KR0179711B1 - Cap-tread rubber composition for tire of large size - Google Patents
Cap-tread rubber composition for tire of large size Download PDFInfo
- Publication number
- KR0179711B1 KR0179711B1 KR1019950065280A KR19950065280A KR0179711B1 KR 0179711 B1 KR0179711 B1 KR 0179711B1 KR 1019950065280 A KR1019950065280 A KR 1019950065280A KR 19950065280 A KR19950065280 A KR 19950065280A KR 0179711 B1 KR0179711 B1 KR 0179711B1
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- tire
- rubber composition
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- tread rubber
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Classifications
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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
- C08L7/00—Compositions of natural rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0016—Compositions of the tread
-
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
- C08L2666/04—Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
- C08L2666/08—Homopolymers or copolymers according to C08L7/00 - C08L21/00; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/54—Inorganic substances
- C08L2666/55—Carbon
Abstract
본 발명은 대형 타이어용 캡트레드(CAP TREAD) 고무 조성물에 관한것으로서, 더욱 상세하게는 조성물의 내마모 성능을 향상시켜 스틸 래디얼 대형 타이어의 사용수명을 증가시키는 캡트레드 고무 조성물에 관한 것이다.The present invention relates to a cap tread rubber composition for a large tire, and more particularly, to a cap tread rubber composition for improving the wear resistance of the composition to increase the service life of a steel radial oversize tire.
본 발명은 디엔계 천연고무 70 내지 100 중량부, 부타디엔 고무 0 내지 30 중량부, 카본 블랙 40 내지 60 중량부와 통상의 기타 배합제로 이루어지는 것을 특징으로 하는 대형 타이어용 캡트레드 고무조성물이다.The present invention is a cap tread rubber composition for large tires, comprising 70 to 100 parts by weight of diene-based natural rubber, 0 to 30 parts by weight of butadiene rubber, 40 to 60 parts by weight of carbon black and other conventional compounding agents.
상기와 같이 본 발명에 따른 대형 타이어용 캡트레드 고무 조성물을 사용함으로써 타이어의 내마모 성능을 향상하여 전체적인 타이어 수명을 향상시킬 수 있다.By using the cap tread rubber composition for large tires according to the present invention as described above it is possible to improve the wear resistance of the tire to improve the overall tire life.
Description
본 발명은 대형 타이어용 캡트레드(CAP TREAD) 고무 조성물에 관한 것으로서, 더욱 상세하게는 조성물의 내마모 성능을 향상시켜 스틸 래디얼 대형 타이어의 사용 수명을 증가시키는 캡트레드 고무 조성물에 관한 것이다.The present invention relates to a cap tread rubber composition for large tires, and more particularly, to a cap tread rubber composition for improving the wear resistance of the composition to increase the service life of steel radial large tires.
일반적으로 대형 타이어용 캡트레드 고무의 경우 장거리 고속 주행시 트레드 및 언더트레드 부위의 발열로 야기되는 타이어의 폭발 및 분리 현상을 방지하게 위한 조성물 자체의 저 발열성과, 사용 수명을 높이기 위한 내마모 성능이 요구된다.In general, the cap tread rubber for large tires requires low heat generation of the composition itself to prevent explosion and separation of the tire caused by heat generation in the tread and undertread areas during long-distance high-speed driving, and wear resistance to increase the service life. do.
종래의 고무의 발열을 낮추는 방법으로는 충진제로 사용하는 카본 블랙의 비표면적을 작게 하는 것이 널리 사용되고 있으나, 이 경우 비표면적이 작은 카본 블랙을 사용함으로 인해 조성물의 내마모 성능이 저하되어, 타이어의 전체 수명을 줄이는 결과를 가져왔다.As a method of lowering the heat generation of the conventional rubber, it is widely used to reduce the specific surface area of the carbon black used as the filler, but in this case, the wear resistance of the composition is reduced due to the use of the carbon black having a small specific surface area, and thus the tire The result is a reduction in the overall lifetime.
또한, 최근 캡트레드와 인접하여 위치하며 발열이 상대적으로 적은 언더트레드(UNDERTERRED)부의 고무 조성물 자체의 부피를 증가시켜서 전체 트레드 부위의 발열을 줄이는 방법과 언더트레드용 고무 조성물의 자체의 발열을 매우 줄이는 방법등이 연구되어 타이어의 발열성을 억제하는 방법이 연구되고 있지만 타이어의 내구성 향상에는 큰 도움을 주지 못하고 있다.In addition, by increasing the volume of the rubber composition itself, which is located near the cap tread and has a relatively low heat generation, a method of reducing the heat generation of the entire tread area and a very low heat generation of the rubber composition for the under tread. Methods and the like have been researched, and methods for suppressing tire heat generation have been studied, but they have not helped to improve tire durability.
이에 본 발명은 비표면적이 매우 큰 카본 블랙을 사용하여 내마모 성능을 향상시키는 대형 래디얼 타이어용 캡트레드 고무 조성물을 제공하는데 목적이 있다.Accordingly, an object of the present invention is to provide a cap tread rubber composition for a large radial tire that improves abrasion resistance by using carbon black having a very large specific surface area.
