KR100941986B1 - Tire carcas rubber composition having improved thermal resistance - Google Patents

Tire carcas rubber composition having improved thermal resistance Download PDF

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KR100941986B1
KR100941986B1 KR1020080060666A KR20080060666A KR100941986B1 KR 100941986 B1 KR100941986 B1 KR 100941986B1 KR 1020080060666 A KR1020080060666 A KR 1020080060666A KR 20080060666 A KR20080060666 A KR 20080060666A KR 100941986 B1 KR100941986 B1 KR 100941986B1
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rubber
rubber composition
tire
weight
parts
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KR1020080060666A
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KR20100000970A (en
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김영주
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금호타이어 주식회사
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    • 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
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • 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
    • B60C1/0041—Compositions of the carcass layers
    • 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
    • C08K5/07—Aldehydes; Ketones
    • C08K5/08—Quinones
    • 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
    • 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)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

본 발명은 타이어 카카스용 고무 조성물에 관한 것으로, 보다 상세하게는 천연고무 50~80중량부 및 스티렌부타디엔 고무 20~50중량부로 이루어진 원료고무 100중량부에 대하여 6-아닐리노퀴놀린-5,8-퀴논 0.5~2.0중량부를 포함하여 이루어지므로써 내발열 특성 및 노화방지 특성을 향상시킴으로써 내피로 특성이 우수한 타이어 카카스용 고무 조성물에 관한 것이다.The present invention relates to a rubber composition for tire carcass, more specifically 6-anilinoquinoline-5,8 based on 100 parts by weight of the raw material rubber consisting of 50 to 80 parts by weight of natural rubber and 20 to 50 parts by weight of styrene butadiene rubber It comprises a 0.5 to 2.0 parts by weight of the quinone, and relates to a rubber composition for tire carcass excellent in fatigue resistance by improving heat resistance and anti-aging properties.

6-아닐리노퀴놀린-5,8-퀴논, 내열특성, 노화방지 특성, 내피로 특성, 타이어 카카스용 고무 조성물 6-anilinoquinoline-5,8-quinone, heat resistance, anti-aging properties, fatigue resistance, rubber composition for tire carcass

Description

내열 특성이 향상된 타이어 카카스용 고무 조성물{TIRE CARCAS RUBBER COMPOSITION HAVING IMPROVED THERMAL RESISTANCE}Rubber composition for tire carcass with improved heat resistance {TIRE CARCAS RUBBER COMPOSITION HAVING IMPROVED THERMAL RESISTANCE}

본 발명은 내발열 특성 및 노화방지 특성을 향상시켜 내피로 특성이 우수한 타이어 카카스용 고무 조성물에 관한 것이다.The present invention relates to a rubber composition for tire carcasses having excellent heat resistance and anti-aging characteristics by improving heat resistance characteristics.

일반적으로, 타이어의 카카스용 고무 조성물은 타이어 내부의 코드층이 받는 하중을 지지하고, 충격에 견디며, 주행중 굴신운동에 대한 내피로성이 강해야 하는데, 타이어용 고무의 노화현상으로 내피로성이 저하되어 카카스플라이 단부가 본체로부터 분리(separation)되는 현상이 발생하여 타이어의 수명을 저하시키는 결점이 있다.In general, the rubber composition for carcass of a tire should support the load received by the cord layer inside the tire, be resistant to shock, and have strong fatigue resistance to stretching movements while driving, and fatigue resistance deteriorates due to aging of tire rubber. The phenomenon that the carcass splice end is separated from the main body occurs, which has a drawback of reducing the life of the tire.

일반적으로, 천연고무 및 또는 디엔계 합성 고무로 이루어진 카카스용 고무 조성물에 있어서, 고무사용에 따른 노화경화 및 파괴물성이 저하되는 현상은 피할 수 없는 문제이기 때문에 노화를 방지시킴으로써 내피로 특성을 향상시키기 위한 고무 조성물의 개발이 요구되고 있다.In general, in the rubber composition for carcass made of natural rubber and / or diene-based synthetic rubber, aging hardening and deterioration of fracture properties due to the use of rubber are inevitable problems, thereby improving fatigue resistance by preventing aging. There is a need for the development of rubber compositions for the purpose.

본 발명의 목적은, 상기와 같은 문제점을 해결하기 위하여 퀴논계 촉진제인 6-아닐리노퀴놀린-5,8-퀴논을 사용하므로써 내발열 특성 및 노화방지 특성을 향상시킨 타이어 카카스용 고무 조성물을 제공하는 것을 목적으로 한다.SUMMARY OF THE INVENTION An object of the present invention is to provide a rubber composition for tire carcasses that has improved heat-resisting and anti-aging properties by using a quinone-based accelerator 6-anilinoquinoline-5,8-quinone to solve the above problems. It aims to do it.

