CN109251375A - Radial-ply tyre tread rubber composition containing isopthalic dihydrazide and preparation method thereof - Google Patents
Radial-ply tyre tread rubber composition containing isopthalic dihydrazide and preparation method thereof Download PDFInfo
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- CN109251375A CN109251375A CN201811241876.XA CN201811241876A CN109251375A CN 109251375 A CN109251375 A CN 109251375A CN 201811241876 A CN201811241876 A CN 201811241876A CN 109251375 A CN109251375 A CN 109251375A
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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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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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Abstract
The present invention relates to rubber for tire technical field, specifically a kind of radial-ply tyre tread rubber composition and preparation method thereof containing isopthalic dihydrazide.It is prepared by the raw material of following weight parts, 100 parts of polyisoprene, 30-50 parts of carbon black, 2-10 parts of petroleum plasticizer, 5-20 parts of silica, 1-3 parts of stearic acid, 2-5 parts of zinc oxide, 1-4 parts of protection wax, 1-3 parts of silane coupling agent, 0.2-1 parts of isopthalic dihydrazide, N- tert-butyl -0-3 parts of 2-[4-morpholinodithio base sulfenamide, N, N’It 1-3 parts of dimethyl-p-phenylenediamine, 1-4 parts of sulphur powder, 0.1-1 parts of antiscorching agent, is made through being kneaded.
Description
Technical field
The present invention relates to rubber for tire technical field, specifically a kind of giant-scale engineering containing isopthalic dihydrazide
Noon tire tread rubber composition.
Background technique
It is well known that giant-scale engineering radial-ply tyre, because cross dimensions is thicker, the larger and operating environment of load is severe, total to tire
The intensity of body endurance quality, thermogenesis performance and sizing material all has higher requirement, and the heat that tire accumulates in use is not
It easily sheds, excessive heat accumulation will lead to tire delamination failure, and the heat for reducing tire is especially heavy to Life of Tyre is promoted
It wants, therefore, needs that there is lower tan δ as the rubber composition for tire tread etc., in addition to this, for tyre surface
Rubber composition should also have good wear-resisting property.In existing giant-scale engineering radial-ply tyre production process, dynamic heat build up is big, energy
Amount loss is high, and Life of Tyre is undesirable.
Summary of the invention
The object of the invention is to a kind of containing the huge of isopthalic dihydrazide in order to overcome the deficiencies of the prior art and provide
Engineering radial tire tread rubber composition has excellent physical mechanical property, improves the dispersibility of carbon black, reduce loss because
Son improves elasticity, tensile strength, and improve wearability reduces dynamic heat build up, improves fatigue life.
The present invention solve above-mentioned technical problem the technical solution adopted is that: a kind of giant-scale engineering containing isopthalic dihydrazide
Radial-ply tyre tread rubber composition, it is characterised in that: be prepared by the raw material of following weight parts, 100 parts of polyisoprene, charcoal
It is 30-50 parts black, 2-10 parts of petroleum plasticizer, 5-20 parts of silica, 1-3 parts of stearic acid, 2-5 parts of zinc oxide, protection wax 1-4
Part, 1-3 parts of silane coupling agent, 0.2-1 parts of isopthalic dihydrazide, N- tert-butyl -0-3 parts, N of 2-[4-morpholinodithio base sulfenamide,
1-3 parts of N '-dimethyl p-phenylenediamine, 1-4 parts of sulphur powder, 0.1-1 parts of antiscorching agent.
