KR100188809B1 - Rubber composition for hump-strip of a tire - Google Patents
Rubber composition for hump-strip of a tire Download PDFInfo
- Publication number
- KR100188809B1 KR100188809B1 KR1019960030547A KR19960030547A KR100188809B1 KR 100188809 B1 KR100188809 B1 KR 100188809B1 KR 1019960030547 A KR1019960030547 A KR 1019960030547A KR 19960030547 A KR19960030547 A KR 19960030547A KR 100188809 B1 KR100188809 B1 KR 100188809B1
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- rubber
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- rubber composition
- carbon black
- brother
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0645—Devices for inserting vulcanising cores, i.e. bladders, into the tyres; Closing the press in combination herewith
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0654—Flexible cores therefor, e.g. bladders, bags, membranes, diaphragms
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/006—Additives being defined by their surface area
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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)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
본 발명은 고열전도성의 타이어 가류용 브라더 고무 조성물에 관한 것으로, 더욱 상세하게는 열전도성이 우수한 카본 블랙을 사용하는 것을 특징으로 하는 고열전도성을 갖는 타이어 가류용 브라더 고무 조성물에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high thermal conductivity tire rubber brother rubber composition, and more particularly, to a high temperature conductive tire rubber brother rubber composition comprising carbon black having excellent thermal conductivity.
본 발명은 자동차용 타이어 가류 브라더용 고무 조성물에 있어서, 평균입자경이 38 내지 44nm이고, N2표면적이 45내지 65㎡/g이고, DBP흡착가가 165내지 190cm3/100g인 카본 블랙을 고무 100중량부에 대해 30중량부 내지 70중량부를 사용하는 것을 특징으로 하는 고열전도성을 갖는 타이어 가류용 브라더 고무조성물이다.The present invention relates to a vehicle tire for vulcanizing the rubber composition for a brother, and the average particle size of 38 to 44nm, N 2 surface area of 45 to 65㎡ / g and, the DBP adsorption value of 165 to 190cm 3 / 100g, 100 parts by weight of carbon black rubber A rubber vulcanizing rubber composition for tire vulcanization having a high thermal conductivity, characterized by using 30 parts by weight to 70 parts by weight with respect to the part.
Description
본 발명은 고열전도성의 타이어 가류용 브라더 고무 조성물에 관한 것으로, 더욱 상세하게는 열전도성이 우수한 카본 블랙을 사용하는 것을 특징으로 하는 고열전도성 타이어 가류용 브라더 고무 조성물에 관한 것이다.The present invention relates to a high thermal conductivity tire rubber brother rubber composition, and more particularly to a high thermal conductivity tire rubber brother rubber composition, characterized in that the use of carbon black excellent in thermal conductivity.
브라더(Bladder)는 타이어의 외관을 결정하기 위하여 가류 공정시에 그린 타이어 내부에 사용되는 포대 모양의 얇은 고무이다. 이러한 브라더는 가류시의 가혹한 조건을 이겨내어야 하고, 가류 시간을 단축시키므로서 타이어의 생산성을 증진시키기 위해 우수한 열전도성 및 내구성이 요구된다.The Brother is a bag-shaped thin rubber used inside the green tire during the vulcanization process to determine the appearance of the tire. These brothers have to withstand the harsh conditions of vulcanization and require excellent thermal conductivity and durability to improve tire productivity while shortening vulcanization time.
또한, 타이어의 가류시에 타이어 내부 형상을 만들고 타이어 가류에 필요한 열원을 공급하는데 사용하는 가류브라더는 부틸고무 및 아세틸렌 블랙을 사용하여 왔다. 고무 조성물들은 일반적으로 열전도도가 매우 낮으며, 그에 따라서 고무의 열전도도를 높이려는 노력이 계속되어 왔다. 그 중의 하나가 아세틸렌 블랙을 사용하는 것인데, 이 카본 블랙은 입자가 매우 미세하여 고무 상에 혼입이 매우 어려워 많은 양을 사용할 수 없어 ISAF카본 블랙을 혼합하여 사용하여 왔다.In addition, the vulcanizing broth used to make the inner shape of the tire during the vulcanization of the tire and to supply the heat source necessary for the vulcanization of the tire has used butyl rubber and acetylene black. Rubber compositions generally have very low thermal conductivity, and so efforts have been made to increase the thermal conductivity of rubber. One of them is the use of acetylene black, which has been used in combination with ISAF carbon black because the particles are very fine and are very difficult to be incorporated on the rubber.
