CN109401618A - Coating composition and preparation method thereof, coating piece and preparation method thereof, household electrical appliance - Google Patents
Coating composition and preparation method thereof, coating piece and preparation method thereof, household electrical appliance Download PDFInfo
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- CN109401618A CN109401618A CN201811172160.9A CN201811172160A CN109401618A CN 109401618 A CN109401618 A CN 109401618A CN 201811172160 A CN201811172160 A CN 201811172160A CN 109401618 A CN109401618 A CN 109401618A
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- China
- Prior art keywords
- polysilazane
- coating composition
- polysiloxanes
- raw material
- range
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/10—Block or graft copolymers containing polysiloxane sequences
Abstract
The present invention provides the household electrical appliance of a kind of coating composition, the preparation method of the coating composition, the coating piece as obtained by the coating composition, the preparation method and application of the coating piece coating piece.The raw material for preparing of the coating composition includes polysilazane and polysiloxanes, and the polysilazane and polysiloxanes are copolymerized generation polysilazane-polysiloxane copolymer.Present invention coating as obtained by the coating composition has the advantages that hardness is high, adhesion is good, temperature tolerance is good and food touch-safe.
Description
Technical field
The present invention relates to the preparations of field of home appliance technology more particularly to a kind of coating composition, the coating composition
Method, the coating piece as obtained by the coating composition, the preparation method and application of the coating piece coating piece household electrical appliance.
Background technique
In micro- roasting field, it usually needs form coating in the surface of kitchen appliance class product.The material of above-mentioned coating is main are as follows: porcelain
(side dusted can be used in glaze (enamel can be formed in product surface by enamel technology), organosilicon, Teflon, epoxy powder
The epoxy powder is sprayed at product surface by formula) or silica solution+organic-silicon hybridization coating.However, above-mentioned coating has hardness
Low, the disadvantages of adhesion is poor, temperature tolerance is poor and there are food touch-safe hidden danger.
Summary of the invention
The main purpose of the present invention is to provide a kind of coating compositions, it is intended to make the painting as obtained by the coating composition
Layer has the advantages that hardness is high, adhesion is good, temperature tolerance is good and can reach food touch-safe rank.
In order to solve the above technical problems, the raw material for preparing of coating composition provided by the invention includes polysilazane and poly- silicon
Oxygen alkane, the polysilazane and polysiloxanes are copolymerized generation polysilazane-polysiloxane copolymer.
Further, it is 6~96% that the polysilazane, which accounts for the range of the mass percent for preparing raw material, described poly-
The range that siloxanes accounts for the mass percent for preparing raw material is 4~94%.
Further, the structural formula of the polysilazane are as follows:Wherein, R1For hydrogen-based, alkane, cycloalkane,
Olefine, aryl, alkoxy, alkyl siloxy or alkylamino radical, R2For hydrogen-based, alkane, cycloalkane, olefine, aryl, alcoxyl
Base, alkyl siloxy or alkylamino radical, R3For hydrogen-based, alkane, cycloalkane, olefine, aryl, alkoxy, alkyl siloxy or
Alkylamino radical.
Further, the R1And R2At least one of be hydrogen-based or olefine.
Further, the molecular weight of the polysilazane is 100~1000.
Further, the structural formula of the polysiloxanes are as follows:Wherein, R4For hydrogen-based, alkane, cycloalkanes
Hydrocarbon, olefine, aryl, alkoxy or alkyl siloxy, R5For hydrogen-based, alkane, cycloalkane, olefine, aryl, alkoxy or
Alkyl siloxy.
Further, the molecular weight of the polysiloxanes is 100~1300.
Further, the raw material for preparing of the coating composition further includes solvent, and the solvent accounts for the coating composition
Mass percent range be 10~66%, the solvent be selected from alkane solvents, ether solvent, ketones solvent and benzene spread out
At least one of biological species solvent.
Further, the alkane solvents are selected from n-hexane, normal octane, n-decane, chloroform, methylene chloride, two
At least one of vinyl chloride and mineral oil are a variety of；The ether solvent in ether, petroleum ether and butyl oxide extremely
Few one kind；The ketones solvent is selected from least one of acetone, methyl ethyl ketone, cyclohexanone and isophorone；The benzene derivative
Class solvent is selected from least one of toluene, meta-xylene, paraxylene, ortho-xylene and chlorobenzene.
Further, the raw material for preparing of the coating composition further includes catalyst, and it is former that the catalyst accounts for the preparation
The range of the mass percent of material is 0.01~5%, and the catalyst is amines catalyst and/or metal-based catalysts.
Further, the amines catalyst is selected from one of fatty amine, cycloaliphatic amines, hydramine and aromatic amine or more
Kind, the fatty amine is selected from least one of diethylamine, triethylamine and triethylene tetramine；The cycloaliphatic amines are selected from Sanya
At least one of ethyldiamine, piperazine, piperidines and morpholine；The hydramine is selected from N, N- dimethylethanolamine, diisopropanol
Amine and N, at least one of N- diethyl ethylene diamine；The aromatic amine is selected from aniline, o-phenylenediamine, benzidine and N, N- bis-
At least one of methylaniline.
Further, the metal-based catalysts be organotin catalysts and/or palladium class catalyst, it is described organotin catalyzed
Agent is selected from least one of dibutyltindilaurylmercaptide cinnamic acid rouge, stannous octoate, stannous methide and triphenyltin；The palladium class is urged
Agent is selected from least one of carbon/palladium, palladium chloride, propionic acid palladium salt, acetic acid palladium salt and triphenyl phosphorus palladium.
Further, the raw material for preparing of the coating composition further includes filler, and the filler accounts for the raw material for preparing
The range of mass percent is 1~50%, and the filler is selected from silicon carbide, aluminium oxide, titanium oxide, zinc oxide, magnesia, hydrogen-oxygen
Change at least one of aluminium, white carbon black, concave convex rod, kaolin, bentonite, glass microsphere and ceramic microsphere.
Further, the raw material for preparing of the coating composition further includes catalyst and filler, and the catalyst accounts for described
The range of the mass percent of coating composition is 10~66%, and the filler accounts for the mass percent of the coating composition
Range is 10~66%, and the range that the polysiloxanes and polysilazane account for the mass percent of the coating composition is 10%
~80%.
The present invention also provides a kind of preparation methods of coating composition, comprising the following steps:
Offer prepares raw material, and the raw material for preparing includes: polysilazane and polysiloxanes；
Mixing polysilazane and polysiloxanes, polysilazane and polysiloxanes are copolymerized, and it is poly- to generate polysilazane-
The coating composition is made in silicone copolymers.
