WO2011018887A1 - ハードカーボンブラック及びゴム組成物 - Google Patents

ハードカーボンブラック及びゴム組成物 Download PDF

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Publication number
WO2011018887A1
WO2011018887A1 PCT/JP2010/004898 JP2010004898W WO2011018887A1 WO 2011018887 A1 WO2011018887 A1 WO 2011018887A1 JP 2010004898 W JP2010004898 W JP 2010004898W WO 2011018887 A1 WO2011018887 A1 WO 2011018887A1
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WO
WIPO (PCT)
Prior art keywords
carbon black
aggregate
hard carbon
area
dbp
Prior art date
Application number
PCT/JP2010/004898
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English (en)
French (fr)
Japanese (ja)
Inventor
正樹 栗原
康信 ▲桑▼田
剛司 鈴木
恭兵 秦
Original Assignee
新日化カーボン株式会社
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.)
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Publication date
Application filed by 新日化カーボン株式会社 filed Critical 新日化カーボン株式会社
Priority to JP2011526684A priority Critical patent/JPWO2011018887A1/ja
Priority to IN784DEN2012 priority patent/IN2012DN00784A/en
Priority to CN201080031800XA priority patent/CN102471608A/zh
Publication of WO2011018887A1 publication Critical patent/WO2011018887A1/ja

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/44—Carbon
    • C09C1/48—Carbon black
    • 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
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/19—Oil-absorption capacity, e.g. DBP values

