KR20030062174A - Highly durable rubber compounds - Google Patents

Highly durable rubber compounds Download PDF

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Publication number
KR20030062174A
KR20030062174A KR1020020002618A KR20020002618A KR20030062174A KR 20030062174 A KR20030062174 A KR 20030062174A KR 1020020002618 A KR1020020002618 A KR 1020020002618A KR 20020002618 A KR20020002618 A KR 20020002618A KR 20030062174 A KR20030062174 A KR 20030062174A
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weight
parts
rubber
rubber composition
resin
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KR1020020002618A
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Korean (ko)
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이경원
이정희
서일건
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엘지전선 주식회사
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Priority to KR1020020002618A priority Critical patent/KR20030062174A/en
Publication of KR20030062174A publication Critical patent/KR20030062174A/en

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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
    • C08K5/13—Phenols; Phenolates
    • 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
    • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
    • C08K5/3432—Six-membered rings
    • 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
    • C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
    • C08K5/3445—Five-membered rings
    • 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
    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

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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)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: A rubber composition having excellent durability, wearing resistance, and long-term reliability against heavy load, or aging or fatigue under elevated temperature is provided. CONSTITUTION: The rubber composition having high durability is characterized by comprising 100 parts by weight of a natural or synthetic rubber, and 5 to 30 parts by weight of a modified phenol resin, or 5 to 20 parts by weight of a cashew nut shell liquid(CNSL). The rubber composition may further comprise 0.1 to 3 parts by weight of a quinoline compound and 0.1 to 3 parts by weight of a zinc oxide imidazole compound as an anti-oxidant.

Description

고내구성 고무조성물{Highly durable rubber compounds}Highly durable rubber compounds

본 발명은 고무조성물에 관한 것으로서, 보다 상세하게는 고온에서 장기간에 걸친 가혹한 하중과 조건에서 사용되는 고무조성물에 관한 것이다.FIELD OF THE INVENTION The present invention relates to rubber compositions, and more particularly to rubber compositions for use under severe loads and conditions over long periods of time at high temperatures.

일반적으로 고무재료는 그 특성에 있어 다른 고분자 제품에 비해 뛰어난 내구성을 가지고 있는 것으로 알려져 있다. 그러나, 가혹 환경에서 고무 제품이 사용될 경우, 그 특성의 강화를 위해 산화 방지제나 혹은 내구성이 뛰어난 고분자 재료와의 블렌드를 통해 그 물성을 강화하는 방법이 일반적이다. 산화방지제의 선정을 위해 고려할 사항은 산화방지제의 종류에 따라 휘발성, 용해성, 안정성, 농도, 융점 등 물리적 성질과 화학적인 작용이 각기 다르므로 용도에 따라 최적의 산화방지제를 선택하여야 한다.In general, rubber materials are known to have superior durability in comparison with other polymer products. However, when rubber products are used in harsh environments, it is common to enhance their properties through blending with antioxidants or highly durable polymer materials to enhance their properties. Consideration for the selection of antioxidants has different physical properties and chemical effects such as volatility, solubility, stability, concentration, melting point, etc., depending on the type of antioxidants.

베이스 레진으로 사용되는 고무는 천연고무(NR)와 스타이렌 부타디엔 고무(SBR)가 대표적이며 이밖에도 범용으로 사용되는 니트릴 고무(NBR), 클로로프렌 고무(CR) 등이 있다.Rubbers used as base resins are representative of natural rubber (NR) and styrene butadiene rubber (SBR), and nitrile rubber (NBR) and chloroprene rubber (CR) are also widely used.

종래의 기술에서는 고무의 기능에 따라 여러 가지 조합이 가능하며 모두 주쇄에 이중결합이 있어 가황시스템(cure system)에 의한 가교가 가능한 반면에 고온분위기나 장기간 시간이 경과함에 따라 산화되거나 노화되어 인장강도 및 신장율이 감소하고 경도가 증가하는 등 고무의 물성이 떨어지는 현상이 나타나는 문제점이 있다. 특히, 천연고무는 단독사용시 이중결합이 공기나 열에 의해 산화되기 쉬운 문제점이 있다.In the prior art, various combinations are possible depending on the function of the rubber, and all of them have double bonds in the main chain, so that they can be crosslinked by a vulcanization system, while they are oxidized or aged with high temperature or long time. And there is a problem in that the physical properties of the rubber, such as elongation is decreased and hardness is increased. In particular, natural rubber has a problem that double bonds are easily oxidized by air or heat when used alone.