A method of preparing the aforementioned radial-ply tyre tread rubber composition containing isopthalic dihydrazide, which is characterized in that
The following steps are included:
One section of mixing: starting mixer (GK400), the rotor speed that mixer is arranged is 50-55rpm, and rubber, hard is added
Resin acid, zinc oxide, IDH are kneaded 10-60s；Bolt is risen, carbon black is added and presses bolt, is kneaded 20-150s, rises bolt, petroleum plasticising is added
Bolt is pressed in agent, is kneaded 30-70s；It is kneaded 30-160s, controls 155-165 DEG C of dumping of temperature；
It parks for the first time: being kneaded one section of obtained rubber master batch for one section and put in air, cooled to room temperature；
Two-stage mixing: starting mixer (GK400), the rotor speed that mixer is arranged is 42-47rpm, is weighed by weight
One section of rubber master batch is added in mixer and is kneaded 10-20s；Bolt is risen, silica and small powder is added, presses bolt, is kneaded 10-50s；Liter bolt,
Press bolt；It is kneaded 50-200s dumping；
Park for the second time: two sections of rubber master batch that two-stage mixing is obtained are put in air, natural cooling；
Three-stage mixing: starting mixer (GK400), the rotor speed that mixer is arranged is 37-43rpm, and mixing is obtained
Two-stage mixing glue is added mixer and is kneaded, and mentions bolt twice, bolt is pressed respectively to be kneaded 30-40s, temperature reaches 135-145 DEG C of dumping；
Third time is parked: three sections of rubber master batch that three-stage mixing is obtained are put in air, natural cooling；
Refining eventually: starting mixer (GK255), setting closed-smelting machine rotor revolving speed is 16-20rpm, by three sections of rubber master batch, the tertiary fourth of N-
Base -2-[4-morpholinodithio base sulfenamide, N, N '-dimethyl p-phenylenediamine, sulphur powder, antiscorching agent are added mixer mixing 30s and mention
Bolt then proceedes to mixing 40s and mentions bolt, continues to be kneaded to 105 DEG C of dumpings, total mixing time is 140-155s.
The invention has the advantages that isopthalic dihydrazide is during sizing material high-temperature mixing, the high-efficiency activated base of hydrazides
Group can be chemically reacted with natural rubber molecular end aldehyde radical, be modified to natural rubber molecule chain end, and dynamic is reduced
Heat reduces energy loss, improves Life of Tyre.
Specific embodiment
The IDH has high-efficiency activated group, and 224 DEG C of fusing point, specific gravity 1.344g/cm can significantly improve sizing material bullet
Property, reduce sizing material heat.
The reaction mechanism is as follows with natural gum by IDH:
Preparation step of the invention is as follows:
One section of mixing: starting mixer (GK400), the rotor speed that mixer is arranged is 50-55rpm, and rubber, hard is added
Resin acid, zinc oxide, IDH are kneaded 10-60s；Bolt is risen, carbon black is added and presses bolt, is kneaded 20-150s, rises bolt, petroleum plasticising is added
Bolt is pressed in agent, is kneaded 30-70s；It is kneaded 30-160s, controls 155-165 DEG C of dumping of temperature；
It parks for the first time: being kneaded one section of obtained rubber master batch for one section and put in air, cooled to room temperature；
Two-stage mixing: starting mixer (GK400), the rotor speed that mixer is arranged is 42-47rpm, is weighed by weight
One section of rubber master batch is added in mixer and is kneaded 10-20s；Bolt is risen, silica and small powder is added, presses bolt, is kneaded 10-50s；Liter bolt,
Press bolt；It is kneaded 50-200s dumping；
Park for the second time: two sections of rubber master batch that two-stage mixing is obtained are put in air, natural cooling；
Three-stage mixing: starting mixer (GK400), the rotor speed that mixer is arranged is 37-43rpm, and mixing is obtained
Two-stage mixing glue is added mixer and is kneaded, and mentions bolt twice, bolt is pressed respectively to be kneaded 30-40s, temperature reaches 135-145 DEG C of dumping；
Third time is parked: three sections of rubber master batch that three-stage mixing is obtained are put in air, natural cooling；
Refining eventually: starting mixer (GK255), setting closed-smelting machine rotor revolving speed is 16-20rpm, by three sections of rubber master batch, the tertiary fourth of N-
Base -2-[4-morpholinodithio base sulfenamide, N, N '-dimethyl p-phenylenediamine, sulphur powder, antiscorching agent are added mixer mixing 30s and mention
Bolt then proceedes to mixing 40s and mentions bolt, continues to be kneaded to 105 DEG C of dumpings, total mixing time is 140-155s.
