KR100308822B1 - High modulus and low hystresis tire rubber composition - Google Patents
High modulus and low hystresis tire rubber composition Download PDFInfo
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- KR100308822B1 KR100308822B1 KR1019990024829A KR19990024829A KR100308822B1 KR 100308822 B1 KR100308822 B1 KR 100308822B1 KR 1019990024829 A KR1019990024829 A KR 1019990024829A KR 19990024829 A KR19990024829 A KR 19990024829A KR 100308822 B1 KR100308822 B1 KR 100308822B1
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 36
- 239000005060 rubber Substances 0.000 title claims abstract description 36
- 239000000203 mixture Substances 0.000 title claims abstract description 19
- 230000020169 heat generation Effects 0.000 claims abstract description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 13
- 239000011593 sulfur Substances 0.000 claims abstract description 13
- 239000006229 carbon black Substances 0.000 claims abstract description 9
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 6
- 239000005062 Polybutadiene Substances 0.000 claims abstract description 6
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 6
- 229920001194 natural rubber Polymers 0.000 claims abstract description 6
- 229920002857 polybutadiene Polymers 0.000 claims abstract description 6
- 239000003381 stabilizer Substances 0.000 claims abstract description 6
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000008117 stearic acid Substances 0.000 claims abstract description 5
- ZNRLMGFXSPUZNR-UHFFFAOYSA-N 2,2,4-trimethyl-1h-quinoline Chemical compound C1=CC=C2C(C)=CC(C)(C)NC2=C1 ZNRLMGFXSPUZNR-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 239000003017 thermal stabilizer Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- MIIBUHIQXLFJFP-UHFFFAOYSA-N 3-methyl-1-[[3-[(3-methyl-2,5-dioxopyrrol-1-yl)methyl]phenyl]methyl]pyrrole-2,5-dione Chemical compound O=C1C(C)=CC(=O)N1CC1=CC=CC(CN2C(C(C)=CC2=O)=O)=C1 MIIBUHIQXLFJFP-UHFFFAOYSA-N 0.000 claims 1
- 239000012744 reinforcing agent Substances 0.000 abstract description 4
- 239000012760 heat stabilizer Substances 0.000 abstract description 3
- -1 accelerators Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- CEJGMRCQWWUGOO-UHFFFAOYSA-N C1(=CC(=CC=C1)CN1C(C(=CC1=O)C)=O)CN1C(C(=CC1=O)C)=O.C1(=CC(=CC=C1)CN1C(C(=CC1=O)C)=O)CN1C(C(=CC1=O)C)=O Chemical compound C1(=CC(=CC=C1)CN1C(C(=CC1=O)C)=O)CN1C(C(=CC1=O)C)=O.C1(=CC(=CC=C1)CN1C(C(=CC1=O)C)=O)CN1C(C(=CC1=O)C)=O CEJGMRCQWWUGOO-UHFFFAOYSA-N 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical group [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000010692 aromatic oil Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- UEZWYKZHXASYJN-UHFFFAOYSA-N cyclohexylthiophthalimide Chemical compound O=C1C2=CC=CC=C2C(=O)N1SC1CCCCC1 UEZWYKZHXASYJN-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000007017 scission Effects 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- 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
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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)
- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
Abstract
본 발명은 고강도 저발열 특성을 갖는 타이어 고무 조성물에 관한 것으로서, 좀더 상세하게는 천연고무와 부타디엔 고무가 블렌드된 고무 조성물에 보강제로서 카본블랙, 유황, 촉진제, 스테아르산, 리버젼(reversion) 안정제, 열안정제, ZnO를 첨가하여 제조되는 것을 특징으로 하는 고강도 저발열 특성을 갖는 타이어 고무 조성물에 관한 것이다.The present invention relates to a tire rubber composition having high strength and low heat generation characteristics, and more particularly, to a rubber composition blended with natural rubber and butadiene rubber, as a reinforcing agent, carbon black, sulfur, accelerators, stearic acid, revision stabilizer, The present invention relates to a tire rubber composition having high strength and low heat generation characteristics, which is prepared by adding a heat stabilizer and ZnO.
