NL2031740B1 - Method for preparing sheet rubber anti-skid belt for a tire - Google Patents
Method for preparing sheet rubber anti-skid belt for a tire Download PDFInfo
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- NL2031740B1 NL2031740B1 NL2031740A NL2031740A NL2031740B1 NL 2031740 B1 NL2031740 B1 NL 2031740B1 NL 2031740 A NL2031740 A NL 2031740A NL 2031740 A NL2031740 A NL 2031740A NL 2031740 B1 NL2031740 B1 NL 2031740B1
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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
- B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
- B60C27/06—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables
- B60C27/16—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables formed of close material, e.g. leather or synthetic mats
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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
- B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
- B60C27/06—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables
- B60C27/062—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables provided with fastening means
- B60C27/063—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables provided with fastening means acting on the wheel, e.g. on the rim or wheel bolts
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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
- B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
- B60C27/06—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables
- B60C27/08—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables involving lugs or rings taking up wear, e.g. chain links, chain connectors
- B60C27/086—Studded links, i.e. traction enhancing parts located on the link or inserted into the link
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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
- B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
- B60C27/20—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels having ground-engaging plate-like elements
-
- 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
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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
-
- 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
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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
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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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)
- General Chemical & Material Sciences (AREA)
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Method for preparing sheet rubber anti-skid belt for tire A method for preparing a sheet rubber anti-skid belt for a tire is disclosed. Raw rubber is common 5 raw rubber combined with methylphenylvinyl silicone rubber and brominated isobutylene-p-methylstyrene rubber, which not only can meet the requirements on the mechanical properties, tear resistance and aging property of a rubber anti-skid belt, but also can reduce the glass transition temperature and brittleness temperature of rubber materials, so that the operating temperature of the rubber materials can reach -120°C and the gripping force is also greatly increased. 10 A vulcanization system is a sulfur vulcanization system combined with a peroxide vulcanization system, the content of intramolecular combined sulfur is low, the glass transition temperature of the rubber materials is low, and the cold resistance of the rubber materials is improved. For a filling system, fumed silica is selected to replace part of carbon black, and the ice surface gripping force and tear resistance of the rubber materials can be significantly improved. Pollution-free novel 15 anti-aging agents are selected for an anti-aging system. Low-molecular weight high-vinyl 1,2-p01ybutadiene resin (liquid) is used as a peroxide assistant crosslinking agent, so that the low-temperature performance of the rubber materials is better.
Description
[0001] The present invention belongs to the field of tire products and relates to a method for preparing a sheet rubber anti-skid belt for a tire.
[0002] With improvements in the quality of road conditions, passenger car tires and truck tires are generally designed with longitudinal patterns in order to increase the running speed. However, such a design has a poor anti-skid effect, and the wheels may skid if there is snow or ice on the road surface. At present, common anti-skid belts for tires on the market are mostly made from metal materials and plastic materials. The metal anti-skid belts often damage the tires and create severe bumps; and the plastic anti-skid belts become brittle and hard and are easily broken when encountering low temperature in winter. Moreover, the anti-skid belts often used are chained anti-skid belts which have a small contact area and a poor anti-skid effect.
[0003] In addition, running with an anti-skid belt on a road surface imposes high requirements on materials which should have good elasticity and low glass transition temperature; and since friction between the running wheel and the anti-skid belt will generate heat, the anti-skid belt should also have good resistance to thermal oxidative aging.
[0004] In order to overcome the shortcomings of the prior art, the present invention provides a rubber anti-skid belt which has good low-temperature resistance, a long service life and excellent resistance to thermal oxidative aging, and also is designed with special transverse patterns with a good anti-skid effect.
