CN111410781A - Automobile tire - Google Patents
Automobile tire Download PDFInfo
- Publication number
- CN111410781A CN111410781A CN202010318823.4A CN202010318823A CN111410781A CN 111410781 A CN111410781 A CN 111410781A CN 202010318823 A CN202010318823 A CN 202010318823A CN 111410781 A CN111410781 A CN 111410781A
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- China
- Prior art keywords
- parts
- acid
- peroxide
- automobile tire
- rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C08L9/06—Copolymers with styrene
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/48—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
- C08G77/54—Nitrogen-containing linkages
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
Abstract
The invention relates to an automobile tire, wherein a tread material of the automobile tire is a rubber composition comprising the following components in parts by weight: the matrix rubber is: 65-75 parts of styrene-butadiene rubber and 25-35 parts of natural rubber; the functional filler is: 30-60 parts of modified fumed silica and 30-60 parts of carbon black; the tackifying resin is: 10-20 parts of specific boron-hybridized methyl vinyl MQ silicon resin and 5-10 parts of synthetic terpene resin; 5-10 parts of a vulcanizing agent and 2-5 parts of a vulcanization accelerator. The automobile tire of the invention has high elasticity, self-flame resistance, good wear resistance, excellent ground gripping performance and ground gripping durability after being cured, and has wide application prospect in the field of medium and large automobile tires.
Description
Technical Field
The invention relates to a divisional application of Chinese patent 'a rubber composition for treads of medium and large automobile tires', the application date is 2017, 10 and 31, and the application number is 201711049174.7. The invention relates to an automobile tire, and belongs to the technical field of automobiles.
Technical Field
The tire is one of the most important components of the automobile, the main functions of the tire are to support the whole weight of the automobile, bear the load of the automobile, transmit the torque force of traction and braking, ensure the adhesion between the wheel and the road surface, and the tire is mostly made of rubber materials. However, in recent years, with the development of economy, the number of automobiles is increasing, and the requirement on rubber is increasing, so that not only the wear resistance of the automobile is required, but also the comfort of the automobile is pursued, so that how to reduce and absorb the shock and impact force of the automobile during driving, prevent the automobile parts from being subjected to severe shock and early damage, highly adapt to the high-speed performance of the automobile and reduce the noise during driving is required, and the requirement on rubber tires is increasing, and the technology is required to be improved, and the performance is improved.
Chinese patent CN03818135.5 provides a crosslinkable or crosslinked rubber composition for use in a tire tread having improved wear resistance, and also discloses said tread and tire incorporating said rubber composition, said rubber composition comprising a plasticizing resin having a number average molecular weight of 400-2000g/mol being characterized in that it comprises units derived from vinylcyclohexene. However, the rubber composition of the present invention is required to have improved flame retardancy and grip performance.
Disclosure of Invention
In order to overcome the defects and shortcomings of the prior art, the invention aims to provide a rubber composition for a tread of a medium-large automobile tire.
The invention relates to a rubber composition for treads of medium and large automobile tires, which comprises the following components in parts by weight: the matrix rubber is: 65-75 parts of styrene-butadiene rubber and 25-35 parts of natural rubber; the functional filler is: 30-60 parts of modified fumed silica and 30-60 parts of carbon black; the tackifying resin is: 10-20 parts of specific boron-hybridized methyl vinyl MQ silicon resin and 5-10 parts of synthetic terpene resin; 5-10 parts of a vulcanizing agent and 2-5 parts of a vulcanization accelerator.
The specific boron hybridized methyl vinyl MQ silicon resin takes-O-B-O, -O-Si-O as a framework and vinyl as an active functional group, and the preparation method comprises the following steps: adding 15 parts of orthosilicate ester, 4-8 parts of methylalkoxysilane, 5-10 parts of boric acid derivative, 10-20 parts of dimethylvinylchlorosilane and 20 parts of xylene into a reactor, heating to 70-80 ℃, adding 10 parts of 10% acid catalyst, and reacting for 2-4 hours to obtain hydrolysate; adding caustic soda into the hydrolysate to adjust the pH value to 10, heating the hydrolysate to 80 ℃, carrying out polycondensation reaction for 1h by reduced pressure distillation, then adding calcium sulfate, heating to 120 ℃, and continuing to carry out polycondensation reaction for 1h by reduced pressure distillation to obtain a polycondensation product; washing the polycondensation product with deionized water to neutrality, and vacuum drying to obtain the specific boron-hybridized methyl vinyl MQ silicon resin.
