyl-p-phenylenediamine, 4,4' -Bis(alpha,alpha-dimethylbenzyl)di-phenylamine (4,4'-Bis(alpha,alpha-dimethylbenzyl)di-phenylamine), polymerized 1,2-dihydro-2,2,4-trimethylquinoline ( Polymerized 1,2-dihydro-2,2,4-trimethyl quinoline) can be used alone or in combination. ) can be used alone or in combination, but it is not necessarily limited thereto, and various known antioxidants can be used. On the other hand, when the content of the antioxidant is less than 2 parts by weight, the antioxidant effect is insignificant, and when it exceeds 5 parts by weight, there is a risk that the mechanical properties of the rubber may be deteriorated.
상기 왁스 성분은 고무의 내오존성 향상을 위해 첨가되는 것으로, 왁스 성분은 아마이드계 왁스(예를 들면, Armoslip CP, AkzoNobel)를 단독으로 사용한다. 한편 상기 왁스 성분의 함량이 0.5 중량부 미만일 경우 내오존성 향상 효율이 미비해질 우려가 있으며, 3 중량부를 초과할 경우 탄소강과 고무의 접착 특성이 저하될 우려가 있다.The wax component is added to improve the ozone resistance of rubber, and an amide-based wax (eg, Armoslip CP, AkzoNobel) is used alone as the wax component. On the other hand, when the content of the wax component is less than 0.5 parts by weight, there is a fear that the ozone resistance improvement efficiency is insufficient, and when it exceeds 3 parts by weight, there is a fear that the adhesive properties of carbon steel and rubber may be deteriorated.
상기 오일은 고무의 가공성 개선을 위해 첨가되는 것으로, 파라핀(Paraffin)계 프로세스 오일(Process oil), 화이트 오일(White oil) 중에서 단독 또는 병용하여 사용할 수 있으나 반드시 여기에 한정되는 것은 아니고 이미 공지된 다양한 오일의 사용이 가능하다. 한편 상기 오일의 함량이 3 중량부 미만일 경우 고무의 가공성 향상 효과가 미비하며, 5 중량부를 초과할 경우 고무의 물성이 저하될 우려가 있다.The oil is added to improve the processability of rubber, and may be used alone or in combination among paraffin-based process oil and white oil, but is not necessarily limited thereto, and various known Oil can be used. On the other hand, when the content of the oil is less than 3 parts by weight, the effect of improving the processability of rubber is insignificant, and when it exceeds 5 parts by weight, there is a possibility that the physical properties of the rubber may be deteriorated.
상기 가교제와 가교촉진제는 고무의 가교를 목적으로 첨가되는 것으로, 상기 가교제의 경우 황 가교제를 사용하고, 상기 가교촉진제의 경우 디페닐구아니딘(diphenylguanidine), 메르캅토벤조티아졸(mercaptobenzothiazole), 디벤조티아졸디술피드(dibenzothiazolyl disulphide), 테트라메틸티우람모노설파이드(tetramethylthiurammonosulfide), 테트라메틸티우람디설파이드(tetramethylthiuramdisulfide) 등의 사용이 가능하다. 한편, 상기와 같은 가교제와 가교촉진제의 함량이 상기 범위를 벗어날 경우, 고무의 물성 향상이 제대로 이루어지지 않을 우려가 있다.The crosslinking agent and the crosslinking accelerator are added for the purpose of crosslinking the rubber. In the case of the crosslinking agent, a sulfur crosslinking agent is used, and in the case of the crosslinking accelerator, diphenylguanidine, mercaptobenzothiazole, dibenzothia Zoldi sulfide (dibenzothiazolyl disulphide), tetramethylthiurammonosulfide (tetramethylthiurammonosulfide), tetramethylthiuramdisulfide (tetramethylthiuramdisulfide) and the like can be used. On the other hand, when the content of the crosslinking agent and the crosslinking accelerator as described above is out of the above range, there is a fear that the improvement of the physical properties of the rubber may not be properly achieved.
상기 스테아린산은 가교속도 조절 및 가공성 향상을 위해 첨가되는 것으로, 그 함량이 0.5 중량부 미만일 경우 가교 속도 조절이 어렵고 가공성이 저하 될 우려가 있으며, 1 중량부를 초과하면 블루밍 현상이 일어날 우려가 있다.The stearic acid is added to control the crosslinking rate and improve processability. When the content is less than 0.5 parts by weight, it is difficult to control the crosslinking rate and there is a risk that processability may decrease, and if it exceeds 1 part by weight, there is a risk of blooming.
이하, 본 발명을 아래 실시예에 의거하여 더욱 상세히 설명하지만, 본 발명이 실시예에 의해 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail based on the following examples, but the present invention is not limited by the examples.
