CN113061296B - Carbon nanotube tread rubber and preparation method thereof - Google Patents
Carbon nanotube tread rubber and preparation method thereof Download PDFInfo
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- CN113061296B CN113061296B CN202110281062.4A CN202110281062A CN113061296B CN 113061296 B CN113061296 B CN 113061296B CN 202110281062 A CN202110281062 A CN 202110281062A CN 113061296 B CN113061296 B CN 113061296B
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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
- C08L21/00—Compositions of unspecified rubbers
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- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- 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
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
Abstract
The invention provides a carbon nano tube tread rubber and a preparation method thereof, wherein the tread rubber comprises the following components in parts by weight: 40-60 parts of No. 2 rubber, 20-40 parts of BR9000 butadiene rubber, 10-30 parts of SBR1500 styrene butadiene rubber, 5-15 parts of carbon nano tube, 15-35 parts of polyoxypropylene glycol, 20-40 parts of carbon black, 5-11 parts of naphthenic oil or aromatic oil, 2-6 parts of active agent, 2.5-6.5 parts of anti-aging agent, 1-3 parts of tackifying resin, 0.8-1.8 parts of accelerator and 1-3 parts of sulfur. According to the formula and the compounding ratio of the invention, various materials are added, so that the dispersion of the carbon nano tubes can be promoted, and the agglomeration and entanglement can be prevented. The rolling resistance can be effectively reduced, so that the vehicle is more energy-saving, and the energy waste is reduced. The surface temperature of the tire crown is greatly reduced, and the service life of the tire is prolonged. The generated static electricity can be exported in time, and the driving safety is enhanced. The flexibility of the tread is improved, the tread is more attached to the road surface, the grip force is stronger, and the automatic distance of the dry land is shortened. The method is simple and easy to implement, has low cost and no pollution to the environment, and is suitable for industrial production.
Description
Technical Field
The invention relates to a carbon nanotube tread rubber and a preparation method thereof, belonging to the field of tire rubber.
Background
With the development of automobiles in the direction of high speed, safety, energy conservation and comfort, the requirement for high performance of tires is higher and higher, which requires that the performance of the tire tread rubber is obviously improved. That is, the tire tread rubber has excellent wear resistance and low rolling resistance while having good wet skid resistance. With the appearance of the carbon nanotubes with high modulus and high strength, the carbon nanotubes endow the high polymer material with the characteristics of high strength, low expansion, high wear resistance and the like, are used as reinforcing fillers in tire tread formulations, can enable the performance of tread rubber to obtain obvious balance, and are increasingly concerned by people in the field of rubber materials.
However, the carbon nano tube belongs to a nano-grade material, has small particle size, large specific surface area, high surface energy and high possibility of agglomeration, is easy to agglomerate into useless blocks in the mixing process of the rubber material, and causes the problem of uneven dispersion, thereby not only influencing the filling modification effect, but also damaging the performance of the rubber material. Therefore, no commercial or industrial tires are currently on the market.
Disclosure of Invention
In order to solve the technical problems, the invention provides a carbon nanotube tread rubber for the first purpose and a preparation method of the carbon nanotube tread rubber for the second purpose, which can improve the dispersibility of carbon nanotubes, reduce the rolling resistance, improve the flexibility and the grip strength, shorten the braking distance and increase the driving safety performance.
In order to achieve the purpose, the invention provides a carbon nanotube tread rubber which is characterized by comprising the following components in parts by weight: 40-60 parts of No. 2 rubber, 20-40 parts of BR9000 butadiene rubber, 10-30 parts of SBR1500 styrene butadiene rubber, 5-15 parts of carbon nano tube, 15-35 parts of polyoxypropylene glycol, 20-40 parts of carbon black, 5-11 parts of naphthenic oil or aromatic oil, 2-6 parts of active agent, 2.5-6.5 parts of anti-aging agent, 1-3 parts of tackifying resin, 0.8-1.8 parts of accelerator and 1-3 parts of sulfur.
In the scheme, the method comprises the following steps: the activator is zinc oxide and stearic acid, wherein the zinc oxide accounts for 1-3 parts, and the rest is stearic acid.
In the scheme, the method comprises the following steps: the anti-aging agent is one of an anti-aging agent 4020, an anti-aging agent 3100 and an anti-aging agent 4010.
In the scheme, the method comprises the following steps: the accelerant is one of accelerant M, accelerant DM, accelerant CZ and accelerant TMTD.
The second object of the present invention is achieved by: the preparation method of the carbon nanotube tread rubber is characterized by comprising the following steps: 1) putting the No. 2 rubber, BR9000 butadiene rubber and SBR1500 butadiene styrene rubber into an internal mixer, uniformly mixing, then putting the carbon nano tube, the polyoxypropylene glycol, the activator, the anti-aging agent, the tackifying resin, the accelerator and the sulfur, continuously uniformly mixing, finally putting the naphthenic oil or the aromatic oil and the carbon black, and mixing to obtain a rubber material;
2) extruding the rubber material into sheets by a roller extruding extruder;
3) forming a green tire on a forming machine;
4) and vulcanizing the tire blank to obtain the tire.
