CN113263871A - Tire, preparation method thereof and automobile - Google Patents
Tire, preparation method thereof and automobile Download PDFInfo
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- CN113263871A CN113263871A CN202110683118.9A CN202110683118A CN113263871A CN 113263871 A CN113263871 A CN 113263871A CN 202110683118 A CN202110683118 A CN 202110683118A CN 113263871 A CN113263871 A CN 113263871A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 229920001971 elastomer Polymers 0.000 claims abstract description 102
- 239000005060 rubber Substances 0.000 claims abstract description 102
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 76
- 239000011324 bead Substances 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 229920002943 EPDM rubber Polymers 0.000 claims description 14
- 239000000945 filler Substances 0.000 claims description 11
- 229920005555 halobutyl Polymers 0.000 claims description 11
- 238000010070 extrusion (rubber) Methods 0.000 claims description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 244000043261 Hevea brasiliensis Species 0.000 claims description 6
- 229920003052 natural elastomer Polymers 0.000 claims description 6
- 229920001194 natural rubber Polymers 0.000 claims description 6
- 239000000049 pigment Substances 0.000 claims description 5
- 229920003051 synthetic elastomer Polymers 0.000 claims description 5
- 239000005061 synthetic rubber Substances 0.000 claims description 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 4
- 235000012211 aluminium silicate Nutrition 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 40
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000011241 protective layer Substances 0.000 abstract description 3
- 239000003963 antioxidant agent Substances 0.000 description 10
- 230000003078 antioxidant effect Effects 0.000 description 10
- 230000032683 aging Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ZZMVLMVFYMGSMY-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound C1=CC(NC(C)CC(C)C)=CC=C1NC1=CC=CC=C1 ZZMVLMVFYMGSMY-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
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- 150000001875 compounds Chemical class 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MWHJFICEONTVAX-UHFFFAOYSA-N 10,12-dimethylpteridino[7,6-f][1,10]phenanthroline-11,13-dione Chemical compound N1=CC=CC2=C(N=C3C(N(C(N(C)C3=O)=O)C)=N3)C3=C(C=CC=N3)C3=C21 MWHJFICEONTVAX-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 206010027146 Melanoderma Diseases 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 239000003292 glue Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 238000005658 halogenation reaction Methods 0.000 description 1
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- 229920001897 terpolymer Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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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
- B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
-
- 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
- C08L21/00—Compositions of unspecified rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
- C08L23/283—Halogenated homo- or copolymers of iso-olefins
-
- 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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Tires In General (AREA)
Abstract
The invention discloses a tire, a preparation method thereof and an automobile, and relates to the technical field of tires. The anti-aging rubber layer is arranged on the side wall of the tire body to form a protective layer, so that damage to the tire caused by ultraviolet rays, ozone, various liquids on the road surface, broken stones and the like can be effectively prevented, the service life of the tire is prolonged, the tire is not easy to age, and the tire is more durable.
Description
Technical Field
The invention belongs to the technical field of tires, and particularly relates to a tire, a preparation method thereof and an automobile.
Background
The tire is an important part on an automobile, the tire used in the running automobile can be influenced by ultraviolet rays UVA/UVB (ultraviolet rays with the UVA wave band and the wavelength of 320-400 nm, also called as long-wave black spot effect ultraviolet rays; UVB, which is also called ultra violet radiation b in English, is a wave band for dividing the ultraviolet wavelength according to different biological effects, the UVB is outdoor ultraviolet rays, people directly shoot into skin when doing outdoor activities), ozone, aging and other environmental factors, the tire is easy to age due to long-term vehicle load of the lower side wall of the tire, various liquids, gravels and the like on the road surface, the aging time of the tire is 3 years, and the tire is expressed for 1.5 years in a plurality of customer complaints at present.
Disclosure of Invention
Based on the above, the invention provides a tire, a preparation method thereof and an automobile, and aims to provide a durable tire which is not easy to age.
