KR20090068400A - Rubber composition for tire innerliner - Google Patents

Rubber composition for tire innerliner Download PDF

Info

Publication number
KR20090068400A
KR20090068400A KR1020070135986A KR20070135986A KR20090068400A KR 20090068400 A KR20090068400 A KR 20090068400A KR 1020070135986 A KR1020070135986 A KR 1020070135986A KR 20070135986 A KR20070135986 A KR 20070135986A KR 20090068400 A KR20090068400 A KR 20090068400A
Authority
KR
South Korea
Prior art keywords
rubber
weight
parts
tire
weight part
Prior art date
Application number
KR1020070135986A
Other languages
Korean (ko)
Other versions
KR100943526B1 (en
Inventor
이형재
이광재
Original Assignee
한국타이어 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국타이어 주식회사 filed Critical 한국타이어 주식회사
Priority to KR1020070135986A priority Critical patent/KR100943526B1/en
Publication of KR20090068400A publication Critical patent/KR20090068400A/en
Application granted granted Critical
Publication of KR100943526B1 publication Critical patent/KR100943526B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
    • C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
    • 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
    • B60C1/0008—Compositions of the inner liner
    • 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
    • C08K11/00—Use of ingredients of unknown constitution, e.g. undefined reaction products
    • C08K11/005—Waste materials, e.g. treated or untreated sewage sludge
    • 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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L17/00—Compositions of reclaimed rubber
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/20—Recycled plastic

Abstract

A tire inner liner rubber composition is provided to improve air resistance permeation and crack resistance. A tire inner liner rubber comprises: 60-100 weight part of halogenated butyl rubber, 0-40 weight part of natural rubber, 10-40 weight part of recycled butyl rubber, 40-70 weight part of carbon black, 1-7 weight part of waste tire minute powder. The waste tire minute powder is pulverized at room temperature has the particle size of over 100 mesh.

Description

타이어 인너라이너용 고무조성물{Rubber composition for tire innerliner} Rubber composition for tire inner liner {Rubber composition for tire innerliner}

본 발명은 자동차용 래디얼 타이어의 인너라이너 조성물에 관한 것으로, 더욱 상세하게는 폐타이어 미세 분말을 포함하는 조성물에 관한 것이다. The present invention relates to an innerliner composition of a radial tire for an automobile, and more particularly, to a composition comprising waste tire fine powder.

인너라이너는 기본적으로 타이어에 범용으로 사용되는 고무 성분중 가장 가격이 비싸기 때문에 원가절감을 위한 노력이 지속되어 왔다. 이러한 노력의 일환으로 두께 감소를 통한 경량화를 지속적으로 추구하고 있으나, 일정 이하의 두께를 가질 경우 내공기 투과성능 및 내크랙성능 저하 문제로 인해 특정 이하로는 두께 감소가 어려운 실정이다. Since the inner liner is the most expensive rubber component used in general purpose in tires, efforts have been made to reduce costs. As part of such efforts, the company has continually pursued the weight reduction through the reduction of the thickness. However, if the thickness is less than a certain thickness, it is difficult to reduce the thickness below a certain amount due to the problem of lowering the air permeation performance and the crack resistance.

또한 최근 몇 년 사이에 재생부틸 고무를 사용하려는 노력이 있어 왔으며 실제적으로 각종 성능과 원가를 고려한 적정 비율로 개발되어 사용중이기도 한다. 본 발명 또한 이러한 노력의 일환으로 이루어졌다. In recent years, there have been efforts to use recycled butyl rubber, and it is actually being developed and used at an appropriate ratio considering various performances and costs. The present invention has also been made as part of this effort.

최근에는 환경 관련하여 폐기물 재활용에 대한 관심이 더욱 높아지고 있다. 이러한 노력중 하나로 폐타이어를 활용한 기술들이 속속 개발되어지고 있고, 그 중 일부는 이미 상업화 적용 단계에 있거나 적용 중이다. 본 기술은 이 가운데에서도 폐타이어 미분말을 활용하는 것에 관한 것이다. In recent years, there has been a growing interest in recycling waste related to the environment. As one of these efforts, technologies using waste tires are being developed one after another, some of which are already in the commercialization stage or are being applied. The technology is also concerned with the use of waste tire fine powder.

