CN110922217A - Low-voltage heating ceramic tile and preparation method thereof - Google Patents
Low-voltage heating ceramic tile and preparation method thereof Download PDFInfo
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- CN110922217A CN110922217A CN201911293013.1A CN201911293013A CN110922217A CN 110922217 A CN110922217 A CN 110922217A CN 201911293013 A CN201911293013 A CN 201911293013A CN 110922217 A CN110922217 A CN 110922217A
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
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- C—CHEMISTRY; METALLURGY
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
- C04B41/90—Coating or impregnation for obtaining at least two superposed coatings having different compositions at least one coating being a metal
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- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
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- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
- E04F15/107—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials composed of several layers, e.g. sandwich panels
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- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
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- E—FIXED CONSTRUCTIONS
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- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/02—Specially adapted covering, lining or flooring elements not otherwise provided for for accommodating service installations or utility lines, e.g. heating conduits, electrical lines, lighting devices or service outlets
- E04F2290/023—Specially adapted covering, lining or flooring elements not otherwise provided for for accommodating service installations or utility lines, e.g. heating conduits, electrical lines, lighting devices or service outlets for heating
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Abstract
The invention discloses a low-voltage heating ceramic tile and a preparation method thereof, wherein the low-voltage heating ceramic tile comprises a ceramic tile substrate layer, a heating film layer, an electrode layer, a waterproof protective layer and an inorganic insulating layer which are sequentially arranged from top to bottom, wherein the heating film layer is a water-based graphene coating, the electrode layer is a metal conductive coating, the waterproof protective layer is a photocuring resin coating, and the inorganic insulating layer is an inorganic porous coating; the preparation method comprises the following steps: the ceramic tile comprises a ceramic tile substrate, a heating film layer, an electrode layer, a welding waterproof joint, a waterproof protective layer, an inorganic heat-insulating layer and decontamination treatment. The invention provides a low-voltage heating ceramic tile and a preparation method thereof, the heating ceramic tile has the advantages of thin overall thickness, low working voltage, uniform heating, excellent flame retardant property, safety, reliability, long service life and the like, and the preparation method has the characteristic of tightly combining layers and is easy to realize.
Description
Technical Field
The invention relates to the technical field of ceramic tiles, in particular to a low-voltage heating ceramic tile and a preparation method thereof.
Background
The heating ceramic tile is a ceramic tile with a heating function, and the ceramic tile does not have the capability of actively generating heat, so that the ceramic tile can be heated by an external heat source to radiate heat outwards to achieve the heating function. In the prior art, a heating ceramic tile generally comprises a ceramic tile base body layer, an electric heating layer, a waterproof protective layer and a heat preservation layer, wherein the electric heating layer is attached to the bottom surface of the ceramic tile, various coatings are attached to an electric heating element to play a role in protection, and the heat preservation layer is attached to the back surface of the ceramic tile to reduce the heat loss of the heating ceramic tile. The existing heating ceramic tile has the heating function, but has the following problems: (1) the working voltage of the existing heating ceramic tile is 220V, the voltage is high, and once electric leakage occurs, a large potential safety hazard is easily caused; (2) the back heat-insulating layer of the heating ceramic tile is thick (generally larger than 10mm), the indoor net layer height can be reduced when the heat-insulating layer is laid and pasted, the heat-insulating layer is usually made of organic materials, the ageing resistance and the fire resistance are poor, and safety accidents are easy to occur; (3) a PVC plastic plate and an air layer are arranged between the heating film layer and the ceramic tile layer, so that the heat transfer efficiency of the heating film is low; (4) the traditional heating brick adopts oily carbon slurry or oily graphene heating sheet slurry as a heating body of heating ceramic, and aromatic hydrocarbon or halogenated hydrocarbon solvents in oily media have strong carcinogenic factors, so that obvious safety and safety are hidden for human health in the preparation and use processes. It is seen that improvements and enhancements to the prior art are needed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a low-voltage heating ceramic tile and a preparation method thereof, and aims to overcome the defects of high working voltage, thick thickness, poor durability and low safety of the heating ceramic tile in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a low-voltage ceramic brick that generates heat, wherein includes from last ceramic tile base member layer, the rete, electrode layer, waterproof layer, the inorganic heat preservation that sets gradually down, the rete that generates heat is waterborne graphene coating, the electrode layer is metal conductive coating, the waterproof layer is the photocuring resin coating, the inorganic heat preservation is inorganic porous coating.
In the low-voltage heating ceramic tile, the aqueous graphene coating is formed by curing aqueous graphene slurry, and the aqueous graphene slurry comprises the following components in percentage by mass: 3.0-6.2% of graphene, 0.2-1.5% of dispersant, 0.5-1.5% of binder and 91.0-96% of purified water.
In the low-voltage heating ceramic tile, the number of graphene layers is 3-10, and the specific surface area is 400-2000 m2/g。
In the low-voltage heating ceramic tile, the dispersing agent comprises one of polyethylene glycol, fatty alcohol polyoxyethylene, glycol ester and glyceryl monostearate.
In the low-voltage heating ceramic tile, the binder comprises one of silane coupling agents KH-540, KH-560, KH-570, KH-792 and Si-602.
In the low-voltage heating ceramic tile, the metal conductive coating comprises one of a conductive silver paste coating or a conductive copper paste coating.
