KR100592987B1 - Rim flange compound for truck and bus tire - Google Patents
Rim flange compound for truck and bus tire Download PDFInfo
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- KR100592987B1 KR100592987B1 KR1020030035402A KR20030035402A KR100592987B1 KR 100592987 B1 KR100592987 B1 KR 100592987B1 KR 1020030035402 A KR1020030035402 A KR 1020030035402A KR 20030035402 A KR20030035402 A KR 20030035402A KR 100592987 B1 KR100592987 B1 KR 100592987B1
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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
-
- 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
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- 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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- 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
- B60C2001/005—Compositions of the bead portions, e.g. clinch or chafer rubber or cushion rubber
Abstract
본 발명은 트럭 및 버스 타이어용 림플랜지 고무 조성물에 관한 것으로, 천연고무와 부타디엔 고무로 이루어진 원료고무 100중량부에 대해, 아연화 함량이 18%t인 Activator-73 3중량부 이하 포함한다.The present invention relates to a rim flange rubber composition for truck and bus tires, and includes 3 parts by weight or less of Activator-73 having a zinc content of 18% to 18 parts by weight of raw rubber made of natural rubber and butadiene rubber.
상기와 같이 구성된 본 발명은 다른 성능 하락없이 마모성능, 발열성능, 인장물성 및 블로우아웃 성능이 크게 향상되었으며, 이에 따라 타이어 수명도 향상된다.
According to the present invention configured as described above, the wear performance, the heat generation performance, the tensile properties, and the blowout performance are greatly improved without any other performance deterioration, and thus the tire life is also improved.
Activator-73, 림플랜지, 부타디엔 고무Activator-73, rim flange, butadiene rubber
Description
본 발명은 트럭 및 버스 타이어용 림플랜지 고무 조성물에 관한 것으로, 보다 상세하게는 항-리버전제를 적용시켜 림플랜지 고무의 내열특성을 향상시키는 트럭 및 버스 타이어용 림플랜지 고무 조성물에 관한 것이다.The present invention relates to a rim flange rubber composition for truck and bus tires, and more particularly, to a rim flange rubber composition for truck and bus tires by applying an anti-reversing agent to improve the heat resistance characteristics of the rim flange rubber.
일반적으로 림플랜지 고무는 자동차의 스틸이나 알루미늄으로 이루어진 림과 직접 접촉하는 부분으로, 계속되는 림과의 마찰에 잘 견딜 수 있도록 높은 강도를 갖도록 설계된다. 특히 트럭 및 버스용 타이어의 림플랜지 고무조성물은 수톤에서 수십톤에 달하는 하중과 함께 림과의 접촉으로 발생하는 열에 잘 저항해야 한다. 이를 위해 림플랜지 고무조성물은 천연고무와 부타디엔고무를 주원료로 하면서 많은 양의 카본블랙을 사용하고, 노화방지제 등도 사용하였다.In general, the rim flange rubber is a part in direct contact with a rim made of steel or aluminum of an automobile, and is designed to have high strength to withstand friction with subsequent rims. In particular, the rim flange rubber composition of truck and bus tires must be resistant to the heat generated by contact with the rim, with loads ranging from tons to tens of tons. For this purpose, the rim flange rubber composition used natural rubber and butadiene rubber as a main raw material, and used a large amount of carbon black, and also used an anti-aging agent.
그러나, 상기 노화방지제 및 천연고무, 부타디엔고무 조성물의 변화로 인해 내열특성 유지에 한계가 있으며, 부타디엔 고무의 지나친 사용은 배합 및 압출공정에서의 작업성이 하락되므로 일정량 이상의 사용에 한계가 있다. 또한 천연고무를 주로 하는 고무조성물은 고온으로 과가류를 하면 황과 탄소원자 사이의 결합이 분해되거나 폴리설파이드(polysulfide)가 분해되어 모노(Mono) 및 다이설파이드(disulfide) 형태의 결합으로 가교형태가 변하게 되는 현상, 즉 리버젼(Reversion)이 발생된다.
However, due to changes in the anti-aging agent and natural rubber, butadiene rubber composition, there is a limit in maintaining heat resistance, excessive use of butadiene rubber is limited to use a certain amount or more because the workability in the compounding and extrusion process is reduced. In addition, the rubber composition mainly made of natural rubber is cross-linked by mono- and disulfide-type bonds by decomposing the bonds between sulfur and carbon atoms or decomposing polysulfides when over-vulcanized at high temperatures. Is changed, that is, a revision occurs.
본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 천연고무와 부타디엔 고무로 이루어진 원료고무에 대해, 아연화 함량이 18%t인 Activator-73을 포함시켜 내열성능이 우수한 트럭 및 버스 타이어용 림플랜지 고무 조성물을 제공하는 데 그 목적이 있다.
The present invention has been made to solve the above problems, for the raw material rubber consisting of natural rubber and butadiene rubber, rims for truck and bus tires, including Activator-73 with a zinc content of 18% t excellent heat resistance It is an object to provide a flange rubber composition.
