CN105906864B - A kind of Sidewall rubber of automobile tire of increase sidewall hardness - Google Patents
A kind of Sidewall rubber of automobile tire of increase sidewall hardness Download PDFInfo
- Publication number
- CN105906864B CN105906864B CN201610511985.3A CN201610511985A CN105906864B CN 105906864 B CN105906864 B CN 105906864B CN 201610511985 A CN201610511985 A CN 201610511985A CN 105906864 B CN105906864 B CN 105906864B
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- China
- Prior art keywords
- sidewall
- sizing material
- sidewall rubber
- rubber
- automobile tire
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
-
- 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
- B60C1/0025—Compositions of the sidewalls
-
- 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
-
- 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
Abstract
The invention provides a kind of Sidewall rubber of automobile tire sizing material of increase sidewall hardness, the sidewall rubber sizing material includes the component of following parts by weight：Natural rubber 40 50, cis-butadiene cement 50 60, zinc oxide 28, stearic acid 24, age resistor 25, protection wax 13, tackifying resin 15, hardening resin 2 10, curing agent 0.2 1, N326 carbon blacks 40 60, polymolecularity insoluble sulfur (sulfur content >=95%) 24, accelerator NS 13, vulcanizing agent TB7101 2, the sidewall rubber also includes 6700 resins, and the parts by weight of the resin are 2 12；The sidewall rubber sizing material has the advantages that anti-deformation, resistance to flexion, impact resistance and service life is long.
Description
Technical field
The invention belongs to tire manufacturing techniques field, and in particular to a kind of Sidewall rubber of automobile tire glue of increase sidewall hardness
Material.
Background technology
Tire is one of important component of automobile, and it is directly contacted with road surface, is played an important roll, first and automotive suspension
Collective effect, to relax impact suffered during running car, it is ensured that automobile has good driving comfort and ride performance；
Also to ensure that there is a good tack on wheel and road surface simultaneously, improve the traction property of automobile, braking and pass through property；Bear in addition
Weight of automobile etc., the important function that tire rises on automobile is increasingly valued by people.
The meridian cable architecture tire that company of Michelin of France initiates at present, this tire is due to service life and performance
Significantly improve, particularly can save fuel under steam, and be described as the revolution of tire industry, but be due to Michelin's wheel
The crown of tire is thick, and sidewall rubber is thin, so the transition region on crown and sidewall easily produces breach；Secondly as sidewall is relatively thin,
Easily it is deformed, causes the lateral stability of automobile poor；Again, because the anti-collision performance on sidewall is poor, easily become
Shape bulge and it is easily damaged.Stored finally, due to be passed through during distributors stock tire frequently with stacking, tire stacking storage for a long time
Afterwards, especially bottom tire sidewall, by a certain degree of extruding, causes sidewall to deform, and not only influences the outward appearance of tire, also leads
Cause inflation difficult.Found additionally by counting, every year because of sidewall storage deformation, collision deformation or shock bulge and the reasonable compensation of breach
The 60% of number.
In view of the use requirement and performance requirement of tire sidewall sizing material, it is necessary to reasonably configure various raw material components and its ratio
Example, makes tire have better performance, strengthens its flex fatigue life, strengthen its sidewall intensity and resistance to tearing energy.
A kind of Sidewall rubber of automobile tire is mentioned in one Application No. CN201310335294.9 patent application, the sidewall
Glue includes the component of following portions by weight：
The sidewall rubber has the advantages that ageing resistance is good, wear-resisting, anti-lubricity is good.
A kind of automobile tire of anti-starved is mentioned in another Application No. CN201410012903.1 patent application
Side glue, the Sidewall rubber of automobile tire is made up of the component of following portions by weight：
The problem of Sidewall rubber of automobile tire is mainly used in improving semi-steel radial tire sidewall starved, but this two Shens
Please, yielding for described automobile tire sidewall long-time storage, anti-collision performance is poor, easily occurs bulge and damage etc. to ask
Topic can not be solved preferably, therefore develop the Sidewall rubber of automobile tire of a kind of anti-deformation, resistance to flexion, impact resistance and service life length
It is very necessary.
The content of the invention
It is an object of the invention to provide a kind of Sidewall rubber of automobile tire sizing material of increase sidewall hardness, the automobile tire
Side glue sizing material has the advantages that anti-deformation, resistance to flexion, impact resistance and service life are long.
The purpose of the present invention is achieved through the following technical solutions, a kind of automobile tire sidewall of increase sidewall hardness
Glue sizing material, the sidewall rubber sizing material includes the component of following parts by weight：
It is further preferred that the sidewall rubber sizing material includes the component of following parts by weight：
Preferably, described age resistor is N- phenyl-α-aniline, N- phenyl-N '-isopropyl-p-phenylenediamine, N, N '-two
At least one of phenyl-pphenylenediamine and antioxidant 4020.
Preferably, described curing agent is HMT or HMMM.
