WO2020073892A1 - Composé de revêtement et sa préparation, composant revêtu et son procédé de préparation, et appareil électroménager - Google Patents

Composé de revêtement et sa préparation, composant revêtu et son procédé de préparation, et appareil électroménager Download PDF

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Publication number
WO2020073892A1
WO2020073892A1 PCT/CN2019/109981 CN2019109981W WO2020073892A1 WO 2020073892 A1 WO2020073892 A1 WO 2020073892A1 CN 2019109981 W CN2019109981 W CN 2019109981W WO 2020073892 A1 WO2020073892 A1 WO 2020073892A1
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WO
WIPO (PCT)
Prior art keywords
polysilazane
polysiloxane
coating composition
raw material
mass percentage
Prior art date
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PCT/CN2019/109981
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English (en)
Chinese (zh)
Inventor
赵莉
Original Assignee
广东美的厨房电器制造有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority claimed from CN201811172190.XA external-priority patent/CN109401621A/zh
Priority claimed from CN201811172189.7A external-priority patent/CN109401620A/zh
Application filed by 广东美的厨房电器制造有限公司, 美的集团股份有限公司 filed Critical 广东美的厨房电器制造有限公司
Publication of WO2020073892A1 publication Critical patent/WO2020073892A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • C08G77/452—Block-or graft-polymers containing polysiloxane sequences containing nitrogen-containing sequences
    • 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
    • C09D183/10—Block or graft copolymers containing polysiloxane sequences
    • 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
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic

Definitions

  • the present application relates to the technical field of household appliances, in particular to a coating composition, a method for preparing the coating composition, a coated article made from the coating composition, a method for preparing the coated article, and application of the coated article Household appliances.
  • the material of the above coating is mainly: enamel (the enamel can be formed on the surface of the product through the enamel process), silicone, Teflon, epoxy powder (The epoxy powder can be sprayed on the surface of the product by spraying), or silica sol + silicone hybrid coating.
  • enamel the enamel can be formed on the surface of the product through the enamel process
  • silicone Teflon
  • epoxy powder The epoxy powder can be sprayed on the surface of the product by spraying
  • silica sol + silicone hybrid coating mainly: enamel (the enamel can be formed on the surface of the product through the enamel process), silicone, Teflon, epoxy powder (The epoxy powder can be sprayed on the surface of the product by spraying), or silica sol + silicone hybrid coating.
  • the above coatings have the disadvantages of low hardness, poor adhesion, poor temperature resistance, difficulty in cleaning, and potential food contact safety risks.
  • the main purpose of the present application is to provide a coating composition, which aims to make the coating prepared by the coating composition have the advantages of high hardness, good adhesion, good temperature resistance, easy cleaning, and food contact safety level .
  • the raw materials for preparing the coating composition include polysilazane, polysiloxane, and siloxane containing a low surface energy side chain.
  • the polysilazane and polysiloxane occur The copolymerization reaction generates a polysilazane-polysiloxane copolymer, and the siloxane containing a low surface energy side chain is mixed with the polysilazane-polysiloxane copolymer.
  • the range of the mass percentage of the polysilazane in the preparation raw material is 6-96.99%, the range of the mass percentage of the polysiloxane in the preparation raw material is 3-74%, and the The siloxane with a low surface energy side chain accounts for 0.01% to 20% of the mass percentage of the prepared raw material.
  • the low surface energy side chain-containing siloxane is selected from triethoxy [4- (trifluoromethyl) phenyl] silane, triethoxy-1H, 1H, 2H, 2H-thirteen Fluorine-N-octylsilane, 1,3-bis (3,3,3-trifluoropropyl) -1,1,3,3-tetramethyldisiloxane, 3- (heptafluoroisopropoxy Group) propyl triethoxysilane, pentafluorophenyl triethoxysilane, 1H, 1H, 2H, 2H-perfluorodecyl triethoxysilane, monofluorotriethoxysilane, trifluoromethyl Tetrafluorophenyltriethoxysilane, 1H, 1H, 2H, 2H-perfluorododecyltriethoxysilane, perfluorooctylethyltrisiloxan
  • R 1 is hydrogen, alkane, cycloalkane, alkene, aryl, alkoxy, alkylsiloxy, or alkylamine group
  • R 2 is hydrogen, alkane, cycloalkane, alkene, aryl , Alkoxy, alkylsiloxy, or alkylamino
  • R 3 is hydrogen, alkane, cycloalkane, alkene, aryl, alkoxy, or alkylsiloxy.
  • R 1 and R 2 are hydrogen groups or an alkene.
  • the molecular weight of the polysilazane is 100-1000.
  • R 4 is hydrogen, alkane, cycloalkane, alkene, aryl, alkoxy, or alkylsiloxy
  • R 5 is hydrogen, alkane, cycloalkane, alkene, aryl, alkoxy , Or alkylsiloxy.
  • the molecular weight of the polysiloxane is 100-1300.
  • the raw material for preparing the coating composition further includes a color material, and the color material is mixed with a siloxane containing a low surface energy side chain and the polysilazane-polysiloxane copolymer.
  • the range of the mass percentage of the polysilazane in the preparation raw material is 7 to 60%, and the range of the mass percentage of the polysiloxane in the preparation raw material is 3 to 40%.
  • the siloxane with a low surface energy side chain accounts for 0.01% to 15% of the mass of the preparation raw material, and the colorant accounts for 0.01% to 5% of the preparation of the raw material.
  • the raw material for preparing the coating composition further includes a solvent, and the solvent accounts for a mass percentage of the coating composition in the range of 10 to 66%.
  • the solvent is selected from alkane solvents, ether solvents, and ketones. At least one of solvents and benzene derivative solvents.
  • the alkane solvent is at least one or more selected from n-hexane, n-octane, n-decane, chloroform, methylene chloride, dichloroethylene, and mineral oil;
  • the ether solvent At least one selected from diethyl ether, petroleum ether, and dibutyl ether;
  • the ketone solvent is selected from at least one of acetone, methyl ethyl ketone, cyclohexanone, and isophorone;
  • the benzene derivative solvent At least one selected from toluene, m-xylene, p-xylene, o-xylene, and chlorobenzene.
  • the raw material for preparing the coating composition further includes a catalyst, and the catalyst accounts for a mass percentage of the raw material in the range of 0.01 to 5%, and the catalyst is an amine catalyst and / or a metal catalyst.
  • the amine catalyst is selected from one or more of aliphatic amines, alicyclic amines, alcohol amines, and aromatic amines, and the fatty amines are selected from diethylamine, triethylamine, and triethylene tetra At least one of amines;
  • the alicyclic amine is selected from at least one of triethylenediamine, piperazine, piperidine, and morpholine;
  • the alcohol amine is selected from N, N-dimethylethanolamine , Diisopropanolamine, and N, N-diethylethanolamine at least one;
  • the aromatic amine is selected from aniline, o-phenylenediamine, benzidine, and N, N-dimethylaniline at least One; and / or
  • the metal catalyst is an organotin catalyst and / or a palladium catalyst.
  • the organotin catalyst is selected from at least one of dibutyl tin dilaurate, stannous octoate, dimethyl tin, and triphenyl tin;
  • the palladium catalyst is selected from at least one of carbon / palladium, palladium chloride, palladium propionate salt, palladium acetate salt, and triphenylphosphorpalladium.
  • the raw material for preparing the coating composition further includes a filler, and the filler accounts for a mass percentage of the raw material in the range of 1 to 50%.