이하 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.
본 발명은 디엔계 천연고무 70 내지 100 중량부, 부타디엔 고무 0 내지 30 중량부, 카본 블랙 40 내지 60 중량부와 통상의 기타 배합제로 이루어지는 것을 특징으로 하는 대형 타이어용 캡트레드 고무 조성물이다.The present invention is a cap tire rubber composition for a large tire, comprising 70 to 100 parts by weight of diene-based natural rubber, 0 to 30 parts by weight of butadiene rubber, 40 to 60 parts by weight of carbon black and other conventional compounding agents.
이하, 본 발명을 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail.
본 발명에서 사용되는 디엔계 천연고무는 국제 표준 견본에 의한 암갈색 내지 황색의 리브드 스모크 시이트(RIBBED SMOKED SHEET)를 겹쳐 만든 고무 덩어리 약 70 내지 100중량부를 사용한다.The diene-based natural rubber used in the present invention uses about 70 to 100 parts by weight of a rubber mass made by overlapping a dark brown to yellow ribbed smoke sheet (RIBBED SMOKED SHEET) by an international standard sample.
또한, 본 발명에서 사용되는 부타디엔 고무는 비중이 0.91±0.02 이고 회분이 최대 0.5%, 휘발분이 최대 0.75%, 무늬(MOONEY) 점도는 ML1+4가 100℃에서 40 내지 48이다. 본 발명에서는 상기의 부타디엔 고무 약 0 내지 30중량부를 사용한다.In addition, butadiene rubber used in the present invention has a specific gravity of 0.91 ± 0.02, ash content up to 0.5%, volatile content up to 0.75%, MOONEY viscosity of ML1 + 4 is 40 to 48 at 100 ℃. In the present invention, about 0 to 30 parts by weight of the butadiene rubber is used.
본 발명에서 사용하는 카본 블랙은 pH가 6-10이고 I2흡착이 155-185 mg/g, DBP 흡착이 120-140 cc/100g이며 착색도 100 이상, 톨루엔 착색투과도는 80% 이상인 것을 약 40 내지 60중량부를 사용한다.The carbon black used in the present invention has a pH of 6-10, an I 2 adsorption of 155-185 mg / g, a DBP adsorption of 120-140 cc / 100g, a color degree of 100 or more, and a toluene color permeability of about 40 to about 40 to Use 60 parts by weight.
상기에서, 카본 블랙의 함량이 40중량부 이하이면, 고무 조성물의 내마모성 40중량부 이하일 경우에는 내마모성이 저하되고, 60중량부 이상인 경우에는 무늬 점도가 높아져 가공성이 나쁘고, 발열이 높아 실용적이지 못하다.In the above, when the content of carbon black is 40 parts by weight or less, the wear resistance of the rubber composition is 40 parts by weight or less, and when it is 60 parts by weight or more, the pattern resistance becomes high, the workability is poor, and the heat generation is not practical.
이밖에 또 다른 기타 배합제로는 통상적인 배합량으로 첨가하였는 바, 즉, 촉진제로서 노말 터트부틸 2 벤조디아질 설펜아미이드 2 중량부, 가류제로서 황 1.5 중량부, 스테아린산 2 중량부, 산화아연 3 중량부이다.Other other compounding agents were added in conventional compounding amounts, that is, 2 parts by weight of normal tertbutyl 2 benzodiazyl sulfenamide as accelerator, 1.5 parts by weight of sulfur as vulcanizing agent, 2 parts by weight of stearic acid, and zinc oxide 3 Parts by weight.
또한 고무의 노화방지제로서 노말-1, 3-디메티부틸 노말 페닐 파라핀 페닐렌디아민 2 중량부, 폴리-2,2,4-트리메틸-1, 2-디하이드로 퀴놀린 1 중량부 및 왁시 하이드로 카본 1중량부를 사용한다.Also, as an anti-aging agent of rubber, 2 parts by weight of normal-1, 3-dimethybutyl normal phenyl paraffin phenylenediamine, 1 part by weight of poly-2,2,4-trimethyl-1, 2-dihydroquinoline and waxy hydrocarbon 1 Use parts by weight.
이하 본 발명을 실시예에 의거 더욱 상세히 설명하면 다음과 같으며, 본 발명은 상기 실시예에 한정하는 것이다.Hereinafter, the present invention will be described in more detail with reference to Examples. The present invention is limited to the above Examples.
[실시예 1 내지 9][Examples 1 to 9]
다음 표 1에 나타난 바와 같이 고무를 변량하고 카본 블랙의 종류를 변경하면서 반바리 혼합기(BANBURY MIXER) 및 오픈 밀(OPEN MILL)을 이용하여 고무 조성물을 제조한다. 상기 제조된 고무 조성물에 대한 물성 시험을 다음과 같은 방법으로 평가하였다.Next, as shown in Table 1, the rubber composition is prepared using a BANBURY MIXER and an OPEN MILL while varying the rubber and changing the type of carbon black. The physical property test for the rubber composition prepared above was evaluated in the following manner.
