CN112080077A - High-strength heat-resistant conveying belt and preparation process thereof - Google Patents
High-strength heat-resistant conveying belt and preparation process thereof Download PDFInfo
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- CN112080077A CN112080077A CN202010656228.1A CN202010656228A CN112080077A CN 112080077 A CN112080077 A CN 112080077A CN 202010656228 A CN202010656228 A CN 202010656228A CN 112080077 A CN112080077 A CN 112080077A
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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—Ethylene-propylene or ethylene-propylene-diene copolymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/042—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/12—Layered products comprising a layer of natural or synthetic rubber comprising natural rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
- B65G15/32—Belts or like endless load-carriers made of rubber or plastics
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
- B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2433/00—Closed loop articles
- B32B2433/02—Conveyor belts
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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
- 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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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Belt Conveyors (AREA)
Abstract
The invention discloses a high-strength heat-resistant conveying belt and a preparation process thereof, wherein the high-strength heat-resistant conveying belt comprises the following raw materials in parts by weight: 55-75 parts of softening plasticizer, 150-200 parts of ethylene propylene diene monomer, 6-15 parts of antioxidant RD, 15-21 parts of vulcanizing agent, 21-30 parts of activator, 45-60 parts of white carbon black, 6-10 parts of rubber adhesive AB, 90-120 parts of natural rubber, 30-40 parts of styrene butadiene rubber, 9-15 parts of accelerator M, 20-30 parts of light calcium carbonate and 15-20 parts of pretreated polyvinyl short fiber are respectively manufactured into a high temperature resistant rubber layer, a transition rubber layer and a joint rubber layer, the high temperature resistant rubber layer, the transition rubber layer and the joint rubber layer are covered on the impregnated polyester cotton canvas from top to bottom, the thickness of each layer is not more than 7mm, and the lamination is carried out under the environment of 150-200 ℃ and 1mpa to obtain the heat resistant high-strength conveyer belt. The invention can effectively solve the technical problems of insufficient strength and low heat resistance of the existing conveying belt, and can better laminate rubber materials by a high-temperature-resistant adhesive layer, a transition adhesive layer and a laminating adhesive layer, thereby improving the overall strength.
Description
Technical Field
The invention relates to the technical field of conveying belts, in particular to a high-strength heat-resistant conveying belt and a preparation process thereof.
Background
The conveyer belt is the important component of transport structure, and present conveyer belt is used for carrying various materials, all trades have all uses, because the conveyer belt need carry the material of high temperature occasionally in the in-process of carrying, consequently, has higher to the heat resistance requirement of conveyer belt, and metallurgical class material can cause the conveyer belt wearing and tearing scheduling problem, causes conveyer belt intensity to descend, has seriously influenced the application of conveyer belt.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-strength heat-resistant conveying belt and a preparation process thereof, and solves the technical problems of insufficient strength and low heat resistance of the conventional conveying belt.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a high-strength heat-resistant conveying belt, which comprises the following raw materials in parts by weight: 55-75 parts of softening plasticizer, 150-200 parts of ethylene propylene diene monomer, 6-15 parts of antioxidant RD, 15-21 parts of vulcanizing agent, 21-30 parts of activating agent, 45-60 parts of white carbon black, 6-10 parts of rubber adhesive AB, 90-120 parts of natural rubber, 30-40 parts of styrene butadiene rubber, 9-15 parts of accelerator M, 20-30 parts of light calcium carbonate and 15-20 parts of pretreated polyvinyl short fiber.
In a preferred embodiment of the present invention, the softening plasticizer is a mixture of rx-80 resin, coumarone resin and paraffin oil at a weight ratio of 1:5: 5.
As a preferable technical scheme of the invention, the vulcanizing agent is dicumyl peroxide.
As a preferable technical scheme of the invention, the active agent is a mixture of zinc oxide and stearic acid according to the weight ratio of 1: 2.