In order to achieve the purpose, the invention provides the following technical scheme:
a tire, comprising:
a tire body; and the number of the first and second groups,
the anti-aging rubber layer is arranged on the side wall of the tire body and extends along the circumferential direction of the tire body, and the anti-aging rubber layer is made of rubber and an anti-aging agent.
Optionally, a rim protection line is arranged on the tire body, and the rim protection line is arranged close to a bead of the tire body;
the anti-aging rubber layer is provided with an inner side edge close to the tire bead of the tire body and an outer side edge far away from the tire bead of the tire body, and the inner side edge is overlapped with the rim protection line.
Optionally, the distance between the inner side edge and the outer side edge is 10mm to 50 mm.
Optionally, the rubber comprises at least three of ethylene propylene diene monomer, halogenated butyl rubber, natural rubber and synthetic rubber; and/or the presence of a gas in the gas,
the anti-aging agent comprises an anti-aging agent 4020 and an anti-aging agent RD.
Optionally, in the rubber, the total content of the ethylene propylene diene monomer rubber and the halogenated butyl rubber is 40-50 PHR; and/or the presence of a gas in the gas,
in the rubber, the total content of the anti-aging agent is 1-3 PHR.
Optionally, the material of the anti-aging rubber layer further includes pigment and filler.
Optionally, the filler comprises at least one of kaolin and titanium dioxide.
Optionally, the anti-aging rubber layer is arranged in an annular shape as a whole; and/or the presence of a gas in the gas,
the thickness of the anti-aging rubber layer is 0.5 mm-1 mm; and/or the presence of a gas in the gas,
the tire body is characterized in that a rubber groove extending along the circumferential direction of the tire body is formed in the tire side of the tire body, and the anti-aging rubber layer is arranged in the rubber groove.
The invention further proposes a method for manufacturing a tyre as described above, comprising the following steps:
extruding a tire sidewall of a tire body and an anti-aging rubber layer arranged on the tire sidewall by adopting a four-composite rubber extrusion process, wherein the four-composite rubber extrusion process adopts raw materials comprising cushion rubber, sidewall rubber, bead filler and anti-aging rubber;
and forming, vulcanizing and trimming the tire side to obtain the tire.
The invention further proposes a motor vehicle comprising a tyre as described above.
According to the technical scheme provided by the invention, the tire comprises a tire body and an anti-aging rubber layer arranged on the side wall of the tire body, the anti-aging rubber layer is made of rubber and an anti-aging agent, the anti-aging rubber layer is arranged on the side wall of the tire body to form a protective layer, so that damage to the tire caused by ultraviolet rays, ozone, various liquids and gravels on the road surface can be effectively prevented, the service life of the tire is prolonged, the tire is not easy to age, and the tire is more durable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of a tire according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is an extrusion pre-lip of a four compound rubber extrusion process used in the method of making a tire according to an embodiment of the present invention.
The reference numbers illustrate:
| 100 | tyre for |
21 | |
| 1 | Tyre |
22 | |
| 11 | |
3 | |
| 12 | Tire bead | 4 | |
| 13 | Rim protection line | 5 | |
| 2 | Anti-aging rubber layer | 6 | Anti-aging rubber channel |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, top and bottom … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The tire is an important part on an automobile, the tire in use of a running automobile is influenced by environmental factors such as ultraviolet UVA/UVB, ozone, aging and the like, the tire is easy to age due to long-term vehicle load of the lower side wall of the tire and various liquids, gravels and the like on a road surface, the aging time of the tire is usually 3 years, and the tire aging time is currently expressed for 1.5 years by several customer complaints.
In view of the above, the present invention provides a tire, which is durable and not easy to age. In the drawings of the present specification, fig. 1 is a schematic diagram of a tire structure according to an embodiment of the present invention; FIG. 2 is a cross-sectional view of FIG. 1; FIG. 3 is an extrusion pre-lip of a four compound rubber extrusion process used in the method of making a tire according to an embodiment of the present invention.