Further, after mixing polysilazane and polysiloxanes, the preparation method of the coating composition further include: Xiang Ju
The step of catalyst is added in silazane and polysiloxanes, wherein the catalyst accounts for the mass percent for preparing raw material
Range be 0.01~5%, the catalyst be amines catalyst and/or metal-based catalysts.
Further, after generating polysilazane-polysiloxane copolymer, before the coating composition is made, the coating
The preparation method of composition further include: the step of solvent is added into polysilazane-polysiloxane copolymer, wherein described molten
Agent account for the mass percent for preparing raw material range be 10~66%, the solvent be selected from alkane solvents, ether solvent,
At least one of ketones solvent and benzenesulfonamide derivative species solvent.
Further, after generating polysilazane-polysiloxane copolymer, before the coating composition is made, the coating
The preparation method of composition further include: the step of filler is added into polysilazane-polysiloxane copolymer, wherein described to fill out
Material account for the mass percent for preparing raw material range be 1~50%, the filler be selected from silicon carbide, aluminium oxide, titanium oxide,
In zinc oxide, magnesia, aluminium hydroxide, white carbon black, concave convex rod, kaolin, bentonite, glass microsphere and ceramic microsphere extremely
Few one kind.
The present invention also provides a kind of coating piece, the coating piece includes matrix and the coating for being formed in matrix surface, described
Contain the coating composition in coating.
Further, the range of the thickness of the coating is 1~100 micron.
The present invention also provides a kind of preparation methods of coating piece, comprising the following steps:
Matrix and the coating composition are provided；
By the coating composition in the surface of matrix, the coating piece is made.
The present invention also provides a kind of household electrical appliance, the household electrical appliance include the coating piece.
The raw material for preparing of the coating composition of technical solution of the present invention includes polysilazane and polysiloxanes.The polysilazane
It can be copolymerized with polysiloxanes and generate polysilazane-polysiloxane copolymer.The polysilazane-polysiloxanes copolymerization
Object has the advantages that hardness is high, adhesion is good and temperature tolerance is good, and the polysilazane, polysiloxanes and the poly- silicon of polysilazane-
Siloxane copolymers are not belonging to poisonous and harmful substance, so that the coating as made from the coating composition has, hardness is high, adhesion is good,
The advantages of temperature tolerance is good and food touch-safe.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining relative positional relationship, motion conditions etc. between component each under a certain particular pose, if the particular pose occurs
When change, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
The present invention provides a kind of coating composition.
The raw material for preparing of the coating composition includes polysilazane and polysiloxanes, the polysilazane and polysiloxanes
It is copolymerized generation polysilazane-polysiloxane copolymer.
The raw material for preparing of the coating composition of technical solution of the present invention includes polysilazane and polysiloxanes.The polysilazane
It can be copolymerized with polysiloxanes and generate polysilazane-polysiloxane copolymer.The polysilazane-polysiloxanes copolymerization
Object has the advantages that hardness is high, adhesion is good and temperature tolerance is good, and the polysilazane, polysiloxanes and the poly- silicon of polysilazane-
Siloxane copolymers are not belonging to poisonous and harmful substance, so that the coating as made from the coating composition has, hardness is high, adhesion is good,
The advantages of temperature tolerance is good and reaches food touch-safe rank.
The range that the polysilazane accounts for the mass percent for preparing raw material is 6~96%, and the polysiloxanes accounts for
The range of the mass percent for preparing raw material is 4~94%.
In an embodiment of the present invention, the polysilazane account for the mass percent for preparing raw material range be 6~
96%.Preferably, it is 10~80% that the polysilazane, which accounts for the range of the mass percent for preparing raw material, more preferably
15~60%, further preferably 20~50%.
In an embodiment of the present invention, the polysiloxanes account for the mass percent for preparing raw material range be 4~
94%.Preferably, it is 10~70% that the polysiloxanes, which accounts for the range of the mass percent for preparing raw material, more preferably
15~60%, further preferably 20~50%.
The range that the polysilazane of technical solution of the present invention accounts for the mass percent for preparing raw material is 6~96%, institute
Stating polysiloxanes and accounting for the range of the mass percent for preparing raw material is 4~94%, polysilazane under above-mentioned content and poly-
Siloxanes produces polysilazane-polysiloxane copolymer of preferable content, so that the coating as obtained by the coating composition
Have the advantages that hardness is high, adhesion is good, temperature tolerance is good and reaches food touch-safe rank.
The structural formula of the polysilazane are as follows:Wherein, R1For hydrogen-based, alkane, cycloalkane, olefine, virtue
Base, alkoxy, alkyl siloxy or alkylamino radical, R2For hydrogen-based, alkane, cycloalkane, olefine, aryl, alkoxy, alkyl silicon
Oxygroup or alkylamino radical, R3For hydrogen-based, alkane, cycloalkane, olefine, aryl, alkoxy, alkyl siloxy or alkylamino radical.
The structural formula of the polysiloxanes are as follows:Wherein, R4For hydrogen-based, alkane, cycloalkane, olefine,
Aryl, alkoxy or alkyl siloxy, R5For hydrogen-based, alkane, cycloalkane, olefine, aryl, alkoxy or alkyl silicon oxygen
Base.
In an embodiment of the present invention, R1And R2At least one of the two is hydrogen-based or olefine.
It should be understood that the polysilazane and polysiloxanes are heat-resisting material.
It should be understood that R1、R2And R3It can be adjusted according to actual needs for identical group or in different groups
Section.
It should be understood that R4And R5It can be adjusted according to actual needs for identical group or in different groups.
It should be noted that R1、R2And R3The group of same or similar function, the present invention couple can also can be realized for other
This is with no restrictions；R4And R5The group of same or similar function can also can be realized for other, the present invention is without limitation.
In technical solution of the present invention, the polysilazane can be copolymerized with the polysiloxanes, generate the painting
The matrix resin of feed composition, so that the coating as obtained by the coating composition has, hardness is high, adhesion is good, temperature tolerance
It is good and the advantages of reach food touch-safe rank.
The molecular weight of the polysilazane is 100~1000.
The molecular weight of the polysiloxanes is 100~1300.
In one embodiment of the invention, the molecular weight of the polysilazane is 100,200,300,400,500,600,700,
800,900 or 1000.
In one embodiment of the invention, the molecular weight of the polysilazane is preferably 100~700, more preferably 100~
300。
In one embodiment of the invention, the molecular weight of the polysiloxanes is 100,200,300,400,500,600,700,
800,900,1000,1100,1200 or 1300.