[0005] The present invention is achieved by the following technical solution: A method for preparing a sheet rubber anti-skid belt for a tire, wherein the compositions and amounts thereof in a rubber anti-skid belt are: 40-50 parts of a natural rubber/butadiene rubber blend, 15-25 parts of solution polymerized styrene butadiene rubber, 3-7 parts of methylphenylvinyl silicone rubber, 20-30 parts of brominated isobutylene-p-methylstyrene rubber, 55-65 parts of carbon black, 20-40 parts of fumed silica,
0.3-0.6 part of sulfur and 3.5-5.5 parts of accelerators; 0.8-1.2 parts of diisopropylbenzene peroxide,
1.0-1.2 parts of high-vinyl 1,2-polybutadiene resin, 10-15 parts of zinc oxide, 3-5 parts of stearic acid,
5.0 parts in total of a mixture of an anti-aging agent 3100, an anti-aging agent TMQ and an anti-aging agent 2246 in a mass ratio of 1:1:1; and
1.5 parts in total of a softening plasticizer and an anti-scorching agent in a mass ratio of 1:1; the natural rubber/butadiene rubber blend is prepared by mixing natural rubber and butadiene rubber in a mass ratio of 1:1; the compositions are subjected to a rubber vulcanization method to prepare the rubber anti-skid belt; the rubber vulcanization method refers to a two-stage vulcanization method for production, the first-stage vulcanization is primarily vulcanization with sulfur, wherein an injection molding machine is adopted for vulcanization, the vulcanization temperature is 160-165°C, a pressure applied by the injection molding machine is 120-150 MPa, and the vulcanization time is determined according to the thickness of the sheet rubber anti-skid belt; and the second-stage vulcanization is primarily vulcanization with diisopropylbenzene peroxide, wherein an oven is adopted for vulcanization at a temperature of 155-160°C for 2.5-3.0 h; the rubber anti-skid belt 1s fixed on a wheel by means of a binding device; a plurality of herringbone patterns and transverse strip patterns in alternate distribution are disposed on the rubber anti-skid belt; and a plurality of ice breaking spikes in corresponding distribution are also disposed on two sides of a center line of the rubber anti-skid belt.
[0006] As a preferred solution of the method for preparing a sheet rubber anti-skid belt for a tire of the present invention: a plurality of anti-skid spikes are disposed in the transverse strip patterns; the number of the anti-skid spikes 1s an odd number, and one of the anti-skid spikes is located on the center line of the rubber anti-skid belt while the remaining anti-skid spikes are uniformly distributed on two sides of the center line.
[0007] As a preferred solution of the method for preparing a sheet rubber anti-skid belt for a tire of the present invention: the binding device comprises a binding strap integrated with the rubber anti-skid belt, and a locking buckle for locking the binding strap on the wheel.
[0008] As a preferred solution of the method for preparing a sheet rubber anti-skid belt for a tire of the present invention: a reinforcing rib 1s disposed between the binding strap and the rubber anti-skid belt.
[0009] As a preferred solution of the method for preparing a sheet rubber anti-skid belt for a tire of the present invention: three herringbone patterns and two transverse strip patterns are disposed on the rubber anti-skid belt.
[0010] As a preferred solution of the method for preparing a sheet rubber anti-skid belt for a tire of the present invention: the transverse strip patterns are transverse water-wave patterns.
[0011] Beneficial effects of the present invention: Compared with a metal anti-skid belt, the rubber anti-skid belt has a large contact area and a good anti-skid effect and does not damage the tire. Compared with a plastic anti-skid belt, the rubber anti-skid belt has better low-temperature resistance and a long service life. Through the design of spaced transverse water-wave patterns and herringbone patterns in combination, the patterns provide good skid resistance. By inserting steel spikes in the transverse water-wave patterns, the stability and the ice breaking property are good, and the gripping force is strong. A special formula is used and the formula is designed by considering the mechanical properties, tear resistance, aging property, ice surface gripping force and anti-skid property of the anti-skid belt. Raw rubber is common raw rubber combined with methylphenylvinyl silicone rubber and brominated isobutylene-p-methylstyrene rubber, which not only can meet the requirements on the mechanical properties, tear resistance and aging property of a rubber anti-skid belt, but also can reduce the glass transition temperature and brittleness temperature of the rubber materials, so that the operating temperature of the rubber materials can reach -120°C and the gripping force is also greatly increased. Novel anti-aging agents are adopted, which are pollution-free. Installation and removal are both convenient.