본 발명에 따른 타이어 카카스용 고무 조성물은 원료고무 100중량부에 대하여 6-아닐리노퀴놀린-5,8-퀴논 0.5~2.0중량부를 포함하여 이루어지는 것을 특징으로 한다.The rubber composition for tire carcass according to the present invention is characterized in that it comprises 0.5 to 2.0 parts by weight of 6-anilinoquinoline-5,8-quinone based on 100 parts by weight of the raw material rubber.

본 발명에서 사용되는 원료고무는 그 종류에 특별히 한정이 없고, 천연고무, 합성고무 또는 이들의 혼합고무를 사용할 수 있는데, 예로서, 천연고무 및 부타디엔고무를 단독 또는 이들의 혼합물로 된 혼합고무를 사용하는 것이 바람직하다. 혼합고무의 경우, 고무간의 혼합비율에는 특별히 한정이 없다.The raw material rubber used in the present invention is not particularly limited in its kind, and natural rubber, synthetic rubber or mixed rubber thereof may be used. For example, natural rubber and mixed butadiene rubber may be used alone or as a mixture thereof. It is preferable to use. In the case of mixed rubber, the mixing ratio between rubbers is not particularly limited.

본 발명에 사용되는 6-아닐리노퀴놀린-5,8-퀴논은 고무와의 결합 과정에서 콘쥬게이션된 벤젠의 역할로 인해 산소의 결합을 안정적으로 유도하여 산화작용을 촉진시켜 고무 물성의 노화현상을 방지할 수 있다.The 6-anilinoquinoline-5,8-quinone used in the present invention stably induces the binding of oxygen due to the role of conjugated benzene in the bonding process with rubber to promote oxidation, thereby promoting the aging phenomenon of rubber properties It can prevent.

Figure 112008045923207-pat00001
Figure 112008045923207-pat00001

6-아닐리노퀴놀린-5,8-퀴논6-anilinoquinoline-5,8-quinone

상기 6-아닐리노퀴놀린-5,8-퀴논의 함량은 원료고무 100중량부에 대하여 0.5~2.0중량부인 것이 바람직한데, 0.5중량부 미만이면 산화작용을 일으키는 역할을 수행하기에 적합하지 않아 바람직하지 않고, 2.0중량부를 초과하면 고무간 반응의 공정성 문제를 야기하여 바람직하지 않다.The content of 6-anilinoquinoline-5,8-quinone is preferably 0.5 to 2.0 parts by weight based on 100 parts by weight of the raw rubber, but less than 0.5 parts by weight is not suitable for performing the role of causing oxidation. In addition, exceeding 2.0 parts by weight causes unfavorable problems of the rubber-to-rubber reaction.

본 발명의 고무 조성물에는 상기한 성분들 이외에, 통상적으로 타이어 카카스용 고무 조성물에 사용되는 첨가제들, 예로서 충전제로서 카본블랙 및/또는 실리카, 방향성 오일, 스테아린산, 아연화, 산화방지제, 왁스, 점착제 및 유황 등의 첨가제를 통상의 사용량 범위로 배합할 수 있다.In addition to the above-mentioned components, the rubber composition of the present invention includes additives which are usually used in the rubber composition for tire carcass, such as carbon black and / or silica as a filler, aromatic oil, stearic acid, zincated, antioxidant, wax, adhesive And additives, such as sulfur, can be mix | blended in normal usage range.

본 발명의 타이어 카카스용 고무 조성물은 내열특성 및 노화방지 특성을 향상시킴으로써 타이어 카카스용 고무의 내피로 특성을 향상시킬 수 있다.The rubber composition for tire carcass of the present invention can improve fatigue resistance of rubber for tire carcass by improving heat resistance and anti-aging characteristics.

이하 본 발명을 실시예를 통하여 더욱 상세히 설명한다. 그러나 이들 실시예가 본 발명의 범위를 제한하는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to Examples. However, these examples do not limit the scope of the present invention.

비교예Comparative example 및  And 실시예Example 1~2 1 ~ 2

하기 표 1의 조성대로 타이어 카카스용 고무 조성물을 제조한 후, 각 고무 조성물을 160℃에서 가류시켜 고무 시편을 제조하고, 그 물성을 ASTM 규격에 따라 동적특성, 경도, 300% 모듈러스, 인장강도, 오존특성 및 피로특성을 측정하고, 그 결과를 하기 표 1에 함께 나타내었다. After preparing the rubber composition for tire carcass according to the composition of Table 1, each rubber composition is vulcanized at 160 ℃ to prepare a rubber specimen, the physical properties according to the ASTM standards, hardness, 300% modulus, tensile strength , Ozone and fatigue properties were measured, and the results are shown in Table 1 together.

