CN111672726A - Nano carbon crystal water heating module - Google Patents
Nano carbon crystal water heating module Download PDFInfo
- Publication number
- CN111672726A CN111672726A CN202010543124.XA CN202010543124A CN111672726A CN 111672726 A CN111672726 A CN 111672726A CN 202010543124 A CN202010543124 A CN 202010543124A CN 111672726 A CN111672726 A CN 111672726A
- Authority
- CN
- China
- Prior art keywords
- heat
- carbon crystal
- nano
- layer
- nano carbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
- B05D7/584—No clear coat specified at least some layers being let to dry, at least partially, before applying the next layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2451/00—Type of carrier, type of coating (Multilayers)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2502/00—Acrylic polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2504/00—Epoxy polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2601/00—Inorganic fillers
- B05D2601/20—Inorganic fillers used for non-pigmentation effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2602/00—Organic fillers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a nano carbon crystal water heating module, and belongs to the technical field of floor heating equipment. The heat-insulating floor heating pipe comprises a heat-insulating layer, a heat-conducting layer, a floor heating pipe and a covering layer. The heat insulation layer comprises a ground heating heat reflecting film laid on the cement ground and a heat insulation board laid on the ground heating heat reflecting film and provided with a preset line groove on the upper layer; the heat conduction layer comprises a heat conduction aluminum plate which is laid on the heat insulation plate and is attached to the upper layer of the heat insulation plate in shape, and a nano carbon crystal layer coated on the heat conduction aluminum plate; the ground heating pipe is embedded in the groove of the heat-conducting aluminum plate and is communicated with a hot water source; the covering layer comprises an aluminum foil adhesive tape used for packaging the ground heating pipe and a non-woven fabric layer used for packaging the heat conduction layer. According to the invention, the water heating pipe is adopted to replace an electric heating device, and as the specific heat capacity of water is compared, the temperature rise process is softer, the heat preservation time is longer, the influence on the humidity of air is smaller, and the problems of heat energy superposition, power supply capacity increase, infrared radiation, comfort and the like caused by the traditional electric floor heating are solved.
Description
Technical Field
The invention belongs to the technical field of floor heating equipment, and particularly relates to a nano carbon crystal water heating module.
Background
The existing central heating mode needs to consume a large amount of financial resources and material resources in the installation of a heating system, the heat loss is serious in the transmission process, and in most areas in the south, the central heating system cannot be adopted as the heating mode in consideration of the reasons of climate, cost and the like. The electric heating system is used by directly arranging electric heating elements (heating cables, carbon crystal plates and electric heating plates) under the floor, and has the advantages of flexibility, easiness in adjustment, convenience, independence, strong operability and the like.
However, through years of research by the applicant, the following problems are found to exist in the electric heating system: 1. the heat energy is superposed, namely the temperature of the area close to the heating film is higher, and the temperature of the temperature measuring area is lower, so that the whole floor heating is not uniformly heated, and even the safety problem can be caused when the temperature is serious; 2. the power supply capacity is increased, and because the resistance of the heating element is large, the required starting power is large in the starting process, and the damage to a power supply circuit is large; 3. the electromagnetic radiation can generate a large amount of electromagnetic radiation in the heating process of the electric heating element, the electromagnetic radiation is absorbed by skin, and when the electric heating element is in infrared radiation for a long time, the skin pigment can be increased, skin diseases can be formed, even the electromagnetic radiation can penetrate into subcutaneous tissues, and irreversible negative effects can be generated on the body; 4. the comfort has the problem that the heating rate of the electric heating element is too high, the floor heating is uneven, so that water vapor in the air is condensed, and the indoor air is dry to cause discomfort of a human body.
Disclosure of Invention
The purpose of the invention is as follows: provides a nano carbon crystal water heating module to solve the problems involved in the background technology.
The technical scheme is as follows: a nano carbon crystal water heating module includes: the heat insulating layer, the heat conducting layer, the ground heating pipe and the covering layer. The heat insulation layer comprises a ground heating heat reflecting film paved and installed on a cement ground and a heat insulation board paved on the ground heating heat reflecting film and provided with a preset line groove on the upper layer; the heat conduction layer comprises a heat conduction aluminum plate which is laid on the heat insulation plate and is attached to the shape of the upper layer of the heat insulation plate, and a nano carbon crystal layer coated on the heat conduction aluminum plate; the ground heating pipe is embedded in the groove of the heat-conducting aluminum plate and is communicated with a hot water source; the covering layer comprises an aluminum foil adhesive tape used for packaging the ground heating pipe and a non-woven fabric layer used for packaging the heat conduction layer.