Referring to fig. 1 and 2, a tire 100 according to the present invention includes a tire body 1 and an anti-aging rubber layer 2, wherein the anti-aging rubber layer 2 is disposed on a sidewall 11 of the tire body 1 and extends along a circumferential direction of the tire body 1, and a material of the anti-aging rubber layer 2 includes rubber and an antioxidant.
According to the technical scheme provided by the invention, the tire 100 comprises a tire body 1 and an anti-aging rubber layer 2 arranged on the side wall 11 of the tire body 1, the anti-aging rubber layer 2 is made of rubber and an anti-aging agent, the anti-aging rubber layer 2 is arranged on the side wall 11 of the tire body 1 to form a protective layer, so that damage to the tire 100 caused by ultraviolet rays, ozone, various liquids and gravels on a road surface can be effectively prevented, the service life of the tire 100 is prolonged, the tire 100 is not easy to age, and the tire 100 is more durable.
In practical applications, the tire 100 is mounted on a rim, and a position on the sidewall 11 of the tire body 1, which is close to the rim, is most prone to be aged and cracked, so in order to effectively prevent the tire 100 from being aged, in an embodiment of the present invention, referring to fig. 1 and fig. 2, a rim protection line 13 is provided on the tire body 1, and the rim protection line 13 is provided close to a bead 12 of the tire body 1; the anti-aging rubber layer 2 has an inner side 22 disposed close to the bead 12 of the tire body 1 and an outer side 21 disposed away from the bead 12 of the tire body 1, the inner side 22 being disposed in coincidence with the rim protection line 13.
The rim protection line 13 is a protruding part of a circle at a position of the tire body 1 close to the bead 12, and the protruding part is made of rubber with high rigidity, so that when the tire 100 is in contact with a road surface, the rubber with high rigidity can resist impact and protect a rim from being scratched. The inner side 22 of the anti-aging rubber layer 2 coincides with the rim protection line 13 and extends outwards to the outer side 21 of the anti-aging rubber layer 2 along the sidewall 11 of the tire body 1, and the anti-aging rubber layer 2 is arranged at the position which is most prone to aging, so that the tire 100 can be effectively protected, the service life of the tire 100 is prolonged, the tire 100 is not prone to aging, and the tire is more durable.
The present invention is not limited to the size of the anti-aging rubber layer 2, and preferably, the distance between the inner side edge 22 and the outer side edge 21 is 10mm to 50 mm. The distance between the inner side 22 and the outer side 21 can be understood as the width of the anti-aging rubber layer 2, and research shows that the tire side 11 of the tire body 1 is most likely to age and crack within the range of 10mm to 50mm from the rim protection line 13, and the anti-aging rubber layer 2 within the width range can further ensure that the tire body 1 is not aged.
In addition, the thickness of the anti-aging rubber layer 2 is preferably 0.5mm to 1mm, and within the above thickness range, the tire 100 can be effectively prevented from being damaged by harmful substances in the external environment, and the strength of the tire 100 can also be ensured not to be affected.
It is understood that the ranges of the width and the thickness of the anti-aging rubber layer 2 may be satisfied at the same time, or may be satisfied only one of them, and as a preferred embodiment of the present invention, the ranges of the width and the thickness of the anti-aging rubber layer 2 are satisfied at the same time, so that the tire 100 has a stronger anti-aging capability.
