CN111100343A - Automobile tire rubber material with excellent sound absorption performance and preparation method thereof - Google Patents
Automobile tire rubber material with excellent sound absorption performance and preparation method thereof Download PDFInfo
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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
- C08L15/00—Compositions of rubber derivatives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
- C08C19/04—Oxidation
- C08C19/06—Epoxidation
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
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- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
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- C08K2201/011—Nanostructured additives
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- 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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Abstract
The invention provides an automobile tire rubber material with excellent sound absorption performance and a preparation method thereof, relating to the field of rubber materials and comprising the following components in parts by weight: 30-50 parts of natural rubber, 60-80 parts of epoxidized solution-polymerized styrene-butadiene rubber, 40-60 parts of butadiene rubber, 20-30 parts of high-strength methyl vinyl silicone rubber, 5-15 parts of gutta-percha grafted butyl methacrylate, 4-8 parts of polyisoprene, 5-10 parts of zinc oxide whisker, 5-10 parts of porous carbon nanotube, 5-10 parts of aluminum oxide, 10-15 parts of nano attapulgite, 30-40 parts of carbon black, 20-30 parts of organic modified white carbon black, 20-30 parts of nano calcium carbonate, 5-10 parts of microcrystalline paraffin, 5-10 parts of stearic acid, 1-3 parts of sulfur, 781-3 parts of homogenizing agent, 0.1-5 parts of accelerator and 1-5 parts of anti-aging agent The heat-conducting property is excellent, the market application prospect is very great, and the heat-conducting material can be popularized in a large area to reduce the noise caused by the automobile tires on the road surface.
Description
Technical Field
The invention relates to the field of rubber materials, in particular to an automobile tire rubber material with excellent sound absorption performance and a preparation method thereof.
Background
The wheel hub is usually arranged on a metal wheel hub, can support a vehicle body, buffers external impact, realizes contact with a road surface and ensures the driving performance of a vehicle. Tires are often used under complex and severe conditions, which are subjected to various deformations, loads, forces and high and low temperature effects during running, and therefore must have high load-bearing, traction and cushioning properties. At the same time, high abrasion resistance and flexibility resistance, and low rolling resistance and heat build-up are also required. Half of the world's rubber usage is for tire production, and the ability of tires to consume rubber is seen.
Most of the current automobile tire materials mainly comprise natural rubber or synthetic rubber, the combination property of the natural rubber is superior to that of the synthetic rubber, so the high-grade tire is generally made of the natural rubber, but the price fluctuation of the natural rubber is large, and different chemical materials, namely chemical additives, must be infiltrated into the rubber in order to reduce the cost and enable the rubber to have the properties required for manufacturing the tire. One of the important additives is carbon black, because carbon has special adsorption property and the carbon particles are well bonded with rubber molecules, so that the rubber has enhanced hardness, strength and wear resistance. Since carbon black is substantially equal to rubber, the primary material for a vehicle tire is actually a composite of rubber and carbon black.
At present, with the increasing popularity of automobiles along with the development of economy, the problem of tire noise, which is the noise generated by the interaction of the tires of running vehicles with the road surface, the interaction of the tires with air, and the deformation of the tires, is also increasing, and it is one of the two main sources of automobile noise. The causes and mechanisms of tire noise generation are complex, and all tire/road noise results from tire-road contact, tire deformation, and tire-air interaction, despite numerous factors that create sources of noise excitation. The rapid running of the tire and the severe friction with the road surface generate a large amount of 'humming' low-frequency noise, the noise is transmitted into the vehicle through an iron sheet at the lower part of a cabin, the noise is obviously stimulated to people, the tire is in a noise environment for a long time, the harm to the human body is very large, the fatigue feeling is enhanced, the dizziness feeling appears, the duration is long, the strength is high, the hearing is easy to be reduced, the nervous system can be damaged to different degrees, the tire is the most closely related to the noise of the tire, and how to reduce the noise by changing the material of the tire becomes the hotspot of the research of the automobile industry.
Chinese patent CN 108484990A discloses a formula and a preparation method of rubber for noise reduction and sound absorption tires, wherein the rubber formula mainly comprises the following components in parts by mass: 1-20 parts of natural rubber, 1-10 parts of graphene, 1-3 parts of a vulcanizing agent, 1-3 parts of an accelerator, 1-2 parts of nano aluminum oxide, 2-4 parts of an anti-aging agent, 1-3 parts of light magnesium oxide, 1-7 parts of a coupling agent and 2.5-10 parts of diatomite. The rubber prepared by the formula is applied to the surface layer of a conventional multilayer tire, so that the noise generated in the running process of the tire can be effectively reduced, and the effect of reducing disturbance to residents is achieved.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an automobile tire rubber material with excellent sound absorption performance and a preparation method thereof.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
an automobile tire rubber material with excellent sound absorption performance comprises the following components in parts by weight:
30-50 parts of natural rubber, 60-80 parts of epoxidized solution-polymerized styrene-butadiene rubber, 40-60 parts of butadiene rubber, 20-30 parts of high-strength methyl vinyl silicone rubber, 5-15 parts of gutta-percha grafted butyl methacrylate, 4-8 parts of polyisoprene, 5-10 parts of zinc oxide whisker, 5-10 parts of porous carbon nanotube, 5-10 parts of aluminum oxide, 10-15 parts of nano attapulgite, 30-40 parts of carbon black, 20-30 parts of organic modified white carbon black, 20-30 parts of nano calcium carbonate, 5-10 parts of microcrystalline paraffin, 5-10 parts of stearic acid, 1-3 parts of sulfur, 781-3 parts of homogenizing agent, 0.1-5 parts of accelerator and 1-5 parts of anti-aging agent.