In the scheme, the method comprises the following steps: the temperature of the internal mixer is controlled to be less than 160 ℃, and the pressure is 0.75-0.85 MPa.
In the scheme, the method comprises the following steps: the mixing time is 30-60 seconds after each feeding.
Has the advantages that:
1) according to the formula and the compounding ratio of the invention, various materials are added, so that the dispersion of the carbon nano tubes can be promoted, and the agglomeration and entanglement can be prevented.
2) The rolling resistance can be effectively reduced, so that the vehicle is more energy-saving, and the energy waste is reduced.
3) The surface temperature of the tire crown is greatly reduced, and the service life of the tire is prolonged.
4) The generated static electricity can be exported in time, and the driving safety is enhanced.
5) The flexibility of the tread is improved, the tread is more attached to the road surface, the grip force is stronger, and the automatic distance of the dry land is shortened.
6) The method is simple and easy to implement, low in cost and free of environmental pollution, is industrially produced at present, and is suitable for industrial production.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to examples.
Example 1
The carbon nanotube tread rubber comprises the following components in parts by weight: 40 parts of No. 2 rubber, 20 parts of BR9000 butadiene rubber, 10 parts of SBR1500 styrene-butadiene rubber, 5 parts of carbon nano tubes, 15 parts of polyoxypropylene glycol, 20 parts of carbon black, 5 parts of naphthenic oil or aromatic oil, 2 parts of an active agent, 2.5 parts of an anti-aging agent, 1 part of tackifying resin, 0.8 part of an accelerator and 1 part of sulfur.
The active agents are zinc oxide and stearic acid, wherein the zinc oxide accounts for 1 part, and the balance is stearic acid.
The anti-aging agent is anti-aging agent 4020.
The accelerator is an accelerator M.
The preparation method comprises the following steps:
1) putting the No. 2 rubber, BR9000 butadiene rubber and SBR1500 butadiene styrene rubber into an internal mixer, mixing for 60 seconds until the mixture is uniformly mixed, then putting the carbon nano tube, the polyoxypropylene glycol, the activator, the anti-aging agent, the tackifying resin, the accelerator and the sulfur, continuously mixing for 60 seconds until the mixture is uniformly mixed, finally putting the naphthenic oil or the aromatic oil and the carbon black, continuously mixing for 30 seconds, mixing to obtain a rubber material, and controlling the temperature of the internal mixer to be less than 160 ℃ and the pressure to be 0.75-0.85 MPa.
2) Extruding the rubber material into sheets by a roller extruding extruder;
3) forming a green tire on a forming machine;
4) and vulcanizing the tire blank to obtain the tire.
Example 2
The carbon nanotube tread rubber comprises the following components in parts by weight: 60 parts of No. 2 rubber, 40 parts of BR9000 butadiene rubber, 30 parts of SBR1500 styrene-butadiene rubber, 15 parts of carbon nano tubes, 35 parts of polyoxypropylene glycol, 40 parts of carbon black, 11 parts of naphthenic oil or aromatic oil, 6 parts of an active agent, 6.5 parts of an anti-aging agent, 3 parts of tackifying resin, 1.8 parts of an accelerator and 3 parts of sulfur.
The active agents are zinc oxide and stearic acid, wherein the zinc oxide accounts for 3 parts, and the rest is stearic acid.
The anti-aging agent is anti-aging agent 3100.
The accelerator is accelerator DM.
The preparation method comprises the following steps:
1) adding 2# rubber, BR9000 butadiene rubber and SBR1500 butadiene styrene rubber into an internal mixer, uniformly mixing, then adding carbon nano tubes, polyoxypropylene glycol, an activating agent, an anti-aging agent, tackifying resin, an accelerator and sulfur, continuously uniformly mixing, finally adding naphthenic oil or aromatic oil and carbon black, and mixing to obtain a sizing material, wherein the mixing time is 60 seconds after each feeding. The temperature of the internal mixer is controlled to be less than 160 ℃, and the pressure is 0.75-0.85 MPa.
2) Extruding the rubber material into sheets by a roller extruding extruder;
3) forming a green tire on a forming machine;
4) and vulcanizing the tire blank to obtain the tire.
Example 3
The carbon nanotube tread rubber comprises the following components in parts by weight: 50 parts of No. 2 rubber, 30 parts of BR9000 butadiene rubber, 20 parts of SBR1500 styrene-butadiene rubber, 10 parts of carbon nano tubes, 20 parts of polyoxypropylene glycol, 28 parts of carbon black, 7 parts of naphthenic oil or aromatic oil, 5 parts of an active agent, 5 parts of an anti-aging agent, 2 parts of tackifying resin, 1.2 parts of an accelerator and 2 parts of sulfur.
The active agents are zinc oxide and stearic acid, wherein the zinc oxide accounts for 2 parts, and the rest is stearic acid.