In the low-voltage heating ceramic tile, the light-cured resin coating is formed by curing light-cured resin, and the light-cured resin comprises the following components in parts by weight: 8-12 parts of epoxy acrylate prepolymer, 8-12 parts of acrylic acid monomer, 4-6 parts of sodium acrylate and 0.5-0.7 part of photoinitiator.
In the low-voltage heating ceramic tile, the inorganic porous coating is formed by curing inorganic porous paint, and the inorganic porous paint comprises the following components in percentage by mass: 20.0-25.0% of fumed silica, 8.0-15.0% of hollow microspheres, KH-5700.5-1.5% of silane coupling agent and 60.0-70.0% of purified water.
A method for preparing the low-voltage heating ceramic tile, wherein the method comprises the following steps:
step S1, ceramic tile matrix pretreatment: adhering four side surfaces and two opposite edges of the back surface of the ceramic tile substrate by using adhesive tapes, wherein the width of the adhesive tapes adhered to the edges of the back surface of the ceramic tile is 15 mm;
s2, installing a heating film layer: through a bell jar slurry spraying mode, the water-based graphene slurry is sprayed according to the proportion of 180-800 g/m2Uniformly spraying the coating on the back of the ceramic tile, baking at 100-150 ℃ for 15-45 min, and drying and curing to obtain a heating film layer;
s3, mounting an electrode layer: tearing off the two edge adhesive tapes on the back of the ceramic tile, then printing metal conductive paste on the back of the ceramic tile obtained in the step S2 in a screen printing mode, and drying at 120 ℃ to obtain an electrode layer with the line width of a conductive electrode being 10 mm;
s4, welding a waterproof joint: respectively welding two electrodes of a waterproof joint with the thickness of 3mm at the positive end and the negative end of the conductive electrode in the step S3;
s5, installing a waterproof protective layer: the back surface of the ceramic tile obtained in step S4 is 50-150 g/m2Uniformly coating photo-curing resin, and then irradiating and curing by ultraviolet light to obtain a waterproof protective layer;
s6, installing an inorganic heat-insulating layer: coating inorganic porous paint with the thickness of 1-3 mm on the back of the ceramic tile in the step S5, and then curing for 15-45 min at the temperature of 100-150 ℃ to obtain an inorganic heat-insulating layer;
step S7, decontamination treatment: and (5) performing decontamination treatment on the edge and the front of the heating ceramic tile obtained in the step S6 to obtain the low-voltage heating ceramic tile.
In the preparation method of the low-voltage heating ceramic tile, the step S2 further includes preparation of aqueous graphene slurry, specifically including: the components in the aqueous graphene slurry are uniformly mixed according to the proportion, and then the mixture is placed in a sand mill to be dispersed for 60-120 min at the rotating linear speed of 5-20 m/s, so that the aqueous graphene slurry with the viscosity of 100-320 cps is obtained.
Has the advantages that:
the invention provides a low-voltage heating ceramic tile and a preparation method thereof, wherein a heating film layer, an electrode layer, a waterproof protective layer and an inorganic heat-insulating layer are arranged on the back surface of a ceramic tile substrate, so that the ceramic tile has the characteristics of lower working voltage, safety, low energy consumption, thin thickness and good heat-insulating effect, and compared with the prior art, the ceramic tile has the following beneficial effects:
(1) the aqueous graphene slurry is prepared by adopting an alcohol dispersant, a silane coupling agent binder, few-layer graphene and water under the condition of high-energy ball milling, and has the advantages of uniform dispersion, strong adhesion after film formation, low film resistance, high film thermal conductivity and the like, so that the heating ceramic tile can realize the heating effect under low pressure (less than 36V);
(2) the inorganic heat-insulating layer is prepared from gas-phase silicon oxide and hollow microspheres, has the characteristics of good flame-retardant effect, low heat conductivity, light weight and the like, has excellent heat-insulating effect even if the thickness of the heat-insulating layer is thinner (less than 3mm), and has better weather resistance and long service life because the inorganic heat-insulating layer is made of inorganic materials and is not easy to age or lose efficacy.
(3) The waterproof protective layer adopts the photo-curing resin, not only has the effect of rapid film formation, but also is tightly combined with the heating film layer and the electrode layer, and has excellent waterproof performance.
(4) The low-voltage heating ceramic tile is obtained by curing the heating film layer, the electrode layer, the waterproof protective layer and the inorganic insulating layer which are coating layers, and the layers are tightly bonded, so that the low-voltage heating ceramic tile has the advantages of thin overall thickness, low working voltage, uniform heating, excellent flame retardant property, safety, reliability, long service life and the like.
Drawings
FIG. 1 is a schematic structural diagram of a side surface of a low-voltage heating ceramic tile provided by the present invention;
fig. 2 is a schematic structural diagram of an electrode layer.
Detailed Description
The invention provides a low-voltage heating ceramic tile and a preparation method thereof, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail below by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the invention provides a low-voltage heating ceramic tile, which comprises a ceramic tile substrate layer 1, a heating film layer 2, an electrode layer 3, a waterproof protective layer 4 and an inorganic heat-insulating layer 5, which are sequentially arranged from top to bottom, wherein the ceramic tile substrate layer 1 comprises one of a rock plate, a thin plate, a polished brick, a glazed brick and an antique brick, the heating film layer is a water-based graphene coating, the electrode layer is a metal conductive coating, the waterproof protective layer is a light-cured resin coating, and the inorganic heat-insulating layer is an inorganic porous coating.