일반적으로 폐타이어는 냉동 분쇄 방식으로 미세 분말 제조가 이루어져 있다. 이러한 기술은 냉동화 하기 위해 사용하는 냉매 (액화 질소) 가격으로 인해 가격 경쟁력이 떨어지고 그 구조가 타이어 용도에 맞지 않게 발달되지 않은 원형으로 제조이기에 타이어 사용에 적합하지 못하였다. In general, the waste tire is made of fine powder by freeze grinding method. This technique is not suitable for tire use because it is inexpensive due to the price of refrigerant (liquefied nitrogen) used for refrigeration and its structure is manufactured in a shape that is not developed for the purpose of the tire.

하지만 최근에는 상온에서 저렴하게 미세 분말화가 가능한 기술들이 개발되었고, 이렇케 제조되어진 미세분말은 발달된 구조를 갖고 있어서 다른 재료와도 혼용성이 개선된 물성을 보인다. However, in recent years, technologies have been developed that can be finely powdered at room temperature inexpensively, and thus the micropowders thus prepared have an advanced structure and thus exhibit improved physical compatibility with other materials.

그러나, 이러한 상온 분쇄 기술을 이용하여 제조된 폐타이어 미세분말을 인너라이너 고무 조성물에 배합하는 연구에 대해서는 거의 알려진 바가 없다. However, little is known about the study of blending the waste tire fine powder prepared by using the normal temperature grinding technique to the innerliner rubber composition.

상기한 문제점을 해결하기 위해 본 발명은 폐타이어 미세분말을 인너라이너 고무 조성물에 사용하면서도 타이어의 제반성능은 향상시킬 수 있는 타이어 인너라이너 조성물을 제공하는 것을 목적으로 한다. In order to solve the above problems, an object of the present invention is to provide a tire inner liner composition which can improve the overall performance of a tire while using waste tire fine powder in an inner liner rubber composition.

상기의 목적을 달성하기 위하여 본 발명은 할로겐화 부틸고무 60-100 중량부와 천연고무 0-40 중량부로 이루어진 원료고무 100중량부에 대해, 재생부틸고무 10-40 중량부, 카본블랙 40-70 중량부 및 폐타이어 미세 분말 1-7 중량부를 포함하는 타이어 인너라이너 고무 조성물을 제공한다. In order to achieve the above object, the present invention is based on 100 parts by weight of the raw material rubber consisting of 60-100 parts by weight of halogenated butyl rubber and 0-40 parts by weight of natural rubber, 10-40 parts by weight of regenerated butyl rubber, 40-70 parts by weight of carbon black. To provide a tire inner liner rubber composition comprising 1-7 parts by weight of the waste tire fine powder.

본 발명의 원료고무로서 할로겐화 부틸고무 60-100 중량부와 천연고무 0-40 중량부를 사용하는 바, 할로겐화 부틸고무를60중량부 이하 사용할 경우 내공기 투과성능이 현저히 저하하는 문제점이 있다. When using 60-100 parts by weight of halogenated butyl rubber and 0-40 parts by weight of natural rubber as the raw material rubber of the present invention, there is a problem that the air permeation performance is significantly lowered when 60 parts by weight or less of the halogenated butyl rubber is used.

재생부틸고무의 경우 10중량부 미만이면, 원가절감 및 내공기 투과성 향상 등 재생 부틸고무를 사용한 목적에 위반되는 문제가 있고, 40중량부 초과이면 고무 가교 밀도를 떨어뜨려 내크랙 성장성이 크게 하락하는 문제가 있다. If the recycled butyl rubber is less than 10 parts by weight, there is a problem in violation of the purpose of using the recycled butyl rubber, such as cost reduction and improved air permeability, and if it exceeds 40 parts by weight, the rubber crosslinking density is lowered, which greatly reduces crack growth. there is a problem.

또한 카본블랙 40-70 중량부를 사용하는 것이 바람직한 바, 그 함량이 40중량부 미만이면 보강 충진제인 카본블랙이 적어 고무의 물성이 하락하는 문제가 있고, 70중량부 초과이면 부틸고무의 이물질로 작용하여 내공기 투과성 및 내열안정성을 하락하는 문제가 있다. In addition, it is preferable to use 40 to 70 parts by weight of carbon black. If the content is less than 40 parts by weight, there is a problem that the physical properties of the rubber decreases due to less carbon black as a reinforcing filler, and when it exceeds 70 parts by weight, it acts as a foreign substance of butyl rubber. Therefore, there is a problem of decreasing air permeability and heat stability.