Definitions

  • the present invention relates to hard carbon black having an excellent balance between wear resistance and low heat build-up.
  • carbon black for rubber compounding There are various types of carbon black for rubber compounding depending on the application and purpose, and the carbon black is classified according to various characteristics such as specific surface area and aggregate. Of these, carbon black for tire treads is required to achieve high wear resistance and low fuel consumption. Of the two required characteristics, the latter low fuel consumption is evaluated as low heat generation. As a carbon black for satisfying these required performances, for example, a high aggregate is effective, and a specific surface area is large to improve wear resistance, while on the other hand, to improve fuel efficiency. It is effective that the specific surface area is small. In other words, the balance between high wear resistance and low fuel consumption is a contradictory proposition.
  • Carbon black and a rubber composition containing the carbon black are desired.
  • the problem to be solved is that a hard carbon black having a very excellent low heat generation property while maintaining a high level of wear resistance has not yet been obtained.
  • the present inventors have found that the envelope area and projected area of the aggregate The present inventors have found that fuel consumption can be reduced when the index calculated from the above is lower than the value calculated from the DBP absorption amount.
  • the hard carbon black according to the present invention preferably further has a selective property of the following formula (3). 1.55 ⁇ D75 / D25 ⁇ 2.0 (3)
  • D75 is the 75% frequency value of the aggregate measured by centrifugal sedimentation
  • D25 is the 25% frequency value.
  • the hard carbon black according to the present invention is preferably characterized by having a CTAB adsorption specific surface area of 55 to 150 m 2 / g and a DBP absorption of 100 to 150 ml / 100 g.
  • the rubber composition according to the present invention is characterized in that 20 to 100 parts by mass of the above hard carbon black is blended with 100 parts by mass of rubber.
  • the hard carbon black according to the present invention has the selective property of the following formula (1), it can exhibit a very excellent low heat generation property while maintaining a high level of wear resistance. For this reason, it can be used suitably for applications such as compounded rubber for tire treads for passenger cars, which require a high level of wear resistance and very low fuel consumption.
  • CA is an index obtained by image analysis of a two-dimensional projection image of an aggregate by a transmission electron microscope, and is calculated by the following formula (2) from the envelope area and the projection area of the aggregate, and DBP is the DBP absorption amount.
  • the rubber composition according to the present invention uses the above-mentioned hard carbon black, it is suitable as a tire tread for passenger cars that requires a high level of wear resistance and a very excellent fuel economy.
  • FIG. 1 is a diagram schematically showing the relationship between the envelope area and the projected area in equation (2).
  • FIG. 2 is a graph showing the relationship between tan ⁇ (60 ° C.) and lambone 25% wear for the rubber compositions of Examples, Comparative Examples, and Reference Examples.
  • the hard carbon black according to the present embodiment has a selective characteristic of the following formula (1), that is, satisfies the condition of the formula (1).
  • CA is an index obtained by image analysis of a two-dimensional projection image of an aggregate by a transmission electron microscope, and is calculated by the following formula (2) from the envelope area and the projection area of the aggregate, and DBP is the DBP absorption amount. .
  • the hard carbon black according to the present embodiment is not limited in its production method, and is produced by a production method such as a thermal method that is a thermal decomposition method, an acetylene decomposition method, or a contact method that is an incomplete combustion method. However, it is more preferable that it is manufactured by a furnace method such as a gas furnace method or an oil furnace method.
  • the DBP absorption amount which is the variable on the right side of the above equation (1), is a factor that indicates the rubber occlusion capacity of carbon black when carbon black is blended with rubber, and the void volume inside the aggregate and the void between the aggregates. It is considered the sum of volume. The higher the DBP absorption, the greater the total void volume, and the easier it is to occlude rubber molecules.
  • the hard carbon black according to the present embodiment can satisfy the relationship of the formula (1), and can exhibit a very excellent low heat generation property while maintaining a high level of wear resistance. In other words, it has an excellent balance between wear resistance and low heat generation. For this reason, it can be suitably used for applications such as compound tires for vehicle tire treads, particularly passenger vehicle tire treads, which require a high level of wear resistance and excellent fuel efficiency.
  • the hard carbon black according to the present embodiment further has a selective characteristic represented by the following formula (3). 1.55 ⁇ D75 / D25 ⁇ 2.0 (3)
  • D75 is a 75% frequency value of the aggregate measured by the centrifugal sedimentation method
  • D25 is a 25% frequency value.
  • D75 / D25 is an index indicating the aggregate diameter distribution. The smaller the value, the sharper the aggregate diameter distribution, and the larger the value, the broader.
  • the hard carbon black according to the present embodiment satisfies the above formula (3), so that the balance between wear resistance and low heat build-up is more excellent.
  • D75 and D25 are measured in accordance with JIS K6217-6 “Carbon black for rubber—Basic characteristics—Part 6: Determination of aggregate distribution by disc centrifugal light precipitation method”.
  • the hard carbon black according to the present embodiment preferably has a CTAB adsorption specific surface area of 55 to 150 m 2 / g and a DBP absorption of 100 to 150 ml / 100 g.
  • the CTAB adsorption specific surface area is measured according to JIS K6217-3 “Carbon black for rubber—Basic characteristics—Part 3: Determination of specific surface area—CTAB adsorption method”.
  • the hard carbon black according to the present embodiment described above is continuously connected coaxially to a combustion chamber having an air inlet for supplying combustion air from the periphery of a fuel burner mounted in the axial direction of the furnace, for example.
  • a combustion chamber having an air inlet for supplying combustion air from the periphery of a fuel burner mounted in the axial direction of the furnace, for example.
  • an oil furnace furnace with two or three stages of narrow- and small-diameter reaction chambers with a raw material supply port, combustion of raw material supply location and supply volume, fuel oil and air, oxygen gas or a mixture thereof It can be manufactured by adjusting the supply amount of the working gas, the reaction stop time, and the like.
  • an oil furnace furnace consisting of two or three stages of narrow-diameter reaction chambers and wide-diameter reaction chambers, there are contracted and expanded flows of high-temperature and high-speed combustion gas due to the step shape.
  • the aggregate shape is determined by the collision frequency, collision strength, and collision direction of the carbon black particles. Therefore, to control the aggregate shape, the reaction point must be controlled in consideration of the contraction or expansion of the oil furnace. I must.
  • the hard carbon black considering the contracted flow and the expanded flow of the combustion gas due to the step shape, it is appropriately composed of the raw material supply location, supply amount, fuel amount, oxygen gas or a mixture thereof. It is effective to adjust the supply amount of combustion gas, reaction stop time, and the like. In particular, it is desirable to supply the raw material by dividing it into a narrow-diameter reaction chamber and a wide-diameter reaction chamber located upstream thereof.
  • the rubber used in the rubber composition is, for example, a diene synthetic rubber such as polybutadiene rubber, styrene butadiene rubber, isoprene rubber, or butyl rubber, natural rubber, or one or more of the diene synthetic rubber and natural rubber.
  • a diene synthetic rubber such as polybutadiene rubber, styrene butadiene rubber, isoprene rubber, or butyl rubber, natural rubber, or one or more of the diene synthetic rubber and natural rubber.
  • carbon black having the above characteristics and vulcanizing agent, vulcanization accelerator, vulcanization accelerator, vulcanization acceleration aid, anti-aging agent, softener, plasticizer and other necessary components are kneaded and vulcanized. .
  • the rubber composition according to the present embodiment can exhibit a very excellent low heat generation property while maintaining a high level of wear resistance. In other words, it has an excellent balance between wear resistance and low heat generation. For this reason, it can be used suitably for applications such as compounded rubber for tire treads for passenger cars, which require a high level of wear resistance and very low fuel consumption.
  • Examples 1 to 3 that satisfy the conditions defined in the present invention all have a very excellent fuel efficiency while maintaining a high level of wear resistance. Recognize.
  • Comparative Examples 1 to 5 that do not satisfy the conditions defined in the present invention are not as balanced in wear resistance and fuel consumption characteristics as the examples.
  • the CA is larger than (0.35 ⁇ DBP + 2), so that the fuel efficiency characteristics are not sufficiently improved as compared with Examples 1 and 2.
  • D75 / D25 is less than 1.55, so that the fuel efficiency is insufficient as compared with Example 2.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Tires In General (AREA)
PCT/JP2010/004898 2009-08-12 2010-08-04 ハードカーボンブラック及びゴム組成物 WO2011018887A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2011526684A JPWO2011018887A1 (ja) 2009-08-12 2010-08-04 ハードカーボンブラック及びゴム組成物
IN784DEN2012 IN2012DN00784A (enrdf_load_stackoverflow) 2009-08-12 2010-08-04
CN201080031800XA CN102471608A (zh) 2009-08-12 2010-08-04 硬质炭黑及橡胶组合物