  • the filler is selected from silicon carbide, aluminum oxide, titanium oxide, and zinc oxide. , Magnesium oxide, aluminum hydroxide, white carbon black, attapulgite, kaolin, bentonite, glass microspheres, and ceramic microspheres.
  • the raw material for preparing the coating composition further includes a filler and a catalyst
  • the filler accounts for 1 to 50% of the mass of the prepared raw material
  • the catalyst accounts for the mass of the prepared raw material in the range of 0.01 to 5%
  • the polysiloxane and polysilazane account for the mass percentage of the coating composition in the range of 10% to 80%
  • the low surface energy side chain-containing siloxane accounts for the coating The mass percentage of the composition ranges from 0.01% to 20%.
  • the present application also provides a method for preparing a coating composition, including the following steps:
  • the preparation raw materials include: polysilazane, polysiloxane and siloxane containing low surface energy side chain;
  • the siloxane containing low surface energy side chain is added to the polysilazane-polysiloxane copolymer to prepare the coating composition.
  • the present application also provides a coated article, the coated article including a substrate, and a coating layer formed on the surface of the substrate, the coating layer containing the coating composition.
  • the present application also provides a method for preparing a coated part, including the following steps:
  • the coating composition is applied to the surface of the substrate to prepare the coated article.
  • the present application also provides a household appliance including the coating member.
  • the raw materials for preparing the coating composition of the technical solution of the present application include polysilazane, polysiloxane, and siloxane containing a side chain with low surface energy.
  • the polysilazane and polysiloxane will undergo a copolymerization reaction to form poly Silazane-polysiloxane copolymer.
  • the polysilazane-polysiloxane copolymer has the advantages of high hardness, good adhesion and good temperature resistance, so that the coating formed from the coating composition has the advantages of high hardness, good adhesion and good temperature resistance.
  • the polysilazane-polysiloxane copolymer is further mixed with a siloxane containing a low surface energy side chain, and the siloxane containing a low surface energy side chain can make the coating layer formed by the coating composition further have The advantages of easy cleaning.
  • the polysilazane, polysiloxane, polysilazane-polysiloxane copolymer, and siloxanes with low surface energy side chains are not toxic and harmful substances, so that they are prepared from the coating composition
  • the coating also has the advantage of food contact safety.
  • first, second, etc. in this application are for descriptive purposes only, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features.
  • the features defined with “first” and “second” may include at least one of the features either explicitly or implicitly.
  • the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary people in the art to achieve, when the combination of technical solutions conflicts with each other or cannot be realized, it should be considered that the combination of such technical solutions does not exist , Nor within the scope of protection required by this application.
  • the present application provides a coating composition.
  • the raw materials for preparing the coating composition include polysilazane, polysiloxane, and siloxane containing a low surface energy side chain.
  • the polysilazane and polysiloxane undergo a copolymerization reaction to form polysilazane- A polysiloxane copolymer in which the low surface energy side chain-containing siloxane is mixed with the polysilazane-polysiloxane copolymer.
  • the raw materials for preparing the coating composition of the technical solution of the present application include polysilazane, polysiloxane, and siloxane containing a side chain with low surface energy.
  • the polysilazane and polysiloxane will undergo a copolymerization reaction to form poly Silazane-polysiloxane copolymer.
  • the polysilazane-polysiloxane copolymer has the advantages of high hardness, good adhesion and good temperature resistance, so that the coating formed from the coating composition has the advantages of high hardness, good adhesion and good temperature resistance.
  • the polysilazane-polysiloxane copolymer is further mixed with a siloxane containing a low surface energy side chain, and the siloxane containing a low surface energy side chain can make the coating layer formed by the coating composition further have The advantages of easy cleaning.
  • the polysilazane, polysiloxane, polysilazane-polysiloxane copolymer, and siloxanes with low surface energy side chains are not toxic and harmful substances, so that they are prepared from the coating composition
  • the coating also has the advantage of food contact safety.
  • the mass percentage of the polysilazane in the preparation raw material ranges from 6 to 96.99%, the mass percentage of the polysiloxane in the preparation raw material ranges from 3 to 74%, and the low surface energy
  • the siloxane of the side chain accounts for the mass percentage of the prepared raw material in the range of 0.01-20%.
  • the mass percentage of the polysilazane in the preparation raw material ranges from 6 to 96.99%.
  • the mass percentage of the polysilazane in the preparation raw material ranges from 10 to 80%, more optionally from 15 to 60%, and further optionally from 20 to 35%.
  • the polysiloxane accounts for the mass percentage of the prepared raw material in the range of 3 to 74%.
  • the mass percentage of the polysiloxane to the preparation raw material is in the range of 10-60%, more optionally 15-60%, and further optionally 20-40%.
  • the siloxane containing a low surface energy side chain accounts for 0.01% to 20% of the mass percentage of the prepared raw material.
  • the mass percentage of the siloxane containing low surface energy side chains in the preparation raw material ranges from 1 to 20%, more preferably from 5 to 20%, and further from 10 to 15%.
  • polysilazane accounts for 6% to 96.99% of the mass of the prepared raw material
  • polysiloxane accounts for 3% to 74% of the mass of the prepared raw material.
  • the siloxane containing low surface energy side chains accounts for the mass percentage of the prepared raw material in the range of 0.01-20%, so that the polysilazane and polysiloxane at this content generate polysilazane-polysiloxane
  • the polysilazane-polysiloxane copolymer is mixed with a certain amount of siloxane containing low surface energy side chains to obtain a coating composition with better formation, which in turn allows the coating composition to be combined
  • the coating made of the product has the advantages of high hardness, good adhesion, easy to clean, good temperature resistance, and food safety level.
  • the siloxane containing a low surface energy side chain is selected from triethoxy [4- (trifluoromethyl) phenyl] silane, triethoxy-1H, 1H, 2H, 2H-tridecylfluoro-N -Octylsilane, 1,3-bis (3,3,3-trifluoropropyl) -1,1,3,3-tetramethyldisiloxane, 3- (heptafluoroisopropoxy) propane Triethoxysilane, pentafluorophenyltriethoxysilane, 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane, monofluorotriethoxysilane, trifluoromethyltetrafluorobenzene Triethoxysilane, 1H, 1H, 2H, 2H-perfluorododecyltriethoxysilane, perfluorooctylethyltrisi
  • the coating composition contains a siloxane containing a low surface energy side chain, which can make the coating prepared by the coating composition have the advantage of being easy to clean, and None of the chain siloxanes are toxic or hazardous substances, so that the coating composition can achieve food contact safety levels.
  • siloxane containing a low surface energy side chain may also be other substances that can achieve the same or similar functions, which is not limited in this application.
  • R 1 is hydrogen, alkane, cycloalkane, alkene, aryl, alkoxy, alkylsiloxy, or alkylamine group
  • R 2 is hydrogen, alkane, cycloalkane, alkene, aryl , Alkoxy, alkylsiloxy, or alkylamino
  • R 3 is hydrogen, alkane, cycloalkane, alkene, aryl, alkoxy, or alkylsiloxy.
  • R 4 is hydrogen, alkane, cycloalkane, alkene, aryl, alkoxy, or alkylsiloxy
  • R 5 is hydrogen, alkane, cycloalkane, alkene, aryl, alkoxy , Or alkylsiloxy.
  • At least one of R 1 and R 2 is a hydrogen group or an alkene.
  • both the polysilazane and the polysiloxane are high temperature resistant materials.
