CN104530499A - All-steel load radial tire tread base rubber material and preparation method thereof - Google Patents
All-steel load radial tire tread base rubber material and preparation method thereof Download PDFInfo
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- CN104530499A CN104530499A CN201410814857.7A CN201410814857A CN104530499A CN 104530499 A CN104530499 A CN 104530499A CN 201410814857 A CN201410814857 A CN 201410814857A CN 104530499 A CN104530499 A CN 104530499A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0016—Compositions of the tread
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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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
Abstract
The invention relates to an all-steel load radial tire tread base rubber material and a preparation method thereof. The base rubber material comprises the following raw materials in parts by weight: 100 parts of natural rubber, 0-0.3 part of a peptizer, 30-45 parts of carbon black, 7-18 parts of white carbon black, 1-4 parts of a silane coupling agent, 3-5 parts of zinc oxide, 1-3 parts of stearic acid, 1-3 parts of phenolic tackifying resin, 0.5-3 parts of petroleum resin, 0.5-2 parts of an anti-aging agent 6PPD, 0.5-2 parts of an anti-aging agent RD, 1-3 parts of sulfur, 0.8-3 parts of an accelerator and 0-0.3 part of a scorch retarder. Petroleum resin is added to improve the medium-term and long-term viscidity of a tire tread half member so that the tread is well bonded with belt layers during molding and the phenomenon of delamination of a tread crown is improved. The material disclosed by the invention has the advantages of good thermal resistance and aging resistance, low heat generation and tear resistance and the problem of pattern groove cracking of the finished tread is improved.
Description
Technical field
The present invention relates to rubber materials, be specifically related to a kind of all-steel load-bearing radial tire tread base sizing material and preparation method thereof.
Background technology
Tyre surface and belt are closely linked by all-steel load-bearing radial tire tread slab base, and tread slab base can transmit the stress from road surface, improve the high speed performance of tire, can also absorb the part vibrations produced in tire running process.
Due to its infill system sizing material characteristic in existing all-steel load-bearing radial tire tread slab base, sizing material processing characteristics is poor, easily occurs tyre crown delamination, so its half parts are most important to finished product tire quality influence.
Summary of the invention
The object of the present invention is to provide a kind of all-steel load-bearing radial tire tread base sizing material and preparation method thereof, the sizing material that the method obtains has good heat-proof aging, low-heat-generation, tear-resistant performance, improves finished tire groove cracking simultaneously.
For achieving the above object, the present invention adopts following technical scheme:
A kind of all-steel load-bearing radial tire tread base sizing material, the raw materials by weight portion meter of this base portion sizing material comprises: natural gum 100 parts, peptizer 0 ~ 0.3 part, carbon black N234 30 ~ 45 parts, white carbon black 7 ~ 18 parts, silane coupling agent 1 ~ 4 part, 3 ~ 5 parts, zinc oxide, stearic acid 1 ~ 3 part, phenolic tackifying resins 1 ~ 3 part, petroleum resin 0.5 ~ 3 part, anti-aging agent 6PPD0.5 ~ 2 part, anti-aging agent RD 0.5 ~ 2 part, 1 ~ 3 part, sulphur, promotor 0.8 ~ 3 part and scorch retarder 0 ~ 0.3 part.
The raw materials by weight portion meter of this base portion sizing material comprises: natural gum 100 parts, peptizer 0.1 ~ 0.3 part, carbon black N234 30 ~ 45 parts, white carbon black 7 ~ 18 parts, silane coupling agent 1 ~ 4 part, 3 ~ 5 parts, zinc oxide, stearic acid 1 ~ 3 part, phenolic tackifying resins 1 ~ 3 part, petroleum resin 0.5 ~ 3 part, anti-aging agent 6PPD 1 ~ 2 part, anti-aging agent RD 0.5 ~ 2 part, 1 ~ 3 part, sulphur, promotor 0.8 ~ 3 part and scorch retarder 0.1 ~ 0.3 part.
Described peptizer is thiophenols softening agent or diaryl disulfide class peptizer.
The model of described thiophenols softening agent is SJ-103 or WP-10, and the model of diaryl disulfide class peptizer is P-22 or A86.
Described phenolic tackifying resins is T6000 resin or SL1402 resin; The model of petroleum resin is A100 or E1102.
Described silane coupling agent is silane coupling agent Si-69.
Described promotor is N tert butyl benzothiazole 2 sulfenamide.
Described scorch retarder is CTP.
