CN115197488A - Method for manufacturing special material for sealing strip by using waste tire - Google Patents
Method for manufacturing special material for sealing strip by using waste tire Download PDFInfo
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- CN115197488A CN115197488A CN202210880265.XA CN202210880265A CN115197488A CN 115197488 A CN115197488 A CN 115197488A CN 202210880265 A CN202210880265 A CN 202210880265A CN 115197488 A CN115197488 A CN 115197488A
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- sealing strip
- special material
- manufacturing
- waste tire
- rubber powder
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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
- C08L19/00—Compositions of rubbers not provided for in groups C08L7/00 - C08L17/00
- C08L19/003—Precrosslinked rubber; Scrap rubber; Used vulcanised rubber
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention provides a method for manufacturing a special material for a sealing strip by using waste tires, which comprises the following steps: s1: cutting the waste tire into particles, and grinding the particles into rubber powder by using a tearing and grinding machine; s2: and (2) mixing the rubber powder treated in the step (S1), the ethylene-octene polymer, dicumyl peroxide, triallyl isocyanurate and an antioxidant, and adding the mixture into an internal mixer for internal mixing to obtain the special material for the sealing strip. The invention provides a method for manufacturing a special material for a sealing strip by using a waste tire, which is characterized in that rubber powder with a proper particle size is obtained after the waste tire is subjected to primary processing, then the rubber powder is mixed with other components to prepare the special material for the sealing strip, and the whole preparation process has no dust, waste gas and solid waste pollution.
Description
Technical Field
The invention relates to the field of chemical synthesis, in particular to a method for manufacturing a special material for a sealing strip by using waste tires.
Background
In recent years, the development and popularization of automobiles greatly improve the living standard of people, but the waste tires put heavy pressure on environmental protection because the waste tires are not easily broken to be recycled like hard high polymers and are not easily degraded like degradable polymers. Therefore, many developed countries have developed financial subsidy policies that encourage society to recycle waste tires to protect the environment. The current automobile keeping amount in China is rising year by year, more and more waste tires are generated every year, and the recycling of the waste tires is urgent.
The existing waste tyre processing and recycling technology comprises a freezing method, a direct crushing method and a high-temperature cracking method. The freezing method uses liquid nitrogen for freezing, so that the waste tire material is crushed after becoming brittle, but the energy consumption is huge; the direct grinding method has simple process, but has serious dust pollution and overhigh grinding temperature, easily causes the breakage of molecular chains of waste tire materials to influence the rubber performance, the ground rubber powder can only be used for low-end applications such as road asphalt and the like, cannot be used for high-end fields such as sealing strips and the like, and the overhigh temperature can cause ignition during grinding; the high-temperature cracking method is also implemented by devices in China, but the sulfur content of cracked gas and oil products is very high, and the cracked gas and oil products can be used only by further desulfurization, so the cost is too high.
Disclosure of Invention
The invention aims to provide a method for manufacturing a special material for a sealing strip by using a waste tire, and aims to solve the problems that the utilization efficiency of the waste tire is low and a method for circularly preparing the special material for the sealing strip by using the waste tire is lacked in the prior art.
In order to achieve the purpose, the invention provides a method for manufacturing a special material for a sealing strip by using waste tires, which comprises the following steps:
s1: cutting waste tires into particles, and grinding the particles into rubber powder by using a tearing mill;
s2: and (2) mixing the rubber powder treated in the step (S1) with the ethylene-octene polymer, dicumyl peroxide, triallyl isocyanurate and an antioxidant, and adding the mixture into an internal mixer for banburying to obtain the special material for the sealing strip.
Further, in S1, the operating condition of the tearing and grinding machine is a pressure: 3Mpa, temperature: 50-110 ℃.
Further, in the step S1, the rubber powder is obtained by performing dehydration and drying steps after the granular waste tire is water-milled by a tearing and grinding machine.
Further, in the step S1, the dried rubber powder is subjected to air separation and classification, and 250-300 meshes of rubber powder is selected to enter the step S2.