Preferably, the heat insulation board is made of one material of XPS, EPS, foamed ceramics and foamed cement.
Preferably, the ground heating pipe is made of PEX-B or PERT pipe.
Preferably, the nano carbon crystal layer comprises the following components in parts by weight: 5-10 parts of graphene, 5-15 parts of teflon, 30-50 parts of carbon fiber, 2-4 parts of dispersing agent and 50-100 parts of pyrrolidone solvent.
Preferably, the graphene needs to be subjected to surface treatment before use, and the surface treatment process is as follows:
and 2, dispersing the graphene and the dispersing agent in isopropanol under the action of ultrasonic waves to form turbid liquid, and then adding a silane coupling agent KH-570 solution, wherein the mass ratio of the graphene to the silane coupling agent KH-570 is 1: (1.1-2.0); and then, continuously stirring for 3-5 h under the reflux condition of 80-90 ℃, and then filtering, washing and drying to obtain black silylated graphene.
Preferably, the length of the crystal grain of the carbon fiber is 20-100 nanometers, and the preparation process comprises the following steps: and calcining the mechanically-cut short carbon fibers in a muffle furnace at 500-600 ℃ for 30-40 min, taking out the carbon fibers after furnace cooling, grinding the carbon fibers in a mortar for 15-30 min, soaking the carbon fibers in a silane coupling agent solution, continuously stirring for 3-5 h under the reflux condition of 80-90 ℃, filtering and drying a filter cake after the carbon fibers are fully reacted, and continuously grinding the carbon fibers in the mortar for 15-30 min.
Preferably, the nano carbon crystal layer is coated on the heat-conducting aluminum plate through a spraying process. The spraying process comprises the following steps: step 1, preprocessing, detecting the surface of a heat-conducting aluminum plate, polishing the aluminum plate by using abrasive paper, removing rust spots on the surface of the aluminum plate, degreasing by using alkali liquor, cleaning by using a cleaning agent to remove oil stains on the surface, and finally pickling by using hydrofluoric acid to remove light and oxygen; step 2, preparing the nano carbon crystal finish paint, mixing graphene, teflon, carbon fiber, a dispersing agent and a pyrrolidone solvent according to a predetermined ratio, and then mixing the mixture with the epoxy resin paint according to a ratio of 1: (0.5-1) to form a nano carbon crystal finish; step 3, a painting process, namely firstly spraying epoxy resin paint on the surface of the aluminum material, placing the aluminum material at the temperature of 50-60 ℃, and baking for 5min to form primer which is not completely solidified; then spraying the nano carbon crystal finish paint on the surface of the nano carbon crystal finish paint, placing the nano carbon crystal finish paint at the temperature of 80-90 ℃, baking the nano carbon crystal finish paint for 45-60 min, and then heating the nano carbon crystal finish paint to 145-160 ℃ for baking the nano carbon crystal finish paint for 15-30 min; and finally, spraying a layer of polyacrylate oil-based finish paint, placing the finish paint at the temperature of 200-220 ℃, and baking for 15-30 min to obtain the finished product.
Preferably, the cross-sectional shape of the groove is an inverted "Ω" shape.
Has the advantages that: the invention relates to a nano carbon crystal water heating module, which adopts a water heating pipe to replace an electric heating device, has softer temperature rise process, longer heat preservation time and smaller influence on the humidity of air due to the comparison of specific heat capacity of water, and solves the problems of heat energy superposition, power supply capacity increase, infrared radiation, comfort and the like caused by the traditional electric floor heating. In addition, the traditional plastic heat-conducting plate is replaced by the heat-conducting aluminum plate, the paint spraying process is optimized, the high-temperature baking process is adopted, the combination degree of the graphene and the aluminum plate is improved, and the problem that the existing graphene film is easy to crack and fall off in the long-term cold and heat change process is solved. The graphene material is subjected to surface treatment and then compounded with the carbon fiber and the Teflon, so that the use amount of the graphene material is reduced, and the cost is reduced.
Drawings
Fig. 1 is an exploded view of the structure of the present invention.
