CN108129706A - The triangular rubber core rubber composition of high-modulus low-heat-generation - Google Patents
The triangular rubber core rubber composition of high-modulus low-heat-generation Download PDFInfo
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- CN108129706A CN108129706A CN201810026701.0A CN201810026701A CN108129706A CN 108129706 A CN108129706 A CN 108129706A CN 201810026701 A CN201810026701 A CN 201810026701A CN 108129706 A CN108129706 A CN 108129706A
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Classifications
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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
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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
- B60C2001/005—Compositions of the bead portions, e.g. clinch or chafer rubber or cushion rubber
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
Abstract
The present invention relates to rubber for tire technical fields,Specifically a kind of triangular rubber core rubber composition of high-modulus low-heat-generation,Raw material composition includes in parts by weight,75~95 parts by weight of natural rubber,The neodymium series butadiene rubber of 5~25 parts by weight,The carbon black of 40~70 parts by weight,The white carbon of 5~20 parts by weight,The zinc oxide of 2.0~4.0 parts by weight of silane coupling agent between 1~5 parts by weight,The stearic acid of 1.0~3.0 parts by weight,1~3 parts by weight anti-aging agent RD,1.0~3.0 parts by weight antioxidant 4020s,1.0~3.0 parts by weight protection waxes,The tackifying resin of 3.0~6.0 parts by weight,The insoluble sulfur of 3~8 parts by weight,The accelerator NS of 1.0~2.0 parts by weight,0.1~0.5 parts by weight antiscorching agent N cyclohexylthiophthalimides.The present invention can directly single glue core rubber squeeze out, and be coated on outside wire loop, heat is low, flexibility good, possess the performance that has of gluing core, modulus is high, and rigidity is strong, have with lower glue core with performance, technological process is simplified, improves bead durability energy, ensures tire quality.
Description
Technical field
The present invention relates to rubber for tire technical field, the triangular rubber core rubber group of specifically a kind of high-modulus low-heat-generation
Close object.
Background technology
It is well known that all-steel load-bearing radial tire tyre bead portion construction is complicated, component is more, and be molded, vulcanization when by
Power deformation is larger, and being also easy to produce circle during later stage tire used splits, encloses the various mass defects such as sky, and triangular rubber core performance is entire
Tyre bead portion is particularly important, and all steel load tire largely uses upper and lower Composite Triangular glue cored structure at present, two different
Properties of rubber, on the one hand gluing core is soft, ensures the transition buffer between the rim of the mouth of sidewall, has preferable flexibility and relatively low heat
Property, another aspect lower glue core is hard, and rigid matching is carried out with wire loop, improves bead support, and upper and lower soft or hard glue core semi-finished product are adopted
It is realized with compound extruded technique.
In recent years as China's expressway construction is grown rapidly, running car road conditions greatly improve, and tubeless all steel carries
The demand of baryon radial tire constantly increases, and application is more and more extensive, and lower glue core hardness is high, and rigidity is strong, flexibility difference, without in
It is limited during tire and tubed tyre dress tire by lower glue core performance, and Composite Triangular glue core controlling of production process is complicated, up and down
Glue core problem out of proportion causes tyre bead mass defect frequently to occur.
There is part tire enterprise to report that fraction substituted compound adhesive core, but hardness and flexibility nothing up and down using single rubber core
Method, which balances, takes into account the performance of lower glue core, and still bead durability can be very low, for raw rubber and with neodymium series butadiene rubber and increase
The use exploitation single rubber core of white carbon, which replaces compound adhesive core to improve bead durability, not to be had been reported that so far.
Invention content
The purpose of the present invention is exactly to overcome the deficiencies of the prior art and provide a kind of triangular rubber core of high-modulus low-heat-generation
Rubber composition can directly single glue core rubber be squeezed out, is coated on outside wire loop, and heat is low, flexibility good, possess gluing core tool
Some performances, modulus are high, and rigidity is strong, have with lower glue core with performance, simplify technological process, improve bead durability
Can, ensure tire quality.
The present invention solve above-mentioned technical problem the technical solution adopted is that：A kind of triangular rubber core rubber of high-modulus low-heat-generation
Composition, which is characterized in that include in parts by weight, 75~95 parts by weight of natural rubber, the neodymium series of 5~25 parts by weight are along fourth rubber
Glue, the carbon black of 40~70 parts by weight, the white carbon of 5~20 parts by weight, silane coupling agent 2.0 between 1~5 parts by weight~
The zinc oxide of 4.0 parts by weight, the stearic acid of 1.0~3.0 parts by weight, 1~3 parts by weight anti-aging agent RD, 1.0~3.0 parts by weight are prevented
Old 4020,1.0~3.0 parts by weight protection wax of agent, the tackifying resin of 3.0~6.0 parts by weight, the insoluble sulfur of 3~8 parts by weight
Sulphur, the accelerator NS of 1.0~2.0 parts by weight, 0.1~0.5 parts by weight antiscorching agent N- cyclohexylthiophthalimides.