In one embodiment of the invention, the molecular weight of the polysiloxanes is preferably 200~900, more preferably 200~
500。
The molecular weight of the polysilazane of technical solution of the present invention is 100~1000, the molecular weight of polysiloxanes is 100~
1300, after the polysiloxanes that the polysilazane and molecular weight that molecular weight is 100~1000 are 100~1300 is copolymerized,
Polysilazane-polysiloxane copolymer is produced, polysilazane-polysiloxane copolymer coating composition will be contained
In matrix formed coating after, the coating have preferable hardness, adhesion, temperature tolerance is good and reaches food touch-safe rank
Advantage.
The raw material for preparing of the coating composition further includes solvent, and the solvent accounts for the mass percent for preparing raw material
Range be 10~66%, preferably 15~50%, more preferably 20~40%, further preferably 30~35%.
The solvent can be selected from least one in alkane solvents, ether solvent, ketones solvent and benzenesulfonamide derivative species solvent
Kind.
The alkane solvents can be selected from n-hexane, normal octane, n-decane, chloroform, methylene chloride, dichloroethylene,
And at least one of mineral oil.
The ether solvent can be selected from least one of ether, petroleum ether and butyl oxide.
The ketones solvent can be selected from least one of acetone, methyl ethyl ketone, cyclohexanone and isophorone.
The benzenesulfonamide derivative species solvent in toluene, meta-xylene, paraxylene, ortho-xylene and chlorobenzene at least
It is a kind of.
It should be noted that other solvents that can dissolve polysiloxanes and polysilazane copolymers also can be used as it is of the invention
Solvent, the present invention are without limitation.
In technical solution of the present invention, the polysilazane-polysiloxane copolymer is dissolved in solvent, so that the coating
Composition can relatively easily be coated on the surface of matrix.
The raw material for preparing of the coating composition further includes catalyst, and the catalyst accounts for the quality hundred for preparing raw material
The range for dividing ratio is 0.01~5%, preferably 0.1~5%, more preferably 1~5%, further preferably 2~3%.
The catalyst is amines catalyst and/or metal-based catalysts.
The amines catalyst can be selected from one of fatty amine, cycloaliphatic amines, hydramine and aromatic amine or a variety of.
The fatty amine can be selected from least one of diethylamine, triethylamine and triethylene tetramine.
The cycloaliphatic amines can be selected from least one of triethylenediamine, piperazine, piperidines and morpholine.
The hydramine can be selected from N, N- dimethylethanolamine, diisopropanolamine (DIPA) and N, in N- diethyl ethylene diamine at least
It is a kind of.
The aromatic amine is selected from least one of aniline, o-phenylenediamine, benzidine and n,N-Dimethylaniline.
The metal-based catalysts can be organotin catalysts and/or palladium class catalyst.
The organotin catalysts can be selected from dibutyltindilaurylmercaptide cinnamic acid rouge, stannous octoate, stannous methide and triphenyltin
At least one of.
The palladium class catalyst can be selected from carbon/palladium, palladium chloride, propionic acid palladium salt, acetic acid palladium salt and triphenyl phosphorus palladium extremely
Few one kind.
It should be noted that other catalyst with similar performance also can be used as catalyst of the invention, the present invention couple
This is with no restrictions.
In technical solution of the present invention, the catalyst can accelerate polysilazane and polysiloxanes to be copolymerized, thus
Polysilazane-the polysiloxane copolymer is generated in a short time.
The raw material for preparing of the coating composition further includes filler, and the filler accounts for the mass percent for preparing raw material
Range be 1~50%, preferably 5~40%, preferably 10~30%, more preferably 15~25%.
The filler is selected from silicon carbide, aluminium oxide, titanium oxide, zinc oxide, magnesia, aluminium hydroxide, white carbon black (titanium dioxide
Silica aerogel), concave convex rod, kaolin, bentonite, at least one of glass microsphere and ceramic microsphere.
The partial size of the filler may be less than 3 microns, it is preferable that less than 2 microns, more preferably 1 micron.
In an embodiment of the present invention, the range of the partial size of the filler is 0.2~0.8 micron.It should be understood that described
The partial size of filler is 0.2 micron, 0.3 micron, 0.4 micron, 0.5 micron, 0.6 micron, 0.7 micron or 0.8 micron.
It should be understood that filler can be uniformly dispersed when setting 0.2~0.8 micron for the particle size range of the filler
In coating composition, and make the surface of coating obtained more smooth.
In an embodiment of the present invention, grinder can be used to grind filler, to reduce the partial size of filler.
In another implementation of the present invention, which can be ground, to reduce in the coating composition
Filler partial size.
In an embodiment of the present invention, the filler can be homogeneously dispersed in coating composition.
In technical solution of the present invention, the filler is selected from silicon carbide, aluminium oxide, titanium oxide, zinc oxide, magnesia, hydrogen-oxygen
Change in aluminium, white carbon black (aerosil), concave convex rod, kaolin, bentonite, glass microsphere and ceramic microsphere at least
One kind, to increase hardness, adhesion and the temperature tolerance of the coating as obtained by the coating composition.
It should be noted that other fillers with high temperature resistance also can be used as filler of the invention, the present invention is to this
With no restrictions.
It should be understood that solvent of the invention, catalyst and filler are also not admitted to poisonous and harmful substance, so that by the painting
Coating made from feed composition also has the advantages that food touch-safe.
In an embodiment of the present invention, the raw material for preparing of the coating composition includes: polysiloxanes, polysilazane, fills out
Material, solvent and catalyst.Wherein, the polysiloxanes accounts for the mass percent range for preparing raw material with polysilazane and is
10%~80%, it is 1~50% that filler, which accounts for the mass percent range for preparing raw material, and solvent accounts for the matter for preparing raw material
Measuring percentage range is 10~66%, and it is 0.01~5% that catalyst, which accounts for the mass percent range for preparing raw material,.
The present invention also provides a kind of preparation methods of coating composition, comprising the following steps:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes；
Mixing polysilazane and polysiloxanes, polysilazane and polysiloxanes are copolymerized, and it is poly- to generate polysilazane-
The coating composition is made in silicone copolymers.
It should be understood that the range that the polysilazane accounts for the mass percent for preparing raw material is 6~96%, it is described
The range that polysiloxanes accounts for the mass percent for preparing raw material is 4~94%.
In an embodiment of the present invention, the polysilazane account for the mass percent for preparing raw material range be 6~
96%.Preferably, it is 10~80% that the polysilazane, which accounts for the range of the mass percent for preparing raw material, more preferably
15~60%, further preferably 20~50%.
In an embodiment of the present invention, the polysiloxanes account for the mass percent for preparing raw material range be 4~
94%.Preferably, it is 10~70% that the polysiloxanes, which accounts for the range of the mass percent for preparing raw material, more preferably
15~60%, further preferably 20~50%.
