KR100308879B1 - Highly Hardness Rubber Composition Using Liquid Natural Rubber - Google Patents
Highly Hardness Rubber Composition Using Liquid Natural Rubber Download PDFInfo
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- KR100308879B1 KR100308879B1 KR1019990017394A KR19990017394A KR100308879B1 KR 100308879 B1 KR100308879 B1 KR 100308879B1 KR 1019990017394 A KR1019990017394 A KR 1019990017394A KR 19990017394 A KR19990017394 A KR 19990017394A KR 100308879 B1 KR100308879 B1 KR 100308879B1
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- weight
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- rubber
- natural rubber
- high hardness
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 26
- 239000005060 rubber Substances 0.000 title claims abstract description 26
- 244000043261 Hevea brasiliensis Species 0.000 title claims abstract description 22
- 229920003052 natural elastomer Polymers 0.000 title claims abstract description 22
- 229920001194 natural rubber Polymers 0.000 title claims abstract description 22
- 239000000203 mixture Substances 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 title claims abstract description 14
- 238000004073 vulcanization Methods 0.000 claims abstract description 17
- 239000000853 adhesive Substances 0.000 claims abstract description 8
- 230000001070 adhesive effect Effects 0.000 claims abstract description 8
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000006229 carbon black Substances 0.000 claims abstract description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 239000011347 resin Substances 0.000 claims abstract description 5
- 239000008117 stearic acid Substances 0.000 claims abstract description 5
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 4
- 239000011593 sulfur Substances 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims abstract 2
- 229910001335 Galvanized steel Inorganic materials 0.000 claims 1
- 239000008397 galvanized steel Substances 0.000 claims 1
- 239000000314 lubricant Substances 0.000 claims 1
- 229920003049 isoprene rubber Polymers 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 229920003261 Durez Polymers 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- 230000003712 anti-aging effect Effects 0.000 abstract description 3
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 4
- 238000009864 tensile test Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 229920001875 Ebonite Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000010734 process oil Substances 0.000 description 2
- 241001313207 Gonepteryx rhamni Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- ONSIBMFFLJKTPT-UHFFFAOYSA-L zinc;2,3,4,5,6-pentachlorobenzenethiolate Chemical compound [Zn+2].[S-]C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl.[S-]C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl ONSIBMFFLJKTPT-UHFFFAOYSA-L 0.000 description 1
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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
- C08J3/11—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids from solid polymers
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/06—Sulfur
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
Abstract
본 발명은 액상천연고무를 이용한 고경도 고무조성물에 관한 것으로서 보다 상세하게는 고가인 합성 이소프렌 고무 대신에 합성 이소프렌 고무와 분자구조가 동일한 천연고무를 열분해하여 제조한 액상 천연고무를 사용하여 타이어 제조시 공정성을 개선하고 경제적인 고경도 고무조성물에 관한 것이다.The present invention relates to a high hardness rubber composition using liquid natural rubber, and more particularly, to tire production using liquid natural rubber prepared by pyrolyzing natural rubber having the same molecular structure as synthetic isoprene rubber instead of expensive synthetic isoprene rubber. The present invention relates to a high hardness rubber composition that improves fairness and economics.
본 발명은 천연고무 70∼95 중량부에 액상 천연고무 5∼30 중량부를 첨가한 원료고무 100 중량부에 대하여 펩타이저 0∼1 중량부, 카본블랙 40∼80 중량부, 스테아린산 1∼5 중량부, 보강성 레진으로 듀레즈(Durez 31802)를 10∼20 중량부 및 통상적으로 타이어 제조시에 사용하는 노화방지제 1∼5 중량부, 점착제 1∼5 중량부, 오일 1∼10 중량부, 접착제 1∼5 중량부, 가류촉진제 1∼2 중량부, 유황 1∼5 중량부, 가류지연제 0.1∼1 중량부 사용하여 고경도 고무를 제조한다.The present invention is 0 to 1 parts by weight of peptizer, 40 to 80 parts by weight of carbon black, 1 to 5 parts by weight of stearic acid based on 100 parts by weight of raw material rubber having 5 to 30 parts by weight of liquid natural rubber added to 70 to 95 parts by weight of natural rubber. 10 to 20 parts by weight of Durez 31802 as a reinforcing resin, and 1 to 5 parts by weight of an anti-aging agent usually used in tire production, 1 to 5 parts by weight of adhesive, 1 to 10 parts by weight of oil, adhesive 1 to 5 parts by weight of vulcanization accelerator, 1 to 2 parts by weight of vulcanization accelerator, 1 to 5 parts by weight of sulfur, and 0.1 to 1 parts by weight of vulcanization retardant are used to produce high hardness rubber.
본 발명의 고경도 고무조성물은 고경도를 요하는 타이어와 림의 장착부위인 에이팩스(Apex)에 사용함을 목적으로 한다.The high hardness rubber composition of the present invention is intended to be used in Apex, which is a mounting portion of a tire and a rim that requires high hardness.