표 1Table 1

(단위: 중량부)                                                (Unit: parts by weight)

항목Item 비교예Comparative example 실시예 1Example 1 실시예 2Example 2 천연고무Natural rubber 5050 5050 5050 부타디엔 고무Butadiene rubber 5050 5050 5050 카본블랙Carbon black 5050 5050 -- 실리카Silica -- -- 5050 N,N-디페닐구아니딘N, N-diphenylguanidine 0.80.8 -- -- 6-아닐리노퀴놀린-5,8-퀴논6-anilinoquinoline-5,8-quinone -- 0.50.5 0.50.5 노화방지제1 ) Antioxidant 1 ) 55 55 55 방향성 오일Aromatic oils 33 33 33 스테아린 산Stearic acid 1One 1One 1One 아연화Zincification 33 33 33 산화방지제2 ) Antioxidant 2 ) 1One 1One 1One 왁스Wax 1.51.5 1.51.5 1.51.5 점착제3 ) Adhesive 3 ) 55 55 55 유황brimstone 22 22 22 동적특성 (160℃) Dynamic Characteristics (160 ℃) Tmax(분)Tmax (minutes) 32.432.4 3333 3434 Tmin(분)Tmin (minutes) 23.123.1 23.523.5 2525 T90(분)T90 (minutes) 5454 5555 5656 인장물성 (160℃)3분 Tensile Properties (160 ℃) 3 minutes 경도Hardness 5555 5555 5757 300% 모듈러스300% modulus 170170 175175 185185 인장강도(Kg/㎤)Tensile Strength (Kg / cm 3) 205205 210210 250250 오존특성4 ) Ozone Characteristics 4 ) 크랙발생시간(hr)Crack occurrence time (hr) 125125 131131 138138 내피로 특성5 ) Fatigue Resistance Characteristics 5 ) DMFC6 ) DMFC 6 ) 5.1/7.05.1 / 7.0 5.3/7.85.3 / 7.8 5.8/8.05.8 / 8.0 내발열특성7 ) Fever resistance characteristics 7 ) Goodrich FlexometerGoodrich flexometer 5%5% 7.5%7.5% 7.8%7.8%

주) 1) 고분자화된 2,2,4-트리메틸-1,2-디히드로퀴놀린1) Polymerized 2,2,4-trimethyl-1,2-dihydroquinoline

2) N-(1,3-디메틸부틸)- N'-페닐-페닐렌디아민2) N- (1,3-dimethylbutyl) -N'-phenyl-phenylenediamine

3) 옥틸-페놀 포름알데히드 수지3) octyl-phenol formaldehyde resin

4) 오존 특성 시험 조건은 시편을 20% 인장 시킨 후, 오존 농도 50ppm의 농도에서 시험.4) Ozone characteristic test conditions are tested at a concentration of 50ppm ozone after 20% tensile test specimen.

5) ASTM D430-73으로 시험, 반복피로를 통해 시편이 끊어지기까지의 피로싸이클을 측정함.5) Test with ASTM D430-73 and measure the fatigue cycle until the specimen breaks through repeated fatigue.

6) Demattia-Flex-Cracking Tester(시편이 끊어지는데 걸린 클램프의 왕복횟수/설정횟수)6) Demattia-Flex-Cracking Tester

7) 동적 압축변형에 따른 시편의 사이즈 변화를 %로 나타낸 것임.7) It shows the change in size of the specimen according to the dynamic compressive deformation in%.

표 2에 나타낸 바와 같이, 실시예는 비교예보다 인장물성이 동등수준 또는 그 이상이며, 오존특성 및 내피로 특성이 우수한 효과를 나타낸다.As shown in Table 2, the Example has the same or higher tensile properties than the comparative example, and shows excellent effects of ozone and fatigue resistance.

Claims (2)

원료고무 100중량부에 대하여 6-아닐리노퀴놀린-5,8-퀴논 0.5~2.0중량부를 포함하여 이루어지는 것을 특징으로 하는 타이어 카카스용 고무 조성물.A rubber composition for tire carcass, comprising 0.5 to 2.0 parts by weight of 6-anilinoquinoline-5,8-quinone based on 100 parts by weight of the raw material rubber. 제 1항의 고무 조성물로 이루어진 카카스부를 갖는 타이어.A tire having a carcass portion made of the rubber composition of claim 1.
KR1020080060666A 2008-06-26 2008-06-26 Tire carcas rubber composition having improved thermal resistance KR100941986B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010031250A (en) * 1997-10-20 2001-04-16 카알 제이. 밀러 Quinone diimine as a rubber additive
WO2004098601A1 (en) 2003-05-06 2004-11-18 Chemon Inc. As a pkc inhibitor, inhibitor for angiogenesis containing 6-anilinoquinoline-5,8-quinone as an effective ingredient
EP1801104A2 (en) * 2005-12-21 2007-06-27 Chevron Oronite Company LLC Benzo[b]perhydroheterocyclic arylamines and lubricating oil compositions

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010031250A (en) * 1997-10-20 2001-04-16 카알 제이. 밀러 Quinone diimine as a rubber additive
WO2004098601A1 (en) 2003-05-06 2004-11-18 Chemon Inc. As a pkc inhibitor, inhibitor for angiogenesis containing 6-anilinoquinoline-5,8-quinone as an effective ingredient
EP1801104A2 (en) * 2005-12-21 2007-06-27 Chevron Oronite Company LLC Benzo[b]perhydroheterocyclic arylamines and lubricating oil compositions

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