본 발명은 상기와 같은 문제점을 해결하기 위하여 창출된 것으로서 본 발명의 목적은, 우수한 내마모성과 내구성으로 인하여 시간의 경과나 온도의 상승으로 인한 재료의 수명 저하를 획기적으로 감소시킬 수 있는 고무조성물을 제공하는 것이다.The present invention was created in order to solve the above problems, and an object of the present invention is to provide a rubber composition that can significantly reduce the deterioration of the life of a material due to the passage of time or temperature due to excellent wear resistance and durability. It is.

상기와 같은 본 발명의 목적은, 천연고무 혹은 합성고무 100 중량부와, 모디파이드 페놀 수지 5 ~ 30 중량부 또는 캐슈열매껍질액(CNSL) 수지 5 ~ 20 중량부와, 산화방지제로서 퀴놀린계 화합물 0.1 ~ 3 중량부 및 아연화이미다졸계 화합물 0.1 ~ 3 중량부로 구성되는 것을 특징으로 하는 고내구성 고무조성물에 의하여 달성된다.The object of the present invention as described above is 100 parts by weight of natural or synthetic rubber, 5 to 30 parts by weight of modified phenolic resin or 5 to 20 parts by weight of cashew heat medium liquid (CNSL) resin, and a quinoline compound as an antioxidant It is achieved by a highly durable rubber composition, characterized in that composed of 0.1 to 3 parts by weight and 0.1 to 3 parts by weight of the zinc imidazole compound.

본 발명에서는 고내구성과 내마모성을 확보하기 위하여 종래의 고무에 대하여 베이스 수지로서 모디파이드 페놀 수지와 캐슈열매껍질액 수지를 도입하였으며, 산화방지제로서 퀴놀린계 화합물과 아연화이미다졸계 화합물을 도입하였다.In the present invention, in order to secure high durability and wear resistance, a modified phenol resin and cashew heat medium liquid resin were introduced as a base resin with respect to conventional rubber, and a quinoline compound and a zinc imidazole compound were introduced as antioxidants.

본 발명의 그 밖의 목적, 특정한 장점 및 신규한 특징들은 이하의 상세한 설명과 바람직한 실시예로부터 더욱 분명해질 것이다.Other objects, specific advantages and novel features of the invention will become more apparent from the following detailed description and the preferred embodiments.

이하 본 발명에 따른 고내구성 고무조성물의 구성에 대하여 설명하기로 한다.Hereinafter, the configuration of the highly durable rubber composition according to the present invention will be described.

본 발명에서는 베이스 수지로서는 천연고무 혹은 합성고무 100 중량부에 대하여 모디파이드 페놀 수지 5 ~ 30 중량부를 혼합하거나 캐슈열매껍질액 수지 5 ~ 20 중량부를 혼합하였고, 산화방지제로서는 퀴놀린계 화합물 0.1 ~ 3 중량부와 아연화이미다졸계 화합물 0.1 ~ 3 중량부를 적용함으로써 가혹 조건에서도 고내구성과 고내마모성을 확보할 수 있는 고무조성물을 발명하였다.In the present invention, 5 to 30 parts by weight of the modified phenol resin or 5 to 20 parts by weight of the cashew nut shell liquid resin was mixed with 100 parts by weight of the natural rubber or the synthetic rubber as the base resin, and 0.1 to 3 weight of the quinoline compound as the antioxidant. By incorporating 0.1 to 3 parts by weight of zinc diimidazole-based compound and invented a rubber composition that can ensure high durability and high wear resistance even under severe conditions.

그 외에, 스테아린산 2 중량부, 산화아연 3 중량부, 카본블랙 50 중량부, 실리카 10 중량부, 프로세싱유 5 중량부, 기타 황과 가교촉진제를 첨가하였고, 적절한 가공방법에 의하여 혼련한 후 가황 현상이 일어나는 임계 온도 이상에서 가열, 가압하여 고무제품을 성형하였다.In addition, 2 parts by weight of stearic acid, 3 parts by weight of zinc oxide, 50 parts by weight of carbon black, 10 parts by weight of silica, 5 parts by weight of processing oil, other sulfur and a crosslinking accelerator were added, and vulcanization after kneading by an appropriate processing method. The rubber product was formed by heating and pressurizing above this critical temperature.