[0012] FIG.1 is a structural schematic diagram of the present invention; FIG. 2 is a schematic diagram of a cross section A-A in FIG. 1; FIG. 3 a schematic diagram of a cross section B-B in FIG. 1; and FIG. 4 a schematic diagram of a cross section C-C in FIG. I; in the figures: 10-Rubber anti-skid belt; 11-Herringbone pattern; 12-Strip pattern; 13-Ice breaking spike; 14-Anti-skid spike; 15-Binding strap; 16-Locking buckle; and 17-Reinforcing rib.
[0013] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings of the specification.
[0014] Many specific details are elaborated on in the description below for full understanding of the present invention. However, the present invention also can be implemented in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the contents of the present invention. Therefore, the present invention is not limited to the embodiments disclosed below.
[0015] In addition, “one embodiment” or “embodiments” mentioned herein refers to a specific feature, structure or characteristic that can be included in at least one implementation of the present invention. “In an embodiment” appearing in different places in the specification does not necessarily refers to the same embodiment, nor is it an embodiment independently or selectively in mutual exclusion with other embodiments.
[0016] By referring to FIGs. 1-4, as a first embodiment of the present invention, a method for preparing a sheet rubber anti-skid belt for a tire is provided, where the compositions and amounts thereof in a rubber anti-skid belt 10 are: 40-50 parts of a natural rubber/butadiene rubber blend, 15-25 parts of solution polymerized styrene butadiene rubber, 3-7 parts of methylphenylvinyl silicone rubber, 20-30 parts of brominated 1sobutylene-p-methylstyrene rubber, 55-65 parts of carbon black, 20-40 parts of fumed silica,
0.3-0.6 part of sulfur and 3.5-5.5 parts of accelerators; 0.8-1.2 parts of diisopropylbenzene peroxide,
1.0-1.2 parts of high-vinyl 1,2-polybutadiene resin, 10-15 parts of zinc oxide, 3-5 parts of stearic acid and
5.0 parts in total of a mixture of an anti-aging agent 3100, an anti-aging agent TMQ and an anti-aging agent 2246 in a mass ratio of 1:1:1; and
1.5 parts in total of a softening plasticizer and an anti-scorching agent in a mass ratio of 1:1; the natural rubber/butadiene rubber blend is prepared by mixing natural rubber and butadiene rubber ina mass ratio of 1:1; the compositions above are subjected to a rubber vulcanization method to prepare the rubber anti-skid belt 10; the rubber vulcanization method refers to a two-stage vulcanization method for production, the first-stage vulcanization is primarily vulcanization with sulfur, where an injection molding machine is adopted for vulcanization, a vulcanization temperature is 160-165°C, a pressure applied by the injection molding machine is 120-150 MPa, and a vulcanization time is determined according to a thickness of the sheet rubber anti-skid belt; and the second-stage vulcanization is primarily vulcanization with diisopropylbenzene peroxide, where an oven 1s adopted for vulcanization at a temperature of 155-160°C for 2.5-3.0 h; the rubber anti-skid belt 10 is fixed on a wheel by means of a binding device; a plurality of herringbone patterns 11 and transverse strip patterns 12 in alternate distribution are disposed on the rubber anti-skid belt 10; and 5 a plurality of ice breaking spikes 13 in corresponding distribution are also disposed on two sides of a center line of the rubber anti-skid belt 10.
[0017] Specifically, in the combination of the herringbone patterns 11 and the transverse strip patterns 12, the herringbone patterns 11 can effectively impede the left-right sliding displacement of the wheel, and the transverse strip patterns 12 can prevent the front-back sliding displacement of the wheel, so that the entire wheel has stronger ground gripping force to improve safety.
[0018] A plurality of anti-skid spikes 14 are disposed in the transverse strip patterns 12; the number of the anti-skid spikes 14 is an odd number, and one of the anti-skid spikes 14 is located on the center line of the rubber anti-skid belt 10 while the remaining anti-skid spikes 14 are uniformly distributed on two sides of the center line.
