CN107383630A - A kind of heat resistance conveyor belt rubber cover and preparation method thereof - Google Patents
A kind of heat resistance conveyor belt rubber cover and preparation method thereof Download PDFInfo
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- CN107383630A CN107383630A CN201710568694.2A CN201710568694A CN107383630A CN 107383630 A CN107383630 A CN 107383630A CN 201710568694 A CN201710568694 A CN 201710568694A CN 107383630 A CN107383630 A CN 107383630A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/005—Methods for mixing in batches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
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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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Belt Conveyors (AREA)
Abstract
The invention provides each component of a kind of heat resistance conveyor belt rubber cover, including following parts by weight：8 12 parts of 100 parts of rubber system, 12 15 parts of activation system, 23 parts of preventing aging system, 10 15 parts of high-molecular polythene wax, 10 20 parts of tackifying resin, 50 80 parts of carbon black, 15 25 parts of paraffinic base rubber oil and vulcanizing system.The heat resistance conveyor belt rubber cover of the present invention, main gel is using Good Heat-resistance and the ethylene propylene diene rubber with extremely low ENB contents, coordinate resistance to elevated temperatures splendid paraffinic base rubber oil and tackifying resin simultaneously, and pass through peroxide vulcanizing system reasonable in design, the final heat resistance for improving conveyer belt coating rubber.
Description
Technical field
The present invention relates to conveyer belt technical field, more particularly to a kind of heat resistance conveyor belt rubber cover and preparation method thereof.
Background technology
Heat resistance conveyor belt is mainly used in the industries such as metallurgical, building, for conveying the high temperature such as sintering deposit, coke, clinker
Material, temperature of charge are no more than 800 DEG C, and zone face temperature uses under conditions of being no more than 220 DEG C.Existing heat resistance conveyor belt covering
Glue, some defects be present in formula design aspect, irrational formula causes peroxide cure to become negatively affected, final nothing
Method gives full play to performance formula, influences the heat resistance of conveyer belt.
The content of the invention
It is an object of the invention to provide a kind of heat resistance conveyor belt rubber cover with good heat resistance energy and preparation method thereof.
The invention provides each component of a kind of heat resistance conveyor belt rubber cover, including following parts by weight：Rubber system
100 parts, activation system 12-15 parts, preventing aging system 2-3 parts, high-molecular polythene wax 10-15 parts, tackifying resin 10-20 parts, charcoal
Black 50-80 parts, paraffinic base rubber oil 15-25 parts and vulcanizing system 8-12 parts.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement：
Alternatively, the rubber system is ethylene propylene diene rubber.
Alternatively, the activation system includes the component of following parts by weight：Zinc oxide 12-14 parts and stearic acid 0-1 parts.
Alternatively, the preventing aging system is antioxidant MB.
Alternatively, the tackifying resin is hydrogenated petroleum resin.
Alternatively, the vulcanizing system includes the component of following parts by weight：Peroxide 7-10 parts and assistant crosslinking agent 1-2
Part.
Present invention also offers a kind of method for preparing described heat resistance conveyor belt rubber cover, comprise the following steps：
Step S1, rubber system input banbury is plasticated；
Step S2, activation system, preventing aging system, high-molecular polythene wax and tackifying resin are added into banbury, is carried out
It is kneaded for the first time；
Step S3, carbon black is added into banbury, second is carried out and is kneaded；
Step S4, paraffinic base rubber oil is added into banbury, carries out third time mixing；
Step S5, after proposing hammer back mixing once, the 4th mixing is carried out, then discharge, obtains the first sizing material；
Step S6, by the first bin aging more than 8 hours, vulcanizing system is added into banbury, carries out the 5th mixing,
Then discharge, the second sizing material is obtained；
Step S7, cooling bottom sheet after the second sizing material is turned refining uniformly on a mill, so as to obtain the heat resistance conveyor belt
Rubber cover.
Alternatively, in the step S1, the time plasticated is 60-90s, and temperature is 80-100 DEG C；
In the step S2, the time that the first time is kneaded is 20-30s, and temperature is 80-100 DEG C；
In the step S3, described second time being kneaded is 30-40s, and temperature is 120-130 DEG C；
In the step S4, the time that the third time is kneaded is 30-40s, and temperature is 120-140 DEG C；
In the step S5, the time of the 4th mixing is 20-30s, and temperature is 150-160 DEG C；
In the step S6, the time of the 5th mixing is 80-100s, and temperature is 80-100 DEG C.