The reference signs are: the floor heating heat-reflecting film comprises a floor heating heat-reflecting film 1, a heat-insulating plate 2, a heat-conducting aluminum plate 3, a nano carbon crystal layer 4, a groove 5, a floor heating pipe 6, an aluminum foil adhesive tape 7 and a non-woven fabric layer 8.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
The electric heating system directly arranges the electric heating elements (heating cables, carbon crystal plates and electric heating plates) under the floor for use, and has the advantages of flexibility, easy adjustment, convenience, independence, strong operability and the like. However, through years of research by the applicant, the following problems are found to exist in the electric heating system: 1. the heat energy is superposed, namely the temperature of the area close to the heating film is higher, and the temperature of the temperature measuring area is lower, so that the whole floor heating is not uniformly heated, and even the safety problem can be caused when the temperature is serious; 2. the power supply capacity is increased, and because the resistance of the heating element is large, the required starting power is large in the starting process, and the damage to a power supply circuit is large; 3. the electromagnetic radiation can generate a large amount of electromagnetic radiation in the heating process of the electric heating element, the electromagnetic radiation is absorbed by skin, and when the electric heating element is in infrared radiation for a long time, the skin pigment can be increased, skin diseases can be formed, even the electromagnetic radiation can penetrate into subcutaneous tissues, and irreversible negative effects can be generated on the body; 4. the comfort has the problem that the heating rate of the electric heating element is too high, the floor heating is uneven, so that water vapor in the air is condensed, and the indoor air is dry to cause discomfort of a human body.
The applicant designs a nano carbon crystal water heating module by adopting a water heating pipe to replace an electric heating device, as shown in the attached figure 1, comprising: the heat insulating layer, the heat conducting layer, the ground heating pipe and the covering layer. Wherein, the insulating layer is including laying the anti-heat membrane of heating up of installing on cement ground, and lay on the anti-heat membrane of heating up, and its upper strata is provided with the heated board of predetermined circuit recess, the heated board adopts XPS, EPS, foamed ceramics, foamed cement's a material to make. The heat conduction layer comprises a heat conduction aluminum plate which is laid on the heat insulation plate and is attached to the shape of the upper layer of the heat insulation plate, and a nano carbon crystal layer coated on the heat conduction aluminum plate; the ground heating pipe is embedded in the groove of the heat-conducting aluminum plate and is made of PEX-B or PERT pipes and communicated with a hot water source. The covering layer comprises an aluminum foil adhesive tape used for packaging the ground heating pipe and a non-woven fabric layer used for packaging the heat conduction layer. The cross-sectional shape of recess is "omega" shape, need not the cramp can be fixed in the recess with the ground heating coil.
In the actual use process, the hot water in the hot water source (can be boiler, natural gas water heater, electric water heater etc.) is led into in the ground heating coil through the water pump, and the heat transfer through the heat transfer of concave part is with heat transfer to the heat conduction aluminum plate in, because aluminum plate surface coating has a layer of nanometer carbon crystal layer, its heat conductivity is higher than 0.14W/m K, great increase its heat-sinking capability, the heat can be followed aluminum plate surface and evenly launched the heat through the mode of radiation and heat transfer on the aluminum plate. It should be noted that, because the nanocarbon crystal layer is a three-dimensional carbon fiber network formed by carbon fibers and graphene, in the heat transfer process, the rate plate transfers heat energy to the nanocarbon crystal, and due to lattice vibration of carbon atoms of the material, after 1min, thermal state balance is achieved between the nanocarbon crystal layer and the surface material thereof, and then far infrared radiation is performed at a constant temperature. Can bring health care and body building effects when being contacted with far infrared radiation for a long time.
Coating the nano carbon crystal layer on the surface of the aluminum plate, and improving the heat dissipation capacity of the heat-conducting aluminum plate by depending on the nano carbon crystal layer, wherein the nano carbon crystal layer needs to have two conditions: the nano carbon crystal layer can quickly conduct heat to the surface of the nano carbon crystal layer and quickly radiate and dissipate heat in a far infrared radiation mode, namely, the heat conductivity and the emissivity of the material are concerned at the same time. Literature review and experiments prove that when the nano-carbon crystal layer is completely prepared from the graphene material, the nano-carbon crystal layer has the best thermal conductivity and far infrared emissivity effects. However, in the actual use process, the applicant considers the problems of cost and the like, and by analyzing the ANSYS numerical simulation value and the experimental value of the thermal conductivity of the nano carbon crystal layer, when the doping amount of the graphene is low, the thermal conductivity and the emissivity of the graphene are low. When the mass fraction of the graphene reaches 3%, the thermal conductivity is 0.56W/m.K, the emissivity is more than 0.90, and the graphene is far higher than the industrial level in the market. Preferably, the nano carbon crystal layer comprises the following components in parts by weight: 5-10 parts of graphene, 5-15 parts of teflon, 30-50 parts of carbon fiber, 2-4 parts of dispersing agent and 50-100 parts of pyrrolidone solvent.