Described natural gum be selected from SMR20, STR20, SIR20, TSR-20 rubber, smoke sheet rubber, TSR10 glue, No. 5 mark glue in one or more.
A preparation method for all-steel load-bearing radial tire tread base sizing material, comprises the following steps:
1) one section of carbon black rubber master batch preparation:
First, natural gum, peptizer are joined in Banbury mixer, be 30 ~ 50rpm at rotating speed, pressure is under 13.5 ~ 14.5MPa mixing 20 ~ 40 seconds, and then white carbon black, silane coupling agent, 1/3rd carbon black N234 are joined in Banbury mixer, be 30 ~ 50rpm at rotating speed, pressure is mixing under 13.5 ~ 14.5MPa, and lifting floating weight carries out discharge when temperature is 150 ~ 155 DEG C repeatedly, obtains one section of carbonblack master batch;
2) two sections of master batch preparations:
First joining in Banbury mixer by one section of carbonblack master batch, zinc oxide, stearic acid, phenolic tackifying resins, petroleum resin, anti-aging agent 6PPD and anti-aging agent RD, is 30 ~ 50rpm at Banbury mixer rotating speed, and pressure is under 13.5 ~ 14.5MPa mixing 20 ~ 40 seconds; Then adding residue carbon black, is 30 ~ 50rpm at Banbury mixer rotating speed, pressure be carry out under 13.5 ~ 14.5MPa mixing, and repeatedly promote floating weight when temperature is 150 ~ 155 DEG C, carry out discharge, obtain two sections of master batchs;
3) finished composition preparation:
First joining in Banbury mixer by two sections of master batchs, Sulfur, promotor and scorch retarder, is 20 ~ 25rpm at Banbury mixer rotating speed, and pressure is carry out mixing 30 ~ 40 seconds under 4 ~ 6MPa; Discharge when then repeatedly promoting upper top to fasten to temperature be 95 DEG C ~ 105 DEG C, obtains all-steel load-bearing radial tire tread base sizing material.
Compared with prior art, the beneficial effect that has of the present invention:
(1) polarity due to white carbon black in the present invention is stronger, difficult dispersion in natural gum, so adopt carbon black rubber master batch technique during rubber compounding in the present invention, namely first by natural gum, peptizer carries out mixing in Banbury mixer, then by white carbon black and 1/3rd carbon black, coupling agent carries out mixing, obtain one section of carbon black rubber master batch, then by one section of carbon black rubber master batch, zinc oxide, stearic acid, phenolic tackifying resins, petroleum resin, anti-aging agent and residue carbon black join in rubber unvulcanizate and carry out mixingly obtaining two sections of master batchs, such carbon black divide add for 2 times carry out mixing, ensure that carbon black/white carbon black fully can disperse in sizing material, and then improve dispersiveness and the homogeneity of sizing material, improve half parts processibility simultaneously, thus ensure the stable of quality product,
(2) the present invention adopts petroleum resin in the raw material of all-steel load-bearing radial tire tread base sizing material, ensure combining closely of tyre surface and belt, adopt simultaneously and first prepare one section of carbon black rubber master batch, then prepare the technique of two sections of rubber master batch, improve sizing material dispersiveness and workability.In addition, adding of petroleum resin, to improve in tire tread half parts, long-term viscosity, to make in moulding process tyre surface better and belt bond, thus improve the phenomenons such as tyre crown delamination.Sizing material of the present invention has good heat-proof aging, low-heat-generation, tear-resistant performance, improves finished tire groove cracking problem.
(3) preparation method of the present invention is simple, is beneficial to amplify to produce.
(4) what the present invention obtained 100% of the sub-radial ply tyre tread base material of all steel load stretches for 2.5MPa surely, and 300% stretches for 15.1MPa surely, and tensile strength is 29.5MPa, tensile yield is 505%, hardness is 60, and carbon black dispension degree is 9, all meets the index of industry.
Embodiment
Below by specific embodiment, the present invention is described in detail.
In the present invention, the main component of thiophenols softening agent is pentachlorothiophenol, and the main component of diaryl disulfide class peptizer is 2,2 '-dibenzoyl amido diphenyl disulfide.