본 발명의 타이어 인너라이너 고무조성물은 폐타이어 미세 분말을 포함하는 바, 폐타이어 미세 분말을 사용할 경우 가교된 미세 입자가 사용됨으로써 균열의 전파를 우회시키거나 방지하는 역할을 하게 됨으로써 내크랙성능이 개선된다. The tire inner liner rubber composition of the present invention includes waste tire fine powder, and when the waste tire fine powder is used, the crosslinked fine particles are used to bypass or prevent the propagation of cracks, thereby improving crack resistance. do.

또한 filler 함량이 일반 카본 블랙과 달리 보강성이 크게 없는 상태에서 증가됨으로써 모듈러스 등의 물성 변화 또는 이로 인한 내크랙성능 변화없이 내공기 투과성능이 개선되는 효과를 가져온다. In addition, since the filler content is increased in the state without much reinforcement unlike general carbon black, the air permeation performance is improved without a change in physical properties such as modulus or a crack resistance.

폐타이어 미세분말의 입자크기는 100메쉬이상이 바람직한 바, 그 미만이면 이물질로 작용하여 물성이 저하하는 문제가 있다. Since the particle size of the waste tire fine powder is preferably 100 mesh or more, if it is less than that, there is a problem of deteriorating physical properties.

본 발명에 의한 인너라이너 고무조성물은 경우 원가는 절감시키면서도 기타 성능 저하가 거의 없으며 오히려 내크랙성능과 내공기 투과성능 등의 성능을 개선시킨다. Inner liner rubber composition according to the present invention, while reducing the cost, there is little other performance deterioration and rather improves the performance such as crack resistance and air permeation performance.

이하, 본 발명을 실시예에 의거하여 더욱 상세히 설명하면 다음과 같다. 단, 본 발명은 실시예에 의해 제한되는 것은 아니다. Hereinafter, the present invention will be described in more detail with reference to Examples. However, the present invention is not limited by the examples.

[실시예] EXAMPLE

본 발명의 고무 조성물은 할로겐화 부틸고무 80중량부와 천연고무 20중량부로 이루어진 고무성분 100중량부에 대하여 카본블랙 60중량부와 재생부틸고무 20 중량부 및 하기 배합표와 같은 통상의 조성물을 가지고 평가하였다. The rubber composition of the present invention was evaluated with a conventional composition such as 60 parts by weight of carbon black and 20 parts by weight of regenerated butyl rubber and 100 parts by weight of a rubber component consisting of 80 parts by weight of halogenated butyl rubber and 20 parts by weight of natural rubber. .

동일 조성물에 대해 아래 표1 조성으로 이루어진 120 mesh - 180 mesh사이의 입자 사이즈를 갖는 상온 분쇄된 폐타이어 미세 분말을 filler 개념으로 각 3, 5, 10 중량부 배합하여 평가한 시험물 실시예 1, 2 및 비교예 1, 2를 각각에 대해 미가류 물성 (Rheo. Mooney), 인장물성, 공기 투과 계수, 크랙 성장 길이 등을 평가하였다. Test material Example 1, evaluated by mixing 3, 5, 10 parts by weight of each of the finely ground pulverized waste tire fine powder having a particle size of 120 mesh to 180 mesh consisting of the composition of Table 1 in the filler concept 2 and Comparative Examples 1 and 2 were evaluated for unvulcanized physical properties (Rheo. Mooney), tensile properties, air permeability coefficient, crack growth length and the like.

상기 고무 조성물을 혼합하여 이를 170℃에서 10분 동안 가류하여 시편을 제 조하였다. The rubber composition was mixed and vulcanized at 170 ° C. for 10 minutes to prepare a specimen.