In the specific implementation process, the problem of dispersion and bonding strength of the filler in the coating process needs to be considered. According to the invention, the traditional plastic heat-conducting plate is replaced by the heat-conducting aluminum plate, the paint spraying process is optimized, and the high-temperature baking process is adopted, so that the combination degree of graphene and the aluminum plate is improved, and the problem that the existing graphene film is easy to crack and fall off in the long-term cold and heat change process is solved.
In a specific implementation process, the nano carbon crystal layer is coated on the heat-conducting aluminum plate through a spraying process. The spraying process comprises the following steps: step 1, preprocessing, detecting the surface of a heat-conducting aluminum plate, polishing the aluminum plate by using abrasive paper, removing rust spots on the surface of the aluminum plate, degreasing by using alkali liquor, cleaning by using a cleaning agent to remove oil stains on the surface, and finally pickling by using hydrofluoric acid to remove light and oxygen; step 2, preparing the nano carbon crystal finish paint, mixing the graphene, the teflon, the carbon fiber, the dispersing agent and the pyrrolidone solvent according to a preset ratio, and then mixing the mixture with the epoxy resin paint according to a ratio of 1: (0.5-1) to form a nano carbon crystal finish; step 3, a painting process, namely firstly spraying epoxy resin paint on the surface of the aluminum material, placing the aluminum material at the temperature of 50-60 ℃, and baking for 5min to form primer which is not completely solidified; then spraying the nano carbon crystal finish paint on the surface of the nano carbon crystal finish paint, placing the nano carbon crystal finish paint at the temperature of 80-90 ℃, baking the nano carbon crystal finish paint for 45-60 min, and then heating the nano carbon crystal finish paint to 145-160 ℃ for baking the nano carbon crystal finish paint for 15-30 min; and finally, spraying a layer of polyacrylate oil-based finish paint, placing the finish paint at the temperature of 200-220 ℃, and baking for 15-30 min to obtain the finished product. When the nano carbon crystal finish paint is coated, because the epoxy resin paint primer is not completely solidified, in the curing process at the temperature of 80-90 ℃, the micromolecule epoxy resin paint of the nano carbon crystal finish paint can be diffused inwards, is combined with the epoxy resin paint primer, is cured to form a film, is connected with the cured nano carbon crystal layer through a silane coupling agent to achieve the curing effect, and is covered with a layer of polyacrylate oily protection paint on the surface.
The graphene needs to be subjected to surface treatment before use, and the surface treatment process comprises the following steps: firstly, dispersing graphene and a dispersing agent in an iron chloride solution under the action of ultrasonic waves, continuously reacting for 2-5 hours under the condition of low boiling point under the protection of nitrogen, finally adding dilute hydrochloric acid to remove nano-scale iron oxide particles in the solution, washing the solution to be neutral, filtering and drying the solution for later use; and then dispersing the graphene and a dispersing agent in isopropanol under the action of ultrasonic waves to form turbid liquid, and then adding a silane coupling agent KH-570 solution, wherein the mass ratio of the graphene to the silane coupling agent KH-570 is 1: (1.1-2.0); and then, continuously stirring for 3-5 h under the reflux condition of 80-90 ℃, and then filtering, washing and drying to obtain black silylated graphene. The nanometer-level ferric oxide generated by a ferric chloride high-temperature hydration method reacts with activated carbon atoms in graphene to generate nanometer holes, and then hydrochloric acid is used for hydrolyzing the ferric oxide to form defect states inside the graphene and form active sites on the surface of the graphene, so that the adsorption capacity of the graphene and a silane coupling agent KH-570 is improved, and the stability of a three-dimensional structure is enhanced.
In addition, the length of the crystal grain of the carbon fiber is 20-100 nanometers, and the preparation process comprises the following steps: and calcining the mechanically-cut short carbon fibers in a muffle furnace at 500-600 ℃ for 30-40 min, taking out the carbon fibers after furnace cooling, grinding the carbon fibers in a mortar for 15-30 min, soaking the carbon fibers in a silane coupling agent solution, continuously stirring for 3-5 h under the reflux condition of 80-90 ℃, filtering and drying a filter cake after the carbon fibers are fully reacted, and continuously grinding the carbon fibers in the mortar for 15-30 min.
The distribution of the short carbon fibers is in a random state, the mixing amount of the short carbon fibers is high, the short carbon fibers are mutually overlapped in the nano carbon crystal layer to form a three-dimensional carbon fiber network, electrons activated by thermal vibration easily jump to adjacent carbon fibers to form tunnel ionization, the nano carbon crystals are accelerated to reach a thermal state balance state, and then far infrared radiation is carried out at constant temperature.
