CN111791543A - High-heat-conductivity rubber hose and manufacturing method thereof - Google Patents

High-heat-conductivity rubber hose and manufacturing method thereof Download PDF

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Publication number
CN111791543A
CN111791543A CN202010572164.7A CN202010572164A CN111791543A CN 111791543 A CN111791543 A CN 111791543A CN 202010572164 A CN202010572164 A CN 202010572164A CN 111791543 A CN111791543 A CN 111791543A
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China
Prior art keywords
rubber hose
inner liner
layer
rubber
graphene
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Pending
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CN202010572164.7A
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Chinese (zh)
Inventor
王金马
黄裕中
张小红
卞冬明
陈军
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Zyfire Hose Corp
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Zyfire Hose Corp
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Priority to CN202010572164.7A priority Critical patent/CN111791543A/en
Publication of CN111791543A publication Critical patent/CN111791543A/en
Pending legal-status Critical Current

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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
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • 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
    • 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
    • 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
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0036—Heat treatment
    • 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
    • B32B5/024—Woven fabric
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/02—Hoses, i.e. flexible pipes made of fibres or threads, e.g. of textile which may or may not be impregnated, or provided with an impermeable layer, e.g. fire-hoses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/04—Protection of pipes or objects of similar shape against external or internal damage or wear against fire or other external sources of extreme heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/10—Coatings characterised by the materials used by rubber or plastics
    • F16L58/1009—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/10—Coatings characterised by the materials used by rubber or plastics
    • F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/0076—Curing, vulcanising, cross-linking
    • 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
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • 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
    • B32B2307/302—Conductive
    • 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
    • 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
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • 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
    • B32B2597/00—Tubular articles, e.g. hoses, pipes
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/18—Applications used for pipes
    • 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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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a high-heat-conductivity rubber hose and a manufacturing method thereof, wherein the high-heat-conductivity rubber hose comprises an inner liner layer, a reinforcing layer and a protective layer, the reinforcing layer is arranged in the middle and is connected with the inner liner layer and the protective layer, the inner liner layer is arranged inside the inner liner layer, the inner liner layer and the protective layer are mainly prepared by mixing EPDM rubber, liquid EPDM, graphene, a vulcanizing agent DCP and a cross-linking agent TAI, and the manufacturing of the rubber hose is completed through premixing, mixing, weaving, co-extrusion, vulcanization, cooling, rolling. The invention has the beneficial effects that: the EPDM rubber is used as a base material, the graphene is filled to form the inner layer and the outer layer of the rubber hose, the high-heat-conductivity carbon fiber is used as a reinforcing framework, and the vulcanizing agent DCP and the cross-linking agent TAIC are added, so that the heat dissipation performance of the rubber hose can be improved, the temperature of the rubber hose is reduced, the aging speed is reduced, the heat resistance, the aging resistance and the corrosion resistance are improved, the service life of the rubber hose is prolonged, and the use cost is reduced.