상기 합성고무로서는 스타이렌 부타디엔 고무(SBR), 니트릴 고무(NBR) 혹은 클로로프렌 고무(CR) 등을 적용하였다.As the synthetic rubber, styrene butadiene rubber (SBR), nitrile rubber (NBR), chloroprene rubber (CR) and the like were used.

상기 캐슈열매껍질액(CNSL; cashew nut shell liquid) 수지는 살리실릭산(salicilic acid) 유도체인 아나카딕산(anacardic acid)과 레소시놀(resorcinol) 유도체인 카돌(cardol)의 혼합물로서 추출이나 열처리를 통해 아나카돌(anacardol)로 되는 것을 특징으로 한다.The cashew nut shell liquid (CNSL) resin is a mixture of anacardic acid, which is a salicilic acid derivative, and cardol, which is a resorcinol derivative, for extraction or heat treatment. It is characterized in that through the anacardol (anacardol).

본 발명에 따른 보강성 충전제로는 상기와 같은 카본블랙 외에도 실리카를 단독 혹은 병행하여 사용할 수 있으며 경탄(CaCO3), 탈크(talc), 클레이(clay) 등도사용할 수 있으나 이들 충전제의 보강성은 카본블랙에 비해 떨어지는 단점이 있다.As the reinforcing filler according to the present invention, in addition to the carbon black as described above, silica may be used alone or in parallel, and hard carbon (CaCO 3 ), talc, clay, etc. may be used, but the reinforcing properties of these fillers are carbon black. There is a downside to falling.

이하 상기와 같은 구성을 갖는 본 발명에 따른 고내구성 고무조성물의 실시예 및 작용에 대하여 설명하기로 한다.Hereinafter will be described an embodiment and action of the highly durable rubber composition according to the present invention having the configuration as described above.

본 발명에 사용된 하이 로진 혹은 그 유도체인 모디파이드 페놀 수지 그리고 CNSL 수지의 경우 고온에서 탄력적이며 마찰을 증가시킴으로써 마모성을 감소시키는 특징을 가지고 있다. 이와 같은 특징을 통해서 본 발명에 따른 고무조성물은 고온에서 장기간에 걸친 가혹 조건에 대한 뛰어난 내구 수명을 갖게 된다. 즉, 가혹한 하중이나 승온에 따른 노화 혹은 피로 현상에 대해서도 고무 제품의 물성을 장기적으로 확보할 수 있게 되는 것이다.In the case of the high rosin or a derivative of phenol resin and CNSL resin used in the present invention, it is elastic at high temperature and has a feature of reducing wear by increasing friction. Through such a feature, the rubber composition according to the present invention has excellent durability life against long-term harsh conditions at high temperature. In other words, the physical properties of rubber products can be secured in the long term even against aging or fatigue caused by severe loads or elevated temperatures.

본 발명에 따른 실시예를 들자면 먼저 배합작업은 1차로 반바리 믹서에서 40rpm 로터(rotor)의 속도로 업사이드 다운(upside down) 방법으로 작업을 실시하였다.For example, according to the present invention, the compounding work was first performed in an upside down method at a speed of 40 rpm rotor in a Banbari mixer.

이 때, 천연고무를 일정한 점도가 될 때까지 반바리 믹서 내림작업(mastication)을 하여 배합성을 좋게 전처리를 한 후 반바리 믹서에 모디파이드 페놀 수지 혹은 CNSL(cashew nut shell liquid) 수지를 투입하고 산화방지제와 산화아연, 스테아린산과 흑색충전제인 카본블랙 및 백색 충전제인 실리카와 프로세싱유, 가공조제 등을 첨가하였다. 그리고 일정 시간 충분히 혼련하여 100℃ 부근의 온도에서 덤프아웃(dump out)시킨 다음 오픈롤(open roll)에서 황과 가교촉진제를 투입하여 5 ~ 20 분 정도의 시간에 걸쳐 믹싱(mixing) 및 블렌딩(blending)을 실시하였다.At this time, the natural rubber is semi-barrier mixer (mastication) until a certain viscosity, the pre-treatment is good premixing, and then the modified phenol resin or CNSL (cashew nut shell liquid) resin is added to the bari-bar mixer. Antioxidants, zinc oxide, stearic acid, carbon black (black filler) and silica (white filler), processing oil and processing aids were added. And kneading sufficiently for a certain time, dump out at a temperature around 100 ℃, and then sulfur and crosslinking accelerator in an open roll to mix and blend over a period of about 5 to 20 minutes ( blending).