Further, the paint comprises the following components in parts by weight:
50 parts of natural rubber, 70 parts of epoxidized solution-polymerized styrene-butadiene rubber, 45 parts of butadiene rubber, 28 parts of high-strength methyl vinyl silicone rubber, 12 parts of gutta-percha grafted butyl methacrylate, 4 parts of polyisoprene, 10 parts of zinc oxide whisker, 8 parts of porous carbon nanotube, 10 parts of aluminum oxide, 12 parts of nano attapulgite, 30 parts of carbon black, 20 parts of organic modified white carbon black, 20 parts of nano calcium carbonate, 5 parts of microcrystalline paraffin, 5 parts of stearic acid, 1 part of sulfur, 782 parts of a homogenizing agent A, 1 part of a promoter and 5 parts of an anti-aging agent.
Further, the paint comprises the following components in parts by weight:
40 parts of natural rubber, 80 parts of epoxidized solution-polymerized styrene-butadiene rubber, 40 parts of butadiene rubber, 25 parts of high-strength methyl vinyl silicone rubber, 10 parts of gutta-percha grafted butyl methacrylate, 5 parts of polyisoprene, 5 parts of zinc oxide whisker, 10 parts of porous carbon nanotube, 10 parts of aluminum oxide, 12 parts of nano attapulgite, 30 parts of carbon black, 20 parts of organic modified white carbon black, 20 parts of nano calcium carbonate, 6 parts of microcrystalline paraffin, 10 parts of stearic acid, 3 parts of sulfur, 3 parts of a homogenizing agent A781, 4 parts of an accelerator and 5 parts of an anti-aging agent.
Further, the preparation method of the epoxidized solution polymerized styrene-butadiene rubber comprises the following steps:
crushing solution polymerized styrene-butadiene rubber into particles, adding the particles into cyclohexane, stirring and dissolving, adding formic acid and tween, mechanically stirring for 20-30min at 50-100r/min, dropwise adding hydrogen peroxide, heating to reflux reaction after dropwise adding, naturally cooling to room temperature after reaction, increasing the rotating speed to 200-400r/min, dropwise adding a sodium carbonate solution, separating out an organic phase after dropwise adding, washing to neutrality with water, drying with anhydrous sodium sulfate, adding anhydrous ethanol, separating out solids in the process of concentration under reduced pressure, performing suction filtration, and drying under reduced pressure.
Further, the mass concentration of the sodium carbonate solution is 1-5%.
Further, the preparation method of gutta percha grafted butyl methacrylate comprises the following steps:
adding gutta-percha into toluene, stirring and dissolving, dropwise adding butyl methacrylate, adding dibenzoyl peroxide into the toluene to prepare an initiation liquid, adding half volume of the initiation liquid after dropwise adding of the butyl methacrylate, mechanically stirring at 500r/min for reaction for 1-2h, adding the rest of the initiation liquid, continuing to react for 3-5h, pouring the reaction liquid into absolute ethyl alcohol after the reaction is finished, slowly stirring to separate out solids, filtering, and drying under reduced pressure.
Further, the priming solution is prepared from dibenzoyl peroxide and toluene according to the mass ratio of 1: 20-30.
Further, the accelerator is formed by compounding an accelerator CZ and an accelerator DPG according to the mass ratio of 2: 1.
Furthermore, the anti-aging agent is formed by compounding an anti-aging agent 264 and an anti-aging agent 4020 in a mass ratio of 1: 1-10.
The preparation method of the automobile tire rubber material with excellent sound absorption performance comprises the following specific steps:
firstly plasticating natural rubber on an open mill, then adding epoxidized solution polymerized styrene-butadiene rubber, high-strength methyl vinyl silicone rubber, eucommia bark glue grafted butyl methacrylate, polyisoprene, zinc oxide whiskers, porous carbon nanotubes, aluminum oxide, nano attapulgite, carbon black, organic modified white carbon black, nano calcium carbonate, microcrystalline paraffin, stearic acid, a homogenizing agent A78 and an anti-aging agent, adding and mixing, finally adding sulfur and an accelerator, adjusting the roller distance to be small, beating a triangular bag for 5 times after the rubber material is thinned, adjusting the roller distance to be large, discharging the rubber material, standing for 12h, then re-smelting on the open mill, discharging the rubber material, vulcanizing the rubber piece on a flat vulcanizing machine, wherein the vulcanization condition is 140 plus 180 ℃, and the vulcanization pressure is 8-12 MPa.
(III) advantageous effects
The invention provides an automobile tire rubber material with excellent sound absorption performance and a preparation method thereof, and the automobile tire rubber material has the following beneficial effects:
although natural rubber has a plurality of excellent properties and is always an important raw material of automobile tires, more and more tire enterprises begin to reduce the use of the natural rubber due to the limitation of performance cost and price of the natural rubber, the epoxidized solution-polymerized styrene-butadiene rubber of the invention introduces epoxy groups into the solution-polymerized styrene-butadiene rubber, can increase the polarity of molecular chains of the solution-polymerized styrene-butadiene rubber, enhance the interaction force between the solution-polymerized styrene-butadiene rubber and reinforcing fillers, and improve the compatibility between a solution-polymerized styrene-butadiene rubber matrix and the reinforcing fillers, the high-strength methyl vinyl silicone rubber is copolymerized by dimethyl siloxane and a small amount of vinyl siloxane, the introduction of the high-strength methyl vinyl silicone rubber improves the vulcanization process and the finished product performance of rubber materials, particularly the heat aging resistance and the high-temperature compression deformation of the tires are greatly improved, the eucommia rubber is the only renewable special natural, it can be made into low-temperature thermoplastic material, thermoelastic material and elastic material, and at the same time, because of its good blending property, integration property and processability, it can prolong service life of tyre and reduce cost when added into rubber material, but because the gutta-percha is crystallized, the prior rubber processing equipment and technique are difficult to realize good dispersion, so that the performance is unstable, the invention adopts the butyl methacrylate to graft and modify the gutta-percha, destroys the regularity of the molecular chain arrangement of the gutta-percha, reduces the crystallinity and even completely destroys the crystal structure of the gutta-percha, thereby reducing crystallization property, improving dispersion uniformity, improving sound absorption property of the tire by adding the porous carbon nano tube, having excellent mechanical property, and the sound absorption and heat conduction performance is excellent, the market application prospect is very great, and the sound absorption and heat conduction material can be popularized in a large area to reduce noise caused by road automobile tires.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
an automobile tire rubber material with excellent sound absorption performance comprises the following components in parts by weight:
50 parts of natural rubber, 70 parts of epoxidized solution-polymerized styrene-butadiene rubber, 45 parts of butadiene rubber, 28 parts of high-strength methyl vinyl silicone rubber, 12 parts of eucommia rubber grafted butyl methacrylate, 4 parts of polyisoprene, 10 parts of zinc oxide whiskers, 8 parts of porous carbon nanotubes, 10 parts of aluminum oxide, 12 parts of nano attapulgite, 30 parts of carbon black, 20 parts of organic modified white carbon black, 20 parts of nano calcium carbonate, 5 parts of microcrystalline paraffin, 5 parts of stearic acid, 1 part of sulfur, 782 parts of a homogenizing agent, CZ (CZ) promoter and DPG promoter, 1 part of an antioxidant, and 5 parts of an antioxidant which is compounded by compounding the antioxidant 264 and the antioxidant 4020 according to the mass ratio of 1: 5.