The cooperation of specific embodiment inventive composition and formula physical property table, durable test are shown in Table 1, table 2,3 institute of table respectively
Show:
Table 1: inventive composition cooperation table is following (unit of each material content are as follows: parts by weight):
| Title material | Reference examples | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| 20# marks glue | 100 | 100 | 100 | 100 | 100 |
| N220 carbon black | 40 | 40 | 40 | 40 | 40 |
| White carbon black | 18 | 18 | 18 | 18 | 18 |
| Organosilicon mixture | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 |
| Environment protection oil | 4 | 4 | 4 | 4 | 4 |
| Zinc oxide | 3 | 3 | 3 | 3 | 3 |
| Stearic acid | 2 | 2 | 2 | 2 | 2 |
| Antioxidant 4020 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| Protection wax | 2 | 2 | 2 | 2 | 2 |
| IDH | — | 0.2 | 0.4 | 0.6 | 0.8 |
| Accelerator NS | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
| Sulphur S | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
| Antioxidant D TPD | 1 | 1 | 1 | 1 | 1 |
| Anti-scorching agent CTP | 0.3 | 0.30 | 0.3 | 0.3 | 0.3 |
By reference examples and embodiment rubber composition under the conditions of vulcanization of 130 DEG C of * 120min using vulcanizing press into
Row vulcanization carries out your the A test that continues according to standard GB/T/T 531-1999, and GB/T 528-1998 is drawn according to national standards
Stretch performance test.
Table 2: formula physical property table
| 130 DEG C of vulcanization * 120min | Reference examples | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Shao Er A type hardness tester | 63 | 63 | 64 | 64 | 66 |
| Tearing strength/N/mm | 107 | 107 | 105 | 82 | 113 |
| 100% stress at definite elongation/Mpa | 2.4 | 2.6 | 2.7 | 2.8 | 2.7 |
| 300% stress at definite elongation/Mpa | 12.5 | 14.2 | 14.1 | 14.7 | 14 |
| Tensile strength/Mpa | 24.2 | 24.2 | 25.7 | 25.3 | 24.5 |
| Elongation at break/% | 540 | 489 | 523 | 501 | 491 |
| Permanent deformation/% | 20 | 12 | 16 | 16 | 16 |
| Room temperature rebound/% | 48 | 50 | 50 | 51 | 51 |
| 100 DEG C of thermoresilience/% | 62 | 63 | 64 | 63 | 65 |
| Compression heat generation | 26.5 | 24.7 | 24.7 | 23.9 | 21.1 |
| DIN abrasion index/% | 88 | 89 | 92 | 91 | 90 |
| 60℃tanδ | 0.1325 | 0.1086 | 0.0876 | 0.0901 | 0.0826 |
Compared with reference examples, after adding IDH, the hardness of sizing material, tensile strength, rebound, wear-resisting property have promotion, raw
Heat drop is low.By comparison, preferred embodiment 2 uses 0.4 part of IDH formula system, and heat reduces by 34%, and rebound, abrasion index mention
It rises, wear-resisting property improves.
Table 3: inventive composition tyres durable performance data
27.00R49 specification tyre is manufactured experimently using embodiment 2 and reference examples tire carries out durable contrast test:
| Reference examples | Embodiment 2 | |
| The durable test time | 308h | 342h |
Entrucking road test
4 27.00R49TB526S specifications test fetal hairs of scheme trial-production are formulated according to embodiment 2 to carry out toward certain domestic mine
Road test has run 2186h at present, without exception, and the later period, we will carry out continuing tracking.
Claims (2)
1. a kind of giant-scale engineering radial-ply tyre tread rubber composition containing isopthalic dihydrazide, it is characterised in that: by following heavy
The raw material of amount part is prepared, and 100 parts of polyisoprene, 30-50 parts of carbon black, 2-10 parts of petroleum plasticizer, silica 5-
20 parts, 1-3 parts of stearic acid, 2-5 parts of zinc oxide, 1-4 parts of protection wax, 1-3 parts of silane coupling agent, 0.2-1 parts of isopthalic dihydrazide,
N- tert-butyl -0-3 parts of 2-[4-morpholinodithio base sulfenamide, N, N’It is 1-3 parts of dimethyl-p-phenylenediamine, 1-4 parts of sulphur powder, anti-scorch
0.1-1 parts of agent.