The invention will now be further described with reference to the following examples, which are intended to be illustrative of the invention and are not to be construed as limiting the invention.
Example 1
And the nano carbon crystal layer is coated on the heat-conducting aluminum plate through a spraying process. The spraying process comprises the following steps:
surface treatment of graphene: firstly, dispersing graphene and a dispersing agent in an iron chloride solution under the action of ultrasonic waves, continuously reacting for 3 hours under the condition of low boiling point under the protection of nitrogen, finally adding dilute hydrochloric acid to remove nano-scale iron oxide particles in the solution, washing the solution to be neutral, filtering and drying the solution for later use; and then dispersing the graphene and a dispersing agent in isopropanol under the action of ultrasonic waves to form turbid liquid, and then adding a silane coupling agent KH-570 solution, wherein the mass ratio of the graphene to the silane coupling agent KH-570 is 1: 1.5; then, stirring was continued for 4 hours under reflux conditions at 85 ℃, followed by filtration, washing with water, and drying to obtain black silylated graphene.
Preparing carbon fibers: and (2) mechanically cutting short carbon fibers, calcining the carbon fibers in a muffle furnace at 550 ℃ for 35min, taking out the carbon fibers after furnace cooling, grinding the carbon fibers in a mortar for 20min, soaking the carbon fibers in a silane coupling agent solution, continuously stirring for 4h under the reflux condition of 85 ℃, filtering and drying a filter cake after the carbon fibers are fully reacted, and continuously grinding the carbon fibers in the mortar for 20 min.
Pretreatment of a heat-conducting aluminum plate: detecting the surface of the heat-conducting aluminum plate, polishing the aluminum material by using abrasive paper, removing rust spots on the surface of the aluminum material, degreasing by using alkali liquor, cleaning by using a cleaning agent to remove oil stains on the surface, and finally pickling by using hydrofluoric acid to remove light and oxygen;
preparing nano carbon crystal finish paint: mixing and stirring 8 parts of graphene, 10 parts of teflon, 40 parts of carbon fiber, 2.9 parts of hexadecyl trimethyl ammonium bromide and 60 parts of N-methyl pyrrolidone to form a suspension liquid, and mixing the suspension liquid with epoxy resin paint according to a ratio of 1: 0.8 to form the nano carbon crystal finish paint.
The painting process comprises the following steps: firstly, spraying epoxy resin paint on the surface of an aluminum material, placing the aluminum material at 55 ℃, and baking for 5min to form a primer which is not completely solidified; then spraying the nano carbon crystal finish paint on the surface of the nano carbon crystal finish paint, placing the nano carbon crystal finish paint at 85 ℃ for baking for 50min, and then heating the nano carbon crystal finish paint to 150 ℃ for baking for 20 min; and finally, spraying a layer of polyacrylate oil-based finish paint, and baking for 20min at 210 ℃ to obtain the finished product.
Example 2
And the nano carbon crystal layer is coated on the heat-conducting aluminum plate through a spraying process. The spraying process comprises the following steps:
surface treatment of graphene: firstly, dispersing graphene and a dispersing agent in an iron chloride solution under the action of ultrasonic waves, continuously reacting for 2 hours under the condition of low boiling point under the protection of nitrogen, finally adding dilute hydrochloric acid to remove nano-level iron oxide particles in the solution, washing the solution to be neutral, filtering and drying the solution for later use; and then dispersing the graphene and a dispersing agent in isopropanol under the action of ultrasonic waves to form turbid liquid, and then adding a silane coupling agent KH-570 solution, wherein the mass ratio of the graphene to the silane coupling agent KH-570 is 1: 1; then, the mixture was stirred at 80 ℃ under reflux for 5 hours, and then filtered, washed with water, and dried to obtain black silylated graphene.
Preparing carbon fibers: and (2) calcining the mechanically-cut short carbon fibers in a muffle furnace at 500 ℃ for 40min, taking out the carbon fibers after furnace cooling, grinding the carbon fibers in a mortar for 30min, soaking the carbon fibers in a silane coupling agent solution, continuously stirring for 5h under the reflux condition of 80 ℃, filtering and drying a filter cake after the carbon fibers are fully reacted, and continuously grinding the carbon fibers in the mortar for 30 min.
Pretreatment of a heat-conducting aluminum plate: the method comprises the steps of detecting the surface of a heat-conducting aluminum plate, polishing the aluminum material by using abrasive paper, removing rust spots on the surface of the aluminum material, degreasing by using alkali liquor, cleaning by using a cleaning agent, removing oil stains on the surface, and finally pickling by using hydrofluoric acid to remove light and oxygen.
