CN112126345A - Far infrared absorption coating, pot using far infrared absorption coating and preparation method - Google Patents

Far infrared absorption coating, pot using far infrared absorption coating and preparation method Download PDF

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Publication number
CN112126345A
CN112126345A CN202010885256.0A CN202010885256A CN112126345A CN 112126345 A CN112126345 A CN 112126345A CN 202010885256 A CN202010885256 A CN 202010885256A CN 112126345 A CN112126345 A CN 112126345A
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Prior art keywords
far infrared
infrared absorption
absorption coating
pot
resin
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CN202010885256.0A
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Chinese (zh)
Inventor
王�琦
李成信
覃丽明
潘叶江
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Vatti Co Ltd
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Vatti Co Ltd
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Priority to CN202010885256.0A priority Critical patent/CN112126345A/en
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
    • 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
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/32—Radiation-absorbing paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • 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
    • B05D2518/00—Other type of polymers
    • B05D2518/10—Silicon-containing polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The invention discloses a far infrared absorption coating, a pot using the same and a preparation method, wherein the far infrared absorption coating comprises the following components in percentage by mass: 50-66% of organic silicon resin, 3-8% of amino resin, 4-10% of epoxy resin, 1-3% of graphene, 0.5-1.8% of silicon carbide whisker, 2-5% of pigment and filler, 0.5-2% of dispersing agent, 1-2.8% of flatting agent and 10-30% of solvent. According to the invention, the far infrared absorption coating composed of the organic silicon resin, the amino resin, the epoxy resin, the graphene, the silicon carbide whiskers, the pigment and filler, the dispersant, the leveling agent and the solvent is selected, so that when the coating is coated on the existing pot body by an air spraying process technology, the heat transfer efficiency can be effectively improved by at least 17.8%, thus the purpose of saving energy is realized, the cooking time is also saved, and the cost performance and market competitiveness of the pot are improved.

Description

Far infrared absorption coating, pot using far infrared absorption coating and preparation method
Technical Field
The invention belongs to the technical field of cookware, and particularly relates to a far infrared absorption coating, a coating, cookware using the coating and a preparation method of the cookware.
Background
The existing energy-gathering stove or induction cooker rarely depends on infrared radiation energy to heat a cooker, and as is known, the thermal efficiency after the infrared thermal radiation technology is adopted is greatly higher than that of the traditional gas stove, so that the effects of environmental protection and energy saving are achieved; however, at present, although a small part of energy-gathering stoves or induction cookers use infrared heat radiation technology, when the energy-gathering stoves or induction cookers are used for heating cookware, heat transfer is slow, and heat transfer efficiency is poor.
Disclosure of Invention
In view of the above, the main object of the present invention is to provide a far infrared absorbing coating with fast heat transfer and good heat transfer efficiency; .
The present invention also aims to provide a far infrared absorption coating;
the invention also aims to provide a pot with the coating, which solves the problems of slow heat transfer and poor heat transfer efficiency of pots in the prior art;
the invention also aims to provide a preparation method of the pot.
In order to achieve the purpose, the technical scheme of the invention is realized as follows: the far infrared absorption coating comprises the following components in percentage by mass:
50-66% of organic silicon resin, 3-8% of amino resin, 4-10% of epoxy resin, 1-3% of graphene, 0.5-1.8% of silicon carbide whisker, 2-5% of pigment and filler, 0.5-2% of dispersing agent, 1-2.8% of flatting agent and 10-30% of solvent.
Preferably, the silicone resin is at least one of methyl silicone resin and phenyl silicone resin.
Preferably, the amino resin is at least one of urea-formaldehyde resin, melamine-formaldehyde resin and polyamide polyamine epichlorohydrin resin.
Preferably, the pigment and filler is at least one of titanium dioxide, carbon black, iron oxide, zinc oxide and barium sulfate.
Preferably, the dispersant is a polyether siloxane copolymer, specifically: at least one of BYK-300, BYK-301 and BYK-345.
