CN114231168A - High-performance water-based black flashing silver non-stick pan coating and preparation method thereof - Google Patents
High-performance water-based black flashing silver non-stick pan coating and preparation method thereof Download PDFInfo
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- CN114231168A CN114231168A CN202111570771.0A CN202111570771A CN114231168A CN 114231168 A CN114231168 A CN 114231168A CN 202111570771 A CN202111570771 A CN 202111570771A CN 114231168 A CN114231168 A CN 114231168A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 104
- 238000000576 coating method Methods 0.000 title claims abstract description 28
- 239000011248 coating agent Substances 0.000 title claims abstract description 27
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 24
- 239000004332 silver Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 28
- 239000003973 paint Substances 0.000 claims description 20
- 239000006229 carbon black Substances 0.000 claims description 19
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 claims description 18
- 229920003180 amino resin Polymers 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 17
- 229920000728 polyester Polymers 0.000 claims description 17
- 239000008213 purified water Substances 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 239000002270 dispersing agent Substances 0.000 claims description 16
- 239000000049 pigment Substances 0.000 claims description 16
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 14
- -1 aluminum silver Chemical compound 0.000 claims description 14
- 239000004576 sand Substances 0.000 claims description 12
- 238000005070 sampling Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 15
- 238000011056 performance test Methods 0.000 description 6
- 239000005028 tinplate Substances 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- 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
- A47J36/025—Vessels with non-stick features, e.g. coatings
-
- 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
- C09D5/18—Fireproof paints including high temperature resistant 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
- C09D7/20—Diluents or solvents
-
- 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
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Food Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention discloses a high-performance water-based black flash silver non-stick pan coating and a preparation method thereof. The coating has the advantages of low VOC content, environmental protection, safety, excellent hardness, adhesive force, heat resistance, scratch resistance and other various excellent performances.
Description
Technical Field
The invention relates to a high-performance water-based black flashing silver non-stick pan coating and a preparation method thereof, belonging to the field of environment-friendly special coatings.
Background
The non-stick pan coating is widely used for small kitchen appliances such as electric cookers, toasters, electric irons, baking trays, pans, air fryers, electric ovens and the like. The original oily non-stick pan paint has high VOC content and is not environment-friendly. Therefore, it is necessary to develop and screen a high-performance water-based black flashing silver non-stick pan coating which has low VOC content, excellent heat resistance, scratch resistance and other performances and can meet the requirements of most customers on the basis of the prior art.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to solve the defects of the prior art and provide the high-performance water-based black flashing silver non-stick pan coating with scientific and reasonable component proportion, low VOC content, environmental protection, safety, heat resistance, scratch resistance and other excellent performances and the preparation method thereof.
The technical scheme is as follows: in order to realize the purpose, the invention adopts the technical scheme that:
a high-performance water-based black flashing silver non-stick pan coating is prepared from the following raw materials: the coating comprises water-based polyester modified silicon resin, high-pigment carbon black, water-based aluminum silver paste, talcum powder, dibutyl ether, ethylene glycol butyl ether and/or propylene glycol methyl ether, purified water, a water-based dispersant, a water-based leveling agent and water-based amino resin.
As a preferred scheme, the high-performance black flash silver non-stick pan coating is prepared from the following raw materials in percentage by mass: 50-70% of water-based polyester modified silicon resin, 3-7% of high-pigment carbon black, 1.5-3% of water-based aluminum silver paste, 3-10% of talcum powder, 3-6% of dibutyl ether, 3-6% of ethylene glycol butyl ether and/or propylene glycol methyl ether, 8-15% of purified water, 0.3-0.8% of water-based dispersant, 0.3-0.8% of water-based flatting agent and 5-10% of water-based amino resin.