[0019] Specifically, the number of the anti-skid spikes 14 is an odd number so as to ensure that one of the anti-skid spikes 14 is inserted on the center line. Since the center line of the tire tread 1s in the closest contact with the ground in a running process of the wheel, the anti-skid spike 14 on the center line can firmly stick into the ground, and the anti-skid spikes 14 on two sides of the center line can play an assistant role in skid resistance.
[0020] The binding device includes a binding strap 15 integrated with the rubber anti-skid belt 10, and a locking buckle 16 for locking the binding strap 15 on the wheel.
[0021] Specifically, the binding strap 15 and the locking buckle 16 are both commercially available conventional products as long as the rubber anti-skid belt 10 can be bound to the wheel.
[0022] A reinforcing rib 17 is disposed between the binding strap 15 and the rubber anti-skid belt 10.
[0023] Specifically, the reinforcing rib 17 can increase a binding force between the binding strap 15 and the rubber anti-skid belt 10, thereby prolonging the service life.
[0024] three herringbone patterns 11 and two transverse strip patterns 12 are disposed on the rubber anti-skid belt 10.
[0025] Specifically, at least three rubber anti-skid belts 10 are generally bound to a tire, a certain distance is allowed between adjacent rubber anti-skid belts 10, and full close splicing is not required; preferably, five rubber anti-skid belts 10 are bound according to the wheel size; and the transverse strip patterns 12 are transverse water-wave patterns.
[0026] Specifically, the transverse water-wave patterns have better stability.
[0027] Embodiment 2 40 parts of a natural rubber/butadiene rubber blend, 25 parts of solution polymerized styrene butadiene rubber, 5 parts of methylphenylvinyl silicone rubber (7-10%), 30 parts of brominated 1sobutylene-p-methylstyrene rubber and 55 parts of carbon black; 20 parts of fumed silica; 0.3 part of sulfur and 3.5 parts of accelerators; 5.0 parts in total of an anti-aging agent 3100, an anti-aging agent TMQ and an anti-aging agent 2246, and 0.8 part of diisopropylbenzene peroxide; 1.0 part of a peroxide assistant crosslinking agent high-vinyl 1,2-polybutadiene resin (liquid) and 10 parts of zinc oxide; and 3 parts of stearic acid and 1.5 parts in total of a softening plasticizer and an anti-scorching agent. In the first-stage vulcanization, an injection molding machine is adopted for vulcanization, the vulcanization temperature is 160°C, a pressure applied by the injection molding machine is 120 MPa, and the vulcanization time is determined according to the thickness of the sheet rubber anti-skid belt; and in the second-stage vulcanization, an oven is adopted for vulcanization at a temperature of 155°C for 3.0 h.
[0028] Embodiment 3 50 parts of a natural rubber/butadiene rubber blend, 20 parts of solution polymerized styrene butadiene rubber, 5 parts of methylphenylvinyl silicone rubber (7-10%), 25 parts of brominated 1sobutylene-p-methylstyrene rubber and 60 parts of carbon black; 30 parts of fumed silica; 0.5 part of sulfur, and 4.0 parts of accelerators; 5.0 parts in total of an anti-aging agent 3100, an anti-aging TMQ and an anti-aging 2246, and 1.0 part of diisopropylbenzene peroxide; 1.1 parts of a peroxide assistant crosslinking agent high-vinyl 1,2-polybutadiene resin (liquid), and 12 parts of zinc oxide; and 4 parts of stearic acid and 1.5 parts in total of a softening plasticizer and an anti-scorching agent. In the first-stage vulcanization, an injection molding machine is adopted for vulcanization, the vulcanization temperature is 162°C, a pressure applied by the injection molding machine is 135 MPa, and the vulcanization time 1s determined according to the thickness of the sheet rubber anti-skid belt; and the second-stage vulcanization is primarily vulcanization with a peroxide, where an oven is adopted for vulcanization at a temperature of 158°C for 2.8 h.