일반적으로 카본 블랙의 혼입량이 많아지면 열전도도 또는 전기 전도도가 높아진다. 따라서 열전도도를 올리려면 카본 블랙의 혼입량을 올려야 한다. 그러나 카본 블랙의 혼입량은 다음과 같은 수학식(1)으로 한계치를 갖고 있다.In general, the greater the amount of carbon black mixed, the higher the thermal or electrical conductivity. Therefore, to increase the thermal conductivity, the amount of carbon black must be increased. However, the mixing amount of carbon black has a limit in the following equation (1).
위식에서, V는 카본블랙 밀도이고, d는 DBP-흡수(cm3/g)이다.In the above formula, V is carbon black density and d is DBP-absorption (cm 3 / g).
본 발명은 타이어 가류 브라더 조성물의 기존의 문제점을 해결하는 것으로 입자경이 크고, 구조 발달한 카본 블랙을 다량 사용하여 고 열전도도를 갖는 타이어 가류용 브라더 조성물을 제공하는 것을 기술적인 과제로 한다.The present invention is to solve the existing problems of the tire vulcanization brother composition to provide a tire composition brother composition for tire vulcanization having a high thermal conductivity by using a large amount of carbon black having a large particle diameter and structural development.
본 발명은 자동차용 타이어 가류 브라더용 고무 조성물에 있어서, 평균입자경이 38 내지 44nm이고, N2표면적이 45내지 65㎡/g이고, DBP흡착가가 165 내지 190cm3/100g인 카본 블랙을 고무 100중량부에 대해 30중량부 내지 70중량부를 사용하는 것을 특징으로 하는 고열전도성을 갖는 타이어 가류용 브라더 고무 조성물이다.The present invention relates to a rubber composition for automobile tire vulcanization brothers, the average particle diameter of 38 to 44nm, N 2 surface area of 45 to 65㎡ / g, DBP adsorption value of 165 to 190cm 3 / 100g of carbon black rubber 100 weight A rubber vulcanizing rubber composition for tire vulcanization having a high thermal conductivity, characterized by using 30 parts by weight to 70 parts by weight with respect to the part.
이하, 본 발명을 더욱 상게히 설명하면 다음과 같다.Hereinafter, the present invention will be described more in detail as follows.
본 발명에서 사용하는 카본 블랙의 평균 입자경은 38 내지 44nm인 것으로 평균 입자경이 38nm 미만일 경우에는 배합 및 압출시 가공이 어렵고, 44nm를 초과할 경우에는 카본 블랙의 보강성이 떨어지므로 고무 조성물의 내구성 향상을 기대할 수 없게 된다.The average particle diameter of the carbon black used in the present invention is 38 to 44nm, when the average particle diameter is less than 38nm, it is difficult to process during compounding and extrusion, and when it exceeds 44nm, the reinforcement of the carbon black is poor, so the durability of the rubber composition is improved. You can't expect it.
본 발명에서 사용하는 카본 블랙의 DBP흡착가는 165 내지 190cm3/100g인 것을 사용하는데, 165cm3/100g미만일 경우에는 열전도성의 향상을 기대할 수 없고, 190cm3/100g이상인 경우에는 카본 블랙의 가격이 비싸 제조비용을 향상시킨다.DBP adsorption value of the carbon black used in the present invention is used in the 165 to 190cm 3 / 100g, when less than 165cm 3 / 100g can not be expected to improve the thermal conductivity, when the cost of more than 190cm 3 / 100g carbon black is expensive Improve manufacturing costs
본 발명에 사용되는 상기한 바와 같이 정의된 카본 블랙은 고무 100중량부에 대해 30 내지 70중량부를 사용하고, 특히 고무 100중량부에 대해 50 내지 60 중량부를 사용하는 것이 바람직하다. 상기의 본 발명에 의한 카본 블랙이 30중량부 미만인 경우에는 열 전도성의 향상을 기대할 수 없고, 70중량부 이상인 경우에는 배합 및 압출시 가공이 어려우며 내피로성이 떨어지게 된다.The carbon black defined as used in the present invention is used 30 to 70 parts by weight based on 100 parts by weight of rubber, and particularly preferably 50 to 60 parts by weight based on 100 parts by weight of rubber. When the carbon black according to the present invention is less than 30 parts by weight can not be expected to improve the thermal conductivity, when more than 70 parts by weight it is difficult to process during compounding and extrusion and the fatigue resistance is poor.
통상적으로 카본 블랙은 제조방법에 따라 여러 가지 형태를 가지고 있으나, 본 발명에 사용할 수 있는 카본 블랙은 상기한 범위에 적당한 것이라면 모두 포함될 수 있다.Typically carbon black has a variety of forms depending on the manufacturing method, carbon black that can be used in the present invention may be included as long as it is suitable in the above range.