Beneficial effects of the present invention：
The heat resistance conveyor belt rubber cover of the present invention, main gel is using Good Heat-resistance and has extremely low ENB contents
Ethylene propylene diene rubber, while coordinate resistance to elevated temperatures splendid paraffinic base rubber oil and tackifying resin, and by reasonable in design
Peroxide vulcanizing system, the final heat resistance for improving conveyer belt coating rubber.
The preparation method of the heat resistance conveyor belt rubber cover of the present invention, it is good to can be prepared by heat resistance by high-temperature mixing process
Good heat resistance conveyor belt rubber cover, its hardness are less than 70shoreA, and tensile strength is more than 10Mpa, and elongation rate of tensile failure is more than
450%, abrasion are less than 200mm3, and heat resistance meets national standard GB/T20021-2005T4 requirements.
Brief description of the drawings
Fig. 1 is the process chart of the preparation method of the heat resistance conveyor belt rubber cover of the embodiment of the present invention.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
The embodiments of the invention provide each component of a kind of heat resistance conveyor belt rubber cover, including following parts by weight：It is raw
100 parts of colloid system, activation system 12-15 parts, preventing aging system 2-3 parts, high-molecular polythene wax 10-15 parts, tackifying resin 10-20
Part, carbon black 50-80 parts, paraffinic base rubber oil 15-25 parts and vulcanizing system 8-12 parts.
The heat resistance conveyor belt rubber cover of the present invention, main gel are using Good Heat-resistance and have extremely low ethylidene norborneol
The ethylene propylene diene rubber (EPDM) of alkene (ENB) content, while coordinate the splendid paraffinic base rubber oil of resistance to elevated temperatures
Sunpar2280 and tackifying resin, and by peroxide vulcanizing system reasonable in design, finally improve conveyer belt coating rubber
Heat resistance.
Wherein, the rubber system is ethylene propylene diene rubber.
EPDM is the terpolymer of ethene, propylene and non-conjugated diene hydrocarbon.Alkadienes has special structure, only
Have could being copolymerized for one of two keys, undersaturated double bond primarily as interlinkage at.Another undersaturated will not turn into polymerize
Owner's chain, only it can turn into avris chain.The principal polymeric chain of EPDM is fully saturated.This characteristic causes EPDM
Heat, light, especially oxygen, ozone can be resisted.EPDM is substantially non-polar, is had to polar solvent and chemicals
Resistance, water absorption rate is low, has good insulation characterisitic.In EPDM production process, by changing the quantity of three monomers, second
Allyl alkene ratio, molecular weight and its method for distribution and vulcanization can adjust its characteristic.Wherein, most widely used non-conjugated two
Alkene is ethylidene norbornene (ENB), and ENB has a short vulcanization, high tensile, the advantages that low permanent deformation.Ternary second
Extremely low ENB contents in third rubber, ensure that ethylene propylene diene rubber has good heat resistance.
Wherein, the activation system includes the component of following parts by weight：Zinc oxide 12-14 parts and stearic acid 0-1 parts.
Stearic acid, i.e. octadecanoid acid, molecular formula C18H36O2, are produced by grease hydrolysis, mainly for the production of stearate,
Every gram is dissolved in 21ml ethanol, 5ml benzene, 2ml chloroforms or 6ml carbon tetrachloride.
Wherein, the preventing aging system is antioxidant MB, as 2-mercaptobenzimidazole.
2-mercaptobenzimidazole sterling is white or light yellow fine-powdered crystallization, nontoxic, there is bitter taste, relative density 1.40-
1.44, fusing point is not less than 300 DEG C, dissolves in ether, acetoneand ethyl acetate, petroleum ether, dichloromethane is insoluble in, insoluble in four
Chlorination carbon, benzene and water.Antioxidant MB is main non-polluting age resistor in rubber industry, can reduce the change during vulcanization of rubber
Color, to preventing rubber air aging effective.
High-molecular polythene wax has excellent cold resistance, heat resistance, chemical resistance and wearability and obtains widely should
With.In normal production, this part wax can be applied directly in polyolefin processing as a kind of additive, and it can increase the light of product
Pool and processing characteristics.As lubricant, its chemical property is stable, electrical property is good.High-molecular polythene wax and ethylene-propylene-diene monomer
The intermiscibility of glue is fine.
Wherein, the tackifying resin is hydrogenated petroleum resin.