The invention has the advantages that can directly single glue core rubber squeeze out, it is coated on outside wire loop, heat is low, flexion
Property it is good, possess the performance that has of gluing core, modulus is high, and rigidity is strong, have with lower glue core with performance, simplify technique stream
Journey improves bead durability energy, ensures tire quality.
Specific embodiment
With reference to embodiment, the present invention will be further described：
Table one：Invention formula cooperation table（Embodiment, unit：Parts by weight）
Table two：It is formulated physical property
Table three：Finished product tire bead durability energy
Patent formulation is can be seen that from each embodiment to improve than original formulation hardness modulus, fatigue temperature rise is suitable, dynamic lag loss
It is not much different, and bead durability can improve more than 10% than normal tire.
Raw rubber of the present invention is mainly using natural rubber, and since natural rubber processing performance is good, viscosity is good；Increase special neodymium series
The butadiene rubber of catalysis, modulus is high, and flexibility good, heat is low, improves the flexural property of triangular rubber core during tire running；Make
With white carbon and silane coupling agent, the bonding for increasing triangle rubber and wire loop covers ability, reduces the heat generation of triangular rubber core, together
When with reference to carbon black improve glue core modulus, improve tyre bead non-deformability；Using the low accelerator dosage design of high sulphur, glue is improved
Core model amount also improves glue core rubber dynamic fatigue property simultaneously, reduces strain energy density at entire tyre bead portion stress concentration point,
Heat reduces, and bead durability can improve.The key technology of the present invention is to improve glue core model amount using white carbon, reduces triangle rubber
Core heat generation, and with special neodymium series butadiene rubber, the flexing fatigue performance of triangular rubber core is improved, while coordinate the spy of vulcanizing system
It is different to design to reach the hardness and modulus that single rubber core rubber composition after extrusion reach certain, have certain flexing fatigue
Performance simplifies the technological process of production, improves finished product tire bead durability energy, reduces market and pay compensation for rate.
Claims (1)
1. a kind of triangular rubber core rubber composition of high-modulus low-heat-generation, which is characterized in that raw material composition includes in parts by weight,
75~95 parts by weight of natural rubber, the neodymium series butadiene rubber of 5~25 parts by weight, the carbon black of 40~70 parts by weight, 5~20 parts by weight
White carbon, the zinc oxide of 2.0~4.0 parts by weight of silane coupling agent between 1~5 parts by weight, 1.0~3.0 parts by weight
Stearic acid, 1~3 parts by weight anti-aging agent RD, 1.0~3.0 parts by weight antioxidant 4020s, 1.0~3.0 parts by weight protection waxes, 3.0
The tackifying resin of~6.0 parts by weight, the insoluble sulfur of 3~8 parts by weight, the accelerator NS of 1.0~2.0 parts by weight, 0.1~
0.5 parts by weight antiscorching agent N- cyclohexylthiophthalimides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810026701.0A CN108129706A (en) | 2018-01-11 | 2018-01-11 | The triangular rubber core rubber composition of high-modulus low-heat-generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810026701.0A CN108129706A (en) | 2018-01-11 | 2018-01-11 | The triangular rubber core rubber composition of high-modulus low-heat-generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108129706A true CN108129706A (en) | 2018-06-08 |
Family
ID=62399671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810026701.0A Pending CN108129706A (en) | 2018-01-11 | 2018-01-11 | The triangular rubber core rubber composition of high-modulus low-heat-generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108129706A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020037950A1 (en) * | 2000-07-26 | 2002-03-28 | Yoichi Mizuno | Rubber composition for tire and pneumatic tire |
| CN102492187A (en) * | 2011-12-08 | 2012-06-13 | 四川轮胎橡胶（集团）股份有限公司 | Tire bead protective rubber with excellent flexibility |
| CN102731846A (en) * | 2011-04-15 | 2012-10-17 | 住友橡胶工业株式会社 | Rubber composition for tire and tire using the same |
| CN106832448A (en) * | 2017-02-22 | 2017-06-13 | 双钱集团上海轮胎研究所有限公司 | A kind of tread rubber for preparing high-performance tire |
| CN107236157A (en) * | 2017-07-27 | 2017-10-10 | 江苏通用科技股份有限公司 | Green tire tread rubber and preparation method thereof |
-
2018
- 2018-01-11 CN CN201810026701.0A patent/CN108129706A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020037950A1 (en) * | 2000-07-26 | 2002-03-28 | Yoichi Mizuno | Rubber composition for tire and pneumatic tire |
| CN102731846A (en) * | 2011-04-15 | 2012-10-17 | 住友橡胶工业株式会社 | Rubber composition for tire and tire using the same |
| CN102492187A (en) * | 2011-12-08 | 2012-06-13 | 四川轮胎橡胶（集团）股份有限公司 | Tire bead protective rubber with excellent flexibility |
| CN106832448A (en) * | 2017-02-22 | 2017-06-13 | 双钱集团上海轮胎研究所有限公司 | A kind of tread rubber for preparing high-performance tire |
| CN107236157A (en) * | 2017-07-27 | 2017-10-10 | 江苏通用科技股份有限公司 | Green tire tread rubber and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180608 |