In an embodiment of the present invention, polysiloxanes and polysilazane can be placed in reactor, to polysiloxanes and poly- silicon
Azane carries out first time stir process so that polysiloxanes is uniformly mixed with polysilazane, and polysiloxanes can occur with polysilazane
Copolyreaction generates polysiloxanes-polysilazane copolymers.
In the present invention one is implemented, the stirring rate of the first time stir process is 100~800 revs/min, preferably
200~600 revs/min, more preferably 400~500 revs/min.
It should be understood that the time of the copolyreaction can be 10 seconds~50 minutes, can need to adjust according to actual production
The time of whole copolyreaction.
It should be noted that the stirring rate of the first time stir process and the time of copolyreaction can be also other numbers
Value, the present invention are without limitation.
The raw material for preparing of the coating composition of technical solution of the present invention includes polysilazane and polysiloxanes.The polysilazane
It can be copolymerized with polysiloxanes and generate polysilazane-polysiloxane copolymer.The polysilazane-polysiloxanes copolymerization
Object has the advantages that hardness is high, adhesion is good and temperature tolerance is good, and the polysilazane, polysiloxanes and the poly- silicon of polysilazane-
Siloxane copolymers are not belonging to poisonous and harmful substance, so that the coating as made from the coating composition has, hardness is high, adhesion is good,
The advantages of temperature tolerance is good and food touch-safe.
After mixing polysilazane and polysiloxanes, the preparation method of the coating composition further include: to polysilazane and
The step of catalyst is added in polysiloxanes, wherein the range that the catalyst accounts for the mass percent for preparing raw material is
0.01~5%, preferably 0.1~5%, more preferably 1~5%, further preferably 2~3%.
The catalyst is amines catalyst and/or metal-based catalysts.
It should be understood that second of stir process is carried out to it after catalyst is added into polysilazane and polysiloxanes,
So that polysilazane, polysiloxanes and catalyst are uniformly mixed.
In an embodiment of the present invention, the stirring rate of second of stir process can be 1000~2000 revs/min, excellent
It is selected as 1200~1800 revs/min, more preferably 1500~1600 revs/min.
In an embodiment of the present invention, the time of second of stir process can be 10 seconds~50 minutes, preferably 5~
15 minutes, more preferably 8~12 minutes.
It should be noted that the time of the stirring rate of second of stir process and second of stir process can also be
Other numerical value, the present invention are without limitation.
It should be noted that other catalyst with similar performance also can be used as catalyst of the invention, the present invention couple
This is with no restrictions.
In the technical solution of the present invention, catalyst can be added into polysilazane and polysiloxanes, to promote polysiloxanes
It is copolymerized with polysilazane, generates the required matrix resin of the present invention, i.e. polysiloxanes-polysilazane copolymers.
After generating polysilazane-polysiloxane copolymer, before the coating composition is made, the system of the coating composition
Preparation Method further include: the step of solvent and/or filler are added into polysilazane-polysiloxane copolymer, the painting is made
Feed composition.
The range that the solvent accounts for the mass percent for preparing raw material is 10~66%, preferably 15~50%, more
Add preferably 20~40%, further preferably 30~35%.
The range that the filler accounts for the mass percent for preparing raw material is 1~50%, preferably 5~40%, preferably
It is 10~30%, more preferably 15~25%.
The solvent can be selected from least one in alkane solvents, ether solvent, ketones solvent and benzenesulfonamide derivative species solvent
Kind.
The filler can be selected from silicon carbide, aluminium oxide, titanium oxide, zinc oxide, magnesia, aluminium hydroxide, white carbon black, bumps
At least one of stick, kaolin, bentonite, glass microsphere and ceramic microsphere.
It in an embodiment of the present invention, can be to it after solvent and filler being added into polysilazane-polysiloxane copolymer
Third time stir process is carried out, so that polysilazane-polysiloxane copolymer, solvent and filler are uniformly mixed.
It should be understood that solvent first can be added into the polysilazane-polysiloxane copolymer, filler is added, it is right
It carries out third time stir process.Solvent and filler can also be added into the polysilazane-polysiloxane copolymer simultaneously, it is right
It carries out third time stir process.
The stirring rate of the third time stir process can be 100~3000 revs/min, preferably 500~2000 revs/min
Clock, more preferably 1000~1500 revs/min.
In an embodiment of the present invention, the time of the third time stir process can be 2~20 minutes, preferably 5~15
Minute, more preferably 8~12 minutes.
It should be noted that the stirring rate of the third time stir process and the time of third time stir process can also be
Other numerical value, the present invention are without limitation.
The partial size of the filler may be less than 3 microns, it is preferable that less than 2 microns, more preferably 1 micron.
In an embodiment of the present invention, the range of the partial size of the filler is 0.2~0.8 micron.It should be understood that described
The partial size of filler is 0.2 micron, 0.3 micron, 0.4 micron, 0.5 micron, 0.6 micron, 0.7 micron or 0.8 micron.
It should be understood that filler can be uniformly dispersed when setting 0.2~0.8 micron for the particle size range of the filler
In coating composition, and make coating surface obtained more smooth.
In an embodiment of the present invention, grinder can be used to grind filler, to reduce the partial size of filler, then will be through
Filler after milled processed is added into polysilazane-polysiloxane copolymer.
In another implementation of the present invention, directly the biggish filler of partial size can be added to polysilazane-polysiloxanes and be copolymerized
In object, head product is obtained, then be ground to the head product, to reduce the partial size of the filler in the coating composition.
The time of the milled processed can be 30~60 minutes, preferably 40~50 minutes.It can adjust according to actual needs
Whole milling time, to obtain the filler of corresponding partial size.
In technical solution of the present invention, the polysilazane-polysiloxane copolymer is dissolved in solvent, so that the coating
Composition can relatively easily be coated on the surface of matrix.The filler is also dispersible in the solvent and polysilazane-polysiloxanes
In copolymer, to increase the hardness, adhesion and temperature tolerance of the coating composition.
It should be noted that other solvents that can dissolve polysiloxanes and polysilazane copolymers also can be used as it is of the invention
Solvent, the present invention are without limitation.
It should be noted that other fillers with high temperature resistance also can be used as filler of the invention, the present invention is to this
With no restrictions.
It should also be noted that, in the preparation method of the coating composition, the order of addition and lapping mode of each component
It can be adjusted and select according to actual needs, and when the time of above-mentioned copolyreaction, mixing speed, mixing time, grinding
Between it is equal be representative value in preparation process, can be adjusted according to actual needs.