  • R 1 , R 2 and R 3 may be the same group or different groups, which can be adjusted according to actual needs.
  • R 4 and R 5 may be the same group or different groups, which can be adjusted according to actual needs.
  • R 1 , R 2 and R 3 can also be other groups that can achieve the same or similar functions, which is not limited in this application; R 4 and R 5 can also be other groups that can achieve the same or similar functions This application does not limit this group.
  • the polysilazane can undergo a copolymerization reaction with the polysiloxane to form the host resin of the coating composition, so that the coating made from the coating composition has hardness High, good adhesion, good temperature resistance, and the advantages of reaching food contact safety level.
  • the molecular weight of the polysilazane is 100-1000.
  • the molecular weight of the polysiloxane is 100-1300.
  • the molecular weight of the polysilazane is 100, 200, 300, 400, 500, 600, 700, 800, 900 or 1000.
  • the molecular weight of the polysilazane may be 100-700, and more preferably 100-300.
  • the molecular weight of the polysiloxane is 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, or 1300.
  • the molecular weight of the polysiloxane may be 200-900, more preferably 200-500.
  • the molecular weight of the polysilazane in the technical solution of the present application is 100-1000, the molecular weight of the polysiloxane is 100-1300, and the polysilazane with a molecular weight of 100-1000 is copolymerized with the polysiloxane with a molecular weight of 100-1300 After the reaction, a polysilazane-polysiloxane copolymer can be formed. After the coating composition containing the polysilazane-polysiloxane copolymer is applied to the substrate to form a coating, the coating has better Hardness, adhesion and temperature resistance.
  • the raw material for preparing the coating composition further includes a color material, and the color material is mixed with a siloxane containing a low surface energy side chain and the polysilazane-polysiloxane copolymer.
  • the raw material for preparing the coating composition of the technical solution of the present application further contains a color material, so that the coating prepared by the coating composition also has a better appearance. Since the polysilazane, polysiloxane, polysilazane-polysiloxane copolymer, and siloxanes with low surface energy side chains are not toxic and harmful substances, the colorant also does not contain toxic and harmful substances Substance, so that the coating prepared from the coating composition also has the advantage of food contact safety.
  • the mass percentage of the polysilazane in the preparation raw material ranges from 7 to 60%, the mass percentage of the polysiloxane in the preparation raw material ranges from 3 to 40%, and the low surface energy
  • the range of the mass percentage of siloxane in the side chain to the preparation raw material is 0.01 to 15%, and the range of the mass percentage of the coloring material to the preparation raw material is 0.01 to 5%.
  • the polysilazane accounts for the mass percentage of the prepared raw material in the range of 7-60%.
  • the mass percentage of the polysilazane in the preparation raw material ranges from 10 to 50%, more preferably from 20 to 40%, and further preferably from 25 to 35%.
  • the polysiloxane accounts for the mass percentage of the prepared raw material in the range of 3-40%.
  • the mass percentage of the polysiloxane in the preparation raw material ranges from 5 to 30%, more preferably from 10 to 25%, and further preferably from 15 to 20%.
  • the siloxane containing the low surface energy side chain accounts for 0.01% to 15% of the mass percentage of the prepared raw material.
  • the mass percentage of the siloxane containing low surface energy side chains in the preparation raw material ranges from 0.1 to 10%, more preferably from 1 to 10%, and further from 5 to 10%.
  • the color material accounts for the mass percentage of the prepared raw material in the range of 0.01 to 5%.
  • the range of the mass percentage of the color material in the prepared raw material is 0.1 to 5%, more preferably 1 to 5%, and further preferably 2 to 3%.
  • the polysilazane accounts for the mass percentage of the preparation raw material in the range of 7 to 60%
  • the polysiloxane accounts for the preparation raw material in the mass percentage of the range of 3 to 40%.
  • the siloxane with a low surface energy side chain accounts for 0.01% to 15% of the mass of the prepared raw material
  • the color material accounts for the mass of the prepared raw material in the range of 0.01 to 5%.
  • Silazane and polysiloxane can produce a better content of polysilazane-polysiloxane copolymer, siloxanes and pigments containing low surface energy side chains can be combined with the polysilazane-polysilicon
  • the oxane copolymers are mixed to obtain a coating composition with better performance, so that the coating prepared by the coating composition not only has high hardness, good adhesion, good temperature resistance, easy to clean, and can reach food contact
  • the advantages of security level also have a better appearance.
  • the colorant is selected from at least one of white colorant, yellow colorant, orange colorant, black colorant, purple colorant, brown colorant, green colorant, blue colorant, gray colorant, and red colorant Species.
  • the coating composition contains a colorant, and the colorant may be a white colorant, a yellow colorant, an orange colorant, a black colorant, a purple colorant, a brown colorant, a green colorant, Blue pigment, gray pigment, or red pigment, so that the coating prepared by the coating composition has a colorful appearance.
  • the colorant may be a white colorant, a yellow colorant, an orange colorant, a black colorant, a purple colorant, a brown colorant, a green colorant, Blue pigment, gray pigment, or red pigment, so that the coating prepared by the coating composition has a colorful appearance.
  • the white colorant is at least one selected from the group consisting of antimony white (Antimony white), barium sulfate (Barium sulfate), zinc barium white (Lithopone), titanium white (Titanium white), and zinc white.
  • the yellow colorant is Nickel Antimony Titanium (Nickel Titanium Antimony) and / or Titanium Chrome Brown (Chrome Titanium Brown).
  • the orange pigment is Rutile Tin Zinc.
  • the black colorant is selected from Copper chromite black spinel, Titanium black, Titanium black, Manganese dioxide (MnO2), Mars black, Mars black, Ivory black, and At least one of carbon black.
  • the purple color material is cobalt phosphate (Cobalt Phosphate).
  • the brown coloring material is titanium manganese brown (Manganese antimony titanium) and / or zinc iron chrome brown (Chromium iron brown).
  • the green colorant is selected from at least one of cobalt green, malachite, and green earth.
  • the blue colorant is selected from Ultramarine, Cobalt blue, Egyptian blue, Han blue, Azurite, and YInMn blue At least one of them.
  • the gray color material is copper chromite black spinel (Copper chromite black spinel), titanium black (Titanium black), manganese dioxide (MnO2), Mars black (Mars black), ink purple (Vine black), ivory ink (Ivory black), carbon black (Carbon black), antimony white (Antimony white), barium sulfate (Barium Sulfate), zinc barium white (Lithopone), titanium white (Titanium white), zinc white (Zinc white) ), A mixture of at least one of) and at least one of burnt sienna, India Red, and cobalt blue can be further added to the mixture.
  • the red colorant is selected from at least one of burnt loess (Burnt Sienna), burnt ochre (Red ochre), and Indian red (India Red).
  • the above-mentioned colorants in the technical solution of the present application can all reach the food contact safety level, so that after the colorant is added to the coating composition, the coating composition can also reach the food contact safety level.
  • the color material can be selected according to the actual needs, so that the coating has a better appearance.
  • the raw material for preparing the coating composition further includes a solvent, and the solvent accounts for a mass percentage of the raw material in the range of 10 to 66%, optionally 15 to 50%, and more preferably 20 to 40%. Choose from 30 to 35%.
  • the solvent may be selected from at least one of alkane solvents, ether solvents, ketone solvents, and benzene derivative solvents.
  • the alkane solvent may be selected from at least one of n-hexane, n-octane, n-decane, chloroform, methylene chloride, dichloroethylene, and mineral oil.
