CN109679229A - A kind of rubber grain and preparation method thereof - Google Patents
A kind of rubber grain and preparation method thereof Download PDFInfo
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- CN109679229A CN109679229A CN201710976030.XA CN201710976030A CN109679229A CN 109679229 A CN109679229 A CN 109679229A CN 201710976030 A CN201710976030 A CN 201710976030A CN 109679229 A CN109679229 A CN 109679229A
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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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/126—Polymer particles coated by polymer, e.g. core shell structures
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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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/246—Intercrosslinking of at least two polymers
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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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
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
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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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—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
- C08J2323/16—Ethene-propene or ethene-propene-diene copolymers
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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
- C08J2391/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2391/06—Waxes
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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
- 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
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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
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2491/06—Waxes
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- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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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- Polymers & Plastics (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The present invention provides a kind of rubber grains and preparation method thereof, are made of several rubber grains, and the part of the surface of partial rubber particle is the broken face of tension failure, and partial rubber particle has at least one crystal region, and crystal region includes silicon carbide;Each rubber grain is made of rubber grain A and rubber grain B, and the hardness of rubber grain A is less than the hardness of rubber grain B;The average particle size of rubber grain B is more at least three times greater than the average particle size of rubber grain A;The average particle size of rubber grain B is 1-300 microns, and the average particle size of rubber grain A is 0.01-30 microns;Rubber grain A and rubber grain B are prepared from the following raw materials in parts by weight and are made: EP rubbers 24-28;Calcium carbonate 70-80;Crosslinking agent 6-8;Peroxide vulcanizing agent 6-8;Paraffin oil 24-28;Pigment 0.6-3.Preparation method of the present invention is simple, and the rubber grain prepared has high resistance to natural weathering performance, and product is non-corrosive, good physical performance.
Description
Technical field
The present invention relates to a kind of rubber material, in particular to a kind of method for preparing rubber grain.
Background technique
It includes scrap rubber, sneakers bottom, leftover pieces, cable skin, rubber that rubber grain, which mainly passes through various waste olds,
The production of the waste olds Raw material processings such as leftover pieces, car mat band, automobile tire.
Rubber grain is divided into black rubber particle and two kinds of colorful rubber particle;And colorful rubber particle divides green rubber
The colors such as particle, red rubber particle, blue rubber grain, white rubber particle, brown rubber grain, yellow rubber grain
Rubber grain.
Rubber grain has many advantages, such as that anti-aging, the service life is long, easy to maintain;Dedicated black rubber particle is long, the spies such as easy to maintain
Point;All kinds of synthetic courts mated formation generally are all up mark through detecting;Specification has 1 to 2 millimeter and 2 to 4 millimeters etc., using no dirt
Waste old raw material is contaminated, is process with manufacture rubber grain special equipment;More irregular rubber grain mix and match of rib multi-panel
It is suitable for, specification grade scale, within the impurity contents such as fiber, dust control 1%, with the resin in all kinds of courts of plastic cement of mating formation, solid
It is good that being firmly bonded property is blended in the raw materials such as agent;The product manufactured with the special (purpose) rubber particle, elasticity is moderate, actual situation appropriateness, appearance
It is beautiful, meet national standard, with elasticity is moderate, anti-skidding, seepage of water is good, wear-resisting, fire-retardant, non-toxic and non-radioactive, anti-aging, longevity
Life.
Rubber grain can be adapted for various sport pipe institutes, indoor and outdoor plastic cement race track and indoor and outdoor road, landscape, place
Be laid with, the techniqueflow of existing production rubber grain is complicated, energy consumption is higher, so the rubber grain physical property produced compared with
It is low.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of preparation method is simple, the rubber grain prepared has high resistance to
Natural weathering performance, product is non-corrosive, rubber grain of good physical performance and preparation method thereof.
In order to achieve the above objectives, technical scheme is as follows:
A kind of rubber grain is made of several rubber grains, and the part of the surface of partial rubber particle is tension failure
Broken face, partial rubber particle have at least one crystal region, and crystal region includes silicon carbide;Each rubber grain is by rubber
Grain A and rubber grain B composition, the hardness of rubber grain A are less than the hardness of rubber grain B, wherein the surface grain of rubber grain A
The rubber grain B of the degree greater than the rubber grain A is covered;Average grain of the average particle size of rubber grain B than rubber grain A
It spends at least three times greater;The average particle size of rubber grain B is 1-300 microns, and the average particle size of rubber grain A is 0.01-30 microns;
Rubber grain A and rubber grain B are prepared from the following raw materials in parts by weight and are made:
In one embodiment of the invention, the rubber grain A and rubber grain B by following weight proportion raw material
It is made:
In one embodiment of the invention, the shape of the rubber grain A is spherical shape.