Description
본 발명은 고강도 저발열 특성을 갖는 타이어 고무 조성물에 관한 것으로서, 좀더 상세하게는 천연고무와 부타디엔 고무가 블렌드된 고무 조성물에 보강제로서 카본블랙, 유황, 촉진제, 스테아르산, 리버젼(reversion) 안정제, 열안정제, ZnO 을 첨가하여 제조되는 것을 특징으로 하는 고강도 저발열 특성을 갖는 타이어 고무 조성물에 관한 것이다.The present invention relates to a tire rubber composition having high strength and low heat generation characteristics, and more particularly, to a rubber composition blended with natural rubber and butadiene rubber, as a reinforcing agent, carbon black, sulfur, accelerators, stearic acid, revision stabilizer, The present invention relates to a tire rubber composition having high strength and low heat generation characteristics, which is prepared by adding a heat stabilizer and ZnO.
타이어에 사용되는 고강도 고무는 차량의 하중을 고르게 분산시키는 아펙스(Apex)나 비드(bead) 충진고무로 주로 사용되어 왔다. 이들 고무는 경도를 높이기 위해 주로 보강성 수지를 사용하기 때문에 타이어 주행시에 발열이 매우 높다. 또한 탄성력이 낮아 이들 고무를 굴신운동이 심한 타이어의 사이드월(sidewall) 부위에 적용할 경우 문제가 심각해진다.High-strength rubber used in tires has been mainly used as Apex or bead-filled rubber to evenly distribute the load of the vehicle. Since these rubbers mainly use reinforcing resins to increase their hardness, heat generation is very high during tire running. In addition, the problem is severe when the rubber is applied to the sidewall of the tire with high elasticity due to low elastic force.
종래에는 펑크 후에도 주행할 수 있도록 타이어의 내부에 고무 스폰지나 가벼운 탄성체를 충진시키는 제품이 출시되었지만 이들은 타이어가 상당히 무거워지고 에너지 소비가 많으며 발열에 의한 제품의 수명이 크게 하락되므로 이들의 사용은 극히 일부로 제한되어 왔다.In the past, products that filled rubber sponges or light elastic bodies to the inside of the tires to run after puncture have been released, but they are extremely heavy, energy-consuming, and the life of the product due to heat is greatly reduced. It has been limited.
자동차가 고속으로 주행하는 중에 갑작스런 타이어 펑크가 발생하면 운전자는 위험에 처하게 되는데 이를 해결하기 위해서는 펑크가 발생하여도 안정하게 주행할 수 있는 타이어의 개발이 필요하다. 타이어가 펑크난 상태에서 안정성을 유지하기 위해서는 사이드월(sidewall) 부위에 강도가 매우 높은 고무를 부착하여 자동차의 하중을 지지할 수 있어야 하며, 또한 펑크 발생시에 계속적으로 가혹한 굴곡운동을 받기 때문에 이때 발생되는 열의 발생을 최소화시키고 과도한 열에도 견딜수 있는 내열성이 높은 고무이어야만 한다.If a sudden tire puncture occurs while the car is traveling at high speed, the driver is in danger. To solve this problem, it is necessary to develop a tire that can stably run even when a puncture occurs. In order to maintain stability in the flat state of the tires, high strength rubber should be attached to the sidewall to support the load of the vehicle. It must be a rubber with high heat resistance to minimize the generation of heat and to withstand excessive heat.
본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 강도가 매우 높으면서 주행중에 열 발생이 낮은 고무 조성물을 개발하여 이를 타이어의 사이드월 부위에 부착시켜 주행중에 펑크가 발생될지라도 차량의 하중을 충분히 지지할 수 있도록 하므로써 타이어를 수리할 수 있는 카센터까지 안전하게 가서 타이어를 수리할 수 있도록 하는 타이어 고무 조성물을 제공하는 것이다.The present invention has been made to solve the above problems, an object of the present invention is to develop a rubber composition having a very high strength and low heat generation during driving and attaching it to the sidewall of the tire to generate a puncture during driving Even if it is possible to provide sufficient support for the load of the vehicle by providing a tire rubber composition that can safely go to the car center to repair the tire to repair the tire.
본 발명은 고강도 저발열 특성을 갖는 타이어 고무 조성물에 관한 것으로서, 좀더 상세하게는 천연고무와 부타디엔 고무가 블렌드된 고무 조성물에 보강제로서 카본블랙 50∼90phr, 유황 4∼7phr, 촉진제 1∼3phr, 스테아르산 3∼6phr, 리버젼 안정제 1∼3phr, 열안정제 0.5∼4phr, ZnO 6∼12phr을 첨가하여 제조되는 것을 특징으로 하는 고강도 저발열 특성을 갖는 타이어 고무 조성물에 관한 것이다.The present invention relates to a tire rubber composition having high strength and low heat generation properties. More specifically, 50 to 90 phr of carbon black, 4 to 7 phr of sulfur, accelerators of 1 to 3 phr, stearic agent as a reinforcing agent in a rubber composition blended with natural rubber and butadiene rubber The present invention relates to a tire rubber composition having high strength and low heat generation characteristics, which is prepared by adding acid 3 to 6 phr, revision stabilizer 1 to 3 phr, thermal stabilizer 0.5 to 4 phr, and ZnO 6 to 12 phr.