The molecular weight of the styrene-butadiene rubber is 1000000-5000000.
The carbon black is preferably 100 mesh sieve residue<0.1% and nitrogen adsorption specific surface area of 100-130 m2(ii) 120-180 mg/g of iodine adsorption amount.
The melting point of the synthetic terpene resin is 120-150 ℃.
The vulcanizing agent is at least one of dibenzoyl peroxide, tetramethyl thiuram disulfide, barium peroxide, cadmium peroxide, magnesium peroxide, zinc peroxide, bis (2, 4-dichloroformyl) peroxide, di-tert-butyl peroxide, 1, 4-bis-tert-butylperoxyisopropyl benzene, dicumyl peroxide, tert-butyl perbenzoate, tert-butyl cumyl peroxide, dicumyl peroxide, tert-butyl isopropyl carbonate and tert-butyl peroxycarbonate.
The vulcanization accelerator is at least one of zinc dibutyl dithiocarbamate, hexamethylene diamine carbamate, ethylene diamine formate and N, N' -m-phenylene bismaleimide.
The modified fumed silica is fumed silica modified by KH 570.
The methylalkoxysilane is at least one of hexamethyldisiloxane, methyltrimethoxysilane, methyltriethoxysilane, dimethyldimethoxysilane and dimethyldiethoxysilane.
The boric acid derivative is at least one of boric acid, phenylboronic acid, tributyl borate, tri-n-propyl borate, triisopropyl borate, trimethyl borate, 3-fluorophenylboronic acid, sec-butyl boronic acid, 4-fluorophenylboronic acid, 3-methoxyphenylboronic acid, n-butyl boronic acid and 2-methoxyphenylboronic acid.
The acidic catalyst is at least one of hydrochloric acid, hydrobromic acid and hydroiodic acid.
Compared with the prior art, the rubber composition for the tread of the medium and large automobile tire has the following advantages:
(1) styrene-butadiene rubber and natural rubber are used as matrixes, and methyl vinyl MQ silicon resin containing double bonds, vinyl modified fumed silica and rubber are used as auxiliary materials, so that the composition can be crosslinked into a three-dimensional network structure under the action of a free radical vulcanizing agent and a vulcanization accelerator, and the rubber is ensured to have high elasticity.
(2) KH570 modified fumed silica is selected, carbon-carbon double bonds are combined on the surface of the fumed silica through-O-Si-O-, and can participate in the chemical vulcanization process of the rubber, and the fumed silica and the rubber are combined into a whole through chemical bonds, so that the tire rubber of the composition has high wear resistance.
(3) Specific boron-hybridized methyl vinyl MQ silicon resin and terpene resin are used as tackifying resin, wherein the effect of tackifying by the boron-hybridized methyl vinyl MQ silicon resin is better than that of the traditional tackifying resin.
(4) The boron-hybridized methyl vinyl MQ silicon resin is tackified, and simultaneously, the characteristic functional group vinyl can be crosslinked with the vinyl of the main rubber, and the vulcanized rubber tire has improved gripping performance and gripping durability in a balanced manner due to the main chain of the boron-hybridized methyl vinyl MQ silicon resin in which-O-B-O-, -O-Si-O-with larger bond energy is adopted.
(5) The boron-hybridized methyl vinyl MQ silicon resin takes-O-B-O-, -O-Si-O-as a framework, has a self-flame-retardant effect, and does not need to be additionally added with a flame retardant.
Detailed Description
The rubber composition for a tread of a large or medium-sized automobile tire according to the present invention will be further described with reference to the following examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention.
