CN116515315A - Micro-foaming rubber particles and preparation method thereof - Google Patents
Micro-foaming rubber particles and preparation method thereof Download PDFInfo
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- CN116515315A CN116515315A CN202310515025.4A CN202310515025A CN116515315A CN 116515315 A CN116515315 A CN 116515315A CN 202310515025 A CN202310515025 A CN 202310515025A CN 116515315 A CN116515315 A CN 116515315A
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- rubber
- micro
- foaming
- powder
- banburying
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 83
- 238000005187 foaming Methods 0.000 title claims abstract description 34
- 239000002245 particle Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000011575 calcium Substances 0.000 claims abstract description 28
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 27
- 229920000642 polymer Polymers 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 8
- 239000000049 pigment Substances 0.000 claims abstract description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 14
- 239000004636 vulcanized rubber Substances 0.000 claims description 10
- 239000004088 foaming agent Substances 0.000 claims description 8
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 7
- 239000005662 Paraffin oil Substances 0.000 claims description 7
- 235000021355 Stearic acid Nutrition 0.000 claims description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- 230000003712 anti-aging effect Effects 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 7
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 7
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 7
- 239000012763 reinforcing filler Substances 0.000 claims description 7
- 239000008117 stearic acid Substances 0.000 claims description 7
- 239000011593 sulfur Substances 0.000 claims description 7
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- 239000011787 zinc oxide Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 238000004073 vulcanization Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 235000010215 titanium dioxide Nutrition 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 16
- 239000000463 material Substances 0.000 abstract description 9
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 8
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 238000013012 foaming technology Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2205/00—Foams characterised by their properties
- C08J2205/06—Flexible foams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/16—Ethene-propene or ethene-propene-diene copolymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2491/06—Waxes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Emergency Medicine (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention relates to micro-foaming rubber particles, which comprise the following raw materials in parts by weight: 10 kg of ethylene propylene diene monomer, 20 kg of high polymer rubber powder, 25 kg of light calcium, 116 kg of heavy calcium, 3 kg of red bottom pigment, 27 kg of white oil and 1.13 kg of small powder. The invention also provides a preparation method of the micro-foaming rubber particles. The invention improves the material proportion of the foaming rubber particles, and by adding the high polymer rubber powder and adjusting the proportion of light calcium carbonate, heavy calcium carbonate, white oil and small powder, the micro foaming rubber particles become lighter and softer, the materials are saved, and the foot feeling can be increased when the sole is manufactured.
Description
Technical Field
The invention relates to the technical field of rubber, in particular to micro-foaming rubber particles and a preparation method thereof.
Background
Foamed rubber is also widely known as rubber foaming technology, and is a treatment means for treating rubber with a specific foaming agent to give the rubber its characteristic properties. The technology is widely applied in the current production field, and is the most common method in the current production work.
The foaming rubber products are one of the most used products in the current production field, and can be divided into a microporous structure and a porous structure according to holes. The microcellular structure can be further divided into a single foamed article and a continuous foamed article. Such products can be classified into natural rubber foamed products, isoprene foamed products, SBR foamed products, ethylene propylene rubber foamed products, etc., according to the raw materials of rubber. Microcellular foam rubber articles are used for soles, saddle cushions, runways, and the like. The sole is directly related to the comfort of the wearer, and in order to be comfortable to wear while giving consideration to durability, the sole is required to be light, but also to have good elasticity and wear resistance. In view of this, we propose a micro-foaming rubber particle and a method for preparing the same.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, adapt to the actual needs and provide micro-foaming rubber particles.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
the micro-foaming rubber particles comprise the following raw materials in parts by weight: 10 kg of ethylene propylene diene monomer, 20 kg of high polymer rubber powder, 25 kg of light calcium, 116 kg of heavy calcium, 3 kg of red bottom pigment, 27 kg of white oil and 1.13 kg of small powder.
The invention improves the material proportion of the foaming rubber particles, and by adding the high polymer rubber powder and adjusting the proportion of light calcium carbonate, heavy calcium carbonate, white oil and small powder, the micro foaming rubber particles become lighter and softer, the materials are saved, and the foot feeling can be increased when the sole is manufactured.
Preferably, 20 kg of reinforcing filler and 1 kg of titanium white powder are also included.
Preferably, 0.3 kg of processing aid, 0.3 kg of anti-aging agent and 10 kg of paraffin oil are also included.
Preferably, the heavy calcium is stone dust.
Preferably, the small pieces comprise sulfur, zinc oxide, stearic acid, an accelerator, and a foaming agent.