본 발명에서 사용된 고무는 발열을 최소로 하기 위하여 천연고무와 저발열 부타디엔 고무를 90/10∼60/40 비로 브렌드 하였다.The rubber used in the present invention was blended with natural rubber and low heat generating butadiene rubber at a ratio of 90/10 to 60/40 in order to minimize heat generation.
본 발명에서 사용된 보강제로서는 입자가 큰 카본블랙 N550과 N660을 50∼90phr 적용하여 가공성과 발열 특성을 좋게 하였다. 카본블랙의 입자가 크면 고무를 배합하는 과정에서 발열이 낮고 배합고무의 시트 상태가 좋아지며 제품의 주행중에도 발열이 낮아지는 특징이 있다.As the reinforcing agent used in the present invention, 50 to 90 phr of carbon black N550 and N660 having large particles were applied to improve workability and exothermic properties. If the carbon black particles are large, the heat generation is low in the process of compounding rubber, the sheet state of the compounded rubber is improved, and the heat generation is low even while the product is running.
고무 배합물의 모듈러스(Modulus)는 차량의 하중 지지에 가장 중요한 인자이다. 모듈러스가 높아지면 고무의 굽힘강도가 증가되어 타이어의 펑크 후에도 차량의 하중을 지지하여 사이드월 부위가 바퀴(wheel)의 림(rim) 부위와 직접 접촉되는 것을 방지하므로 타이어를 보호할 수 있다.Modulus of the rubber compound is the most important factor for supporting the load of the vehicle. As the modulus increases, the bending strength of the rubber is increased to support the load of the vehicle even after the puncture of the tire, thereby preventing the sidewall portion from directly contacting the rim portion of the wheel, thereby protecting the tire.
본 발명에서 사용된 유황은 모듈러스 특성을 높이기 위해서 고무에 불용인 유황(Crystex 80% 황)을 4∼7phr 사용하였으며 유황의 양은 고무의 망상결합의 양을 결정한다. 유황은 미가류된 고무중에서 용해되어 표면으로 이동되므로 고무간의 점착력을 감소시킨다. 본 발명에서 사용된 유황 또한 배합과정에서 배합열에 의해 분해되어 고무에 용해되므로 이를 방지시키기 위해서는 고무 배합물의 점도를 낮춰야 한다.Sulfur used in the present invention used sulfur insoluble in the rubber (Crystex 80% sulfur) 4-7phr to improve the modulus properties and the amount of sulfur determines the amount of the reticular bond of the rubber. Sulfur dissolves in unvulcanized rubber and migrates to the surface, reducing the adhesion between rubbers. Sulfur used in the present invention is also decomposed by the heat of mixing in the mixing process is dissolved in the rubber, in order to prevent this, the viscosity of the rubber compound should be lowered.
이를 위해 본 발명에서는 스테아르산을 3∼6phr 적용하여 모듈러스 하락 없이 점도를 낮게 하였다.To this end, in the present invention, stearic acid was applied to 3 to 6 phr to lower the viscosity without decreasing the modulus.
본 발명에서 유황의 결합을 활성화시키기 위하여 가황촉진제로 N-t-부틸-2-벤조티아졸 설펜아미드(N-t-butyl-2-benzothiazole sulfenamide)를 1∼3phr 사용하였으며, 일반적으로 촉진제의 함량이 높아지면 모노설파이드와 디설파이드의 결합비율이 높아져서 열에 대한 안정성을 높이지만 굴곡 특성에는 단점으로 작용한다.In the present invention, 1 to 3 phr of Nt-butyl-2-benzothiazole sulfenamide was used as a vulcanization accelerator to activate sulfur binding. The bond ratio of sulfide and disulfide is increased to increase heat stability, but it is a disadvantage in bending characteristics.
또한 본 발명에서는 주행중의 열에 의한 유황결합의 절단을 방지하기 위해서 리버젼(reversion) 안정제로서 1,3-비스(시트라콘이미도메틸)벤젠(1,3-bis(citraconimidomethyl)benzene)(상품명:Perkalink 900)을 1∼3phr 첨가하였으며, 이는 열에 의해 절단된 가교결합을 재결합시켜 물성을 안정시키는 역할을 한다.In addition, in the present invention, 1,3-bis (citraconimidomethyl) benzene (1,3-bis (citraconimidomethyl) benzene) (trade name: Perkalink) is used as a reversion stabilizer to prevent the cleavage of sulfur bonds due to heat while driving. 1 to 3 phr of 900) was added, which serves to stabilize physical properties by recombining the heat-linked crosslinks.