2. a kind of method for preparing the radial-ply tyre tread rubber composition described in claim 1 containing isopthalic dihydrazide, special
Sign is, comprising the following steps:
One section of mixing: starting mixer (GK400), the rotor speed that mixer is arranged is 50-55rpm, and rubber, tristearin is added
Acid, zinc oxide, IDH are kneaded 10-60s；Bolt is risen, carbon black is added and presses bolt, is kneaded 20-150s, rises bolt, petroleum plasticizer is added,
Bolt is pressed, 30-70s is kneaded；It is kneaded 30-160s, controls 155-165 DEG C of dumping of temperature；
It parks for the first time: being kneaded one section of obtained rubber master batch for one section and put in air, cooled to room temperature；
Two-stage mixing: starting mixer (GK400), the rotor speed that mixer is arranged is 42-47rpm, weighs one section by weight
Rubber master batch is added in mixer and is kneaded 10-20s；Bolt is risen, silica and small powder is added, presses bolt, is kneaded 10-50s；Rise bolt, pressure
Bolt；It is kneaded 50-200s dumping；
Park for the second time: two sections of rubber master batch that two-stage mixing is obtained are put in air, natural cooling；
Three-stage mixing: starting mixer (GK400), the rotor speed that mixer is arranged is 37-43rpm, and mixing is obtained two sections
Rubber compound is added mixer and is kneaded, and mentions bolt twice, bolt is pressed respectively to be kneaded 30-40s, temperature reaches 135-145 DEG C of dumping；
Third time is parked: three sections of rubber master batch that three-stage mixing is obtained are put in air, natural cooling；
Refining eventually: starting mixer (GK255), setting closed-smelting machine rotor revolving speed is 16-20rpm, by three sections of rubber master batch, N- tert-butyl-
2-[4-morpholinodithio base sulfenamide, N, N’Dimethyl-p-phenylenediamine, sulphur powder, antiscorching agent are added mixer mixing 30s and mention bolt,
It then proceedes to mixing 40s and mentions bolt, continue to be kneaded to 105 DEG C of dumpings, total mixing time is 140-155s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241876.XA CN109251375A (en) | 2018-10-24 | 2018-10-24 | Radial-ply tyre tread rubber composition containing isopthalic dihydrazide and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241876.XA CN109251375A (en) | 2018-10-24 | 2018-10-24 | Radial-ply tyre tread rubber composition containing isopthalic dihydrazide and preparation method thereof |
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| CN109251375A true CN109251375A (en) | 2019-01-22 |
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| CN201811241876.XA Withdrawn CN109251375A (en) | 2018-10-24 | 2018-10-24 | Radial-ply tyre tread rubber composition containing isopthalic dihydrazide and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6644962B1 (en) * | 2019-03-29 | 2020-02-12 | 住友理工株式会社 | Anti-vibration rubber composition and anti-vibration rubber member |
| CN111471221A (en) * | 2020-04-13 | 2020-07-31 | 中策橡胶集团有限公司 | High-stiffness low-viscosity tire rubber compound, preparation method thereof and semi-steel radial tire |
| WO2020202597A1 (en) * | 2019-03-29 | 2020-10-08 | 住友理工株式会社 | Anti-vibration rubber composition and anti-vibration rubber member |
| CN111777804A (en) * | 2020-06-01 | 2020-10-16 | 中策橡胶集团有限公司 | High-performance all-steel radial tire tread rubber composition, mixing method thereof and tire |
| CN113308031A (en) * | 2021-06-29 | 2021-08-27 | 三角（威海）华盛轮胎有限公司 | Rubber composition for tire base of off-highway giant mining dump truck and tire thereof |
| CN113817271A (en) * | 2021-10-26 | 2021-12-21 | 江苏麒祥高新材料有限公司 | Dihydrazide pre-dispersed masterbatch particle composition and preparation method thereof |