Hydrogenated petroleum resin has good viscosity, compatibility, heat endurance and photostability, and can improve adhesive
Adhesive property, be the essential tackifying component of many adhesive.
The strengthening action of carbon black is its surface-active and can be combined with rubber.Rubber can be particularly well adsorbed in charcoal
Black surface, has wet carbon black.Absorption is a kind of physical process, i.e., the attraction between carbon black and rubber molecule is more than rubber molecule
Between cohesive force, i.e. physical absorption.This adhesion is weaker, is also not enough to illustrate main strengthening action.Main reinforcement is made
With the inhomogeneities for being carbon black, the very big activation point of some activity, there is unpaired electronics, chemistry can be played with rubber and made
With.Rubber suction has several points on the surface of carbon black and carbon blacksurface plays the combination of chemistry, and this effect is referred to as chemistry
Absorption, chemisorbed are more much bigger than simple physical absorption.The characteristics of this chemisorbed is that strand is easier in charcoal
Moved on black surface, but be not easy to depart from carbon black.So, rubber just constitutes a kind of strong key that can be slid with carbon black.
This key generates second supplement effect.First supplement effect is the strand when rubber is acted on and deformed by external force
Sliding and substantial amounts of physisorption can absorb the impact of external force, play buffering to deformation is rubbed or lagged caused by external force
Effect；Second effect is to make stress distribution uniform.The result of the two effects increases rubber strength.Resistance tear, simultaneously
The elasticity (i.e. the motion of strand) of rubber will not be excessively damaged again.
Paraffinic base rubber oil can improve the characteristics such as the elasticity of rubber, pliability, workability, easily mixing property.The present invention
Used paraffinic base rubber oil is commercially available model sunpar2280 paraffinic base rubber oil.
Wherein, the vulcanizing system includes the component of following parts by weight：Peroxide 7-10 parts and assistant crosslinking agent 1-2
Part.
Peroxide cracks at a certain temperature produces alkoxy free group OR, and these have the free radical of very high-energy
OR abstract hydrogen atoms from rubber generate macromolecular radical, and the rubber macromolecule free radical of formation be combined with each other, that is, completed
Crosslinking between rubber molecular chain.
Assistant crosslinking agent can reduce the generation of side reaction, increase effective cross-linking efficiency.Assistant crosslinking agent is added in vulcanizing system
Not only strand cracking is inhibited, in addition, cross-linking plastic is also greatly improved, and the heat resistance of vulcanizate, drawing
Stretching tearing strength and wearability can be improved, and compression set can also be improved.
Fig. 1 is the process chart of the preparation method of the heat resistance conveyor belt rubber cover of the embodiment of the present invention.Referring to Fig. 1, sheet
Inventive embodiments additionally provide a kind of method for preparing described heat resistance conveyor belt rubber cover, comprise the following steps：
Step S1, rubber system input banbury is plasticated；The time plasticated is 60-90s, temperature 80-
100℃；
Step S2, activation system, preventing aging system, high-molecular polythene wax and tackifying resin are added into banbury, is carried out
It is kneaded for the first time；The time that the first time is kneaded is 20-30s, and temperature is 80-100 DEG C；
Step S3, carbon black is added into banbury, second is carried out and is kneaded；Second of the time being kneaded is 30-
40s, temperature are 120-130 DEG C；
Step S4, paraffinic base rubber oil is added into banbury, carries out third time mixing；The time that the third time is kneaded
For 30-40s, temperature is 120-140 DEG C；
Step S5, after proposing hammer back mixing once, the 4th mixing is carried out, then discharge, obtains the first sizing material；Described 4th time
The time of mixing is 20-30s, and temperature is 150-160 DEG C；
Step S6, by the first bin aging more than 8 hours, vulcanizing system is added into banbury, carries out the 5th mixing,
Then discharge, the second sizing material is obtained；The time of 5th mixing is 80-100s, and temperature is 80-100 DEG C.
Step S7, cooling bottom sheet after the second sizing material is turned refining uniformly on a mill, so as to obtain the heat resistance conveyor belt
Rubber cover.
The preparation method of the heat resistance conveyor belt rubber cover of the present invention, it is good to can be prepared by heat resistance by high-temperature mixing process
Good heat resistance conveyor belt rubber cover, its hardness are less than 70shoreA, and tensile strength is more than 10Mpa, and Breaking elongation is more than
450%, abrasion are less than 200mm3, and heat resistance meets national standard GB/T20021-2005T4 requirements.