(1) MDR(Moving Die Rheometer) : 미가류 고무 시편에 온도를 가하여 시간이 지날수록 가황 반응을 통해 고무의 torque값이 증가하는 값을 측정하여 고무의 가공성과 가류특성을 측정하는 장비로써 가장 torque치가 높을 때의 값을 Tmax, 가장 낮을 때의 값을 Tmin으로 하고 Torque값이 max치에 비해 30%에 해당하는 시간을 t30, t90으로 설정한다. ㅇt30과 t90이 짧을 경우 가류속도가 빨라짐을 의미한다. (1) MDR (Moving Die Rheometer): A device that measures the processability and vulcanization characteristics of rubber by measuring the value that the torque value of rubber increases through vulcanization reaction by applying temperature to unvulcanized rubber specimens over time. Set Tmax as the value when the value is high and Tmin as the value when the value is low, and set the time that the Torque value is 30% compared to the max value as t30 and t90. ㅇ Shorter t30 and t90 means faster vulcanization speed.

(2) M.V(Mooney Viscometer) : 무늬 점도 및 고무의 스코치 시간을(2) M.V (Mooney Viscometer): It measures the viscosity of the pattern and the scorch time of rubber.

측정하는 장비로써 점도가 높을수록 가공성이 어려워지는 것을 의미하며, 스코치 시간 (t5)가 짧을수록 가공중에 경화반응이 일어나서 가공이 어려워지는 것을 측정하는 척도이다.As a measuring device, the higher the viscosity, the more difficult the workability. The shorter the scorch time (t5), the harder the reaction occurs during processing.

(3) S-S (Strain-Stress)를 측정하는 내용으로써 Hs는 고무의 경도를 표현하고 300mod.는 300% 변형하였을 때 들어가는 힘을 측정하는 것으로서 통상 단위는 (Kg/cm2) 높을수록 고무가 변형하기 위해 많은 힘이 필요함을 의미한다. Tb.는 시편을 최대로 늘리다가 파괴되었을 때 힘으로 높을수록 단위는 (Kg/cm2)이다. Eb.는 최대로 늘리다가 파괴되었을 때의 변형량으로써 단위는 (%) 이다.(3) SS representing the Hs hardness of the rubber as the information for measuring the (Strain-Stress), and 300mod. Is the normal unit as measuring the entering force when deformed by 300% was higher (Kg / cm 2) Rubber modified It means a lot of power to do it. Tb. Is the unit with (Kg / cm 2 ) the maximum length of the specimen and the higher the force at breakage. Eb. Is the amount of deformation at maximum extension and then destruction. The unit is (%).

(4) F-F (Fatigue to failure) : 내피로성을 측정하기 위한 시험으로 반폭피로를 통해 시편이 끊어지기까지의 피로 싸이클을 측정하였다. 값을 클수록 유리하며 본 시험에서는 118%의 변형을 반복적으로 가하였다.(4) F-F (Fatigue to failure): Fatigue to failure (F-F) is a test to measure fatigue resistance. Larger values are advantageous and in this test, 118% of the strain was repeatedly applied.

(5) 데마샤 (Demmttia) 크랙성장길이 : 내크랙성을 측정하기 위한 시험으로 반복피로를 통해 크랙이 성장한 길이 (mm)를 측정하였다. 값은 작을수록 유리하다. 본 시험에서는 4만 싸이클의 피로를 주었을 때 성장한 크랙 길이를 표현하였다.(5) Demmttia crack growth length: A test for measuring crack resistance, and the length of crack growth (mm) was measured through repeated fatigue. Smaller values are advantageous. In this test, the crack lengths that were grown after 40,000 cycles of fatigue were expressed.

(6) 공기 투과 계수 : 내공기 투과성을 측정하기 위해서 고무시편의 양쪽에 1기압의 공기압 차이를 적용시키고, 1시간동안 시편의 단위면적당 시편의 두께를 통해 이동된 공기의 양을 나타낸 것이다. 단위는 ml[SPT]mm/m2 760mmHg Hour이다. 작을수록 투과된 공기 양이 적은 것이다.(6) Air permeability coefficient: To measure the air permeability, apply the difference of air pressure of 1 atmosphere on both sides of rubber specimen and show the amount of air moved through the thickness of specimen per unit area of specimen for 1 hour. The unit is ml [SPT] mm / m 2 760mmHg Hour. The smaller it is, the less air is permeated.