The present invention also provides a kind of coating piece, the coating piece includes matrix and the coating for being formed in matrix surface, described
Contain the coating composition in coating.
It should be understood that the coating can be formed by the coating composition in matrix surface.
It should be understood that the thermal weight loss in 500 DEG C of oxygen atmosphere of the coating as obtained by the coating composition is less than
5%, show that the coating has very excellent heat resistance.
The parameters such as component, the proportion of the coating composition please refer to above-described embodiment, since this coating piece is using above-mentioned
Whole technical solutions of all embodiments, thus it is at least all beneficial to effect brought by the technical solution with above-described embodiment
Fruit, this is no longer going to repeat them.
The range of the thickness of the coating is 1~100 micron, and preferably 5~60 microns, more preferably 10~50 is micro-
Rice, further preferably 20~30 microns.
It should be understood that the thickness of the coating can be adjusted according to actual demand.
The thickness of the coating can be 1 micron, 2 microns, 5 microns, 10 microns, 20 microns, 50 microns or 100 microns.
In technical solution of the present invention, the range of the thickness of the coating can be 1~100 micron, and the surface of Yu Jiti is formed
After the coating of above-mentioned thickness, which can be effectively protected matrix so that the coating piece have hardness height, high temperature resistant,
Adhesion is good, reaches the advantages that food touch-safe rank.
The present invention also provides a kind of preparation methods of coating piece, comprising the following steps:
Matrix and the coating composition are provided；
By the coating composition in the surface of matrix, the coating piece is made.
It should be understood that can be first ground to the coating composition, reunited with reducing, then by the ground place
Coating composition after reason is in the surface of matrix.
It should be understood that the coating composition heats matrix when the surface of matrix, should add
The temperature of heat treatment is lower than 300 DEG C, preferably 100 DEG C~280 DEG C, more preferably 120~150 DEG C, so that matrix surface
Curing of coating composition forms coating.The range of the thickness of the coating can be 1~100 micron.
In an embodiment of the present invention, pre-treatment can be carried out to matrix, the pre-treatment can be oil removing, cleaning and drying
Deng improving coating in the adhesive force of matrix surface so that matrix surface is clean.
In the inventive solutions, can directly consolidate in the surface of matrix to coating composition coating composition
It can be prepared by the coating piece after change, so that the preparation method of coating piece of the invention has the advantages that moulding process is simple.And
And the temperature of the curing process is lower than 300 DEG C, the cured technical solution of high temperature compared to the prior art, coating piece of the invention
Preparation method also have the advantages that energy consumption it is low.
It should be understood that do not need to carry out the pre-treatments such as sanding to matrix since the coating has preferable adhesion,
Reduce the technology difficulty of the preparation method of the coating piece, and compared to the prior art in need to matrix carry out sanding processing
Technical solution, the preparation method of coating piece of the invention also has the advantages that environmental protection.
The present invention also provides a kind of household electrical appliance, the household electrical appliance include the coating piece.
The household electrical appliance can for micro-wave oven, electromagnetic oven, oven, bread producing machine, flour stranding machine, smoke exhaust ventilator, air burst pot,
Cake shelves, humidifier, insulating pot, hair dryer, juice extractor, pressure cooker, electric cooker, water heater, computer, electric fan, electricity pan-fried disk, soya-bean milk
Machine, air-conditioning, speaker, cooking stove or refrigerator etc..
In an embodiment of the present invention, the coating piece can be the shell of household electrical appliance.Specifically, which can be family
The shell or inner casing of electrical appliance.
In a specific embodiment of the invention, when the household electrical appliance are that micro-wave oven, air burst pot or oven etc. add
When thermoelectricity device, the coating piece can be inner cavity or the heating dish of micro-wave oven or oven.
The specific structure of the household electrical appliance please refers to above-described embodiment, since this household electrical appliance uses above-mentioned all implementations
Whole technical solutions of example, therefore at least all beneficial effects brought by the technical solution with above-described embodiment, herein not
It repeats one by one again.
It should be understood that the raw material for preparing of the coating composition is not domestic and international object regulation limitation or be forbidden to use
Matter, and in the preparation process of the coating composition and in the preparation process of the coating piece, nuisance will not be generated
Matter, so that the coating composition, coating, coating piece and electronic device all have the characteristic of safety and environmental protection.
The following are several embodiments of the preparation method of coating composition of the present invention:
Embodiment 1
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For hydrogen-based, R2For hydrogen-based, R3For hydrogen-based, the range that the polysilazane accounts for the mass percent for preparing raw material is 60%, institute
State the R of polysiloxanes4For hydrogen-based, R5For olefine, the range that the polysiloxanes accounts for the mass percent for preparing raw material is
40%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 600 revs/min of speed
Alkane, polysiloxanes are copolymerized with polysilazane, generate polysiloxanes-polysilazane copolymers, obtain coating composition.
Embodiment 2
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For aryl, R2For hydrogen-based, R3For alkylamino radical, the range that the polysilazane accounts for the mass percent for preparing raw material is 40%,
The R of the polysiloxanes4For cycloalkane, R5For alkyl siloxy, the polysiloxanes accounts for the mass percent for preparing raw material
Range be 30%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 800 revs/min of speed
Alkane, polysiloxanes are copolymerized with polysilazane, generate polysiloxanes-polysilazane copolymers；
There is provided butyl oxide, the butyl oxide account for the mass percent for preparing raw material range be 30%, with 1000 turns/
The speed mixing butyl oxide and polysiloxanes-polysilazane copolymers of minute, obtains coating composition.
Embodiment 3
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For olefine, R2For alkylsiloxane, R3For alkane, the polysilazane accounts for the range of the mass percent for preparing raw material
It is 30%, the R of the polysiloxanes4For alkane, R5For olefine, the polysiloxanes accounts for the quality percentage for preparing raw material
The range of ratio is 30%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 120 revs/min of speed
Alkane；
Stannous methide is provided, the range that the stannous methide accounts for the mass percent for preparing raw material is 2%, with 1050
Rev/min speed mixing stannous methide, polysiloxanes and polysilazane, stannous methide promotes polysiloxanes and polysilazane to send out
Raw copolyreaction, generates polysiloxanes-polysilazane copolymers；
Toluene and isophorone are provided, the range that the toluene accounts for the mass percent for preparing raw material is 18%, institute
State isophorone account for the mass percent for preparing raw material range be 20%, with 1000 revs/min of speed mixed toluene,
Isophorone and polysiloxanes-polysilazane copolymers obtain coating composition.