[내마모 성능 시험][Abrasion Resistance Test]
원판형의 연마석과 원판상의 시험편을 각각 독립하여 회전시키고 압착된 연마석과 시험편 사이에 탄화규소를 낙하 시켜, 시험편의 마모되는 면이 연마석과 접착되는 것을 방지하며 연마석과 시험편 상호간의 표면 속도차에 따라 생기는 시험편의 마모감량을 측정하는 람본(LAMBOURN) 마모 시험기로 측정한 결과를 다음 표 1에 나타내었다.By rotating the disk-shaped abrasive stone and the test specimen on the disk independently and dropping the silicon carbide between the compressed abrasive stone and the specimen, to prevent the worn surface of the specimen from adhering to the abrasive stone and according to the surface speed difference between the abrasive stone and the specimen Table 1 shows the results measured by the LAMBOURN abrasion tester to measure the wear loss of the test piece.
표 1에 나타낸 물성 시험 값은 비교예 1의 물성 시험 값을 기준(100)으로 하여 나타낸 값으로 숫자가 높을수록 내마모 성능이 우수함을 나타낸다.The physical property test values shown in Table 1 are the values shown based on the physical property test values of Comparative Example 1 as a reference (100), and the higher the number, the better the wear resistance performance.
[비교예 1 내지 18][Comparative Examples 1 to 18]
다음 표 2에 나타낸 바와 같이 고무의 조성을 사용하고, 카본 블랙의 종류를 변경하고 변량 시킨 것 이외는 상기 실시예 1과 동일하게 실시하였다. 상기 비교예로 얻어진 고무 조성물의 물성을 상기 실시예 1과 동일하게 측정하여 다음 표 2에 나타냈다.As shown in Table 2, it was carried out in the same manner as in Example 1 except that the composition of the rubber was used and the type of carbon black was changed and varied. The physical properties of the rubber composition obtained in the comparative example were measured in the same manner as in Example 1, and are shown in the following Table 2.
다음 표 2에 나타낸 값은 비교예 1의 물성 시험 값을 기준(100)으로 하여 나타낸 값으로 숫자가 높을수록 내마모 성능이 우수함을 나타낸다.The value shown in the following Table 2 is a value represented by using the property test value of Comparative Example 1 as a reference (100), the higher the number, the better the wear resistance.
상기 표 1에서 알 수 있는 바와 같이 본 발명으로 하여 제조된 고무 조성물을 사용할 경우에는 종래 고무에 비해 향상된 내마모 성능을 가지는 것으로 나타났다.As can be seen in Table 1, when the rubber composition prepared according to the present invention is used, it has been found to have improved wear resistance compared to conventional rubber.
상기 표 2는 카본 블랙의 종류와 배합량을 변화시키면서 물성 시험을 실시한 것으로 적정한 요구 특성을 부응할 수 있는 카본 블랙의 종류와 배합량에 대해서 나타내었다. 본 발명의 카본 블랙을 사용하지 않을 경우에는 무늬 점도가 높아 가공성이 나쁘고, 발열이 너무 높아질 수 있으므로 실용적이지 못하다.In Table 2, physical properties were tested while changing the type and amount of the carbon black. When the carbon black of the present invention is not used, it is not practical because the pattern viscosity is high and the workability is bad, and the heat generation may be too high.
상기와 같이 본 발명에 따른 대형 타이어용 캡트레드 고무 조성물을 사용함으로써 타이어의 내마모 성능을 향상하여 전체적인 타이어 수명을 향상시킬 수 있다.By using the cap tread rubber composition for large tires according to the present invention as described above it is possible to improve the wear resistance of the tire to improve the overall tire life.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950065280A KR0179711B1 (en) | 1995-12-29 | 1995-12-29 | Cap-tread rubber composition for tire of large size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950065280A KR0179711B1 (en) | 1995-12-29 | 1995-12-29 | Cap-tread rubber composition for tire of large size |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970042730A KR970042730A (en) | 1997-07-26 |
| KR0179711B1 true KR0179711B1 (en) | 1999-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950065280A KR0179711B1 (en) | 1995-12-29 | 1995-12-29 | Cap-tread rubber composition for tire of large size |
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| Country | Link |
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| KR (1) | KR0179711B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100445833B1 (en) * | 2001-11-26 | 2004-08-30 | 한국타이어 주식회사 | Radial Tire tread |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100333826B1 (en) * | 1999-10-12 | 2002-04-25 | 조충환 | A cap tread rubber composition for a large tire |
| KR100395889B1 (en) * | 2000-11-30 | 2003-08-27 | 금호산업주식회사 | Tire Tread Rubber Composition for passenger car |
-
1995
- 1995-12-29 KR KR1019950065280A patent/KR0179711B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100445833B1 (en) * | 2001-11-26 | 2004-08-30 | 한국타이어 주식회사 | Radial Tire tread |
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| Publication number | Publication date |
|---|---|
| KR970042730A (en) | 1997-07-26 |
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