인장 및 인열 시험용 시편제조는 300mm ×300mm ×2mm 크기의 스텐레스 재질 금형을 제작하여 25톤 압력의 유압프레스에 올려 놓고 미가교 생지고무를 투입하여 160℃에서 약 10분간 고온하에서 가교를 실시하여 KS M 6518 규격에 따른 가황고무 물리시험 방법을 적용하여 시험을 진행하였다.Specimen manufacturing for tensile and tear test is made of stainless steel mold of 300mm × 300mm × 2mm, placed on a hydraulic press of 25 ton pressure, uncrosslinked raw rubber, and crosslinked at 160 ℃ for 10 minutes at high temperature to make KS M The test was conducted by applying the vulcanized rubber physical test method according to the 6518 standard.

표 1은 본 발명에 따른 고내구성 고무조성물의 각 실시예에 따른 구성물질의 배합비율을 나타내었으며, 표 2는 물성평가 결과를 나타내었다.Table 1 shows the mixing ratio of the constituents according to each embodiment of the high durability rubber composition according to the present invention, Table 2 shows the results of the physical property evaluation.

각 실시예에 따른 구성물질의 배합비율Mixing ratio of constituent materials according to each embodiment 배 합 제Compound 비교예1Comparative Example 1 비교예2Comparative Example 2 실시예1Example 1 실시예2Example 2 실시예3Example 3 천연고무Natural rubber 100100 100100 100100 100100 100100 모디파이드페놀 레진Modified Phenolic Resin -- -- 1010 1010 -- CNSLCNSL -- -- -- -- 1010 폴리1,2-디하이드로-2,2,4-트리메틸퀴놀린Poly1,2-dihydro-2,2,4-trimethylquinoline 00 1One 00 1One 1One 2-머캅토톨루이미다졸2-mercaptotoluimidazole 00 1One 00 1One 1One 카본블랙(N-110)Carbon black (N-110) 5050 5050 5050 5050 5050 실리카(Zeoil 175)Silica (Zeoil 175) 1010 1010 1010 1010 1010 아로마틱 프로세싱유Aromatic Processing Oil 55 55 55 55 55 산화아연Zinc oxide 33 33 33 33 33 스테아린산Stearic acid 22 22 22 22 22 엔-옥시에틸렌벤조티아졸 술펜아미드N-oxyethylenebenzothiazole sulfenamide 1.51.5 1.51.5 1.51.5 1.51.5 1.51.5 테트라부틸 티우람 디설파이드Tetrabutyl thiuram disulfide 0.60.6 0.60.6 0.60.6 0.60.6 0.60.6 황sulfur 1.21.2 1.21.2 1.21.2 1.21.2 1.21.2

각 실시예에 따른 물성평가 결과Physical property evaluation result according to each example 물 성Properties 비교예1Comparative Example 1 비교예2Comparative Example 2 실시예1Example 1 실시예2Example 2 실시예3Example 3 상 온Room temperature 인장강도(kg/mm2)Tensile Strength (kg / mm 2 ) 1.991.99 2.052.05 2.202.20 2.182.18 2.342.34 신장율(%)Elongation (%) 520520 510510 600600 640640 635635 인열강도(kg/cm)Tear strength (kg / cm) 110110 120120 140140 145145 150150 경도(shore A)Hardness (shore A) 7070 7070 7272 7272 7272 인열강도(kgf/cm,120℃)Tear strength (kgf / cm, 120 ℃) 5353 5252 5555 5858 6060 가열노화(100℃,70Hr)Heat aging (100 ℃, 70Hr) 인장잔율(%)Tensile Residual (%) 9090 9292 9595 9898 9898 신장잔율(%)Elongation Retention (%) 8585 8888 7474 8181 7878 가열노화(120℃,30Hr)Heat aging (120 ℃, 30Hr) 인장잔율(%)Tensile Residual (%) 7070 7474 7979 8080 7979 신장잔율(%)Elongation Retention (%) 7373 7474 7575 7878 7575 마모량(CC,Pico 마모)Wear amount (CC, Pico wear) 0.01440.0144 0.01440.0144 0.01210.0121 0.01200.0120 0.00960.0096