In the low-voltage heating ceramic tile with the structure, the aqueous graphene coating is formed by curing aqueous graphene slurry, and the aqueous graphene slurry comprises the following components in percentage by mass: 3.0-6.2% of graphene, 0.2-1.5% of dispersant, 0.5-1.5% of binder and 91.0-96% of purified water. The components in the ratio are mixed and ground by a sand mill to obtain the water-based graphene slurry with the viscosity of 100-32 cps, and the water-based graphene slurry is coated or sprayed on a ceramic substrate and thermally cured to obtain the heating film layer with low resistance and strong electric and heat conductivity.
Specifically, in the aqueous graphene slurry, the graphene is a typical two-dimensional nanomaterial, has a large thickness-diameter ratio and a high specific surface area, and has 3 to 10 layers, the specific surface area being 400 to 2000m2The conductive material has excellent heat conducting and electric conducting capacity.
Specifically, in the aqueous graphene slurry, the dispersant comprises one of polyethylene glycol, fatty alcohol-polyoxyethylene, glycol ester and glyceryl monostearate, and the dispersant is an alcohol nonionic dispersant, so that the aggregated few-layer graphene in water can be stripped and depolymerized to form uniform few-layer graphene slurry, and thus the heat conducting and electric conducting capabilities of the heating film layer are uniform.
Specifically, in the aqueous graphene slurry, the binder comprises one of silane coupling agents KH-540, KH-560, KH-570, KH-792 and Si-602, the silane coupling agent can improve the binding force of graphene between film layers after the graphene slurry is dried, and silanol formed by hydrolysis of silane in the silane coupling agent and a tile surface group undergo a dehydration reaction and undergo chemical bond bonding, so that the graphene has a low resistance value and a good interface binding force after film formation.
Specifically, in the low-voltage heating ceramic tile, the electrode layer is a metal conductive coating, the metal conductive coating comprises one of a conductive silver paste coating or a conductive copper paste coating, the metal conductive coating is coated or screen-printed on the back of the ceramic tile, and the electrode layer with the conductive performance can be obtained after thermosetting. It should be noted that the conductive silver paste and the conductive copper paste are commercially available products, and in the present invention, the conductive silver paste is 01L-2200 low temperature silver paste provided by shenzhen seja electronic paste limited, and the conductive copper paste is COP-300 type conductive copper paste provided by shenzhen shengtai feng science and technology limited.
Specifically, in the low-voltage heating ceramic tile, the light-cured resin coating is formed by curing light-cured resin, and the light-cured resin comprises the following components in parts by weight: 8-12 parts of epoxy acrylate prepolymer, 8-12 parts of acrylic acid monomer, 4-6 parts of sodium acrylate and 0.5-0.7 part of photoinitiator. The epoxy acrylate prepolymer of the light-cured resin has-OH and-CH2-CH＝CH2The prepolymer is changed from a ground state to an excited state under the radiation of ultraviolet laser through a photoinitiator, the excited state generates active free radicals in a chain scission mode, the prepolymer and the active monomers are initiated to carry out polymerization reaction, and the epoxy acrylic resin is promoted to be cured on the graphene film layer and the electrode layer to form a compact waterproof layer. In the specific implementation process, the components are stirred and mixed uniformly, then the mixture is uniformly coated on the back of the ceramic tile, and the waterproof protective layer can be obtained after ultraviolet curing.
Specifically, in the low-voltage heating ceramic tile, the inorganic insulating layer is formed by curing an inorganic porous coating, and the inorganic porous coating comprises the following components in percentage by mass: 20.0-25.0% of fumed silica, 8.0-15.0% of hollow microspheres, KH-5700.5-1.5% of silane coupling agent and 60.0-70.0% of purified water. The inorganic porous coating is prepared from gas-phase silicon oxide and hollow microspheres, has the characteristics of good flame retardant effect, low thermal conductivity, lightness, thinness and the like, and can obtain excellent heat preservation effect even if a thin (less than 3mm) layer of inorganic porous coating is coated on the back of a ceramic tile. In the inorganic porous coating with the ratio, as silanol formed by hydrolysis of silane of the silane coupling agent KH-570 can generate dehydration reaction with surface hydroxyl groups of aerogel and cenospheres in the heating process to form chemical bond connection, white carbon black and cenospheres are tightly connected together to endow the formed film with higher strength, and meanwhile, the gas-phase white carbon black and the cenospheres contain a large amount of mesopores, and the fine holes can effectively prevent heat transfer, so that the formed film has excellent heat insulation effect. In the specific implementation process, all components in the inorganic porous coating are uniformly mixed in a high-speed shearing machine to obtain inorganic porous coating slurry with the viscosity of 100-320 cps, the inorganic porous coating slurry is coated on the back of the ceramic tile, and the inorganic heat-insulating layer with excellent heat-insulating effect can be obtained through heating and curing.