Preferably, the density of the sidewall rubber sizing material is 1.0-1.2kg/dm3。
Preferably, the sidewall rubber sizing material also includes PNM modification EP resins, and the consumption that the PNM is modified EP resins is 4-10 weights
Measure part；The PNM is modified EP resins generation network structure, can dramatically increase the toughness of the sidewall rubber sizing material, tensile strength and curved
Qu Qiangdu.
The present invention is formulated by adjusting, and adjusts the consumption of high effective and modified reinforced resin 6700, finds high effective and modified reinforcement tree
When the consumption of fat 6700 is 2-12 parts by weight, the hardness of sidewall rubber can obviously improve.
The sidewall rubber with above-mentioned formula that the present invention is provided has good plasticity during rubber processing, with rubber phase
Capacitive is good, is conducive to resin dispersed in sizing material with filler, improves sizing material expressing technique condition and rubber mobility, glue
Material expression surface is smooth, viscosity is good, be not easy glue burning.In the presence of 5~10% curing agent HMT or HMMM, can significantly it carry
Hardness, wearability, tear-proof, tensile strength and the stress at definite elongation of high sizing material, while the elongation of vulcanizate can somewhat reduce.
The invention has the beneficial effect that：
1) it is formulated so that the Sidewall rubber of automobile tire has higher hardness, is provided with more significant anti-by adjusting
Deformability so that even if dealer is stored using stacking, sidewall deformation is also fewer, the outward appearance better appearance of such tire,
The problems such as will not causing to inflate difficulty in gas replenishment process.
2) formula is adjusted, the anti-collision performance on sidewall has significant raising, it is not easy to which deform bulge phenomenon,
Service life is long.
3) thickness of appropriate increase sidewall rubber, the sidewall rubber flexible resistance matter after adjustment gets a promotion simultaneously, crown with
The transition region on sidewall is not allowed to be also easy to produce breach.
Embodiment
Beneficial effects of the present invention are now further described by following examples, embodiment is only used for the purpose of illustration,
Do not limit the scope of the invention, while obvious change and modification that those of ordinary skill in the art are made according to the present invention
It is also contained within the scope of the invention.
Unless otherwise instructed, the percentage being related in the present invention is weight percentage.
Following table is embodiment 1-6 Sidewall rubber of automobile tire sizing compound formula：
The sidewall rubber sizing compound formula list of table 1
Note：Numeral is all parts by weight in table.
Sidewall rubber calendering process is：1：According to the formula in table 1, natural rubber, cis-butadiene cement are added in banbury, prevents old
Agent 4020, protection wax, 6700 resins, hardening resin, tackifying resin, N326 carbon blacks, mix 10min and are warming up to 160 DEG C, so
Masterbatch is obtained, 85 DEG C or so are then progressively cooled to；
2：Also according to the formula in table 1, zinc oxide, tristearin are added in the masterbatch obtained in mill to step 1
Acid, accelerator NS, vulcanizing agent TB710, insoluble sulfur and curing agent, and at a temperature of 50 DEG C, said mixture is kneaded
10min, so as to obtain corresponding elastomeric compound.
3：The elastomeric compound as made from the above method is molded on vulcanizing press, rubber flat plate or thin slice (sample is made
Product), for carrying out the test of physicochemical properties.
Embodiment 7
Carried out according to foregoing sidewall rubber sizing material preparation method, be modified EP resins by adding PNM, the PNM is modified EP trees
Fat generates network structure, the toughness, tensile strength and bending strength of corresponding sidewall rubber is dramatically increased, while the hardness of sidewall rubber
Also there is a certain degree of increase.
Comparative example 1
Sidewall rubber of automobile tire sizing material, includes the component of following portions by weight：
Comparative example 2
Sidewall rubber of automobile tire sizing material, includes the component of following portions by weight：
Comparative example 3
Sidewall rubber of automobile tire sizing material, includes the component of following portions by weight：
Comparative example 4
Comparative example 5
Performance test
1st, tensile property
Requirement according to standard GB/T 528-2009 is tested, and stress at definite elongation is by the train length portion of sizing material sample
Divide the stress being stretched to needed for certain percentage of elongation, stress at definite elongation is bigger, represent that the mechanics reinforcing property of corresponding sizing material is higher,
Rigidity is bigger.
The tensile property of table 2 is tested
Obtained sizing material sample is with obtained sizing material sample phase in comparative example in data above, the embodiment of selection
Compare, it is known that 100% stress at definite elongation, 300% stress at definite elongation, tensile strength and tearing strength are higher, elongation rate of tensile failure and break
Permanent deformation is lower, illustrates there is more preferable toughness, tensile strength and bending according to sidewall rubber prepared by the formula in embodiment
Intensity.
2nd, Shao Er A type hardness testers
Performance measurement is carried out according to national standard, it is as a result as follows：
The Shao Er A type hardness testers of table 3 are tested
Note：Unit is degree.