Preparing nano carbon crystal finish paint: mixing and stirring 5 parts of graphene, 5 parts of teflon, 30 parts of carbon fiber, 2 parts of hexadecyl trimethyl ammonium bromide and 50 parts of N-methyl pyrrolidone to form a suspension liquid, and mixing the suspension liquid with epoxy resin paint according to a ratio of 1: 0.5 to form the nano carbon crystal finish paint.
The painting process comprises the steps of firstly spraying epoxy resin paint on the surface of an aluminum product, placing the aluminum product at 50 ℃, and baking for 5min to form a primer which is not completely solidified; then spraying the nano carbon crystal finish paint on the surface of the nano carbon crystal finish paint, placing the nano carbon crystal finish paint at the temperature of 80 ℃ for baking for 60min, and then heating the nano carbon crystal finish paint to 145 ℃ for baking for 30 min; and finally, spraying a layer of polyacrylate oil-based finish paint, and baking for 30min at the temperature of 200 ℃ to obtain the finished product.
Example 3
And the nano carbon crystal layer is coated on the heat-conducting aluminum plate through a spraying process. The spraying process comprises the following steps:
surface treatment of graphene: firstly, dispersing graphene and a dispersing agent in an iron chloride solution under the action of ultrasonic waves, continuously reacting for 5 hours under the condition of low boiling point under the protection of nitrogen, finally adding dilute hydrochloric acid to remove nano-scale iron oxide particles in the solution, washing the solution to be neutral, filtering and drying the solution for later use; and then dispersing the graphene and a dispersing agent in isopropanol under the action of ultrasonic waves to form turbid liquid, and then adding a silane coupling agent KH-570 solution, wherein the mass ratio of the graphene to the silane coupling agent KH-570 is 1: 2; then, the mixture was stirred at 90 ℃ under reflux for 3 hours, and then filtered, washed with water, and dried to obtain black silylated graphene.
Preparing carbon fibers: and (2) calcining the mechanically-cut short carbon fibers in a muffle furnace at 600 ℃ for 30min, taking out the carbon fibers after furnace cooling, grinding the carbon fibers in a mortar for 15min, soaking the carbon fibers in a silane coupling agent solution, continuously stirring for 3h under the reflux condition of 90 ℃, filtering and drying a filter cake after the carbon fibers are fully reacted, and continuously grinding the filter cake in the mortar for 15 min.
Pretreatment of a heat-conducting aluminum plate: detecting the surface of the heat-conducting aluminum plate, polishing the aluminum material by using abrasive paper, removing rust spots on the surface of the aluminum material, degreasing by using alkali liquor, cleaning by using a cleaning agent to remove oil stains on the surface, and finally pickling by using hydrofluoric acid to remove light and oxygen;
preparing nano carbon crystal finish paint: mixing and stirring 10 parts of graphene, 15 parts of teflon, 50 parts of carbon fiber, 4 parts of hexadecyl trimethyl ammonium bromide and 100 parts of N-methyl pyrrolidone to form a suspension liquid, and mixing the suspension liquid with epoxy resin paint according to a ratio of 1: 1 to form the nano carbon crystal finish paint.
The painting process comprises the steps of firstly spraying epoxy resin paint on the surface of an aluminum product, placing the aluminum product at 60 ℃, and baking for 5min to form a primer which is not completely solidified; then spraying the nano carbon crystal finish paint on the surface of the nano carbon crystal finish paint, placing the nano carbon crystal finish paint at the temperature of 90 ℃ for baking for 45min, and then heating the nano carbon crystal finish paint to the temperature of 160 ℃ for baking for 15 min; and finally, spraying a layer of polyacrylate oil-based finish paint, placing at 220 ℃, baking for 15min, and taking off the production line.
Example 4
In addition to example 1, the graphene used was commercially available graphene, and was not subjected to surface treatment. The specific process of the surface treatment of the graphene is as follows: then, dispersing commercially available graphene and a dispersing agent in isopropanol under the action of ultrasonic waves to form turbid liquid, and then adding a silane coupling agent KH-570 solution, wherein the mass ratio of the graphene to the silane coupling agent KH-570 is 1: 2; then, the mixture was stirred at 90 ℃ under reflux for 3 hours, and then filtered, washed with water, and dried to obtain black silylated graphene.
The other steps and parameters were the same as those in example 1.