The preparation method of the low-voltage heating ceramic tile comprises the following steps:
step S1, ceramic tile matrix pretreatment: adhering four side surfaces and two opposite edges of the back surface of the ceramic tile substrate by using adhesive tapes, wherein the width of the adhesive tapes adhered to the edges of the back surface of the ceramic tile is 15 mm;
s2, installing a heating film layer: uniformly mixing the components in the aqueous graphene slurry according to a ratio, placing the mixture in a sand mill to disperse for 60-120 min at a rotation linear speed of 5-20 m/s to obtain an aqueous graphene slurry with the viscosity of 100-320 cps, and then pouring the aqueous graphene slurry in a bell jar manner according to the proportion of 180-800 g/m2Uniformly spraying the coating on the back of the ceramic tile, baking at 100-150 ℃ for 15-45 min, and drying and curing to obtain the heating film layer.
S3, mounting an electrode layer: and tearing off the adhesive tape at the edge of the back of the ceramic tile, printing the metal conductive paste on the back of the ceramic tile obtained in the step S2 in a screen printing mode, and drying at 120 ℃ to obtain the electrode layer with the line width of the conductive electrode being 10 mm. The conductive electrode in the electrode layer can be a plurality of parallel and communicated lines with a certain width (as shown in fig. 2), and after being electrified, the heating film layer can be electrified and heated.
S4, welding a waterproof joint: and respectively welding two electrodes of the waterproof joint with the thickness of 3mm at the positive end and the negative end of the conductive electrode in the step S3. The waterproof connector is connected with a power supply through a lead, so that a passage is formed between the waterproof connector and the electrode layer and between the waterproof connector and the power supply.
S5, installing a waterproof protective layer: taking the components in the light-cured resin according to the proportion, uniformly stirring, and then mixing according to the proportion of 50-150 g/m2And (4) uniformly coating the amount of the water-proof protective layer on the back surface of the ceramic tile obtained in the step S4, and then placing the ceramic tile in an ultraviolet curing box with the power of 800-1000W for curing for 5-15 min to obtain the ceramic tile with the water-proof protective layer.
S6, installing an inorganic heat-insulating layer: and (4) taking the components in the inorganic porous coating according to the proportion, uniformly mixing the components through a high-speed shearing machine to obtain the inorganic porous coating with the viscosity of 100-320 cps, coating the inorganic porous coating on the back of the ceramic tile in the step S5 to obtain the coating with the thickness of 1-3 mm, and curing for 15-45 min at the temperature of 100-150 ℃ to obtain the ceramic tile containing the inorganic heat-insulating layer.
Step S7, decontamination treatment: and (5) performing decontamination treatment on the edge and the front of the heating ceramic tile obtained in the step S6 to obtain the low-voltage heating ceramic tile.
By the preparation method, the heating ceramic tile with lower heating voltage can be obtained, and the whole ceramic tile is thin in thickness, good in heat preservation effect and weather resistance, safe, reliable and energy-saving.
Example 1
The utility model provides a low voltage pottery brick that generates heat, includes ceramic tile base member layer, the rete that generates heat, electrode layer, waterproof layer, the inorganic heat preservation that sets gradually from last to down.
The ceramic tile substrate is a glazed tile, the thickness of the ceramic tile substrate is 10.0mm, the length of the ceramic tile substrate is 800mm, and the width of the ceramic tile substrate is 800 mm.
The heating film layer is formed by curing water-based graphene slurry, and the water-based graphene slurry comprises the following components in percentage by mass: 3.3% of graphene, 0.2% of polyethylene glycol, KH-5400.5% and 96% of purified water. The number of graphene layers is 3-10, and the specific surface area is 400-2000 m2Graphene per gram.
The electrode layer is formed by solidifying conductive copper paste, and the conductive copper paste is COP-300 type conductive copper paste provided by Shenzhen Shengtian Toyobo science and technology Limited.
The waterproof protective layer is formed by curing light-cured resin, and the light-cured resin comprises the following components in parts by weight: 8 parts of epoxy acrylate prepolymer, 8 parts of acrylic acid monomer, 4 parts of sodium acrylate and 0.5 part of photoinitiator.
The inorganic heat-insulating layer is formed by curing inorganic porous coating, and the inorganic porous coating comprises the following components in percentage by mass: 21.5% of fumed silica, 8.0% of hollow microspheres, KH-5700.5% of silane coupling agent and 70.0% of purified water.
The preparation method of the low-voltage heating ceramic tile specifically comprises the following steps:
step S1, ceramic tile matrix pretreatment: adhering four side surfaces and two opposite edges of the back surface of the ceramic tile substrate by using adhesive tapes, wherein the width of the adhesive tapes adhered to the edges of the back surface of the ceramic tile substrate is 15 mm;
s2, installing a heating film layer: uniformly mixing the components in the aqueous graphene slurry according to the proportion, placing the mixture into a sand mill to disperse for 120min at a rotation linear speed of 5m/s to obtain aqueous graphene slurry with the viscosity of 100cps, and then pouring the aqueous graphene slurry according to the proportion of 800g/m in a bell jar slurry pouring mode2Uniformly spraying the mixture on the back of the ceramic tile, baking the ceramic tile for 15min at 150 ℃, and drying and curing to obtain a heating film layer;
s3, mounting an electrode layer: and tearing off the adhesive tape at the edge of the back of the ceramic tile substrate, printing conductive copper paste on the back of the ceramic tile obtained in the step S2 in a screen printing mode, and drying at 120 ℃ to obtain the electrode layer with the line width of the conductive electrode being 10 mm.
S4, welding a waterproof joint: and respectively welding two electrodes of the waterproof joint with the thickness of 3mm at the positive end and the negative end of the conductive electrode in the step S3.