Description

High-heat-conductivity rubber hose and manufacturing method thereof
Technical Field
The invention relates to the technical field of rubber hoses, in particular to a high-heat-conductivity rubber hose and a manufacturing method thereof.
Background
At present, the pipeline for conveying the heat medium is generally a metal pipeline, and the inside and the outside of the metal pipeline are coated with a corrosion-resistant protective layer or heat-resistant polyethylene and crosslinked polyethylene. However, when the metal pipeline is used for a long time, the anticorrosive layer is thin, the anticorrosive layer can slowly lose efficacy under the influence of air conditions, the metal pipeline inside is exposed, oxidation and corrosion can occur, and the service life of the metal pipeline is shortened. The common rubber pipeline or plastic pipeline has poor heat conducting performance and weak heat dissipation performance, so that the material can age and decay under a long-term heat accumulation condition, and the service life of the common rubber pipeline or plastic pipeline is shorter in the application of conveying heat medium. However, in some special environments and under the condition that the pipeline of the conveying pipeline is inconvenient to replace, for example, the pipeline of a nuclear reactor is replaced, a general metal pipeline, a general rubber pipeline or a plastic pipeline cannot meet the condition, but the longer the service life of the conveying pipeline is, the better the service life of the conveying pipeline is, the replacement times can be reduced, the safety performance is improved, and the cost is reduced.
Disclosure of Invention
The present invention is directed to a high thermal conductivity rubber hose and a method for manufacturing the same, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high heat conduction rubber hose, includes inner liner, enhancement layer, inoxidizing coating, the enhancement layer is placed in the middle and is connected inner liner and inoxidizing coating, the inner liner sets up inside, inner liner and inoxidizing coating are mainly made by the mixing of raw and other materials of following parts by mass:
Figure BDA0002549776870000011
Figure BDA0002549776870000021
preferably, the filling mass percentage of the graphene in the rubber hose is 30-35%.
Further preferably, the thickness of the inner liner layer and the thickness of the protective layer are 0.9-2 mm.
Preferably, the reinforcing layer is a framework layer made of high-thermal-conductivity carbon fibers.
Preferably, the reinforcing layer is a cylindrical fabric layer woven by a warp and weft weaving method.
More preferably, the vulcanizing agent DCP is added to the rubber hose in a mass percentage of 2.5-3.5%.
The invention also provides a manufacturing method of the high-heat-conductivity rubber hose, which comprises the following steps:
1) preparing raw materials: EPDM rubber, liquid EPDM, graphene, a vulcanizing agent DCP and a cross-linking agent TAIC;
2) premixing graphene: pouring graphene and liquid EPDM into a stirring kettle, stirring for 10-30 minutes, and then cooling;
3) mixing EPDM rubber: adding the graphene premix obtained in the step 2) and EPDM rubber into an internal mixer, discharging when the temperature reaches 130-160 ℃, filtering, weighing, adding a vulcanizing agent DCP according to the specific gravity, and discharging and standing;
4) and (3) weaving of the enhancement layer: weaving carbon fibers into a cylindrical shape by using a circular weaving machine according to a preset working pressure;
5) co-extrusion: penetrating the belt blank formed by the reinforcing layer on a core rod of a co-extrusion die, connecting the co-extrusion die with an extruder, starting the extruder, and extruding the mixed material obtained in the step 3);
6) and (3) vulcanization: sealing the semi-finished product belt head extruded in the step 5) by using a clamp, injecting 0.1-0.3 MPa of air, and then drawing the semi-finished product belt head through an oven of 30-70 m, wherein the temperature of the oven is 150-190 ℃;
7) and (3) cooling: cooling the vulcanized rubber hose;
8) winding: rolling up the manufactured rubber hose;
9) and (4) checking: and detecting the temperature, the pressure, the toughness, the sealing property, the thickness, the heat conductivity, the heat dissipation, the corrosiveness and the size of the rubber hose to obtain a finished product of the rubber hose.
More preferably, the vulcanizing agent DCP and the cross-linking agent TAIC are used together in the step 6), and the weight ratio of the cross-linking agent TAIC to the vulcanizing agent DCP is 2-4: 1.
Advantageous effects
According to the high-heat-conductivity rubber hose, the EPDM rubber is used as the base material, the graphene is filled to form the inner layer and the outer layer of the rubber hose, the high-heat-conductivity carbon fiber is used as the reinforcing framework, and the vulcanizing agent DCP and the cross-linking agent TAIC are added, so that the heat dissipation performance of the rubber hose can be improved, the temperature of the rubber hose can be reduced, the aging speed can be reduced, the heat resistance, the aging resistance and the corrosion resistance can be improved, the service life of the rubber hose can be prolonged, and the use cost can be reduced.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example one