In one embodiment of the invention, the G/D value that the rubber grain is obtained with raman spectroscopy measurement is between 2-
2.8。
A method of rubber grain being prepared, its step are as follows:
(1) preparation of rubber grain A and rubber grain B
Mixer mixing is put into after going each raw material to mix by the weight proportion, melting temperature is 110-120 DEG C, the time is
12-16 minutes;It is refined after mixing in investment open mill, refining temperature is 64-68 DEG C, the time is 14-18 minutes, must be refined
Mixture;
Refining mixture is put into extruder continuous sheeting, it is 110-130 DEG C that built-in temperature is squeezed out when extrusion;Then
Investment vulcanizing tank is vulcanized, and vulcanization time is 34-38 minutes, temperature is 140-160 DEG C, pressure is 10-12 kilograms;After vulcanization
Tank out is granulated after room temperature is 11-13 hours cooling and is classified to obtain finished rubber particle A or rubber grain B;
(2) preparation of rubber grain
Varigrained rubber grain A and rubber grain B are put into dispersion liquid, both make to separate, then from containing rubber
Decentralized medium is removed in the dispersion liquid of glue particle A and rubber grain B, finally rubber grain B is covered on rubber grain A and is formed
Single rubber grain;
(3) preparation of rubber particle composite
By several rubber grains it is crosslinked after compounded rubber particulate composition formed by the impact of high velocity jet body,
The temperature range of the contact surface of high velocity jet body and the crosslinked rubber grain is 50-80 DEG C, high velocity jet body
Single water beam moment initial kinetic energy range is 8 × 103-1000×103KJ, high velocity jet body are using water as the double of main medium
Xiang Liu, wherein the Reynolds number of high velocity jet body is 40-300 ten thousand.
Through the above technical solutions, the beneficial effects of the present invention are:
Preparation method of the present invention is simple, and the rubber grain prepared has high resistance to natural weathering performance, and product is non-corrosive,
Good physical performance.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below into
One step illustrates the present invention.
Embodiment 1
The invention discloses a kind of rubber grains, are made of several rubber grains, the part of the surface of partial rubber particle
For the broken face of tension failure, partial rubber particle has at least one crystal region, and crystal region includes silicon carbide;Each rubber
Particle is made of rubber grain A and rubber grain B, and the hardness of rubber grain A is less than the hardness of rubber grain B, wherein rubber
The rubber grain B of the surface of grain A with granularity greater than the rubber grain A is covered;The average particle size of rubber grain B compares rubber
The average particle size of particle A is at least three times greater;The average particle size of rubber grain B is 1-300 microns, the average particle size of rubber grain A
It is 0.01-30 microns;
Rubber grain A and rubber grain B are prepared from the following raw materials in parts by weight and are made:
The shape of rubber grain A is spherical shape, and the G/D value that rubber grain is obtained with raman spectroscopy measurement is between 2.
A method of rubber grain being prepared, its step are as follows:
(1) preparation of rubber grain A and rubber grain B
Mixer mixing is put into after going each raw material to mix by the weight proportion, melting temperature is 110 DEG C, the time is 12 points
Clock;It is refined after mixing in investment open mill, refining temperature is 64 DEG C, the time is 14 minutes, obtains refining mixture;
Refining mixture is put into extruder continuous sheeting, it is 110 DEG C that built-in temperature is squeezed out when extrusion;Then it puts into
Vulcanizing tank is vulcanized, and vulcanization time is 34 minutes, temperature is 140 DEG C, pressure is 10 kilograms;Go out tank after vulcanization, room temperature is cooling
It is granulated after 11 hours and is classified to obtain finished rubber particle A or rubber grain B;
(2) preparation of rubber grain
Varigrained rubber grain A and rubber grain B are put into dispersion liquid, both make to separate, then from containing rubber
Decentralized medium is removed in the dispersion liquid of glue particle A and rubber grain B, finally rubber grain B is covered on rubber grain A and is formed
Single rubber grain;
(3) preparation of rubber particle composite
By several rubber grains it is crosslinked after compounded rubber particulate composition formed by the impact of high velocity jet body,
The temperature range of the contact surface of high velocity jet body and the crosslinked rubber grain is 50 DEG C, high velocity jet body it is single
Water beam moment initial kinetic energy range is 8 × 103KJ, high velocity jet body are the two-phase flow using water as main medium, high speed
The Reynolds number for spraying fluid is 40-300 ten thousand.