S5, installing a waterproof protective layer: taking the components in the light-cured resin according to the proportion, stirring uniformly, and then weighing 50g/m2Is uniformly coated on the obtained product of step S4And (3) placing the back surface of the ceramic tile in an ultraviolet curing box with the power of 800W for curing for 12min to obtain the waterproof protective layer.
S6, installing an inorganic heat-insulating layer: and (3) taking the components in the inorganic porous coating according to the proportion, uniformly mixing the components through a high-speed shearing machine to obtain the inorganic porous coating with the viscosity of 100cps, coating the inorganic porous coating on the back surface of the ceramic tile substrate in the step S5 to the thickness of 3mm, and curing for 15min at the temperature of 150 ℃ to obtain the inorganic heat-insulating layer.
Step S7, decontamination treatment: and (5) performing decontamination treatment on the edge and the front of the heating ceramic tile obtained in the step S6 to obtain the low-voltage heating ceramic tile.
Example 2
The utility model provides a low voltage pottery brick that generates heat, includes ceramic tile base member layer, the rete that generates heat, electrode layer, waterproof layer, the inorganic heat preservation that sets gradually from last to down.
The ceramic tile substrate is a polished tile, the thickness of the ceramic tile substrate is 10.0mm, the length of the ceramic tile substrate is 800mm, and the width of the ceramic tile substrate is 800 mm.
The heating film layer is formed by curing water-based graphene slurry, and the water-based graphene slurry comprises the following components in percentage by mass: 6.0% of graphene, 1.5% of fatty alcohol-polyoxyethylene, KH-5601.5% and 91.0% of purified water. The number of graphene layers is 3-10, and the specific surface area is 400-2000 m2Graphene per gram.
The electrode layer is formed by solidifying conductive silver paste which is 01L-2200 low-temperature silver paste provided by Shenzhen Spanish electronic paste Limited.
The waterproof protective layer is formed by curing light-cured resin, and the light-cured resin comprises the following components in parts by weight: 12 parts of epoxy acrylate prepolymer, 12 parts of acrylic monomer, 6 parts of sodium acrylate and 0.7 part of photoinitiator.
The inorganic heat-insulating layer is formed by curing inorganic porous coating, and the inorganic porous coating comprises the following components in percentage by mass: 23.5% of fumed silica, 15.0% of hollow microspheres, KH-5701.5% of silane coupling agent and 60.0% of purified water.
The preparation method of the low-voltage heating ceramic tile specifically comprises the following steps:
step S1, ceramic tile matrix pretreatment: adhering four side surfaces and two opposite edges of the back surface of the ceramic tile substrate by using adhesive tapes, wherein the width of the adhesive tapes adhered to the edges of the back surface of the ceramic tile substrate is 15 mm;
s2, installing a heating film layer: the preparation method comprises the steps of taking all components in the aqueous graphene slurry according to a ratio, uniformly mixing, placing the mixture in a sand mill, dispersing for 60min at a rotation linear speed of 20m/s to obtain an aqueous graphene slurry with the viscosity of 320cps, and then pouring the aqueous graphene slurry according to a bell jar spraying mode to obtain the aqueous graphene slurry with the viscosity of 180g/m2Uniformly spraying the mixture on the back of the ceramic tile, baking the ceramic tile at 100 ℃ for 45min, and drying and curing to obtain a heating film layer;
s3, mounting an electrode layer: and tearing off the adhesive tape on the edge of the back of the ceramic tile substrate, printing conductive silver paste on the back of the ceramic tile obtained in the step S2 in a screen printing mode, and drying at 120 ℃ to obtain the electrode layer with the line width of the conductive electrode being 10 mm.
S4, welding a waterproof joint: and respectively welding two electrodes of the waterproof joint with the thickness of 3mm at the positive end and the negative end of the conductive electrode in the step S3.
S5, installing a waterproof protective layer: taking the components in the light-cured resin according to the proportion, stirring uniformly, and then weighing 150g/m2The amount of the water-proof protective layer is uniformly coated on the back surface of the ceramic tile substrate obtained in the step S4, and then the ceramic tile substrate is placed in an ultraviolet curing box with the power of 1000W for curing for 5min to obtain the ceramic tile with the water-proof protective layer.
S6, installing an inorganic heat-insulating layer: and (3) taking the components in the inorganic porous coating according to the proportion, uniformly mixing the components through a high-speed shearing machine to obtain the inorganic porous coating with the viscosity of 320cps, coating the inorganic porous coating on the back surface of the ceramic tile in the step S5 to the thickness of 1mm, and curing for 45min at the temperature of 100 ℃ to obtain the ceramic tile containing the inorganic heat-insulating layer.
Step S7, decontamination treatment: and (5) performing decontamination treatment on the edge and the front of the heating ceramic tile obtained in the step S6 to obtain the low-voltage heating ceramic tile.
Example 3
The utility model provides a low voltage pottery brick that generates heat, includes ceramic tile base member layer, the rete that generates heat, electrode layer, waterproof layer, the inorganic heat preservation that sets gradually from last to down.
The ceramic tile substrate is a thin plate, the thickness of the ceramic tile substrate is 5.5mm, the length of the ceramic tile substrate is 600mm, and the width of the ceramic tile substrate is 900 mm.