  • the ether solvent may be at least one selected from diethyl ether, petroleum ether, and dibutyl ether.
  • the ketone solvent may be selected from at least one of acetone, methyl ethyl ketone, cyclohexanone, and isophorone.
  • the benzene derivative solvent is at least one selected from toluene, m-xylene, p-xylene, o-xylene, and chlorobenzene.
  • solvents that can dissolve the copolymerization product of polysiloxane and polysilazane can also be used as the solvent of the present application, which is not limited in this application.
  • the polysilazane-polysiloxane copolymer and the siloxane containing a low surface energy side chain can be dissolved in a solvent, so that the coating composition can be more easily applied to the surface of the substrate.
  • the raw material for preparing the coating composition further includes a catalyst, and the mass percentage of the catalyst in the raw material for the preparation ranges from 0.01 to 5%, optionally from 0.1 to 5%, more preferably from 1 to 5%, and further Choose 2 ⁇ 3%.
  • the catalyst is an amine catalyst and / or a metal catalyst.
  • the amine catalyst may be selected from one or more of aliphatic amine, alicyclic amine, alcohol amine, and aromatic amine.
  • the fatty amine may be selected from at least one of diethylamine, triethylamine, and triethylenetetramine.
  • the alicyclic amine may be selected from at least one of triethylenediamine, piperazine, piperidine, and morpholine.
  • the alcohol amine may be selected from at least one of N, N-dimethylethanolamine, diisopropanolamine, and N, N-diethylethanolamine.
  • the aromatic amine is selected from at least one of aniline, o-phenylenediamine, benzidine, and N, N-dimethylaniline.
  • the metal-based catalyst may be an organic tin catalyst and / or a palladium-based catalyst.
  • the organotin catalyst may be selected from at least one of dibutyltin dilaurate, stannous octoate, dimethyl tin, and triphenyl tin.
  • the palladium catalyst may be selected from at least one of carbon / palladium, palladium chloride, palladium propionate salt, palladium acetate salt, and triphenylphosphorpalladium.
  • the catalyst can accelerate the copolymerization reaction between polysilazane and polysiloxane, thereby generating the polysilazane-polysiloxane copolymer in a short time.
  • the raw material for preparing the coating composition further includes a filler, and the filler accounts for the mass percentage of the raw material in the range of 1-50%, optionally 5-40%, optionally 10-30%, and more optionally 15-25%.
  • the filler is selected from silicon carbide, alumina, titanium oxide, zinc oxide, magnesium oxide, aluminum hydroxide, white carbon (silica aerogel), attapulgite, kaolin, bentonite, glass microspheres, and ceramic micro At least one of the balls.
  • the particle size of the filler may be less than 3 microns, optionally less than 2 microns, and even more preferably 1 microns.
  • the particle size of the filler ranges from 0.2 to 0.8 microns. Understandably, the particle size of the filler is 0.2 microns, 0.3 microns, 0.4 microns, 0.5 microns, 0.6 microns, 0.7 microns, or 0.8 microns.
  • the filler when the particle size range of the filler is set to 0.2-0.8 microns, the filler can be uniformly dispersed in the coating composition, and the surface of the prepared coating is relatively smooth.
  • the particle size of the filler is in the range of 0.2-0.5 microns to obtain a smoother coating.
  • a grinder may be used to grind the filler to reduce the particle size of the filler.
  • the coating initial product may be ground to reduce the particle size of the filler in the coating composition.
  • the filler can be uniformly dispersed in the coating composition.
  • the filler is selected from silicon carbide, aluminum oxide, titanium oxide, zinc oxide, magnesium oxide, aluminum hydroxide, white carbon (silica aerogel), attapulgite, kaolin, bentonite, glass At least one of microspheres and ceramic microspheres to increase the hardness, adhesion and temperature resistance of the coating made from the coating composition.
  • fillers with high temperature resistance can also be used as fillers in this application, which is not limited in this application.
  • solvents, catalysts and fillers of the present application are also not toxic and harmful substances, so that the coating made from the coating composition also has the advantage of food contact safety.
  • the raw material for preparing the coating composition may further include a color material.
  • the mass percentage of the color material in the prepared raw material ranges from 0.01 to 5%, optionally from 1 to 5%, and more preferably from 2 to 4%.
  • the raw materials for preparing the coating composition include: polysiloxane, polysilazane, low surface energy side chain-containing siloxane, filler, solvent, and catalyst.
  • the mass percentage of the polysiloxane and polysilazane in the preparation raw material ranges from 10% to 80%
  • the low surface energy side chain-containing siloxane accounts for the mass percentage of the preparation raw material in the range of 0.01-20%
  • the filler accounts for 1-50% of the preparation raw material
  • the solvent accounts for 10% -66% of the preparation raw material
  • the catalyst accounts for 0.01% of the preparation raw material 5%.
  • the raw materials for preparing the coating composition include: polysiloxane, polysilazane, low surface energy side chain-containing siloxane, filler, solvent, and catalyst.
  • the mass percentage of the polysiloxane and polysilazane in the preparation raw material ranges from 10% to 60%
  • the mass percentage range of the low surface energy side chain-containing siloxane in the preparation raw material is 0.01% to 15%
  • the filler accounts for 1% to 50% of the preparation raw material
  • the solvent accounts for 10% to 66% of the preparation raw material
  • the catalyst accounts for the preparation raw material to 0.01% 5%.
  • the raw materials for preparing the coating composition include: polysiloxane, polysilazane, low surface energy side chain-containing siloxane, filler, solvent, colorant, and catalyst.
  • the mass percentage of the polysiloxane and polysilazane in the preparation raw material ranges from 10% to 60%
  • the mass percentage range of the low surface energy side chain-containing siloxane in the preparation raw material is 0.01% to 15%
  • the filler accounts for 1% to 50% of the preparation raw material
  • the solvent accounts for the preparation of the raw material
  • the range is 10 to 66%
  • the colorant accounts for the preparation of the raw material.
  • the mass percentage of the catalyst in the preparation raw material ranges from 0.01 to 5%.
  • the raw materials for preparing the coating composition include: polysiloxane, polysilazane, siloxanes with low surface energy side chains, colorants, fillers, solvents, and catalysts.
  • the polysiloxane and polysilazane account for 10% to 80% of the mass of the prepared raw material
  • the low surface energy side chain-containing siloxane accounts for the mass of the prepared raw material.
  • the color material accounts for 0.01% to 5% of the mass of the preparation material
  • the filler accounts for 1% to 50% of the mass of the preparation material
  • the solvent accounts for the The mass percentage of the prepared raw material ranges from 10 to 66%
  • the mass percentage of the catalyst to the prepared raw material ranges from 0.01 to 5%.
  • the present application also provides a method for preparing a coating composition, including the following steps:
  • preparation materials include polysilazane, polysiloxane and siloxane containing low surface energy side chain;
  • the siloxane containing low surface energy side chain is added to the polysilazane-polysiloxane copolymer to prepare the coating composition.
  • the mass percentage of the polysilazane in the preparation raw material ranges from 6 to 96.99%, and the mass percentage of the polysiloxane in the preparation raw material ranges from 3 to 74 %,
  • the siloxane containing low surface energy side chains accounts for the mass percentage of the prepared raw material in the range of 0.01-20%.