Embodiment 2
The invention discloses a kind of rubber grains, are made of several rubber grains, the part of the surface of partial rubber particle
For the broken face of tension failure, partial rubber particle has at least one crystal region, and crystal region includes silicon carbide;Each rubber
Particle is made of rubber grain A and rubber grain B, and the hardness of rubber grain A is less than the hardness of rubber grain B, wherein rubber
The rubber grain B of the surface of grain A with granularity greater than the rubber grain A is covered;The average particle size of rubber grain B compares rubber
The average particle size of particle A is at least three times greater;The average particle size of rubber grain B is 1-300 microns, the average particle size of rubber grain A
It is 0.01-30 microns;
Rubber grain A and rubber grain B are prepared from the following raw materials in parts by weight and are made:
The shape of rubber grain A is spherical shape, and the G/D value that rubber grain is obtained with raman spectroscopy measurement is between 2.4.
A method of rubber grain being prepared, its step are as follows:
(1) preparation of rubber grain A and rubber grain B
Mixer mixing is put into after going each raw material to mix by the weight proportion, melting temperature is 115 DEG C, the time is 14 points
Clock;It is refined after mixing in investment open mill, refining temperature is 66 DEG C, the time is 16 minutes, obtains refining mixture;
Refining mixture is put into extruder continuous sheeting, it is 1120 DEG C that built-in temperature is squeezed out when extrusion;Then it throws
Enter vulcanizing tank to be vulcanized, vulcanization time is 36 minutes, temperature is 150 DEG C, pressure is 11 kilograms;Go out tank after vulcanization, room temperature is cold
But it is granulated after 12 hours and is classified to obtain finished rubber particle A or rubber grain B;
(2) preparation of rubber grain
Varigrained rubber grain A and rubber grain B are put into dispersion liquid, both make to separate, then from containing rubber
Decentralized medium is removed in the dispersion liquid of glue particle A and rubber grain B, finally rubber grain B is covered on rubber grain A and is formed
Single rubber grain;
(3) preparation of rubber particle composite
By several rubber grains it is crosslinked after compounded rubber particulate composition formed by the impact of high velocity jet body,
The temperature range of the contact surface of high velocity jet body and the crosslinked rubber grain is 60 DEG C, high velocity jet body it is single
Water beam moment initial kinetic energy range is 500 × 103KJ, high velocity jet body are the two-phase flows using water as main medium, wherein high
The Reynolds number of speed injection fluid is 40-300 ten thousand.
Embodiment 3
The invention discloses a kind of rubber grains, are made of several rubber grains, the part of the surface of partial rubber particle
For the broken face of tension failure, partial rubber particle has at least one crystal region, and crystal region includes silicon carbide;Each rubber
Particle is made of rubber grain A and rubber grain B, and the hardness of rubber grain A is less than the hardness of rubber grain B, wherein rubber
The rubber grain B of the surface of grain A with granularity greater than the rubber grain A is covered;The average particle size of rubber grain B compares rubber
The average particle size of particle A is at least three times greater;The average particle size of rubber grain B is 1-300 microns, the average particle size of rubber grain A
It is 0.01-30 microns;
Rubber grain A and rubber grain B are prepared from the following raw materials in parts by weight and are made:
The shape of rubber grain A is spherical shape, and the G/D value that rubber grain is obtained with raman spectroscopy measurement is between 2.8.
