CN105008445A - 轮胎气密层配混物 - Google Patents
轮胎气密层配混物 Download PDFInfo
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- CN105008445A CN105008445A CN201480008423.6A CN201480008423A CN105008445A CN 105008445 A CN105008445 A CN 105008445A CN 201480008423 A CN201480008423 A CN 201480008423A CN 105008445 A CN105008445 A CN 105008445A
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- 150000001875 compounds Chemical class 0.000 title abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 34
- 239000006229 carbon black Substances 0.000 claims abstract description 30
- 239000000945 filler Substances 0.000 claims abstract description 10
- 229920001971 elastomer Polymers 0.000 claims abstract description 6
- 229920005555 halobutyl Polymers 0.000 claims abstract description 5
- 229920000642 polymer Polymers 0.000 claims abstract description 5
- 239000012764 mineral filler Substances 0.000 claims abstract description 3
- 238000009472 formulation Methods 0.000 claims description 29
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000004073 vulcanization Methods 0.000 claims description 3
- VHOQXEIFYTTXJU-UHFFFAOYSA-N Isobutylene-isoprene copolymer Chemical group CC(C)=C.CC(=C)C=C VHOQXEIFYTTXJU-UHFFFAOYSA-N 0.000 claims description 2
- 241000872198 Serjania polyphylla Species 0.000 abstract 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 229920005549 butyl rubber Polymers 0.000 abstract 1
- 125000004968 halobutyl group Chemical group 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 235000019241 carbon black Nutrition 0.000 description 17
- 239000007789 gas Substances 0.000 description 6
- 239000004927 clay Substances 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- -1 bromobutyl Chemical group 0.000 description 1
- 229920005557 bromobutyl Polymers 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- RCKMWOKWVGPNJF-UHFFFAOYSA-N diethylcarbamazine Chemical compound CCN(CC)C(=O)N1CCN(C)CC1 RCKMWOKWVGPNJF-UHFFFAOYSA-N 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Classifications
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- 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
-
- 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
- C08K3/34—Silicon-containing compounds
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- 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
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
Landscapes
- 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)
- Dispersion Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
- Sealing Material Composition (AREA)
Abstract