Description
본 발명은 액상 천연고무를 이용한 고경도 고무조성물에 관한 것으로서 보다 상세하게는 고가인 합성 이소프렌 고무 대신에 합성 이소프렌 고무와 분자구조가 동일한 천연고무를 열분해하여 제조한 액상 천연고무를 이용하는 고경도 고무조성물에 관한 것이다.The present invention relates to a high hardness rubber composition using liquid natural rubber, and more particularly to a high hardness rubber composition using liquid natural rubber prepared by pyrolyzing natural rubber having the same molecular structure as synthetic isoprene rubber instead of expensive synthetic isoprene rubber. It is about.
타이어 부위중에서 림의 장착부위인 에이팩스(Apex)는 고경도를 요하고 있는데 이러한 고경도 고무조성물은 높은 점도 때문에 타이어 제조시 공정성이 좋지 않으며 이러한 단점을 해결하기 위해 타이어 공정상 점도를 낮추고 가류후 타이어 물성에 영향을 주지 않는 첨가물을 이용하고 있다.Among the tire parts, Apex, the mounting part of the rim, requires high hardness. Such high hardness rubber composition has a high viscosity, which leads to poor processability when manufacturing tires. Additives that do not affect tire properties are used.
현재 에이팩스에 사용되는 고무조성물로서 상기와 같은 단점을 해결하기 위해 가류후 타이어 물성에 영향을 주지 않는 첨가물로 합성 이소프렌 고무를 사용하고 있으나 이는 아주 고가의 재료에 해당한다.Currently, synthetic isoprene rubber is used as an additive that does not affect tire properties after vulcanization as a rubber composition used in Apex, but this is a very expensive material.
본 발명은 고경도 고무조성물에 있어서, 고가인 합성 이소프렌 고무 대신에 합성 이소프렌 고무와 분자구조는 같으나 곁사슬이 발달하여 분자량이 큰 천연고무를 열분해하여 제조한 액상 천연고무를 적용하여 보다 경제적이고 생산적인 고경도 고무를 제조하는 것을 목적으로 한다.The present invention, in the high hardness rubber composition, instead of the expensive synthetic isoprene rubber, the synthetic isoprene rubber has the same molecular structure but the side chain is developed by applying a liquid natural rubber prepared by pyrolyzing a natural rubber having a high molecular weight, more economical and productive It aims at manufacturing high hardness rubber.
본 발명은 고경도 고무조성물에 있어서 천연고무 70∼95 중량부에 액상 천연고무 5∼30 중량부를 첨가한 원료고무 100 중량부에 대하여 펩타이저(peptizer) 0∼1 중량부, 카본블랙 40∼80 중량부, 스테아린산 1∼5 중량부, 보강성 레진으로 듀레즈(Durez 31802, 코오롱제품) 10∼20 중량부 및 통상적으로 타이어 제조시에 사용하는 노화방지제 1∼5 중량부, 점착제 1∼5 중량부, 오일 1∼10 중량부, 접착제 1∼5 중량부, 가류촉진제 1∼2 중량부, 유황 1∼5 중량부, 가류지연제 0.1∼1 중량부를 사용하여 타이어와 림의 장착부위인 에이팩스에 적합한 고경도 고무를 밴부리 혼합기(banbury mixer)에서 배합한다.The present invention is 0 to 1 part by weight of a peptizer, 40 to 40 carbon black based on 100 parts by weight of raw rubber having 5 to 30 parts by weight of liquid natural rubber added to 70 to 95 parts by weight of natural rubber in a high hardness rubber composition. 80 parts by weight, 1 to 5 parts by weight of stearic acid, 10 to 20 parts by weight of Durez (Durez 31802, Kolon) as a reinforcing resin, and 1 to 5 parts by weight of the anti-aging agent used in the manufacture of tires, 1 to 5 By weight, 1 to 10 parts by weight of oil, 1 to 5 parts by weight of adhesive, 1 to 2 parts by weight of vulcanization accelerator, 1 to 5 parts by weight of sulfur, 0.1 to 1 parts by weight of vulcanization retardant, A-pack Hard rubbers suitable for use in gas are blended in a banbury mixer.
이하 본 발명을 다음의 실시예, 비교예 및 시험예에 의하여 설명하고자 한다. 그러나 이들에 의해 본 발명의 기술적 범위가 한정되는 것은 아니다.Hereinafter, the present invention will be described by the following examples, comparative examples and test examples. However, the technical scope of the present invention is not limited by these.