The invention relates to a preparation process of a high-strength heat-resistant conveying belt, which comprises the following steps:
a: adding 100-120 parts of ethylene propylene diene monomer, 5-7 parts of vulcanizing agent, 7-10 parts of activating agent, 15-20 parts of softening plasticizer, 3-5 parts of anti-aging agent RD, 3-5 parts of accelerator M, 15-20 parts of white carbon black and 15-20 parts of pretreated polyester staple fiber into a double-screw plasticizing machine for vulcanizing to form a high-temperature-resistant rubber layer;
b: adding 50-80 parts of ethylene propylene diene monomer, 30-40 parts of natural rubber, 5-7 parts of vulcanizing agent, 7-10 parts of activating agent, 3-5 parts of anti-aging agent RD, 3-5 parts of accelerator M, 20-30 parts of softening plasticizer, 15-20 parts of white carbon black and 3-5 parts of rubber adhesive AB into a double-screw plasticizing machine for vulcanizing to form a transition adhesive layer;
c: adding 60-80 parts of natural rubber, 30-40 parts of styrene butadiene rubber, 20-30 parts of light calcium carbonate, 7-10 parts of an active agent, 3-5 parts of an anti-aging agent RD, 3-5 parts of an accelerator M, 20-25 parts of a softening plasticizer, 15-20 parts of white carbon black, 3-5 parts of a rubber adhesive AB and 5-7 parts of a vulcanizing agent into a double-screw plasticizing machine for vulcanizing to form a bonding adhesive layer;
d: covering the high-temperature-resistant glue layer, the transition glue layer and the adhesive layer on the gum-dipped polyester cotton canvas from top to bottom, wherein the thickness of each layer is not more than 7mm, and laminating under the environment of 200 ℃ at 150 plus materials and 1mpa to obtain the heat-resistant high-strength conveyer belt.
Compared with the prior art, the invention has the following beneficial effects:
the invention can effectively solve the technical problems of insufficient strength and low heat resistance of the existing conveying belt, rubber materials can be better jointed by the high-temperature-resistant rubber layer, the transition rubber layer and the jointing rubber layer, the integral strength is improved, the high-temperature-resistant performance of the conveying belt can be greatly improved by the high-temperature-resistant rubber layer, and the service life of the conveying belt is longer.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is in no way intended to limit the invention.
In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted.
Example 1
The invention provides a high-strength heat-resistant conveying belt which comprises the following raw materials in parts by weight: 55 parts of softening plasticizer, 200 parts of ethylene propylene diene monomer, 6 parts of antioxidant RD, 15 parts of vulcanizing agent, 21 parts of activating agent, 45 parts of white carbon black, 6 parts of rubber adhesive AB, 120 parts of natural rubber, 40 parts of butadiene styrene rubber, 9 parts of accelerator M, 20 parts of light calcium carbonate and 15 parts of pretreated polyvinyl short fiber.
The softening plasticizer is a mixture of rx-80 resin, coumarone resin and paraffin oil according to a weight ratio of 1:5: 5.
The vulcanizing agent is dicumyl peroxide.
The activator adopts a mixture of zinc oxide and stearic acid according to a weight ratio of 1: 2.
The preparation process of the high-strength heat-resistant conveying belt comprises the following steps:
a: adding 120 parts of ethylene propylene diene monomer, 5 parts of vulcanizing agent, 7 parts of activating agent, 15 parts of softening plasticizer, 3 parts of anti-aging agent RD, 3 parts of accelerator M, 15 parts of white carbon black and 15 parts of pretreated polyvinyl acetate short fiber into a double-screw plasticizing machine for vulcanizing to form a high-temperature-resistant rubber layer;
b: adding 80 parts of ethylene propylene diene monomer, 40 parts of natural rubber, 5 parts of vulcanizing agent, 7 parts of activating agent, 3 parts of anti-aging agent RD, 3 parts of accelerator M, 20 parts of softening plasticizer, 15 parts of white carbon black and 3 parts of rubber adhesive AB into a double-screw plasticizing machine for vulcanizing to form a transition rubber layer;
c: adding 80 parts of natural rubber, 40 parts of butadiene styrene rubber, 20 parts of light calcium carbonate, 7 parts of an active agent, 3 parts of an anti-aging agent RD, 3 parts of an accelerator M, 20 parts of a softening plasticizer, 15 parts of white carbon black, 3 parts of a rubber adhesive AB and 5 parts of a vulcanizing agent into a double-screw plasticizing machine for vulcanizing to form a bonding adhesive layer;
d: covering the high-temperature-resistant glue layer, the transition glue layer and the adhesive layer on the gum-dipped polyester cotton canvas from top to bottom, wherein the thickness of each layer is not more than 7mm, and laminating under the environment of 200 ℃ at 150 plus materials and 1mpa to obtain the heat-resistant high-strength conveyer belt.
Example 2
The invention provides a high-strength heat-resistant conveying belt which comprises the following raw materials in parts by weight: 75 parts of softening plasticizer, 150 parts of ethylene propylene diene monomer, 15 parts of antioxidant RD, 21 parts of vulcanizing agent, 30 parts of activating agent, 60 parts of white carbon black, 10 parts of rubber adhesive AB, 90 parts of natural rubber, 30 parts of butadiene styrene rubber, 15 parts of accelerator M, 30 parts of light calcium carbonate and 20 parts of pretreated polyvinyl short fiber.