  • the polysiloxane and polysilazane can be placed in the reactor, and the polysiloxane and polysilazane can be stirred for the first time to make the polysiloxane and polysilazane
  • the alkane is mixed evenly, and the polysiloxane and polysilazane will undergo a copolymerization reaction to form a polysiloxane-polysilazane copolymer.
  • the stirring rate of the first stirring process is 100-800 rpm, optionally 200-600 rpm, and more preferably 400-500 rpm.
  • the copolymerization reaction time may be 10 seconds to 50 minutes, and the copolymerization reaction time may be adjusted according to actual production needs.
  • stirring rate of the first stirring process and the time of the copolymerization reaction can also be other values, which is not limited in this application.
  • the raw materials for preparing the coating composition of the technical solution of the present application include polysilazane, polysiloxane, and siloxane containing a side chain with low surface energy.
  • the polysilazane and polysiloxane will undergo a copolymerization reaction to form poly Silazane-polysiloxane copolymer.
  • the polysilazane-polysiloxane copolymer has the advantages of high hardness, good adhesion and good temperature resistance, so that the coating formed from the coating composition has the advantages of high hardness, good adhesion and good temperature resistance.
  • the polysilazane-polysiloxane copolymer is further mixed with a siloxane containing a low surface energy side chain, and the siloxane containing a low surface energy side chain can make the coating layer formed by the coating composition further have The advantages of easy cleaning.
  • the polysilazane, polysiloxane, polysilazane-polysiloxane copolymer, and siloxanes with low surface energy side chains are not toxic and harmful substances, and the preparation of the coating composition No toxic and harmful substances are produced during the process, so that the coating made from the coating composition also has the advantage of food contact safety.
  • the method for preparing the coating composition further includes the step of adding a catalyst to the polysilazane and polysiloxane, wherein the catalyst accounts for The mass percentage ranges from 0.01 to 5%, optionally from 0.1 to 5%, more preferably from 1 to 5%, and further from 2 to 3%.
  • the catalyst is an amine catalyst and / or a metal catalyst.
  • the second stirring treatment is performed to make the polysilazane, the polysiloxane and the catalyst uniformly mixed.
  • the stirring rate of the second stirring process may be 1000-2000 rpm, may be 1200-1800 rpm, and may be 1500-1600 rpm.
  • the time of the second stirring treatment may be 10 seconds to 50 minutes, optionally 5 to 15 minutes, and more optionally 8 to 12 minutes.
  • stirring rate of the second stirring process and the time of the second stirring process may also be other values, which is not limited in this application.
  • a catalyst may be added to promote the copolymerization reaction of polysiloxane and polysilazane to form the host resin required by the present application, that is, polysiloxane-polysilazane copolymer.
  • the method for preparing the coating composition further includes: adding a solvent to the polysilazane-polysiloxane copolymer and And / or filler steps.
  • the mass percentage of the solvent to the prepared raw material ranges from 10 to 66%, optionally from 15 to 50%, more preferably from 20 to 40%, and further from 30 to 35%.
  • the range of the mass percentage of the filler in the prepared raw material is 1-50%, optionally 5-40%, optionally 10-30%, and more optionally 15-25%.
  • the solvent may be selected from at least one of alkane solvents, ether solvents, ketone solvents, and benzene derivative solvents.
  • the filler may be selected from at least one of silicon carbide, aluminum oxide, titanium oxide, zinc oxide, magnesium oxide, aluminum hydroxide, white carbon, attapulgite, kaolin, bentonite, glass microspheres, and ceramic microspheres.
  • the polysilazane-polysiloxane copolymer after adding a solvent and a filler to the polysilazane-polysiloxane copolymer, it may be subjected to a third stirring treatment to make the polysilazane-polysiloxane copolymer , Solvent and filler are mixed evenly.
  • a solvent and a siloxane containing a low surface energy side chain can be added to the polysilazane-polysiloxane copolymer first, and then a filler is added to perform the third stirring treatment.
  • the polysilazane-polysiloxane copolymer may also be added with a solvent, a filler and a siloxane containing a side chain with low surface energy at the same time, and subjected to a third stirring treatment. It is also possible to add a solvent to the polysilazane-polysiloxane copolymer first, then add a filler and a siloxane containing a side chain with low surface energy, and perform a third stirring treatment on it. Alternatively, only the siloxane containing a low surface energy side chain and the solvent / filler are added to the polysilazane-polysiloxane copolymer, and then the third stirring treatment is performed.
  • the stirring rate of the third stirring treatment may be 100-3000 rpm, optionally 500-2000 rpm, and more preferably 1000-1500 rpm.
  • the time of the third stirring treatment may be 2-20 minutes, optionally 5-15 minutes, and more optionally 8-12 minutes.
  • stirring rate of the third stirring process and the time of the third stirring process may also be other values, which is not limited in this application.
  • the particle size of the filler may be less than 3 microns, optionally less than 2 microns, and even more preferably 1 microns.
  • the particle size of the filler ranges from 0.2 to 0.8 microns. Understandably, the particle size of the filler is 0.2 microns, 0.3 microns, 0.4 microns, 0.5 microns, 0.6 microns, 0.7 microns, or 0.8 microns.
  • the filler when the particle size range of the filler is set to 0.2-0.8 microns, the filler can be uniformly dispersed in the coating composition, and the surface of the prepared coating is relatively smooth.
  • the particle size of the filler is in the range of 0.2-0.5 microns to obtain a smoother coating.
  • the filler may be ground by a grinder to reduce the particle size of the filler, and then the filler after grinding treatment is added to the polysilazane-polysiloxane copolymer.
  • a filler with a larger particle size can be directly added to the polysilazane-polysiloxane copolymer, and then the coating initial product is subjected to grinding treatment to reduce the coating composition The particle size of the filler.
  • the grinding time may be 30-60 minutes, optionally 40-50 minutes.
  • the grinding time can be adjusted according to actual needs to obtain fillers with corresponding particle sizes.
  • the polysilazane-polysiloxane copolymer is soluble in a solvent, so that the coating composition can be more easily applied to the surface of the substrate.
  • the filler may also be dispersed in the solvent and polysilazane-polysiloxane copolymer to increase the hardness, adhesion, and temperature resistance of the coating composition.
  • the method for preparing the coating composition further includes: adding a colorant to the polysilazane-polysiloxane copolymer A step of.
  • the mass percentage of the color material in the prepared raw material ranges from 0.01 to 15%, from 1 to 15%, more optionally from 5 to 15%, and further from 10 to 15%.
  • the mass percentage of the polysilazane in the preparation raw material ranges from 7 to 60%, and the mass percentage of the polysiloxane in the preparation raw material ranges from 3 to 40 %,
  • the siloxane containing low surface energy side chains accounts for 0.01% to 15% of the mass percentage of the preparation raw material, and the color material accounts for the mass percentage of the preparation raw material to range from 0.01 to 5%.
  • the colorant is selected from at least one of white colorant, yellow colorant, orange colorant, black colorant, purple colorant, brown colorant, green colorant, blue colorant, gray colorant, and red colorant Species.
  • the coating prepared by the coating composition can have a colorful appearance.
  • the coating composition may be subjected to grinding treatment to further reduce the particle size of each component in the coating composition.
  • the present application also provides a coated article, the coated article including a substrate, and a coating layer formed on the surface of the substrate, the coating layer containing the coating composition.
  • the coating composition may be applied to the surface of the substrate to form the coating.
  • the coating made from the coating composition has a thermal weight loss of less than 5% in an oxygen environment at 500 ° C, indicating that the coating has very excellent heat resistance.
