CN102471608A - Hard carbon black and rubber composition - Google Patents
Hard carbon black and rubber composition Download PDFInfo
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- CN102471608A CN102471608A CN201080031800XA CN201080031800A CN102471608A CN 102471608 A CN102471608 A CN 102471608A CN 201080031800X A CN201080031800X A CN 201080031800XA CN 201080031800 A CN201080031800 A CN 201080031800A CN 102471608 A CN102471608 A CN 102471608A
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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
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- 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
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- 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
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- 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
Abstract
Provided is a hard carbon black that maintains a high degree of abrasion resistance while exhibiting extremely low heat generation. The provided hard carbon black has the selective property given in formula (1). (1) CA < 0.35 DBP + 2 Here, CA is an index derived by analyzing a two-dimensional projection of an aggregate, said projection obtained by a transmission electron microscope, and plugging the envelope area of the aggregate and the projected area into formula (2). DBP is the DBP absorption. (2) CA = (envelope area - projected area) / projected area 100.
Description
Technical field
The present invention relates to wear resistant and the excellent hard(carbon)black of low febrifacient balance.
Background technology
Rubber cooperates the carbon black of usefulness to have multiple carbon black according to its purposes, purpose, classifies according to specific surface area or aggregate various characteristicses such as (ア グ リ ゲ one ト).
Wherein, use carbon black, require to realize the wear resistant and the low fuel consumption property of height for tire tread.Among these two kinds of desired characteristic, latter's low fuel consumption property is estimated with low heat generation.
As the carbon black that is used to satisfy these desired properties, for example, make specific surface area big in order to improve wear resistant simultaneously for high aggregate is effectively, on the other hand, making specific surface area in order to improve low fuel consumption property is effective for a short time.That is, have both the proposition that high abrasion resistance and low fuel consumption property are antinomy.
In order to make wear resistant and low fuel consumption property height balance, be conceived to the sooty multifrequency nature, applied for a lot of patents.
For example; Proposed in specific specific surface area, aggregate scope, stipulated the relation, aggregate disruption index of nitrogen adsorption specific surface area and CTAB adsorption specific surface area, measured the carbon black (with reference to patent documentation 1) of the space cubic capacity of the diameter 25nm～30nm that obtains than tinctorial strength, Δ D50/Dst with through the mercury porosimeter.
In addition, also proposed based on the two-dimensional projection image that obtains through transmission electron microscope the aggregate indexing, in patent documentation 2, having proposed in the nitrogen adsorption specific surface area is 75～100m
2/ g, compression DBP are in the hard class zone of 105～120ml/100g, satisfy little carbon black and the rubber combination (with reference to patent documentation 2) of shape anisotropy that Dst>=0.62De+28.0 concerns between the round conversion mean diameter (De) of the Stokes diameter of aggregate (Dst) and the shadow area of the two-dimensional projection image that obtains through transmission electron microscope being carried out the carbon black aggregate that image analysis obtains.
In addition, proposed a carbon black, the CTAB surface area of 110 ~ 160m
2 / g and the 24M4DBP absorption amount of 90 ~ 140ml/100g within a certain range, a large portion having a circular argument aggregates regularity (λ1) satisfy λ1 ≤ 0.0027 × (24M4DBP) +0.0778 zigzag shape, has an inherent elliptical eccentricity (inherent Elliptical eccentricity) (λ2) satisfy λ2 ≥ -0.000444 × (24M4DBP) Such a high anisotropy +0.750 aggregate (see Patent Document 3).
Yet; Owing to considered the global environment protection in recent years; Saving resource, energy-conservation social desirability are further improved; Particularly increase day by day for the requirement of low fuel consumption tire, expectation makes wear resistant and low fuel consumption property height balance to be the carbon black more than the prior art and to be combined with this sooty rubber combination.
Patent documentation 1: No. 3809230 communiques of Japanese Patent
Patent documentation 2: No. 3461396 communiques of Japanese Patent
Patent documentation 3: TOHKEMY 2000-319539 communique
The problem that needs to solve is, still can not get keeping high-caliber wear resistant fully and has very excellent low febrifacient hard(carbon)black.
