KR20000073785A - Rubber composition for tread in tires - Google Patents
Rubber composition for tread in tires Download PDFInfo
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- KR20000073785A KR20000073785A KR1019990017295A KR19990017295A KR20000073785A KR 20000073785 A KR20000073785 A KR 20000073785A KR 1019990017295 A KR1019990017295 A KR 1019990017295A KR 19990017295 A KR19990017295 A KR 19990017295A KR 20000073785 A KR20000073785 A KR 20000073785A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/04—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by magnetic means
- B66C1/06—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by magnetic means electromagnetic
- B66C1/08—Circuits therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/40—Applications of devices for transmitting control pulses; Applications of remote control devices
- B66C13/44—Electrical transmitters
Abstract
Description
본 발명은 타이어 트레드용 고무 조성물에 관한 것으로, 더욱 상세하게는 고무 성분으로서, 천연고무와 함께 내마모성능이 우수한 부타디엔 고무를 사용하고 또한 낮은 표면 구조와 입자경을 가지는 카본블랙을 동시에 사용하여 조성물의 내마모성능을 향상시키고, 수지를 사용하여 내 칩-커트(chip-cut resistance) 성능을 만족시킨 타이어 트레드용 고무 조성물에 관한 것이다.The present invention relates to a rubber tread rubber composition, and more particularly, as a rubber component, by using butadiene rubber having excellent abrasion resistance with natural rubber and simultaneously using carbon black having a low surface structure and a particle diameter, The present invention relates to a rubber composition for tire treads that improves the resistance and satisfies chip-cut resistance performance by using a resin.
8톤 이하의 경트럭용 차량의 통상적인 사용 조건은 고하중하에서 고속도로와 국도를 병행하여 운행함으로 상당히 높은 가혹도 조건이라 할 수 있다.The normal use conditions of light trucks of 8 tons or less are considerably high severity conditions because the highways and national roads operate in parallel under heavy loads.
이러한 상황하에서 사용되어지는 타이어 트레드 고무 조성물에 관하여 살펴보면 다음과 같다.Looking at the tire tread rubber composition to be used under such a situation as follows.
일반적으로 8톤 이하의 경트럭 타이어의 트레드 조성물에는 내마모성과 내 칩-커트성이 동시에 요구되며 타어어 자체의 내구성도 함께 요구된다.In general, the tread composition of light truck tires of 8 tons or less requires both wear resistance and chip-cut resistance at the same time, as well as durability of the tire itself.
하지만, 타이어 고무 조성물에서 내마모성과 내 칩-커트성, 내구성은 상반되는 물성이다. 따라서, 내마모성과 내 칩-커트성을 동시에 향상시킨 고무 조성물을 발명하는데는 상당한 어려운 점이 있었다. 뿐만 아니라, 통상적으로 내마모성을 향상시킨 고무 조성물들의 타이어 내구성은 현저히 저하하는 현상을 보인다.However, abrasion resistance, chip-cut resistance, and durability in tire rubber compositions are opposite properties. Therefore, there has been a considerable difficulty in inventing a rubber composition having improved abrasion resistance and chip-cut resistance at the same time. In addition, the tire durability of rubber compositions having improved abrasion resistance is generally markedly degraded.
종래까지의 내마모성 향상 고무조성물들의 기술은 폴리머 변경 혹은 카본블랙 첨가량 증가와 기타 가류계 변경등 단편적인 방법이 있었다. 이러한 고무 조성물등은 단편적인 내마모성능 향상을 나타낼뿐 내 칩-커트 성능에서 저하를 가져왔다. 또한 내마모성 향상에 수반하는 고무 조성물 자체의 발열특성 증가로 인하여 타이어 내구성에 불리한 요인으로 작용하였다. 내 칩-커트성 향상 고무 조성물에서도 이와 동일한 결과를 나타낸다.Conventional techniques for improving wear resistance rubber compositions include fragmentary methods such as polymer change or carbon black addition and other vulcanization systems. Such rubber compositions show only a partial improvement in abrasion resistance, resulting in a decrease in chip-cut performance. In addition, due to the increase in the exothermic properties of the rubber composition itself with the improvement of wear resistance, it acted as a detrimental factor for tire durability. The same result is obtained in the chip-cut resistance improving rubber composition.
본 발명자는 상기와 같은 문제를 해결하기 위하여 연구한 결과, 고무 성분으로서, 천연고무와 함께 내마모성능이 우수한 부타디엔 고무를 사용하고 또한 낮은 표면 구조와 입자경을 가지는 카본블랙을 동시에 사용함으로써 조성물의 내마모성능을 향상시키고, 수지를 사용하여 내 칩-커트 성능을 만족시킬 수 있음을 알게 되어 본 발명에 이르게 되었다.The present inventors have studied to solve the above problems, and as a rubber component, by using butadiene rubber having excellent abrasion resistance with natural rubber and simultaneously using carbon black having a low surface structure and particle diameter, It has been found that the present invention can be improved and that the resin can be used to satisfy the chip-cut performance.