The utility model provides a high heat conduction rubber hose, includes inner liner, enhancement layer, inoxidizing coating, the enhancement layer is placed in the middle and is connected inner liner and inoxidizing coating, the inner liner sets up inside, inner liner and inoxidizing coating are mainly made by the mixing of raw and other materials of following parts by mass:
Figure BDA0002549776870000031
the embodiment provides a method for manufacturing a high-thermal-conductivity rubber hose, which comprises the following steps:
1) preparing raw materials: preparing EPDM rubber, liquid EPDM, graphene, a vulcanizing agent DCP and a crosslinking agent TAIC according to the mass parts in the embodiment;
2) premixing graphene: pouring the graphene and the liquid EPDM into a stirring kettle, stirring for 30 minutes, and then cooling;
3) mixing EPDM rubber: adding the graphene premix obtained in the step 2) and EPDM rubber into an internal mixer, discharging when the temperature reaches 160 ℃, filtering and weighing, adding 2 parts of vulcanizing agent DCP, and discharging and standing;
4) and (3) weaving of the enhancement layer: weaving carbon fibers into a cylindrical shape by using a circular weaving machine according to a preset working pressure;
5) co-extrusion: penetrating a belt blank formed by weaving the enhancement layer on a core rod of a co-extrusion die, connecting the co-extrusion die with an extruder, starting the extruder, and extruding the mixed material obtained in the step 3);
6) and (3) vulcanization: sealing the belt head of the semi-finished product extruded in the step 5) by using a clamp, injecting 0.3MPa of air, and then drawing the belt head to pass through a 70m oven, wherein the temperature of the oven is 190 ℃, 3 parts of vulcanizing agent DCP and 3 parts of cross-linking agent TAIC are arranged in the oven;
7) and (3) cooling: cooling the vulcanized rubber hose;
8) winding: rolling up the manufactured rubber hose;
9) and (4) checking: and detecting the temperature, the pressure, the toughness, the sealing property, the thickness, the heat conductivity, the heat dissipation, the corrosiveness and the size of the rubber hose to obtain a finished product of the rubber hose.
Example two
The utility model provides a high heat conduction rubber hose, includes inner liner, enhancement layer, inoxidizing coating, the enhancement layer is placed in the middle and is connected inner liner and inoxidizing coating, the inner liner sets up inside, inner liner and inoxidizing coating are mainly made by the mixing of raw and other materials of following parts by mass:
Figure BDA0002549776870000041
the embodiment provides a method for manufacturing a high-thermal-conductivity rubber hose, which comprises the following steps:
1) preparing raw materials: preparing EPDM rubber, liquid EPDM, graphene, a vulcanizing agent DCP and a crosslinking agent TAIC according to the mass parts in the embodiment;
2) premixing graphene: pouring the graphene and the liquid EPDM into a stirring kettle, stirring for 10 minutes, and then cooling;
3) mixing EPDM rubber: adding the graphene premix obtained in the step 2) and EPDM rubber into an internal mixer, starting discharging when the temperature reaches 130 ℃, filtering and weighing, adding 1 parts of vulcanizing agent DCP, and discharging and standing;
4) and (3) weaving of the enhancement layer: weaving carbon fibers into a cylindrical shape by using a circular weaving machine according to a preset working pressure;
5) co-extrusion: penetrating a belt blank formed by weaving the enhancement layer on a core rod of a co-extrusion die, connecting the co-extrusion die with an extruder, starting the extruder, and extruding the mixed material obtained in the step 3);
6) and (3) vulcanization: sealing the belt head of the semi-finished product extruded in the step 5) by using a clamp, injecting 0.1MPa of air, and then drawing the belt head to pass through a 30m oven, wherein the temperature of the oven is 150 ℃, 1 part of vulcanizing agent DCP and 1 part of cross-linking agent TAIC are arranged in the oven;
7) and (3) cooling: cooling the vulcanized rubber hose;
8) winding: rolling up the manufactured rubber hose;
9) and (4) checking: and detecting the temperature, the pressure, the toughness, the sealing property, the thickness, the heat conductivity, the heat dissipation, the corrosiveness and the size of the rubber hose to obtain a finished product of the rubber hose.
EXAMPLE III
The utility model provides a high heat conduction rubber hose, includes inner liner, enhancement layer, inoxidizing coating, the enhancement layer is placed in the middle and is connected inner liner and inoxidizing coating, the inner liner sets up inside, inner liner and inoxidizing coating are mainly made by the mixing of raw and other materials of following parts by mass:
Figure BDA0002549776870000051
Figure BDA0002549776870000061
the embodiment provides a method for manufacturing a high-thermal-conductivity rubber hose, which comprises the following steps:
1) preparing raw materials: preparing EPDM rubber, liquid EPDM, graphene, a vulcanizing agent DCP and a crosslinking agent TAIC according to the mass parts in the embodiment;
2) premixing graphene: pouring the graphene and the liquid EPDM into a stirring kettle, stirring for 20 minutes, and then cooling;