Example 1
The invention relates to a rubber composition for treads of medium and large automobile tires, which specifically comprises the following components: the matrix rubber is: 65 parts of styrene-butadiene rubber, 35 parts of natural rubber; the functional filler is: 30 parts of KH570 modified fumed silica and 60 parts of carbon black; the tackifying resin is: 10 parts of specific boron-hybridized methyl vinyl MQ silicon resin and 10 parts of synthetic terpene resin; 8 parts of dibenzoyl peroxide and 4 parts of zinc dibutyl dithiocarbamate.
Wherein, the specific boron hybridized methyl vinyl MQ silicon resin takes-O-B-O, -O-Si-O as a main chain and vinyl as an active functional group, and the preparation method comprises the following steps: adding 15 parts of orthosilicate ester, 4 parts of hexamethyldisiloxane, 10 parts of tributyl borate, 10 parts of dimethylvinylchlorosilane and 20 parts of xylene into a reactor, heating to 80 ℃, then adding 10 parts of 10% acid hydrochloric acid, and reacting for 2-4 hours to obtain a hydrolysate; adding caustic soda into the hydrolysate to adjust the pH value to 10, heating the hydrolysate to 80 ℃, carrying out polycondensation reaction for 1h by reduced pressure distillation, then adding calcium sulfate, heating to 120 ℃, and continuing to carry out polycondensation reaction for 1h by reduced pressure distillation to obtain a polycondensation product; washing the polycondensation product with deionized water to neutrality, and vacuum drying to obtain the specific boron-hybridized methyl vinyl MQ silicon resin.
Example 2
The invention relates to a rubber composition for a tread of a medium-large automobile tire, which comprises the following specific components: wherein the matrix rubber is as follows: 75 parts of styrene-butadiene rubber, 25 parts of natural rubber; the functional filler is: 60 parts of KH570 modified fumed silica and 30 parts of carbon black; the tackifying resin is: 20 parts of specific boron-hybridized methyl vinyl MQ silicon resin and 5 parts of synthetic terpene resin; 5 parts of tetramethylthiuram disulfide and 5 parts of ethylene diamine formate.
Wherein, the specific boron hybridized methyl vinyl MQ silicon resin takes-O-B-O, -O-Si-O as a main chain and vinyl as an active functional group, and the preparation method comprises the following steps: adding 15 parts of orthosilicate ester, 8 parts of methyltriethoxysilane, 5 parts of triisopropyl borate, 20 parts of dimethylvinylchlorosilane and 20 parts of xylene into a reactor, heating to 70 ℃, adding 10 parts of 10% hydrobromic acid, and reacting for 2-4 hours to obtain a hydrolysate; adding caustic soda into the hydrolysate to adjust the pH value to 10, heating the hydrolysate to 80 ℃, carrying out polycondensation reaction for 1h by reduced pressure distillation, then adding calcium sulfate, heating to 120 ℃, and continuing to carry out polycondensation reaction for 1h by reduced pressure distillation to obtain a polycondensation product; washing the polycondensation product with deionized water to neutrality, and vacuum drying to obtain the specific boron-hybridized methyl vinyl MQ silicon resin.
Example 3
The invention relates to a rubber composition for a tread of a medium-large automobile tire, which comprises the following specific components: the matrix rubber is: 68 parts of styrene-butadiene rubber, 32 parts of natural rubber; the functional filler is: 42 parts of KH570 modified fumed silica and 48 parts of carbon black; the tackifying resin is: 18 parts of specific boron-hybridized methyl vinyl MQ silicon resin and 7 parts of synthetic terpene resin; 10 parts of barium peroxide and 2 parts of N, N' -m-phenylene bismaleimide.
Wherein, the specific boron hybridized methyl vinyl MQ silicon resin takes-O-B-O, -O-Si-O as a main chain and vinyl as an active functional group, and the preparation method comprises the following steps: adding 15 parts of orthosilicate ester, 6 parts of methyltrimethoxysilane, 7 parts of n-propyl borate, 8 parts of dimethylvinylchlorosilane and 20 parts of xylene into a reactor, heating to 78 ℃, adding 10 parts of 10% hydroiodic acid, and reacting for 2-4 hours to obtain hydrolysate; adding caustic soda into the hydrolysate to adjust the pH value to 10, heating the hydrolysate to 80 ℃, carrying out polycondensation reaction for 1h by reduced pressure distillation, then adding calcium sulfate, heating to 120 ℃, and continuing to carry out polycondensation reaction for 1h by reduced pressure distillation to obtain a polycondensation product; washing the polycondensation product with deionized water to neutrality, and vacuum drying to obtain the specific boron-hybridized methyl vinyl MQ silicon resin.
