CN109081961A - tire tread rubber composition and preparation method thereof - Google Patents
tire tread rubber composition and preparation method thereof Download PDFInfo
- Publication number
- CN109081961A CN109081961A CN201810883204.2A CN201810883204A CN109081961A CN 109081961 A CN109081961 A CN 109081961A CN 201810883204 A CN201810883204 A CN 201810883204A CN 109081961 A CN109081961 A CN 109081961A
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- graphene oxide
- agent
- tire tread
- tread rubber
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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
-
- 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
- B60C1/0016—Compositions of the tread
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The present invention relates to field of rubber technology, specifically a kind of Tire tread rubber composition.With the diene elastomer benchmark of 100 parts by weight, also comprising the raw material of following parts by weight: graphene oxide/0-90 parts of silica 1,0-10 parts of coupling agent, 0-5 parts of dispersing agent, 2-40 parts of carbon black, 1-7 parts of activating agent, 1-8 parts of anti-aging agent, 1-4 parts of promotor, 1-3 parts of sulphur, 0.1-1 parts of antiscorching agent.Of the invention introduces graphene oxide in a manner of graphene oxide/silicon dioxide composite material, significantly increase the low temperature compliance of tyre surface, that is the ice-snow field braking ability of tire significantly improves, the heat of rubber composition is remarkably decreased simultaneously, i.e. the rolling of tire, which hinders, significantly reduces, while having improved antistatic property.
Description
Technical field
The present invention relates to a kind of rubber for tire technical field, specifically a kind of Tire tread rubber composition and its system
Preparation Method.
Background technique
It is well known that the requirement to energy conservation and environmental protection, security performance is higher and higher with the development of tyre industry.Energy-saving ring
The hysteresis loss of guaranteed request tire is low, rolling resistance is low, and the little energy of consumption is energy saving, while using green material etc.；Peace
Full performance requirement is excellent enough in dry, wetland road surface performance, the braking ability etc. on ice-snow field road surface of grasp, guarantee normally,
Traffic safety under severe road surface or weather.
As a kind of enhancing inorganic filler, application of the silica in tire is got more and more attention.In load-carrying tire, by
Nonrubber hydrocarbon composition influence silica and natural rubber in natural gum it is compound, the use of a large amount of coupling agents is not also bright
Aobvious improvement, and silica-filled sizing material wears no resistance, so dosage of the silica in load-carrying tire is few, only adds
Add a small amount of raising tear resistance, the use of a large amount of carbon blacks, causes heat high, rolling resistance is high, glue at low temperature in load-carrying tire
Expect that compliance is low, ice-snow field braking is poor, how to improve ice-snow field braking, reduces tire heat as important research direction.
Summary of the invention
The object of the invention is in order to overcome the deficiencies of the prior art and provide a kind of Tire tread rubber composition and its
Preparation method significantly increases the low temperature compliance of tyre surface, i.e. the ice-snow field braking ability of tire significantly improves, while building rubber compound
The heat of object is remarkably decreased, i.e., the rolling of tire, which hinders, significantly reduces, while having improved antistatic property.
The present invention solve above-mentioned technical problem the technical solution adopted is that: a kind of Tire tread rubber composition, feature
It is, also includes the raw material of following parts by weight: graphene oxide/silica with the diene elastomer benchmark of 100 parts by weight
10-90 parts, 0-10 parts of coupling agent, 0-5 parts of dispersing agent, 2-40 parts of carbon black, 1-7 parts of activating agent, 1-8 parts of anti-aging agent, promotor 1-4
Part, 1-3 parts of sulphur, 0.1-1 parts of antiscorching agent.
Graphene oxide/the silicon dioxide composite material is made of graphene oxide and silica, titanium dioxide
The additional amount of silicon is 10-90 parts, and silica/graphene oxide mass ratio is (4.0-90.0): 1.0.