Summary of the invention
The inventor is in order to provide the carbon black that has both high-caliber wear resistant and low fuel consumption property as the passenger vehicle tyre tyre surface; The result that aggregate shapes is furtherd investigate finds; When the index of being calculated by the envelope area and the shadow area of aggregate is lower than the value of being calculated by the DBP absorbed dose; Can realize low fuel consumptionization, thereby accomplish the present invention.
That is, hard(carbon)black of the present invention is characterised in that to have the selectivity characrerisitic of following formula (1).
CA＜0.35×DBP+2 (1)
Wherein, CA carries out image analysis to the two-dimensional projection image of the aggregate that obtains through transmission electron microscope, and by the index that the envelope area and the shadow area of aggregate utilize following formula (2) to calculate, DBP is the DBP absorbed dose.
CA=(envelope area-shadow area)/shadow area * 100 (2)
In addition, hard(carbon)black of the present invention is characterised in that preferably further have the selectivity characrerisitic of following formula (3).
1.55＜D75/D25＜2.0 (3)
Wherein, D75 is that D25 is 25% frequency values with 75% frequency values of the aggregate of centrifugal settling method mensuration.
In addition, hard(carbon)black of the present invention is characterised in that preferred CTAB adsorption specific surface area is 55～150m
2/ g, the DBP absorbed dose is 100～150ml/100g.
In addition, hard(carbon)black of the present invention is characterised in that, with respect to rubber 100 mass parts, cooperates the above-mentioned hard(carbon)black of 20～100 mass parts to form.
Hard(carbon)black of the present invention is owing to have the selectivity characrerisitic of following formula (1), thus can keep high-caliber wear resistant, and show very excellent low heat generation simultaneously.In addition, thus applicable to the purposes such as compound rubber of the passenger car that requires high-caliber wear resistant and very excellent low fuel consumption property with tire tread.
CA＜0.35×DBP+2 (1)
Wherein, CA carries out image analysis to the two-dimensional projection image of the aggregate that obtains through transmission electron microscope, and by the index that the envelope area and the shadow area of aggregate utilize following formula (2) to calculate, DBP is the DBP absorbed dose.
CA=(envelope area-shadow area)/shadow area * 100 (2)
In addition, rubber combination of the present invention is owing to use above-mentioned hard(carbon)black, thus be suitable for require high-caliber wear resistant and very the passenger car of the low fuel consumption property of excellence use tire tread.
Description of drawings
Fig. 1 is envelope area and the synoptic diagram of the relation between the shadow area in the formula (2).
The figure that concerns between tan δ (60 ℃) and blue Berne 25% abrasion of Fig. 2 for the rubber combination of expression embodiment, comparative example and reference example.
Embodiment
Below embodiment of the present invention (below be called this embodiment instance) is described.
The hard(carbon)black of this embodiment instance has the selectivity characrerisitic of following formula (1), promptly satisfies the condition of formula (1).
CA＜0.35×DBP+2 (1)
Wherein, CA carries out image analysis to the two-dimensional projection image of the aggregate that obtains through transmission electron microscope, and by the index that the envelope area and the shadow area of aggregate utilize following formula (2) to calculate, DBP is the DBP absorbed dose.
CA=(envelope area-shadow area)/shadow area * 100 (2)
Hard(carbon)black for this embodiment instance; Do not limit its preparation method; Can be the thermal process that is used as thermal decomposition method or acetylene decomposition method, or the hard(carbon)black for preparing as the method for makings such as contact process of incomplete combustion method, but the hard(carbon)black that more preferably prepares with the method for making of oven processes such as coal gas oven process or fuel oil oven process.
Below the technical meaning of above-mentioned (1) is described.
If in rubber, cooperate carbon black, then the rubber molecule of carbon blacksurface utilizes physical adsorption etc. to be adhered to carbon blacksurface, and the polymerization between rubber molecule also interacts, and forms the rubber molecule layer that transport properties of molecules lacks at carbon blacksurface.