표1. 폐타이어 미세분말 구성 성분 Table 1. Waste Tire Fine Powder Components

구분division 함량(%)content(%) Polymer content (%)Polymer content (%) 50-6050-60 Carbon black content (%)Carbon black content (%) 20-3020-30 Ash content (%)Ash content (%) 5-75-7 Volatile content (%)Volatile content (%) 6-106-10 비중 (25℃)Specific gravity (25 ℃) 1.20-1.301.20-1.30

표2. 배합예Table 2. Formulation example

구분division 비교예1Comparative Example 1 비교예 2Comparative Example 2 실시예 1Example 1 실시예 2Example 2 브로모 부틸Bromo butyl 8080 8080 8080 8080 천연 고무caoutchouc 2020 2020 2020 2020 카본 블랙Carbon black 6060 6060 6060 6060 재생부틸고무Recycled Butyl Rubber 2020 2020 2020 2020 폐타이어 미세분말Waste Tire Fine Powder 00 1010 33 55 프로세스 오일Process oil 66 66 66 66 스테아린 산Stearic acid 0.50.5 0.50.5 0.50.5 0.50.5 산화 아연zinc oxide 55 55 55 55 석유계 수지 (1) Petroleum-based resin (1) 22 22 22 22 석유계 수지 (2) Petroleum Resin (2) 55 55 55 55 황sulfur 0.50.5 0.50.5 0.50.5 0.50.5

(1) 방향족을 주성분으로 하여 이루어진 탄화수소계 수지, 상품명 ST40MS (1) Hydrocarbon-based resin composed mainly of aromatics, trade name ST40MS

(2) C5계 탄화수소계 수지, 상품명 ESCOREZ1102 (2) C5 hydrocarbon resin, trade name ESCOREZ1102

표 3. 시험 결과 예 Table 3. Example Test Results

Test 항목Test item 비교예 1Comparative Example 1 비교예 2 Comparative Example 2 실시예 1Example 1 실시예 2Example 2 MDR (170℃)MDR (170 ℃) Tmax Tmin t30 t90Tmax Tmin t30 t90 7.9 1.7 3.1 6.57.9 1.7 3.1 6.5 8.2 1.9 2.5 6.28.2 1.9 2.5 6.2 8.0 1.7 3.0 6.38.0 1.7 3.0 6.3 8.0 1.8 2.7 6.38.0 1.8 2.7 6.3 M.V (125℃)M.V (125 ℃) ML1+4 t5ML1 + 4 t5 42 24.842 24.8 44 23.344 23.3 43 24.043 24.0 43 23.543 23.5 S-S(170℃ *10)S-S (170 ℃ * 10) Hs 300mod. Eb. Tb.Hs 300 mod. Eb. Tb. 52 31 760 8452 31 760 84 54 27 700 7454 27 700 74 53 30 760 8353 30 760 83 53 30 750 8153 30 750 81 FF (Kc, 118%)FF (Kc, 118%) 358358 290290 430430 480480 데마샤 (4만)Demasha (40,000) 31.531.5 19.819.8 32.232.2 21.521.5 내공기 투과계수Air permeation coefficient 8.338.33 8.208.20 8.308.30 8.218.21

상기 표 2에서와 같은 배합 조성물을 갖는 고무 시편으로 다양한 시험을 실시하였다. Various tests were carried out with rubber specimens having a formulation composition as in Table 2 above.

Rheometer와 MV 점도기를 이용하여 가류되기 전의 물성을 측정한 결과, 동등 수준의 물성을 획득하였으며 인장물성 측정 결과 또한 유사한 물성을 확인하였다. As a result of measuring the physical properties before vulcanization by using a rheometer and an MV viscometer, equivalent physical properties were obtained.

내피로성능을 확인하기 위해 FF 시험법을 통하여 반복 피로를 통해 시편이 끊어지기까지의 피로사이클을 측정하였고, 내크랙성을 평가하기 위해 반복피로(40000싸이클)를 통해 크랙이 성장한 길이를 측정하였다. In order to confirm fatigue resistance, the fatigue cycle until the specimen was broken through repeated fatigue was measured by FF test, and the length of crack growth was measured through repeated fatigue (40000 cycles) to evaluate crack resistance. .

FF 시험법 결과는 숫자가 클수로 유리하며, 내크랙성은 수치가 작을수록 유리하다. FF test results are advantageous in the larger number, and smaller crack resistance is advantageous.