一种轮胎气密层配混物，其具有：至少部分地由丁基橡胶和/或卤代丁基橡胶组成的聚合物基料；填料体系；和硫化体系。填料体系具有60至80phr的硅类层状矿物填料；和8至30phr的由具有21至39m2/g的氮吸附测量的比表面积的第一炭黑和具有70至120m2/g的氮吸附测量的比表面积的第二炭黑组成的炭黑混合物。
Description
技术领域
本发明涉及轮胎气密层配混物。
此处和下文中，‘气密层’意指基本上对空气不可透过、并且用于无内胎轮胎(tubeless tyres)即不具有内胎的轮胎以维持胎体内的空气压力的内部橡胶层。气密层还必须确保氧被有效地保留在胎体内部，并防止氧扩散至轮胎的其它部位并劣化轮胎的其它部位。
术语‘硫化体系’意指能够交联聚合物基料的物质如硫和促进剂。
背景技术
气密层配混物通常具有卤代丁基橡胶基质，其尽管昂贵但提供比其它聚合物基料更好的不透气性。
改进气密层的不透气性的一种方法是使其变厚。然而，任何本领域技术人员已知，气密层越厚，生产越昂贵，并增加轮胎的重量，从而增加整个车辆的燃料消费和滚动阻力。
因此存在对越来越薄、但不损害不透气性的气密层的需求。
增加气密层的不透气性而不使它们更厚的一种方法是使用具有特殊填料的配混物，所述填料，如果适当混合，产生能够显著改进气密层的不透气性的立体位阻。换言之，当与聚合物基料混合时，如粘土、高岭土、云母等填料在最终产物中形成防止空气透过产物的障碍并因此改进其不透气性。在这一点上，重要的是要注意，填料的任何各向异性可能加强橡胶的不透气性特性。
然而，这种解决方案在改进气密层的不透气性的同时，可导致其物理特性如耐裂纹性(特别是在低温下)和耐裂纹扩展性的损害。
发明内容
本申请人发明了能够改进气密层的氧不透气性性质而不损害上述物理特性的可选择的解决方案。就此而言，对于一定程度的不透气性，气密层可制得更薄，具有上述提及的全部制造优点。
根据本发明，提供轮胎气密层配混物，其包括至少部分地由丁基橡胶和/或卤代丁基橡胶组成的聚合物基料、填料体系、和硫化体系；所述配混物的特征在于所述填料体系包括60至80phr的硅类层状矿物填料和8至30phr的炭黑混合物，所述炭黑混合物包括具有21至39m2/g的氮吸附测量的比表面积(N2SA)的第一炭黑和具有70至120m2/g的氮吸附测量的比表面积(N2SA)的第二炭黑。
根据ASTM Standard D6556通过氮吸附测量比表面积范围。
优选地，配混物包括5至25phr的各所述第一炭黑和所述第二炭黑。
优选地，所述第一炭黑和所述第二炭黑的量的比在1和4之间、更优选在1和2之间的范围内。
具体实施方式
根据本发明，还提供由如上所述限定的配混物制成的气密层，和包括此类气密层的轮胎。
以下仅为非限制性实施例以更清楚地理解本发明。
实施例
生产六种对照配混物(A-F)和两种根据本发明的配混物(G，H)。
如下所述，对照配混物用于说明如上所述的两种炭黑的混合物如何判定根据本发明的配混物的优点。更具体地，配混物A为通常使用的气密层配混物；配混物B和C通过包括不同的炭黑混合物而不同于本发明的配混物；配混物D和E通过仅包括一种炭黑而不同于本发明的配混物；和配混物F通过包括不同量的粘土而不同于本发明的配混物。
表I示出上述对照配混物以phr计的组成。
表I
卤代丁基橡胶为溴代丁基橡胶。
所用的高岭土在商品名POLYFIL DL下由CAMIN销售。
炭黑N660具有34m2/g的比表面积。
炭黑N330具有78.6m2/g的比表面积。
炭黑N134具有131m2/g的比表面积。
表II示出根据本发明的配混物以phr计的组成，其根据粘土的使用量而彼此不同。
表II
由表I和表II中的各配混物制成已硫化橡胶样本，其特性相当于可由配混物获得的气密层的那些。
对样本的氧不透气性、耐低温裂纹形成性、和耐裂纹扩展性进行试验。
氧不透气性试验在0.7mm厚样本上使用常规设备如(型号2/61)进行。并且在25℃的温度下进行测量。
根据ETM标准135在-40℃的温度下进行耐低温裂纹形成性试验。
根据ETM标准119在25℃的温度下进行耐裂纹扩展性试验。
表III和表IV示出上述试验的结果，所述结果以配混物A的那些为指标。为了对表III和表IV中的结果更清楚的理解，所示值越低，各特性越好。
表III
| A | B | C | D | E | F | |
| 透气性 | 100 | 86 | 60 | 68 | 77 | 82 |
| 低温裂纹形成 | 100 | 120 | 145 | 128 | 110 | 120 |
| 裂纹扩展 | 100 | 138 | 155 | 138 | 105 | 115 |
表IV
| G | H | |
| 透气性 | 65 | 50 |
| 低温裂纹形成 | 112 | 118 |
| 裂纹扩展 | 110 | 110 |
表III和表IV中结果的对比清楚地显示，仅有根据本发明的配混物如何成功实现高度的不透气性而不损害与耐裂纹形成性和耐裂纹扩展性相关的物理特性。
重要的是，要注意，将粘土与炭黑混合物而不是所述的一种或所述混合物中的仅一种炭黑的组合是如何无法实现寻求的优点。实际上，无论何时对照配混物显示不透气性的改进，其还示出耐裂纹形成性和耐裂纹扩展性的劣化，反之亦然。
此外，如对照配混物F所示，为了实现寻求的优点，仅将粘土与所述炭黑混合物组合是不够的，还需要采用本发明的中限定的量。
Claims (6)
1.一种轮胎气密层配混物，其包括至少部分地由丁基橡胶和/或卤代丁基橡胶组成的聚合物基料、填料体系、和硫化体系；所述配混物的特征在于，所述填料体系包括60至80phr的硅类层状矿物填料和8至30phr的炭黑混合物，所述炭黑混合物包括具有21至39m2/g的氮吸附测量的比表面积(N2SA)的第一炭黑和具有70至120m2/g的氮吸附测量的比表面积(N2SA)的第二炭黑。
2.根据权利要求1所述的配混物，其特征在于包括5至25phr的各所述第一炭黑和所述第二炭黑。
3.根据权利要求1所述的配混物，其特征在于所述第一炭黑和所述第二炭黑的量的比在1和4之间的范围内。
4.根据权利要求1所述的配混物，其特征在于所述第一炭黑和所述第二炭黑的量的比在1和2之间的范围内。
5.一种轮胎气密层，其特征在于由根据前述权利要求任一项所述的配混物制成。