This volume that lacks the rubber molecule of mobility increases more, and then mechanicalness such as modulus, wear resistant intensity improves more.On the other hand, think near the rubber molecule of the shortage mobility this carbon blacksurface when distortion because the heating that intermolecular friction causes is high.Therefore, the volume that common sooty specific surface area increases the rubber layer that then lacks transport properties of molecules more increases more, though wear resistant improves, heating is high, and the result damages fuel consumption characteristic.
Sooty rubber when the parameter DBP absorbed dose on the right of following formula (1) is coupled in the rubber for the expression carbon black contains the factor of ability, thinks the void volume of aggregate inside and the summation of the void volume between aggregate.Because the summation of the high more then void volume of DBP absorbed dose is big more, therefore be prone to contain rubber molecule.
For high aggregateization, think that high aggregateization has through the inner void volume of aggregate is increased, contain rubber molecule in a large number in aggregate inside, the distortion that relaxes the rubber molecule that contains through aggregate structure has the effect that suppresses heating.Yet,, have boundary when therefore implementing because the high aggregateization of over-drastic causes the processibility variation.
Under this background; Consider from the viewpoint of aggregate shapes; Result to the investigation of low fuel consumption property does, even be the carbon black of DBP absorbed dose peer-level, through the void volume of aggregate inside and the ratio of the void volume between aggregate are controlled; If can with can be in carbon black the volume reducing of the repressed rubber molecule of mobility to the degree that can keep wear resistant; Then mobility does not have the volume of repressed rubber molecule to increase relatively in carbon black, can suppress heating, can improve low fuel consumption property.
Specifically; Consider from above-mentioned viewpoint; The ratio of void area that will be deducted every aggregate cell projection area that the inner void area of the aggregate of shadow area obtains divided by shadow area by the envelope area of aggregate is as the index of the ratio of the inner void volume of expression aggregate; To furtheing investigate with the relation of DBP absorbed dose and wear resistant, low febrifacient relation; The result finds in the relation of the ratio of the void area of every aggregate cell projection area and DBP absorbed dose; When the ratio of the void area of every aggregate cell projection area is lower than the value of being calculated by the DBP absorbed dose, can realize excellent low fuel consumption property when keeping wear resistant.
The above formula (1) of the DBP absorption according to JIS K6217-4 "Gomu with grades one ボ nn sleeve ra boots black - basic characteristics - Part 4: Io イ Hikaru uptake Full seeking rather square (Compression test material including treasury stock)" (carbon black for rubber - basic characteristics - Part IV: Oil absorption for France (including compressed sample)) was measured.
In addition, the envelope area of the aggregate of following formula (2) and shadow area are tried to achieve through following method.
1mg joined in the developmental tube with the exsiccant carbon black sample, adds chloroform 2ml, through ultrasonic dispersing 3 minutes.The dispersive sample is fixed on the carbon black support membrane, takes with transmission electron microscope (directly multiplying power is 60000 times).For the two-dimensional projection image that obtains, with image analysis apparatus (NIRECO corporate system LUZEX-F), 1000 aggregates are measured, try to achieve the index of calculating by number MV, envelope area and the shadow area of envelope area, shadow area (CA) thus.
Wherein, the relation of envelope area and shadow area schematically is shown among Fig. 1.Among Fig. 1, gray star shape thing schematically shows 1 aggregate.
As the DBP absorbed dose of the summation of the void volume of aggregate inside and the void volume between aggregate with as the CA of the ratio of the void volume of aggregate inside, existing carbon black satisfies CA＞0.35 * DBP+2.7.The inventor has carried out showing with respect to the DBP absorbed dose sooty exploitation of low relatively CA, when concerning of CA＜0.35 * DBP+2 satisfied in discovery, shows excellent low fuel consumption property when keeping wear resistant.
In the following formula (1), CA greater than by (0.35 * DBP+2) calculate value the time, the balance of wear resistant and low heat generation, low fuel consumption property might variation, particularly might can not obtain hanging down fully heat generation, low fuel consumption property.
The hard(carbon)black of this embodiment instance can keep high-caliber wear resistant through satisfying the relation of formula (1), and shows very excellent low heat generation simultaneously.In other words, wear resistant is excellent with low febrifacient balance.In addition, thus applicable to the wheel for vehicle tire tread, the particularly passenger car that require high-caliber wear resistant and very excellent low fuel consumption property purposes such as compound rubber with tire tread.