비교예 1과 2에서는 천연고무(NR) 단독으로 사용한 경우 산화방지제의 차이에 따른 영향을 나타내었고, 이 때 산화방지제는 폴리1,2-디하이드로-2,2,4-트리메틸퀴놀린(poly1,2-dihydro-2,2,4-trimethylquinoline)과 2-머캅토톨루이미다졸(2-mercaptotolylimidazole)을 사용하였고, 가교 시스템은 황과 가교조제인 엔-옥시에틸렌 벤조티아졸 술펜아미드와 테트라부틸 티우람 디설파이드를 사용하였다.In Comparative Examples 1 and 2, the use of natural rubber (NR) alone showed an effect according to the difference of antioxidants, wherein the antioxidants were poly1,2-dihydro-2,2,4-trimethylquinoline (poly1, 2-dihydro-2,2,4-trimethylquinoline) and 2-mercaptotolylimidazole were used, and the crosslinking system was sulfur and a crosslinking aid of en-oxyethylene benzothiazole sulfenamide and tetrabutyl tea. Uram disulfide was used.

실시예 1 ~ 3에서는 본 발명에 따른 모디파이드 페놀 수지 혹은 CNSL 수지를 적용하였다. 먼저, 실시예 1과 2에서는 모디파이드 페놀 수지를 10 중량부 적용하였다. 이 때 적용된 모디파이드 페놀 수지는 소나무 뿌리로부터 추출법에 의해 용제 추출하여 얻은 로진으로서 알킬치환기를 포함하는 것을 특징으로 하는데 이는 높은 분산성과 보강 효과를 통해 고무조성물의 기계적 물성과 내열특성을 향상시키는 효과를 가져온다.In Examples 1 to 3, the modified phenol resin or CNSL resin according to the present invention was applied. First, in Examples 1 and 2 were applied 10 parts by weight of the modified phenol resin. The modified phenolic resin applied at this time is a rosin obtained by solvent extraction from pine roots by extraction method, and includes an alkyl substituent. Bring.

시험 결과에서도 이를 적용하지 않은 비교예 1과 2에 비해 상온 기계적 물성은 물론 고온 특성과 내열 특성, 마모 특성에 걸쳐 모두 우수한 특성을 나타내는 것을 확인할 수 있다.In the test results, compared to Comparative Examples 1 and 2, which do not apply, it can be seen that the mechanical properties, as well as high temperature properties, heat resistance, and wear properties are excellent.

또한, 산화방지제로서 퀴놀린계 화합물 0.1 ~ 3 중량부, 아연화이미다졸계화합물 0.1 ~ 3 중량부를 적용하는 경우 더욱 우수한 물성값을 나타내는 것을 확인할 수 있다. 실시예 3에서는 CNSL 수지를 적용한 경우의 특성 결과를 나타내었는데, 특히 마모량이 획기적으로 개선됨을 확인할 수 있는데, 이는 CNSL 수지가 모디파이드 페놀 수지와 마찬가지로 우수한 분산성과 보강 효과는 물론, 고온에서의 탄성 증가로 인한 마찰 증대를 통해 내마모성을 향상시키기 때문이다.In addition, when applying 0.1 to 3 parts by weight of quinoline-based compounds, 0.1 to 3 parts by weight of zinc-imidazole-based compounds as antioxidants it can be seen that it shows more excellent physical properties. In Example 3, the results of the characteristics of the CNSL resin were applied. In particular, it was confirmed that the amount of wear was remarkably improved. This is because the wear resistance is improved through increased friction.

상기 언급한 바와 같이 본 발명에 따른 고내구성 고무조성물에 의하면, 획기적으로 향상된 내마모성과 내구성을 바탕으로 하여 고온에서 장기간에 걸친 가혹 조건에 대한 뛰어난 내구수명을 갖게 된다. 즉, 가혹하중이나 승온에 따른 노화 혹은 피로 현상에 대하여도 기존에 확보할 수 없었던 장기간의 신뢰성을 갖는 특징이 있다.As mentioned above, according to the highly durable rubber composition according to the present invention, based on the dramatically improved wear resistance and durability, it has excellent durability life against long-term harsh conditions at high temperature. That is, there is a feature that has a long-term reliability that could not be secured previously against the aging or fatigue phenomenon due to severe load or elevated temperature.