1. 자동차 현가장치용 부시 고무 조성물의 제조1. Preparation of bush rubber composition for automobile suspension
(실시예 1)(Example 1)
고무 기재(NR) 100 중량부에 대하여, 카본블랙 60 중량부, 금속산화물인 산화아연 2 중량부, 산화방지제인 중합 1,2-디하이드로-2,2,4-트리메틸 퀴놀린 2 중량부, 왁스 성분(아미드계 왁스 / Armoslip CP, AkzoNobel) 0.5 중량부, 오일인 화이트 오일 3 중량부, 가교제로써 황 1 중량부, 가교촉진제인 메르캅토벤조티아졸 1 중량부 및 스테아린산 0.5 중량부를 혼합하여 제조하였다.Based on 100 parts by weight of the rubber base (NR), 60 parts by weight of carbon black, 2 parts by weight of zinc oxide as a metal oxide, 2 parts by weight of polymerized 1,2-dihydro-2,2,4-trimethyl quinoline as an antioxidant, wax It was prepared by mixing 0.5 parts by weight of ingredients (amide-based wax / Armoslip CP, AkzoNobel), 3 parts by weight of white oil as oil, 1 part by weight of sulfur as a crosslinking agent, 1 part by weight of mercaptobenzothiazole as a crosslinking accelerator, and 0.5 parts by weight of stearic acid .
(실시예 2)(Example 2)
고무 기재(BR) 100 중량부에 대하여, 카본블랙 80 중량부, 금속산화물인 산화아연 5 중량부, 산화방지제인 중합 1,2-디하이드로-2,2,4-트리메틸 퀴놀린 5 중량부, 왁스 성분(아미드계 왁스 / Armoslip CP, AkzoNobel) 3 중량부, 오일인 화이트 오일 5 중량부, 가교제로써 황 2 중량부, 가교촉진제인 메르캅토벤조티아졸 4 중량부 및 스테아린산 1 중량부를 혼합하여 제조하였다.Based on 100 parts by weight of the rubber base (BR), 80 parts by weight of carbon black, 5 parts by weight of zinc oxide as a metal oxide, 5 parts by weight of polymerized 1,2-dihydro-2,2,4-trimethylquinoline as an antioxidant, wax It was prepared by mixing 3 parts by weight of ingredients (amide-based wax / Armoslip CP, AkzoNobel), 5 parts by weight of white oil as oil, 2 parts by weight of sulfur as a crosslinking agent, 4 parts by weight of mercaptobenzothiazole as a crosslinking accelerator, and 1 part by weight of stearic acid. .
(비교예 1)(Comparative Example 1)
실시예 1과 동일하게 제조하되, 왁스 성분으로 파라핀 왁스 0.5 중량부를 첨가하였다.It was prepared in the same manner as in Example 1, except that 0.5 parts by weight of paraffin wax was added as a wax component.
(비교예 2)(Comparative Example 2)
실시예 2와 동일하게 제조하되, 왁스 성분으로 파라핀 왁스 3 중량부를 첨가하였다.It was prepared in the same manner as in Example 2, except that 3 parts by weight of paraffin wax was added as a wax component.
2. 자동차 현가장치용 부시 고무 조성물의 평가2. Evaluation of bush rubber composition for automobile suspension
상기 실시예 및 비교예에 따라 제조된 자동차 현가장치용 부시 고무 조성물에 대한 경도, 인장강도, 신장률, 영구압축줄음율, 내열성, 내오존성 및 탄소강과 고무의 접착 강도를 평가하였으며, 그 결과는 아래 [표 1]과 같다.The hardness, tensile strength, elongation, compression set, heat resistance, ozone resistance, and adhesion strength between carbon steel and rubber were evaluated for the bush rubber composition for automobile suspension manufactured according to the above Examples and Comparative Examples, and the results are as follows. It is shown in [Table 1].
변화율The tensile strength
rate of change
변화율elongation
rate of change
(탄소강/고무)Adhesive strength
(Carbon Steel/Rubber)
상기 [표 1]에서와 같이, 본 발명에 따른 실시예는 비교예에 비하여, 내오존성이 KS M 6518(온도 40℃, 오존농도 50 pphm, 72시간) 조건에서 크랙(Crack)이 발생하지 않는 내오존성 효과와 탄소강과 고무의 접착강도가 향상되면서도 자동차 현가장치용 부시 고무가 가져야 하는 특성을 만족시킬 수 있음을 알 수 있다.As shown in [Table 1], the Example according to the present invention, compared to the Comparative Example, the ozone resistance does not generate cracks under KS M 6518 (temperature 40 ℃, ozone concentration 50 pphm, 72 hours) conditions. It can be seen that while the ozone resistance effect and the bonding strength between carbon steel and rubber are improved, the characteristics that the bush rubber for automobile suspension should have can be satisfied.
상술한 바와 같이, 본 발명에 따른 내오존성 및 탄소강과 고무의 접착특성이 우수한 자동차 현가장치용 부시 고무 조성물은 상기의 바람직한 실시 예를 통해 설명하고, 그 우수성을 확인하였지만 해당 기술 분야의 당업자라면 하기의 특허 청구 범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다.As described above, the bush rubber composition for a vehicle suspension having excellent ozone resistance and adhesion properties between carbon steel and rubber according to the present invention has been described through the above preferred embodiment and its excellence has been confirmed, but those skilled in the art can use the following It will be understood that various modifications and variations of the present invention can be made without departing from the spirit and scope of the present invention as set forth in the claims.