Hard(carbon)black in this embodiment instance preferably further has the selectivity characrerisitic of following formula (3).
1.55＜D75/D25＜2.0 (3)
Wherein, D75 is that D25 is 25% frequency values with 75% frequency values of the aggregate of centrifugal settling method mensuration.D75/D25 is the index of expression aggregate diameter Distribution, is worth more for a short time, and the aggregate diameter Distribution is narrow more, is worth greatly more, and the aggregate diameter Distribution is wide more.
Hard(carbon)black in this embodiment instance is through satisfying following formula (3), and wear resistant is more excellent with low febrifacient balance.
D75/D25 according to JIS K6217-4 " the go system is with カ one ボ Application Block ラ Star Network-fundamental characteristics-the 6th one: デ イ ス Network heart light far away Shen fall method To I Ru agglutination body distribute ask め side " (" rubber grade carbon black-fundamental characteristics-the 6th one: the aggregation that is undertaken by the centrifugal smooth sedimentation of disk distributes asks method ") measure.
D75/D25 is 1.55 when following, and low heat generation or low fuel consumption property might variation, is 2.0 when above, the possible variation of wear resistant.
In addition, the preferred CTAB adsorption specific surface area of the hard(carbon)black in this embodiment instance is 55～150m
2/ g, the DBP absorbed dose is 100～150ml/100g.
The CTAB adsorption specific surface area is measured according to JIS K6217-3 " go system with カ one ボ Application Block ラ Star Network-fundamental characteristics-the 3rd one: specific area is asked め side-CTAB sorption method " (" rubber grade carbon black-fundamental characteristics-the 3rd one: specific area ask method ").
The CTAB adsorption specific surface area is less than 55m
2During/g, wear resistant might reduce, and on the other hand, surpasses 150m
2During/g, the dispersity of carbon black variation in the rubber and wear resistant might reduce.
The DBP absorbed dose might can not get necessary modulus during less than 100ml/100g, and on the other hand, when surpassing 150ml/100g, the viscosity of rubber combination raises, and processibility might variation.
More than the hard(carbon)black of this embodiment instance of explanation can be prepared as follows: for example use oil oven; This oil oven is connected on the combustion chamber with air introducing port; The air introducing port be used for from the direction of principal axis that is assemblied in stove fuel burner around supply with combustion air; And oil oven comprises the narrow footpath reaction chamber and the wide footpath reaction chamber in 2～3 stages with the raw material supplying mouth that is connected with on coaxial, through to raw material supplying position and feed rate, oil fuel with comprise the feed rate of the burning of air, oxygen or its mixture with gas; Reaction stand-by time etc. is adjusted, and can prepare above-mentioned hard(carbon)black thus.
Comprise that the narrow footpath reaction chamber in 2～3 stages and the oil oven of wide footpath reaction chamber exist the contracted flow of high temperature and high speed combustion gases and expansion to flow according to its ladder (section is poor) shape.On the other hand, because aggregate shapes is by the collision frequency between the carbon black particle, impact strength, collision course decision, so, must consider that the contracted flow of oil oven, expansion stream controls reflecting point in order to control aggregate shapes.
When preparing the hard(carbon)black of this embodiment instance; Consider contracted flow and expansion stream because of the formed fuel gas of stairstepping; Suitably to raw material supplying position and feed rate; Fuel quantity comprises the feed rate of the burning of oxygen or its mixture with gas, and it is effective that reaction stand-by time etc. is adjusted.Particularly preferably cut apart to come base feed by narrow footpath reaction chamber and the wide footpath reaction chamber that is positioned at the reaction chamber upper reaches, narrow footpath.
Then, the rubber combination of this embodiment instance is the rubber combination of the hard(carbon)black of above-mentioned embodiment instance being combined with 20～100 mass parts with respect to rubber 100 mass parts.