Embodiment 4
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For hydrogen-based, R2For cycloalkane, R3For hydrogen-based, the range that the polysilazane accounts for the mass percent for preparing raw material is 15%,
The R of the polysiloxanes4For alkylamino radical, R5For alkoxy, the polysiloxanes accounts for the model of the mass percent for preparing raw material
Enclose is 15%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 150 revs/min of speed
Alkane；
Acetic acid palladium salt is provided, the range that the acetic acid palladium salt accounts for the mass percent for preparing raw material is 4%, with 1500
Rev/min speed mixing acetic acid palladium salt, polysiloxanes and polysilazane, acetic acid palladium salt promotes polysiloxanes and polysilazane to send out
Raw copolyreaction, generates polysiloxanes-polysilazane copolymers；
Ortho-xylene, petroleum ether, aluminium oxide and white carbon black, the ortho-xylene are provided and account for the quality for preparing raw material
The range of percentage is 20%, and the range that the petroleum ether accounts for the mass percent for preparing raw material is 20%, the oxidation
The range that aluminium accounts for the mass percent for preparing raw material is 11%, and the white carbon black accounts for the mass percent for preparing raw material
Range be 15%, the aluminium oxide, white carbon black particle size range can be 2~3 microns, mixed with 1200 revs/min of speed
Ortho-xylene, petroleum ether, aluminium oxide, white carbon black and polysiloxanes-polysilazane copolymers obtain coating head product；
The coating head product is ground, the range 0.3~0.45 of the partial size of aluminium oxide and white carbon black is made
Micron obtains coating composition.
Embodiment 5
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For alkylamino radical, R2For alkyl, R3For aryl, the range that the polysilazane accounts for the mass percent for preparing raw material is 12%,
The R of the polysiloxanes4For alkylsiloxane, R5For cycloalkane, the polysiloxanes accounts for the mass percent for preparing raw material
Range be 11%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 200 revs/min of speed
Alkane；
Triethylene tetramine is provided, the range that the triethylene tetramine accounts for the mass percent for preparing raw material is 1%, with
1600 revs/min of speed mixing triethylene tetramine, polysiloxanes and polysilazane, triethylene tetramine promote polysiloxanes and gather
Silazane is copolymerized, and generates polysiloxanes-polysilazane copolymers；
N-hexane, acetone, concave convex rod, white carbon black and magnesia, the n-hexane are provided and account for the quality for preparing raw material
The range of percentage is 27%, and the range that the acetone accounts for the mass percent for preparing raw material is 27%, the concave convex rod
The range for accounting for the mass percent for preparing raw material is 4%, and the white carbon black accounts for the mass percent for preparing raw material
Range is 4%, and the range that the magnesia accounts for the mass percent for preparing raw material is 14%, the concave convex rod, white carbon black
And the particle size range of magnesia can be 2~3 microns, mix n-hexane, acetone, concave convex rod, hard charcoal with 1200 revs/min of speed
Black, magnesia and polysiloxanes-polysilazane copolymers obtain coating head product；
The coating head product is ground, the range of the partial size of concave convex rod, white carbon black and magnesia is made
0.2~0.35 micron, obtain coating composition.
Embodiment 6
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For aryl, R2For aryl, R3For hydrogen-based, the range that the polysilazane accounts for the mass percent for preparing raw material is 10%, institute
State the R of polysiloxanes4For olefine, R5For hydrogen-based, the range that the polysiloxanes accounts for the mass percent for preparing raw material is
10%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 500 revs/min of speed
Alkane；
Triphenyltin is provided, the range that the triphenyltin accounts for the mass percent for preparing raw material is 1%, with 1260
Rev/min speed mixing triphenyltin, polysiloxanes and polysilazane, triphenyltin can promote polysiloxanes and polysilazane
It is copolymerized, generates polysiloxanes-polysilazane copolymers；
There is provided methyl ethyl ketone, meta-xylene, aluminium oxide, titanium oxide and bentonite, the methyl ethyl ketone accounts for the raw material for preparing
The range of mass percent is 20%, and the range that the meta-xylene accounts for the mass percent for preparing raw material is 23%, institute
Stating aluminium oxide and accounting for the range of the mass percent for preparing raw material is 30%, and the titanium oxide accounts for the quality for preparing raw material
The range of percentage is 3%, and the range that the bentonite accounts for the mass percent for preparing raw material is 3%, the aluminium oxide,
Titanium oxide and bentonitic particle size range can be 0.2~0.3 micron；
After the methyl ethyl ketone and meta-xylene are added into polysiloxanes-polysilazane copolymers, add aluminium oxide,
Titanium oxide and bentonite are stirred with 2000 revs/min of speed, make methyl ethyl ketone, meta-xylene, aluminium oxide, titanium oxide,
Bentonite and polysiloxanes-polysilazane copolymers are uniformly mixed, and obtain coating composition.
Embodiment 7
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For alkane, R2For alkane, R3For hydrogen-based, the range that the polysilazane accounts for the mass percent for preparing raw material is 8%, institute
State the R of polysiloxanes4For alkoxy, R5For alkoxy, the polysiloxanes accounts for the range of the mass percent for preparing raw material
It is 7%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 400 revs/min of speed
Alkane；
Acetic acid palladium salt is provided, the range that the acetic acid palladium salt accounts for the mass percent for preparing raw material is 1%, with 1290
Rev/min speed mixing acetic acid palladium salt, polysiloxanes and polysilazane, acetic acid palladium salt can promote polysiloxanes and polysilazane
It is copolymerized, generates polysiloxanes-polysilazane copolymers；
Toluene, aluminium oxide, zinc oxide and ceramic microsphere, the toluene are provided and account for the mass percent for preparing raw material
Range be 59%, the aluminium oxide account for the mass percent for preparing raw material range be 17%, the zinc oxide accounts for institute
The range for stating the mass percent for preparing raw material is 5%, and the ceramic microsphere accounts for the model of the mass percent for preparing raw material
Enclosing is 3%, the aluminium oxide, zinc oxide particle size range be 1~2 micron, the range of the partial size of the ceramic microsphere is 0.2~
0.25 micron；
After toluene is added into the polysiloxanes-polysilazane copolymers, aluminium oxide and zinc oxide are added, with 1700
Rev/min speed mixed toluene, aluminium oxide, zinc oxide and polysiloxanes-polysilazane copolymers, obtain coating head product；
The coating head product is ground, make aluminium oxide, zinc oxide partial size range 0.3~0.42 it is micro-
Rice；
Ceramic microsphere is added into ground treated coating head product, is stirred with 2000 revs/min of speed, obtains
Coating composition.
