CN110982305A - Production process of tire airtight material - Google Patents
Production process of tire airtight material Download PDFInfo
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- CN110982305A CN110982305A CN201911312758.8A CN201911312758A CN110982305A CN 110982305 A CN110982305 A CN 110982305A CN 201911312758 A CN201911312758 A CN 201911312758A CN 110982305 A CN110982305 A CN 110982305A
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- parts
- tire
- coal
- airtight material
- drying
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
-
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention provides a production process of a tire airtight material, which relates to the technical field of tire airtight layers, and is characterized in that raw coal is used as a raw material, and a product with a lamellar structure and a better reinforcing effect is produced through the process steps of coarse crushing, winnowing, refining, drying, fine crushing, surface activation treatment, granulation, secondary drying and the like.
Description
Technical Field
The invention relates to the technical field of tire airtight layers, in particular to a production process of a tire airtight material.
Background
The tire is a dynamic rubber, the most important part of the tire safety is the inner liner, the inner liner has the function of keeping the tire at proper inflation pressure, and the requirement on the air tightness of the inner liner of the tire is higher and higher along with the development of the passenger car tire in the directions of meridianization, tubeless formation and flattening.
Air retention is a term of art advocated for green tires, and it is seen that the importance of the innerliner to the tire is important. The air tightness of the rubber material mainly depends on the variety and the using amount of a raw rubber system and a filler, the air retention of the traditional tire is realized by using a large amount of filled butyl rubber in the tire manufacturing industry to solve the air tightness of the tire, and although the butyl rubber has low air permeability and water permeability, high heat resistance and bending resistance, can be co-vulcanized with highly unsaturated rubber and is an ideal raw material of an air-tight layer material for the tire, the butyl rubber is high in price.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the tire air-tight material which has multiple purposes, can improve the air-tightness of the tire, can replace a part of filling aids, and has low manufacturing cost and good application effect.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a production process of a tire air-tight material comprises the following steps:
1) putting the clean coal with high coalification degree and low volatility into a crusher to be crushed until the particle size is 2-5 mm;
2) winnowing the crushed coal by a coal winnowing machine to remove metal impurities;
3) mixing the coal particles without the impurities and water into slurry, stirring for 30min, and then performing filter pressing to remove grease on the surfaces of the coal particles;
4) uniformly scattering the filter cake after filter pressing, and then sending the filter cake into a rotary furnace dryer for drying until the water content is less than five thousandth of water, thus obtaining a semi-finished product;
5) grinding the semi-finished product after drying by a Raymond mill to the fineness of 100-;
6) adding the fine powder into a high-speed stirrer, adding an activating agent accounting for 2-8% of the weight of the fine powder, and stirring for 20 min;
7) feeding the mixture activated in the step 6) into a disc granulator for granulation to obtain small particles with the particle size of 2-5 mm;
8) and (5) drying the small particles in a dryer, and packaging to obtain a finished product.
Further, in the step 3), when the slurry is prepared, the weight ratio of the coal particles to the water is 1: 3.
further, in the step 6), the temperature of the high-speed stirrer is 95 ℃, and the rotating speed is 800 r/min.
Further, in step 6), the activating agent is sodium stearyl sulfate or sodium stearate.
The tire inner liner is prepared by adopting the conventional process and the airtight material produced by the production process, and comprises the following raw materials in parts by weight: 90-120 parts of brominated butyl rubber, 40-60 parts of carbon black, 20-40 parts of airtight material, 10-14 parts of aromatic oil, 2-4 parts of zinc oxide, 1-2 parts of accelerator and 1-3 parts of sulfur.
Further, the tire inner liner comprises the following raw materials in parts by weight: 100 parts of brominated butyl rubber, 50 parts of carbon black, 30 parts of airtight material, 12 parts of aromatic oil, 3 parts of zinc oxide, 1 part of accelerator and 2 parts of sulfur.
(III) advantageous effects
The invention provides a production process of a tire airtight material, which takes raw coal as a raw material and produces a product with a lamellar structure and a better reinforcing effect through the process steps of coarse crushing, winnowing, refining, drying, fine crushing, surface activation treatment, granulation, secondary drying and the like.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all 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.