The rubber that uses in the rubber combination for example cooperates dienes viton such as polybutadiene rubber, styrene butadiene ribber, synthetic polyisoprene, butyl rubber, any one in tree elastomer or above-mentioned dienes viton and the tree elastomer or two or more.During cooperation, the carbon black that possesses above-mentioned characteristic is mixing with suitably necessary composition such as vulcanizing agent, vulcanization accelerator, vulcanization accelerator additive, inhibitor, tenderizer, softening agent, carries out sulfidizing.
If cooperate ratio to be lower than 20 mass parts with respect to rubber 100 mass parts, sooty, then can not fully give the modulus equal strength to compound rubber, on the other hand, if surpass 100 mass parts, then because the viscosity of title complex raises, mixing processibility significantly goes down.
The rubber combination of this embodiment instance can keep high-caliber wear resistant, and shows very excellent low heat generation simultaneously.In other words, wear resistant is excellent with low febrifacient balance.In addition, thus applicable to the purposes such as compound rubber of the passenger car that requires high-caliber wear resistant and very excellent low fuel consumption property with tire tread.
Embodiment
Below contrast with comparative example embodiments of the invention be described.This embodiment representes a scheme of the present invention, the invention is not restricted to this, can change arbitrarily within the scope of the invention.
(embodiment 1～3 and comparative example 1～4)
Use following stove.Be connected on the fuel burner that has from the direction of principal axis that is assemblied in stove around supply with the combustion chamber (internal diameter 900mm, length 2100mm) of the air introducing port of combustion air; Comprise possess have half-angle be 15 ° cone angle dwindle tapering, cylinder straight sections (internal diameter 530mm, length 400mm), can be on right angle orientation with respect to the stove axle first reaction chamber (internal diameter 370mm, length 3700mm) of the raw material supplying mouth of base feed; Second reaction chamber (internal diameter 254mm, length 500mm), have half-angle and be 15 ° cone angle the 3rd reaction chamber (length 900mm) and possess a plurality of reactions and stop that (QWNo.1～reaction QWNo.8) stops the stove of portion (internal diameter 420mm) with the water coolant spraying plant.And the raw material supplying mouth is provided with 4 places at first reaction chamber, and (FNo.1～FNo.4), be provided with 1 place (FNo.5) at second reaction chamber is provided with the (FNo.6～FNo.8) of 3 places at the 3rd reaction chamber.
Raw material uses the coal class raw oil of proportion 1.05 (100/4 ℃), BMCI 150, viscosity Engler (70/20 ℃) 1.32, toluene insoluble composition 0.02%; Fuel uses the hydrocarbon ils of proportion 0.96 (15/4 ℃), ash content 0.001%, viscosity Engler (40/20 ℃) 1.11, toluene insoluble composition 0.007%, change raw material supplying position (the 1st section supply with or 1 section supply with the 2nd section 2 sections), raw material supplying amount, fuel oil supply amount, combustion air feed rate, reacts and stops the carbon black that the position prepares embodiment 1～3 and comparative example 1～5.
The sooty preparation condition and the characteristic value that so obtain are shown in table 1, the table 2.In addition, the characteristic of the commercially available carbon black of example 1～3 (reference example 1:N220 (the new system ニ テ ロ of daily use chemicals carbon society Application #300), reference example 2:N234 (the new system ニ テ ロ of daily use chemicals carbon society Application #300IH), reference example 3:N339 (the new system ニ テ ロ of daily use chemicals carbon society Application #200IS)) as a reference has been shown in the table 3.
[table 1]
[table 2]
[table 3]
| Reference example 1 | Reference example 2 | Reference example 3 | |
| CTAB adsorption specific surface area (m 2/g) | 113 | 118 | 88 |
| DBP absorbed dose (ml/100g) | 113 | 124 | 122 |
| D75/D25(-) | 1.42 | 1.42 | 1.46 |
| CA(-) | 51 | 50 | 47 |
| (0.35 * DBP+2) calculated value | 41 | 45 | 45 |
Mixing with each carbon black of embodiment, comparative example, reference example is carried out shown in the table 4 according to the cooperation of ASTM D3192, under 145 ℃, 30 minutes of cure conditions, vulcanize, form rubber combination.