The graphene oxide is single-layer graphene oxide or multilayer graphene oxide, and graphene oxide oxygen content exists
20%-70%, thickness 0.7-2nm, 7-20 μm of width.
The silica includes not pre- improved silica or in advance through coupling agent modified silica, nitrogen adsorption
Specific surface area is in 100-240m2Between/g.
The dispersing agent be include the auxiliary agent containing soaps and aliphatic ester, dispersing agent of the fusing point at 40-90 DEG C.
It is preferred that silica/graphene oxide mass ratio (4.0-60.0): 1.0.
Styrene/butadiene copolymers that the diene elastomer includes, natural polyisoprene, in solution or cream
The synthetic polyisoprenes of the styrene/butadiene copolymers that are prepared in liquid, cis-1,4 chaining greater than 95%, cis- -1,4
The mixture of polybutadiene of the linkage content greater than 95% or several elastomers.
A method of aforesaid tyre tread rubber composition is prepared, is included the following steps, component ratio is by weight
Meter:
(1) one section of mixing: rotor speed is in 40-100rpm, pressure pressure: 0.2-0.8MPa, first by above-mentioned diene elastomer
Body, dispersing agent, anti-aging agent, activating agent, which are added in mixer, carries out mixing 30-50s；Then bolt is risen, carbon black, graphite oxide is added
Alkene/silicon dioxide composite material, coupling agent are kneaded 10-100s；Remaining carbon black, anti-aging agent and activating agent etc. is added, is kneaded 10-
200s obtains one section of rubber master batch；
(2) one sections are parked: prepare in step 1 one section of rubber master batch is put cooled to room temperature in air；
(3) refining eventually: rotor speed 10-80rpm, pressure pressure: 0.1-0.7MPa weighs one section of rubber master batch according to fill factor, according to
It is secondary that one section of rubber master batch, sulphur, promotor, antiscorching agent are added in mixer, mixing 50-350s is carried out, is obtained containing graphite oxide
Alkene/silicon dioxide composite material tire tread rubber compound；
(4) finished composition is parked: the rubber compound prepared in step 3 is put cooled to room temperature in air；
(5) the above-mentioned tire tread rubber compound containing graphene oxide/silicon dioxide composite material is vulcanized, curing temperature
150 DEG C, time 10-60min contains graphene oxide/silicon dioxide composite material tire tread rubber to get to the present invention
Composition.
The carbon black, including N375, N347, N330, N326, N339, N351, N234, N220, N134, N115, N110
At least one of its modified product.
The activating agent includes zinc oxide and stearic acid, without special provision.
The coupling agent includes but are not limited to following: bis- (3- triethoxysilane propyl) tetrasulfides or its with it is lazy
Property dispersing agent press 1:1 weight ratio mixture, bis- (3- triethoxysilane propyl) disulphide or its pressed with inertia dispersing agent
The mixture of 1:1 weight ratio, bis- (- six ethyoxyl of the propyl) siloxanes of γ-mercapto propyl-ethoxy, 3- octanoylthio -1- propyl
Triethoxysilane, γ-methacryloxypropyl trimethoxy silane, γ-glycidyl ether oxygen propyl trimethoxy silicon
Alkane.
The promotor is accelerant N-cyclohexyl -2-[4-morpholinodithio sulfenamide, promotor diphenylguanidine, accelerant N-uncle
Butyl -2-[4-morpholinodithio sulfenamide, accelerant disulfide tetra methylthiuram, accelerant N, N- dicyclohexyl -2- benzo thiophene
Azoles sulfenamide, accelerant N, at least one of N- diethyl-2-benzothiazole sulfenamide or two kinds or more.
The sulphur includes the one or more of general industry sulphur, insoluble sulfur and multi-functional cross-linking aid.
The invention has the advantages that graphene oxide is introduced in a manner of graphene oxide/silicon dioxide composite material,
The low temperature compliance of tyre surface is significantly increased, i.e. the ice-snow field braking ability of tire significantly improves, while the heat of rubber composition
It is remarkably decreased, i.e., the rolling of tire, which hinders, significantly reduces, while having improved antistatic property.