이에 본 발명은 타이어의 내마모 성능과 내 칩-커트성능을 향상시키고 동시에 타이어 내구성을 향상시킬 수 있는 타이어 트레드용 고무 조성물을 제공하는데 그 목적이 있다.Accordingly, an object of the present invention is to provide a rubber composition for a tire tread that can improve tire wear resistance and chip-cut performance and at the same time improve tire durability.
본 발명은 천연고무 60 내지 90 중량부, 부타디엔 고무 10 내지 40 중량부로 이루어진 전체 고무 성분 100중량부에 대하여, 질소 흡착 표면적이 130 내지 145 ㎎/g, DBP 흡유량이 115 내지 130 cc/100g, TINT 125 내지 135인 카본블랙 45 내지 65 중량부, 로진 개질된 터프렌 수지 2 내지 6 중량부, 촉진제 0.9 내지 2.0 중량부, 유황 1 내지 2 중량부 및 통상의 타이어 트레드용 고무 조성물의 첨가제로 이루어진 타이어 트레드용 고무 조성물인 것이다.The present invention is a nitrogen adsorption surface area of 130 to 145 mg / g, DBP oil absorption 115 to 130 cc / 100g, TINT with respect to 100 parts by weight of the total rubber component consisting of 60 to 90 parts by weight of natural rubber, 10 to 40 parts by weight of butadiene rubber Tires composed of 45 to 65 parts by weight of carbon black having 125 to 135, 2 to 6 parts by weight of rosin-modified terrene resin, 0.9 to 2.0 parts by weight of accelerator, 1 to 2 parts by weight of sulfur, and additives of a conventional rubber tread rubber composition It is a rubber composition for treads.
본 발명에서는 고무성분으로서 천연고무와 내마모성능이 우수한 부타디엔 고무를 각각 60 내지 90 중량부와 10 내지 40 중량부로 사용하고, 낮은 표면 구조와 낮은 입자경을 갖는 카본블랙, 바람직하게는 질소 흡착 표면적이 130 내지 145 ㎎/g, DBP 흡유량이 115 내지 130 cc/100g, TINT 125 내지 135인 카본블랙을 45 내지 65 중량부 사용함으로서 타이어의 내마모성능을 향상시킬 수 있게 된다.In the present invention, the natural rubber and butadiene rubber having excellent abrasion resistance are used as the rubber component at 60 to 90 parts by weight and 10 to 40 parts by weight, respectively, and carbon black having a low surface structure and a low particle size, preferably 130 to nitrogen adsorption surface area. By using 45 to 65 parts by weight of carbon black having 145 mg / g, DBP oil absorption of 115 to 130 cc / 100 g, and TINT 125 to 135, the wear resistance of the tire can be improved.
또한, 수지로서 로진 개질된 터프렌 수지를 2 내지 6 중량부로 사용하고, 촉진제로 N-터셔리-부틸-2-벤조티아질-설펜아미드 0.9 내지 2.0 중량부를 사용하며, 유황으로는 오일 처리된 황, 바람직하게는 1% 나프텐 오일로 처리된 황(순도 98% 이상)을 1 내지 2 중량부 사용하여 타이어 트레드 고무 조성물 자체의 발열성을 낮추어 타이어 내구성을 향상시켜 타이어의 낮은 내구성으로 인한 타이어 터짐을 줄일 수 있게 된다.In addition, 2 to 6 parts by weight of rosin-modified terprene resin is used as the resin, and 0.9 to 2.0 parts by weight of N-tertiary-butyl-2-benzothiazyl-sulfenamide is used as an accelerator, and oil-treated with sulfur. 1 to 2 parts by weight of sulfur (preferably 98% purity) treated with sulfur, preferably 1% naphthenic oil, to reduce the exothermicity of the tire tread rubber composition itself, thereby improving tire durability and thereby improving tire durability. It can reduce the burst.
이하에, 본 발명을 실시예에 의거하여 더욱 상세히 설명하며, 본 발명은 이들 실시예에 의해 제한되는 것은 아니다.Hereinafter, the present invention will be described in more detail based on examples, and the present invention is not limited to these examples.
실시예 1 내지 3Examples 1 to 3
하기 표 1에 나타낸 바와 같은 성분들을 배합하여 각각의 타이어 트레드용 고무 조성물을 제조하여 고무 시편을 제작한 후 그 물성을 측정하였다. 그 결과를 표 1에 나타내었다.By combining the components as shown in Table 1 below to prepare a rubber composition for each tire tread to prepare a rubber specimen, the physical properties were measured. The results are shown in Table 1.
물성 측정은 다음과 같은 방법에 의하였다.Physical properties were measured by the following method.