As a preferred scheme, the high-performance black flash silver non-stick pan coating is prepared from the following raw materials in percentage by mass: 60% of water-based polyester modified silicon resin, 4% of high-pigment carbon black, 2% of water-based aluminum silver paste, 7% of talcum powder, 3% of dibutyl ether, 3% of butyl cellosolve, 13% of purified water, 0.5% of water-based dispersant, 0.5% of water-based flatting agent and 7% of water-based amino resin.
As a preferred scheme, the high-performance black flash silver non-stick pan coating is prepared from the following raw materials in percentage by mass: 62% of water-based polyester modified silicon resin, 3.5% of high-pigment carbon black, 2.5% of water-based aluminum silver paste, 6% of talcum powder, 3% of dibutyl ether, 3% of propylene glycol methyl ether, 11% of purified water, 0.5% of water-based dispersant, 0.5% of water-based leveling agent and 8% of water-based amino resin.
As a preferred scheme, the high-performance black flash silver non-stick pan coating is prepared from the following raw materials in percentage by mass:
58% of water-based polyester modified silicon resin, 4% of high-pigment carbon black, 2.5% of water-based aluminum silver paste, 7% of talcum powder, 4% of dibutyl ether, 1.5% of ethylene glycol butyl ether, 3% of propylene glycol methyl ether, 11% of purified water, 0.5% of water-based dispersant, 0.5% of water-based leveling agent and 8% of water-based amino resin.
Preferably, the preparation method of the high-performance black flash silver non-stick pan coating comprises the following steps:
sequentially adding the water-based polyester modified silicon resin, the high-color carbon black, the water-based aluminum silver paste, the talcum powder, the dibutyl ether, the ethylene glycol butyl ether and/or the propylene glycol methyl ether, the water-based amino resin, the purified water, the water-based dispersant and the water-based leveling agent into a stainless steel sand mill, starting stirring, simultaneously ensuring that the temperature in the sand mill is not more than 60 ℃, sampling and measuring the fineness of the paint after sand milling until the fineness is ground to be less than 20 micrometers.
Preferably, the preparation method of the high-performance black flash silver non-stick pan coating comprises the following steps:
sequentially adding water-based polyester modified silicon resin, high-color carbon black, water-based aluminum silver paste, talcum powder, dibutyl ether, ethylene glycol butyl ether and/or propylene glycol methyl ether, water-based amino resin, purified water, a water-based dispersing agent and a water-based leveling agent into a stainless steel sand mill, starting stirring, maintaining the revolution number at 200-500 rpm, simultaneously ensuring that the temperature in the sand mill is not more than 60 ℃, sampling and measuring the fineness of the paint after maintaining the sand mill for 6-8 hours until the fineness is ground to be less than 20 micrometers.
Has the advantages that: compared with the prior art, the invention has the following advantages:
the paint is prepared by screening raw materials through a large number of experiments, the mixture ratio of the components is scientific and reasonable, wherein the mass percent of the resin accounts for 50-70%, and the gloss and the fullness of a paint film can be ensured only if the resin content is ensured to be more than or equal to 50% in the total amount of the paint; the water-based amino resin helps a paint film to be cured into a film, improves the curing speed and helps the paint to be crosslinked and cured. 3-7% of high-pigment carbon black, and experiments show that the high-pigment carbon black is low in tinting strength, insufficient in tinting strength and high in dispersibility; the water-based aluminum paste is 1.5-3%, and experiments show that the water-based aluminum paste has more colors and less silver flashing effect. Dibutyl ether, BCS and PM are cosolvents, have hydrophilicity, help to form films, help to disperse and level pigments and fillers, have little effect, and increase VOC.
Detailed Description
Embodiments of the present invention will be described in detail with reference to examples, in which specific conditions are not specified, according to conventional conditions or conditions recommended by manufacturers. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.