Embodiment 8
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For olefine, R2For aryl, R3For hydrogen-based, the range that the polysilazane accounts for the mass percent for preparing raw material is 6%,
The R of the polysiloxanes4For alkane, R5For alkane, the range that the polysiloxanes accounts for the mass percent for preparing raw material is
4%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 700 revs/min of speed
Alkane；
N,N-Dimethylaniline is provided, the n,N-Dimethylaniline accounts for the range of the mass percent for preparing raw material
It is 0.5%, with 1430 revs/min of speed mixing n,N-Dimethylaniline, polysiloxanes and polysilazane, N, N- dimethyl benzene
Amine can promote polysiloxanes and be copolymerized with polysilazane, generate polysiloxanes-polysilazane copolymers；
There is provided ether, paraxylene, white carbon black, aluminium hydroxide and glass microsphere, the ether accounts for the raw material for preparing
The range of mass percent is 35.5%, and the range that the paraxylene accounts for the mass percent for preparing raw material is 30%,
The range that the white carbon black accounts for the mass percent for preparing raw material is 10%, and the aluminium hydroxide accounts for the raw material for preparing
The range of mass percent is 12%, and the range that the glass microsphere accounts for the mass percent for preparing raw material is 2%, described
White carbon black, aluminium hydroxide particle size range can be 1.5~2 microns, the partial size of the ceramic microsphere is 0.2~0.6 micron；
With 1900 revs/min of speed mixing ether, paraxylene, white carbon black, aluminium hydroxide and the poly- silicon nitrogen of polysiloxanes-
Alkyl copolymer obtains coating head product；
The coating head product is ground, make white carbon black, the range of partial size of aluminium hydroxide can 0.6~0.8
Micron；
Glass microsphere is added into ground treated coating head product, is stirred with 2100 revs/min of speed, obtains
Coating composition.
Embodiment 9
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For hydrogen-based, R2For hydrogen-based, R3For hydrogen-based, the range that the polysilazane accounts for the mass percent for preparing raw material is 55%, institute
State the R of polysiloxanes4For hydrogen-based, R5For olefine, the range that the polysiloxanes accounts for the mass percent for preparing raw material is
25%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 700 revs/min of speed
Alkane；
Triethylenediamine is provided, the range that the triethylenediamine accounts for the mass percent for preparing raw material is
5%, it can promote with 1300 revs/min of speed mixing triethylenediamine, polysiloxanes and polysilazane, triethylenediamine
Polysiloxanes is copolymerized with polysilazane, generates polysiloxanes-polysilazane copolymers；
There is provided butyl oxide, the butyl oxide account for the mass percent for preparing raw material range be 15%, with 1600 turns/
The speed mixing butyl oxide and polysiloxanes-polysilazane copolymers of minute, obtains coating composition.
Embodiment 10
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For hydrogen-based, R2For hydrogen-based, R3For hydrogen-based, the range that the polysilazane accounts for the mass percent for preparing raw material is 40%, institute
State the R of polysiloxanes4For hydrogen-based, R5For olefine, the range that the polysiloxanes accounts for the mass percent for preparing raw material is
40%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 500 revs/min of speed
Alkane；
Triethylenediamine is provided, the range that the triethylenediamine accounts for the mass percent for preparing raw material is
5%, it can promote with 1500 revs/min of speed mixing triethylenediamine, polysiloxanes and polysilazane, triethylenediamine
Polysiloxanes is copolymerized with polysilazane, generates polysiloxanes-polysilazane copolymers；
There is provided butyl oxide, the butyl oxide account for the mass percent for preparing raw material range be 15%, with 1700 turns/
The speed mixing butyl oxide and polysiloxanes-polysilazane copolymers of minute, obtains coating composition.
Embodiment 11
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For hydrogen-based, R2For hydrogen-based, R3For hydrogen-based, the range that the polysilazane accounts for the mass percent for preparing raw material is 50%, institute
State the R of polysiloxanes4For hydrogen-based, R5For olefine, the range that the polysiloxanes accounts for the mass percent for preparing raw material is
30%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 500 revs/min of speed
Alkane；
Triethylenediamine is provided, the range that the triethylenediamine accounts for the mass percent for preparing raw material is
5%, it can promote with 1500 revs/min of speed mixing triethylenediamine, polysiloxanes and polysilazane, triethylenediamine
Polysiloxanes is copolymerized with polysilazane, generates polysiloxanes-polysilazane copolymers；
There is provided butyl oxide, the butyl oxide account for the mass percent for preparing raw material range be 15%, with 1700 turns/
The speed mixing butyl oxide and polysiloxanes-polysilazane copolymers of minute, obtains coating composition.
Embodiment 12
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For hydrogen-based, R2For hydrogen-based, R3For hydrogen-based, the range that the polysilazane accounts for the mass percent for preparing raw material is 50%, institute
State the R of polysiloxanes4For hydrogen-based, R5For olefine, the range that the polysiloxanes accounts for the mass percent for preparing raw material is
30%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 500 revs/min of speed
Alkane；
Triethylenediamine is provided, the range that the triethylenediamine accounts for the mass percent for preparing raw material is
5%, it can promote with 1500 revs/min of speed mixing triethylenediamine, polysiloxanes and polysilazane, triethylenediamine
Polysiloxanes is copolymerized with polysilazane, generates polysiloxanes-polysilazane copolymers；
Butyl oxide and silicon carbide are provided, the range that the butyl oxide accounts for the mass percent for preparing raw material is 10%,
The range that the silicon carbide accounts for the mass percent for preparing raw material is 5%, mixes two fourths with 1800 revs/min of speed
Ether, silicon carbide and polysiloxanes-polysilazane copolymers obtain coating composition, wherein the range of the partial size of the silicon carbide
It is 0.6~0.8 micron.
Embodiment 13
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For hydrogen-based, R2For hydrogen-based, R3For hydrogen-based, the range that the polysilazane accounts for the mass percent for preparing raw material is 50%, institute
State the R of polysiloxanes4For hydrogen-based, R5For olefine, the range that the polysiloxanes accounts for the mass percent for preparing raw material is
30%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 600 revs/min of speed
Alkane；
Triethylenediamine is provided, the range that the triethylenediamine accounts for the mass percent for preparing raw material is
5%, it can promote with 1600 revs/min of speed mixing triethylenediamine, polysiloxanes and polysilazane, triethylenediamine
Polysiloxanes is copolymerized with polysilazane, generates polysiloxanes-polysilazane copolymers；
Butyl oxide and aluminium oxide are provided, the range that the butyl oxide accounts for the mass percent for preparing raw material is 10%,
The range that the aluminium oxide accounts for the mass percent for preparing raw material is 5%, mixes butyl oxide and polysiloxanes-polysilazane
After copolymer, then aluminium oxide is added thereto, is stirred with 1800 revs/min of speed, obtains coating head product；
The coating head product is ground, so that the range of the partial size of aluminium oxide is reached 0.3~0.5 micron, obtains
Obtain coating composition.