3) mixing EPDM rubber: adding the graphene premix obtained in the step 2) and EPDM rubber into an internal mixer, discharging when the temperature reaches 140 ℃, filtering and weighing, adding 1 parts of vulcanizing agent DCP, and discharging and standing;
4) and (3) weaving of the enhancement layer: weaving carbon fibers into a cylindrical shape by using a circular weaving machine according to a preset working pressure;
5) co-extrusion: penetrating a belt blank formed by weaving the enhancement layer on a core rod of a co-extrusion die, connecting the co-extrusion die with an extruder, starting the extruder, and extruding the mixed material obtained in the step 3);
6) and (3) vulcanization: sealing the semi-finished belt head extruded in the step 5) by using a clamp, injecting 0.2MPa of air, and then drawing the semi-finished belt head through a 40m oven, wherein the temperature of the oven is 170 ℃, 2 parts of vulcanizing agent DCP and 2 parts of cross-linking agent TAIC are arranged in the oven;
7) and (3) cooling: cooling the vulcanized rubber hose;
8) winding: rolling up the manufactured rubber hose;
9) and (4) checking: and detecting the temperature, the pressure, the toughness, the sealing property, the thickness, the heat conductivity, the heat dissipation, the corrosiveness and the size of the rubber hose to obtain a finished product of the rubber hose.
Example four
The utility model provides a high heat conduction rubber hose, includes inner liner, enhancement layer, inoxidizing coating, the enhancement layer is placed in the middle and is connected inner liner and inoxidizing coating, the inner liner sets up inside, inner liner and inoxidizing coating are mainly made by the mixing of raw and other materials of following parts by mass:
Figure BDA0002549776870000071
the embodiment provides a method for manufacturing a high-thermal-conductivity rubber hose, which comprises the following steps:
1) preparing raw materials: preparing EPDM rubber, liquid EPDM, graphene, a vulcanizing agent DCP and a crosslinking agent TAIC according to the mass parts in the embodiment;
2) premixing graphene: pouring the graphene and the liquid EPDM into a stirring kettle, stirring for 25 minutes, and then cooling;
3) mixing EPDM rubber: adding the graphene premix obtained in the step 2) and EPDM rubber into an internal mixer, discharging when the temperature reaches 150 ℃, filtering and weighing, adding 2 parts of vulcanizing agent DCP, and discharging and standing;
4) and (3) weaving of the enhancement layer: weaving carbon fibers into a cylindrical shape by using a circular weaving machine according to a preset working pressure;
5) co-extrusion: penetrating a belt blank formed by weaving the enhancement layer on a core rod of a co-extrusion die, connecting the co-extrusion die with an extruder, starting the extruder, and extruding the mixed material obtained in the step 3);
6) and (3) vulcanization: sealing the belt head of the semi-finished product extruded in the step 5) by using a clamp, injecting 0.3MPa of air, and then drawing the belt head to pass through a 50m oven, wherein the temperature of the oven is 180 ℃, 2 parts of vulcanizing agent DCP and 2 parts of cross-linking agent TAIC are arranged in the oven;
7) and (3) cooling: cooling the vulcanized rubber hose;
8) winding: rolling up the manufactured rubber hose;
9) and (4) checking: and detecting the temperature, the pressure, the toughness, the sealing property, the thickness, the heat conductivity, the heat dissipation, the corrosiveness and the size of the rubber hose to obtain a finished product of the rubber hose.
In the invention, the thermal conductivity of the graphene is 50% better than that of graphite, four times better than that of aluminum alloy and twelve times better than that of copper; the thickness of the inner liner layer and the thickness of the protective layer are 0.9-2 mm, the weight of the rubber hose is reduced on the premise of ensuring the performance of the rubber hose, and the production, transportation and installation costs are reduced; the vulcanizing agent DCP is dicumyl peroxide, can greatly reduce the vulcanizing time and prolong the storage time of the rubber compound, and has good dynamic performance, small compression permanent deformation and good elasticity and aging resistance; the EPDM rubber, namely the ethylene propylene diene monomer rubber can reduce the cost of rubber products and has good aging resistance, corrosion resistance and heat resistance.
According to the invention, a processing technology combining premixing and mixing is adopted, the liquid EPDM is used for replacing oil, and is premixed with the graphene and then mixed, so that the rubber mixing efficiency is greatly improved, and the problem of reduction of the heat conductivity coefficient and the physical property of a rubber product caused by traditional oiling is solved. Meanwhile, the EPDM rubber has good heat resistance, the heat resistance of the rubber hose is further improved by matching with a vulcanizing agent DCP and a cross-linking agent TAIC, and the EPDM rubber and the high-heat-conductivity carbon fiber have good heat resistance, aging resistance and corrosion resistance, so that the prepared rubber hose has very high heat dissipation, heat resistance, aging resistance and corrosion resistance, and the service life of the rubber hose is prolonged.
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 content of the present invention within the scope of the protection of the present invention.