The preparation method of the epoxidized solution polymerized styrene-butadiene rubber comprises the following steps:
crushing solution polymerized styrene butadiene rubber into particles, adding the particles into cyclohexane, stirring and dissolving, adding formic acid and tween, mechanically stirring at 80r/min for 20min, dropwise adding hydrogen peroxide, heating to reflux reaction after dropwise adding, naturally cooling to room temperature after reaction, increasing the rotating speed to 400r/min, dropwise adding a sodium carbonate solution with the mass concentration of 2%, separating out an organic phase after dropwise adding, washing to neutrality, drying with anhydrous sodium sulfate, adding anhydrous ethanol, separating out solids in the process of reduced pressure concentration, performing suction filtration, and drying under reduced pressure.
The preparation method of the eucommia ulmoides gum grafted butyl methacrylate comprises the following steps:
adding gutta-percha into toluene, stirring and dissolving, dropwise adding butyl methacrylate, preparing the dibenzoyl peroxide and the toluene into an initiation liquid according to the mass ratio of 1:30, adding half volume of the initiation liquid after the dropwise adding of the butyl methacrylate is finished, mechanically stirring and reacting for 1h at 400r/min, then adding the rest initiation liquid, continuing to react for 5h, pouring the reaction liquid into absolute ethyl alcohol after the reaction is finished, slowly stirring to separate out a solid, performing suction filtration, and drying under reduced pressure.
The preparation method of the automobile tire rubber material with excellent sound absorption performance comprises the following specific steps:
firstly, plasticating natural rubber on an open mill, then adding epoxidized solution polymerized styrene-butadiene rubber, high-strength methyl vinyl silicone rubber, eucommia bark glue grafted butyl methacrylate, polyisoprene, zinc oxide whiskers, porous carbon nanotubes, aluminum oxide, nano attapulgite, carbon black, organic modified white carbon black, nano calcium carbonate, microcrystalline paraffin, stearic acid, a homogenizing agent A78 and an anti-aging agent, adding and mixing, finally adding sulfur and an accelerator, adjusting the roller distance to be small, beating a triangular bag for 5 times after the rubber material is thinned, adjusting the roller distance to be large, discharging, standing the rubber material for 12h, then re-refining on the open mill, discharging, vulcanizing a test piece on a flat vulcanizing machine, wherein the vulcanization condition is 160 ℃, and the vulcanization pressure is 10 MPa.
Example 2:
an automobile tire rubber material with excellent sound absorption performance comprises the following components in parts by weight:
40 parts of natural rubber, 80 parts of epoxidized solution-polymerized styrene-butadiene rubber, 40 parts of butadiene rubber, 25 parts of high-strength methyl vinyl silicone rubber, 10 parts of gutta-percha grafted butyl methacrylate, 5 parts of polyisoprene, 5 parts of zinc oxide whisker, 10 parts of porous carbon nanotube, 10 parts of aluminum oxide, 12 parts of nano attapulgite, 30 parts of carbon black, 20 parts of organic modified white carbon black, 20 parts of nano calcium carbonate, 6 parts of microcrystalline paraffin, 10 parts of stearic acid, 3 parts of sulfur, 3 parts of a homogenizing agent A781, 4 parts of a promoter CZ and 5 parts of a promoter DPG compounded by the promoter, and 5 parts of an anti-aging agent formed by compounding the anti-aging agent 264 and the anti-aging agent 4020 according to the mass ratio of 1: 1.
The preparation method of the epoxidized solution polymerized styrene-butadiene rubber comprises the following steps:
crushing solution polymerized styrene butadiene rubber into particles, adding the particles into cyclohexane, stirring and dissolving, adding formic acid and tween, mechanically stirring at 50r/min for 30min, dropwise adding hydrogen peroxide, heating to reflux reaction after dropwise adding, naturally cooling to room temperature after reaction, increasing the rotating speed to 200r/min, dropwise adding a sodium carbonate solution with the mass concentration of 2%, separating out an organic phase after dropwise adding, washing to neutrality, drying with anhydrous sodium sulfate, adding anhydrous ethanol, separating out solids in the process of reduced pressure concentration, performing suction filtration, and drying under reduced pressure.