The softening plasticizer is a mixture of rx-80 resin, coumarone resin and paraffin oil according to a weight ratio of 1:5: 5.
The vulcanizing agent is dicumyl peroxide.
The activator adopts a mixture of zinc oxide and stearic acid according to a weight ratio of 1: 2.
The preparation process of the high-strength heat-resistant conveying belt comprises the following steps:
a: 100 parts of ethylene propylene diene monomer, 7 parts of vulcanizing agent, 10 parts of activating agent, 20 parts of softening plasticizer, 5 parts of anti-aging agent RD, 5 parts of accelerator M, 20 parts of white carbon black and 20 parts of pretreated polyvinyl acetate short fiber are added into a double-screw plasticizing machine for vulcanization to form a high-temperature resistant rubber layer;
b: adding 50 parts of ethylene propylene diene monomer, 30 parts of natural rubber, 7 parts of vulcanizing agent, 10 parts of activating agent, 5 parts of anti-aging agent RD, 5 parts of accelerator M, 30 parts of softening plasticizer, 20 parts of white carbon black and 5 parts of rubber adhesive AB into a double-screw plasticizing machine for vulcanizing to form a transition rubber layer;
c: adding 60 parts of natural rubber, 30 parts of butadiene styrene rubber, 30 parts of light calcium carbonate, 10 parts of an active agent, 5 parts of an anti-aging agent RD, 5 parts of an accelerator M, 25 parts of a softening plasticizer, 20 parts of white carbon black, 5 parts of a rubber adhesive AB and 7 parts of a vulcanizing agent into a double-screw plasticizing machine for vulcanizing to form a bonding adhesive layer;
d: covering the high-temperature-resistant glue layer, the transition glue layer and the adhesive layer on the gum-dipped polyester cotton canvas from top to bottom, wherein the thickness of each layer is not more than 7mm, and laminating under the environment of 200 ℃ at 150 plus materials and 1mpa to obtain the heat-resistant high-strength conveyer belt.
Example 3
The invention provides a high-strength heat-resistant conveying belt which comprises the following raw materials in parts by weight: 55-75 parts of softening plasticizer, 150-200 parts of ethylene propylene diene monomer, 6-15 parts of antioxidant RD, 15-21 parts of vulcanizing agent, 21-30 parts of activating agent, 45-60 parts of white carbon black, 6-10 parts of rubber adhesive AB, 90-120 parts of natural rubber, 30-40 parts of styrene butadiene rubber, 9-15 parts of accelerator M, 20-30 parts of light calcium carbonate and 15-20 parts of pretreated polyvinyl short fiber.
The softening plasticizer is a mixture of rx-80 resin, coumarone resin and paraffin oil according to a weight ratio of 1:5: 5.
The vulcanizing agent is dicumyl peroxide.
The activator adopts a mixture of zinc oxide and stearic acid according to a weight ratio of 1: 2.
The preparation process of the high-strength heat-resistant conveying belt comprises the following steps:
a: adding 120 parts of ethylene propylene diene monomer, 5 parts of vulcanizing agent, 7 parts of activating agent, 15 parts of softening plasticizer, 3 parts of anti-aging agent RD, 3 parts of accelerator M, 15 parts of white carbon black and 15 parts of pretreated polyvinyl acetate short fiber into a double-screw plasticizing machine for vulcanizing to form a high-temperature-resistant rubber layer;
b: adding 50 parts of ethylene propylene diene monomer, 30 parts of natural rubber, 7 parts of vulcanizing agent, 10 parts of activating agent, 5 parts of anti-aging agent RD, 5 parts of accelerator M, 30 parts of softening plasticizer, 20 parts of white carbon black and 5 parts of rubber adhesive AB into a double-screw plasticizing machine for vulcanizing to form a transition rubber layer;
c: adding 80 parts of natural rubber, 40 parts of butadiene styrene rubber, 30 parts of light calcium carbonate, 10 parts of an active agent, 5 parts of an anti-aging agent RD, 5 parts of an accelerator M, 220 parts of a softening plasticizer, 15 parts of white carbon black, 3 parts of a rubber adhesive AB and 5 parts of a vulcanizing agent into a double-screw plasticizing machine for vulcanizing to form a laminating adhesive layer;
d: covering the high-temperature-resistant glue layer, the transition glue layer and the adhesive layer on the gum-dipped polyester cotton canvas from top to bottom, wherein the thickness of each layer is not more than 7mm, and laminating under the environment of 200 ℃ at 150 plus materials and 1mpa to obtain the heat-resistant high-strength conveyer belt.