The invention also provides a preparation method of the micro-foaming rubber particles, which comprises the following steps:
(1) Stirring: firstly, delivering heavy calcium into a powder storage tank, then delivering the heavy calcium into a weighing tank through a packing auger, starting an internal mixer, and banburying the raw materials of ethylene propylene diene monomer, high polymer rubber powder, light calcium, heavy calcium, red bottom pigment, white oil, reinforcing filler and iron powder for 10-15 minutes; continuously adding the processing aid, the anti-aging agent and the paraffin oil to carry out banburying for 5-10 minutes; continuously adding sulfur, zinc oxide, stearic acid, an accelerator and a foaming agent, banburying for 1-3 minutes, and discharging to obtain mixed rubber;
(2) Extrusion: extruding the mixed rubber to obtain extruded rubber;
(3) Vulcanizing: vulcanizing the extruded rubber to obtain vulcanized rubber;
(4) Slicing: slicing the vulcanized rubber to obtain a rubber sheet;
(5) Granulating: granulating the rubber sheet to obtain micro-foaming rubber particles.
Preferably, the banburying temperature in the step (1) is 100 ℃, and the banburying time is 5-10min.
Preferably, the extrusion temperature in the step (2) is controlled to be 80-85 ℃ and the temperature fluctuation range is 3-5 ℃.
Preferably, the vulcanization temperature in the step (3) is 150 ℃, and the temperature is kept for 50min.
Compared with the prior art, the invention has the beneficial effects that: the invention improves the material proportion of the foaming rubber particles, and by adding the high polymer rubber powder and adjusting the proportion of light calcium carbonate, heavy calcium carbonate, white oil and small powder, the micro foaming rubber particles become lighter and softer, the materials are saved, and the foot feeling can be increased when the sole is manufactured.
Detailed Description
The invention is further illustrated by the following examples:
example 1
The embodiment provides a preparation method of micro-foaming rubber particles, which comprises the following steps:
(1) Stirring: firstly, delivering heavy calcium into a powder storage tank, then delivering the heavy calcium into a weighing tank through a packing auger, starting an internal mixer, and banburying the raw materials of ethylene propylene diene monomer, high polymer rubber powder, light calcium, heavy calcium, red bottom pigment, white oil, reinforcing filler and iron powder for 10-15 minutes at a banburying temperature of 100 ℃; continuously adding the processing aid, the anti-aging agent and the paraffin oil to carry out banburying for 5-10 minutes; continuously adding sulfur, zinc oxide, stearic acid, an accelerator and a foaming agent, banburying for 1-3 minutes, and discharging to obtain mixed rubber;
(2) Extrusion: extruding the mixed rubber, wherein the extruding temperature is 80 ℃, and the temperature fluctuation range is 3 ℃ to obtain extruded rubber;
(3) Vulcanizing: vulcanizing the extruded rubber, wherein the vulcanization temperature is 150 ℃, and preserving heat for 50min to obtain vulcanized rubber;
(4) Slicing: slicing the vulcanized rubber to obtain a rubber sheet;
(5) Granulating: granulating the rubber sheet to obtain micro-foaming rubber particles.
Example 2
The embodiment provides a preparation method of micro-foaming rubber particles, which comprises the following steps:
(1) Stirring: firstly, delivering heavy calcium into a powder storage tank, then delivering the heavy calcium into a weighing tank through a packing auger, starting an internal mixer, and banburying the raw materials of ethylene propylene diene monomer, high polymer rubber powder, light calcium, heavy calcium, red bottom pigment, white oil, reinforcing filler and iron powder for 10-15 minutes at a banburying temperature of 100 ℃; continuously adding the processing aid, the anti-aging agent and the paraffin oil to carry out banburying for 5-10 minutes; continuously adding sulfur, zinc oxide, stearic acid, an accelerator and a foaming agent, banburying for 1-3 minutes, and discharging to obtain mixed rubber;
(2) Extrusion: extruding the mixed rubber, wherein the extruding temperature is 82 ℃, and the temperature fluctuation range is 4 ℃, so as to obtain extruded rubber;
(3) Vulcanizing: vulcanizing the extruded rubber, wherein the vulcanization temperature is 150 ℃, and preserving heat for 50min to obtain vulcanized rubber;
(4) Slicing: slicing the vulcanized rubber to obtain a rubber sheet;
(5) Granulating: granulating the rubber sheet to obtain micro-foaming rubber particles.