상기 규정된 카본 블랙을 사용하여 만들어진 고무 조성물을 사용함으로써 열전도성이 향상된 타이어 가류용 브라더를 제조 할 수 있다.By using a rubber composition made using the carbon black as defined above, it is possible to manufacture a tire vulcanizing brother having improved thermal conductivity.
이하, 본 발명을 실시예에 의하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail by way of examples.
[실시예 1 및 2][Examples 1 and 2]
다음 표 1에 나타난 바와 같은 특성을 갖는 카본 블랙을 다음 표 2에 나타난 조성으로 하여 타이어 가류용 브라더 고무 조성물을 통상의 가류용 브라더 조성물의 제조 방법에 따라 제조하였다.Next, carbon black having a characteristic as shown in Table 1 was used as the composition shown in Table 2, and a rubber composition for tire vulcanization was prepared according to a conventional method for preparing a brewing composition for vulcanization.
제조된 브라더 고무 조성물에 대하여 조성물의 물성을 측정하여 다음 표 2에 함께 나타내었다.The physical properties of the composition of the prepared brother rubber composition were measured and shown in Table 2 together.
[비교예 1]Comparative Example 1
상기 실시예에서 본 발명에서 사용한는 특정의 카본 블랙을 사용하지 않고 다음 표 3에 나타난 아세틸렌 블랙을 사용한 것을 제외하고는 본 발명의 실시예 1과 유사하게 실시하여, 다음 표 4에 나타난 조성으로 하여 통상의 가류용 브라더 조성물의 제조방법에 따라 비교예 1의 조성물을 제조하였다.As used in the present invention in the above embodiment was carried out in the same manner as in Example 1 of the present invention, except that the specific acetylene black shown in Table 3 without using a specific carbon black as shown in the following Table 4 The composition of Comparative Example 1 was prepared according to the preparation method of the vulcanizing brother composition.
상기 비교예 1로 제조된 브라더 고무 조성물에 대하여 조성물의 물성을 측정하여 다음 표 4에 함께 나타내었다.The physical properties of the composition of the brother rubber composition prepared in Comparative Example 1 were measured and shown in Table 4 below.
상기의 표 2와 표 4에서 나타난 바와 같이 비교예 1의 기존의 브라더 고무 조성물에서 기존의 아세틸렌/ISAF를 사용하지 않고 본 발명의 특정 카본 블랙을 사용하는 경우 조성물의 전기 전도도가 매우 향상되는 결과를 나타내며 또한 모듈러스가 향상되어 브라더 조성물의 사용수명을 향상되는 것을 나타냈다.As shown in Table 2 and Table 4 above, when using the specific carbon black of the present invention without using the existing acetylene / ISAF in the conventional brother rubber composition of Comparative Example 1 results in that the electrical conductivity of the composition is very improved It has also been shown that the modulus is improved to improve the service life of the brother composition.
상기에 나타난 바와 같이, 본 발명에서 특정의 카본 블랙을 사용한 경우 기존의 아세틸렌 블랙을 사용한 경우에 비하여 매우 양호한 전도성을 나타냈고, 또한 구조가 발달하여 모듈러스가 좋고, 영구 신장율이 향상되어 타이어 가류 브라더의 사용 수명을 늘릴 수 있는 효과를 나타낸다.As shown above, in the present invention, the use of specific carbon black showed very good conductivity compared to the case of using acetylene black, and the structure was well developed, the modulus was good, and the permanent elongation was improved. It has the effect of extending the service life.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960030547A KR100188809B1 (en) | 1996-07-26 | 1996-07-26 | Rubber composition for hump-strip of a tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960030547A KR100188809B1 (en) | 1996-07-26 | 1996-07-26 | Rubber composition for hump-strip of a tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR980009358A KR980009358A (en) | 1998-04-30 |
| KR100188809B1 true KR100188809B1 (en) | 1999-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960030547A KR100188809B1 (en) | 1996-07-26 | 1996-07-26 | Rubber composition for hump-strip of a tire |
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| Country | Link |
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| KR (1) | KR100188809B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100406518B1 (en) * | 2001-06-01 | 2003-11-20 | 한국타이어 주식회사 | Rubber composition for tire |
| KR100475331B1 (en) * | 2002-11-22 | 2005-03-11 | 한국타이어 주식회사 | Rubber composition for tire hump stripe |
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1996
- 1996-07-26 KR KR1019960030547A patent/KR100188809B1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR980009358A (en) | 1998-04-30 |
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