Example 1
1. A high-performance water-based black flashing silver non-stick pan coating is prepared from the following raw materials in percentage by mass:
| composition of raw materials | Mass percent% |
| Water-based polyester modified silicon resin 1162w | 60 |
| High pigment carbon black (Digao U black) | 4 |
| Aqueous aluminum silverPulp (zw9018) | 2 |
| Talcum powder (commercially available) | 7 |
| Dibutyl ether | 3 |
| Ethylene glycol butyl ether | 3 |
| Aqueous amino resin 5717w | 7 |
| Purified water | 13 |
| Aqueous dispersant SJ1900 | 0.6 |
| Aqueous leveling agent BYK307 | 0.4 |
。
2. The film forming method of the paint film comprises the following steps: the paint is evenly sprayed on the surface of a 5 x 10cm tin plate by a German Wonde PILOT MINI manual spray gun, the tin plate is dried in the air for half an hour, then is baked for forming a film at 280 ℃ for ten minutes, and the thickness of a varnish dry film is controlled to be about 25 micrometers. The following various performance tests were then performed. Paint film performance test (after 280-degree ten-minute baking):
| detecting items | The result of the detection | Reference standard |
| Adhesion (circle drawing method) | Level 1 | GB1720-79 |
| Paint film thickness (Nixon QNIX4500) | 28 micron | GB/T13452.2-2008 |
| Hardness (Chinese pencil) | 4H | GB/T6739-1986 |
| Gloss (OUPU, 60 degree) | 98 | GB/T1743-1989 |
| Flexibility (QTX) | 1mm | GB/T1731-1993 |
| Impact resistance (QCJ) | 50g.cm | GB/T1732-1988 |
| Heat resistance (280 degree half hour) | Slight yellowing | No national standard, visual observation |
| Resisting boiling in 3% acetic acid solution for 1 hr | Intact | Without national standard |
| Boiling resistant for 3 hours | Intact | Without national standard |
| VOC content | Less than 30 percent |
。
Example 2
1. A high-performance water-based black flashing silver non-stick pan coating is prepared from the following raw materials in percentage by mass:
| composition of raw materials | Mass percent% |
| Waterborne polyester modified silicone resin 1172w | 62 |
| High pigment carbon black (Digao U black) | 3.5 |
| Water-based aluminum paste (zw9018) | 2.5 |
| Talcum powder (commercially available) | 6 |
| Dibutyl ether | 3 |
| Propylene glycol methyl ether | 3 |
| Aqueous amino resin 5717w | 8 |
| Purified water | 11 |
| Aqueous dispersant SJ1900 | 0.6 |
| Aqueous leveling agent BYK307 | 0.4 |
。
2. The film forming method of the paint film comprises the following steps: the paint is evenly sprayed on the surface of a 5 x 10cm tin plate by a German Wonde PILOT MINI manual spray gun, the tin plate is dried in the air for half an hour, then is baked for forming a film at 280 ℃ for ten minutes, and the thickness of a varnish dry film is controlled to be about 25 micrometers. The following various performance tests were then performed. Paint film performance test (after 280-degree ten-minute baking):
example 3
1. A high-performance water-based black flashing silver non-stick pan coating is prepared from the following raw materials in percentage by mass:
| composition of raw materials | Mass percent% |
| Waterborne polyester modified silicone resin 1172w | 58 |
| High pigment carbon black (Digao U black) | 4 |
| Water-based aluminum paste (zw9018) | 2.5 |
| Talcum powder (commercially available) | 7 |
| Dibutyl ether | 4 |
| Ethylene glycol butyl ether | 1.5 |
| Propylene glycol methyl ether | 3 |
| Aqueous amino resin 5717w | 8 |
| Purified water | 11 |
| Aqueous fractionPowder SJ1900 | 0.6 |
| Aqueous leveling agent BYK307 | 0.4 |
。
2. The film forming method of the paint film comprises the following steps: the paint is evenly sprayed on the surface of a 5 x 10cm tin plate by a German Wonde PILOT MINI manual spray gun, the tin plate is dried in the air for half an hour, then is baked for forming a film at 280 ℃ for ten minutes, and the thickness of a varnish dry film is controlled to be about 25 micrometers. The following various performance tests were then performed. Paint film performance test (after 280-degree ten-minute baking):
the foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The high-performance water-based black flashing silver non-stick pan coating is characterized by being prepared from the following raw materials: the coating comprises water-based polyester modified silicon resin, high-pigment carbon black, water-based aluminum silver paste, talcum powder, dibutyl ether, ethylene glycol butyl ether and/or propylene glycol methyl ether, purified water, a water-based dispersant, a water-based leveling agent and water-based amino resin.