The experimental result data and the conventionally required data of the conveyor belts manufactured in the above-described examples 1, 2 and 3 are shown in the following table 1,
TABLE 1 comparison of parameters of conveyer belts prepared in the examples of the present application with conventional conveyer belts
| Toughness of | Elongation at Break | Hardness of | Degree of wear resistance | Scorch time | |
| Example 1 | 15.0Mpa | 630 | 77A | 0.96 | 57 |
| Example 2 | 13.3Mpa | 500 | 76A | 0.91 | 48 |
| Example 3 | 14.4Mpa | 580 | 82A | 0.95 | 54 |
| Existing materials | 12.2Mpa | 400 | 71A | 0.87 | 34 |
The table shows that the performances of the embodiment 1, the embodiment 2 and the embodiment 3 are superior to those of the existing material, and the conveying belt prepared in the application can effectively solve the technical problems of insufficient strength and low heat resistance of the existing conveying belt.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A high-strength heat-resistant conveying belt is characterized by comprising the following raw materials in parts by weight: 55-75 parts of softening plasticizer, 150-200 parts of ethylene propylene diene monomer, 6-15 parts of antioxidant RD, 15-21 parts of vulcanizing agent, 21-30 parts of activating agent, 45-60 parts of white carbon black, 6-10 parts of rubber adhesive AB, 90-120 parts of natural rubber, 30-40 parts of styrene butadiene rubber, 9-15 parts of accelerator M, 20-30 parts of light calcium carbonate and 15-20 parts of pretreated polyvinyl short fiber.
2. The high-strength heat-resistant conveying belt and the preparation process thereof according to claim 1, wherein the softening plasticizer is a mixture of rx-80 resin, coumarone resin and paraffin oil in a weight ratio of 1:5: 5.
3. The high-strength heat-resistant conveying belt and the preparation process thereof according to claim 1, wherein the vulcanizing agent is dicumyl peroxide.
4. The high-strength heat-resistant conveying belt and the preparation process thereof as claimed in claim 1, wherein the activator is a mixture of zinc oxide and stearic acid in a weight ratio of 1: 2.
5. A preparation process of a high-strength heat-resistant conveying belt is characterized by comprising the following steps:
a: adding 100-120 parts of ethylene propylene diene monomer, 5-7 parts of vulcanizing agent, 7-10 parts of activating agent, 15-20 parts of softening plasticizer, 3-5 parts of anti-aging agent RD, 3-5 parts of accelerator M, 15-20 parts of white carbon black and 15-20 parts of pretreated polyester staple fiber into a double-screw plasticizing machine for vulcanizing to form a high-temperature-resistant rubber layer;
b: adding 50-80 parts of ethylene propylene diene monomer, 30-40 parts of natural rubber, 5-7 parts of vulcanizing agent, 7-10 parts of activating agent, 3-5 parts of anti-aging agent RD, 3-5 parts of accelerator M, 20-30 parts of softening plasticizer, 15-20 parts of white carbon black and 3-5 parts of rubber adhesive AB into a double-screw plasticizing machine for vulcanizing to form a transition adhesive layer;
c: adding 60-80 parts of natural rubber, 30-40 parts of styrene butadiene rubber, 20-30 parts of light calcium carbonate, 7-10 parts of an active agent, 3-5 parts of an anti-aging agent RD, 3-5 parts of an accelerator M, 20-25 parts of a softening plasticizer, 15-20 parts of white carbon black, 3-5 parts of a rubber adhesive AB and 5-7 parts of a vulcanizing agent into a double-screw plasticizing machine for vulcanizing to form a bonding adhesive layer;
d: covering the high-temperature-resistant glue layer, the transition glue layer and the adhesive layer on the gum-dipped polyester cotton canvas from top to bottom, wherein the thickness of each layer is not more than 7mm, and laminating under the environment of 200 ℃ at 150 plus materials and 1mpa to obtain the heat-resistant high-strength conveyer belt.
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| CN103935686A (en) * | 2013-08-05 | 2014-07-23 | 安徽欧耐橡塑工业有限公司 | Light heat-resisting conveyor belt |
| CN204727055U (en) * | 2015-06-15 | 2015-10-28 | 保定三源橡胶有限公司 | High-heat-resistant conveyer belt |
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