  • the thickness of the coating is in the range of 1 to 100 microns, optionally 5 to 60 microns, more preferably 10 to 50 microns, and further preferably 20 to 30 microns.
  • the thickness of the coating can be adjusted according to actual needs.
  • the thickness of the coating may be 1 micrometer, 2 micrometers, 5 micrometers, 10 micrometers, 20 micrometers, 50 micrometers, or 100 micrometers.
  • the thickness of the coating may range from 1 to 100 micrometers. After the coating of the above thickness is formed on the surface of the substrate, the coating can effectively protect the substrate, so that the coated part has It has the advantages of high hardness, high temperature resistance, easy cleaning, good adhesion, and food safety level.
  • the present application also provides a method for preparing a coated part, including the following steps:
  • the coating composition is applied to the surface of the substrate to prepare the coated article.
  • the coating composition may be subjected to grinding treatment to reduce agglomeration, and then the coating composition after grinding treatment may be applied to the surface of the substrate.
  • the coating composition when the coating composition is applied to the surface of the substrate, the substrate is subjected to a heat treatment, and the temperature of the heat treatment is lower than 300 ° C, optionally 100 ° C to 280 ° C, and more optionally 120 to 150 °C, to cure the coating composition on the surface of the substrate to form a coating.
  • the thickness of the coating can range from 1 to 100 microns.
  • the substrate may be pre-treated, and the pre-treatment may be degreasing, cleaning, and drying to clean the surface of the substrate and improve the adhesion of the coating to the surface of the substrate.
  • the coating composition can be directly applied to the surface of the substrate, and the coated part can be prepared after the coating composition is cured, so that the method for preparing the coated part of the present application has a simple molding process
  • the temperature of the curing process is lower than 300 ° C.
  • the method for preparing a coated article of the present application also has the advantage of low energy consumption.
  • the method for preparing the coated article of the present application also has the advantages of environmental protection.
  • the present application also provides a household appliance including the coating member.
  • the household appliance may be a microwave oven, an induction cooker, an oven, a bread machine, a pasta machine, a cooker hood, an air explosion pan, a cake stall, a humidifier, an electric kettle, a hair dryer, a juicer, a pressure cooker, a rice cooker, a water heater, a computer, Electric fan, electric frying pan, soy milk maker, air conditioner, speaker, stove, or refrigerator, etc.
  • the coating member may be a housing of a household appliance.
  • the coating member may be an outer shell or an inner shell of a home appliance.
  • the coating member when the household appliance is a heating appliance such as a microwave oven, an air explosion pan, or an oven, the coating member may be an inner cavity or a heating plate of the microwave oven or oven.
  • the raw materials for the preparation of the coating composition are not substances restricted or prohibited by domestic and foreign regulations, and neither during the preparation of the coating composition nor during the preparation of the coated part Harmful substances are generated, so that the coating composition, coating, coated parts and electronic devices all have the characteristics of safety and environmental protection.
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • R 1 of the polysilazane is a hydrogen group
  • R 2 is a hydrogen group
  • R 3 is a hydrogen group
  • the polysilazane accounts for 40% of the mass percentage of the prepared raw material
  • Triethoxy [4- (trifluoromethyl) phenyl] silane which accounts for 20% of the mass percentage of the prepared raw material.
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • R 1 of the polysilazane is an aryl group
  • R 2 is a hydrogen group
  • R 3 is an alkylamine group
  • the polysilazane accounts for 35% of the mass percentage of the prepared raw material
  • Polysiloxane wherein R 4 of the polysiloxane is cycloalkane and R 5 is an alkylsiloxy group, and the range of the mass percentage of the polysiloxane in the preparation raw material is 20%;
  • Dibutyl tin dilaurate which accounts for 3% of the mass percentage of the prepared raw material.
  • dibutyltin dilaurate to the polysiloxane and polysilazane at a speed of 1600 rpm, and dibutyltin dilaurate promotes the interaction between polysiloxane and polysilazane Copolymerization to form polysiloxane-polysilazane copolymer;
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • Polysilazane wherein R 1 of the polysilazane is an alkene, R 2 is an alkylsiloxane, and R 3 is an alkane, and the polysilazane accounts for 32% of the mass of the prepared raw material. %,
  • Isophorone which accounts for 4% of the mass percentage of the prepared raw material
  • Alumina which accounts for 10% of the mass percentage of the prepared raw material, and the particle size of the alumina is 2.6 to 3.3 microns;
  • Silicon carbide which accounts for 10% of the mass percentage of the prepared raw material, and the particle size of the aluminum oxide ranges from 2.5 to 3.6 microns;
  • Dimethyl tin which accounts for 3% of the mass percentage of the prepared raw material.
  • dimethyl tin can promote the copolymerization reaction between polysiloxane and polysilazane, Generate polysiloxane-polysilazane copolymer;
  • the primary coating product is subjected to grinding treatment so that the particle size of alumina and silicon carbide ranges from 0.21 to 0.45 microns to obtain a coating composition.
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • R 1 of the polysilazane is a hydrogen group
  • R 2 is a cycloalkane
  • R 3 is a hydrogen group
  • the polysilazane accounts for 30% of the mass percentage of the prepared raw material
  • Polysiloxane wherein R 4 of the polysiloxane is an alkylamine group and R 5 is an alkoxy group, and the range of the mass percentage of the polysiloxane in the preparation raw material is 15%;
  • Petroleum ether which accounts for the mass percentage of the prepared raw material in the range of 3%;
  • Alumina which accounts for 11% of the mass percentage of the prepared raw materials, and the particle size of the alumina ranges from 2.1 to 3 microns;
  • Nickel antimony titanate which accounts for the mass percentage of the prepared raw material in the range of 3%;
  • White carbon black which accounts for 15% of the mass percentage of the prepared raw material, and the particle size of the white carbon black ranges from 2.2 to 3 microns;
  • the palladium acetate salt accounts for 2% of the mass percentage of the prepared raw material.
  • the palladium acetate can promote the copolymerization reaction between polysiloxane and polysilazane to form poly Siloxane-polysilazane copolymer;
  • the primary coating product is ground to make the particle size of alumina and white carbon range from 0.21 to 0.35 microns to obtain a coating composition.
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • Polysilazane wherein R 1 of the polysilazane is an alkylamine group, R 2 is an alkyl group, and R 3 is an aryl group, and the mass percentage of the polysilazane in the preparation raw material is 28% ,
  • Trifluoromethyltetrafluorophenyltriethoxysilane which accounts for 11% of the mass percentage of the prepared raw material
  • N-hexane which accounts for 10% of the mass percentage of the prepared raw material
  • Acetone which accounts for 12% of the mass percentage of the prepared raw material
  • Attapulgite which accounts for the mass percentage of the prepared raw material in the range of 4%, and the particle size of the attapulgite is in the range of 2.5-3 microns;
  • White carbon black which accounts for 4% of the mass percentage of the prepared raw material, and the particle size of the white carbon black ranges from 2 to 3.2 microns;
  • Magnesium oxide which accounts for 14% of the mass percentage of the prepared raw materials, and the particle size of the magnesium oxide ranges from 0.25 to 0.35 microns;
  • Barium sulfate which accounts for 3% of the mass percentage of the prepared raw material
  • Triethylenetetramine which accounts for the mass percentage of the prepared raw material in the range of 2%.