Embodiment 1
A kind of all-steel load-bearing radial tire base portion sizing material, its raw materials by weight portion meter comprises: No. 5 mark 100 parts, glue, peptizer A86 0.1 part, carbon black N234 40 parts, white carbon black 15 parts, silane coupling agent Si-69 3 parts, 5 parts, zinc oxide, stearic acid 2 parts, phenolic tackifying resins T6000 1.35 parts, petroleum resin A100 1.5 parts, anti-aging agent 6PPD (N-(1, 3-dimethylbutyl)-N '-diphenyl-para-phenylene diamine) 1.3 parts, anti-aging agent RD (2, 2, 4-trimethylammonium-1, 2-dihyaroquinoline polymer) 0.6 part, 1.0 parts, sulphur, accelerator TBBS (N tert butyl benzothiazole 2 sulfenamide) 1.9 parts and anti-scorching agent CTP (N-cyclohexylthiophthalimide) 0.11 part.
The preparation method of above-mentioned all-steel load-bearing radial tire tread base sizing material, comprises the following steps:
1) preparation of one section of carbon black rubber master batch:
According to parts by weight, by No. 5 mark glue, peptizer A86 joins in Banbury mixer, is 30 ~ 50rpm at rotating speed, and pressure is under 14MPa mixing 20 ~ 40 seconds; And then white carbon black, 1/3rd carbon blacks, silane coupling agent Si-69 are joined in Banbury mixer, then rotating speed is 30 ~ 50rpm, and pressure is discharge when repeatedly to promote floating weight to temperature under 14MPa be 150 ~ 155 DEG C, obtains one section of carbonblack master batch material;
2) two sections of master batch preparations:
Joining in Banbury mixer by one section of carbonblack master batch material, zinc oxide, stearic acid, phenolic tackifying resins T6000, petroleum resin A100, anti-aging agent 6PPD and anti-aging agent RD, is 30 ~ 50rpm at rotating speed, and pressure is under 13.5 ~ 14.5MPa mixing 20 ~ 40 seconds; Then residue carbon black is added, and discharge when lifting floating weight to temperature is 150 ~ 150 DEG C repeatedly, obtain two sections of master batch material;
3) finished composition:
Joining in Banbury mixer by two sections of master batch material, Sulfur, promotor, scorch retarder, is 20 ~ 25rpm at rotating speed, and pressure is under 4-6MPa mixing 30 ~ 40 seconds; Then discharge when lifting floating weight to temperature is 95 DEG C ~ 105 DEG C repeatedly, mixing end, obtains all-steel load-bearing radial tire tread base sizing material.
Embodiment 1 obtains a kind of all-steel load-bearing radial tire tread base sizing material and has carried out performance test, and concrete experimental data is as following table:
Table 1
Note: above-mentioned stretching data carry out the tension test of vulcanized rubber according to standard GB/T/T528-2009, in the present embodiment, draw speed is 500mm/min, and probe temperature is room temperature.
As can be seen from the above table, 100% of the all-steel load-bearing radial tire tread base sizing material that the present invention obtains is stretched surely, 300% surely stretch all in the scope of index request, and tensile strength carbon black dispension degree is 9, meets index.
Embodiment 2
A kind of all-steel load-bearing radial tire base portion sizing material, its raw materials by weight portion meter comprises: natural gum SMR20 100 parts, peptizer SJ-103 0.3 part, carbon black N234 30 parts, white carbon black 18 parts, silane coupling agent Si-69 3.5 parts, 3 parts, zinc oxide, stearic acid 1.5 parts, phenolic tackifying resins SL1402 1 part, petroleum resin E1102 2 parts, anti-aging agent 6PPD 1 part, anti-aging agent RD 0.5 part, 2 parts, sulphur, accelerator TBBS 1 part and anti-scorching agent CTP 0.3 part.
The preparation method of above-mentioned all-steel load-bearing radial tire tread base sizing material, comprises the following steps:
1) preparation of one section of carbon black rubber master batch:
At temperature > is 35 DEG C, joining in Banbury mixer by natural gum SMR20, peptizer SJ-103, is 50rpm at rotating speed, and pressure is under 14MPa mixing 20 seconds; Then joining in Banbury mixer by white carbon black, 1/3rd carbon blacks, silane coupling agent Si-69, is 50rpm at rotating speed, and pressure is mixing under 14MPa and repeatedly promotes floating weight to temperature discharge when being 150 DEG C, obtains one section of carbonblack master batch material;
2) two sections of master batch preparations:
Joining in Banbury mixer by one section of carbonblack master batch material, zinc oxide, stearic acid, phenolic tackifying resins SL1402, petroleum resin E1102, anti-aging agent 6PPD and anti-aging agent RD, is 45rpm at Banbury mixer rotating speed, and pressure is under 14MPa mixing 20 seconds; Then adding residue carbon black, is 30rpm at Banbury mixer rotating speed, and pressure is carry out mixing under 14MPa and repeatedly promote floating weight to discharge during temperature 150 DEG C, obtains two sections of master batch material;
3) finished composition:
Joining in Banbury mixer by two sections of master batch material, Sulfur, accelerator TBBS, anti-scorching agent CTP, is 20rpm at rotating speed, and pressure is under 4MPa mixing 30 seconds; Then discharge when lifting floating weight to temperature is 95 DEG C repeatedly, mixing end, obtains all-steel load-bearing radial tire tread base sizing material.
