CN112480496B - Formula and preparation method of energy-saving and environment-friendly tire support rubber for automobiles - Google Patents
Formula and preparation method of energy-saving and environment-friendly tire support rubber for automobiles Download PDFInfo
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- CN112480496B CN112480496B CN202011517307.0A CN202011517307A CN112480496B CN 112480496 B CN112480496 B CN 112480496B CN 202011517307 A CN202011517307 A CN 202011517307A CN 112480496 B CN112480496 B CN 112480496B
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—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
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
Abstract
The invention relates to an energy-saving environment-friendly tire support rubber formula for automobiles and a preparation method thereof, wherein the formula comprises the following components in parts by weight: 100 parts of butadiene rubber, 40-50 parts of white carbon black, 4-5 parts of silane coupling agent, 3-4 parts of white carbon black dispersing agent, 3-5 parts of zinc oxide, 3-5 parts of novel functional resin, 3-6 parts of liquid isoprene rubber, 2-4 parts of anti-aging agent, 1.8-2.2 parts of accelerator, 0.1-0.2 part of anti-scorching agent and 1.6-2.8 parts of sulfur powder. The invention has the beneficial effects that the white carbon black dispersing agent and the novel functional resin in higher parts are adopted, so that the application problems of extrusion edge breakage and the like are solved while the low heat generation and low rolling resistance of the white carbon black formula are kept; the 100 percent butadiene rubber is used for replacing the combination of natural rubber and high cis-butadiene rubber, so that the processability of the rubber material is ensured, and the balance of low heat generation and low rolling resistance is ensured; the liquid IR is used for replacing oil, so that the processability of the rubber material is ensured, and the hardness of the rubber material is improved.
Description
Technical Field
The invention belongs to the technical field of rubber tires, and particularly relates to an energy-saving environment-friendly tire support rubber formula for automobiles and a preparation method thereof.
Background
With the rapid development of social economy and the rapid expansion of the demand of traffic facilities, people have more and more demands on automobile tires, and run-flat tires are used as a subdivision class of the automobile tires, and are popular with more and more automobile original manufacturers and tire replacement markets due to the safety of the tires; the support rubber is used as a key component of the run-flat tire and is important to the comfort, the oil saving performance and the zero-air-pressure driving capacity of the tire.
The supporting rubber used in the tire industry at present mainly takes zero-air-pressure driving capability as a first requirement, the oil saving property and the comfort of the tire are greatly sacrificed, in addition, the common supporting rubber formula at present adopts a method of combining natural rubber and butadiene rubber to solve the problem of poor processability of the butadiene rubber, but the method increases the rolling resistance to a certain degree, improves the automobile oil consumption, and improves the processability of rubber materials by using a certain part of plasticizing oil, so the physical property of the rubber materials is reduced, and the service life of the tire is shortened.
Disclosure of Invention
Aiming at the defects of the prior art, the invention develops the formula of the energy-saving environment-friendly tire supporting rubber for the automobile, which has low rolling resistance and better comfort, on the premise of ensuring the zero-air-pressure durability of the tire. In order to achieve the aim, the invention provides an energy-saving environment-friendly tire support rubber formula for an automobile, which comprises the following components in parts by weight: 100 parts of butadiene rubber, 40-50 parts of white carbon black, 4-5 parts of silane coupling agent, 3-4 parts of white carbon black dispersing agent, 3-5 parts of zinc oxide, 3-5 parts of novel functional resin, 3-6 parts of liquid isoprene rubber, 2-4 parts of anti-aging agent, 1.8-2.2 parts of accelerator, 0.1-0.2 part of anti-scorching agent and 1.6-2.8 parts of sulfur powder; the cis-butadiene rubber comprises cis-butadiene rubber with the cis content of more than 95 percent and cis-butadiene rubber with the cis content of 35 to 40 percent; the cis-butadiene rubber with the cis-content of more than 95 percent and the cis-butadiene rubber with the cis-content of 35 percent to 40 percent are used in the amount of (1-1.5): 1, the novel functional resin is super tackifying resin KORESIN.