본 발명에서 열 안정제로는 오존노화방지제 6PPD(N-1,3-디메틸-N'-페닐-p-페닐렌디아민)와 산화방지제 RD(폴리머화된 2,2,4-트리메틸-1,2-디하이드로퀴놀린)을 0.5∼4phr 배합하였다.In the present invention, the heat stabilizer is ozone antioxidant 6PPD (N-1,3-dimethyl-N'-phenyl-p-phenylenediamine) and antioxidant RD (polymerized 2,2,4-trimethyl-1,2 -Dihydroquinoline) was blended at 0.5 to 4 phr.
실시예 및 비교예Examples and Comparative Examples
표 1과 같은 조성비로 고무 조성물을 제조하였으며, 각각의 물성을 측정하여 하기 표 2에 나타내었다.Rubber compositions were prepared in the same composition ratios as in Table 1, and the physical properties thereof were shown in Table 2 below.
*스코치 지연제 : N-시클로헥실티오플탈이미드(N-cyclohexylthiophthalimide)* Scotch retardant: N-cyclohexylthiophthalimide
표 2에 나타난 바와 같이, 각 성분을 본 발명에서 한정한 범위로 조절하고, 특히 리버젼 안정제인 Perkalink 900을 첨가한 실시예는 비교예에 비하여 모듈러스와 인장강도가 훨씬 크다는 것을 알 수 있다.As shown in Table 2, it can be seen that the examples in which each component is adjusted to the range defined in the present invention, and in particular, the addition of the revision stabilizer, Perkalink 900, have a much higher modulus and tensile strength than the comparative example.
이상과 같이 본 발명에 따른 타이어 고무 조성물은 강도와 모듈러스가 우수하고, 저발열 특성을 가지므로 주행중에 갑작스런 펑크가 발생할 경우에도 고강도의 고무 조성물이 차량의 하중을 지지하므로 운전자의 생명을 보장해 주고, 안전하게 차량을 조정할 수 있으며 타이어 수리소까지 타이어 교환 없이 갈 수 있으며, 현대 대부분의 차량이 소지하는 스페어 타이어를 가지고 다닐 필요가 없어져 자동차의 연료 절감은 물론 차량 트렁크의 공간이 넓어지고 운전자에게 안정감을 갖게 한다. 또한 발열을 최소화시키고 탄성을 높여 타이어의 조종 안정성과 수명을 연장시킬 수 있는 특성을 갖는다.As described above, the tire rubber composition according to the present invention has excellent strength and modulus, and has a low heat generation property, thereby ensuring a driver's life because the high-strength rubber composition supports the load of the vehicle even when a sudden puncture occurs during driving. Safely maneuver your car and go to the tire repair shop without replacing your tires, eliminating the need to carry spare tires that most modern cars carry, saving fuel and increasing the space in the trunk of your car . In addition, it has a characteristic of minimizing heat generation and increasing elasticity to extend the steering stability and life of the tire.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990024829A KR100308822B1 (en) | 1999-06-28 | 1999-06-28 | High modulus and low hystresis tire rubber composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990024829A KR100308822B1 (en) | 1999-06-28 | 1999-06-28 | High modulus and low hystresis tire rubber composition |
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| Publication Number | Publication Date |
|---|---|
| KR20010004208A KR20010004208A (en) | 2001-01-15 |
| KR100308822B1 true KR100308822B1 (en) | 2001-09-28 |
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| KR1019990024829A KR100308822B1 (en) | 1999-06-28 | 1999-06-28 | High modulus and low hystresis tire rubber composition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100746337B1 (en) | 2006-08-17 | 2007-08-03 | 금호타이어 주식회사 | Rubber compound having high intensity and low heat-generation for tire |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030027970A (en) * | 2001-09-18 | 2003-04-08 | 금호산업 주식회사 | Tread compound for high speed racing car |
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1999
- 1999-06-28 KR KR1019990024829A patent/KR100308822B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100746337B1 (en) | 2006-08-17 | 2007-08-03 | 금호타이어 주식회사 | Rubber compound having high intensity and low heat-generation for tire |
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| Publication number | Publication date |
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| KR20010004208A (en) | 2001-01-15 |
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