The heating film layer is formed by solidifying aqueous graphene coating slurry, and the aqueous graphene slurry comprises the following components in percentage by mass: 6.2% of graphene, 1.0% of glycol ester, KH-5701.0% and 91.8% of purified water. The number of graphene layers is 3-10, and the specific surface area is 400-2000 m2Graphene per gram.
The electrode layer is formed by solidifying conductive copper paste, and the conductive copper paste is COP-300 type conductive copper paste provided by Shenzhen Shengtian Toyobo science and technology Limited.
The waterproof protective layer is formed by curing light-cured resin, and the light-cured resin comprises the following components in parts by weight: 10 parts of epoxy acrylate prepolymer, 10 parts of acrylic acid monomer, 5 parts of sodium acrylate and 0.6 part of photoinitiator.
The inorganic heat-insulating layer is formed by curing inorganic porous coating, and the inorganic porous coating comprises the following components in percentage by mass: 20.0% of fumed silica, 12% of hollow microspheres, KH-5701.0% of silane coupling agent and 67.0% of purified water.
The preparation method of the low-voltage heating ceramic tile specifically comprises the following steps:
step S1, ceramic tile matrix pretreatment: adhering four side surfaces and two opposite edges of the back surface of the ceramic tile substrate by using adhesive tapes, wherein the width of the adhesive tapes adhered to the edges of the back surface of the ceramic tile substrate is 15 mm;
s2, installing a heating film layer: the preparation method comprises the steps of taking all components in the aqueous graphene slurry according to a ratio, uniformly mixing, placing the mixture in a sand mill, dispersing for 90min at a rotation linear speed of 15m/s to obtain aqueous graphene slurry with the viscosity of 220cps, and then pouring the aqueous graphene slurry according to the proportion of 500g/m in a bell jar slurry pouring mode2Uniformly spraying the mixture on the back of the ceramic tile, baking the ceramic tile at 120 ℃ for 30min, and drying and curing to obtain a heating film layer;
s3, mounting an electrode layer: and tearing off the adhesive tape on the edge of the back of the ceramic tile substrate, printing the conductive copper paste on the back of the ceramic tile obtained in the step S2 in a screen printing mode, and drying at 120 ℃ to obtain the electrode layer with the line width of the conductive electrode being 10 mm.
S4, welding a waterproof joint: and respectively welding two electrodes of the waterproof joint with the thickness of 3mm at the positive end and the negative end of the conductive electrode in the step S3.
S5, installing a waterproof protective layer: taking the components of the photo-curing resin waterproof coating according to the proportion, stirring the components evenly and then stirring the components according to the proportion of 120g/m2The amount of the water-proof protective layer is uniformly coated on the back surface of the ceramic tile substrate obtained in the step S4, and then the ceramic tile substrate is placed in an ultraviolet curing box with the power of 900W for curing for 10min to obtain the ceramic tile with the water-proof protective layer.
S6, installing an inorganic heat-insulating layer: and (3) taking the components in the inorganic porous coating according to the proportion, uniformly mixing the components through a high-speed shearing machine to obtain the inorganic porous coating with the viscosity of 200cps, coating the inorganic porous coating on the back surface of the ceramic tile substrate in the step S5 to the thickness of 2mm, and curing for 30min at the temperature of 130 ℃ to obtain the ceramic tile containing the inorganic heat-insulating layer.
Step S7, decontamination treatment: and (5) performing decontamination treatment on the edge and the front of the heating ceramic tile obtained in the step S6 to obtain the low-voltage heating ceramic tile.
Example 4
The utility model provides a low voltage pottery brick that generates heat, includes ceramic tile base member layer, the rete that generates heat, electrode layer, waterproof layer, the inorganic heat preservation that sets gradually from last to down.
The ceramic tile substrate is a rock plate, the thickness of the ceramic tile substrate is 12.0mm, the length of the ceramic tile substrate is 2400mm, and the width of the ceramic tile substrate is 1200 mm.
The heating film layer is formed by solidifying aqueous graphene coating slurry, and the aqueous graphene slurry comprises the following components in percentage by mass: 3.0% of graphene, 0.5% of glyceryl monostearate, KH-7920.8% and 95.7% of purified water. The number of graphene layers is 3-10, and the specific surface area is 400-2000 m2Graphene per gram.
The electrode layer is conductive copper paste, and the conductive copper paste is COP-300 type conductive copper paste provided by Shengtian Toyobo science and technology Limited company in Shenzhen.
The waterproof protective layer is formed by curing light-cured resin, and the light-cured resin comprises the following components in parts by weight: 9 parts of epoxy acrylate prepolymer, 11 parts of acrylic monomer, 5 parts of sodium acrylate and 0.6 part of photoinitiator.
The inorganic heat-insulating layer is formed by curing inorganic porous coating, and the inorganic porous coating comprises the following components in percentage by mass: 25.0% of fumed silica, 13.0% of hollow microspheres, KH-5701.4% of silane coupling agent and 60.6% of purified water.