Obtained sizing material sample is with obtained sizing material sample phase in comparative example in data above, the embodiment of selection
Compare, it is known that the hardness of obtained sizing material sample is higher than the hardness of obtained sizing material sample in comparative example in embodiment.
3rd, compression heat generation and flex crack grade (300,000 times)
Flex crack level estimate is carried out according to GB/T 13939-92 standards
The compression heat generation of table 4 and flex crack level estimate
Obtained sizing material sample is with obtained sizing material sample phase in comparative example in data above, the embodiment of selection
Compare, it is known that the compression heat generation of obtained sizing material sample is lower in embodiment, and flex crack lower grade, i.e. cracking point is less,
Cracking degree is lighter.
Bulge test
1. semi-finished product made from sizing material and finished product tire and obtained semi-finished product and finished product in comparative example 1-5 in embodiment 1 and 7
Tire carries out contrast test.
Test requirements document:Semi-finished product and finished product tire will individually be deposited and carry out mark, test period one month.Before statistical test
Carrying out comparing result with the finished appearance Quality Checkout Data in one month on-test within one month, it is as shown in the table.Can from table 5
To find out, sidewall both sides become flat quantity and significantly reduced caused by finished product plies folds storage, are conducive to distributors stock.
The bulge test finished product tire presentation quality of table 5 is counted
2. finished product tire machine tool capability is tested, the sidewall rubber as made from sizing material in embodiment 1 and 7 is extracted during bulge test
Indoor high-speed experiment is carried out with the sidewall rubber as made from sizing material in comparative example 1-5, result of the test is as shown in table 6.
High-speed performance test result in the finished product proloculum of table 6
From table 5,6, inventive formulation is substantially better than comparative example, and the folded storage first-time qualification rate of finished product plies is high, finished product
The sidewall of tire two become flat phenomenon be improved significantly.After improving sidewall hardness, Claims Resolution tire is because of sidewall storage deformation, collision deformation
Or shock bulge and the shared Claims Resolution tire number of breach drop to 20% by 60%.
Claims (3)
1. the Sidewall rubber of automobile tire sizing material of a kind of increase sidewall hardness, it is characterised in that the sidewall rubber sizing material includes following heavy
Measure the component of part：
Natural rubber 40.0
Cis-butadiene cement 60.0
Zinc oxide 5.0
Stearic acid 2.5
Age resistor 3.5
Protection wax 1.0
Tackifying resin 4.0
6700 resins 6.0
Curing agent 0.6
Hardening resin 4.5
N326 carbon blacks 45.0
Insoluble sulfur, wherein sulfur content >=95% 2.1
Accelerator NS 1.2
Vulcanizing agent TB710 1.0
The density of the sidewall rubber sizing material is 1.0-1.2kg/dm3。
2. Sidewall rubber of automobile tire sizing material according to claim 1, it is characterised in that described age resistor be N- phenyl-
At least one in α-aniline, N- phenyl-N '-isopropyl-p-phenylenediamine, N, N '-diphenyl-p-phenylenediamine and antioxidant 4020
Kind.
3. Sidewall rubber of automobile tire sizing material according to claim 1, it is characterised in that described curing agent be HMT or
HMMM。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610511985.3A CN105906864B (en) | 2016-06-30 | 2016-06-30 | A kind of Sidewall rubber of automobile tire of increase sidewall hardness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610511985.3A CN105906864B (en) | 2016-06-30 | 2016-06-30 | A kind of Sidewall rubber of automobile tire of increase sidewall hardness |
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| Publication Number | Publication Date |
|---|---|
| CN105906864A CN105906864A (en) | 2016-08-31 |
| CN105906864B true CN105906864B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610511985.3A Active CN105906864B (en) | 2016-06-30 | 2016-06-30 | A kind of Sidewall rubber of automobile tire of increase sidewall hardness |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107474338A (en) * | 2017-09-18 | 2017-12-15 | 江苏通用科技股份有限公司 | Tire sidewall glue sizing material using environment-friendly type high intensity power reclaimed rubber and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5466667B2 (en) * | 2011-05-17 | 2014-04-09 | 住友ゴム工業株式会社 | Rubber composition for tire and pneumatic tire |
| CN102492186A (en) * | 2011-12-08 | 2012-06-13 | 四川凯力威科技股份有限公司 | Composite sidewall filling rubber formula rubber material for all-steel radial tire |
| ITRM20130071A1 (en) * | 2013-02-08 | 2014-08-09 | Bridgestone Corp | MIXES WITH HIGH RIGIDITY FOR TIRES |
| CN103772762B (en) * | 2014-01-13 | 2015-02-25 | 肇庆骏鸿实业有限公司 | Automobile tire sidewall rubber for preventing starved joint |
| CN104744746A (en) * | 2015-04-20 | 2015-07-01 | 特拓(青岛)轮胎技术有限公司 | Rubber composition for run-flat tire sidewall part of car |
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