Example 3
The embodiment provides a preparation method of micro-foaming rubber particles, which comprises the following steps:
(1) Stirring: firstly, delivering heavy calcium into a powder storage tank, then delivering the heavy calcium into a weighing tank through a packing auger, starting an internal mixer, and banburying the raw materials of ethylene propylene diene monomer, high polymer rubber powder, light calcium, heavy calcium, red bottom pigment, white oil, reinforcing filler and iron powder for 10-15 minutes at a banburying temperature of 100 ℃; continuously adding the processing aid, the anti-aging agent and the paraffin oil to carry out banburying for 5-10 minutes; continuously adding sulfur, zinc oxide, stearic acid, an accelerator and a foaming agent, banburying for 1-3 minutes, and discharging to obtain mixed rubber;
(2) Extrusion: extruding the mixed rubber, wherein the extruding temperature is 85 ℃, and the temperature fluctuation range is 5 ℃, so as to obtain extruded rubber;
(3) Vulcanizing: vulcanizing the extruded rubber, wherein the vulcanization temperature is 150 ℃, and preserving heat for 50min to obtain vulcanized rubber;
(4) Slicing: slicing the vulcanized rubber to obtain a rubber sheet;
(5) Granulating: granulating the rubber sheet to obtain micro-foaming rubber particles.
According to the invention, the material proportion of the foaming rubber particles is improved, and the proportions of light calcium carbonate, heavy calcium carbonate, white oil and small materials are adjusted by adding the high polymer rubber powder, so that the micro foaming rubber particles become lighter and softer, the materials are saved, and the feel of feet can be increased when the sole is manufactured.
The embodiments of the present invention are disclosed as preferred embodiments, but not limited thereto, and those skilled in the art will readily appreciate from the foregoing description that various modifications and variations can be made without departing from the spirit of the present invention.
Claims (9)
1. The micro-foaming rubber particle is characterized by comprising the following raw materials in parts by weight: 10 kg of ethylene propylene diene monomer, 20 kg of high polymer rubber powder, 25 kg of light calcium, 116 kg of heavy calcium, 3 kg of red bottom pigment, 27 kg of white oil and 1.13 kg of small powder.
2. A micro-foaming rubber granule according to claim 1, characterized in that: also comprises 20 kg of reinforcing filler and 1 kg of titanium white powder.
3. A micro-foaming rubber granule as claimed in claim 2, characterized in that: also comprises 0.3 kg of processing aid, 0.3 kg of anti-aging agent and 10 kg of paraffin oil.
4. A micro-foaming rubber granule according to claim 1, characterized in that: the heavy calcium is stone powder.
5. A micro-foaming rubber granule according to claim 1, characterized in that: the small powder comprises sulfur, zinc oxide, stearic acid, an accelerator and a foaming agent.
6. A process for the preparation of micro-expanded rubber particles according to any one of claims 1 to 5, comprising the steps of:
(1) Stirring: firstly, delivering heavy calcium into a powder storage tank, then delivering the heavy calcium into a weighing tank through a packing auger, starting an internal mixer, and banburying the raw materials of ethylene propylene diene monomer, high polymer rubber powder, light calcium, heavy calcium, red bottom pigment, white oil, reinforcing filler and iron powder for 10-15 minutes; continuously adding the processing aid, the anti-aging agent and the paraffin oil to carry out banburying for 5-10 minutes; continuously adding sulfur, zinc oxide, stearic acid, an accelerator and a foaming agent, banburying for 1-3 minutes, and discharging to obtain mixed rubber;
(2) Extrusion: extruding the mixed rubber to obtain extruded rubber;
(3) Vulcanizing: vulcanizing the extruded rubber to obtain vulcanized rubber;
(4) Slicing: slicing the vulcanized rubber to obtain a rubber sheet;
(5) Granulating: granulating the rubber sheet to obtain micro-foaming rubber particles.
7. The method for producing a micro-foaming rubber granule according to claim 6, wherein: the banburying temperature in the step (1) is 100 ℃, and the banburying time is 5-10min.
8. The method for producing a micro-foaming rubber granule according to claim 6, wherein: the extrusion temperature in the step (2) is controlled to be 80-85 ℃, and the temperature fluctuation range is 3-5 ℃.
9. The method for producing a micro-foaming rubber granule according to claim 6, wherein: and (3) the vulcanization temperature in the step (3) is 150 ℃, and the temperature is kept for 50min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310515025.4A CN116515315A (en) | 2023-05-09 | 2023-05-09 | Micro-foaming rubber particles and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310515025.4A CN116515315A (en) | 2023-05-09 | 2023-05-09 | Micro-foaming rubber particles and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN116515315A true CN116515315A (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310515025.4A Pending CN116515315A (en) | 2023-05-09 | 2023-05-09 | Micro-foaming rubber particles and preparation method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN116515315A (en) |
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2023
- 2023-05-09 CN CN202310515025.4A patent/CN116515315A/en active Pending
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