Claims (8)

1. The utility model provides a high heat conduction rubber hose, includes inner liner, enhancement layer, inoxidizing coating, the enhancement layer is placed in the middle and is connected inner liner and inoxidizing coating, the inner liner sets up inside its characterized in that: the inner liner and the protective layer are mainly prepared by mixing the following raw materials in parts by mass:
Figure FDA0002549776860000011
。
2. the high thermal conductivity rubber hose according to claim 1, wherein: the filling mass percentage of the graphene in the rubber hose is 30-35%.
3. The high thermal conductivity rubber hose according to claim 1, wherein: the thickness of inner liner and inoxidizing coating is 0.9 ~ 2 mm.
4. The high thermal conductivity rubber hose according to claim 1, wherein: the enhancement layer is a framework layer made of high-thermal-conductivity carbon fibers.
5. The high thermal conductivity rubber hose according to claim 1, wherein: the reinforcing layer is a cylindrical fabric layer woven by adopting a warp and weft weaving method.
6. The high thermal conductivity rubber hose according to claim 1, wherein: the vulcanizing agent DCP is added into the rubber hose in a mass percentage of 2.5-3.5%.
7. A method for manufacturing a high thermal conductive rubber hose according to any one of claims 1 to 6, comprising the steps of:
1) preparing raw materials: EPDM rubber, liquid EPDM, graphene, a vulcanizing agent DCP and a cross-linking agent TAIC;
2) premixing graphene: pouring graphene and liquid EPDM into a stirring kettle, stirring for 10-30 minutes, and then cooling;
3) mixing EPDM rubber: adding the graphene premix obtained in the step 2) and EPDM rubber into an internal mixer, discharging when the temperature reaches 130-160 ℃, filtering, weighing, adding a vulcanizing agent DCP according to the specific gravity, and discharging and standing;
4) and (3) weaving of the enhancement layer: weaving carbon fibers into a cylindrical shape by using a circular weaving machine according to a preset working pressure;
5) co-extrusion: penetrating the belt blank formed by the reinforcing layer on a core rod of a co-extrusion die, connecting the co-extrusion die with an extruder, starting the extruder, and extruding the mixed material obtained in the step 3);
6) and (3) vulcanization: sealing the semi-finished product belt head extruded in the step 5) by using a clamp, injecting 0.1-0.3 MPa of air, and then drawing the semi-finished product belt head through an oven of 30-70 m, wherein the temperature of the oven is 150-190 ℃;
7) and (3) cooling: cooling the vulcanized rubber hose;
8) winding: rolling up the manufactured rubber hose;
9) and (4) checking: and detecting the temperature, the pressure, the toughness, the sealing property, the thickness, the heat conductivity, the heat dissipation, the corrosiveness and the size of the rubber hose to obtain a finished product of the rubber hose.
8. The method for manufacturing a high thermal conductivity rubber hose according to claim 7, wherein: the vulcanizing agent DCP and the cross-linking agent TAIC are used together in the step 6), and the weight ratio of the cross-linking agent TAIC to the vulcanizing agent DCP is 2-4: 1.
CN202010572164.7A 2020-06-22 2020-06-22 High-heat-conductivity rubber hose and manufacturing method thereof Pending CN111791543A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113372726A (en) * 2021-06-17 2021-09-10 江阴市中鼎节能流体科技有限公司 Water-cooling circulating rubber hose for inverter and preparation method thereof

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CN105061903A (en) * 2015-07-07 2015-11-18 江苏中通管业有限公司 Production technology of cooling water pipes
CN106633422A (en) * 2016-10-19 2017-05-10 黄宇 Graphene modified rubber material
CN106626426A (en) * 2016-12-15 2017-05-10 中裕软管科技有限公司 One-time formed rubber double-face rubber hose and process thereof
CN110039743A (en) * 2019-05-10 2019-07-23 浙江峰源新材料科技股份有限公司 A kind of preparation method of bamboo carbon fibre Reinforced PVC hose

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Publication number Priority date Publication date Assignee Title
CN103697255A (en) * 2013-12-24 2014-04-02 苏州华东橡胶工业有限公司 Fibre-woven synthetic resin high-pressure hose
CN105061903A (en) * 2015-07-07 2015-11-18 江苏中通管业有限公司 Production technology of cooling water pipes
CN106633422A (en) * 2016-10-19 2017-05-10 黄宇 Graphene modified rubber material
CN106626426A (en) * 2016-12-15 2017-05-10 中裕软管科技有限公司 One-time formed rubber double-face rubber hose and process thereof
CN110039743A (en) * 2019-05-10 2019-07-23 浙江峰源新材料科技股份有限公司 A kind of preparation method of bamboo carbon fibre Reinforced PVC hose

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113372726A (en) * 2021-06-17 2021-09-10 江阴市中鼎节能流体科技有限公司 Water-cooling circulating rubber hose for inverter and preparation method thereof

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Application publication date: 20201020