| CN114316401A (en) * | 2022-01-14 | 2022-04-12 | 泰凯英(青岛)专用轮胎技术研究开发有限公司 | Cutting-resistant low-heat-generation tread rubber of mining engineering tire and preparation method thereof |
| CN114854110A (en) * | 2022-05-07 | 2022-08-05 | 大冢材料科技（上海）有限公司 | High-fatigue-resistance rubber composition for tire and preparation method and application thereof |
| CN115011000A (en) * | 2022-05-07 | 2022-09-06 | 大冢材料科技（上海）有限公司 | Rubber composition for aging resistance and fatigue damage resistance of truck tire and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102257056A (en) * | 2008-12-23 | 2011-11-23 | 米其林技术公司 | Composition based on natural rubber and a reinforcing inorganic filler comprising a dihydrazide |
| CN102634089A (en) * | 2012-05-02 | 2012-08-15 | 三角轮胎股份有限公司 | Tyre tread rubber composition used in hard mine area and production method of tyre tread rubber composition in hard mine area |
| WO2016111233A1 (en) * | 2015-01-08 | 2016-07-14 | 株式会社ブリヂストン | Rubber composition, tread member and pneumatic tire, and method for producing rubber composition |
-
2018
- 2018-10-24 CN CN201811241876.XA patent/CN109251375A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102257056A (en) * | 2008-12-23 | 2011-11-23 | 米其林技术公司 | Composition based on natural rubber and a reinforcing inorganic filler comprising a dihydrazide |
| CN102634089A (en) * | 2012-05-02 | 2012-08-15 | 三角轮胎股份有限公司 | Tyre tread rubber composition used in hard mine area and production method of tyre tread rubber composition in hard mine area |
| WO2016111233A1 (en) * | 2015-01-08 | 2016-07-14 | 株式会社ブリヂストン | Rubber composition, tread member and pneumatic tire, and method for producing rubber composition |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6644962B1 (en) * | 2019-03-29 | 2020-02-12 | 住友理工株式会社 | Anti-vibration rubber composition and anti-vibration rubber member |
| WO2020202597A1 (en) * | 2019-03-29 | 2020-10-08 | 住友理工株式会社 | Anti-vibration rubber composition and anti-vibration rubber member |
| CN111471221A (en) * | 2020-04-13 | 2020-07-31 | 中策橡胶集团有限公司 | High-stiffness low-viscosity tire rubber compound, preparation method thereof and semi-steel radial tire |
| CN111471221B (en) * | 2020-04-13 | 2022-07-15 | 中策橡胶集团股份有限公司 | High-stiffness low-viscosity tire rubber compound, preparation method thereof and semi-steel radial tire |
| CN111777804A (en) * | 2020-06-01 | 2020-10-16 | 中策橡胶集团有限公司 | High-performance all-steel radial tire tread rubber composition, mixing method thereof and tire |
| CN113308031A (en) * | 2021-06-29 | 2021-08-27 | 三角（威海）华盛轮胎有限公司 | Rubber composition for tire base of off-highway giant mining dump truck and tire thereof |
| CN113817271A (en) * | 2021-10-26 | 2021-12-21 | 江苏麒祥高新材料有限公司 | Dihydrazide pre-dispersed masterbatch particle composition and preparation method thereof |
| CN114316401A (en) * | 2022-01-14 | 2022-04-12 | 泰凯英(青岛)专用轮胎技术研究开发有限公司 | Cutting-resistant low-heat-generation tread rubber of mining engineering tire and preparation method thereof |
| CN114316401B (en) * | 2022-01-14 | 2023-09-22 | 泰凯英(青岛)专用轮胎技术研究开发有限公司 | Cutting-resistant low-heat-generation mining engineering tire tread rubber and preparation method thereof |
| CN114854110A (en) * | 2022-05-07 | 2022-08-05 | 大冢材料科技（上海）有限公司 | High-fatigue-resistance rubber composition for tire and preparation method and application thereof |
| CN115011000A (en) * | 2022-05-07 | 2022-09-06 | 大冢材料科技（上海）有限公司 | Rubber composition for aging resistance and fatigue damage resistance of truck tire and preparation method thereof |
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