Preferably, the leveling agent is at least one of modified siloxane and acrylic acid.
Preferably, the solvent is a mixed solvent of PMA solvent and xylene.
The second technical scheme of the invention is realized as follows: a far infrared absorption coating is used for cookware and is made of the far infrared absorption coating.
The third technical scheme of the invention is realized as follows: a cookware comprises a cookware body and the far infrared absorption coating, wherein the far infrared absorption coating is at least coated on the bottom of the cookware body.
Preferably, the thickness of the far infrared absorption coating is 20-50 μm.
The fourth technical scheme of the invention is realized as follows: a preparation method of a pot is realized by the following steps:
s1, sequentially carrying out oil removal, sand blasting and cleaning on the bottom surface of the pot body to obtain the pot body after cleaning treatment;
and S2, forming a far infrared absorption coating on the bottom surface of the pot body subjected to the cleaning treatment obtained in the step S1 by adopting an air spraying process, and curing to obtain the pot.
Preferably, in S2, the spray pressure when the far infrared absorption coating is formed is 0.3 to 0.5 Mpa.
Preferably, in the step S2, the curing temperature is 220-280 ℃, and the curing time is 20-35 min.
Compared with the prior art, the far infrared absorption coating composed of the organic silicon resin, the amino resin, the epoxy resin, the graphene, the silicon carbide crystal whisker, the pigment and filler, the dispersant, the flatting agent and the solvent is selected, so that when the coating is coated on the existing cooker body 1 by the air spraying process technology, the heat transfer efficiency can be effectively improved by at least 17.8 percent, thereby not only realizing the purpose of saving energy, but also saving cooking time, and improving the cost performance, market competitiveness and experience of users of the cooker; in addition, the purpose of enhancing the heating effect or the heat transfer efficiency of the cookware body 1 by arranging the far infrared absorption coating on the outer side of the bottom of the cookware body is realized under the condition of not changing the overall structure of the system; in addition, the pot obtained by the invention has low cost, strong product competitiveness and good practicability, and is worthy of being widely popularized and used.
Drawings
Fig. 1 is a schematic view of a layered structure of a pot obtained in embodiments 1 to 5 of the present invention;
FIG. 2 is a diagram showing a state of use of the pot obtained in the embodiment 1-5 of the present invention;
fig. 3 is a flow chart of the preparation of the pot in the embodiment of the invention.
In the figure, 1 is a pot body, and 2 is a far infrared absorption coating.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying 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.
In the description of the present invention, it is to be understood that the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not mean that the device or member to which the present invention is directed must have a specific orientation or position, and thus, cannot be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The far infrared absorption coating provided by the embodiment of the invention comprises the following components in percentage by mass:
50-66% of organic silicon resin, 3-8% of amino resin, 4-10% of epoxy resin, 1-3% of graphene, 0.5-1.8% of silicon carbide whisker, 2-5% of pigment and filler, 0.5-2% of dispersing agent, 1-2.8% of flatting agent and 10-30% of solvent.
Wherein the organic silicon resin is at least one of methyl silicon resin and phenyl silicon resin; the amino resin is at least one of urea-formaldehyde resin, melamine formaldehyde resin and polyamide polyamine epichlorohydrin resin; the pigment and filler is at least one of titanium dioxide, carbon black, ferric oxide, zinc oxide and barium sulfate; the dispersant is polyether siloxane copolymer, and specifically comprises the following components: at least one of BYK-300, BYK-301 and BYK-345; the flatting agent is at least one of modified siloxane and acrylic acid; the solvent is a mixed solvent of PMA and xylene.
The embodiment of the invention also provides a far infrared absorption coating used for cookware, and the far infrared absorption coating is made of the far infrared absorption coating.
The embodiment of the invention also provides a cookware, which comprises a cookware body 1 and the far infrared absorption coating 2, wherein the far infrared absorption coating 2 is at least coated on the bottom of the cookware body 1.