2. The high-performance black flash silver non-stick pan coating material according to claim 1, which is prepared from the following raw materials in percentage by mass: 50-70% of water-based polyester modified silicon resin, 3-7% of high-pigment carbon black, 1.5-3% of water-based aluminum silver paste, 3-10% of talcum powder, 3-6% of dibutyl ether, 3-6% of ethylene glycol butyl ether and/or propylene glycol methyl ether, 8-15% of purified water, 0.3-0.8% of water-based dispersant, 0.3-0.8% of water-based flatting agent and 5-10% of water-based amino resin.
3. The high-performance black flash silver non-stick pan coating material according to claim 2, which is prepared from the following raw materials in percentage by mass: 60% of water-based polyester modified silicon resin, 4% of high-pigment carbon black, 2% of water-based aluminum silver paste, 7% of talcum powder, 3% of dibutyl ether, 3% of butyl cellosolve, 13% of purified water, 0.5% of water-based dispersant, 0.5% of water-based flatting agent and 7% of water-based amino resin.
4. The high-performance black flash silver non-stick pan coating material according to claim 2, which is prepared from the following raw materials in percentage by mass: 62% of water-based polyester modified silicon resin, 3.5% of high-pigment carbon black, 2.5% of water-based aluminum silver paste, 6% of talcum powder, 3% of dibutyl ether, 3% of propylene glycol methyl ether, 11% of purified water, 0.5% of water-based dispersant, 0.5% of water-based leveling agent and 8% of water-based amino resin.
5. The high-performance black flash silver non-stick pan coating material according to claim 2, which is prepared from the following raw materials in percentage by mass:
58% of water-based polyester modified silicon resin, 4% of high-pigment carbon black, 2.5% of water-based aluminum silver paste, 7% of talcum powder, 4% of dibutyl ether, 1.5% of ethylene glycol butyl ether, 3% of propylene glycol methyl ether, 11% of purified water, 0.5% of water-based dispersant, 0.5% of water-based leveling agent and 8% of water-based amino resin.
6. The preparation method of the high-performance black flash silver non-stick pan coating material as claimed in any one of claims 1 to 5, which is characterized by comprising the following steps:
sequentially adding the water-based polyester modified silicon resin, the high-color carbon black, the water-based aluminum silver paste, the talcum powder, the dibutyl ether, the ethylene glycol butyl ether and/or the propylene glycol methyl ether, the water-based amino resin, the purified water, the water-based dispersant and the water-based leveling agent into a stainless steel sand mill, starting stirring, simultaneously ensuring that the temperature in the sand mill is not more than 60 ℃, sampling and measuring the fineness of the paint after sand milling until the fineness is ground to be less than 20 micrometers.
7. The preparation method of the high-performance black flash silver non-stick pan coating according to claim 6, characterized by comprising the following steps:
sequentially adding water-based polyester modified silicon resin, high-color carbon black, water-based aluminum silver paste, talcum powder, dibutyl ether, ethylene glycol butyl ether and/or propylene glycol methyl ether, water-based amino resin, purified water, a water-based dispersing agent and a water-based leveling agent into a stainless steel sand mill, starting stirring, maintaining the revolution number at 200-500 rpm, simultaneously ensuring that the temperature in the sand mill is not more than 60 ℃, sampling and measuring the fineness of the paint after maintaining the sand mill for 6-8 hours until the fineness is ground to be less than 20 micrometers.
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2021
- 2021-12-21 CN CN202111570771.0A patent/CN114231168A/en active Pending
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