The preparation method of the eucommia ulmoides gum grafted butyl methacrylate comprises the following steps:
adding gutta-percha into toluene, stirring and dissolving, dropwise adding butyl methacrylate, preparing the dibenzoyl peroxide and the toluene into an initiation liquid according to the mass ratio of 1:20, adding half volume of the initiation liquid after the dropwise adding of the butyl methacrylate is finished, mechanically stirring at 500r/min for reaction for 1 hour, then adding the rest initiation liquid, continuing the reaction for 5 hours, pouring the reaction liquid into absolute ethyl alcohol after the reaction is finished, slowly stirring to separate out a solid, performing suction filtration, and drying under reduced pressure.
The preparation method of the automobile tire rubber material with excellent sound absorption performance comprises the following specific steps:
firstly, plasticating natural rubber on an open mill, then adding epoxidized solution polymerized styrene-butadiene rubber, high-strength methyl vinyl silicone rubber, eucommia bark glue grafted butyl methacrylate, polyisoprene, zinc oxide whiskers, porous carbon nanotubes, aluminum oxide, nano attapulgite, carbon black, organic modified white carbon black, nano calcium carbonate, microcrystalline paraffin, stearic acid, a homogenizing agent A78 and an anti-aging agent, adding and mixing, finally adding sulfur and an accelerator, adjusting the roller distance to be small, beating a triangular bag for 5 times after the rubber material is thinned, adjusting the roller distance to be large, discharging, standing the rubber material for 12h, then re-refining on the open mill, discharging, vulcanizing a test piece on a flat vulcanizing machine, wherein the vulcanizing condition is 160 ℃, and the vulcanizing pressure is 8 MPa.
Example 3:
an automobile tire rubber material with excellent sound absorption performance comprises the following components in parts by weight:
30 parts of natural rubber, 60 parts of epoxidized solution-polymerized styrene-butadiene rubber, 40 parts of butadiene rubber, 30 parts of high-strength methyl vinyl silicone rubber, 10 parts of gutta-percha grafted butyl methacrylate, 5 parts of polyisoprene, 5 parts of zinc oxide whisker, 10 parts of porous carbon nanotube, 8 parts of aluminum oxide, 10 parts of nano attapulgite, 40 parts of carbon black, 30 parts of organic modified white carbon black, 20 parts of nano calcium carbonate, 10 parts of microcrystalline paraffin, 5 parts of stearic acid, 1 part of sulfur, 1 part of homogenizing agent A781, 2 parts of promoter CZ and 5 parts of promoter DPG which are compounded according to the mass ratio of 2:1, and 5 parts of antioxidant which is compounded by antioxidant 264 and antioxidant 4020 according to the mass ratio of 1: 2.
The preparation method of the epoxidized solution polymerized styrene-butadiene rubber comprises the following steps:
crushing solution polymerized styrene butadiene rubber into particles, adding the particles into cyclohexane, stirring and dissolving, adding formic acid and tween, mechanically stirring at 50r/min for 20min, dropwise adding hydrogen peroxide, heating to reflux reaction after dropwise adding, naturally cooling to room temperature after reaction, increasing the rotating speed to 400r/min, dropwise adding a sodium carbonate solution with the mass concentration of 1%, separating out an organic phase after dropwise adding, washing to neutrality, drying with anhydrous sodium sulfate, adding anhydrous ethanol, separating out solids in the process of reduced pressure concentration, performing suction filtration, and drying under reduced pressure.
The preparation method of the eucommia ulmoides gum grafted butyl methacrylate comprises the following steps:
adding gutta-percha into toluene, stirring and dissolving, dropwise adding butyl methacrylate, preparing the dibenzoyl peroxide and the toluene into an initiation liquid according to the mass ratio of 1:20, adding half volume of the initiation liquid after the dropwise adding of the butyl methacrylate is finished, mechanically stirring at 500r/min for reaction for 1 hour, then adding the rest initiation liquid, continuing the reaction for 5 hours, pouring the reaction liquid into absolute ethyl alcohol after the reaction is finished, slowly stirring to separate out a solid, performing suction filtration, and drying under reduced pressure.
The preparation method of the automobile tire rubber material with excellent sound absorption performance comprises the following specific steps:
firstly, plasticating natural rubber on an open mill, then adding epoxidized solution polymerized styrene-butadiene rubber, high-strength methyl vinyl silicone rubber, eucommia bark glue grafted butyl methacrylate, polyisoprene, zinc oxide whiskers, porous carbon nanotubes, aluminum oxide, nano attapulgite, carbon black, organic modified white carbon black, nano calcium carbonate, microcrystalline paraffin, stearic acid, a homogenizing agent A78 and an anti-aging agent, adding and mixing, finally adding sulfur and an accelerator, adjusting the roller distance to be small, beating a triangular bag for 5 times after the rubber material is thinned, adjusting the roller distance to be large, discharging, standing the rubber material for 12h, then re-refining on the open mill, discharging, vulcanizing a test piece on a flat vulcanizing machine, wherein the vulcanizing condition is 180 ℃, and the vulcanizing pressure is 12 MPa.
Example 4:
an automobile tire rubber material with excellent sound absorption performance comprises the following components in parts by weight:
30 parts of natural rubber, 60 parts of epoxidized solution-polymerized styrene-butadiene rubber, 60 parts of butadiene rubber, 20 parts of high-strength methyl vinyl silicone rubber, 15 parts of gutta-percha grafted butyl methacrylate, 4 parts of polyisoprene, 5 parts of zinc oxide whisker, 5 parts of porous carbon nanotube, 10 parts of aluminum oxide, 12 parts of nano attapulgite, 40 parts of carbon black, 20 parts of organic modified white carbon black, 20 parts of nano calcium carbonate, 10 parts of microcrystalline paraffin, 5 parts of stearic acid, 1 part of sulfur, 782 parts of a homogenizing agent, CZ (CZ) as a promoter and 2 parts of an antioxidant DPG compounded by a promoter, 264 as an antioxidant and 4020 as an antioxidant in a mass ratio of 1: 5.