  • triethylenetetramine can promote the copolymerization reaction between polysiloxane and polysilazane, Generate polysiloxane-polysilazane copolymer;
  • the primary coating product is ground to make the particle size of the attapulgite and white carbon black range from 0.2 to 0.25 microns to obtain a coating composition.
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • R 1 of the polysilazane is an aryl group
  • R 2 is an aryl group
  • R 3 is a hydrogen group
  • the polysilazane accounts for 25% of the mass percentage of the prepared raw material
  • Methyl ethyl ketone which accounts for 11% of the mass percentage of the prepared raw material
  • M-xylene which accounts for the mass percentage of the prepared raw material in the range of 7%
  • Alumina which accounts for 30% of the mass of the prepared raw material, and a particle size of the alumina, which ranges from 0.24 to 0.33 microns; titanium oxide, which accounts for 3% of the prepared raw material , The particle size of the alumina ranges from 0.21 to 0.32 microns;
  • Bentonite which accounts for the mass percentage of the prepared raw material in the range of 3%, and the particle size of the bentonite ranges from 0.25 to 0.35 microns;
  • Triphenyltin which accounts for 2% of the mass percentage of the prepared raw material.
  • triphenyltin can promote the copolymerization reaction between polysiloxane and polysilazane, Generating polysiloxane-polysilazane copolymer
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • Polysilazane wherein R 1 of the polysilazane is an alkane, R 2 is an alkane, and R 3 is a hydrogen group, the polysilazane accounts for 23% of the mass percentage of the prepared raw material,
  • Alumina which accounts for 17% of the mass percentage of the prepared raw material, and the particle size of the alumina is 2.5 to 3 microns;
  • Zinc oxide which accounts for the mass percentage of the prepared raw material in the range of 5%, and the particle size of the zinc oxide in the range of 2 to 3 microns;
  • Ceramic microspheres which account for 3% of the mass percentage of the prepared raw material, and the particle diameter of the ceramic microspheres ranges from 0.2 to 0.3 microns;
  • the palladium acetate salt accounts for 2% of the mass percentage of the prepared raw material.
  • the palladium acetate salt can promote the copolymerization reaction between polysiloxane and polysilazane Siloxane-polysilazane copolymer;
  • the primary coating product is ground to make the particle size of alumina and zinc oxide range from 0.2 to 0.25 microns, and then ceramic microspheres are added to obtain a coating composition.
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • R 1 of the polysilazane is an alkene
  • R 2 is an aryl group
  • R 3 is a hydrogen group
  • the polysilazane accounts for 20% of the mass percentage of the prepared raw material
  • Polysiloxane wherein R 4 of the polysiloxane is an alkane and R 5 is an alkane, and the mass percentage of the polysiloxane to the raw material for the preparation is 5%;
  • White carbon black which accounts for 10% of the mass percentage of the prepared raw material, and the particle size of the alumina ranges from 2.5 to 3 microns;
  • Aluminum hydroxide which accounts for 12% of the mass percentage of the prepared raw material, and the particle size of the aluminum oxide ranges from 2 to 3 microns;
  • Glass microspheres which account for 2% of the mass percentage of the prepared raw materials, and the particle size of the alumina ranges from 0.2 to 0.3 microns;
  • N, N-dimethylaniline which accounts for 1% of the mass percentage of the prepared raw material.
  • N, N-dimethylaniline can promote polysiloxane and polysilicon Copolymerization of azanes to form polysiloxane-polysilazane copolymer;
  • the primary coating product is ground to make the particle size of white carbon black and aluminum hydroxide range from 0.2 to 0.25 microns, and then glass microspheres are added to obtain a coating composition.
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • R 1 of the polysilazane is a hydrogen group
  • R 2 is a hydrogen group
  • R 3 is a hydrogen group
  • the polysilazane accounts for 30% of the mass percentage of the prepared raw material
  • Triethoxy [4- (trifluoromethyl) phenyl] silane which accounts for 10% of the mass percentage of the prepared raw material
  • Triethylenediamine which accounts for 3% of the mass percentage of the prepared raw material.
  • Triethylenediamine can promote the copolymerization between polysiloxane and polysilazane Reaction to form polysiloxane-polysilazane copolymer;
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • R 1 of the polysilazane is a hydrogen group
  • R 2 is a hydrogen group
  • R 3 is a hydrogen group
  • the polysilazane accounts for 40% of the mass percentage of the prepared raw material
  • Triethoxy [4- (trifluoromethyl) phenyl] silane which accounts for 10% of the mass percentage of the prepared raw material
  • Triethylenediamine which accounts for 3% of the mass percentage of the prepared raw material.
  • triethylenediamine added to the polysiloxane and polysilazane, stirring at 1400 rpm, triethylenediamine can promote the copolymerization between polysiloxane and polysilazane React to form a polysiloxane-polysilazane copolymer;
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • R 1 of the polysilazane is a hydrogen group
  • R 2 is a hydrogen group
  • R 3 is a hydrogen group
  • the polysilazane accounts for 20% of the mass percentage of the prepared raw material
  • Triethoxy [4- (trifluoromethyl) phenyl] silane which accounts for 10% of the mass percentage of the prepared raw material
  • Triethylenediamine which accounts for 3% of the mass percentage of the prepared raw material.
  • triethylenediamine added to the polysiloxane and polysilazane, stirring at 1400 rpm, triethylenediamine can promote the copolymerization between polysiloxane and polysilazane Reaction to form polysiloxane-polysilazane copolymer;
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • R 1 of the polysilazane is a hydrogen group
  • R 2 is a hydrogen group
  • R 3 is a hydrogen group
  • the polysilazane accounts for 40% of the mass percentage of the prepared raw material
  • Triethoxy [4- (trifluoromethyl) phenyl] silane which accounts for 10% of the mass percentage of the prepared raw material
  • Silicon carbide which accounts for the mass percentage of the prepared raw material in the range of 5%, and the particle diameter of the silicon carbide in the range of 2.5 to 3 microns;
  • Titanium manganese brown which accounts for 3% of the mass percentage of the prepared raw material
  • Zinc iron chromium brown which accounts for 1% of the mass percentage of the prepared raw material
  • Triethylenediamine which accounts for 3% of the mass percentage of the prepared raw material.
  • triethylenediamine can promote the copolymerization between polysiloxane and polysilazane Reaction to form polysiloxane-polysilazane copolymer;
  • the primary coating product is subjected to grinding treatment so that the particle size of silicon carbide ranges from 0.5 to 0.75 microns to obtain a coating composition.
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • R 1 of the polysilazane is a hydrogen group
  • R 2 is a hydrogen group
  • R 3 is a hydrogen group
  • the polysilazane accounts for 40% of the mass percentage of the prepared raw material
  • Triethoxy [4- (trifluoromethyl) phenyl] silane which accounts for 10% of the mass percentage of the prepared raw material
  • Alumina which accounts for the mass percentage of the prepared raw material in the range of 5%, and the particle size of the alumina in the range of 0.25 to 0.33 microns;
  • Triethylenediamine which accounts for 3% of the mass percentage of the prepared raw material.
  • triethylenediamine can promote the copolymerization between polysiloxane and polysilazane Reaction to form polysiloxane-polysilazane copolymer;
  • alumina is added at a rate of 2500 rpm Come and stir to get the coating composition.