The formula of the energy-saving environment-friendly tire support rubber for the automobile is characterized in that the white carbon black is 150-190m in nitrogen adsorption specific surface area 2 The silane coupling agent is a sulfur-containing silane coupling agent and comprises one or more of bis (triethoxysilylpropyl) tetrasulfide (TESPT), bis (triethoxysilylpropyl) disulfide (TESPD) and NXT.
The white carbon black dispersing agent is a Rhine white carbon black dispersing agent ST.
The anti-aging agent is one or two of anti-aging agent TMQ, anti-aging agent 6PPD and anti-aging agent DTPD.
The accelerator disclosed by the invention is an accelerator DM.
The scorch retarder is a scorch retarder CTP.
In addition, the invention also provides a preparation method of the novel energy-saving environment-friendly tire support rubber for the automobile, which comprises the following steps:
s1 masterbatch production
Adding butadiene rubber, white carbon black, a silane coupling agent, a white carbon black dispersing agent, super tackifying resin KORESIN and liquid isoprene rubber into an internal mixer, starting the internal mixer, pressing a top bolt for 40s at a pressure of 0.4-0.6MPa, lifting the bolt for oiling, pressing the top bolt for 40s at a mixing temperature of 125 ℃, at a rotating speed of 40-45rpm, lifting the bolt for 10s, pressing the top bolt for 40s, raising the mixing temperature to 145 ℃, reducing the rotating speed to 5-15rpm, reducing the pressure of the top bolt to 0.3-0.4MPa, pressing the top bolt for 60s, raising the rotating speed to 50rpm, raising the pressure of the top bolt to 0.4-0.6MPa, and discharging rubber.
S2 Final gel production
Adding master batch, zinc oxide, an anti-aging agent, an accelerator DM, an anti-scorching agent CTP and sulfur powder into an internal mixer, starting the internal mixer, setting the rotating speed to be 30-45rpm, pressing a top bolt for 35s under the pressure of 0.4-0.6MPa, lifting the bolt for 10s, pressing the top bolt for 35s, raising the mixing temperature to 105 ℃, raising the rotating speed to 50rpm, and discharging rubber.
The invention has the advantages that the white carbon black dispersing agent and the novel functional resin in higher parts are adopted, so that the application problems of extrusion edge breakage and the like are solved while the low heat generation and low rolling resistance of the white carbon black formula are kept; the 100 percent butadiene rubber is used for replacing the combination of natural rubber and high cis-butadiene rubber, so that the processability of the rubber material is ensured, and the balance of low heat generation and low rolling resistance is ensured; the liquid IR is used for replacing oil, so that the processability of the rubber material is ensured, and the hardness of the rubber material is improved.
Detailed Description
The present invention will be further described with reference to specific examples, but the present invention is not limited to these examples.
Example 1
The formula of the energy-saving and environment-friendly tire support rubber for the automobile comprises the following components in parts by weight: 50 parts of butadiene rubber with the cis content of more than 95 percent, 50 parts of butadiene rubber with the cis content of 35 to 40 percent, 45 parts of white carbon black HD 165GR, 1 part of antioxidant TMQ, 2 parts of antioxidant 6PPD, 4 parts of silane coupling agent NXT, 4 parts of Rhine white carbon black dispersing agent ST, 3 parts of zinc oxide, 5 parts of super tackifying resin KORESIN, 5 parts of liquid isoprene rubber, 1.8 parts of accelerator DM, 0.1 part of antiscorch agent CTP and 2.0 parts of sulfur powder.