Specific embodiment
Below with reference to embodiment, the present invention will be further described:
Embodiment 1:
1. preparing 264g through coupling agent modified pre- ball milling silica；Prepare 13g graphene oxide powdery solid.
2. the preparation containing graphene oxide/silicon dioxide composite material Tire tread rubber composition:
(1) one section of mixing: rotor speed is in 40-100rpm, pressure pressure: 0.2-0.8MPa, first by the natural rubber of above-mentioned 0.7kg
Glue, 7.4g dispersing agent, 11.1g paraffin and microwax, 14.7g activating agent, which are added in mixer, carries out mixing 30-50s；Bolt is risen, is added
Enter 13g oxidation stone prepared in 50g carbon black, the coupling agent modified silica of the pre- ball milling of 264g prepared in step 1 and step 1
Black alkene solid presses bolt, is kneaded 10-100s；Bolt is risen, 73g carbon black, the agent of 25.8g residual activity, 22.1g anti-aging agent is added, presses bolt,
It is kneaded 10-200s, obtains one section of rubber master batch.
(2) one sections are parked: prepare in step 1 one section of rubber master batch is put cooled to room temperature in air.
(3) refining eventually: rotor speed 0-80rpm, pressure pressure: 0.1-0.7MPa weighs one section of rubber master batch according to fill factor
Mono- section of rubber master batch of 1184g, 33.3g sulphur, promotor and antiscorching agent are successively added in mixer, carry out mixing 50- by 1184g
350s is obtained containing graphene oxide/silicon dioxide composite material tire tread rubber compound.
(4) finished composition is parked: the rubber compound prepared in step 3 is put cooled to room temperature in air.
(5) preparation of vulcanizate: contain graphene oxide/silicon dioxide composite material tire tread rubber compound for above-mentioned
Vulcanized, 150 DEG C of curing temperature, time 10-60min is obtained containing graphene oxide/silicon dioxide composite material tire
Tread rubber composition, and test, the tire such as physical property, tearing, aging, DIN abrasion, resistance, DMA, Penn effect are carried out to it
The performance of tread rubber composition is shown in Table 1.
Comparative example 1:
According to the method operation in embodiment 1, the difference is that graphene oxide powdery solid and silica solid change in step 1
For blank silica solid, and reduced graphene oxide mass fraction is refilled with identical mass fraction carbon black.
Embodiment 2:
1. preparing the finely dispersed graphite oxide containing 264g coupling agent modified pre- ball milling silica and 13g graphene oxide
Alkene/silicon dioxide composite material A1.
2. the preparation containing graphene oxide/silicon dioxide composite material Tire tread rubber composition:
(1) one section of mixing: rotor speed is in 40-100rpm, pressure pressure: 0.2-0.8MPa, first by 0.7kg natural rubber,
7.4g dispersing agent, 11.1g anti-aging agent paraffin and microwax, 14.7g activating agent, which are added in mixer, carries out mixing 30-50s；Then
Bolt is risen, the composite A 1 prepared in addition 50g carbon black, 277g step 1 presses bolt, is kneaded 10-100s；Bolt is risen, 73g charcoal is added
Black, 47.9g antioxidant 4020, RD and residual activity agent zinc oxide are kneaded 10-200s, obtain one section of rubber master batch.
(2) one sections are parked: prepare in step 1 one section of rubber master batch is put cooled to room temperature in air.
(3) refining eventually: rotor speed 0-80rpm, pressure pressure: 0.1-0.7MPa weighs one section of rubber master batch according to fill factor
One section of rubber master batch, 33.3g sulphur, promotor and antiscorching agent are successively added in mixer, carry out mixing 50-350s, obtain by 1184g
To containing graphene oxide/silicon dioxide composite material tire tread rubber compound.