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • R 1 of the polysilazane is a hydrogen group
  • R 2 is a hydrogen group
  • R 3 is a hydrogen group
  • the polysilazane accounts for 40% of the mass percentage of the prepared raw material
  • Triethoxy [4- (trifluoromethyl) phenyl] silane which accounts for 10% of the mass percentage of the prepared raw material
  • Silicon carbide which accounts for the mass percentage of the prepared raw material in the range of 5%, and the particle diameter of the silicon carbide in the range of 2 to 3 microns;
  • Dimethyl tin which accounts for 3% of the mass percentage of the prepared raw material.
  • dimethyl tin can promote the copolymerization reaction between polysiloxane and polysilazane, Generate polysiloxane-polysilazane copolymer;
  • the primary coating product is ground to make the particle size of silicon carbide range from 0.8 to 0.9 microns to obtain a coating composition.
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • R 1 of the polysilazane is a hydrogen group
  • R 2 is a hydrogen group
  • R 3 is a hydrogen group
  • the polysilazane accounts for 17% of the mass percentage of the prepared raw material
  • Silicon carbide which accounts for 25% of the mass percentage of the prepared raw material, and the particle size of the silicon carbide ranges from 0.2 to 0.3 microns;
  • Triethylenediamine which accounts for 1% of the mass percentage of the prepared raw material.
  • triethylenediamine can promote the copolymerization between polysiloxane and polysilazane Reaction to form polysiloxane-polysilazane copolymer;
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • Polysilazane wherein R 1 of the polysilazane is a hydrogen group, R 2 is an alkane, and R 3 is a hydrogen group, and the polysilazane accounts for 12% of the mass percentage of the prepared raw material,
  • Silicon carbide which accounts for 25% of the mass percentage of the prepared raw material, and the particle size of the silicon carbide ranges from 1 to 2 microns;
  • Triethylenediamine which accounts for 1% of the mass percentage of the prepared raw material.
  • triethylenediamine added to the polysiloxane and polysilazane, stirring at 1800 rpm, triethylenediamine can promote the copolymerization between polysiloxane and polysilazane Reaction to form polysiloxane-polysilazane copolymer;
  • the primary coating product is subjected to grinding treatment so that the particle size of silicon carbide ranges from 0.21 to 0.32 micrometers to prepare the coating composition.
  • the preparation method of the coating composition includes the following steps:
  • preparation materials include:
  • R 1 of the polysilazane is a hydrogen group
  • R 2 is an alkane
  • R 3 is a hydrogen group
  • the polysilazane accounts for 7% of the mass of the prepared raw material
  • Silicon carbide which accounts for 25% of the mass percentage of the prepared raw material, and the particle size of the silicon carbide ranges from 1 to 2 microns;
  • Triethylenediamine which accounts for 1% of the mass percentage of the prepared raw material.
  • Triethylenediamine can promote the copolymerization between polysiloxane and polysilazane Reaction to form polysiloxane-polysilazane copolymer;
  • the primary coating product is ground to make the particle size of silicon carbide reach 0.2-0.3 microns, and the coating composition is prepared.
  • Sample 4 8 0 1.62 122 Sample 5 8 0 1.60 120 Sample 6 7 0 2.01 108 Sample 7 7 0 2.07 108 Sample 8 7 0 2.25 107 Sample 9 8 0 1.88 116 Sample 10 9 0 1.14 118 Sample 11 8 0 1.77 115 Sample 12 9 0 1.13 122 Sample 13 9 0 1.14 120 Sample 14 9 0 1.15 119 Sample 15 7 0 1.21 100 Sample 16 6 0 1.25 100 Sample 17 6 0 1.09 100
  • the water contact angle of Samples 1-17 was tested using the profile image analysis method.
  • the water contact angle of Samples 1-17 was greater than 90 °, indicating that Samples 1-17 all had the advantage of being easy to clean.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Paints Or Removers (AREA)

Abstract

L'invention concerne un composé de revêtement, un procédé de préparation du composé de revêtement, un composant revêtu fabriqué à partir dudit composé de revêtement, un procédé de préparation du composant revêtu, et un appareil électroménager utilisant ledit composant revêtu. Les matières premières pour la préparation du composé de revêtement comprennent un polysilazane, un polysiloxane et un siloxane contenant une chaîne latérale à faible énergie de surface. Une réaction de polymérisation se produit entre le polysilazane et le polysiloxane pour produire un copolymère polysilazane-polysiloxane, et le siloxane contenant une chaîne latérale à faible énergie de surface est mélangé avec le copolymère polysilazane-polysiloxane.
PCT/CN2019/109981 2018-10-08 2019-10-08 Composé de revêtement et sa préparation, composant revêtu et son procédé de préparation, et appareil électroménager WO2020073892A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201811172189.7 2018-10-08
CN201811172190.XA CN109401621A (zh) 2018-10-08 2018-10-08 涂料组合物及其制备方法、涂覆件及其制备方法、家用电器
CN201811172189.7A CN109401620A (zh) 2018-10-08 2018-10-08 涂料组合物及其制备方法、涂覆件及其制备方法、家用电器
CN201811172190.X 2018-10-08

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WO2020073892A1 true WO2020073892A1 (fr) 2020-04-16

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Citations (8)

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Publication number Priority date Publication date Assignee Title
US20020165319A1 (en) * 2001-02-26 2002-11-07 Knasiak Gary J. Polysilazane/polysiloxane block copolymers
CN1630578A (zh) * 2001-05-07 2005-06-22 基昂公司 热稳定、可湿固化的聚硅氮烷和聚硅氧氮烷
CN102399447A (zh) * 2011-09-19 2012-04-04 中国科学院化学研究所 非粘结型耐高温有机硅密封剂及其制备方法
US20130102728A1 (en) * 2010-06-30 2013-04-25 3M Innovative Properties Company Curable composition comprising dual reactive silane functionality
CN103205201A (zh) * 2013-01-22 2013-07-17 浙江鹏孚隆科技有限公司 不粘陶瓷涂料及其涂覆方法
US9935246B2 (en) * 2013-12-30 2018-04-03 Cree, Inc. Silazane-containing materials for light emitting diodes
CN109401621A (zh) * 2018-10-08 2019-03-01 广东美的厨房电器制造有限公司 涂料组合物及其制备方法、涂覆件及其制备方法、家用电器
CN109401620A (zh) * 2018-10-08 2019-03-01 广东美的厨房电器制造有限公司 涂料组合物及其制备方法、涂覆件及其制备方法、家用电器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020165319A1 (en) * 2001-02-26 2002-11-07 Knasiak Gary J. Polysilazane/polysiloxane block copolymers
CN1630578A (zh) * 2001-05-07 2005-06-22 基昂公司 热稳定、可湿固化的聚硅氮烷和聚硅氧氮烷
US20130102728A1 (en) * 2010-06-30 2013-04-25 3M Innovative Properties Company Curable composition comprising dual reactive silane functionality
CN102399447A (zh) * 2011-09-19 2012-04-04 中国科学院化学研究所 非粘结型耐高温有机硅密封剂及其制备方法
CN103205201A (zh) * 2013-01-22 2013-07-17 浙江鹏孚隆科技有限公司 不粘陶瓷涂料及其涂覆方法
US9935246B2 (en) * 2013-12-30 2018-04-03 Cree, Inc. Silazane-containing materials for light emitting diodes
CN109401621A (zh) * 2018-10-08 2019-03-01 广东美的厨房电器制造有限公司 涂料组合物及其制备方法、涂覆件及其制备方法、家用电器
CN109401620A (zh) * 2018-10-08 2019-03-01 广东美的厨房电器制造有限公司 涂料组合物及其制备方法、涂覆件及其制备方法、家用电器

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