The test data of the rubber compositions described in the examples after 30min vulcanization at 152 ℃ are given in the following table:
| item | Example 1 | Example 2 | Example 3 |
| Elongation at Break | 546％ | 540％ | 535％ |
| Tensile strength | 25.2MPa | 24.9MPa | 24.8MPa |
| Shore A hardness/degree | 66 | 65 | 62 |
| 100% tensile stress/MPa | 3.0 | 2.8 | 2.7 |
| 300% tensile stress/MPa | 13.8 | 13.5 | 13.2 |
| Rebound value/%) | 62 | 63 | 60 |
| Tear Strength/(KN/m) | 77 | 77 | 75 |
| Hysteresis loss | 0.078 | 0.080 | 0.076 |
Claims (7)
1. The automobile tire is characterized in that a tread material of the automobile tire adopts a rubber composition comprising the following components in parts by weight:
the matrix rubber is: 65-75 parts of styrene-butadiene rubber and 25-35 parts of natural rubber;
the functional filler is: 30-60 parts of modified fumed silica and 30-60 parts of carbon black;
the tackifying resin is: 10-20 parts of specific boron-hybridized methyl vinyl MQ silicon resin and 5-10 parts of synthetic terpene resin;
5-10 parts of a vulcanizing agent and 2-5 parts of a vulcanization accelerator;
wherein, the specific boron hybridized methyl vinyl MQ silicon resin takes-O-B-O, -O-Si-O as a framework and vinyl as an active functional group; the molecular weight of the styrene-butadiene rubber is 1000000-5000000; the melting point of the synthetic terpene resin is 120-150 ℃.
2. The automobile tire according to claim 1, wherein the modified fumed silica is a fumed silica modified with KH 570; the carbon black is 100-mesh residue<0.1% and nitrogen adsorption specific surface area of 100-130 m2(ii) 120-180 mg/g of iodine adsorption amount.
3. The automobile tire according to claim 1, wherein the vulcanizing agent is at least one of dibenzoyl peroxide, tetramethylthiuram disulfide, barium peroxide, cadmium peroxide, magnesium peroxide, zinc peroxide, bis (2, 4-dichloroformyl) peroxide, di-t-butyl peroxide, 1, 4-di-t-butylperoxyisopropyl benzene, dicumyl peroxide, t-butyl perbenzoate, t-butyl cumyl peroxide, dicumyl peroxide, isopropyl t-butyl carbonate, t-butyl peroxycarbonate; the vulcanization accelerator is at least one of zinc dibutyl dithiocarbamate, hexamethylene diamine carbamate, ethylene diamine formate and N, N' -m-phenylene bismaleimide.
4. The automobile tire according to claim 1, wherein the preparation method of the specific boron-hybridized methyl vinyl MQ silicone resin comprises the following steps: adding 15 parts of orthosilicate ester, 4-8 parts of methylalkoxysilane, 5-10 parts of boric acid derivative, 10-20 parts of dimethylvinylchlorosilane and 20 parts of xylene into a reactor, heating to 70-80 ℃, adding 10 parts of 10% acid catalyst, and reacting for 2-4 hours to obtain hydrolysate; adding caustic soda into the hydrolysate to adjust the pH value to 10, heating the hydrolysate to 80 ℃, carrying out polycondensation reaction for 1h by reduced pressure distillation, then adding calcium sulfate, heating to 120 ℃, and continuing to carry out polycondensation reaction for 1h by reduced pressure distillation to obtain a polycondensation product; washing the polycondensation product with deionized water to neutrality, and vacuum drying to obtain the specific boron-hybridized methyl vinyl MQ silicon resin.
5. The automobile tire according to claim 4, wherein said methylalkoxysilane is at least one of hexamethyldisiloxane, methyltrimethoxysilane, methyltriethoxysilane, dimethyldimethoxysilane, and dimethyldiethoxysilane.