The preparation method of the low-voltage heating ceramic tile specifically comprises the following steps:
step S1, ceramic tile matrix pretreatment: adhering four side surfaces and two opposite edges of the back surface of the ceramic tile substrate by using adhesive tapes, wherein the width of the adhesive tapes adhered to the edges of the back surface of the ceramic tile substrate is 15 mm;
s2, installing a heating film layer: the preparation method comprises the steps of taking all components in the aqueous graphene slurry according to a ratio, uniformly mixing, placing the mixture in a sand mill, dispersing for 80min at a rotation linear speed of 13m/s to obtain an aqueous graphene slurry with the viscosity of 110cps, and then pouring the aqueous graphene slurry according to 700g/m in a bell jar slurry pouring mode2Uniformly spraying the mixture on the back of the ceramic tile, baking the ceramic tile at 140 ℃ for 35min, and drying and curing to obtain a heating film layer;
s3, mounting an electrode layer: and tearing off the adhesive tape on the edge of the back of the ceramic tile substrate, printing the conductive copper paste on the back of the ceramic tile obtained in the step S2 in a screen printing mode, and drying at 120 ℃ to obtain the electrode layer with the line width of the conductive electrode being 10 mm.
S4, welding a waterproof joint: and respectively welding two electrodes of the waterproof joint with the thickness of 3mm at the positive end and the negative end of the conductive electrode in the step S3.
S5, installing a waterproof protective layer: taking the components in the light-cured resin according to the proportion, stirring uniformly, and then weighing 90g/m2The amount of the water-proof protective layer is uniformly coated on the back surface of the ceramic tile obtained in the step S4, and then the ceramic tile is placed in an ultraviolet curing box with the power of 1000W for curing for 8min to obtain the ceramic tile with the water-proof protective layer.
S6, installing an inorganic heat-insulating layer: and (3) taking the components in the inorganic porous coating according to the proportion, uniformly mixing the components through a high-speed shearing machine to obtain the inorganic porous coating with the viscosity of 310cps, coating the inorganic porous coating on the back surface of the ceramic tile in the step S5 to the thickness of 2mm, and curing for 25min at the temperature of 140 ℃ to obtain the ceramic tile containing the inorganic heat-insulating layer.
Step S7, decontamination treatment: and (5) performing decontamination treatment on the edge and the front of the heating ceramic tile obtained in the step S6 to obtain the low-voltage heating ceramic tile.
Example 5
The utility model provides a low voltage pottery brick that generates heat, includes ceramic tile base member layer, the rete that generates heat, electrode layer, waterproof layer, the inorganic heat preservation that sets gradually from last to down.
The ceramic tile base member is archaize brick, and its thickness is 12.0mm, and length is 600mm, and the width is 600 mm.
The heating film layer is formed by solidifying aqueous graphene coating slurry, and the aqueous graphene slurry comprises the following components in percentage by mass: 5.5% of graphene, 0.9% of polyethylene glycol, Si-6021.1% and 92.5% of purified water. The number of graphene layers is 3-10, and the specific surface area is 400-2000 m2Graphene per gram.
The electrode layer is formed by solidifying conductive copper paste, and the conductive copper paste is COP-300 type conductive copper paste provided by Shenzhen Shengtian Toyobo science and technology Limited.
The waterproof protective layer is formed by curing light-cured resin, and the light-cured resin comprises the following components in parts by weight: 11 parts of epoxy acrylate prepolymer, 9 parts of acrylic monomer, 5 parts of sodium acrylate and 0.7 part of photoinitiator.
The inorganic heat-insulating layer is formed by curing inorganic porous coating, and the inorganic porous coating comprises the following components in percentage by mass: 22.0% of fumed silica, 11.0% of hollow microspheres, KH-5701.1% of silane coupling agent and 65.9% of purified water.
The preparation method of the low-voltage heating ceramic tile specifically comprises the following steps:
step S1, ceramic tile matrix pretreatment: adhering four side surfaces and two opposite edges of the back surface of the ceramic tile substrate by using adhesive tapes, wherein the width of the adhesive tapes adhered to the edges of the back surface of the ceramic tile substrate is 15 mm;
s2, installing a heating film layer: the preparation method comprises the steps of taking all components in the aqueous graphene slurry according to a ratio, uniformly mixing, placing the mixture in a sand mill, dispersing for 100min at a rotation linear speed of 18m/s to obtain an aqueous graphene slurry with the viscosity of 280cps, and then pouring the aqueous graphene slurry according to the ratio of 600g/m in a bell jar slurry pouring mode2Uniformly spraying the mixture on the back of the ceramic tile, baking the ceramic tile at 130 ℃ for 40min, and drying and curing to obtain a heating film layer;
s3, mounting an electrode layer: and tearing off the adhesive tape on the edge of the back of the ceramic tile substrate, printing the conductive copper paste on the back of the ceramic tile obtained in the step S2 in a screen printing mode, and drying at 120 ℃ to obtain the electrode layer with the line width of the conductive electrode being 10 mm.
S4, welding a waterproof joint: and respectively welding two electrodes of the waterproof joint with the thickness of 3mm at the positive end and the negative end of the conductive electrode in the step S3.
S5, installing a waterproof protective layer: taking the components in the light-cured resin according to the proportion, stirring uniformly, and then weighing 70g/m2The amount of the water-proof protective layer is uniformly coated on the back surface of the ceramic tile obtained in the step S4, and then the ceramic tile is placed in an ultraviolet curing box with the power of 800W for curing for 15min to obtain the ceramic tile with the water-proof protective layer.
S6, installing an inorganic heat-insulating layer: and (3) taking the components in the inorganic porous coating according to the proportion, uniformly mixing the components through a high-speed shearing machine to obtain the inorganic porous coating with the viscosity of 180cps, coating the inorganic porous coating on the back surface of the ceramic tile substrate in the step S5 to the thickness of 2mm, and curing for 25min at the temperature of 130 ℃ to obtain the ceramic tile containing the inorganic heat-insulating layer.