Wherein, the thickness of the far infrared absorption coating is 20-50 μm.
The embodiment of the invention also provides a preparation method of the pot, which is realized by the following steps:
s1, sequentially carrying out oil removal, sand blasting and cleaning on the bottom surface of the pot body 1 to obtain a cleaned pot body;
s2, forming a far infrared absorption coating 2 on the bottom surface of the cleaned cookware body obtained in the step S1 by adopting an air spraying process, and curing at 220-280 ℃ for 20-35 min to obtain the cookware; wherein the spraying pressure when the far infrared absorption coating is formed is 0.3-0.5 Mpa.
After the scheme is adopted, the far infrared absorption coating composed of the organic silicon resin, the amino resin, the epoxy resin, the graphene, the silicon carbide crystal whisker, the pigment and filler, the dispersant, the flatting agent and the solvent is selected, so that when the coating is coated on the existing cooker body 1 by an air spraying process technology, the heat transfer efficiency can be effectively improved by at least 17.8 percent, the purpose of saving energy is realized, the cooking time is also saved, and the cost performance, the market competitiveness and the experience of a user of the cooker are improved; in addition, the purpose of enhancing the heating effect or the heat transfer efficiency of the cookware body 1 by arranging the far infrared absorption coating on the outer side of the bottom of the cookware body is realized under the condition of not changing the integral structure of the system.
The following are specific examples:
example 1
The far infrared absorption coating provided by the embodiment 1 of the invention comprises the following components in percentage by mass:
58% of methyl silicone resin, 5% of urea-formaldehyde resin, 7% of bisphenol A epoxy resin, 2% of graphene, 1.2% of silicon carbide whisker, 1% of titanium dioxide, 2% of carbon black, BYK-3001%, 1.8% of modified siloxane, PMA 12% and 9% of xylene.
The far infrared absorption coating provided by the embodiment 1 of the invention is used for cookware, and is formed by the far infrared absorption coating.
A cookware provided in embodiment 1 of the present invention, as shown in fig. 1, includes a cookware body 1 and the far infrared absorption coating 2, wherein the far infrared absorption coating 2 is at least coated on the bottom of the cookware body 1; and the thickness of the far infrared absorption coating is 35 μm.
The pot provided by the embodiment 1 of the invention is prepared by the following steps:
s1, sequentially carrying out oil removal, sand blasting and cleaning on the bottom surface of the cookware body 1 made of the aluminum alloy material to obtain a cookware body after cleaning treatment;
s2, forming a far infrared absorption coating 2 on the bottom surface of the cleaned cookware body obtained in the step S1 by adopting an air spraying process, and curing for 28min at 250 ℃ to obtain the cookware; wherein the spray pressure when forming the far infrared absorption coating is 0.4 Mpa.
Further, the thickness of the far-red coating layer 2 finally obtained was 35 μm.
Example 2
The far infrared absorption coating provided by the embodiment 2 of the invention comprises the following components in percentage by mass:
50% of methyl silicone resin, 8% of urea-formaldehyde resin, 4% of bisphenol A epoxy resin, 3% of graphene, 0.5% of silicon carbide whisker, 2% of titanium dioxide, 3% of carbon black, BYK-3000.5%, 2.8% of modified siloxane, PMA 15% and 11.2% of xylene.
The far infrared absorption coating provided by the embodiment 2 of the invention is used for cookware, and is formed by the far infrared absorption coating.
The cookware provided by the embodiment 2 of the invention comprises a cookware body 1 and the far infrared absorption coating 2, wherein the far infrared absorption coating 2 is at least coated on the bottom of the cookware body 1; and the thickness of the far infrared absorption coating is 20 μm.
The pot provided by the embodiment 2 of the invention is prepared by the following steps:
s1, sequentially carrying out oil removal, sand blasting and cleaning on the bottom surface of the cookware body 1 made of the aluminum alloy material to obtain a cookware body after cleaning treatment;
s2, forming a far infrared absorption coating 2 on the bottom surface of the cleaned cookware body obtained in the step S1 by adopting an air spraying process, and curing for 20min at 220 ℃ to obtain the cookware; wherein the spray pressure when forming the far infrared absorption coating is 0.3 Mpa.