본 시험결과 내피로성능은 동등 이상의 수준을 보였으나, 10 중량부 정도로 다량 함유될 경우 오히려 저하하는 물성을 보였으나, 내 크랙성능의 경우 미세 분말의 함량이 높을수록 성능이 유리함을 알 수 있었다. 이는 미세분말이 크랙 성장 을 방해하는 역할을 하기 때문으로 판단된다. As a result of this test, fatigue resistance was equal to or higher than the equivalent level, but when contained in a large amount of about 10 parts by weight, the physical properties were deteriorated. However, cracking performance was found to be more favorable as the content of the fine powder was higher. This is because fine powder plays a role in preventing crack growth.

또한 내공기 투과성을 측정하기 위해 고무시편의 양쪽에 1기압의 공기압 차이를 적용시키고, 1시간 동안 시편의 단위면적당 시편의 두께를 통해 이동된 공기의 양을 측정하였으며 이 결과 또한 미세분말이 함유될 때 유리한 특성을 확인할 수 있었으며 이는 미세분말이 공기 투과를 억제하는 역할을 하기 때문으로 판단된다. In addition, the air pressure difference of 1 atm was applied to both sides of the rubber specimen in order to measure the air permeability, and the amount of air moved through the thickness of the specimen per unit area of the specimen was measured for 1 hour. At this time, the favorable characteristics could be confirmed, which is because the fine powder plays a role of suppressing air permeation.

120mesh 이상으로 상온에서 폐타이어를 분쇄하여 미세분말을 제조한 후 인너라이너에 응용할 경우 폐타이어 재활용이라는 환경 개선 측면 효과와 원가 절감, 기타 물성이 동등한 수준에서 인너라이너의 주요 성능인 내크랙성능과 내공기 투과성능이 유리해짐을 확인할 수 있다. When fine powders are manufactured by grinding waste tires at room temperature above 120 mesh and applied to inner liners, the effects of environmental improvement, cost reduction, and other physical properties of waste tire recycling are at the same level. It can be seen that the air permeability is advantageous.

Claims (2)

할로겐화 부틸고무 60-100 중량부와 천연고무 0-40 중량부, 재생부틸고무 10-40 중량부, 카본블랙 40-70 중량부 및 폐타이어 미세 분말 1-7 중량부를 포함하는 타이어 인너라이너 고무 조성물.Tire inner liner rubber composition comprising 60-100 parts by weight of halogenated butyl rubber and 0-40 parts by weight of natural rubber, 10-40 parts by weight of regenerated butyl rubber, 40-70 parts by weight of carbon black and 1-7 parts by weight of waste tire fine powder . 제 1항에 있어서, 폐타이어 미세분말은 상온에서 분쇄된 100 메쉬(mesh)이상의 입자크기인 것을 특징으로하는 타이어 인너라이너 고무조성물. The tire inner liner rubber composition according to claim 1, wherein the waste tire fine powder has a particle size of 100 mesh or more pulverized at room temperature.
KR1020070135986A 2007-12-24 2007-12-24 Rubber composition for tire innerliner KR100943526B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070135986A KR100943526B1 (en) 2007-12-24 2007-12-24 Rubber composition for tire innerliner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070135986A KR100943526B1 (en) 2007-12-24 2007-12-24 Rubber composition for tire innerliner

Publications (2)

Publication Number Publication Date
KR20090068400A true KR20090068400A (en) 2009-06-29
KR100943526B1 KR100943526B1 (en) 2010-02-22

Family

ID=40995799

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070135986A KR100943526B1 (en) 2007-12-24 2007-12-24 Rubber composition for tire innerliner

Country Status (1)

Country Link
KR (1) KR100943526B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105037972A (en) * 2015-07-09 2015-11-11 安徽省华洋橡胶有限公司 Antifreeze rubber inner tube material
CN105037970A (en) * 2015-07-09 2015-11-11 安徽省华洋橡胶有限公司 Antibacterial butyl rubber inner tube material
WO2018020353A1 (en) 2016-07-29 2018-02-01 Compagnie Générale Des Établissements Michelin Tyre with insert
WO2018020354A1 (en) 2016-07-29 2018-02-01 Compagnie Générale Des Établissements Michelin Tire with insert for sidewall
WO2018055537A1 (en) 2016-09-25 2018-03-29 Compagnie Générale Des Établissements Michelin Tyre with an insert having a high modulus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6444743B1 (en) * 1999-08-27 2002-09-03 Bridgestone/Firestone North American Tire, Llc Rubber compositions containing ground curing bladder rubber
KR100593032B1 (en) * 2005-03-21 2006-06-28 금호타이어 주식회사 Inner liner rubber composition including aliphatic resin and aromatic resin for tire
KR100650382B1 (en) 2005-05-18 2006-11-27 금호타이어 주식회사 Inner liner Rubber Composition for Truck, Bus Radial Tires
JP2007217558A (en) * 2006-02-16 2007-08-30 Bridgestone Corp Tire