[0029] Embodiment 4 50 parts of a natural rubber/butadiene rubber blend, 15 parts of solution polymerized styrene butadiene rubber, 7 parts of methylphenylvinyl silicone rubber (7-10%), 28 parts of brominated isobutylene-p-methylstyrene rubber and 65 parts of carbon black; 40 parts of fumed silica; 0.6 part of sulfur, and 5.5 parts of accelerators; 5.0 parts in total of an anti-aging agent 3100, an anti-aging agent TMQ and an anti-aging agent 2246, and 1.2 parts of diisopropylbenzene peroxide; 1.2 parts of a peroxide assistant crosslinking agent high-vinyl 1,2-polybutadiene resin (liquid) and 15 parts of zinc oxide; and 5 parts of stearic acid and 1.5 parts in total of a softening plasticizer and an anti-scorching agent. In the first-stage vulcanization, an injection molding machine is adopted for vulcanization, the vulcanization temperature is 165°C, a pressure applied by the injection molding machine is 150 MPa, and the vulcanization time is determined according to the thickness of the sheet rubber anti-skid belt; and the second-stage vulcanization is primarily vulcanization with a peroxide, where an oven is adopted for vulcanization at a temperature of 160°C for 2.5 h.
[0030] In the Embodiments 1-4, the formula of the rubber anti-skid belt 10 is designed by considering the mechanical properties, tear resistance, aging property, ice surface gripping force and anti-skid property of the anti-skid belt. Raw rubber is common raw rubber combined with methylphenylvinyl silicone rubber and brominated isobutylene-p-methylstyrene rubber, which not only can meet the requirements on the mechanical properties, tear resistance and aging property of a rubber anti-skid belt, but also can reduce the glass transition temperature and brittleness temperature of the rubber materials, so that the operating temperature of the rubber materials can reach -120°C and the gripping force is also greatly increased.
[0031] A vulcanization system is an effective vulcanization system combined with a peroxide vulcanization system, the content of intramolecular combined sulfur is low, the glass transition temperature of the rubber materials is low, and the cold resistance of the rubber materials is improved.
[0032] For a filling system, fumed silica is selected to replace part of carbon black, and the ice surface gripping force and tear resistance of the rubber materials can be significantly improved.
[0033] The anti-aging agent 3100, the anti-aging agent TMQ and the anti-aging agent 2246 selected for an anti-aging system are all pollution-free novel anti-aging agents.
[0034] Low-molecular weight high-vinyl 1,2-polybutadiene resin (liquid) is used as a peroxide assistant crosslinking agent, so that the low-temperature performance of the rubber materials is better.
[0035] Analysis of the physical and mechanical properties of the sheet rubber anti-skid belt for a tire. The physical and mechanical properties of the rubber materials in Embodiments 2-4 are shown in Table 2, where the hardness, mechanical properties, tear resistance and cold resistance of the rubber materials all can meet the requirements on the use performance of an anti-skid belt.
[0036] Table 1 Comparison of physical and mechanical properties of rubber materials in embodiments 2-4
© hem Embodiment2 Embodiment3 ~~ Embodiment4 "Tensile strength/MPa 17.56 1820 1842 100% stress at definite elongation Mpa 2.56 2.49 2.40 300% stress at definite clongation/Mpa 8.26 7.89 8.15 Elongation % 542 519 501 Tear strength/N/mm 67.40 68.63 66.52 Hardness 72 74 73 Glass transition temperature/°C -123 -112 -117 Brittleness temperature/°C -110 -107 106
[0037] The present invention is further described below in conjunction with solutions of actual tire size: Scheme 1: 9.00R20 tire: six rubber anti-skid belts ten can be adopted, having a belt width of 220-228 mm and a pattern depth of 16 mm. The pattern width of the transverse water-wave patterns 1s 28 mm, and a 20 mm diameter specification can be selected for the steel spikes. The herringbone patterns 11 are arranged in a direction in which the wheel moves forward, and the herringbone patterns 11 and the transverse water-wave patterns are spaced. The thickness of the rubber anti-skid belts 10 1s 16 mm. Each of the rubber anti-skid belts 10 is designed with two binding straps 15 and corresponding locking buckles 16, the two binding straps 15 are symmetrically arranged at two ends of the rubber anti-skid belt 10, and the width of the binding straps 15 1s designed as 35 mm.