The present invention will be further described by specific embodiment below.
Embodiment 1
1st, 100 parts of ethylene propylene diene rubbers are put into banbury to be plasticated；Time of plasticating is 60s, and temperature is 100 DEG C；
2nd, into banbury add 14 parts of zinc oxide, 1 part, 2 parts antioxidant MBs of stearic acid, 15 parts of high-molecular polythene waxes and
15 parts of hydrogenated petroleum resins, first time mixing is carried out, first time mixing time is 20s, and temperature is 100 DEG C；
3rd, 50 parts of carbon blacks are added into banbury, second is carried out and is kneaded；Second of mixing time is 40s, temperature 120
℃；
4th, 15 parts of paraffinic base rubber oils are added into banbury, carry out third time mixing；Third time mixing time is 30s,
Temperature is 140 DEG C；
5th, after proposing hammer back mixing once, the 4th mixing is carried out, then discharge, obtains the first sizing material；4th mixing time
For 20s, temperature is 160 DEG C；
6th, by the first bin aging more than 8 hours, 1 part of 7 parts of peroxide and assistant crosslinking agent are added into banbury, is carried out
5th mixing, then discharge, obtains the second sizing material, and the 5th mixing time is 80s, and temperature is 100 DEG C；
7th, cooling bottom sheet after the second sizing material is turned refining uniformly on a mill, so as to obtain heat resistance conveyor belt rubber cover.
Embodiment 2
1st, 100 parts of ethylene propylene diene rubbers are put into banbury to be plasticated；Time of plasticating is 80s, and temperature is 90 DEG C；
2nd, 13 parts of zinc oxide, 1 part, 2.5 parts antioxidant MBs of stearic acid, 10 parts of high-molecular polythene waxes are added into banbury
With 20 parts of hydrogenated petroleum resins, first time mixing is carried out, first time mixing time is 25s, and temperature is 90 DEG C；
3rd, 65 parts of carbon blacks are added into banbury, second is carried out and is kneaded；Second of mixing time is 35s, temperature 125
℃；
4th, 20 parts of paraffinic base rubber oils are added into banbury, carry out third time mixing；Third time mixing time is 35s,
Temperature is 130 DEG C；
5th, after proposing hammer back mixing once, the 4th mixing is carried out, then discharge, obtains the first sizing material；4th mixing time
For 25s, temperature is 155 DEG C；
6th, by the first bin aging more than 8 hours, 2 parts of 8 parts of peroxide and assistant crosslinking agent are added into banbury, is carried out
5th mixing, then discharge, obtains the second sizing material, and the 5th mixing time is 90s, and temperature is 90 DEG C；
7th, cooling bottom sheet after the second sizing material is turned refining uniformly on a mill, so as to obtain heat resistance conveyor belt rubber cover.
Embodiment 3
1st, 100 parts of ethylene propylene diene rubbers are put into banbury to be plasticated；Time of plasticating is 90s, and temperature is 80 DEG C；
2nd, into banbury add 12 parts of zinc oxide, 0 part, 3 parts antioxidant MBs of stearic acid, 12 parts of high-molecular polythene waxes and
10 parts of hydrogenated petroleum resins, first time mixing is carried out, first time mixing time is 30s, and temperature is 80 DEG C；
3rd, 80 parts of carbon blacks are added into banbury, second is carried out and is kneaded；Second of mixing time is 30s, temperature 130
℃；
4th, 25 parts of paraffinic base rubber oils are added into banbury, carry out third time mixing；Third time mixing time is 40s,
Temperature is 120 DEG C；
5th, after proposing hammer back mixing once, the 4th mixing is carried out, then discharge, obtains the first sizing material；4th mixing time
For 30s, temperature is 150 DEG C；
6th, by the first bin aging more than 8 hours, 2 parts of 10 parts of peroxide and assistant crosslinking agent is added into banbury, is entered
The 5th mixing of row, then discharge, obtains the second sizing material, and the 5th mixing time is 100s, and temperature is 80 DEG C；
7th, cooling bottom sheet after the second sizing material is turned refining uniformly on a mill, so as to obtain heat resistance conveyor belt rubber cover.
Table 1 is the performance indications for the heat resistance conveyor belt rubber cover that embodiment 2 is prepared.