Further, the thickness of the far-red coating layer 2 finally obtained was 20 μm.
Example 3
The far infrared absorption coating provided by the embodiment 3 of the invention comprises the following components in percentage by mass:
66% of methyl silicone resin, 3% of urea-formaldehyde resin, 10% of bisphenol A epoxy resin, 1% of graphene, 1.8% of silicon carbide whisker, 1% of titanium dioxide, 1% of carbon black, 1% of BYK-3002%, 1% of modified siloxane, 1% of PMA 5% and 8.2% of xylene.
The far infrared absorption coating provided by the embodiment 3 of the invention is used for cookware and is formed by the far infrared absorption coating.
The cookware provided by the embodiment 3 of the invention comprises a cookware body 1 and the far infrared absorption coating 2, wherein the far infrared absorption coating 2 is at least coated on the bottom of the cookware body 1; and the thickness of the far infrared absorption coating is 50 μm.
The pot provided by the embodiment 3 of the invention is prepared by the following steps:
s1, sequentially carrying out oil removal, sand blasting and cleaning on the bottom surface of the pot body 1 made of the tinplate material to obtain a cleaned pot body;
s2, forming a far infrared absorption coating 2 on the bottom surface of the pot body obtained in the S1 after cleaning treatment by adopting an air spraying process, and curing for 35min at 280 ℃ to obtain a pot; wherein the spray pressure when forming the far infrared absorption coating is 0.5 Mpa.
Further, the thickness of the finally obtained far-red coating layer 2 was 50 μm.
Example 4
The far infrared absorption coating provided by the embodiment 3 of the invention comprises the following components in percentage by mass:
55% of phenyl silicon resin, 5% of melamine formaldehyde resin, 10% of bisphenol A epoxy resin, 1% of graphene, 0.5% of silicon carbide whisker, 0.5% of iron oxide, 0.5% of carbon black, BYK-3010.5%, 1% of acrylic, 8% of PMA and 8% of xylene.
The far infrared absorption coating provided by the embodiment 4 of the invention is used for cookware and is formed by the far infrared absorption coating.
The cookware provided by the embodiment 4 of the invention comprises a cookware body 1 and the far infrared absorption coating 2, wherein the far infrared absorption coating 2 is at least coated on the bottom of the cookware body 1; and the thickness of the far infrared absorption coating is 35 μm.
The pot provided by the embodiment 4 of the invention is prepared by the following steps:
s1, sequentially carrying out oil removal, sand blasting and cleaning on the bottom surface of the cookware body 1 made of the aluminum alloy material to obtain a cookware body after cleaning treatment;
s2, forming a far infrared absorption coating 2 on the bottom surface of the cleaned cookware body obtained in the step S1 by adopting an air spraying process, and curing for 28min at 250 ℃ to obtain the cookware; wherein the spray pressure when forming the far infrared absorption coating is 0.4 Mpa.
Further, the thickness of the far-red coating layer 2 finally obtained was 35 μm.
Example 5
The far infrared absorption coating provided by the embodiment 5 of the invention comprises the following components in percentage by mass:
66% of methyl silicone resin, 3% of polyamide polyamine epoxy chloropropane resin, 10% of bisphenol A epoxy resin, 1% of graphene, 1.8% of silicon carbide whisker, 1% of barium sulfate, 1% of carbon black, BYK-3452%, 1% of modified siloxane, 5% of PMA and 8.2% of xylene.
The far infrared absorption coating provided by the embodiment 5 of the invention is used for cookware, and is formed by the far infrared absorption coating.
The cookware provided by the embodiment 5 of the invention comprises a cookware body 1 and the far infrared absorption coating 2, wherein the far infrared absorption coating 2 is at least coated on the bottom of the cookware body 1; and the thickness of the far infrared absorption coating is 50 μm.