(4) finished composition is parked: the rubber compound prepared in step 3 is put cooled to room temperature in air.
(5) vulcanize above-mentioned containing graphene oxide/silicon dioxide composite material tire tread rubber compound, vulcanize
It 150 DEG C of temperature, time 10-60min, obtains combining containing graphene oxide/silicon dioxide composite material tire tread rubber
Object, and test, the tire tread rubber combination such as physical property, tearing, aging, DIN abrasion, resistance, DMA, Penn effect are carried out to it
The performance of object is shown in Table 1.
Comparative example 2:
According to the method operation in embodiment 2, the difference is that graphene oxide/silicon dioxide composite material is changed to sky in step 1
White silica solid, and reduced graphene oxide mass fraction is refilled with identical mass fraction carbon black
Embodiment 3:
1. preparing the finely dispersed graphite oxide containing 264g coupling agent modified pre- ball milling silica and 25g graphene oxide
Alkene/silicon dioxide composite material A2.
2. the preparation containing graphene oxide/silicon dioxide composite material Tire tread rubber composition:
(1) one section of mixing: rotor speed is in 40-100rpm, pressure pressure: 0.2-0.8MPa, first by 0.7kg natural rubber,
7.4g dispersing agent, 11.1g anti-aging agent paraffin and microwax, 14.9g activating agent, which are added in mixer, carries out mixing 30-50s；It rises
Then bolt is added 50g carbon black, the composite A 2 that 293g is prepared by step 1, presses bolt, is kneaded 10-100s；Bolt is risen, 61g is added
Carbon black, 47.9g antioxidant 4020, RD and residual activity agent zinc oxide etc. are kneaded 10-200s, obtain one section of rubber master batch.
(2) one sections are parked: prepare in step 1 one section of rubber master batch is put cooled to room temperature in air.
(3) refining eventually: rotor speed 0-80rpm, pressure pressure: 0.1-0.7MPa weighs one section of rubber master batch according to fill factor
One section of rubber master batch, 36.9g sulphur, promotor and antiscorching agent are successively added in mixer, carry out mixing 50-350s, obtain by 1184g
To containing graphene oxide/silicon dioxide composite material tire tread rubber compound.
(4) finished composition is parked: the rubber compound prepared in step 3 is put cooled to room temperature in air.
(5) vulcanize above-mentioned containing graphene oxide/silicon dioxide composite material tire tread rubber compound, vulcanize
It 150 DEG C of temperature, time 10-60min, obtains combining containing graphene oxide/silicon dioxide composite material tire tread rubber
Object, and test, the tire tread rubber combination such as physical property, tearing, aging, DIN abrasion, resistance, DMA, Penn effect are carried out to it
The performance of object is shown in Table 2.
Comparative example 3:
According to the method operation in embodiment 3, the difference is that graphene oxide and silicon dioxide composite material are changed to sky in step 1
White silica solid, and reduced graphene oxide mass fraction is refilled with identical mass fraction carbon black.
Embodiment 4:
1. preparing the finely dispersed oxidation stone of 278g containing the coupling agent modified pre- ball milling silica of 258g and 20g graphene oxide
Black alkene/silicon dioxide composite material A3.
2. the preparation containing graphene oxide/silicon dioxide composite material Tire tread rubber composition:
(1) one section of mixing: rotor speed is in 40-100rpm, pressure pressure: 0.2-0.8MPa, first by 0.7kg natural rubber,
7.4g dispersing agent, the anti-aging agent paraffin of 11.1g and microwax, 14.9g activating agent, which are added in mixer, carries out mixing 30-50s；It rises
Then bolt is added 50g carbon black, the composite A 3 that 278g is prepared by step 1, presses bolt, is kneaded 10-100s；Bolt is risen, 85g is added
Carbon black, 51.3g antioxidant 4020, RD and residual activity agent zinc oxide press bolt, are kneaded 10-200s, obtain one section of rubber master batch.