6.一种轮胎，其特征在于包括根据权利要求5所述的气密层。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000074A ITRM20130074A1 (it) | 2013-02-11 | 2013-02-11 | Mescola di innerliner per pneumatici |
| ITRM2013A000074 | 2013-02-11 | ||
| PCT/IB2014/058923 WO2014122636A1 (en) | 2013-02-11 | 2014-02-11 | Tyre innerliner compound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105008445A true CN105008445A (zh) | 2015-10-28 |
| CN105008445B CN105008445B (zh) | 2017-05-03 |
Family
ID=47953612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480008423.6A Active CN105008445B (zh) | 2013-02-11 | 2014-02-11 | 轮胎气密层配混物 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20150368451A1 (zh) |
| EP (1) | EP2954002B1 (zh) |
| JP (1) | JP6342921B2 (zh) |
| CN (1) | CN105008445B (zh) |
| BR (1) | BR112015019153A2 (zh) |
| IT (1) | ITRM20130074A1 (zh) |
| RU (1) | RU2649434C2 (zh) |
| WO (1) | WO2014122636A1 (zh) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160257167A1 (en) | 2013-10-17 | 2016-09-08 | Bridgestone Americas Tire Operations, Llc | Tire Innerliner With Carbon Black Blend |
| DE102016200950A1 (de) | 2016-01-25 | 2017-07-27 | Continental Reifen Deutschland Gmbh | Kautschukmischung für die Innenschicht oder den Schlauch von Fahrzeugluftreifen und Fahrzeugluftreifen |
| JP6959122B2 (ja) * | 2017-12-05 | 2021-11-02 | 株式会社ブリヂストン | タイヤ及びタイヤの製造方法 |
| JP6958838B2 (ja) * | 2017-12-08 | 2021-11-02 | 株式会社ブリヂストン | ゴム組成物、インナーライナーゴム、及びタイヤ |
| FR3083542A1 (fr) * | 2018-07-06 | 2020-01-10 | Compagnie Generale Des Etablissements Michelin | Gomme interieure incluant du noir de carbone et du kaolin |
| IT201900008361A1 (it) * | 2019-06-07 | 2020-12-07 | Bridgestone Europe Nv Sa | Mescola ad elevata impermeabilita' per body ply skim e/o innerliner |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1707025A1 (ru) * | 1989-08-22 | 1992-01-23 | Научно-исследовательский институт крупногабаритных шин | Резинова смесь дл герметизирующего сло |
| UA16113A1 (uk) * | 1989-08-22 | 1997-08-29 | Науково-Дослідний Інститут Великогабаритних Шин | Гумова суміш для герметизуючого шару |
| US5294253A (en) * | 1992-11-06 | 1994-03-15 | Hydril Company | Carbon black system and improved rubber stock |
| US5430087A (en) * | 1993-09-02 | 1995-07-04 | Hydril Company | Carbon black pair with different particle size and improved rubber stock |
| JPH06212024A (ja) * | 1993-01-14 | 1994-08-02 | Toyo Tire & Rubber Co Ltd | ゴム組成物 |
| US5426147A (en) * | 1994-05-03 | 1995-06-20 | Cabot Corporation | Low permeability rubber compositions |
| CA2198663A1 (en) * | 1996-06-21 | 1997-12-22 | Richard Robinson Smith | Silica-filled rubber composition containing two different carbon blacks and tire with tread made therefrom |