The preparation method of the epoxidized solution polymerized styrene-butadiene rubber comprises the following steps:
crushing solution polymerized styrene butadiene rubber into particles, adding the particles into cyclohexane, stirring and dissolving, adding formic acid and tween, mechanically stirring at 50r/min for 30min, dropwise adding hydrogen peroxide, heating to reflux reaction after dropwise adding, naturally cooling to room temperature after reaction, increasing the rotating speed to 400r/min, dropwise adding a sodium carbonate solution with the mass concentration of 2%, separating out an organic phase after dropwise adding, washing to neutrality, drying with anhydrous sodium sulfate, adding anhydrous ethanol, separating out solids in the process of reduced pressure concentration, performing suction filtration, and drying under reduced pressure.
The preparation method of the eucommia ulmoides gum grafted butyl methacrylate comprises the following steps:
adding gutta-percha into toluene, stirring and dissolving, dropwise adding butyl methacrylate, preparing the dibenzoyl peroxide and the toluene into an initiation liquid according to the mass ratio of 1:20, adding half volume of the initiation liquid after the dropwise adding of the butyl methacrylate is finished, mechanically stirring and reacting for 1h at 300r/min, then adding the rest initiation liquid, continuing to react for 4h, pouring the reaction liquid into absolute ethyl alcohol after the reaction is finished, slowly stirring to separate out a solid, performing suction filtration, and drying under reduced pressure.
The preparation method of the automobile tire rubber material with excellent sound absorption performance comprises the following specific steps:
firstly, plasticating natural rubber on an open mill, then adding epoxidized solution polymerized styrene-butadiene rubber, high-strength methyl vinyl silicone rubber, eucommia bark glue grafted butyl methacrylate, polyisoprene, zinc oxide whiskers, porous carbon nanotubes, aluminum oxide, nano attapulgite, carbon black, organic modified white carbon black, nano calcium carbonate, microcrystalline paraffin, stearic acid, a homogenizing agent A78 and an anti-aging agent, adding and mixing, finally adding sulfur and an accelerator, adjusting the roller distance to be small, beating a triangular bag for 5 times after the rubber material is thinned, adjusting the roller distance to be large, discharging, standing the rubber material for 12h, then re-refining on the open mill, discharging, vulcanizing a test piece on a flat vulcanizing machine, wherein the vulcanizing condition is 140 ℃, and the vulcanizing pressure is 8 MPa.
Example 5:
an automobile tire rubber material with excellent sound absorption performance comprises the following components in parts by weight:
50 parts of natural rubber, 80 parts of epoxidized solution-polymerized styrene-butadiene rubber, 40 parts of butadiene rubber, 20 parts of high-strength methyl vinyl silicone rubber, 10 parts of gutta-percha grafted butyl methacrylate, 4 parts of polyisoprene, 5 parts of zinc oxide whisker, 5 parts of porous carbon nanotube, 10 parts of aluminum oxide, 10 parts of nano attapulgite, 30 parts of carbon black, 25 parts of organic modified white carbon black, 30 parts of nano calcium carbonate, 10 parts of microcrystalline paraffin, 5 parts of stearic acid, 1 part of sulfur, 1 part of homogenizing agent A781, promoter CZ and promoter DPG, 0.1 part of promoter compounded by a mass ratio of 2:1, and 2 parts of age inhibitor compounded by age inhibitor 264 and age inhibitor 4020 by a mass ratio of 1: 8.
The preparation method of the epoxidized solution polymerized styrene-butadiene rubber comprises the following steps:
crushing solution polymerized styrene butadiene rubber into particles, adding the particles into cyclohexane, stirring and dissolving, adding formic acid and tween, mechanically stirring at 50r/min for 30min, dropwise adding hydrogen peroxide, heating to reflux reaction after dropwise adding, naturally cooling to room temperature after reaction, increasing the rotating speed to 400r/min, dropwise adding a sodium carbonate solution with the mass concentration of 5%, separating out an organic phase after dropwise adding, washing to neutrality, drying with anhydrous sodium sulfate, adding anhydrous ethanol, separating out solids in the process of reduced pressure concentration, performing suction filtration, and drying under reduced pressure.
The preparation method of the eucommia ulmoides gum grafted butyl methacrylate comprises the following steps:
adding gutta-percha into toluene, stirring and dissolving, dropwise adding butyl methacrylate, preparing the dibenzoyl peroxide and the toluene into an initiation liquid according to the mass ratio of 1:20, adding half volume of the initiation liquid after the dropwise adding of the butyl methacrylate is finished, mechanically stirring at 500r/min for reaction for 1 hour, then adding the rest initiation liquid, continuing the reaction for 5 hours, pouring the reaction liquid into absolute ethyl alcohol after the reaction is finished, slowly stirring to separate out a solid, performing suction filtration, and drying under reduced pressure.
The preparation method of the automobile tire rubber material with excellent sound absorption performance comprises the following specific steps:
firstly, plasticating natural rubber on an open mill, then adding epoxidized solution polymerized styrene-butadiene rubber, high-strength methyl vinyl silicone rubber, eucommia bark glue grafted butyl methacrylate, polyisoprene, zinc oxide whiskers, porous carbon nanotubes, aluminum oxide, nano attapulgite, carbon black, organic modified white carbon black, nano calcium carbonate, microcrystalline paraffin, stearic acid, a homogenizing agent A78 and an anti-aging agent, adding and mixing, finally adding sulfur and an accelerator, adjusting the roller distance to be small, beating a triangular bag for 5 times after the rubber material is thinned, adjusting the roller distance to be large, discharging, standing the rubber material for 12h, then re-refining on the open mill, discharging, vulcanizing a test piece on a flat vulcanizing machine, wherein the vulcanizing condition is 150 ℃, and the vulcanizing pressure is 10 MPa.