Step S7, decontamination treatment: and (5) performing decontamination treatment on the edge and the front of the heating ceramic tile obtained in the step S6 to obtain the low-voltage heating ceramic tile.
The low-voltage heating ceramic tile prepared in the above embodiments 1 to 5 has the advantages that the heating film layer has small resistance and high heat conversion rate, and a good heating effect can be achieved at a low working voltage (<36V), so that not only energy is saved, but also safety and reliability are achieved, in addition, the electrode layer, the waterproof protective layer and the heat insulation layer are all thin coating layers, so that the thickness of the whole tile is thin, the tile is convenient to lay and paste, the appearance effect is good, meanwhile, the heat insulation layer is made of inorganic materials, has good weather resistance and flame retardance, is not easy to age or lose efficacy, and has long service life and heat insulation effect.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (10)
1. The utility model provides a low-voltage ceramic brick that generates heat which comprises from last to the ceramic tile base member layer that sets gradually down, generate heat rete, electrode layer, waterproof layer, inorganic heat preservation, the rete that generates heat is waterborne graphene coating, the electrode layer is metal conductive coating, waterproof layer is the photocuring resin coating, inorganic heat preservation is inorganic porous coating.
2. The low-voltage heating ceramic tile as claimed in claim 1, wherein the aqueous graphene coating layer is formed by curing an aqueous graphene slurry, and the aqueous graphene slurry comprises, by mass: 3.0-6.2% of graphene, 0.2-1.5% of dispersant, 0.5-1.5% of binder and 91.0-96% of purified water.
3. The low-voltage heating ceramic tile as claimed in claim 2, wherein the number of graphene layers is 3-10, and the specific surface area is 400-2000 m2/g。
4. A low voltage exothermic ceramic tile according to claim 2, wherein the dispersing agent comprises one of polyethylene glycol, fatty alcohol polyoxyethylene, glycol ester, glyceryl monostearate.
5. The low voltage exothermic ceramic tile according to claim 2, wherein the binder comprises one of silane coupling agents KH-540, KH-560, KH-570, KH-792 and Si-602.
6. The low voltage exothermic ceramic tile of claim 1, wherein the metallic conductive coating comprises one of a conductive silver paste coating or a conductive copper paste coating.
7. The low-voltage exothermic ceramic tile according to claim 1, wherein the light-curable resin coating layer is formed by curing light-curable resin, and the light-curable resin comprises, in parts by weight: 8-12 parts of epoxy acrylate prepolymer, 8-12 parts of acrylic acid monomer, 4-6 parts of sodium acrylate and 0.5-0.7 part of photoinitiator.
8. The low-voltage heating ceramic tile as claimed in claim 1, wherein the inorganic porous coating is formed by curing an inorganic porous coating, and the inorganic porous coating comprises, by mass: 20.0-25.0% of fumed silica, 8.0-15.0% of hollow microspheres, KH-5700.5-1.5% of silane coupling agent and 60.0-70.0% of purified water.
9. Method for producing low-voltage exothermic ceramic tiles according to any of claims 1 to 8, characterized in that it comprises the following steps:
step S1, ceramic tile matrix pretreatment: adhering four side surfaces and two opposite edges of the back surface of the ceramic tile substrate by using adhesive tapes, wherein the width of the adhesive tapes adhered to the edges of the back surface of the ceramic tile is 15 mm;
s2, installing a heating film layer: through a bell jar slurry spraying mode, the water-based graphene slurry is sprayed according to the proportion of 180-800 g/m2Uniformly spraying the coating on the back of the ceramic tile, baking at 100-150 ℃ for 15-45 min, and drying and curing to obtain a heating film layer;
s3, mounting an electrode layer: tearing off the two edge adhesive tapes on the back of the ceramic tile, then printing metal conductive paste on the back of the ceramic tile obtained in the step S2 in a screen printing mode, and drying at 120 ℃ to obtain an electrode layer with the line width of a conductive electrode being 10 mm;
s4, welding a waterproof joint: respectively welding two electrodes of a waterproof joint with the thickness of 3mm at the positive end and the negative end of the conductive electrode in the step S3;
s5, installing a waterproof protective layer: the back surface of the ceramic tile obtained in step S4 is 50-150 g/m2Uniformly coating photo-curing resin, and then irradiating and curing by ultraviolet light to obtain a waterproof protective layer;
s6, installing an inorganic heat-insulating layer: coating inorganic porous paint with the thickness of 1-3 mm on the back of the ceramic tile in the step S5, and then curing for 15-45 min at the temperature of 100-150 ℃ to obtain an inorganic heat-insulating layer;
step S7, decontamination treatment: and (5) performing decontamination treatment on the edge and the front of the heating ceramic tile obtained in the step S6 to obtain the low-voltage heating ceramic tile.
10. The method for preparing a low-voltage exothermic ceramic tile according to claim 9, wherein the step S2 further comprises preparing an aqueous graphene slurry, specifically comprising: the components in the aqueous graphene slurry are uniformly mixed according to the proportion, and then the mixture is placed in a sand mill to be dispersed for 60-120 min at the rotating linear speed of 5-20 m/s, so that the aqueous graphene slurry with the viscosity of 100-320 cps is obtained.
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