| US5798405A (en) * | 1997-03-20 | 1998-08-25 | The Goodyear Tire & Rubber Company | Tire with tread of rubber composition containing two different carbon blacks |
| ES2295135T3 (es) * | 2000-02-28 | 2008-04-16 | Bridgestone Corporation | Composicion de caucho para revestimiento interno. |
| US7337815B2 (en) * | 2004-01-20 | 2008-03-04 | The Goodyear Tire & Rubber Company | Tire with tread of rubber composition containing diverse carbon blacks |
| JP4750470B2 (ja) * | 2005-05-25 | 2011-08-17 | 住友ゴム工業株式会社 | インナーライナー用ゴム組成物 |
| US7514491B2 (en) * | 2005-07-18 | 2009-04-07 | Exxonmobil Chemical Patents Inc. | Functionalized isobutylene polymer-inorganic clay nanocomposites and organic-aqueous emulsion process |
| JP2008111083A (ja) * | 2006-10-31 | 2008-05-15 | Yokohama Rubber Co Ltd:The | ゴム組成物及びそれをインナーライナーとして用いた空気入りタイヤ |
| JP2008266517A (ja) * | 2007-04-24 | 2008-11-06 | Yokohama Rubber Co Ltd:The | タイヤインナーライナー用ゴム組成物 |
| JP4467627B2 (ja) * | 2007-10-18 | 2010-05-26 | 住友ゴム工業株式会社 | タイヤ |
| JP5044381B2 (ja) * | 2007-12-07 | 2012-10-10 | 住友ゴム工業株式会社 | インナーライナー用ゴム組成物およびそれを用いたインナーライナーを有するタイヤ |
| FR2925062B1 (fr) * | 2007-12-18 | 2011-03-04 | Michelin Soc Tech | Composition de caoutchouc notamment pour la fabrication de pneumatique |
| JP2010013543A (ja) * | 2008-07-03 | 2010-01-21 | Yokohama Rubber Co Ltd:The | タイヤインナーライナー用ゴム組成物およびそれを用いた空気入りタイヤ |
| JP5147788B2 (ja) * | 2008-08-12 | 2013-02-20 | 住友ゴム工業株式会社 | ゴム組成物の製造方法およびそれにより得られたゴム組成物、ならびに該ゴム組成物を用いたタイヤ |
-
2013
- 2013-02-11 IT IT000074A patent/ITRM20130074A1/it unknown
-
2014
- 2014-02-11 CN CN201480008423.6A patent/CN105008445B/zh active Active
- 2014-02-11 US US14/765,868 patent/US20150368451A1/en not_active Abandoned
- 2014-02-11 WO PCT/IB2014/058923 patent/WO2014122636A1/en active Application Filing
- 2014-02-11 EP EP14714338.2A patent/EP2954002B1/en not_active Not-in-force
- 2014-02-11 BR BR112015019153A patent/BR112015019153A2/pt active Search and Examination
- 2014-02-11 JP JP2015556611A patent/JP6342921B2/ja active Active
- 2014-02-11 RU RU2015138731A patent/RU2649434C2/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| ITRM20130074A1 (it) | 2014-08-12 |
| US20150368451A1 (en) | 2015-12-24 |
| JP2016511783A (ja) | 2016-04-21 |
| CN105008445B (zh) | 2017-05-03 |
| WO2014122636A1 (en) | 2014-08-14 |
| RU2015138731A (ru) | 2017-03-16 |
| RU2649434C2 (ru) | 2018-04-03 |
| WO2014122636A8 (en) | 2015-01-08 |
| EP2954002B1 (en) | 2016-11-02 |
| BR112015019153A2 (pt) | 2017-07-18 |
| EP2954002A1 (en) | 2015-12-16 |
| JP6342921B2 (ja) | 2018-06-13 |
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