Example 6:
an automobile tire rubber material with excellent sound absorption performance comprises the following components in parts by weight:
30 parts of natural rubber, 80 parts of epoxidized solution-polymerized styrene-butadiene rubber, 50 parts of butadiene rubber, 25 parts of high-strength methyl vinyl silicone rubber, 10 parts of gutta-percha grafted butyl methacrylate, 5 parts of polyisoprene, 10 parts of zinc oxide whisker, 8 parts of porous carbon nanotube, 5 parts of alumina, 10 parts of nano attapulgite, 30 parts of carbon black, 22 parts of organic modified white carbon black, 30 parts of nano calcium carbonate, 10 parts of microcrystalline paraffin, 8 parts of stearic acid, 1 part of sulfur, 1 part of homogenizing agent A781, 2 parts of promoter CZ and promoter DPG which are compounded according to the mass ratio of 2:1, and 5 parts of anti-aging agent which is compounded by anti-aging agent 264 and anti-aging agent 4020 according to the mass ratio of 1: 4.
The preparation method of the epoxidized solution polymerized styrene-butadiene rubber comprises the following steps:
crushing solution polymerized styrene butadiene rubber into particles, adding the particles into cyclohexane, stirring and dissolving, adding formic acid and tween, mechanically stirring at 50r/min for 20min, dropwise adding hydrogen peroxide, heating to reflux reaction after dropwise adding, naturally cooling to room temperature after reaction, increasing the rotating speed to 200r/min, dropwise adding a sodium carbonate solution with the mass concentration of 1%, separating out an organic phase after dropwise adding, washing to neutrality, drying with anhydrous sodium sulfate, adding anhydrous ethanol, separating out solids in the process of reduced pressure concentration, performing suction filtration, and drying under reduced pressure.
The preparation method of the eucommia ulmoides gum grafted butyl methacrylate comprises the following steps:
adding gutta-percha into toluene, stirring and dissolving, dropwise adding butyl methacrylate, preparing the dibenzoyl peroxide and the toluene into an initiation liquid according to the mass ratio of 1:20, adding half volume of the initiation liquid after the dropwise adding of the butyl methacrylate is finished, mechanically stirring and reacting for 1h at 400r/min, then adding the rest initiation liquid, continuing to react for 5h, pouring the reaction liquid into absolute ethyl alcohol after the reaction is finished, slowly stirring to separate out a solid, performing suction filtration, and drying under reduced pressure.
The preparation method of the automobile tire rubber material with excellent sound absorption performance comprises the following specific steps:
firstly, plasticating natural rubber on an open mill, then adding epoxidized solution polymerized styrene-butadiene rubber, high-strength methyl vinyl silicone rubber, eucommia bark glue grafted butyl methacrylate, polyisoprene, zinc oxide whiskers, porous carbon nanotubes, aluminum oxide, nano attapulgite, carbon black, organic modified white carbon black, nano calcium carbonate, microcrystalline paraffin, stearic acid, a homogenizing agent A78 and an anti-aging agent, adding and mixing, finally adding sulfur and an accelerator, adjusting the roller distance to be small, beating a triangular bag for 5 times after the rubber material is thinned, adjusting the roller distance to be large, discharging, standing the rubber material for 12h, then re-refining on the open mill, discharging, vulcanizing a test piece on a flat vulcanizing machine, wherein the vulcanizing condition is 150 ℃, and the vulcanizing pressure is 10 MPa.
Example 7:
an automobile tire rubber material with excellent sound absorption performance comprises the following components in parts by weight:
50 parts of natural rubber, 70 parts of epoxidized solution-polymerized styrene-butadiene rubber, 40 parts of butadiene rubber, 20 parts of high-strength methyl vinyl silicone rubber, 10 parts of gutta-percha grafted butyl methacrylate, 5 parts of polyisoprene, 10 parts of zinc oxide whisker, 5 parts of porous carbon nanotube, 5 parts of alumina, 10 parts of nano attapulgite, 35 parts of carbon black, 30 parts of organic modified white carbon black, 20 parts of nano calcium carbonate, 8 parts of microcrystalline paraffin, 5 parts of stearic acid, 2 parts of sulfur, 2 parts of a homogenizing agent A781, 2 parts of a promoter CZ and 2 parts of a promoter DPG compounded by a promoter in a mass ratio of 2:1, and 2 parts of an anti-aging agent formed by compounding an anti-aging agent 264 and an anti-aging agent 4020 in a mass ratio of 1: 5.
The preparation method of the epoxidized solution polymerized styrene-butadiene rubber comprises the following steps:
crushing solution polymerized styrene butadiene rubber into particles, adding the particles into cyclohexane, stirring and dissolving, adding formic acid and tween, mechanically stirring at 100r/min for 30min, dropwise adding hydrogen peroxide, heating to reflux reaction after dropwise adding, naturally cooling to room temperature after reaction, increasing the rotating speed to 200r/min, dropwise adding a sodium carbonate solution with the mass concentration of 3%, separating out an organic phase after dropwise adding, washing to neutrality, drying with anhydrous sodium sulfate, adding anhydrous ethanol, separating out solids in the process of reduced pressure concentration, performing suction filtration, and drying under reduced pressure.
The preparation method of the eucommia ulmoides gum grafted butyl methacrylate comprises the following steps:
adding gutta-percha into toluene, stirring and dissolving, dropwise adding butyl methacrylate, preparing the dibenzoyl peroxide and the toluene into an initiation liquid according to the mass ratio of 1:20, adding half volume of the initiation liquid after the dropwise adding of the butyl methacrylate is finished, mechanically stirring and reacting for 1h at 400r/min, then adding the rest initiation liquid, continuing to react for 4h, pouring the reaction liquid into absolute ethyl alcohol after the reaction is finished, slowly stirring to separate out a solid, performing suction filtration, and drying under reduced pressure.