Example 5
On the basis of the embodiment 1, all the fillers in the nano carbon crystal finishing paint are graphene. The specific preparation process of the nano carbon crystal finish paint is as follows: mixing and stirring 45 parts of graphene, 5 parts of hexadecyl trimethyl ammonium bromide and 80 parts of N-methyl pyrrolidone in parts by weight to form a suspension liquid, and then mixing the suspension liquid with epoxy resin paint according to a ratio of 1: 1 to form the nano carbon crystal finish paint.
The other steps and parameters were the same as those in example 1.
Example of detection
The emissivity is measured by a hemisphere emissivity tester at normal temperature; testing the thermal conductivity by adopting a DRL-III type thermal conductivity tester according to GB 5598-85; the adhesion strength of the coatings was tested using MH/T3027-2013.
The above table shows that examples 1 to 3 have better thermal conductivity and emissivity, and although there is a certain difference from example 5, it should be noted that the amount of graphene is only about 1/5 of example 5.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (9)
1. A nano carbon crystal water heating module is characterized by comprising:
the heat insulation layer comprises a floor heating heat reflecting film laid and installed on the cement ground and a heat insulation board laid on the floor heating heat reflecting film and provided with a preset line groove on the upper layer;
the heat conduction layer comprises a heat conduction aluminum plate which is laid on the heat insulation plate and is attached to the shape of the upper layer of the heat insulation plate, and a nano carbon crystal layer coated on the heat conduction aluminum plate;
the ground heating pipe is embedded in the groove of the heat-conducting aluminum plate and is communicated with a hot water source;
and the covering layer comprises an aluminum foil adhesive tape for packaging the ground heating pipe and a non-woven fabric layer for packaging the heat conduction layer.
2. The nano-carbon crystal water heating module according to claim 1, wherein the insulation board is made of one of XPS, EPS, foamed ceramic, and foamed cement.
3. The nano-carbon crystal water heating module according to claim 1, wherein the ground heating pipe is made of PEX-B or PERT pipe.
4. The nanocarbon crystal water heating module according to claim 1, wherein the nanocarbon crystal layer comprises the following components in parts by weight: 5-10 parts of graphene, 5-15 parts of teflon, 30-50 parts of carbon fiber, 2-4 parts of dispersing agent and 50-100 parts of pyrrolidone solvent.
5. The nano-carbon crystal water heating module according to claim 4, wherein the graphene is subjected to surface treatment before use, and the surface treatment process comprises the following steps:
step 1, dispersing graphene and a dispersing agent in an iron chloride solution under the action of ultrasonic waves, continuously reacting for 2-5 hours under the protection of nitrogen under the condition of low boiling point, finally adding dilute hydrochloric acid to remove nano-scale iron oxide particles in the solution, washing the solution to be neutral, filtering and drying the solution for later use;
and 2, dispersing the graphene and the dispersing agent in isopropanol under the action of ultrasonic waves to form turbid liquid, and then adding a silane coupling agent KH-570 solution, wherein the mass ratio of the graphene to the silane coupling agent KH-570 is 1: (1.1-2.0); and then, continuously stirring for 3-5 h under the reflux condition of 80-90 ℃, and then filtering, washing and drying to obtain black silylated graphene.
6. The nanocarbon crystal water heating module according to claim 4, wherein the length of the crystal grain of the carbon fiber is 20 to 100 nm, and the preparation process comprises the following steps: and calcining the mechanically-cut short carbon fibers in a muffle furnace at 500-600 ℃ for 30-40 min, taking out the carbon fibers after furnace cooling, grinding the carbon fibers in a mortar for 15-30 min, soaking the carbon fibers in a silane coupling agent solution, continuously stirring for 3-5 h under the reflux condition of 80-90 ℃, filtering and drying a filter cake after the carbon fibers are fully reacted, and continuously grinding the carbon fibers in the mortar for 15-30 min.
7. The nano carbon crystal water heating module according to claim 1, wherein the nano carbon crystal layer is coated on the heat conductive aluminum plate through a spray coating process.