상기 목적을 달성하기 위하여 본 발명은 공지의 트럭 및 버스 타이어용 림플랜지 고무 조성물에 있어서, 천연고무와 부타디엔 고무로 이루어진 원료고무 100중량부에 대해, 아연화 함량이 18%인 Activator-73 3중량부 이하 포함한다.In order to achieve the above object, the present invention, in the known rim flange rubber composition for truck and bus tires, based on 100 parts by weight of the raw material rubber consisting of natural rubber and butadiene rubber, 3 parts by weight of Activator-73 having a zinc content of 18% It includes below.
상기 Activator-73는 고무조성물내에서 항-리버전제(Anti-reversion agent)로서 사용되며, 물질 및 그의 용도가 미국특허 제5,302,315호에, 특히 실시예 1에 개시되어 있다The Activator-73 is used as an anti-reversion agent in rubber compositions and the materials and their use are disclosed in US Pat. No. 5,302,315, in particular in Example 1.
상기 Activator-73는 18%의 아연(Zn)과 82%의 지방산(Fatty acid)의 혼합물로 이루어지며, 상기 지방산은 75%의 지방족 탄화수소(Aliphatic), 25%의 방향족 탄화수소(Aromatic)으로 이루어진다. 또한 상기 지방족 탄화수소은 62%의 C8(탄소원자수가 8개임)와 36%의 C10(탄소원자수가 10개임)와 2%의 C12(탄소원자수가 12개임)로 이루어진다.The Activator-73 is a mixture of 18% zinc (Zn) and 82% fatty acid (Fatty acid), the fatty acid is composed of 75% aliphatic hydrocarbons (Aliphatic), 25% aromatic hydrocarbons (Aromatic). The aliphatic hydrocarbon also consists of 62% C8 (8 carbon atoms), 36% C10 (10 carbon atoms) and 2% C12 (12 carbon atoms).
상기 Activator-73은 3중량부 이하, 보다 바람직하게는 0.5~3.0중량부 첨가하는 것이 좋다. 본 발명에서 Activator-73를 0.5중량부 미만으로 첨가하는 경우, 고무에 유연성을 부과하여 점도를 낮추는 역할을 하기 어려우며, 3중량부 초과하여 첨가하는 경우, 오히려 고무의 작업성에 좋지 않은 역할을 하기 때문에 3중량부 이하로 사용하는 것이 바람직하다.
The Activator-73 is added in 3 parts by weight or less, more preferably 0.5 to 3.0 parts by weight. In the present invention, when the Activator-73 is added in less than 0.5 parts by weight, it is difficult to impart flexibility to the rubber to lower the viscosity, and when added in excess of 3 parts by weight, rather because it plays a bad role in the workability of the rubber It is preferable to use it at 3 weight part or less.
<표 1> Activator-73의 구성표<Table 1> Scheme of Activator-73
* C8, C10, C12는 탄소원자수가 8, 10, 12개인 성분을 의미함.* C8, C10 and C12 refer to components having 8, 10 and 12 carbon atoms.
이하, 실시예 및 비교예를 통하여 본 발명을 보다 상세히 설명한다. 그러나 본 발명은 이들 실시예에 국한되는 것은 아니다.
Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. However, the present invention is not limited to these examples.
<비교예 1>Comparative Example 1
다음 표 2에 지시된 배합비와 같이, 본 발명은 천연고무 50중량부와 부타디엔 고무 50중량부가 혼합된 원료고무 100중량부에 대해 카본블랙 75중량부, 산화아연 5중량부, 스테아린산 1중량부, 노화방지제 3중량부, 왁스 1중량부, 오일 5중량 부, 황 2.1중량부, 촉진제 1.7중량부를 160℃에서 15분 동안 가류하여 고무시편을 제조하였다.
As the compounding ratio indicated in the following Table 2, the present invention is 75 parts by weight of carbon black, 5 parts by weight of zinc oxide, 1 part by weight of stearic acid, based on 100 parts by weight of raw rubber mixed with 50 parts by weight of natural rubber and 50 parts by weight of butadiene rubber, 3 parts by weight of antioxidant, 1 part by weight of wax, 5 parts by weight of oil, 2.1 parts by weight of sulfur, and 1.7 parts by weight of accelerator were vulcanized at 160 ° C. for 15 minutes to prepare a rubber specimen.
<비교예 2>Comparative Example 2
원료고무 중 천연고무를 40중량부, 부타디엔 고무 60중량부를 적용시키는 것을 제외하고는 상기 비교예 1과 같은 조성물, 조성비 및 방법을 이용하여 고무시편을 제조하였다.
A rubber specimen was prepared by using the same composition, composition ratio, and method as in Comparative Example 1 except that 40 parts by weight of natural rubber and 60 parts by weight of butadiene rubber were applied.