< 실시예 1 ><Example 1>
천연고무 80 중량부, 합성 이소프렌 고무 20 중량부, 펩타이저(Renacit-Ⅳ,Bayer) 0.1 중량부, 카본블랙 65 중량부, 스테아린산 2.5 중량부, 산화아연(ZnO) 7 중량부, 레진으로 듀레즈(Durez 31802, 코오롱제품)를 15 중량부 및 타이어 제조에 통상적으로 사용하는 노화방지제 2 중량부, 점착제 4 중량부, 공정오일 5 중량부, 접착제 3.6 중량부, 가류촉진제 1.5 중량부, 유황 3.75 중량부, 가류지연제 0.4 중량부을 사용하여 타이어 림의 장착부위인 에이팩스에 적합한 고경도 고무를 밴부리 믹서에서 배합한다. 아래의 표 1에 고무조성물의 사용량을 다시 정리하였다.80 parts by weight of natural rubber, 20 parts by weight of synthetic isoprene rubber, 0.1 part by weight of peptizer (Renacit-IV, Bayer), 65 parts by weight of carbon black, 2.5 parts by weight of stearic acid, 7 parts by weight of zinc oxide (ZnO), dewo resin 15 parts by weight of reds (Durez 31802, Kolon) and 2 parts by weight of anti-aging agent, 4 parts by weight of adhesive, 5 parts by weight of process oil, 3.6 parts by weight of adhesive, 1.5 parts by weight of vulcanization accelerator, sulfur 3.75 By weight, 0.4 parts by weight of vulcanization retardant is used to blend a hard rubber suitable for Apex, the mounting part of the tire rim, in a Banburi mixer. Table 1 below summarizes the usage of the rubber composition.
< 실시예 2 ><Example 2>
실시예 1의 합성 이소프렌 고무 대신 액상 천연고무 20 중량부 사용하는 것을 제외하고는 실시예 1과 같은 방법으로 고경도 고무를 배합한다.High hardness rubber is blended in the same manner as in Example 1 except that 20 parts by weight of liquid natural rubber is used instead of the synthetic isoprene rubber of Example 1.
< 실시예 3 ><Example 3>
실시예 1의 고무 조성물에서 합성 이소프렌 고무를 제외하고 그 외에는 실시예 1과 같은 조성물 및 방법으로 고경도 고무를 배합한다.In the rubber composition of Example 1, except for the synthetic isoprene rubber, the high hardness rubber is blended in the same composition and method as in Example 1.
표 1. 본 발명의 고무조성물 및 사용량 (단위: 중량부)Table 1. Rubber composition and amount of use of the present invention (unit: parts by weight)
< 시험예 ><Test Example>
상기 실시예 1∼3에서 제조한 고무의 가황특성 및 점도, 스코치(Scorch) 타임, 인장시험, 노화후 인장시험, 내크랙특성, 내피로특성 및 발열과 같은 물성을 측정하였으며 이의 결과를 아래의 표 2에 정리하여 나타내었다.The physical properties such as vulcanization and viscosity, scorch time, tensile test, tensile test after aging, crack resistance, fatigue resistance, and heat generation of the rubbers prepared in Examples 1 to 3 were measured. Table 2 summarizes them.
표 2. 가황특성 및 물성시험 결과Table 2. Vulcanization Characteristics and Property Test Results
* 노화조건은 105℃ 열 챔버(chamber)에서 24시간 동안 방치* Aging condition is left for 24 hours in 105 ℃ heat chamber
상기의 표 2의 결과와 같이 합성 이소프렌 고무를 대신하여 액상 천연고무를 사용한 고무는 합성 이소프렌 고무나 액상 천연고무를 사용하지 않은 고무에 비하여 점도가 낮아 타이어 공정상에 잇점이 있을 뿐만 아니라 내크랙특성 및 내피로특성도 향상되었으며, 가류후의 물성 또한 합성 이소프렌을 사용한 고무와 별다른 차이를 나타내지 않음을 알 수 있다.As a result of Table 2, rubber using liquid natural rubber in place of synthetic isoprene rubber has a lower viscosity than rubber without using synthetic isoprene rubber or liquid natural rubber, and thus has advantages in tire processing as well as crack resistance. And fatigue resistance was also improved, it can be seen that the physical properties after vulcanization also shows no difference from the rubber using synthetic isoprene.
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| KR1019990017394A KR100308879B1 (en) | 1999-05-14 | 1999-05-14 | Highly Hardness Rubber Composition Using Liquid Natural Rubber |
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| KR100308879B1 true KR100308879B1 (en) | 2001-09-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100380761B1 (en) * | 2000-06-22 | 2003-04-18 | 한국타이어 주식회사 | Rubber composition for bead insulation |
| KR101240692B1 (en) * | 2011-01-10 | 2013-03-07 | 김종수 | Method for reclaiming used-up rubber of latex |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020084991A (en) * | 2001-05-03 | 2002-11-16 | 금호산업 주식회사 | Apex rubber composition for radial tire |
| KR20030062174A (en) * | 2002-01-16 | 2003-07-23 | 엘지전선 주식회사 | Highly durable rubber compounds |
| KR20180033022A (en) * | 2016-09-23 | 2018-04-02 | 주식회사 삼오테크 | Rubber composition for recapped tires |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990015896A (en) * | 1997-08-12 | 1999-03-05 | 홍건희 | Ultra-hardness rubber composition with improved mixing processability |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990015896A (en) * | 1997-08-12 | 1999-03-05 | 홍건희 | Ultra-hardness rubber composition with improved mixing processability |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100380761B1 (en) * | 2000-06-22 | 2003-04-18 | 한국타이어 주식회사 | Rubber composition for bead insulation |
| KR101240692B1 (en) * | 2011-01-10 | 2013-03-07 | 김종수 | Method for reclaiming used-up rubber of latex |
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| KR20000073839A (en) | 2000-12-05 |
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