6. The automotive tire according to claim 4, wherein the boric acid derivative is at least one of boric acid, phenylboronic acid, tributyl borate, tri-n-propyl borate, triisopropyl borate, trimethyl borate, 3-fluorophenylboronic acid, sec-butyl boronic acid, 4-fluorophenylboronic acid, 3-methoxyphenylboronic acid, n-butyl boronic acid, and 2-methoxyphenylboronic acid.
7. The automobile tire according to claim 4, wherein said acid catalyst is at least one of hydrochloric acid, hydrobromic acid, and hydroiodic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010318823.4A CN111410781A (en) | 2017-10-31 | 2017-10-31 | Automobile tire |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711049174.7A CN107759860B (en) | 2017-10-31 | 2017-10-31 | Rubber composition for tread of medium and large automobile tire |
| CN202010318823.4A CN111410781A (en) | 2017-10-31 | 2017-10-31 | Automobile tire |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711049174.7A Division CN107759860B (en) | 2017-10-31 | 2017-10-31 | Rubber composition for tread of medium and large automobile tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111410781A true CN111410781A (en) | 2020-07-14 |
Family
ID=61271121
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010318823.4A Withdrawn CN111410781A (en) | 2017-10-31 | 2017-10-31 | Automobile tire |
| CN202010318738.8A Withdrawn CN111440366A (en) | 2017-10-31 | 2017-10-31 | Specific boron-hybridized methyl vinyl MQ silicon resin and application thereof |
| CN201711049174.7A Active CN107759860B (en) | 2017-10-31 | 2017-10-31 | Rubber composition for tread of medium and large automobile tire |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010318738.8A Withdrawn CN111440366A (en) | 2017-10-31 | 2017-10-31 | Specific boron-hybridized methyl vinyl MQ silicon resin and application thereof |
| CN201711049174.7A Active CN107759860B (en) | 2017-10-31 | 2017-10-31 | Rubber composition for tread of medium and large automobile tire |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN111410781A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108531126B (en) * | 2018-04-03 | 2019-04-09 | 苏州世华新材料科技股份有限公司 | A kind of organic pressure-sensitive gel containing boron modification MQ organic silicon rigidity-increasing stick |
| CN109054133A (en) * | 2018-07-10 | 2018-12-21 | 刘勇 | A kind of high-performing car Tire rubber material |
| CN109135297A (en) * | 2018-08-31 | 2019-01-04 | 安庆市泽烨新材料技术推广服务有限公司 | Silicone rubber for cable sheath material and preparation method thereof |
| CN114213732B (en) * | 2021-11-25 | 2023-05-12 | 公元管道(安徽)有限公司 | Modified master batch for enhancing weatherability of polyethylene winding pipe and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8592506B2 (en) * | 2006-12-28 | 2013-11-26 | Continental Ag | Tire compositions and components containing blocked mercaptosilane coupling agent |
| CN103739848B (en) * | 2013-12-25 | 2016-06-01 | 北京化工大学 | Additional organosilicon packaging plastic tackifier and its preparation method |
| JP6352691B2 (en) * | 2014-06-16 | 2018-07-04 | 住友ゴム工業株式会社 | Truck / Bus Tire |
| JP5987865B2 (en) * | 2014-06-17 | 2016-09-07 | 横浜ゴム株式会社 | Rubber composition for tire and pneumatic tire |
| CN105330916A (en) * | 2015-10-19 | 2016-02-17 | 风神轮胎股份有限公司 | Environmental-friendly mining all-steel engineering radial cutting-resistant tire tread compound |
-
2017
- 2017-10-31 CN CN202010318823.4A patent/CN111410781A/en not_active Withdrawn
- 2017-10-31 CN CN202010318738.8A patent/CN111440366A/en not_active Withdrawn
- 2017-10-31 CN CN201711049174.7A patent/CN107759860B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107759860B (en) | 2020-09-04 |
| CN107759860A (en) | 2018-03-06 |
| CN111440366A (en) | 2020-07-24 |
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Application publication date: 20200714 |