Further, in the step S2, the mixture added into the internal mixer includes the following components by mass percent:
further, in the S2, the antioxidant is selected from a combination of an antioxidant 1076 and an antioxidant 264.
Further, in the S2, the ratio of the antioxidant 1076 to the antioxidant 264 is 1.
Further, the working temperature of the internal mixer is 120-170 ℃.
Further, the preparation method further comprises the following steps of S3: and (3) extruding the special material for the rear sealing strip obtained by the treatment in the step (S2) into a strip material by using a double-screw extruder, and cooling to obtain the special material for the strip sealing strip.
Further, the working temperature of the double-screw extruder is 100-150 ℃.
The invention provides a method for manufacturing a special material for a sealing strip by using waste tires, which is characterized in that rubber powder with proper particle size is obtained after the waste tires are subjected to primary processing, then the rubber powder is mixed with other components to prepare the special material for the sealing strip, and the whole preparation process has no dust, waste gas and solid waste pollution.
Drawings
Fig. 1 is a flowchart of a method for manufacturing a special material for a sealing strip by using waste tires according to an embodiment of the present invention.
Detailed Description
The method for manufacturing a special material for a sealing strip by using waste tires according to the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is provided for the purpose of facilitating and clearly illustrating embodiments of the present invention.
In the prior art, the waste tires are treated by methods such as a freezing method, a direct crushing method and the like with high cost or high pollution, the treated waste tires are mainly used for low-end applications such as road asphalt and the like, and a scheme for preparing sealing strips by using the waste tires is not disclosed in the prior art. The patent of the inventor's prior application with publication number CN111168893A discloses a tearing and grinding device and a water grinding method for elastic high polymer, which discloses a scheme for water grinding waste tires, and can water-grind the waste tires into high polymer powder with different particle sizes, but the patent scheme does not explore the subsequent recycling mode of the waste tires, does not explore how to prepare rubber powder suitable for preparing a special material for sealing strips through the tearing and grinding device, and does not mention how to prepare the special material for sealing strips by using the rubber powder, that is, does not give a technical path for preparing the special material for sealing strips by using the waste tires. On the basis, the inventor further carries out intensive research and exploration and invents a scheme for preparing the special material for the sealing strip by using the waste tire.
Referring to fig. 1, a flow chart of a method for manufacturing a sealing strip special material by using waste tires provided by the present invention specifically includes the following steps:
s1: cutting the waste tire into particles, and grinding the particles into rubber powder by using a tearing and grinding machine; particularly, the discarded tire can be firstly subjected to preliminary washing to remove silt impurities on the surface of the tire, then the discarded tire is thrown into a double-screw cutting machine to be cut into large particles of 3-5mm, then the discarded tire is put into a settling tank provided with a magnet, is added with water, is stirred for 5 minutes and then is stood for settling for 10 minutes, and the proportion of the large particles to the water can be 1, so that impurities such as iron, gravel and the like attached to the tire can be removed. And then feeding the large particles after impurity removal into a constant-temperature constant-pressure tearing and grinding machine, adding water for tearing and grinding, and dehydrating and drying after tearing and grinding to obtain the ultrafine rubber powder with the water content of less than 0.5%. When the tearing mill works, water temperature control is realized by adjusting the grinding sheet gap of the self-suction tearing mill, heat comes from friction to generate heat, the smaller the gap, the higher the temperature, and the finer the torn particles. In order to ensure that the granularity of the rubber powder obtained by tearing and grinding is just suitable for preparing the special material for the sealing rubber strip, the grain diameter can not be too coarse or too fine, preferably, the working condition of the tearing and grinding machine can be set to be 3Mpa, and the water temperature can be set to be 50-110 ℃. Therefore, the grain diameter range of the ultra-fine rubber powder which is torn and ground can ensure that most of the ultra-fine rubber powder is between 250 and 300 meshes, and the rubber powder in the grain diameter range has the best effect of preparing the special material for the sealing strip. Preferably, after drying, a winnowing and grading step is also carried out, and 250-300 meshes of rubber powder are screened out to prepare the special material for the sealing strip, so as to ensure that the next synthesis effect is optimal.