The preparation method of the automobile tire rubber material with excellent sound absorption performance comprises the following specific steps:
firstly, plasticating natural rubber on an open mill, then adding epoxidized solution polymerized styrene-butadiene rubber, high-strength methyl vinyl silicone rubber, eucommia bark glue grafted butyl methacrylate, polyisoprene, zinc oxide whiskers, porous carbon nanotubes, aluminum oxide, nano attapulgite, carbon black, organic modified white carbon black, nano calcium carbonate, microcrystalline paraffin, stearic acid, a homogenizing agent A78 and an anti-aging agent, adding and mixing, finally adding sulfur and an accelerator, adjusting the roller distance to be small, beating a triangular bag for 5 times after the rubber material is thinned, adjusting the roller distance to be large, discharging, standing the rubber material for 12h, then re-refining on the open mill, discharging, vulcanizing a test piece on a flat vulcanizing machine, wherein the vulcanization condition is 160 ℃, and the vulcanization pressure is 10 MPa.
Example 8:
an automobile tire rubber material with excellent sound absorption performance comprises the following components in parts by weight:
50 parts of natural rubber, 60 parts of epoxidized solution-polymerized styrene-butadiene rubber, 60 parts of butadiene rubber, 20 parts of high-strength methyl vinyl silicone rubber, 5 parts of gutta-percha grafted butyl methacrylate, 4 parts of polyisoprene, 5 parts of zinc oxide whisker, 10 parts of porous carbon nanotube, 6 parts of aluminum oxide, 12 parts of nano attapulgite, 40 parts of carbon black, 25 parts of organic modified white carbon black, 20 parts of nano calcium carbonate, 10 parts of microcrystalline paraffin, 5 parts of stearic acid, 2 parts of sulfur, 5 parts of a homogenizing agent A781, 5 parts of a promoter CZ and 5 parts of a promoter DPG compounded by a promoter according to the mass ratio of 2:1, and 5 parts of an anti-aging agent compounded by an anti-aging agent 264 and an anti-aging agent 4020 according to the mass ratio of 1: 1.
The preparation method of the epoxidized solution polymerized styrene-butadiene rubber comprises the following steps:
crushing solution polymerized styrene butadiene rubber into particles, adding the particles into cyclohexane, stirring and dissolving, adding formic acid and tween, mechanically stirring at 80r/min for 30min, dropwise adding hydrogen peroxide, heating to reflux reaction after dropwise adding, naturally cooling to room temperature after reaction, increasing the rotating speed to 400r/min, dropwise adding a sodium carbonate solution with the mass concentration of 5%, separating out an organic phase after dropwise adding, washing to neutrality, drying with anhydrous sodium sulfate, adding anhydrous ethanol, separating out solids in the process of reduced pressure concentration, performing suction filtration, and drying under reduced pressure.
The preparation method of the eucommia ulmoides gum grafted butyl methacrylate comprises the following steps:
adding gutta-percha into toluene, stirring and dissolving, dropwise adding butyl methacrylate, preparing the dibenzoyl peroxide and the toluene into an initiation liquid according to the mass ratio of 1:20, adding half volume of the initiation liquid after the dropwise adding of the butyl methacrylate is finished, mechanically stirring and reacting for 1h at 300r/min, then adding the rest initiation liquid, continuing to react for 5h, pouring the reaction liquid into absolute ethyl alcohol after the reaction is finished, slowly stirring to separate out a solid, performing suction filtration, and drying under reduced pressure.
The preparation method of the automobile tire rubber material with excellent sound absorption performance comprises the following specific steps:
firstly, plasticating natural rubber on an open mill, then adding epoxidized solution polymerized styrene-butadiene rubber, high-strength methyl vinyl silicone rubber, eucommia bark glue grafted butyl methacrylate, polyisoprene, zinc oxide whiskers, porous carbon nanotubes, aluminum oxide, nano attapulgite, carbon black, organic modified white carbon black, nano calcium carbonate, microcrystalline paraffin, stearic acid, a homogenizing agent A78 and an anti-aging agent, adding and mixing, finally adding sulfur and an accelerator, adjusting the roller distance to be small, beating a triangular bag for 5 times after the rubber material is thinned, adjusting the roller distance to be large, discharging, standing the rubber material for 12h, then re-refining on the open mill, discharging, vulcanizing a test piece on a flat vulcanizing machine, wherein the vulcanizing condition is 140 ℃, and the vulcanizing pressure is 8 MPa.
The following table 1 shows the performance test results of the automobile tire rubber materials of examples 1 to 3 of the present invention:
table 1:
as shown in the table 1, the automobile tire rubber material has excellent mechanical properties, excellent sound absorption and heat conduction properties, great market application prospect, and can be popularized in a large area to reduce noise caused by road automobile tires.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The automobile tire rubber material with excellent sound absorption performance is characterized by comprising the following components in parts by weight:
30-50 parts of natural rubber, 60-80 parts of epoxidized solution-polymerized styrene-butadiene rubber, 40-60 parts of butadiene rubber, 20-30 parts of high-strength methyl vinyl silicone rubber, 5-15 parts of gutta-percha grafted butyl methacrylate, 4-8 parts of polyisoprene, 5-10 parts of zinc oxide whisker, 5-10 parts of porous carbon nanotube, 5-10 parts of aluminum oxide, 10-15 parts of nano attapulgite, 30-40 parts of carbon black, 20-30 parts of organic modified white carbon black, 20-30 parts of nano calcium carbonate, 5-10 parts of microcrystalline paraffin, 5-10 parts of stearic acid, 1-3 parts of sulfur, 781-3 parts of homogenizing agent, 0.1-5 parts of accelerator and 1-5 parts of anti-aging agent.