The pot provided by the embodiment 5 of the invention is prepared by the following steps:
s1, sequentially carrying out oil removal, sand blasting and cleaning on the bottom surface of the pot body 1 made of the tinplate material to obtain a cleaned pot body;
s2, forming a far infrared absorption coating 2 on the bottom surface of the pot body obtained in the S1 after cleaning treatment by adopting an air spraying process, and curing for 35min at 280 ℃ to obtain a pot; wherein the spray pressure when forming the far infrared absorption coating is 0.5 Mpa.
Further, the thickness of the finally obtained far-red coating layer 2 was 50 μm.
Comparative example 1
The difference between the comparative example 1 and the example 1 is that the far infrared absorption coating in the comparative example 1 is not added with graphene, and the rest is the same as the example.
Comparative example 2
The comparative example 2 is different from the example 1 in that the silicon carbide whisker is not added to the far infrared absorption coating in the comparative example 1, and the other steps are the same as the examples.
Comparative example 3
The difference between the comparative example 3 and the example 1 is that the far infrared absorption coating of the comparative example 1 is not added with pigment and filler, and the other steps are the same as the examples.
Comparative example 4
The difference between the comparative example 4 and the example 1 is that the far infrared absorption coating in the comparative example 1 does not contain graphene and silicon carbide whiskers, and the rest is the same as the example.
Comparative example 5
The difference between the comparative example 5 and the example 1 is that the far infrared absorption coating in the comparative example 1 is not added with graphene and pigment filler, and the rest is the same as the example.
Comparative example 6
The difference between the comparative example 6 and the example 1 is that the far infrared absorbing paint in the comparative example 1 does not contain silicon carbide whisker and pigment filler, and the other steps are the same as the examples.
Comparative example 7
The difference between the comparative example 7 and the example 1 is that the far infrared absorption coating in the comparative example 1 is not added with graphene, silicon carbide whisker and pigment filler, and the rest is the same as the example.
In order to verify how the heat transfer efficiency of the pots coated with far infrared absorption coating obtained in the examples of the present invention is specific, the heat transfer efficiency of the pots obtained in examples 1 to 5 and comparative examples 1 to 7 was tested by the following specific test methods (as shown in fig. 2): the pots obtained in examples 1 to 5 and comparative examples 1 to 7 were filled with 1 liter of water, heated at maximum power or fire, and the boiling time of the water in each pot and the uncoated pot was compared when heated to boiling, and the detection structure is shown in table 1 below:
table 1 heat transfer efficiency test results of pots obtained in examples 1 to 5 of the present invention and comparative examples 1 to 7
Boiling time/min
Example 1 9.2
Example 2 9.3
Example 3 10.2
Example 4 9.8
Example 5 10.5
Comparative example 1 11.2
Comparative example 2 11.1
Comparative example 3 10.9
Comparative example 4 11.0
Comparative example 5 10.9
Comparative example 6 11.2
Comparative example 7 11.3
No coating (aluminium alloy) 11.2
No coating (tin plate) 12.5
As can be seen from the data in table 1 above, the heat transfer efficiency of the pot coated with the far infrared absorption coating 2 obtained in the embodiment of the present invention is significantly higher than that of the comparative example and the uncoated pot, and the heat transfer efficiency of the pot body 1 made of the same material (aluminum alloy) is at least 17.8% higher than that of the pot without the coating.
Furthermore, as can be seen from the data in example 1 and comparative examples 1 to 7 in table 1 above, on the premise of using the pan body 1 made of the same material (aluminum alloy), the bottom of the pan body is coated with the coating made of the far infrared absorption coating without graphene, silicon carbide whisker, pigment, graphene, silicon carbide whisker, graphene, pigment, silicon carbide whisker and pigment, respectively, and after the detection, if the coating is coated on the bottom of the pan body 1 by using the coating lacking any of the three components, the heat transfer efficiency of the pan obtained by the present invention is not reached, or even lower than that of the pan without the coating, which is enough to show that the graphene, silicon carbide whisker and pigment play a critical role in the coating of the present invention, after the three components are matched with each other, the far infrared absorption effect is played to the optimum by utilizing the synergistic effect of the three components, and the three components are absent and cannot be replaced by other substances.