Example 1:
a production process of a tire air-tight material comprises the following steps:
1) putting the clean coal with high coalification degree and low volatility into a crusher to be crushed until the particle size is 2-5 mm;
2) winnowing the crushed coal by a coal winnowing machine to remove metal impurities;
3) mixing the coal particles without the impurities and water into slurry, wherein the weight ratio of the coal particles to the water is 1: 3, stirring for 30min, and then performing filter pressing to remove grease on the surfaces of coal particles;
4) uniformly scattering the filter cake after filter pressing, and then sending the filter cake into a rotary furnace dryer for drying until the water content is less than five thousandth of water, thus obtaining a semi-finished product;
5) grinding the semi-finished product after drying by a Raymond mill to the fineness of 600 meshes to obtain fine powder;
6) adding the fine powder into a high-speed stirrer, adding an activating agent accounting for 8% of the weight of the fine powder, and stirring for 20min, wherein the temperature of the high-speed stirrer is 95 ℃, and the rotating speed is 800 r/min;
7) feeding the mixture activated in the step 6) into a disc granulator for granulation to obtain small particles with the particle size of 2 mm;
8) and (5) drying the small particles in a dryer, and packaging to obtain a finished product.
Example 2:
a production process of a tire air-tight material comprises the following steps:
1) putting the clean coal with high coalification degree and low volatility into a crusher to be crushed until the particle size is 2-5 mm;
2) winnowing the crushed coal by a coal winnowing machine to remove metal impurities;
3) mixing the coal particles without the impurities and water into slurry, wherein the weight ratio of the coal particles to the water is 1: 3, stirring for 30min, and then performing filter pressing to remove grease on the surfaces of coal particles;
4) uniformly scattering the filter cake after filter pressing, and then sending the filter cake into a rotary furnace dryer for drying until the water content is less than five thousandth of water, thus obtaining a semi-finished product;
5) grinding the dried semi-finished product by a Raymond mill to 400 meshes of fineness to obtain fine powder;
6) adding the fine powder into a high-speed stirrer, adding an activating agent accounting for 6% of the weight of the fine powder, and stirring for 20min, wherein the temperature of the high-speed stirrer is 95 ℃, and the rotating speed is 800 r/min;
7) feeding the mixture activated in the step 6) into a disc granulator for granulation to obtain small particles with the particle size of 4 mm;
8) and (5) drying the small particles in a dryer, and packaging to obtain a finished product.
Example 3:
a production process of a tire air-tight material comprises the following steps:
1) putting the clean coal with high coalification degree and low volatility into a crusher to be crushed until the particle size is 2-5 mm;
2) winnowing the crushed coal by a coal winnowing machine to remove metal impurities;
3) mixing the coal particles without the impurities and water into slurry, wherein the weight ratio of the coal particles to the water is 1: 3, stirring for 30min, and then performing filter pressing to remove grease on the surfaces of coal particles;
4) uniformly scattering the filter cake after filter pressing, and then sending the filter cake into a rotary furnace dryer for drying until the water content is less than five thousandth of water, thus obtaining a semi-finished product;
5) grinding the dried semi-finished product by a Raymond mill to obtain fine powder with the fineness of 200 meshes;
6) adding the fine powder into a high-speed stirrer, adding an activating agent accounting for 4% of the weight of the fine powder, and stirring for 20min, wherein the temperature of the high-speed stirrer is 95 ℃, and the rotating speed is 800 r/min;
7) feeding the mixture activated in the step 6) into a disc granulator for granulation to obtain small particles with the particle size of 3 mm;
8) and (5) drying the small particles in a dryer, and packaging to obtain a finished product.
Comparative example:
the tire inner liner is prepared by adopting the existing process, and the raw materials of the tire inner liner comprise the following raw materials in parts by weight: 100 parts of brominated butyl rubber, 60 parts of carbon black, 12 parts of aromatic oil, 3 parts of zinc oxide, 1 part of accelerator and 2 parts of sulfur.
Test example:
the same procedure as in comparative example was used to prepare a tire inner liner comprising the following raw materials in parts by weight, using the air-sealing material produced in example 1 of the present invention: 100 parts of brominated butyl rubber, 50 parts of carbon black, 30 parts of airtight material, 12 parts of aromatic oil, 3 parts of zinc oxide, 1 part of accelerator and 2 parts of sulfur.
The tire inner liners prepared in the comparative examples and the test examples were tested for the main technical indexes, and the results are shown in table 1.