Claims (3)
고무 기재 100 중량부에 대하여, 카본블랙 60 ~ 80 중량부, 금속산화물 2 ~ 5 중량부, 산화방지제 2 ~ 5 중량부, 왁스 성분 0.5 ~ 3 중량부, 오일 3 ~ 5 중량부, 가교제 1 ~ 2 중량부, 가교촉진제 1 ~ 4 중량부 및 스테아린산 0.5 ~ 1 중량부로 이루어지되,
상기 고무 기재는 NR(Natural Rubber), BR(Butadiene Rubber), SBR(Styrene Butadiene Rubber), CR(Chloroprene Rubber) 중 단독 또는 병용하여 사용하고,
상기 금속산화물은 산화아연을 사용하며,
상기 산화방지제는 N-페닐-N'-이소프로필-p-페닐렌디아민(N-phenyl-N'-isopropyl-p-phenylenediamine), 4,4'-비스(알파,알파-디메틸벤질)디-페닐아민(4,4'-Bis(alpha,alpha- dimethylbenzyl)di -phenylamine), 중합 1,2-디하이드로-2,2,4-트리메틸 퀴놀린(polymerized 1,2-dihydro-2,2,4-trimethyl quinoline) 중에서 단독 또는 병용하여 사용하고,
상기 왁스 성분은 아마이드계 왁스이고,
상기 오일은 파라핀(Paraffin)계 프로세스 오일(Process oil), 화이트 오일(White oil) 중에서 단독 또는 병용하여 사용하며,
상기 가교제는 황 가교제를 사용하고,
상기 가교촉진제는 디페닐구아니딘(diphenylguanidine), 메르캅토벤조티아졸(mercaptobenzothiazole), 디벤조티아졸디술피드(dibenzothiazolyl disulphide), 테트라메틸티우람모노설파이드(tetramethylthiurammonosulfide), 테트라메틸티우람디설파이드(tetramethylthiuramdisulfide)중에서 단독 또는 병용하여 사용하는 것을 특징으로 하는, 내오존성 및 탄소강과 고무의 접착특성이 우수한 자동차 현가장치용 부시 고무 조성물.In the bush rubber composition for automobile suspension comprising a wax component in a rubber base,
Based on 100 parts by weight of the rubber base, 60 to 80 parts by weight of carbon black, 2 to 5 parts by weight of metal oxide, 2 to 5 parts by weight of antioxidant, 0.5 to 3 parts by weight of wax component, 3 to 5 parts by weight of oil, 1 to crosslinking agent 2 parts by weight, 1 to 4 parts by weight of the crosslinking accelerator, and 0.5 to 1 parts by weight of stearic acid,
The rubber base is used alone or in combination among NR (Natural Rubber), BR (Butadiene Rubber), SBR (Styrene Butadiene Rubber), and CR (Chloroprene Rubber),
The metal oxide uses zinc oxide,
The antioxidant is N-phenyl-N'-isopropyl-p-phenylenediamine (N-phenyl-N'-isopropyl-p-phenylenediamine), 4,4'-bis (alpha, alpha-dimethylbenzyl) di- Phenylamine (4,4'-Bis(alpha,alpha-dimethylbenzyl)di-phenylamine), polymerized 1,2-dihydro-2,2,4-trimethylquinoline (polymerized 1,2-dihydro-2,2,4) -trimethyl quinoline) used alone or in combination,
The wax component is an amide-based wax,
The oil is used alone or in combination among paraffin-based process oil and white oil,
The crosslinking agent uses a sulfur crosslinking agent,
The crosslinking accelerator is diphenylguanidine, mercaptobenzothiazole, dibenzothiazolyl disulphide, tetramethylthiurammonosulfide, tetramethylthiuramdisulfide, among A bush rubber composition for automobile suspension having excellent ozone resistance and adhesion between carbon steel and rubber, characterized in that it is used alone or in combination.
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| KR100802811B1 (en) | 2006-09-28 | 2008-02-12 | 현대자동차주식회사 | Component of rubber for stabilizer bar bush |
| KR20130036664A (en) * | 2011-10-04 | 2013-04-12 | 현대자동차주식회사 | Composition for heat-resistant noise preventing stabilizer bar bush |
| KR20190008719A (en) * | 2017-07-17 | 2019-01-25 | 현대자동차주식회사 | Natural Rubber Composition for Stabilizer Bar Bush with High Heat Resistance |
| KR101847372B1 (en) | 2017-08-31 | 2018-04-10 | 주식회사 센텍 | Rubber bush composition for automobile having excellent heat resistance and method for manufacturing rubber bush for automobile using the same |
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| KR102634410B1 (en) * | 2023-09-18 | 2024-02-13 | 평화산업주식회사 | High heat resistance acrylic elastic material composition |
| KR102634385B1 (en) * | 2023-09-20 | 2024-02-07 | 평화산업주식회사 | Composition of high-fatigue materials of bushes for damper mount |
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