[0038] Scheme 2: 205/55R16 tire: five rubber anti-skid belts ten can be adopted, having a belt width of 190-205 mm and a pattern depth of 15 mm. The pattern width of the transverse water-wave patterns 1s 25 mm, and a 20 mm diameter specification can be selected for the steel spikes. The herringbone patterns 11 are arranged in a direction in which the wheel moves forward, and the herringbone patterns 11 and the transverse water-wave patterns are spaced. The thickness of the rubber anti-skid belts 10 1s 15 mm. Each of the rubber anti-skid belts 10 is designed with two binding straps 15 and corresponding locking buckles 16, the two binding straps 15 are symmetrically arranged at two ends of the rubber anti-skid belt 10, and the width of the binding straps 15 is designed as 32 mm.
[0039] Scheme 3: 7.50R16 tire: five rubber anti-skid belts ten can be adopted, having a belt width of 180-190 mm and a pattern depth of 14 mm. The pattern width of the transverse water-wave patterns is 22 mm, and a 16 mm diameter specification can be selected for the steel spikes. The herringbone patterns 11 are arranged in a direction in which the wheel moves forward, and the herringbone patterns 11 and the transverse water-wave patterns are spaced. The thickness of the rubber anti-skid belts 10 is 14 mm. Each of the rubber anti-skid belts 10 is designed with two binding straps 15 and corresponding locking buckles 16, the two binding straps 15 are symmetrically arranged at two ends of the rubber anti-skid belt 10, and the width of the binding straps 15 is designed as 30 mm.
[0040] Scheme 4: 185/70R13 tire: four rubber anti-skid belts ten can be adopted, having a belt width of 175-185 mm and a pattern depth of 12 mm. The pattern width of the transverse water-wave patterns is 21 mm, and a 16 mm diameter specification be selected for the steel spikes. The herringbone patterns 11 are arranged in a direction in which the wheel moves forward, and the herringbone patterns 11 and the transverse water-wave patterns are spaced. The thickness of the rubber anti-skid belts 10 is 12 mm. Each of the rubber anti-skid belts 10 is designed with two binding straps 15 and corresponding locking buckles 16, the two binding straps 15 are symmetrically arranged at two ends of the rubber anti-skid belt 10, and the width of the binding straps 15 is designed as 30 mm.
[0041] Analysis of experimental data: Analysis of road adhesion property of the rubber anti-skid belt: In general, a car has a high adhesion when running on a dry asphalt road, where a road adhesion coefficient fl is generally between 0.65 and 0.82; however, due to the common shallow patterns of the car, when the car runs on an ice/snow-covered road surface, the patterns cannot push away the ice/snow to touch the road surface, thus the adhesion of the car is very low, where a road adhesion coefficient f2 is generally between 0.05 and 0.21, the adhesion property 1s extremely poor, and the driving force of the car is also very small. By taking 2-WD urban elite type Buick Ancora as an example, the adhesion of a tire with and without anti-skid belts on an ice/snow-covered road is analyzed below. The 2-WD urban elite type Buick Ancora is equipped with 215/60R17 tires and has a weight of 1,420 Kg, and hypothetically, a person of 70 Kg drives the car. The car adhesion is calculated as follows: (1) Calculation of adhesion on a dry road surface Adhesion coefficient fl on a dry road surface = 0.65-0.82, and is taken as 0.75, and G is the total weight of the car body and the person. Then, the car adhesion on a dry road surface is calculated as follows: F1=Gxf1=(1,420+70)0.75=1,117.5 (Kg) (1) (2) Calculation of adhesion without anti-skid belts on an ice/snow-covered road surface Adhesion coefficient f2 on an ice/snow-covered road surface = 0.05-0.25, and is take as 0.15, and then, the car adhesion on an 1ce/snow-covered road surface is calculated as follows: F2=Gf2=(1,420+70)x0.15=223.5 (Kg) (2) It can be seen from the calculated data that the car adhesion on an ice/snow-covered road surface is greatly reduced to only 20% of that on a dry road surface, and the skid resistance of the car 1s greatly reduced, which may bring many potential risks and cause many traffic accidents.