Table 1:
| tensile strength | Elongation percentage | 300% definite elongation | Accumulated travel time | Accumulated driving mileage | |
| Test examples | 10.5 | 750 | 3.5 | 98 hours | 6235 km |
| Comparison ofExample (b) | 11.2 | 820 | 4.0 | 96 hours | 6108 km |
As can be seen from table 1: in the experimental examples in which the air-sealing material prepared in example 1 of the present invention was used as one of the components for preparing the inner liner of the tire in place of a small amount of carbon black in the comparative example, it is seen from the results in Table 1 that the air-sealing material prepared in example 1 of the present invention has an effect of improving the inner liner of the tire and the production cost of the inner liner of the tire is reduced by using the air-sealing material prepared in the present invention in place of a small amount of carbon black.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A production process of a tire air-tight material is characterized by comprising the following steps:
1) putting the clean coal with high coalification degree and low volatility into a crusher to be crushed until the particle size is 2-5 mm;
2) winnowing the crushed coal by a coal winnowing machine to remove metal impurities;
3) mixing the coal particles without the impurities and water into slurry, stirring for 30min, and then performing filter pressing to remove grease on the surfaces of the coal particles;
4) uniformly scattering the filter cake after filter pressing, and then sending the filter cake into a rotary furnace dryer for drying until the water content is less than five thousandth of water, thus obtaining a semi-finished product;
5) grinding the semi-finished product after drying by a Raymond mill to the fineness of 100-;
6) adding the fine powder into a high-speed stirrer, adding an activating agent accounting for 2-8% of the weight of the fine powder, and stirring for 20 min;
7) feeding the mixture activated in the step 6) into a disc granulator for granulation to obtain small particles with the particle size of 2-5 mm;
8) and (5) drying the small particles in a dryer, and packaging to obtain a finished product.
2. The process for producing an airtight material for tires according to claim 1, wherein in the step 3), the slurry is prepared such that the weight ratio of coal particles to water is 1: 3.
3. the process for producing an airtight material for tires according to claim 1, wherein in the step 6), the temperature of the high-speed stirrer is 95 ℃ and the rotation speed is 800 r/min.
4. The process for producing a tire air-sealing material as claimed in claim 1, wherein in the step 6), the activating agent is sodium stearyl sulfate or sodium stearate.
5. The tire inner liner produced by using the airtight material produced by the process for producing a tire inner liner according to any one of claims 1 to 4, wherein the tire inner liner comprises the following raw materials in parts by weight: 90-120 parts of brominated butyl rubber, 40-60 parts of carbon black, 20-40 parts of airtight material, 10-14 parts of aromatic oil, 2-4 parts of zinc oxide, 1-2 parts of accelerator and 1-3 parts of sulfur.
6. The tire inner-liner as claimed in claim 5, wherein the tire inner-liner comprises the following raw materials in parts by weight: 100 parts of brominated butyl rubber, 50 parts of carbon black, 30 parts of airtight material, 12 parts of aromatic oil, 3 parts of zinc oxide, 1 part of accelerator and 2 parts of sulfur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911312758.8A CN110982305A (en) | 2019-12-18 | 2019-12-18 | Production process of tire airtight material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911312758.8A CN110982305A (en) | 2019-12-18 | 2019-12-18 | Production process of tire airtight material |
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| Publication Number | Publication Date |
|---|---|
| CN110982305A true CN110982305A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911312758.8A Pending CN110982305A (en) | 2019-12-18 | 2019-12-18 | Production process of tire airtight material |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030141633A1 (en) * | 2000-04-11 | 2003-07-31 | Apex Medical Technologies, Inc. | Vulcanization of dip-molded rubber articles with molten media baths |
| CN1944543A (en) * | 2006-10-20 | 2007-04-11 | 清华大学 | Method for preparing carbon black filler using waste tire pyrolizing carbon slag |
| CN102250497A (en) * | 2011-05-26 | 2011-11-23 | 芮立 | Preparation method of novel carbon black for rubbers |
| CN102337047A (en) * | 2011-07-11 | 2012-02-01 | 安徽省勇锋化工有限责任公司 | Production method of cladded high-water-dispersity carbon black product |
| CN102585564A (en) * | 2012-01-12 | 2012-07-18 | 韩钊武 | Method for preparing carbon black from coal |
| CN105602132A (en) * | 2016-01-29 | 2016-05-25 | 双钱集团上海轮胎研究所有限公司 | Material for tyre inner liner and tire rubber prepared from same |
-
2019
- 2019-12-18 CN CN201911312758.8A patent/CN110982305A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030141633A1 (en) * | 2000-04-11 | 2003-07-31 | Apex Medical Technologies, Inc. | Vulcanization of dip-molded rubber articles with molten media baths |
| CN1944543A (en) * | 2006-10-20 | 2007-04-11 | 清华大学 | Method for preparing carbon black filler using waste tire pyrolizing carbon slag |
| CN102250497A (en) * | 2011-05-26 | 2011-11-23 | 芮立 | Preparation method of novel carbon black for rubbers |
| CN102337047A (en) * | 2011-07-11 | 2012-02-01 | 安徽省勇锋化工有限责任公司 | Production method of cladded high-water-dispersity carbon black product |
| CN102585564A (en) * | 2012-01-12 | 2012-07-18 | 韩钊武 | Method for preparing carbon black from coal |
| CN105602132A (en) * | 2016-01-29 | 2016-05-25 | 双钱集团上海轮胎研究所有限公司 | Material for tyre inner liner and tire rubber prepared from same |
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Application publication date: 20200410 |
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