[table 4]
| Compounding ingredient | Cooperate umber (phr) |
| NR-RSS#1 | 100 |
| Carbon black | 50 |
| Zinc oxide | 5 |
| Triple Pressed Stearic Acid | 3 |
| Benzothiazyl disulfide | 0.6 |
| Sulphur | 2.5 |
Carry out the evaluation of the wear resistant and the fuel consumption characteristic of rubber combination with following condition, its result is shown among table 5 and Fig. 2.
Wherein, wear resistant, fuel consumption characteristic are that 100 o'clock correlation index representes with reference example 1 (ニ テ ロ Application #300IH).The high more then expression of the correlation index of wear resistant abrasion are few more, and wear resistant is more excellent.The more little then expression of the correlation index of fuel consumption characteristic heating is more little, and low fuel consumption property is more excellent.
(1) evaluation of wear characteristic
The evaluation of wear resistant uses society of this making of the rock institute blue Berne wear testing machine of system to be performed as follows with slip rate 25%.
Device: society of this making of rock institute system, the blue Berne wear testing machine of simply connected
Grinding stone: external diameter 305mm, grain GC, granularity 80, conjugation K
Sample: external diameter 49mm, internal diameter 23mm, wide 5mm
Sand: silicon carbide 90 orders
Sample velocities: 50.8 meters/minute (330rpm)
Knockout amount: 15 gram/minute
Slip rate: 25%
Load: 3.5kg
(2) evaluation of fuel consumption characteristic
The loss tangent that evaluation use Japan smart machine society system visco-elasticity spectrophotometer of fuel consumption characteristic is 60 ℃ (below, with tan δ (60 ℃) expression).
Device: Japan smart machine society system visco-elasticity spectrograph
Sample: long 20mm, wide 5mm, thick 2mm
Measure temperature: 60 ℃
Frequency: 20Hz
Initial deformation: 10%
Amplitude: 2%
[table 5]
| Blue Berne 25% abrasion (%) | tanδ(60℃)(％) | |
| Embodiment 1 | 88 | 73 |
| Embodiment 2 | 100 | 79 |
| Embodiment 3 | 114 | 93 |
| Comparative example 1 | 86 | 82 |
| Comparative example 2 | 98 | 89 |
| Comparative example 3 | 97 | 85 |
| Comparative example 4 | 116 | 104 |
| Comparative example 5 | 111 | 100 |
| Reference example 1 | 100 | 100 |
| Reference example 2 | 109 | 112 |
| Reference example 3 | 92 | 89 |
Know with shown in Figure 2 that like table 5 embodiment 1～3 that satisfies prescribed condition of the present invention all keeps high-caliber wear resistant, has very excellent low fuel consumption property simultaneously.On the other hand, the comparative example 1～5 of unmet prescribed condition of the present invention does not have the balance of wear resistant and fuel consumption characteristic as embodiment.Although comparative example 1,3 satisfies D75/D25, because CA is greater than (0.35 * DBP+2), when therefore comparing with embodiment 1,2, the improvement of fuel consumption characteristic is insufficient.Although comparative example 2 satisfies CA less than by (important document of 0.35 * DBP+2) value calculated, because D75/D25 is less than 1.55, when therefore comparing with embodiment 2, the low fuel consumption characteristic is insufficient.Comparative example 4,5 since D75/D25 less than 1.55 and CA greater than (0.35 * DBP+2), therefore compare and can not obtain sufficient fuel consumption characteristic with embodiment 3.
Claims (5)
1. a hard(carbon)black is characterized in that, has the selectivity characrerisitic of following formula (1),
CA＜0.35×DBP+2 (1)
Wherein, CA carries out image analysis to the two-dimensional projection image of the aggregate that obtains through transmission electron microscope, and by the index that the envelope area and the shadow area of aggregate utilize following formula (2) to calculate, DBP is the DBP absorbed dose,
CA=(envelope area-shadow area)/shadow area * 100 (2).
2. hard(carbon)black according to claim 1 is characterized in that, further has the selectivity characrerisitic of following formula (3),
1.55＜D75/D25＜2.0 (3)
Wherein, D75 is that D25 is 25% frequency values with 75% frequency values of the aggregate of centrifugal settling method mensuration.