8. The nano-carbon crystal water heating module according to claim 7, wherein the spraying process comprises the steps of:
step 1, pretreatment
Detecting the surface of the heat-conducting aluminum plate, polishing the aluminum material by using abrasive paper, removing rust spots on the surface of the aluminum material, degreasing by using alkali liquor, cleaning by using a cleaning agent to remove oil stains on the surface, and finally pickling by using hydrofluoric acid to remove light and oxygen;
step 2, preparation of nano carbon crystal finish paint
Mixing graphene, teflon, carbon fiber, a dispersing agent and a pyrrolidone solvent according to a predetermined ratio, and then mixing the mixture with epoxy resin paint according to a ratio of 1: (0.5-1) to form a nano carbon crystal finish;
step 3, painting process
Firstly, spraying epoxy resin paint on the surface of an aluminum product, placing the aluminum product at 50-60 ℃, and baking for 5min to form a primer which is not completely solidified; then spraying the nano carbon crystal finish paint on the surface of the nano carbon crystal finish paint, placing the nano carbon crystal finish paint at the temperature of 80-90 ℃, baking the nano carbon crystal finish paint for 45-60 min, and then heating the nano carbon crystal finish paint to 145-160 ℃ for baking the nano carbon crystal finish paint for 15-30 min; and finally, spraying a layer of polyacrylate oil-based finish paint, placing the finish paint at the temperature of 200-220 ℃, and baking for 15-30 min to obtain the finished product.
9. The nano-carbon crystal water heating module according to claim 1, wherein the sectional shape of the groove is an inverted "Ω" shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010543124.XA CN111672726A (en) | 2020-06-15 | 2020-06-15 | Nano carbon crystal water heating module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010543124.XA CN111672726A (en) | 2020-06-15 | 2020-06-15 | Nano carbon crystal water heating module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111672726A true CN111672726A (en) | 2020-09-18 |
Family
ID=72435829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010543124.XA Withdrawn CN111672726A (en) | 2020-06-15 | 2020-06-15 | Nano carbon crystal water heating module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111672726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589982A (en) * | 2022-01-24 | 2022-06-07 | 江阴延利新材料科技有限公司 | Heat-conducting fibrilia ground heating floor and manufacturing method thereof |
-
2020
- 2020-06-15 CN CN202010543124.XA patent/CN111672726A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589982A (en) * | 2022-01-24 | 2022-06-07 | 江阴延利新材料科技有限公司 | Heat-conducting fibrilia ground heating floor and manufacturing method thereof |
| CN114589982B (en) * | 2022-01-24 | 2023-12-15 | 江阴延利新材料科技有限公司 | Heat-conducting fibrilia floor heating floor and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108192327B (en) | Negative ion flexible graphene electric heating composite material, negative ion flexible graphene electric heating composite film, preparation method and application | |
| CN109629793A (en) | Safety and environmental protection electric heating ceramic tile | |
| CN108774890B (en) | Graphene-based organic PTC (Positive temperature coefficient) self-temperature-control electrothermal fiber and preparation method and application thereof | |
| CN108314411A (en) | The method that silicon dioxide silica aerogel composite material is prepared without alcohol technique using no chlorine | |
| CN114031943B (en) | Inter-surface high-thermal-conductivity composite material and preparation method thereof | |
| CN111672726A (en) | Nano carbon crystal water heating module | |
| CN109457485A (en) | A kind of thermally protective materials and preparation method thereof of aeroge Composite aramid fiber non-woven cloth | |
| CN105368060A (en) | Organic silicon heating layer material, infrared radiation heating body and preparing method of infrared radiation heating body | |
| CN106431186A (en) | Method for preparing fiber-loaded rutile type TiO2 composite SiO2 aerogel | |
| CN109265917A (en) | Basalt fibre reinforced epoxy board making and stress measuring method | |
| CN109265909A (en) | The board making and stress determination method of basalt fibre enhancing phenolic resin | |
| CN103923462A (en) | Preparation method of modified PBO [poly(p-phenylene benzobisoxazole)] fiber prepreg | |
| CN111829046A (en) | Laying method of nano carbon crystal water heating module | |
| CN106273921A (en) | A kind of novel carbon fiber based on the hot sandwich layer of modified carbon fiber hot core floor | |
| CN111109987B (en) | Graphene far-infrared heating carpet | |
| CN110662313A (en) | Preparation method of water-based graphene far-infrared conductive paste | |
| CN105960035A (en) | Self-controlled temperature electrothermal film production method and electrothermal film thereof | |
| CN108484097A (en) | A kind of preparation method of lignin enhancing aerosil felt | |
| CN207869428U (en) | A kind of graphene heating film | |
| CN109121233A (en) | A kind of nano carbon material electric heating diaphragm and installation method | |
| CN108626771A (en) | A kind of healthy, durable type electricity floor heating system | |
| CN106658783A (en) | Heating device of instant-heating carbon fiber electric heating air conditioner | |
| CN206272873U (en) | A kind of electro-heat equipment of Instant heating type carbon fiber electrically warm air conditioner | |
| CN207569973U (en) | A kind of electrical heating wall warms up | |
| CN207117989U (en) | The omnipotent infrared patch of high-efficiency flexible |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200918 |