내마모성지수 : 람본 마모 시험기로 시험, 지수가 클수록 내마모성이 향상된다.Abrasion resistance index: Tested with a rambon abrasion tester, the larger the index, the better the wear resistance.
내 칩-커트성 지수 : BF GOODRICH CHIP/CUT 시험기로 시험, 지수가 클수록 내 칩-커트성능이 향상된다.Chip-Curt Resistance: Tested with the BF GOODRICH CHIP / CUT tester, the higher the index, the better the chip-cut performance.
반발 탄성 : Ueshima impact resilience tester로 시험, 수치가 높을수록 저발열(내구성 향상)을 나타낸다.Resilience: Test with Ueshima impact resilience tester, the higher the value, the lower the heat generation (improved durability).
히스테리시스 로스(HYSTERESIS LOSS) : RHEOMETRICS DYNAMIC SPECTROMETER로 측정, 값이 클수록 발열 증가(내구성 저하)를 나타낸다.HYSTERESIS LOSS: Measured by RHEOMETRICS DYNAMIC SPECTROMETER, the larger the value, the higher the heat generation (durability deterioration).
비교예Comparative example
하기 표 1에 나타낸 바와 같은 성분들을 배합하여 타이어 트레드용 고무 조성물을 제조하여 고무 시편을 제작한 후 실시예 1과 같은 방법으로 그 물성을 측정하였다. 그 결과를 표 1에 나타내었다.After mixing the components as shown in Table 1 to prepare a rubber composition for tire tread to prepare a rubber specimen, the physical properties were measured in the same manner as in Example 1. The results are shown in Table 1.
1카본 블랙 1 : 질소 흡착 면적 110∼120 ㎎/g, DBP 흡유량 130∼140 cc/100g, TINT 115 이상 1 Carbon Black 1: Nitrogen adsorption area 110 to 120 mg / g, DBP oil absorption 130 to 140 cc / 100 g, TINT 115 or more
2카본 블랙 2 : 질소 흡착 면적 130∼140 ㎎/g, DBP 흡유량 120∼130 cc/100g, TINT 130 이상 2 carbon black 2: nitrogen adsorption area 130-140 mg / g, DBP oil absorption 120-130 cc / 100g, TINT 130 or more
3수지 : 로진 개질된 터프렌 수지 3 Resin: Rosin Modified Tuprene
4촉진제 : N-터셔리-부틸-2-벤조티아질-설펜아미드 4 Accelerator: N-tertiary-butyl-2-benzothiazyl-sulfenamide
5유황 : 오일 처리된 황 (1% 나프텐 오일 코팅 ; 순도 98% 이상) 5 Sulfur: oiled sulfur (1% naphthenic oil coating; purity over 98%)
상기 표 1에서 보는 바와 같이, 본원발명에 따른 조성물인 실시예 1 내지 3에서는 그렇지 않은 비교예에 비해 향상된 내마모성과 내 칩-커트성을 나타내고 있으며 또한 내구성을 나타내는 고무 조성물 자체의 발열특성에서도 저발열성을 가지고, 따라서 내구성이 향상되었음을 알 수 있다.As shown in Table 1, Examples 1 to 3, which is a composition according to the present invention, show improved wear resistance and chip-cut resistance compared to the comparative examples that do not, and low heat generation even in the exothermic properties of the rubber composition itself exhibiting durability. It can be seen that the durability, and thus the durability is improved.
본 발명에 따른 타이어 트레드용 고무 조성물에 의하면 타이어의 내마모 성능과 내 칩-커트성능을 향상시키고 동시에 내구성을 향상시킬 수 있다.According to the rubber composition for tire treads according to the present invention, it is possible to improve wear resistance and chip-cut performance of a tire and at the same time improve durability.
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Cited By (3)
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 |
KR100575557B1 (en) * | 2004-11-15 | 2006-05-03 | 한국타이어 주식회사 | Rubber composition for cushion gum for hot cure of truck and bus recycling tire |
KR100665480B1 (en) * | 2004-11-22 | 2007-01-09 | 한국타이어 주식회사 | Manufacturing method for tread rubber of truck and bus tires |
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KR100964922B1 (en) | 2008-10-14 | 2010-06-23 | 한국타이어 주식회사 | Rubber composition for tire tread |
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JPH0745599B2 (en) * | 1986-10-14 | 1995-05-17 | 横浜ゴム株式会社 | Rubber composition for tire tread |
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1999
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Cited By (3)
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 |
KR100575557B1 (en) * | 2004-11-15 | 2006-05-03 | 한국타이어 주식회사 | Rubber composition for cushion gum for hot cure of truck and bus recycling tire |
KR100665480B1 (en) * | 2004-11-22 | 2007-01-09 | 한국타이어 주식회사 | Manufacturing method for tread rubber of truck and bus tires |
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