The specific types of rubber and antioxidant in the anti-aging rubber layer 2 are not limited in the present invention, and preferably, the rubber includes at least three of Ethylene Propylene Diene Monomer (EPDM), halogenated butyl rubber (HIIR), Natural Rubber (NR) and synthetic rubber (BR), the EPDM is a terpolymer of ethylene, propylene and non-conjugated diene, and the main polymer chain is fully saturated, so that the EPDM has excellent weather resistance, ozone resistance, heat resistance, acid and alkali resistance, water vapor resistance, color stability, electrical properties, oil filling property and normal temperature fluidity, the EPDM can be used for a long time at 120 ℃, can be used for a short time or intermittently at 150-200 ℃, the service temperature can be increased by adding a suitable antioxidant, the EPDM crosslinked with peroxide can be used under severe conditions, and the EPDM can be used at an ozone concentration of 50pphm, Under the condition of stretching by 30%, the steel wire can be not cracked for more than 150 hours; the halogenated butyl rubber is a product of halogenation reaction of common butyl rubber dissolved in aliphatic hydrocarbon (such as hexane) with chlorine and bromine, and the halogenated butyl rubber has the advantages of ageing resistance, heat resistance, ozone resistance, chemical corrosion resistance, high hysteresis, high strength and low hysteresis of the butyl rubber, and improves the compatibility of the halogenated butyl rubber with other substances due to the introduction of halogen; the natural rubber has the characteristics of excellent rebound resilience, insulativity, water resistance, plasticity and the like, and also has the valuable properties of oil resistance, acid resistance, alkali resistance, heat resistance, cold resistance, pressure resistance, wear resistance and the like after being properly treated; the synthetic rubber material is cheap, has the characteristics of excellent heat resistance, cold resistance and corrosion resistance and small influence of environmental factors, and the anti-aging rubber layer 2 is prepared by using at least three of the four rubbers, so that the obtained tire 100 has better anti-aging performance.
Of the four types of rubber in the anti-aging rubber layer 2, ethylene propylene diene monomer rubber and halogenated butyl rubber play a main anti-aging role, and preferably, the total content of the ethylene propylene diene monomer rubber and the halogenated butyl rubber in the rubber is 40 to 50PHR (parts per hundred of rubber) which represents the number of parts added per 100 parts by mass of the rubber, that is, 40 to 50 parts of ethylene propylene diene monomer rubber and halogenated butyl rubber are included per 100 parts of the rubber, and the anti-aging performance of the tire 100 is the best within the above-mentioned number of parts by mass range.
Further, preferably, the antioxidant comprises antioxidant 4020 and antioxidant RD. Antioxidant 4020, also called antioxidant DMPPD, having molecular formula of C18H24N2The molecular weight of 268.3966 is gray black solid, is an antiozonant and an antioxidant for natural rubber and synthetic rubber, and has excellent protection effect on ozone cracking and flex fatigue; antioxidant RD, also called antioxidant RD, antioxidant 224, molecular formula is C12H17N, molecular weight 175.2701, and the two are used as anti-aging agents, so that the four rubbers can be effectively prevented from being oxidized after being used for a long time, and the service life of the tire 100 is prolonged.
Further, in the rubber, the total content of the anti-aging agent 4020 and the anti-aging agent RD is 1-3 PHR, and the obtained tire 100 has the highest anti-aging capability within the content range.
In order to meet the diversified requirements of users, in the embodiment of the present invention, preferably, the material of the anti-aging rubber layer 2 further includes pigment and filler. The pigment can make the anti-aging rubber layer 2 show different colors, and a user can select the corresponding color of the anti-aging rubber layer 2 according to the overall shape and the appearance color of the vehicle body, so that the visual feeling of the vehicle is enhanced.
The filler is added to match with the pigment, so that the color of the anti-aging rubber layer 2 is durable and does not fade, and preferably, the filler comprises at least one of kaolin and titanium dioxide. The kaolin and the titanium dioxide are used as fillers to replace carbon black commonly used in rubber, so that the cost is reduced, and the tire 100 is more personalized.
In order to protect the tire 100 in all directions, preferably, referring to fig. 1, the anti-aging rubber layer 2 is arranged in an annular shape as a whole, and the anti-aging rubber layer 2 surrounds the circumferential direction of the sidewall 11 of the tire body 1, so that no anti-aging dead corner is left, and the service life of the tire 100 is further prolonged.
In addition, in order to enhance the aesthetic feeling and facilitate the processing, in the embodiment of the present invention, the sidewall 11 of the tire body 1 is provided with a rubber groove extending along the circumferential direction of the tire body 1, and the anti-aging rubber layer 2 is disposed in the rubber groove.