<비교예 3>Comparative Example 3
원료고무 중 천연고무를 30중량부, 부타디엔 고무 70중량부를 적용시키는 것을 제외하고는 상기 비교예 1과 같은 조성물, 조성비 및 방법을 이용하여 고무시편을 제조하였다.
A rubber specimen was manufactured using the same composition, composition ratio, and method as in Comparative Example 1 except that 30 parts by weight of natural rubber and 70 parts by weight of butadiene rubber were applied.
<실시예 1><Example 1>
Activator-73(Struktol사, 미국) 2중량을 추가로 첨가시키는 것을 제외하고는 상기 비교예 1과 같은 조성물, 조성비 및 방법을 이용하여 고무시편을 제조하였다.
A rubber specimen was prepared using the same composition, composition, and method as in Comparative Example 1, except that 2 weight of Activator-73 (Struktol, USA) was further added.
<실시예 2><Example 2>
Activator-73 2중량을 추가로 첨가시키는 것을 제외하고는 상기 비교예 2와 같은 조성물, 조성비 및 방법을 이용하여 고무시편을 제조하였다.
A rubber specimen was prepared using the same composition, composition ratio, and method as in Comparative Example 2, except adding 2 weights of Activator-73.
<실시예 3><Example 3>
Activator-73 2중량을 추가로 첨가시키는 것을 제외하고는 상기 비교예 3과 같은 조성물, 조성비 및 방법을 이용하여 고무시편을 제조하였다.
A rubber specimen was prepared using the same composition, composition, and method as in Comparative Example 3, except that 2 weight of Activator-73 was further added.
<표 2>. 실시예 및 비교예의 고무조성물 TABLE 2 Rubber Compositions of Examples and Comparative Examples
<시험예><Test Example>
비교예와 실시예 고무시편을 ASTM 관련규정에 의하여 물성을 측정하였으며 그 결과는 다음 표 3에 나타난 바와 같다.Comparative Examples and Examples The rubber specimens were measured for physical properties according to ASTM-related regulations. The results are shown in Table 3 below.
(1)발열성능은 온도상승이 낮을수록 우수한 것을 나타낸다.(1) The heat generation performance shows that the lower the temperature rise, the better.
(2)마모성능은 피코 마모량이 적을수록 우수한 것을 나타낸다.(2) The abrasion performance is excellent as the amount of pico wear decreases.
(3)리버젼은 레오그래피에서 측정했으며 식은 다음과 같다.(3) The revision was measured in the rheography and the equation is as follows.
Reversion = (최대 토크 - 20분 경과 후 토크)/(최대토크 - 최소토크)*100 Reversion = (maximum torque-torque after 20 minutes) / (maximum torque-minimum torque) * 100
또한 상기 리버젼 및 물성변화는 작을수록 우수한 것을 나타낸다.Also, the smaller the reversion and the change in physical properties, the better.
(4)점도는 낮을수록 공정성에 유리한 것을 나타낸다.
(4) The lower the viscosity, the more favorable the fairness.
<표 3> 비교예 및 실시예의 물성측정결과<Table 3> Measurement results of physical properties of Comparative Examples and Examples
상기 표 3에 나타난 바와 같이 물성측정결과는 다음과 같다.As shown in Table 3, the physical property measurement results are as follows.
즉 마모성능, 발열성능, 인장물성 및 블로우아웃 성능은 본 발명(실시예1~3)이 종래의 발명(비교예 1~3)보다 향상되었음을 알 수 있다.
That is, it can be seen that the wear performance, the exothermic performance, the tensile properties, and the blowout performance are improved in the present invention (Examples 1 to 3) than the conventional inventions (Comparative Examples 1 to 3).
상기와 같이 구성된 본 발명은 다른 성능 하락없이 마모성능, 발열성능, 인장물성 및 블로우아웃 성능이 크게 향상되었으며, 이에 따라 타이어 수명도 향상된다.According to the present invention configured as described above, the wear performance, the heat generation performance, the tensile properties, and the blowout performance are greatly improved without any other performance deterioration, and thus the tire life is also improved.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030035402A KR100592987B1 (en) | 2003-06-02 | 2003-06-02 | Rim flange compound for truck and bus tire |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020030035402A KR100592987B1 (en) | 2003-06-02 | 2003-06-02 | Rim flange compound for truck and bus tire |
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| KR20040104031A KR20040104031A (en) | 2004-12-10 |
| KR100592987B1 true KR100592987B1 (en) | 2006-06-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10179479B2 (en) | 2015-05-19 | 2019-01-15 | Bridgestone Americas Tire Operations, Llc | Plant oil-containing rubber compositions, tread thereof and race tires containing the tread |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100726868B1 (en) | 2006-06-19 | 2007-06-11 | 금호타이어 주식회사 | Tire tread rubber composition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10179479B2 (en) | 2015-05-19 | 2019-01-15 | Bridgestone Americas Tire Operations, Llc | Plant oil-containing rubber compositions, tread thereof and race tires containing the tread |
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| KR20040104031A (en) | 2004-12-10 |
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