Embodiment 3
A kind of all-steel load-bearing radial tire base portion sizing material, its raw materials by weight portion meter comprises: totally 100 parts, smoke sheet rubber and TSR10 glue, peptizer WP-10 0.2 part, carbon black N234 45 parts, white carbon black 10 parts, silane coupling agent Si-69 2.5 parts, 4 parts, zinc oxide, stearic acid 1 part, phenolic tackifying resins T6000 2 parts, petroleum resin A100 3 parts, anti-aging agent 6PPD0.5 part, anti-aging agent RD 1.5 parts, 2.5 parts, sulphur, accelerator TBBS 0.8 part.
The preparation method of above-mentioned all-steel load-bearing radial tire tread base sizing material, comprises the following steps:
1) preparation of one section of carbon black rubber master batch:
(1) at temperature is 40 DEG C, joining in Banbury mixer by smoke sheet rubber, TSR10 glue and peptizer WP-10, is 50rpm at rotating speed, and pressure is under 14MPa mixing 40 seconds; And then white carbon black, 1/3rd carbon blacks, silane coupling agent Si-69 are joined in rubber unvulcanizate, be then 35rpm at the rotating speed of Banbury mixer, pressure is discharge when repeatedly to promote floating weight to temperature under 14MPa be 155 DEG C, obtains one section of carbonblack master batch material;
2) two sections of master batch preparations:
Joining in Banbury mixer by one section of carbonblack master batch material, zinc oxide, stearic acid, phenolic tackifying resins T6000, petroleum resin A100, anti-aging agent 6PPD and anti-aging agent RD, is 48rpm at rotating speed, and pressure is under 14MPa mixing 35 seconds; Then adding residue carbon black, is 30rpm at Banbury mixer rotating speed, and pressure is carry out mixing under 13.5MPa and repeatedly promote floating weight to temperature discharge when being 155 DEG C, obtains two sections of master batch material;
3) finished composition:
Two sections of master batch material, Sulfur, promotor are joined in Banbury mixer, be 25rpm at Banbury mixer rotating speed, pressure is under 5MPa mixing 35 seconds, discharge when promoting floating weight repeatedly to promote floating weight to temperature after 3 seconds be 105 DEG C, mixing end, obtains all-steel load-bearing radial tire tread base sizing material.
Embodiment 4
A kind of all-steel load-bearing radial tire base portion sizing material, its raw materials by weight portion meter comprises: natural gum 100 parts, carbon black N234 35 parts, white carbon black 10 parts, silane coupling agent Si-69 1 part, 5 parts, zinc oxide, stearic acid 3 parts, phenolic tackifying resins T6000 3 parts, petroleum resin A100 0.5 part, anti-aging agent 6PPD 2 parts, anti-aging agent RD 2 parts, 1.5 parts, sulphur, accelerator TBBS 1.2 parts.Wherein, natural gum is the mixture of STR20, SIR20, TSR-20 and TSR10 glue arbitrary proportion.
The preparation method of above-mentioned all-steel load-bearing radial tire tread base sizing material, comprises the following steps:
1) preparation of one section of carbon black rubber master batch:
At temperature is 45 DEG C, join in Banbury mixer by No. 5 mark glue, be 40rpm at the rotating speed of Banbury mixer, pressure is under 13.5MPa mixing 25 seconds; Then white carbon black, 1/3rd carbon blacks, silane coupling agent Si-69 are joined in Banbury mixer, then the rotating speed of Banbury mixer be 33rpm, pressure is 14.56.MPa, discharge when repeatedly to promote floating weight to temperature be 155 DEG C, obtains one section of carbonblack master batch material;
2) two sections of master batch preparations:
Joining in Banbury mixer by one section of carbonblack master batch material, zinc oxide, stearic acid, phenolic tackifying resins T6000, petroleum resin A100, anti-aging agent 6PPD and anti-aging agent RD, is 50rpm at rotating speed, and pressure is under 13.5MPa mixing 40 seconds; Then add residue carbon black, the rotating speed of Banbury mixer be 35rpm, pressure is that repeatedly to promote floating weight to temperature be 150 DEG C of discharges to 13MPa, obtains two sections of master batch material;
3) finished composition:
Two sections of master batch material, Sulfur, promotor are joined in Banbury mixer, be 20rpm at rotating speed, pressure is under 5MPa mixing 30 seconds, discharge when then repeatedly to promote floating weight to temperature be 100 DEG C, mixing end, obtains all-steel load-bearing radial tire tread base sizing material.