The method for preparing the novel energy-saving environment-friendly tire support rubber for the automobile comprises the following steps of:
s1 masterbatch production
Adding butadiene rubber, white carbon black, a silane coupling agent, a white carbon black dispersing agent, super tackifying resin KORESIN and liquid isoprene rubber into an internal mixer, starting the internal mixer, pressing a top bolt for 40s at a pressure of 0.4-0.6MPa, lifting the bolt for oiling, pressing the top bolt for 40s at a mixing temperature of 125 ℃, at a rotating speed of 40-45rpm, lifting the bolt for 10s, pressing the top bolt for 40s, raising the mixing temperature to 145 ℃, reducing the rotating speed to 5-15rpm, reducing the pressure of the top bolt to 0.3-0.4MPa, pressing the top bolt for 60s, raising the rotating speed to 50rpm, raising the pressure of the top bolt to 0.4-0.6MPa, and discharging rubber.
S2 Final gel production
Adding master batch, zinc oxide, an anti-aging agent, an accelerator DM, an anti-scorching agent CTP and sulfur powder into an internal mixer, starting the internal mixer, setting the rotating speed to be 30-45rpm, pressing a top bolt for 35s under the pressure of 0.4-0.6MPa, lifting the bolt for 10s, pressing the top bolt for 35s, raising the mixing temperature to 105 ℃, raising the rotating speed to 50rpm, and discharging rubber.
Example 2
The formula of the energy-saving and environment-friendly tire support rubber for the automobile comprises the following components in parts by weight: 60 parts of butadiene rubber with the cis content of more than 95 percent, 40 parts of butadiene rubber with the cis content of 35 to 40 percent, 50 parts of white carbon black HD 165GR, 1 part of antioxidant TMQ, 2 parts of antioxidant 6PPD, 1 part of antioxidant DTPD, 5 parts of silane coupling agent TESPD, 3 parts of Rhine white carbon black dispersing agent ST, 5 parts of zinc oxide, 4 parts of super tackifying resin KORESIN, 6 parts of liquid isoprene rubber, 2.0 parts of accelerator DM, 0.15 part of antiscorching agent CTP and 2.4 parts of sulfur powder.
This example of a method for preparing a novel energy-saving and environment-friendly tire support rubber for automobiles was prepared according to the method of example 1.
Example 3
The formula of the energy-saving and environment-friendly tire support rubber for the automobile comprises the following components in parts by weight: 55 parts of butadiene rubber with the cis content of more than 95 percent, 45 parts of butadiene rubber with the cis content of 35 to 40 percent, 50 parts of white carbon black HD 165GR, 1 part of antioxidant TMQ, 2 parts of antioxidant 6PPD, 4 parts of silane coupling agent TESPT, 4 parts of Rhine carbon black dispersing agent ST, 4 parts of zinc oxide, 3 parts of super tackifying resin KORESIN, 6 parts of liquid isoprene rubber, 2.2 parts of accelerator DM, 0.15 part of antiscorching agent CTP and 2.8 parts of sulfur powder.
This example of a method for preparing a novel energy-saving and environment-friendly tire support rubber for automobiles was prepared according to the method of example 1.
Example 4
The formula of the energy-saving and environment-friendly tire support rubber for the automobile comprises the following components in parts by weight: 50 parts of butadiene rubber with the cis content of more than 95 percent, 50 parts of butadiene rubber with the cis content of 35 to 40 percent, 50 parts of white carbon black HD 175GR, 1 part of antioxidant TMQ, 2 parts of antioxidant 6PPD, 1 part of antioxidant DTPD, 2 parts of silane coupling agent NXT, 3 parts of silane coupling agent TESPD, 3 parts of Rhine white carbon black dispersing agent ST, 4 parts of zinc oxide, 3 parts of super tackifying resin KORESIN, 6 parts of liquid isoprene rubber, 2.2 parts of accelerator DM, 0.15 part of antiscorching agent CTP and 2.8 parts of sulfur powder.
This example of a method for preparing a novel energy-saving and environment-friendly tire support rubber for automobiles was prepared according to the method of example 1.
Comparative example
The reference formula adopted by the comparative example comprises the following components in parts by weight: 40 parts of natural rubber (SMR 20), 60 parts of butadiene rubber with the cis content of more than 95%, 33950 parts of carbon black N, 1 part of antioxidant TMQ, 2 parts of antioxidant 6PPD, 1 part of antioxidant DTPD, 5 parts of zinc oxide, 18014 parts of tackifying resin, V7006 parts of environment-friendly oil, 2.0 parts of accelerator DM, 0.15 part of antiscorching agent CTP and 2.4 parts of sulfur powder.
The method for preparing the energy-saving environment-friendly tire support rubber for the automobile comprises the following steps:
s1 masterbatch production
Adding natural rubber, butadiene rubber, carbon black, tackifying resin into an internal mixer, starting the internal mixer, pressing a top bolt for 30s at a top bolt pressure of 0.4-0.6Mpa, lifting the bolt for oiling, pressing the top bolt for 40s at a top bolt pressure of 0.4-0.6Mpa at a mixing temperature of 125 ℃, at a rotating speed of 45-55rpm, lifting the bolt for 10s, pressing the top bolt for 40s, raising the mixing temperature to 145 ℃ for lifting the bolt, reducing the rotating speed to 30-40rpm, standing for 10-15 s, pressing the top bolt, and discharging the rubber when the temperature reaches 155-170 ℃.
S2 Final gel production
Adding master batch, zinc oxide, an anti-aging agent, an accelerator DM, an anti-scorching agent CTP and sulfur powder into an internal mixer, starting the internal mixer, setting the rotating speed to be 20-25rpm, pressing a top bolt for 50s, keeping the pressure of the top bolt at 0.4-0.6Mpa, rising the bolt for 15s, then pressing the top bolt to raise the mixing temperature to 85 ℃, rising the bolt, keeping the mixture for 10-15 s, pressing the top bolt, rising the bolt when the temperature of a rubber material is 90-115 ℃, and discharging the rubber.
The physical properties of inventive examples 1-4 and comparative examples are shown in Table 1
TABLE 1 physical Properties of examples 1-4 and comparative examples
The performance of inventive examples 1-4 and comparative examples on a run-on-tire is shown in table 2, the support rubber thickness of inventive examples is reduced by an average of 0.8mm from comparative examples depending on the hardness of the rubber compound, and the tested tire specification is 225/50R 1794W.
TABLE 2 Performance on a run-on-tire for examples 1-4 and comparative examples
From the test results, the Tan delta value of the novel energy-saving environment-friendly tire supporting rubber for the automobile at 60 ℃ is lower than that of a comparative example, which shows that the rolling resistance of the tire is low, namely the heat generation of the tire is low and the service life of the tire is long; the supporting rubber has high rubber hardness, and can achieve the same supporting effect by using less rubber; the fatigue temperature rise value of the heat generated by compression can represent the fatigue resistance and the breakage resistance of the tire. For the run-flat tire support rubber, the lower the numerical value of the run-flat tire support rubber, the longer the running time of the tire in a zero air pressure state, so the support rubber prepared by the formula completely meets the GB/T4502-2016 standard, the product quality is higher than the national standard, the product quality is high, the rolling resistance is low, the service life is long, and the support rubber is more environment-friendly, energy-saving and safe.
Although the present application has been described with reference to a few embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application as defined by the appended claims.
Claims (7)
1. The formula of the energy-saving environment-friendly tire support rubber for the automobile is characterized by comprising the following components in parts by weight: 100 parts of butadiene rubber, 40-50 parts of white carbon black, 4-5 parts of silane coupling agent, 3-4 parts of white carbon black dispersing agent, 3-5 parts of zinc oxide, 3-5 parts of novel functional resin, 3-6 parts of liquid isoprene rubber, 2-4 parts of anti-aging agent, 1.8-2.2 parts of accelerator, 0.1-0.2 part of anti-scorching agent and 1.6-2.8 parts of sulfur powder, wherein the butadiene rubber comprises cis-butadiene rubber with cis-form content of more than 95% and cis-butadiene rubber with cis-form content of 35-40%, and the cis-butadiene rubber with cis-form content of more than 95% and the cis-butadiene rubber with cis-form content of 35-40% are (1-1.5): 1; the novel functional resin is super tackifying resin KORESIN.
2. The formula of the energy-saving and environment-friendly tire support rubber for the automobile as claimed in claim 1, wherein the white carbon black is high-dispersion white carbon black with nitrogen adsorption specific surface area of 150-190m2/g, and the silane coupling agent is a sulfur-containing silane coupling agent comprising one or more of bis (triethoxysilylpropyl) tetrasulfide (TESPT), bis (triethoxysilylpropyl) disulfide (TESPD) and NXT.
3. The formula of the energy-saving and environment-friendly tire support rubber for the automobile according to claim 2, wherein the white carbon black dispersant is a Rhine white carbon black dispersant ST.
4. The energy-saving and environment-friendly tire support rubber formula for the automobiles as claimed in claim 1, wherein the antioxidant is one or two of antioxidant TMQ, antioxidant 6PPD and antioxidant DTPD.
5. The formulation of energy-saving and environment-friendly tire support rubber for automobiles as claimed in claim 1, wherein the accelerator is accelerator DM.
6. The energy-saving and environment-friendly tire support rubber formula for the automobiles as claimed in claim 1, wherein the scorch retarder is scorch retarder CTP.
7. A method for preparing the energy-saving and environment-friendly tire support rubber for the automobile according to any one of claims 1 to 6, which is characterized by comprising the following steps:
s1 masterbatch production
Adding butadiene rubber, white carbon black, a silane coupling agent, a white carbon black dispersing agent, super tackifying resin KORESIN and liquid isoprene rubber into an internal mixer, starting the internal mixer, pressing a top bolt for 40s, increasing the pressure of the top bolt to 0.4-0.6Mpa, increasing the pressure of the top bolt for oiling, pressing the top bolt for 40s, mixing the temperature to 125 ℃, the rotating speed to 40-45rpm, increasing the pressure of the top bolt for 10s, pressing the top bolt for 40s, increasing the mixing temperature to 145 ℃, reducing the rotating speed to 5-15rpm, reducing the pressure of the top bolt to 0.3-0.4Mpa, pressing the top bolt for 60s, increasing the rotating speed to 50rpm, increasing the pressure of the top bolt to 0.4-0.6Mpa, and discharging rubber;
s2 Final glue production
Adding master batch, zinc oxide, an anti-aging agent, an accelerator, an anti-scorching agent and sulfur powder into an internal mixer, starting the internal mixer, setting the rotating speed at 30-45rpm, pressing a top bolt for 35s under the pressure of 0.4-0.6MPa, rising the bolt for 10s, pressing the top bolt for 35s, raising the mixing temperature to 105 ℃, increasing the rotating speed to 50rpm, and discharging rubber.
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| CN202011517307.0A CN112480496B (en) | 2020-12-21 | 2020-12-21 | Formula and preparation method of energy-saving and environment-friendly tire support rubber for automobiles |
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| CN202011517307.0A CN112480496B (en) | 2020-12-21 | 2020-12-21 | Formula and preparation method of energy-saving and environment-friendly tire support rubber for automobiles |
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| CN112480496B true CN112480496B (en) | 2022-09-02 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408807A (en) * | 2013-08-19 | 2013-11-27 | 赛轮股份有限公司 | Tire tread mix with low rolling resistance |
| CN107337820A (en) * | 2017-08-10 | 2017-11-10 | 侯强 | High-performance environment-friendly green tire material and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408807A (en) * | 2013-08-19 | 2013-11-27 | 赛轮股份有限公司 | Tire tread mix with low rolling resistance |
| CN107337820A (en) * | 2017-08-10 | 2017-11-10 | 侯强 | High-performance environment-friendly green tire material and preparation method thereof |
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