2. The automobile tire rubber material with excellent sound absorption performance as claimed in claim 1, is characterized by comprising the following components in parts by weight:
50 parts of natural rubber, 70 parts of epoxidized solution-polymerized styrene-butadiene rubber, 45 parts of butadiene rubber, 28 parts of high-strength methyl vinyl silicone rubber, 12 parts of gutta-percha grafted butyl methacrylate, 4 parts of polyisoprene, 10 parts of zinc oxide whisker, 8 parts of porous carbon nanotube, 10 parts of aluminum oxide, 12 parts of nano attapulgite, 30 parts of carbon black, 20 parts of organic modified white carbon black, 20 parts of nano calcium carbonate, 5 parts of microcrystalline paraffin, 5 parts of stearic acid, 1 part of sulfur, 782 parts of a homogenizing agent A, 1 part of a promoter and 5 parts of an anti-aging agent.
3. The automobile tire rubber material with excellent sound absorption performance as claimed in claim 1, is characterized by comprising the following components in parts by weight:
40 parts of natural rubber, 80 parts of epoxidized solution-polymerized styrene-butadiene rubber, 40 parts of butadiene rubber, 25 parts of high-strength methyl vinyl silicone rubber, 10 parts of gutta-percha grafted butyl methacrylate, 5 parts of polyisoprene, 5 parts of zinc oxide whisker, 10 parts of porous carbon nanotube, 10 parts of aluminum oxide, 12 parts of nano attapulgite, 30 parts of carbon black, 20 parts of organic modified white carbon black, 20 parts of nano calcium carbonate, 6 parts of microcrystalline paraffin, 10 parts of stearic acid, 3 parts of sulfur, 3 parts of a homogenizing agent A781, 4 parts of an accelerator and 5 parts of an anti-aging agent.
4. The automobile tire rubber material with excellent sound absorption performance of claim 1, wherein the epoxidized solution-polymerized styrene-butadiene rubber is prepared by the following method:
crushing solution polymerized styrene-butadiene rubber into particles, adding the particles into cyclohexane, stirring and dissolving, adding formic acid and tween, mechanically stirring for 20-30min at 50-100r/min, dropwise adding hydrogen peroxide, heating to reflux reaction after dropwise adding, naturally cooling to room temperature after reaction, increasing the rotating speed to 200-400r/min, dropwise adding a sodium carbonate solution, separating out an organic phase after dropwise adding, washing to neutrality with water, drying with anhydrous sodium sulfate, adding anhydrous ethanol, separating out solids in the process of concentration under reduced pressure, performing suction filtration, and drying under reduced pressure.
5. The automobile tire rubber material with excellent sound absorption performance as claimed in claim 4, wherein the mass concentration of the sodium carbonate solution is 1-5%.
6. The automobile tire rubber material with excellent sound absorption performance as claimed in claim 1, wherein the preparation method of the gutta percha grafted butyl methacrylate is as follows:
adding gutta-percha into toluene, stirring and dissolving, dropwise adding butyl methacrylate, adding dibenzoyl peroxide into the toluene to prepare an initiation liquid, adding half volume of the initiation liquid after dropwise adding of the butyl methacrylate, mechanically stirring at 500r/min for reaction for 1-2h, adding the rest of the initiation liquid, continuing to react for 3-5h, pouring the reaction liquid into absolute ethyl alcohol after the reaction is finished, slowly stirring to separate out solids, filtering, and drying under reduced pressure.
7. The automobile tire rubber material with excellent sound absorption performance as claimed in claim 6, wherein the priming solution is prepared from dibenzoyl peroxide and toluene according to a mass ratio of 1: 20-30.
8. The automobile tire rubber material with excellent sound absorption performance as claimed in claim 1, wherein the accelerator is formed by compounding an accelerator CZ and an accelerator DPG according to a mass ratio of 2: 1.
9. The automobile tire rubber material with excellent sound absorption performance as claimed in claim 1, wherein the anti-aging agent is formed by compounding an anti-aging agent 264 and an anti-aging agent 4020 in a mass ratio of 1: 1-10.
10. The preparation method of the automobile tire rubber material with excellent sound absorption performance according to any one of claims 1 to 9, is characterized by comprising the following steps:
firstly plasticating natural rubber on an open mill, then adding epoxidized solution polymerized styrene-butadiene rubber, high-strength methyl vinyl silicone rubber, eucommia bark glue grafted butyl methacrylate, polyisoprene, zinc oxide whiskers, porous carbon nanotubes, aluminum oxide, nano attapulgite, carbon black, organic modified white carbon black, nano calcium carbonate, microcrystalline paraffin, stearic acid, a homogenizing agent A78 and an anti-aging agent, adding and mixing, finally adding sulfur and an accelerator, adjusting the roller distance to be small, beating a triangular bag for 5 times after the rubber material is thinned, adjusting the roller distance to be large, discharging the rubber material, standing for 12h, then re-smelting on the open mill, discharging the rubber material, vulcanizing the rubber piece on a flat vulcanizing machine, wherein the vulcanization condition is 140 plus 180 ℃, and the vulcanization pressure is 8-12 MPa.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704753A (en) * | 2020-07-03 | 2020-09-25 | 山东米乐奇轮胎有限公司 | Low-tire-noise tread and preparation method thereof |
| CN114539637A (en) * | 2022-01-26 | 2022-05-27 | 无锡市中惠橡胶科技有限公司 | Cutting-resistant rubber track for engineering machinery and preparation method thereof |
-
2019
- 2019-12-19 CN CN201911315650.4A patent/CN111100343A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704753A (en) * | 2020-07-03 | 2020-09-25 | 山东米乐奇轮胎有限公司 | Low-tire-noise tread and preparation method thereof |
| CN111704753B (en) * | 2020-07-03 | 2021-06-04 | 山东米乐奇轮胎有限公司 | Low-tire-noise tread and preparation method thereof |
| CN114539637A (en) * | 2022-01-26 | 2022-05-27 | 无锡市中惠橡胶科技有限公司 | Cutting-resistant rubber track for engineering machinery and preparation method thereof |
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