Embodiment 5
A kind of all-steel load-bearing radial tire base portion sizing material, its raw materials by weight portion meter comprises: natural gum 100 parts, peptizer P-22 0.25 part, carbon black N234 35 parts, white carbon black 18 parts, silane coupling agent Si-69 4 parts, 5 parts, zinc oxide, stearic acid 1.5 parts, phenolic tackifying resins T6000 3 parts, petroleum resin A100 0.5 part, anti-aging agent 6PPD 1.5 parts, anti-aging agent RD 2 parts, 3 parts, sulphur, accelerator TBBS 3 parts.Wherein, natural gum is the mixture of STR20, SIR20, TSR-20 and TSR10 glue arbitrary proportion.
The preparation method of above-mentioned all-steel load-bearing radial tire tread base sizing material, comprises the following steps:
1) preparation of one section of carbon black rubber master batch:
At temperature is 38 DEG C, join in Banbury mixer by No. 5 mark glue, be 30rpm at the rotating speed of Banbury mixer, pressure is under 14.5MPa mixing 35 seconds; Again white carbon black, 1/3rd carbon blacks, silane coupling agent Si-69 are joined in Banbury mixer, then rotating speed be 40rpm, pressure is 13.5MPa, discharge when repeatedly to promote floating weight to temperature be 150 DEG C, obtains one section of carbonblack master batch material;
2) two sections of master batch preparations:
(1) joining in Banbury mixer by one section of carbonblack master batch material, zinc oxide, stearic acid, phenolic tackifying resins T6000, petroleum resin A100, anti-aging agent 6PPD and anti-aging agent RD, is 30rpm at rotating speed, and pressure is under 14.5MPa mixing 25 seconds; Then add residue carbon black, rotating speed be 50rpm, pressure promotes floating weight repeatedly to discharge during temperature 150 DEG C under being 14MPa, obtain two sections of master batch material;
3) finished composition:
Two sections of master batch material, Sulfur, promotor are joined in Banbury mixer, be 22rpm at rotating speed, pressure is under 6MPa mixing 40 seconds, discharge when promoting floating weight repeatedly to promote floating weight to temperature after 5 seconds be 100 DEG C, mixing end, obtains all-steel load-bearing radial tire tread base sizing material.
The present invention adopts carbon black rubber master batch technique, improves sizing material dispersiveness and processibility, ensures the homogeneity of sizing material, simultaneously the adding of petroleum resin, to improve in tire tread half parts/long-term viscosity, to make in moulding process tyre surface better and belt bond, thus improve the phenomenons such as tyre crown delamination.
Claims (10)
1. an all-steel load-bearing radial tire tread base sizing material, it is characterized in that, the raw materials by weight portion meter of this base portion sizing material comprises: natural gum 100 parts, peptizer 0 ~ 0.3 part, carbon black N23430 ~ 45 part, white carbon black 7 ~ 18 parts, silane coupling agent 1 ~ 4 part, 3 ~ 5 parts, zinc oxide, stearic acid 1 ~ 3 part, phenolic tackifying resins 1 ~ 3 part, petroleum resin 0.5 ~ 3 part, anti-aging agent 6PPD 0.5 ~ 2 part, anti-aging agent RD 0.5 ~ 2 part, 1 ~ 3 part, sulphur, promotor 0.8 ~ 3 part and scorch retarder 0 ~ 0.3 part.
2. all-steel load-bearing radial tire tread base sizing material according to claim 1, it is characterized in that: the raw materials by weight portion meter of this base portion sizing material comprises: natural gum 100 parts, peptizer 0.1 ~ 0.3 part, carbon black N23430 ~ 45 part, white carbon black 7 ~ 18 parts, silane coupling agent 1 ~ 4 part, 3 ~ 5 parts, zinc oxide, stearic acid 1 ~ 3 part, phenolic tackifying resins 1 ~ 3 part, petroleum resin 0.5 ~ 3 part, anti-aging agent 6PPD 1 ~ 2 part, anti-aging agent RD 0.5 ~ 2 part, 1 ~ 3 part, sulphur, promotor 0.8 ~ 3 part and scorch retarder 0.1 ~ 0.3 part.