The invention further proposes a method for manufacturing a tyre 100 as described above, comprising the following steps:
s10, extruding the tire side 11 of the tire body 1 and the anti-aging rubber layer 2 arranged on the tire side 11 by adopting a four-compound rubber extrusion process, wherein the four-compound rubber extrusion process adopts raw materials comprising cushion rubber, tire side rubber, bead filler and anti-aging rubber.
Referring to fig. 3, the present invention changes the three-compound rubber extrusion process used for preparing the sidewall 11 of the existing tire 100 into the four-compound rubber extrusion process, and the extrusion pre-opening adopted in the process is respectively provided with a cushion rubber channel 3, a sidewall rubber channel 4, a bead rubber channel 5 and an anti-aging rubber channel 6, so that the anti-aging rubber channel 6 is added, and the obtained tire 100 has the advantages of stronger anti-aging capability, longer service life and more durability.
The cushion rubber can be BEC cushion rubber (edge cushion rubber of a steel belt), the side wall rubber can be commonly used side wall rubber in the prior art, and the rim rubber can be wear-resistant rim rubber, so that the service life of the tire 100 is further prolonged.
And S10, forming, vulcanizing and trimming the side wall 11 to obtain the tire 100.
The tire 100 manufactured by the method for manufacturing the tire 100 according to the present invention has all the beneficial effects of the tire 100, and details are not repeated herein.
The invention further proposes a motor vehicle comprising a tyre 100 as described above. The automobile provided by the invention comprises the tire 100, has all the beneficial effects of the tire 100, and is not repeated herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A tire, comprising:
a tire body; and the number of the first and second groups,
the anti-aging rubber layer is arranged on the side wall of the tire body and extends along the circumferential direction of the tire body, and the anti-aging rubber layer is made of rubber and an anti-aging agent.
2. The tire of claim 1, wherein a rim protection line is provided on the tire body, the rim protection line being disposed proximate to a bead of the tire body;
the anti-aging rubber layer is provided with an inner side edge close to the tire bead of the tire body and an outer side edge far away from the tire bead of the tire body, and the inner side edge is overlapped with the rim protection line.
3. The tire of claim 2 wherein the distance between said inboard side edge and said outboard side edge is from 10mm to 50 mm.
4. The tire of claim 1, wherein the rubber comprises at least three of ethylene propylene diene monomer, halogenated butyl rubber, natural rubber, and synthetic rubber; and/or the presence of a gas in the gas,
the anti-aging agent comprises an anti-aging agent 4020 and an anti-aging agent RD.
5. The tire of claim 4, wherein the total content of ethylene propylene diene monomer and halogenated butyl rubber in the rubber is 40 to 50 PHR; and/or the presence of a gas in the gas,
in the rubber, the content of the anti-aging agent is 1-3 PHR.
6. The tire of claim 1 wherein said layer of anti-aging rubber further comprises pigments and fillers.
7. The tire of claim 6, wherein the filler comprises at least one of kaolin clay and titanium dioxide.
8. The tire according to claim 1, wherein said anti-aging rubber layer is disposed in an annular shape as a whole; and/or the presence of a gas in the gas,
the thickness of the anti-aging rubber layer is 0.5 mm-1 mm; and/or the presence of a gas in the gas,
the tire body is characterized in that a rubber groove extending along the circumferential direction of the tire body is formed in the tire side of the tire body, and the anti-aging rubber layer is arranged in the rubber groove.
9. A process for the preparation of a tyre as claimed in anyone of claims 1 to 8, comprising the following steps:
extruding a tire sidewall of a tire body and an anti-aging rubber layer arranged on the tire sidewall by adopting a four-composite rubber extrusion process, wherein the four-composite rubber extrusion process adopts raw materials comprising cushion rubber, sidewall rubber, bead filler and anti-aging rubber;
and forming, vulcanizing and trimming the tire side to obtain the tire.
10. A motor vehicle, characterized in that it comprises a tyre according to any one of claims 1 to 8.
Priority Applications (1)
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