[0042] (3) Calculation of adhesion with anti-skid belts on an ice/snow-covered road surface In order to improve car safety, the present invention designs a “sheet rubber anti-skid belt for a tire”, and the adhesion of a car with the sheet rubber anti-skid belts for a tire is analyzed below. The adhesion of a car with the sheet rubber anti-skid belts for a tire comes from two adhesions. One is adhesion F3 generated when patterns of the anti-skid belts push away the ice/snow and directly touch the road surface when the car is running, and the other one is snowfield internal friction F4 generated when the patterns of the anti-skid belts are pressed into the 1ce/snow. Total adhesion F5 of a car on an ice/snow-covered road surface is calculated with the following formula: F5=F3+F4 (3): The pattern saturation of the anti-skid belt per se is generally 0.7-0.8, and the pattern saturation of the anti-skid belt based on the whole tire 1s 0.3-0.55, taking 0.45 for calculation; and a road anti-skid coefficient fl is also properly reduced, taking 0.7. A snowfield internal friction angle a is generally 19-24°, taking 21°.
[0043] F3=Saturation of anti-skid beltxGxf1=0.45*1,490x0.7=469.35 (Kg) (4) F4=Grtga=1,490xtg21=566.2 (Kg) (5) F5=F3+F4=469.35+566.2=1,035.55 (Kg) (6) From the calculations above, the car adhesions generated by the car runnmg on different road surfaces are largely different, as shown in Table 2.
[0044] Table 2 Comparison of car adhesions on different road surfaces ice/snow-covered road surface/Kg ice/snow-covered road surface/Kg Adhesion with anti~skid belts on an 4 ice/snow-covered road surface/adhesion on a F5/F1 93% pr | ice/snow-covered road surface and adhesion without anti-skid belts on an men | It can be seen from the calculations above that F5 is about 93% of F1, slightly less than the adhesion F1 on a dry road surface but much greater than the adhesion F2 on an ice/snow-covered road surface, and is about 4.63 times the adhesion on an ice/snow road surface, which indicates that the car adhesion will be greatly increased if the tires are equipped with the sheet rubber anti-skid belts in 1ce/snow days.
[0045] It should be noted that the above-mentioned embodiments are only for description of the technical solutions of the present invention rather than limitation. Although the present invention has been elaborated on with reference to preferred embodiments, those of ordinary skill in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and that these modifications or equivalent substitutions shall all be included in the scope of the claims of the present invention.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6357306A (en) * | 1986-08-27 | 1988-03-12 | Sumitomo Rubber Ind Ltd | Tire chain |
| CN105711356B (en) * | 2016-01-30 | 2018-05-18 | 金华市秸和环保技术咨询有限公司 | A kind of tire anti-skid device |
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| CN106009096A (en) * | 2016-06-24 | 2016-10-12 | 山东永泰集团有限公司 | Rubber for improving wet slip resistance of tires |
| CN108587053A (en) * | 2018-05-17 | 2018-09-28 | 合肥羿振电力设备有限公司 | A kind of weather-proof conductive rubber of high stability |
| CN111333934B (en) * | 2020-04-28 | 2022-12-20 | 三角轮胎股份有限公司 | Four-season all-steel snow and ice ground tire tread rubber composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6357306A (en) * | 1986-08-27 | 1988-03-12 | Sumitomo Rubber Ind Ltd | Tire chain |
| CN105711356B (en) * | 2016-01-30 | 2018-05-18 | 金华市秸和环保技术咨询有限公司 | A kind of tire anti-skid device |
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