In conclusion, the far infrared absorption coating composed of the organic silicon resin, the amino resin, the epoxy resin, the graphene, the silicon carbide whisker, the pigment and filler, the dispersant, the leveling agent and the solvent is selected, so that when the coating is coated on the existing pot body 1 by an air spraying process technology, the heat transfer efficiency can be effectively improved by at least 17.8 percent, the purpose of saving energy is realized, the cooking time is also saved, and the cost performance, the market competitiveness and the experience of a user of the pot are improved; in addition, the purpose of enhancing the heating effect or the heat transfer efficiency of the cookware body 1 by arranging the far infrared absorption coating on the outer side of the bottom of the cookware body is realized under the condition of not changing the overall structure of the system; in addition, the pot obtained by the invention has low cost, strong product competitiveness and good practicability, and is worthy of being widely popularized and used.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (13)

1. The far infrared absorption coating is characterized by comprising the following components in percentage by mass:
50-66% of organic silicon resin, 3-8% of amino resin, 4-10% of epoxy resin, 1-3% of graphene, 0.5-1.8% of silicon carbide whisker, 2-5% of pigment and filler, 0.5-2% of dispersing agent, 1-2.8% of flatting agent and 10-30% of solvent.
2. The far infrared absorption paint as claimed in claim 1, wherein the silicone resin is at least one of methyl silicone resin and phenyl silicone resin.
3. The far infrared absorption coating as claimed in claim 1, wherein the amino resin is at least one of urea-formaldehyde resin, melamine-formaldehyde resin, polyamide polyamine epichlorohydrin resin.
4. The far infrared absorption paint as claimed in claim 1, wherein the pigment and filler is at least one of titanium dioxide, carbon black, iron oxide, zinc oxide, barium sulfate.
5. The far infrared absorption coating as claimed in claim 1, wherein the dispersant is a polyether siloxane copolymer, specifically: at least one of BYK-300, BYK-301 and BYK-345.
6. The far infrared absorption coating as claimed in claim 1, wherein the leveling agent is at least one of modified siloxane and acrylic acid.
7. The far infrared absorption paint as claimed in any one of claims 1 to 6, wherein the solvent is a mixed solvent of PMA solvent and xylene.
8. A far infrared absorption coating layer for cookware, characterized in that the far infrared absorption coating layer is made of the far infrared absorption coating material of any one of claims 1 to 7.
9. A pot, characterized in that, including the pot body (1) and claim 8 far infrared absorption coating, far infrared absorption coating at least coats in pot body (1) bottom.
10. The pot as claimed in claim 9, wherein the far infrared absorption coating layer has a thickness of 20 to 50 μm.
11. A method of making a cookware as claimed in claim 10, wherein the method is carried out by:
s1, sequentially carrying out oil removal, sand blasting and cleaning on the bottom surface of the pot body (1) to obtain a cleaned pot body;
and S2, forming a far infrared absorption coating on the bottom surface of the pot body subjected to the cleaning treatment obtained in the step S1 by adopting an air spraying process, and curing to obtain the pot.
12. The method of claim 11, wherein in the step S2, the spraying pressure when the far infrared absorption coating is formed is 0.3 to 0.5 MPa.
13. The method for manufacturing a pot as claimed in claim 11 or 12, wherein in the step S2, the curing temperature is 220 to 280 ℃, and the curing time is 20 to 35 min.
CN202010885256.0A 2020-08-28 2020-08-28 Far infrared absorption coating, pot using far infrared absorption coating and preparation method Pending CN112126345A (en)

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Application publication date: 20201225