비록 본 발명이 상기 언급된 바람직한 실시예와 관련하여 설명되어졌지만, 발명의 요지와 범위로부터 벗어남이 없이 다양한 수정이나 변형을 하는 것이 가능하다. 따라서 첨부된 특허청구범위는 본 발명의 요지에 속하는 이러한 수정이나 변형을 포함한다.Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims include such modifications and variations as fall within the spirit of the invention.

Claims (4)

천연고무 혹은 합성고무 100 중량부와 모디파이드 페놀 수지 5 ~ 30 중량부로 구성되는 것을 특징으로 하는 고내구성 고무조성물.High durability rubber composition, characterized in that consisting of 100 parts by weight of natural or synthetic rubber and 5 to 30 parts by weight of the modified phenol resin. 천연고무 혹은 합성고무 100 중량부와 캐슈열매껍질액(CNSL) 수지 5 ~ 20 중량부로 구성되는 것을 특징으로 하는 고내구성 고무조성물.High durability rubber composition, characterized in that consisting of 100 parts by weight of natural or synthetic rubber and 5 to 20 parts by weight of cashew nut shell liquid (CNSL) resin. 제 1 항에 있어서, 상기 모디파이드 페놀 수지는 알킬 치환기를 포함하는 것을 특징으로 하는 고내구성 고무조성물.The high durability rubber composition according to claim 1, wherein the modified phenol resin includes an alkyl substituent. 제 1 항 또는 제 2 항에 있어서, 산화방지제로서 퀴놀린계 화합물 0.1 ~ 3 중량부 및 아연화이미다졸계 화합물 0.1 ~ 3 중량부를 더 포함하는 것을 특징으로 하는 고내구성 고무조성물.The high durability rubber composition according to claim 1 or 2, further comprising 0.1 to 3 parts by weight of a quinoline compound and 0.1 to 3 parts by weight of a zinc imidazole compound as antioxidants.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100718164B1 (en) * 2005-12-28 2007-05-15 금호산업주식회사 Viscoelastic rubber compound for high damping
KR100790503B1 (en) 2006-06-07 2008-01-02 김운호 The product method and rubber to reduce abrasion
WO2015005568A1 (en) * 2013-07-12 2015-01-15 주식회사 엠엔비그린어스 Novel cardanol-based organic vulcanizing agent, production method for same and blended rubber composition for tyres using same

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JPH0598081A (en) * 1991-10-08 1993-04-20 Yokohama Rubber Co Ltd:The Rubber composition having high hardness
KR19990025415A (en) * 1997-09-12 1999-04-06 홍건희 Rubber Composition for Tire Bead Filler
KR20000073839A (en) * 1999-05-14 2000-12-05 신형인 Highly Hardness Rubber Composition Using Liquid Natural Rubber
KR20030020756A (en) * 2001-09-04 2003-03-10 금호산업 주식회사 Apex rubber composition for tire
KR20030042555A (en) * 2001-11-23 2003-06-02 한국타이어 주식회사 Rubber composition for tire tread

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0598081A (en) * 1991-10-08 1993-04-20 Yokohama Rubber Co Ltd:The Rubber composition having high hardness
KR19990025415A (en) * 1997-09-12 1999-04-06 홍건희 Rubber Composition for Tire Bead Filler
KR20000073839A (en) * 1999-05-14 2000-12-05 신형인 Highly Hardness Rubber Composition Using Liquid Natural Rubber
KR20030020756A (en) * 2001-09-04 2003-03-10 금호산업 주식회사 Apex rubber composition for tire
KR20030042555A (en) * 2001-11-23 2003-06-02 한국타이어 주식회사 Rubber composition for tire tread

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100718164B1 (en) * 2005-12-28 2007-05-15 금호산업주식회사 Viscoelastic rubber compound for high damping
KR100790503B1 (en) 2006-06-07 2008-01-02 김운호 The product method and rubber to reduce abrasion
WO2015005568A1 (en) * 2013-07-12 2015-01-15 주식회사 엠엔비그린어스 Novel cardanol-based organic vulcanizing agent, production method for same and blended rubber composition for tyres using same

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