S2: and (2) mixing the rubber powder treated in the step (S1) with ethylene-octene Polymer (POE), dicumyl peroxide (DCP), triallyl isocyanurate (TAIC) and an antioxidant, and adding the mixture into an internal mixer for banburying to obtain the special material for the sealing strip. The mixture added into the internal mixer comprises the following components in percentage by mass:
preferably, the antioxidant is selected from the group consisting of antioxidant 1076 and antioxidant 264 in combination. The ratio of the antioxidant 1076 to the antioxidant 264 may be set to 1.
The operating temperature of the internal mixer can be set to 120-170 ℃ when the internal mixer is in operation. The banburying material is the special material for the sealing strip and can be used for preparing the sealing strip. Further, because the sealing strip is generally strip-shaped, and the material after banburying is granular this moment, therefore, in order to further facilitate the preparation sealing strip, this embodiment still includes S3: and (3) extruding the special material for the rear sealing strip obtained by the treatment in the step (S2) into a strip material by using a double-screw extruder, and cooling to obtain the special material for the strip sealing strip. The working temperature of the double-screw extruder is 100-150 ℃. The special material for the strip-shaped sealing strip can be directly used for producing sealing strips with various specifications, such as aluminum alloy door and window sealing strips, plastic steel door and window sealing strips, automobile sealing strips, industrial sealing strips and the like, so that the recycling of waste tires in high-end fields is realized, and the production cost of the sealing strips is reduced. The whole production process has no dust, waste gas and solid waste pollution, and the high-quality recycling of the waste tires is realized.
For further understanding of the present invention, the preferred embodiments of the present invention will be described in conjunction with more detailed embodiments to highlight the features and characteristics of the method for manufacturing a sealant exclusive material using waste tires provided by the present invention. The description is only intended to illustrate the features and advantages of the method of the invention, and not to limit the scope of protection of the invention.
In different embodiments, the general flow of the preparation method is basically the same, except that the operating conditions of the tearing mill in the step S1 and the banburying temperature of the internal mixer in the step S2 are different, and the proportions of the reaction components added into the internal mixer in the step S2 are different.
According to the difference of the operating conditions of the tearing mill in the step S1 and the banburying temperature of the internal mixer in the step S2 in the preparation method, the following 3 examples are provided to describe the operating conditions in the preparation method. As shown in table 1 below.
TABLE 1 working conditions of the apparatus in the preparation method
| Operating parameters | Example 1 | Example 2 | Examples3 |
| Tearing and grinding machine reaction pressure/Mpa | 3 | 3 | 3 |
| Tear mill reaction temperature/. Degree.C | 80 | 100 | 110 |
| Internal mixer mixing temperature/DEG C | 160 | 130 | 170 |
According to different proportions of components in the step S2 in the preparation method, the invention provides the following 3 examples to describe the proportions of the components in the preparation method. As shown in table 2 below.
TABLE 2 S2 proportions of the components entering the tearing and grinding machine in the step
| Component raw materials | Example 1 | Example 2 | Example 3 |
| Ethylene-octene Polymer (POE) | 10％ | 30％ | 50％ |
| Dicumyl peroxide (DCP) | 0.03％ | 0.06％ | 0.1％ |
| Triallylisocyanuric ester (TAIC) | 0.3％ | 0.6％ | 1％ |
| Antioxidant 1076 | 0.007％ | 0.01％ | 0.03％ |
| Antioxidant 264 | 0.007％ | 0.003％ | 0.003％ |
| Rubber powder | Allowance of | Balance of | Balance of |
The invention provides a method for manufacturing a special material for a sealing strip by using waste tires, which is characterized in that rubber powder with proper particle size is obtained after the waste tires are subjected to primary processing, then the rubber powder is mixed with other components to prepare the special material for the sealing strip, and the whole preparation process has no dust, waste gas and solid waste pollution.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A method for manufacturing a special material for a sealing strip by using waste tires is characterized by comprising the following steps:
s1: cutting the waste tire into particles, and grinding the particles into rubber powder by using a tearing and grinding machine;
s2: and (2) mixing the rubber powder treated in the step (S1) with the ethylene-octene polymer, dicumyl peroxide, triallyl isocyanurate and an antioxidant, and adding the mixture into an internal mixer for banburying to obtain the special material for the sealing strip.