3. all-steel load-bearing radial tire tread base sizing material according to claim 1 and 2, is characterized in that: described peptizer is thiophenols softening agent or diaryl disulfide class peptizer.
4. all-steel load-bearing radial tire tread base sizing material according to claim 3, is characterized in that: the model of described thiophenols softening agent is SJ-103 or WP-10, and the model of diaryl disulfide class peptizer is P-22 or A86.
5. all-steel load-bearing radial tire tread base sizing material according to claim 1 and 2, is characterized in that: described phenolic tackifying resins is T6000 resin or SL1402 resin; The model of petroleum resin is A100 or E1102.
6. all-steel load-bearing radial tire tread base sizing material according to claim 1 and 2, is characterized in that: described silane coupling agent is silane coupling agent Si-69.
7. all-steel load-bearing radial tire tread base sizing material according to claim 1 and 2, is characterized in that: described promotor is N tert butyl benzothiazole 2 sulfenamide.
8. all-steel load-bearing radial tire tread base sizing material according to claim 1 and 2, is characterized in that: described scorch retarder is CTP.
9. all-steel load-bearing radial tire tread base sizing material according to claim 1 and 2, is characterized in that: described natural gum be selected from SMR20, STR20, SIR20, TSR-20 rubber, smoke sheet rubber, TSR10 glue, No. 5 mark glue in one or more.
10. a preparation method for all-steel load-bearing radial tire tread base sizing material as claimed in claim 1, is characterized in that comprising the following steps:
1) one section of carbon black rubber master batch preparation:
First, natural gum, peptizer are joined in Banbury mixer, be 30 ~ 50rpm at rotating speed, pressure is under 13.5 ~ 14.5MPa mixing 20 ~ 40 seconds, and then white carbon black, silane coupling agent, 1/3rd carbon black N234 are joined in Banbury mixer, be 30 ~ 50rpm at rotating speed, pressure is mixing under 13.5 ~ 14.5MPa, and lifting floating weight carries out discharge when temperature is 150 ~ 155 DEG C repeatedly, obtains one section of carbonblack master batch;
2) two sections of master batch preparations:
First joining in Banbury mixer by one section of carbonblack master batch, zinc oxide, stearic acid, phenolic tackifying resins, petroleum resin, anti-aging agent 6PPD and anti-aging agent RD, is 30 ~ 50rpm at Banbury mixer rotating speed, and pressure is under 13.5 ~ 14.5MPa mixing 20 ~ 40 seconds; Then adding residue carbon black, is 30 ~ 50rpm at Banbury mixer rotating speed, pressure be carry out under 13.5 ~ 14.5MPa mixing, and repeatedly promote floating weight when temperature is 150 ~ 155 DEG C, carry out discharge, obtain two sections of master batchs;
3) finished composition preparation:
First joining in Banbury mixer by two sections of master batchs, Sulfur, promotor and scorch retarder, is 20 ~ 25rpm at Banbury mixer rotating speed, and pressure is carry out mixing 30 ~ 40 seconds under 4 ~ 6MPa; Discharge when then repeatedly promoting upper top to fasten to temperature be 95 DEG C ~ 105 DEG C, obtains all-steel load-bearing radial tire tread base sizing material.
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| CN111748132A (en) * | 2019-03-26 | 2020-10-09 | 福建省海安橡胶有限公司 | Formula and preparation method of all-steel giant engineering radial tire tread rubber |
| CN111607136A (en) * | 2020-06-30 | 2020-09-01 | 山东金宇轮胎有限公司 | All-steel radial tire base rubber formula and preparation method thereof |
| CN112126138A (en) * | 2020-08-07 | 2020-12-25 | 山东玲珑轮胎股份有限公司 | Antibacterial rubber composition and tire |
| CN112625309A (en) * | 2020-12-15 | 2021-04-09 | 四川凯力威科技股份有限公司 | Sizing material composition, sizing material, preparation method of sizing material and tire |
| CN112779787A (en) * | 2020-12-25 | 2021-05-11 | 贵州轮胎股份有限公司 | Fiber gum dipping system, steel wire rubberizing system and preparation method thereof |
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