3. hard(carbon)black according to claim 1 is characterized in that, the CTAB adsorption specific surface area is 55～150m
2/ g, the DBP absorbed dose is 100～150ml/100g.
4. hard(carbon)black according to claim 2 is characterized in that, the CTAB adsorption specific surface area is 55～150m
2/ g, the DBP absorbed dose is 100～150ml/100g.
5. a rubber combination is characterized in that, with respect to rubber 100 mass parts, each described hard(carbon)black forms in the claim 1～4 of cooperation 20～100 mass parts.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-187000 | 2009-08-12 | ||
| JP2009187000 | 2009-08-12 | ||
| PCT/JP2010/004898 WO2011018887A1 (en) | 2009-08-12 | 2010-08-04 | Hard carbon black and rubber composition |
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| Publication Number | Publication Date |
|---|---|
| CN102471608A true CN102471608A (en) | 2012-05-23 |
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| CN201080031800XA Pending CN102471608A (en) | 2009-08-12 | 2010-08-04 | Hard carbon black and rubber composition |
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| JP (1) | JPWO2011018887A1 (en) |
| CN (1) | CN102471608A (en) |
| IN (1) | IN2012DN00784A (en) |
| WO (1) | WO2011018887A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408973A (en) * | 2013-08-22 | 2013-11-27 | 龙星化工股份有限公司 | Low-themogenesis super-wear-resisting carbon black and production technology thereof |
| CN108961335A (en) * | 2018-07-11 | 2018-12-07 | 四川理工学院 | The measurement method of carbon black aggregate spacing in a kind of rubber |
| US10907049B2 (en) | 2014-08-29 | 2021-02-02 | Orion Engineered Carbons Gmbh | Process for controlling the porosity of carbon blacks |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013023538A (en) * | 2011-07-19 | 2013-02-04 | Yokohama Rubber Co Ltd:The | Rubber composition for tire |
| JP7154008B2 (en) * | 2017-12-26 | 2022-10-17 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Rubber composition and pneumatic tire |
| JP7022582B2 (en) * | 2017-12-26 | 2022-02-18 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | A method for producing a rubber wet masterbatch and a method for producing a rubber composition. |
| WO2019130803A1 (en) * | 2017-12-26 | 2019-07-04 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Rubber composition, pneumatic tire, production method for wet rubber masterbatch, and production method for rubber composition |
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2010
- 2010-08-04 JP JP2011526684A patent/JPWO2011018887A1/en active Pending
- 2010-08-04 IN IN784DEN2012 patent/IN2012DN00784A/en unknown
- 2010-08-04 CN CN201080031800XA patent/CN102471608A/en active Pending
- 2010-08-04 WO PCT/JP2010/004898 patent/WO2011018887A1/en active Application Filing
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| JPH04370126A (en) * | 1991-06-17 | 1992-12-22 | Tokai Carbon Co Ltd | Rubber composition |
| JPH06256576A (en) * | 1993-03-04 | 1994-09-13 | Tokai Carbon Co Ltd | Rubber composition |
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| JPH08169983A (en) * | 1994-12-16 | 1996-07-02 | Tokai Carbon Co Ltd | Rubber composition for tire tread |
| JPH1036704A (en) * | 1996-07-22 | 1998-02-10 | Nippon Steel Chem Co Ltd | Carbon black and rubber composition |
| JP3809230B2 (en) * | 1996-07-22 | 2006-08-16 | 新日化カーボン株式会社 | Carbon black and rubber composition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408973A (en) * | 2013-08-22 | 2013-11-27 | 龙星化工股份有限公司 | Low-themogenesis super-wear-resisting carbon black and production technology thereof |
| US10907049B2 (en) | 2014-08-29 | 2021-02-02 | Orion Engineered Carbons Gmbh | Process for controlling the porosity of carbon blacks |
| CN108961335A (en) * | 2018-07-11 | 2018-12-07 | 四川理工学院 | The measurement method of carbon black aggregate spacing in a kind of rubber |
Also Published As
| Publication number | Publication date |
|---|---|
| IN2012DN00784A (en) | 2015-06-26 |
| JPWO2011018887A1 (en) | 2013-01-17 |
| WO2011018887A1 (en) | 2011-02-17 |
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