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105037972A (en) * 2015-07-09 2015-11-11 安徽省华洋橡胶有限公司 Antifreeze rubber inner tube material
CN105037970A (en) * 2015-07-09 2015-11-11 安徽省华洋橡胶有限公司 Antibacterial butyl rubber inner tube material
WO2018020353A1 (en) 2016-07-29 2018-02-01 Compagnie Générale Des Établissements Michelin Tyre with insert
WO2018020354A1 (en) 2016-07-29 2018-02-01 Compagnie Générale Des Établissements Michelin Tire with insert for sidewall
FR3054482A1 (en) * 2016-07-29 2018-02-02 Michelin & Cie PNEUMATIC WITH INSERT
WO2018055537A1 (en) 2016-09-25 2018-03-29 Compagnie Générale Des Établissements Michelin Tyre with an insert having a high modulus
FR3056448A1 (en) * 2016-09-25 2018-03-30 Compagnie Generale Des Etablissements Michelin PNEUMATIC WITH INSERT WITH HIGH MODULE
CN109789727A (en) * 2016-09-25 2019-05-21 米其林集团总公司 Tire with high-modulus insertion piece
CN109789727B (en) * 2016-09-25 2020-11-24 米其林集团总公司 Tire with high modulus insert

Also Published As

Publication number Publication date
KR100943526B1 (en) 2010-02-22

Similar Documents

Publication Publication Date Title
Mostafa et al. Rubber-filler interactions and its effect in rheological and mechanical properties of filled compounds
EP2883908B1 (en) Nbr composition
KR100943526B1 (en) Rubber composition for tire innerliner
CN109400979B (en) Rubber vibration damping material with long fatigue life and preparation method thereof
CN103012979A (en) Rubber composition with low breathability
EP1928951B1 (en) Rubber mixture for inner liner of pneumatic vehicle tyres
JP3175016B2 (en) High hardness rubber composition
EP1893677B1 (en) Rubber mixture and tyre
KR101745213B1 (en) Anti-vibration rubber composition for absorbing vibration of engine
EP0481810B1 (en) Rubber composition for laminated vibrationproofing structure
KR101135965B1 (en) Rubber composition of tire humpstrip for truck and bus
Gao et al. Fabricated coordinate and ionic bonds in chemically cross‐linked ethylene acrylic elastomer for high‐performing elastomers
KR980009356A (en) Rubber compositions for hump strips of tires
Geng et al. Tunable Van der Waals interfacial interaction for ultrahigh-damping rubber bends
KR100746335B1 (en) Tire inner liner rubber composition
KR101098050B1 (en) Rubber Composition for Tire
KR101776413B1 (en) Nano zinc oxide filled weather strip rubber composition and weather strip for car using the same
CN116925473B (en) Preparation method and application of sound-insulating and shock-absorbing rubber material
KR102254988B1 (en) Rubber compound for a tire tread and a tire comprising the same
KR101829144B1 (en) Tire innerliner rubber composition and Tire by using the same
KR102458481B1 (en) Rubber composition for tire treade comprising platy type magnesium silicate and tire by using the same
KR102226736B1 (en) Method for manufacturing rubber composition for tire tread
KR100733018B1 (en) Tire innerliner rubber composition
KR20000046696A (en) Inner-liner rubber composition for air-contained tire
Gunawan et al. Optimization of Natural Rubber Formulation for Military Vehicle Tread Using Filler Carbon Black Type N220/N550

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application
J201 Request for trial against refusal decision
J301 Trial decision

Free format text: TRIAL DECISION FOR APPEAL AGAINST DECISION TO DECLINE REFUSAL REQUESTED 20090512

Effective date: 20100125

S901 Examination by remand of revocation
GRNO Decision to grant (after opposition)
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130205

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee