CN113444300B - Rubber composition for sole material, vulcanized rubber, and preparation method and application thereof - Google Patents
Rubber composition for sole material, vulcanized rubber, and preparation method and application 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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/04—Plastics, rubber or vulcanised fibre
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2309/00—Characterised by the use 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2471/02—Polyalkylene oxides
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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
- C08K3/24—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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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Abstract
The invention relates to the field of vulcanized rubber, and discloses a rubber composition for sole materials, a vulcanized rubber, a preparation method and an application thereof, wherein the composition comprises the following components in parts by weight: the rubber substrate is butadiene rubber, and the substrate modifier is selected from (R) with a general formula 1 O) 3 SiCH 2 CH 2 CH 2 -species of SH, said R 1 O is a hydrolyzable group, and the organosilane coupling agent is at least one selected from Si69 and Si 75. Vulcanized rubber prepared from the rubber composition has the advantages of good transparency, high strength, good wear resistance, excellent rebound resilience and the like.
Description
Technical Field
The invention relates to the field of vulcanized rubber, in particular to a rubber composition for a sole material, a method for preparing the vulcanized rubber, the vulcanized rubber prepared by the method and application of the vulcanized rubber in the sole material.
Background
The comfort of the sole directly affects the quality of the entire shoe. In the prior art, the sole is produced by using PVC, TPR, TPU and other materials, and the materials are inferior to the sole made of rubber in the aspects of comfort and skid resistance.
In the prior art, white carbon black is used as a main reinforcing filler and is widely applied to shoe products, so that soles have good wear resistance, skid resistance and vamp adhesion, colored cowhells soles can be processed, and the white carbon black is widely applied to transparent, light-colored and colored soles (including outsoles, midsoles and foxings). Therefore, the shoe industry is always a large user of white carbon black.
The dispersion of white carbon black in a rubber matrix becomes extremely difficult due to the strong surface polarity of the white carbon black, so that the application is limited to a certain extent.
The prior art can not completely meet the characteristics of high transmittance, wear resistance and strength required by the transparent sole containing the white carbon black formula.
Therefore, there is a need to provide a rubber composition with improved properties.
Disclosure of Invention
The invention aims to solve the problems of improving the transmittance, strength and wear resistance of vulcanized rubber formed by a formula of a sole material containing white carbon black.
In order to achieve the above object, a first aspect of the present invention provides a rubber composition for a shoe sole material, which contains the following components stored in admixture or separately:
the rubber composition comprises a rubber matrix, a matrix modifier, white carbon black, carbonate, triethanolamine, polyethylene glycol, an organosilane coupling agent, an anti-aging agent and a vulcanizing agent;
wherein the rubber matrix is butadiene rubber; the matrix modifier is selected from (R) 1 O) 3 SiCH 2 CH 2 CH 2 At least one of the substances of-SH, said R 1 O is a hydrolyzable group; the organosilane coupling agent is selected from at least one of Si69 and Si 75;
relative to 100 parts by weight of the rubber matrix, the content of the matrix modifier is 3-8 parts by weight, the content of the white carbon black is 10-30 parts by weight, the content of the carbonate is 2-6 parts by weight, the content of the triethanolamine is 1-4 parts by weight, the content of the polyethylene glycol is 3-6 parts by weight, the content of the organosilane coupling agent is 1-3 parts by weight, the content of the anti-aging agent is 1-5 parts by weight, and the content of the vulcanizing agent is 5-10 parts by weight.
A second aspect of the present invention provides a process for preparing a vulcanizate, prepared using the components of the composition described in the first aspect of the present invention, the process comprising:
(1) carrying out first mixing on a component A containing a rubber matrix and a matrix modifier to obtain a section of master batch, wherein the first mixing conditions comprise: the temperature is 90-130 deg.C, and the time is 3-7 min;
(2) and carrying out second mixing on the first-section masterbatch and a component B containing white carbon black, an organosilane coupling agent and polyethylene glycol to obtain a second-section masterbatch, wherein the second mixing conditions comprise that: the temperature is 110-160 ℃, and the time is 2-6 min;
(3) and (3) carrying out third mixing on the second-stage masterbatch and a component C containing carbonate, triethanolamine and an anti-aging agent to obtain the third-stage masterbatch, wherein the third mixing conditions comprise that: the temperature is 120-;
(4) and carrying out fourth mixing on the three sections of master batch and a component D containing a vulcanizing agent to obtain a final rubber compound, wherein the fourth mixing conditions comprise that: the temperature is not more than 120 ℃, and the time is 3-5 min;
(5) vulcanizing the final rubber.
A third aspect of the present invention provides a vulcanizate prepared by the foregoing method.
A fourth aspect of the invention provides the use of the aforementioned vulcanized rubber in a sole material.
The invention modifies the rubber matrix through the components of the matrix modifier and the like, so that the prepared vulcanized rubber has good transmittance, high strength, good wear resistance and excellent rebound resilience.
In addition, the specific method for preparing the vulcanized rubber provided by the invention can exert the synergistic effect of each component in the composition provided by the invention, so that the prepared vulcanized rubber has better performance.
Detailed Description
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
As described above, the first aspect of the present invention provides a rubber composition for a shoe sole material, which contains the following components stored in admixture or separately:
the rubber composition comprises a rubber matrix, a matrix modifier, white carbon black, carbonate, triethanolamine, polyethylene glycol, an organosilane coupling agent, an anti-aging agent and a vulcanizing agent;
wherein the rubber matrix is butadiene rubber; the matrix modifier is selected from (R) 1 O) 3 SiCH 2 CH 2 CH 2 At least one of the substances of-SH, said R 1 O is a hydrolyzable group; the organosilane coupling agent is selected from at least one of Si69 and Si 75;
relative to 100 parts by weight of the rubber matrix, the content of the matrix modifier is 3-8 parts by weight, the content of the white carbon black is 10-30 parts by weight, the content of the carbonate is 2-6 parts by weight, the content of the triethanolamine is 1-4 parts by weight, the content of the polyethylene glycol is 3-6 parts by weight, the content of the organosilane coupling agent is 1-3 parts by weight, the content of the anti-aging agent is 1-5 parts by weight, and the content of the vulcanizing agent is 5-10 parts by weight.
Preferably, the cis content in the butadiene rubber is 95 to 99% by weight.
Preferably, in the matrix modifier, R is 1 O is methoxy or ethoxy.
Preferably, the white carbon black is produced by a gas phase method, and the nitrogen adsorption specific surface area is 350-420m 2 White carbon black per gram; for example, the white carbon black is A380. The inventor finds that the nitrogen produced by the gas phase method has the adsorption specific surface area of 350-420m 2 (g) white carbon black for use in the inventionThe vulcanized rubber prepared from the composition has better transparency, higher strength, wear resistance and resilience.
Preferably, the number average molecular weight of the polyethylene glycol is 2000-6000, such as PEG4000 and the like.
Preferably, the carbonate is selected from at least one of zinc carbonate and calcium carbonate; more preferably, the carbonate is zinc carbonate.
Preferably, the antioxidant is at least one of phenolic antioxidants; more preferably, the antioxidant is at least one selected from the group consisting of 2, 6-di-tert-butyl-4-methylphenol (antioxidant 264) and 2, 2-methylenebis- (4-methyl-6-tert-butylphenol) (antioxidant 2246).
Preferably, the vulcanizing agent is at least one of an organic peroxide vulcanizing agent; more preferably, the vulcanizing agent is selected from at least one of dicumyl peroxide (DCP) and di-t-butyl peroxide (DTBP).
As previously mentioned, a second aspect of the present invention provides a process for preparing a vulcanizate, using the components of the composition described in the first aspect of the present invention, which process comprises:
(1) carrying out first mixing on a component A containing a rubber matrix and a matrix modifier to obtain a section of master batch, wherein the first mixing conditions comprise: the temperature is 90-130 deg.C, and the time is 3-7 min;
(2) and carrying out second mixing on the first-section masterbatch and a component B containing white carbon black, an organosilane coupling agent and polyethylene glycol to obtain a second-section masterbatch, wherein the second mixing conditions comprise that: the temperature is 110-;
(3) and (3) carrying out third mixing on the second-stage masterbatch and a component C containing carbonate, triethanolamine and an anti-aging agent to obtain the third-stage masterbatch, wherein the third mixing conditions comprise that: the temperature is 120-160 ℃, and the time is 1-5 min;
(4) and carrying out fourth mixing on the three sections of master batch and a component D containing a vulcanizing agent to obtain a final rubber compound, wherein the fourth mixing conditions comprise that: the temperature is not more than 120 ℃, and the time is 3-5 min;
(5) vulcanizing the final rubber.
The raw materials for preparing the vulcanized rubber in the second aspect of the present invention constitute the composition described in the aforementioned first aspect of the present invention, therefore, the raw materials in the second aspect of the present invention are all the same in kind as those described in the first aspect of the present invention, and in order to avoid repetition, the present invention is not described in detail in the second aspect, and those skilled in the art should not be construed as limiting the present invention.
Preferably, the conditions of the first mixing include: the temperature is 110-120 ℃, and the time is 4-6 min.
Preferably, the conditions of the second mixing include: the temperature is 130-150 ℃ and the time is 3-5 min.
Preferably, the conditions of the third mixing include: the temperature is 140 ℃ and 150 ℃, and the time is 2-4 min.
Preferably, the conditions of the vulcanization include: the temperature is 150 ℃ and 170 ℃, the pressure is 10-20MPa, and the time is 20-40 min.
Preferably, the matrix modifier is used in an amount of 3-8 parts by weight, the white carbon black is used in an amount of 10-30 parts by weight, the carbonate is used in an amount of 2-6 parts by weight, the triethanolamine is used in an amount of 1-4 parts by weight, the polyethylene glycol is used in an amount of 3-6 parts by weight, the organosilane coupling agent is used in an amount of 1-3 parts by weight, the anti-aging agent is used in an amount of 1-5 parts by weight, and the vulcanizing agent is used in an amount of 5-10 parts by weight, based on 100 parts by weight of the rubber matrix.
In order to clearly describe the process for preparing a vulcanized rubber of the present invention, a preferred embodiment is provided below for illustration:
(1) preheating an internal mixer to 90-130 ℃, adding a rubber matrix, plasticating for 0.1-3min at the rotating speed of 50-200rpm, adding a matrix modifier into the internal mixer, and carrying out first mixing, wherein the first mixing conditions comprise: the temperature is 90-130 deg.C, and the time is 3-7 min;
(2) adding white carbon black, an organic silane coupling agent and polyethylene glycol into an internal mixer, and carrying out second mixing at the temperature of 110-160 ℃, wherein the conditions of the second mixing comprise: the temperature is 110-160 ℃, and the time is 2-6 min;
(3) adding carbonate, triethanolamine and an anti-aging agent into an internal mixer, and carrying out third mixing at the temperature of 120-160 ℃ to obtain a mixed rubber, wherein the conditions of the third mixing comprise: the temperature is 120-;
(4) plasticating the mixed rubber for 0.1-3min at 20-80 ℃ and 20-150rpm, adding a vulcanizing agent into an internal mixer for fourth mixing, and discharging to obtain final rubber, wherein the fourth mixing conditions comprise: the temperature is not more than 120 ℃, and the time is 3-5 min;
(5) and putting the final rubber compound into a vulcanizing press for vulcanization.
It should be noted that the plastication process in step (1) and step (4) of the present invention is not essential, but is merely a preferred embodiment provided for better processability.
As previously mentioned, a third aspect of the present invention provides a vulcanizate prepared by the foregoing method.
As previously mentioned, a fourth aspect of the invention provides the use of the aforementioned vulcanized rubber in a sole material.
The pressures described herein are all expressed as gauge pressures unless otherwise specified.
The present invention will be described in detail below by way of examples. In the following examples, various raw materials used are commercially available without specific description.
Butadiene rubber: BR9000, a Yanshan petrochemical, having a cis content of 97.8 wt.%;
white carbon black: a380, Degussa, nitrogen adsorption specific surface area 380m 2 (iv) g; AEROSIL R974, Degussa, nitrogen adsorption specific surface area 180m 2 /g；
Polyethylene glycol: PEG2000, PEG4000, PEG6000, technical grade, dow chemical company, usa;
matrix modifier: 3-mercaptopropyltriethoxysilane, 3-mercaptopropyltrimethoxysilane, analytical grade, Allantin reagent company;
organosilane coupling agent: si69, Si75, technical grade, Pining coupling agent Co., Ltd;
zinc carbonate: the analysis is pure, and the product can be obtained by Hongda zinc industry company;
calcium carbonate: analytically pure, Hongxin mining, Inc.;
triethanolamine: analytical purification, purge chemical Co., Ltd;
an anti-aging agent: 2, 6-di-tert-butyl-4-methylphenol (anti-aging agent 264), 2, 2-methylenebis- (4-methyl-6-tert-butylphenol) (anti-aging agent 2246), Panhua chemical (Shanghai) Co., Ltd;
vulcanizing agent: dicumyl peroxide (DCP), di-t-butyl peroxide (DTBP), Aladdin reagent.
In the following examples, the rubber processing conditions are shown in Table 1, the rubber test equipment conditions are shown in Table 2, and the test conditions are shown in Table 3.
TABLE 1
| Serial number | Device name | Model number | Manufacturer of the product | Use of |
| 1 | Internal mixer | BR1600 | Farrel America Ltd | Mixing the raw materials |
| 2 | Flat vulcanizing machine | XLB-D400*400*2 | Shanghai first rubber machinery plant | Vulcanization |
TABLE 2
TABLE 3
The amounts of the components in the following examples are all parts by weight (or parts), each part by weight representing 1 g.
Example 1
The composition formulations are listed in table 4.
The internal mixer was preheated to 110 ℃, the rubber matrix was added, mastication was carried out at a rotational speed of 70rpm for 0.5min (in the case where nothing is specifically mentioned, the same conditions were used for mastication in the other examples, and then the first mixing was carried out), the matrix modifier was added to the internal mixer, and the first mixing was carried out for 6 min. Then adding white carbon black, an organic silane coupling agent and polyethylene glycol into the internal mixer, and carrying out second mixing for 5min at 130 ℃. Then, carbonate, triethanolamine and an anti-aging agent are added into the internal mixer, and third mixing is carried out for 4min at 140 ℃. Subsequently, the above-mentioned rubber composition was masticated at 60 ℃ and 60rpm for 0.5min (in the case where no specific description is given, the same conditions were employed in the other examples for mastication, and then the fourth mixing was performed), and then, a vulcanizing agent was continuously added to the internal mixer to perform the fourth mixing at 100 ℃ for 5min, and the mixture was discharged to obtain a final rubber composition. And (3) putting the final rubber compound into a flat vulcanizing machine for vulcanization, wherein the vulcanization temperature is 150 ℃, the vulcanization pressure is 20MPa, and the vulcanization time is 40min, so that a vulcanized rubber sample S1 is obtained.
The remaining examples were carried out using the same procedure as in example 1, except for example 6, and the specific process conditions are shown in Table 4.
Example 6
The composition formulation was the same as in example 1.
The preparation method of the vulcanized rubber comprises the following steps: a process similar to example 1 was carried out, except that the first mixing was not carried out. Specifically, the method comprises the following steps:
preheating an internal mixer to 110 ℃, adding the rubber matrix and the matrix modifier, and plasticating for 0.5min at the rotating speed of 70 rpm. Then, white carbon black, an organic silane coupling agent and polyethylene glycol were added to the internal mixer, and mixing (i.e., the second mixing described in example 1) was performed at 130 ℃ for 5 min. Next, carbonate, triethanolamine and an antioxidant were added to the internal mixer, and mixing (i.e., the third mixing described in example 1) was performed at 140 ℃ for 4 min. Subsequently, the above-mentioned rubber compound was masticated at 60 ℃ and 60rpm for 0.5min, and then, a vulcanizing agent was continuously added to the internal mixer to perform mixing (i.e., the fourth mixing described in example 1) at a mixing temperature of 100 ℃ for 5min, and a final rubber compound was obtained by discharging. And (3) putting the final rubber compound into a flat vulcanizing machine for vulcanization, wherein the vulcanization temperature is 150 ℃, the vulcanization pressure is 20MPa, and the vulcanization time is 40min, so that a vulcanized rubber sample S1 is obtained.
The composition formulations of comparative example 1, comparative example 2, comparative example 3 and comparative example 4 are listed in table 4. The preparation process was the same as in example 1, and the specific parameters are listed in Table 4.
TABLE 4
Table 4 (continuation watch)
Test example
The examples and comparative products were subjected to the relevant performance tests, and the results are shown in Table 5.
TABLE 5
| Test items | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Light transmittance (%) | 72.4 | 70.9 | 73.5 | 68.7 | 60.5 |
| Hardness (°) | 55 | 56 | 55 | 59 | 63 |
| Tear Strength (MPa) | 10.3 | 10.7 | 10.2 | 9.0 | 8.7 |
| Tear Strength (kN/m) | 31 | 33 | 34 | 28 | 25 |
| DIN abrasion (mm) 3 ) | 50 | 51 | 49 | 57 | 67 |
| Rebound value (%) | 49.1 | 50.3 | 49.7 | 45.0 | 42.1 |
Table 5 (continuation watch)
| Test items | Example 6 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 |
| Light transmittance (%) | 56.4 | 45.0 | 30.1 | 31.2 | 32.8 |
| Hardness (°) | 67 | 70 | 78 | 75 | 76 |
| Tear Strength (MPa) | 8.0 | 7.1 | 5.7 | 6.0 | 6.2 |
| Tear Strength (kN/m) | 22 | 19 | 15 | 16 | 18 |
| DIN abrasion (mm) 3 ) | 69 | 90 | 150 | 132 | 148 |
| Rebound value (%) | 40.2 | 38.4 | 22.4 | 35.8 | 23.7 |
From the results in Table 5, it can be seen that the formulations of the present invention provide significant improvements in light transmittance, strength, abrasion resistance and rebound resilience of the vulcanizates as compared to the prior art.
The rubber composition disclosed by the invention can better disperse white carbon black in a rubber matrix, and further exerts the characteristics and advantages of a matrix modifier; therefore, the further prepared vulcanized rubber has the properties of good transparency, high strength, good wear resistance, excellent rebound resilience and the like.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.
Claims (18)
1. A rubber composition for a sole material, characterized by comprising the following components stored in admixture or independently:
the rubber composition comprises a rubber matrix, a matrix modifier, white carbon black, carbonate, triethanolamine, polyethylene glycol, an organosilane coupling agent, an anti-aging agent and a vulcanizing agent;
wherein the rubber matrix is butadiene rubber; the matrix modifier is selected from (R) 1 O) 3 SiCH 2 CH 2 CH 2 At least one of the substances of-SH, said R 1 O is a hydrolyzable group; the organosilane coupling agent is selected from at least one of Si69 and Si 75; the white carbon black is produced by a gas phase method, and the nitrogen adsorption specific surface area is 350-420m 2 White carbon black per gram;
relative to 100 parts by weight of the rubber matrix, the content of the matrix modifier is 3-8 parts by weight, the content of the white carbon black is 10-30 parts by weight, the content of the carbonate is 2-6 parts by weight, the content of the triethanolamine is 1-4 parts by weight, the content of the polyethylene glycol is 3-6 parts by weight, the content of the organosilane coupling agent is 1-3 parts by weight, the content of the anti-aging agent is 1-5 parts by weight, and the content of the vulcanizing agent is 5-10 parts by weight.
2. The composition of claim 1, wherein the cis content in the butadiene rubber is 95-99 wt%.
3. The composition of claim 1 or 2, wherein, in the matrix modifier, the R 1 O is methoxy or ethoxy.
4. The composition as claimed in claim 1 or 2, wherein the polyethylene glycol has a number average molecular weight of 2000-6000.
5. The composition of claim 1 or 2, wherein the carbonate is selected from at least one of zinc carbonate and calcium carbonate.
6. The composition of claim 5, wherein the carbonate is zinc carbonate.
7. The composition according to claim 1 or 2, wherein the antioxidant is at least one of phenolic antioxidants.
8. The composition according to claim 7, wherein the antioxidant is at least one selected from the group consisting of 2, 6-di-tert-butyl-4-methylphenol and 2, 2-methylenebis- (4-methyl-6-tert-butylphenol).
9. The composition according to claim 1 or 2, wherein the vulcanizing agent is at least one of organic peroxide vulcanizing agents.
10. The composition of claim 9 wherein the vulcanizing agent is selected from at least one of dicumyl peroxide and di-t-butyl peroxide.
11. A process for preparing a vulcanized rubber, characterized by using the components of the composition of any one of claims 1 to 10, which comprises:
(1) carrying out first mixing on a component A containing a rubber matrix and a matrix modifier to obtain a section of master batch, wherein the first mixing conditions comprise: the temperature is 90-130 deg.C, and the time is 3-7 min;
(2) and carrying out second mixing on the first-section masterbatch and a component B containing white carbon black, an organosilane coupling agent and polyethylene glycol to obtain a second-section masterbatch, wherein the second mixing conditions comprise that: the temperature is 110-;
(3) and (3) carrying out third mixing on the second-stage masterbatch and a component C containing carbonate, triethanolamine and an anti-aging agent to obtain the third-stage masterbatch, wherein the third mixing conditions comprise that: the temperature is 120-;
(4) and carrying out fourth mixing on the three sections of master batch and a component D containing a vulcanizing agent to obtain a final rubber compound, wherein the fourth mixing conditions comprise that: the temperature is not more than 120 ℃, and the time is 3-5 min;
(5) vulcanizing the final rubber.
12. The method of claim 11, wherein the conditions of the first mixing comprise: the temperature is 110-120 ℃, and the time is 4-6 min.
13. The method of claim 11 or 12, wherein the conditions of the second mixing comprise: the temperature is 130-150 ℃ and the time is 3-5 min.
14. The method of claim 11 or 12, wherein the conditions of the third mixing comprise: the temperature is 140 ℃ and 150 ℃, and the time is 2-4 min.
15. The method of claim 11 or 12, wherein the conditions of the sulfiding comprise: the temperature is 150 ℃ and 170 ℃, the pressure is 10-20MPa, and the time is 20-40 min.
16. The method according to claim 11 or 12, wherein the matrix modifier is used in an amount of 3 to 8 parts by weight, the white carbon black is used in an amount of 10 to 30 parts by weight, the carbonate is used in an amount of 2 to 6 parts by weight, the triethanolamine is used in an amount of 1 to 4 parts by weight, the polyethylene glycol is used in an amount of 3 to 6 parts by weight, the organosilane coupling agent is used in an amount of 1 to 3 parts by weight, the anti-aging agent is used in an amount of 1 to 5 parts by weight, and the vulcanizing agent is used in an amount of 5 to 10 parts by weight, relative to 100 parts by weight of the rubber matrix.
17. A vulcanized rubber produced by the process of any one of claims 11-16.
18. Use of the vulcanizate of claim 17 in a sole material.
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| JP2000239447A (en) * | 1998-12-25 | 2000-09-05 | Nippon Mitsubishi Oil Corp | Silica-mixed rubber composition |
| CN102964881B (en) * | 2012-12-07 | 2015-04-08 | 北京彤程创展科技有限公司 | Amino/mercapto silane modified silica and preparation method thereof |
| CN109929155B (en) * | 2017-12-15 | 2021-08-03 | 中国石油化工股份有限公司 | Rubber composition for shoe sole, vulcanized rubber, and preparation method and application thereof |
| CN110713640B (en) * | 2018-07-13 | 2022-08-09 | 杭州星庐科技有限公司 | Rubber composition and processing method, and rubber product and production method using same |
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