(2) one sections are parked: prepare in step 1 one section of rubber master batch is put cooled to room temperature in air.
(3) refining eventually: rotor speed 0-80rpm, pressure pressure: 0.1-0.7MPa weighs one section of rubber master batch according to fill factor
One section of rubber master batch, 36.6g sulphur, promotor and antiscorching agent are successively added in mixer, carry out mixing 50-350s, obtain by 1184g
To containing graphene oxide/silicon dioxide composite material tire tread rubber compound.
(4) finished composition is parked: the rubber compound prepared in step 3 is put cooled to room temperature in air.
(5) vulcanize above-mentioned containing graphene oxide/silicon dioxide composite material tire tread rubber compound, vulcanize
It 150 DEG C of temperature, time 10-60min, obtains combining containing graphene oxide/silicon dioxide composite material tire tread rubber
Object, and test, the tire tread rubber combination such as physical property, tearing, aging, DIN abrasion, resistance, DMA, Penn effect are carried out to it
The performance of object is shown in Table 2.
Comparative example 4:
According to the method operation in embodiment 4, the difference is that graphene oxide and silicon dioxide composite material are changed to sky in step 1
White silica solid, and silica quality number reduces 1 part, carbon black mass number is constant.
Claims (8)
1. a kind of Tire tread rubber composition, which is characterized in that with the diene elastomer benchmark of 100 parts by weight, also include
The raw material of following parts by weight: graphene oxide/0-90 parts of silica 1,0-10 parts of coupling agent, 0-5 parts of dispersing agent, carbon black 2-40
Part, 1-7 parts of activating agent, 1-8 parts of anti-aging agent, 1-4 parts of promotor, 1-3 parts of sulphur, 0.1-1 parts of antiscorching agent.
2. Tire tread rubber composition according to claim 1, it is characterised in that the graphene oxide/silica
Composite material is made of graphene oxide and silica, and the additional amount of silica is 10-90 parts, silica/oxidation
Graphene mass ratio is 4.0-90.0:1.0.
3. Tire tread rubber composition according to claim 1, it is characterised in that the graphene oxide is single layer oxygen
Graphite alkene or multilayer graphene oxide, graphene oxide oxygen content is in 20%-70%, thickness 0.7-2nm, and 7-20 μm of width.
4. Tire tread rubber composition according to claim 1, it is characterised in that the silica includes not changing in advance
Property silica or in advance through coupling agent modified silica, nitrogen adsorption specific surface area is in 100-240m2Between/g.
5. Tire tread rubber composition according to claim 1, it is characterised in that the dispersing agent is to include containing soap
The auxiliary agent of class and aliphatic ester, dispersing agent of the fusing point at 40-90 DEG C.
6. Tire tread rubber composition according to claim 1, it is characterised in that the silica/graphene oxide
Mass ratio 4.0-60.0:1.0.
7. Tire tread rubber composition according to claim 1, it is characterised in that the diene elastomer includes
It is styrene/butadiene copolymers, natural polyisoprene, the styrene/butadiene copolymers prepared in solution or in lotion, suitable
Synthetic polyisoprenes of -1,4 linkage content of formula greater than 95%, polybutadiene of the cis-1,4 chaining greater than 95% or several elasticity
The mixture of body.