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-187000 2009-08-12
JP2009187000 2009-08-12

Publications (1)

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WO2011018887A1 true WO2011018887A1 (ja) 2011-02-17

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JP (1) JPWO2011018887A1 (enrdf_load_stackoverflow)
CN (1) CN102471608A (enrdf_load_stackoverflow)
IN (1) IN2012DN00784A (enrdf_load_stackoverflow)
WO (1) WO2011018887A1 (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013023538A (ja) * 2011-07-19 2013-02-04 Yokohama Rubber Co Ltd:The タイヤ用ゴム組成物
JP2017525825A (ja) * 2014-08-29 2017-09-07 オリオン エンジニアード カーボンズ ゲゼルシャフト ミット ベシュレンクテル ハフツング カーボンブラックの空隙率（Ｐｏｒｏｓｉｔｙ）を制御するプロセス
WO2019130803A1 (ja) * 2017-12-26 2019-07-04 Ｔｏｙｏ Ｔｉｒｅ株式会社 ゴム組成物および空気入りタイヤ、ならびにゴムウエットマスターバッチの製造方法およびゴム組成物の製造方法
JP2019112586A (ja) * 2017-12-26 2019-07-11 Ｔｏｙｏ Ｔｉｒｅ株式会社 ゴムウエットマスターバッチの製造方法、およびゴム組成物の製造方法
JP2019112585A (ja) * 2017-12-26 2019-07-11 Ｔｏｙｏ Ｔｉｒｅ株式会社 ゴム組成物および空気入りタイヤ