Table 1
| Pilot project | Unit | Technical requirements | Result of the test |
| Hardness | shoreA | 70±3 | 70 |
| Stretch breaking strength | Mpa | ≥10 | 12.2 |
| Elongation rate of tensile failure | % | ≥450 | 540 |
| Shao moors your abrasion loss | mm3 | ≤200 | 165 |
From the result in table 1, the hardness of the heat resistance conveyor belt rubber cover prepared by according to embodiments of the present invention 2,
Stretch breaking strength, elongation rate of tensile failure and Shao moor your abrasion loss and meet technical requirements.
Table 2 is heat resistance conveyor belt rubber cover that embodiment 2 is prepared according to GB/T20021-2005T4 level heat resistance conveyor belts
The test result of lid glue standard.
Table 2
| Pilot project | Unit | Technical requirements | Result of the test |
| Firmness change | / | ±20 | +12 |
| Stretch breaking strength rate of change | % | ≤-40 | -22 |
| Elongation change rate | % | ≤-55 | -36 |
From the result in table 2, the hardness of the heat resistance conveyor belt rubber cover prepared by according to embodiments of the present invention 2 becomes
Change, stretch breaking strength rate of change and elongation change rate meet the mark of GB/T 20021-2005 T4 level heat resistance conveyor belt lid glue
It is accurate.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (8)
- A kind of 1. heat resistance conveyor belt rubber cover, it is characterised in that each component including following parts by weight：Rubber system 100 Part, activation system 12-15 parts, preventing aging system 2-3 parts, high-molecular polythene wax 10-15 parts, tackifying resin 10-20 parts, carbon black 50-80 parts, paraffinic base rubber oil 15-25 parts and vulcanizing system 8-12 parts.
- 2. heat resistance conveyor belt rubber cover according to claim 1, it is characterised in that the rubber system is ethylene-propylene-diene monomer Glue.
- 3. heat resistance conveyor belt rubber cover according to claim 1, it is characterised in that the activation system includes following weight The component of number：Zinc oxide 12-14 parts and stearic acid 0-1 parts.
- 4. heat resistance conveyor belt rubber cover according to claim 1, it is characterised in that the preventing aging system is antioxidant MB.
- 5. heat resistance conveyor belt rubber cover according to claim 1, it is characterised in that the tackifying resin is hydrotreated petroleum tree Fat.
- 6. the heat resistance conveyor belt rubber cover according to any one of claim 1-5, it is characterised in that the vulcanizing system is pressed Vulcanizing system includes the component of following parts by weight：Peroxide 7-10 parts and assistant crosslinking agent 1-2 parts.
- A kind of 7. method for preparing the heat resistance conveyor belt rubber cover any one of claim 1-6, it is characterised in that including Following steps：Step S1, rubber system input banbury is plasticated；Step S2, activation system, preventing aging system, high-molecular polythene wax and tackifying resin are added into banbury, carries out first Secondary mixing；Step S3, carbon black is added into banbury, second is carried out and is kneaded；Step S4, paraffinic base rubber oil is added into banbury, carries out third time mixing；Step S5, after proposing hammer back mixing once, the 4th mixing is carried out, then discharge, obtains the first sizing material；Step S6, by the first bin aging more than 8 hours, vulcanizing system is added into banbury, carries out the 5th mixing, then Discharge, obtain the second sizing material；Step S7, cooling bottom sheet after the second sizing material is turned refining uniformly on a mill, so as to obtain the heat resistance conveyor belt covering Glue.
- 8. the preparation method of heat resistance conveyor belt rubber cover according to claim 7, it is characterised in that in the step S1, The time plasticated is 60-90s, and temperature is 80-100 DEG C；In the step S2, the time that the first time is kneaded is 20-30s, and temperature is 80-100 DEG C；In the step S3, described second time being kneaded is 30-40s, and temperature is 120-130 DEG C；In the step S4, the time that the third time is kneaded is 30-40s, and temperature is 120-140 DEG C；In the step S5, the time of the 4th mixing is 20-30s, and temperature is 150-160 DEG C；In the step S6, the time of the 5th mixing is 80-100s, and temperature is 80-100 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114539681A (en) * | 2022-03-01 | 2022-05-27 | 青岛科技大学 | High-wear-resistance ethylene propylene diene monomer covering rubber for high-temperature-resistant conveying belt and preparation method thereof |
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| CN114539681A (en) * | 2022-03-01 | 2022-05-27 | 青岛科技大学 | High-wear-resistance ethylene propylene diene monomer covering rubber for high-temperature-resistant conveying belt and preparation method thereof |
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