2. The method for manufacturing a special material for the sealing strip by using the waste tire as claimed in claim 1, wherein in the step S1, the operating condition of the tearing and grinding machine is pressure: 3Mpa, temperature: 50-110 ℃.
3. The method for manufacturing the special material for the sealing strip by using the waste tire as claimed in claim 2, wherein in the step S1, the rubber powder is obtained by performing water grinding on the granular waste tire by using a tearing and grinding machine and then performing dehydration and drying.
4. The method for manufacturing the special material for the sealing strip by using the waste tire as claimed in claim 3, wherein in the step S1, the dried rubber powder is further subjected to air separation and classification, and 250-300 meshes of rubber powder is selected to enter the step S2.
5. The method for manufacturing a material special for a sealing strip by using the waste tire as claimed in claim 1, wherein in the step S2, the mixture added into the internal mixer comprises the following components in percentage by mass:
6. the method for manufacturing the special material for the sealing strip by using the waste tire as claimed in claim 5, wherein in the step S2, the antioxidant is selected from a combination of an antioxidant 1076 and an antioxidant 264.
7. The method for manufacturing the material special for the sealing strip by using the waste tire according to claim 6, wherein in the S2, the ratio of the antioxidant 1076 to the antioxidant 264 is 1.
8. The method for manufacturing a special material for the sealing strip by using the waste tire as claimed in claim 1, wherein the working temperature of the internal mixer is 120-170 ℃.
9. The method for manufacturing a special material for a sealing tape using waste tires according to any one of claims 1 to 8, further comprising S3: and (3) extruding the special material for the rear sealing strip obtained by the treatment in the step (S2) into a strip material by using a double-screw extruder, and cooling to obtain the special material for the strip sealing strip.
10. The method for manufacturing the special material for the sealing strip by using the waste tire as claimed in claim 9, wherein the working temperature of the twin-screw extruder is 100-150 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210880265.XA CN115197488A (en) | 2022-07-25 | 2022-07-25 | Method for manufacturing special material for sealing strip by using waste tire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210880265.XA CN115197488A (en) | 2022-07-25 | 2022-07-25 | Method for manufacturing special material for sealing strip by using waste tire |
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| CN115197488A true CN115197488A (en) | 2022-10-18 |
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| CN202210880265.XA Pending CN115197488A (en) | 2022-07-25 | 2022-07-25 | Method for manufacturing special material for sealing strip by using waste tire |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107759866A (en) * | 2017-11-06 | 2018-03-06 | 广西小草信息产业有限责任公司 | A kind of method that thermoplastic elastic material is prepared using waste rubber |
| CN110204808A (en) * | 2019-06-05 | 2019-09-06 | 禄丰航宇工贸有限责任公司 | A kind of modified rubber and preparation method thereof recycling waste rubber tire |
| CN110885504A (en) * | 2019-12-23 | 2020-03-17 | 南京博丞橡塑有限公司 | Sealing strip suitable for glass curtain wall frame and production process thereof |
| CN111168893A (en) * | 2020-01-15 | 2020-05-19 | 张斌 | Tearing and grinding device and water grinding method for elastic high polymer |
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2022
- 2022-07-25 CN CN202210880265.XA patent/CN115197488A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107759866A (en) * | 2017-11-06 | 2018-03-06 | 广西小草信息产业有限责任公司 | A kind of method that thermoplastic elastic material is prepared using waste rubber |
| CN110204808A (en) * | 2019-06-05 | 2019-09-06 | 禄丰航宇工贸有限责任公司 | A kind of modified rubber and preparation method thereof recycling waste rubber tire |
| CN110885504A (en) * | 2019-12-23 | 2020-03-17 | 南京博丞橡塑有限公司 | Sealing strip suitable for glass curtain wall frame and production process thereof |
| CN111168893A (en) * | 2020-01-15 | 2020-05-19 | 张斌 | Tearing and grinding device and water grinding method for elastic high polymer |
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