A method of rubber grain being prepared, its step are as follows:
(1) preparation of rubber grain A and rubber grain B
Mixer mixing is put into after going each raw material to mix by the weight proportion, melting temperature is 120 DEG C, the time is 16 points
Clock;It is refined after mixing in investment open mill, refining temperature is 68 DEG C, the time is 18 minutes, obtains refining mixture;
Refining mixture is put into extruder continuous sheeting, it is 130 DEG C that built-in temperature is squeezed out when extrusion;Then it puts into
Vulcanizing tank is vulcanized, and vulcanization time is 38 minutes, temperature is 160 DEG C, pressure is 12 kilograms;Go out tank after vulcanization, room temperature is cooling
It is granulated after 13 hours and is classified to obtain finished rubber particle A or rubber grain B;
(2) preparation of rubber grain
Varigrained rubber grain A and rubber grain B are put into dispersion liquid, both make to separate, then from containing rubber
Decentralized medium is removed in the dispersion liquid of glue particle A and rubber grain B, finally rubber grain B is covered on rubber grain A and is formed
Single rubber grain;
(3) preparation of rubber particle composite
By several rubber grains it is crosslinked after compounded rubber particulate composition formed by the impact of high velocity jet body,
The temperature range of the contact surface of high velocity jet body and the crosslinked rubber grain is 80 DEG C, high velocity jet body it is single
Water beam moment initial kinetic energy range is 1000 × 103KJ, high velocity jet body are the two-phase flows using water as main medium, wherein high
The Reynolds number of speed injection fluid is 40-300 ten thousand.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (5)
1. a kind of rubber grain, which is characterized in that be made of several rubber grains, the part of the surface of partial rubber particle is to draw
The broken face of fracture is stretched, partial rubber particle has at least one crystal region, and crystal region includes silicon carbide;Each rubber grain
It is made of rubber grain A and rubber grain B, the hardness of rubber grain A is less than the hardness of rubber grain B, wherein rubber grain A
The rubber grain B of the surface with granularity greater than the rubber grain A is covered;The average particle size of rubber grain B is than rubber grain A
Average particle size it is at least three times greater;The average particle size of rubber grain B is 1-300 microns, and the average particle size of rubber grain A is
0.01-30 microns;
Rubber grain A and rubber grain B are prepared from the following raw materials in parts by weight and are made:
。
2. a kind of rubber grain according to claim 1, which is characterized in that the rubber grain A and rubber grain B by
The raw material of following weight proportion is made:
。
3. a kind of rubber grain according to claim 1, which is characterized in that the shape of the rubber grain A is spherical shape.
4. a kind of rubber grain according to claim 1, which is characterized in that the rubber grain is obtained with raman spectroscopy measurement
The G/D value arrived is between 2-2.8.
5. a kind of method for preparing rubber grain, it is characterised in that: its step are as follows:
(1) preparation of rubber grain A and rubber grain B
Put into mixer mixing after going each raw material to mix by the weight proportion, melting temperature is 110-120 DEG C, time 12-
16 minutes;It is refined after mixing in investment open mill, refining temperature is 64-68 DEG C, the time is 14-18 minutes, must be refined mixed
Close object;
Refining mixture is put into extruder continuous sheeting, it is 110-130 DEG C that built-in temperature is squeezed out when extrusion;Then it puts into
Vulcanizing tank is vulcanized, and vulcanization time is 34-38 minutes, temperature is 140-160 DEG C, pressure is 10-12 kilograms;Go out after vulcanization
Tank is granulated after room temperature is 11-13 hours cooling and is classified to obtain finished rubber particle A or rubber grain B;
(2) preparation of rubber grain
Varigrained rubber grain A and rubber grain B are put into dispersion liquid, both make to separate, then from containing rubber
Decentralized medium is removed in the dispersion liquid of grain A and rubber grain B, finally rubber grain B is covered on rubber grain A and is formed individually
Rubber grain;
(3) preparation of rubber particle composite
By several rubber grains it is crosslinked after compounded rubber particulate composition formed by the impact of high velocity jet body, at a high speed
The temperature range for spraying the contact surface of fluid and the crosslinked rubber grain is 50-80 DEG C, high velocity jet body it is single
Water beam moment initial kinetic energy range is 8 × 103-1000×103KJ, high velocity jet body are the two-phase flows using water as main medium,
Wherein the Reynolds number of high velocity jet body is 40-300 ten thousand.
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CN112476830A (en) * | 2020-11-12 | 2021-03-12 | 祝鹏 | Rubber particle forming process and rubber particles |
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CN112476830A (en) * | 2020-11-12 | 2021-03-12 | 祝鹏 | Rubber particle forming process and rubber particles |
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Application publication date: 20190426 |