8. a kind of method for preparing Tire tread rubber composition described in claim 1, includes the following steps, component ratio is pressed
Parts by weight meter:
(1) one section of mixing: rotor speed is in 40-100rpm, pressure pressure: 0.2-0.8MPa, first by above-mentioned diene elastomer
Body, dispersing agent, anti-aging agent, activating agent, which are added in mixer, carries out mixing 30-50s；Then bolt is risen, carbon black, graphite oxide is added
Alkene/silicon dioxide composite material, coupling agent are kneaded 10-100s；Remaining carbon black, anti-aging agent and activating agent etc. is added, is kneaded 10-
200s obtains one section of rubber master batch；
(2) one sections are parked: prepare in step 1 one section of rubber master batch is put cooled to room temperature in air；
(3) refining eventually: rotor speed 10-80rpm, pressure pressure: 0.1-0.7MPa weighs one section of rubber master batch according to fill factor, according to
It is secondary that one section of rubber master batch, sulphur, promotor, antiscorching agent are added in mixer, mixing 50-350s is carried out, is obtained containing graphite oxide
Alkene/silicon dioxide composite material tire tread rubber compound；
(4) finished composition is parked: the rubber compound prepared in step 3 is put cooled to room temperature in air；
(5) the above-mentioned tire tread rubber compound containing graphene oxide/silicon dioxide composite material is vulcanized, curing temperature
150 DEG C, time 10-60min contains graphene oxide/silicon dioxide composite material tire tread rubber to get to the present invention
Composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810883204.2A CN109081961A (en) | 2018-08-06 | 2018-08-06 | tire tread rubber composition and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810883204.2A CN109081961A (en) | 2018-08-06 | 2018-08-06 | tire tread rubber composition and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN109081961A true CN109081961A (en) | 2018-12-25 |
Family
ID=64833615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810883204.2A Withdrawn CN109081961A (en) | 2018-08-06 | 2018-08-06 | tire tread rubber composition and preparation method thereof |
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| CN (1) | CN109081961A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109867832A (en) * | 2019-03-07 | 2019-06-11 | 江苏康普印刷科技有限公司 | A kind of graphene oxide/nitrile rubber nanocomposite and preparation method thereof |
| WO2021034592A1 (en) * | 2019-08-16 | 2021-02-25 | Ppg Industries Ohio, Inc. | Silica-graphenic carbon composite particles and elastomeric materials including such particles |
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| CN103275368A (en) * | 2012-02-23 | 2013-09-04 | 北京化工大学 | Method for preparing graphene oxide/white carbon black/rubber nanocomposite by mechanical blending |
| CN105368097A (en) * | 2014-08-18 | 2016-03-02 | 中国石油化工股份有限公司 | Nanometer composite material and preparation method thereof, vulcanized rubber and applications thereof |
| CN105482201A (en) * | 2016-01-04 | 2016-04-13 | 青岛双星轮胎工业有限公司 | High-performance tire containing oxidized graphene |
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2018
- 2018-08-06 CN CN201810883204.2A patent/CN109081961A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275368A (en) * | 2012-02-23 | 2013-09-04 | 北京化工大学 | Method for preparing graphene oxide/white carbon black/rubber nanocomposite by mechanical blending |
| CN105368097A (en) * | 2014-08-18 | 2016-03-02 | 中国石油化工股份有限公司 | Nanometer composite material and preparation method thereof, vulcanized rubber and applications thereof |
| CN105482201A (en) * | 2016-01-04 | 2016-04-13 | 青岛双星轮胎工业有限公司 | High-performance tire containing oxidized graphene |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109867832A (en) * | 2019-03-07 | 2019-06-11 | 江苏康普印刷科技有限公司 | A kind of graphene oxide/nitrile rubber nanocomposite and preparation method thereof |
| WO2021034592A1 (en) * | 2019-08-16 | 2021-02-25 | Ppg Industries Ohio, Inc. | Silica-graphenic carbon composite particles and elastomeric materials including such particles |
| CN114599717A (en) * | 2019-08-16 | 2022-06-07 | Ppg工业俄亥俄公司 | Silica-graphene carbon composite particles and elastomeric materials comprising such particles |
| JP2022544595A (en) * | 2019-08-16 | 2022-10-19 | ピーピージー・インダストリーズ・オハイオ・インコーポレイテッド | Silica-graphene carbon composite particles and elastomeric materials containing such particles |
| US11781020B2 (en) | 2019-08-16 | 2023-10-10 | Ppg Industries Ohio, Inc. | Silica-graphenic carbon composite particles and elastomeric materials including such particles |
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Application publication date: 20181225 |