The anti-aging agent is anti-aging agent 4010.
The accelerant is an accelerant CZ.
The preparation method comprises the following steps:
1) the preparation method comprises the steps of putting 2# rubber, BR9000 butadiene rubber and SBR1500 butadiene styrene rubber into an internal mixer, uniformly mixing, then putting carbon nano tubes, polyoxypropylene glycol, an active agent, an anti-aging agent, tackifying resin, an accelerator and sulfur, continuously uniformly mixing, finally putting naphthenic oil or aromatic oil and carbon black, and mixing to obtain a rubber material, wherein the mixing time is 60 seconds after each feeding. The temperature of the internal mixer is controlled to be less than 160 ℃, and the pressure is 0.75-0.85 MPa.
2) Extruding the rubber material into sheets by a roller extruding extruder;
3) forming a green tire on a forming machine;
4) and vulcanizing the tire blank to obtain the tire.
Example 4
The carbon nanotube tread rubber comprises the following components in parts by weight: 45 parts of No. 2 rubber, 35 parts of BR9000 butadiene rubber, 25 parts of SBR1500 styrene-butadiene rubber, 12 parts of carbon nano tubes, 22 parts of polypropylene oxide glycol, 25 parts of carbon black, 6 parts of naphthenic oil or aromatic oil, 4 parts of an active agent, 4 parts of an anti-aging agent, 2 parts of tackifying resin, 1.2 parts of an accelerator and 2 parts of sulfur.
The active agents are zinc oxide and stearic acid, wherein the zinc oxide accounts for 2 parts, and the rest is stearic acid.
The anti-aging agent is anti-aging agent 4010.
The promoter is TMTD.
The preparation method comprises the following steps:
1) the preparation method comprises the steps of putting 2# rubber, BR9000 butadiene rubber and SBR1500 butadiene styrene rubber into an internal mixer, uniformly mixing, then putting carbon nano tubes, polyoxypropylene glycol, an active agent, an anti-aging agent, tackifying resin, an accelerator and sulfur, continuously uniformly mixing, finally putting naphthenic oil or aromatic oil and carbon black, and mixing to obtain a rubber material, wherein the mixing time is 60 seconds after each feeding. The temperature of the internal mixer is controlled to be less than 160 ℃, and the pressure is 0.75-0.85 MPa.
2) Extruding the rubber material into sheets by a roller extruding extruder;
3) forming a green tire on a forming machine;
4) and vulcanizing the tire blank to obtain the tire.
The tires obtained according to the invention were tested for their performance, the results of which are shown in the following table:
the above description is for the purpose of describing the invention in more detail with reference to specific preferred embodiments, and it should not be construed that the embodiments of the invention are limited to those described herein, and it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (7)
1. The carbon nanotube tread rubber is characterized by comprising the following components in parts by weight: 40-60 parts of No. 2 rubber, 20-40 parts of BR9000 butadiene rubber, 10-30 parts of SBR1500 styrene butadiene rubber, 5-15 parts of carbon nano tube, 15-35 parts of polyoxypropylene glycol, 20-40 parts of carbon black, 5-11 parts of naphthenic oil or aromatic oil, 2-6 parts of active agent, 2.5-6.5 parts of anti-aging agent, 1-3 parts of tackifying resin, 0.8-1.8 parts of accelerator and 1-3 parts of sulfur.
2. The carbon nanotube tread rubber of claim 1, wherein: the activator is zinc oxide and stearic acid, wherein the zinc oxide accounts for 1-3 parts, and the rest is stearic acid.
3. The carbon nanotube tread rubber of claim 2, wherein: the anti-aging agent is one of an anti-aging agent 4020, an anti-aging agent 3100 and an anti-aging agent 4010.
4. The carbon nanotube tread rubber of claim 3, wherein: the accelerant is one of accelerant M, accelerant DM, accelerant CZ and accelerant TMTD.
5. The method for preparing the carbon nanotube tread rubber according to any one of claims 1 to 4, wherein: 1) putting the No. 2 rubber, BR9000 butadiene rubber and SBR1500 butadiene styrene rubber into an internal mixer, uniformly mixing, then putting the carbon nano tube, the polyoxypropylene glycol, the activator, the anti-aging agent, the tackifying resin, the accelerator and the sulfur, continuously uniformly mixing, finally putting the naphthenic oil or the aromatic oil and the carbon black, and mixing to obtain a rubber material;
2) extruding the rubber material into sheets by a roller extruding extruder;
3) forming a green tire on a forming machine;
4) and vulcanizing the tire blank to obtain the tire.
6. The method for preparing the carbon nanotube tread rubber according to claim 5, wherein the method comprises the following steps: the temperature of the internal mixer is controlled to be less than 160 ℃, and the pressure is 0.75-0.85 MPa.
7. The method for preparing the carbon nanotube tread rubber according to claim 6, wherein the method comprises the following steps: the mixing time is 30-60 seconds after each feeding.
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