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103408973A (zh) * 2013-08-22 2013-11-27 龙星化工股份有限公司 一种低生热超耐磨炭黑及其生产工艺
CN108961335A (zh) * 2018-07-11 2018-12-07 四川理工学院 一种橡胶中炭黑聚集体间距的测量方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04370126A (ja) * 1991-06-17 1992-12-22 Tokai Carbon Co Ltd ゴム組成物
JPH06256576A (ja) * 1993-03-04 1994-09-13 Tokai Carbon Co Ltd ゴム組成物
JPH08169983A (ja) * 1994-12-16 1996-07-02 Tokai Carbon Co Ltd タイヤトレッド用ゴム組成物
JPH1036704A (ja) * 1996-07-22 1998-02-10 Nippon Steel Chem Co Ltd カーボンブラック及びゴム組成物
JP2003096332A (ja) * 2001-09-27 2003-04-03 Tokai Carbon Co Ltd ハード系カーボンブラック

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06256580A (ja) * 1993-03-08 1994-09-13 Tokai Carbon Co Ltd ゴム組成物
JP3585017B2 (ja) * 1997-04-14 2004-11-04 株式会社ブリヂストン ゴム組成物及びそれを用いた空気入りタイヤ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04370126A (ja) * 1991-06-17 1992-12-22 Tokai Carbon Co Ltd ゴム組成物
JPH06256576A (ja) * 1993-03-04 1994-09-13 Tokai Carbon Co Ltd ゴム組成物
JPH08169983A (ja) * 1994-12-16 1996-07-02 Tokai Carbon Co Ltd タイヤトレッド用ゴム組成物
JPH1036704A (ja) * 1996-07-22 1998-02-10 Nippon Steel Chem Co Ltd カーボンブラック及びゴム組成物
JP2003096332A (ja) * 2001-09-27 2003-04-03 Tokai Carbon Co Ltd ハード系カーボンブラック

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013023538A (ja) * 2011-07-19 2013-02-04 Yokohama Rubber Co Ltd:The タイヤ用ゴム組成物
JP2017525825A (ja) * 2014-08-29 2017-09-07 オリオン エンジニアード カーボンズ ゲゼルシャフト ミット ベシュレンクテル ハフツング カーボンブラックの空隙率（Ｐｏｒｏｓｉｔｙ）を制御するプロセス
JP2020033569A (ja) * 2014-08-29 2020-03-05 オリオン エンジニアード カーボンズ ゲゼルシャフト ミット ベシュレンクテル ハフツング カーボンブラックの空隙率（Ｐｏｒｏｓｉｔｙ）を制御するプロセス
US10907049B2 (en) 2014-08-29 2021-02-02 Orion Engineered Carbons Gmbh Process for controlling the porosity of carbon blacks
JP7000398B2 (ja) 2014-08-29 2022-01-19 オリオン エンジニアード カーボンズ ゲゼルシャフト ミット ベシュレンクテル ハフツング カーボンブラックの空隙率（Ｐｏｒｏｓｉｔｙ）を制御するプロセス
US12071549B2 (en) 2014-08-29 2024-08-27 Orion Engineered Carbons Ip Gmbh & Co. Kg Process for controlling the porosity of carbon blacks
WO2019130803A1 (ja) * 2017-12-26 2019-07-04 Ｔｏｙｏ Ｔｉｒｅ株式会社 ゴム組成物および空気入りタイヤ、ならびにゴムウエットマスターバッチの製造方法およびゴム組成物の製造方法
JP2019112586A (ja) * 2017-12-26 2019-07-11 Ｔｏｙｏ Ｔｉｒｅ株式会社 ゴムウエットマスターバッチの製造方法、およびゴム組成物の製造方法
JP2019112585A (ja) * 2017-12-26 2019-07-11 Ｔｏｙｏ Ｔｉｒｅ株式会社 ゴム組成物および空気入りタイヤ
JP7022582B2 (ja) 2017-12-26 2022-02-18 Ｔｏｙｏ Ｔｉｒｅ株式会社 ゴムウエットマスターバッチの製造方法、およびゴム組成物の製造方法
JP7154008B2 (ja) 2017-12-26 2022-10-17 Ｔｏｙｏ Ｔｉｒｅ株式会社 ゴム組成物および空気入りタイヤ

Also Published As

Publication number Publication date
CN102471608A (zh) 2012-05-23
IN2012DN00784A (enrdf_load_stackoverflow) 2015-06-26
JPWO2011018887A1 (ja) 2013-01-17

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