Embodiment 14
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For hydrogen-based, R2For hydrogen-based, R3For hydrogen-based, the range that the polysilazane accounts for the mass percent for preparing raw material is 50%, institute
State the R of polysiloxanes4For hydrogen-based, R5For olefine, the range that the polysiloxanes accounts for the mass percent for preparing raw material is
30%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 600 revs/min of speed
Alkane；
Stannous methide is provided, the range that the stannous methide accounts for the mass percent for preparing raw material is 5%, with 1700
Rev/min speed mixing stannous methide, polysiloxanes and polysilazane, stannous methide can promote polysiloxanes and polysilazane
It is copolymerized, generates polysiloxanes-polysilazane copolymers；
Butyl oxide and silicon carbide are provided, the range that the butyl oxide accounts for the mass percent for preparing raw material is 10%,
The range that the silicon carbide accounts for the mass percent for preparing raw material is 5%, mixes butyl oxide and polysiloxanes-polysilazane
After copolymer, then silicon carbide is added thereto, is stirred with 1800 revs/min of speed, obtains coating head product, wherein
The range of the partial size of the silicon carbide is 3~4 microns；
The coating head product is ground, so that the range of the partial size of silicon carbide is reached 0.4~0.9 micron, obtains
Obtain coating composition.
Embodiment 15
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For hydrogen-based, R2For hydrogen-based, R3For hydrogen-based, the range that the polysilazane accounts for the mass percent for preparing raw material is 20%, institute
State the R of polysiloxanes4For hydrogen-based, R5For olefine, the range that the polysiloxanes accounts for the mass percent for preparing raw material is
15%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 600 revs/min of speed
Alkane；
Triethylenediamine is provided, the range that the triethylenediamine accounts for the mass percent for preparing raw material is
1%, it can promote with 1800 revs/min of speed mixing triethylenediamine, polysiloxanes and polysilazane, triethylenediamine
Polysiloxanes is copolymerized with polysilazane, generates polysiloxanes-polysilazane copolymers；
Paraxylene is provided and silicon carbide, the range that the paraxylene accounts for the mass percent for preparing raw material are
4%, the range that the silicon carbide accounts for the mass percent for preparing raw material is 60%, mixes butyl oxide and polysiloxanes-is poly-
After silazane copolymer, then silicon carbide is added thereto, is stirred with 1900 revs/min of speed, obtains coating head product,
Wherein, the range of the partial size of the silicon carbide is 3~3.5 microns；
The coating head product is ground, so that the range of the partial size of silicon carbide is reached 0.2~0.4 micron, obtains
Obtain coating composition.
Embodiment 16
The preparation method of the coating composition the following steps are included:
Offer prepares raw material, and the raw material for preparing includes polysilazane and polysiloxanes, wherein the R of the polysilazane1
For hydrogen-based, R2For alkane, R3For hydrogen-based, the range that the polysilazane accounts for the mass percent for preparing raw material is 25%, institute
State the R of polysiloxanes4For alkylamino radical, R5For olefine, the polysiloxanes accounts for the range of the mass percent for preparing raw material
It is 25%；
Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 450 revs/min of speed
Alkane, polysiloxanes and polysilazane generate the poly- silicon nitrogen of polysiloxanes-so that polysiloxanes is copolymerized with polysilazane
Alkyl copolymer；
Paraxylene is provided and silicon carbide, the range that the paraxylene accounts for the mass percent for preparing raw material are
20%, the range that the silicon carbide accounts for the mass percent for preparing raw material is 30%, mixes butyl oxide and polysiloxanes-is poly-
After silazane copolymer, then silicon carbide is added thereto, is stirred with 2000 revs/min of speed, obtains coating head product,
Wherein, the range of the partial size of the silicon carbide is 2~4 microns；
The coating head product is ground, so that the range of the partial size of silicon carbide is reached 0.2~0.5 micron, obtains
Obtain coating composition.
By the coating composition as obtained by above-described embodiment 1-16 in matrix, coating is formed, sample is obtained, can order
Entitled sample 1, sample 2..... sample 16, test hardness, adhesion and the temperature tolerance of the coating of sample 1-16, survey
Test result please join table 1.
The physical property measurement result of 1 coating of table
| Hardness (H) | Adhere to (grade) | Heatproof (weightless %) | |
| Sample 1 | 8 | 0 | 2.36 |
| Sample 2 | 9 | 0 | 1.33 |
| Sample 3 | 7 | 0 | 3.03 |
| Sample 4 | 7 | 0 | 3.25 |
| Sample 5 | 7 | 0 | 2.91 |
| Sample 6 | 6 | 0 | 3.65 |
| Sample 7 | 6 | 0 | 3.78 |
| Sample 8 | 6 | 0 | 3.84 |
| Sample 9 | 8 | 0 | 1.82 |
| Sample 10 | 9 | 0 | 1.49 |
| Sample 11 | 9 | 0 | 1.13 |
| Sample 12 | 9 | 0 | 1.30 |
| Sample 13 | 9 | 0 | 1.16 |
| Sample 14 | 9 | 0 | 1.05 |
| Sample 15 | 7 | 0 | 2.81 |
| Sample 16 | 8 | 0 | 2.55 |
The hardness of sample 1-16 is tested according to GB/T 6739-1996 (hardness of film method of testing), shows sample 1-
The range of 16 hardness is 6~9H, shows that sample 1-16 all has preferable hardness.
The adhesion of sample 1-16 is tested according to GB/T 9286 (adhesive force method of testing), display sample 1-16's
The attachment of hundred lattice can reach 0 grade, show that the adhesion of sample 1-16 is also preferable.
The weightlessness of sample 1-16 is tested according to GB/T 9286 (temperature tolerance test method), display sample 1-16's is resistance to
Warm nature is also preferable.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all in the present invention
Inventive concept under, using equivalent structure transformation made by present specification, be applied directly or indirectly in other phases
The technical field of pass is included in scope of patent protection of the invention.
Claims (22)
1. a kind of coating composition, which is characterized in that the raw material for preparing of the coating composition includes polysilazane and poly- silicon oxygen
Alkane, the polysilazane and polysiloxanes are copolymerized generation polysilazane-polysiloxane copolymer.
2. coating composition as described in claim 1, which is characterized in that the polysilazane accounts for the quality for preparing raw material
The range of percentage is 6~96%, and the range that the polysiloxanes accounts for the mass percent for preparing raw material is 4~94%.
3. coating composition as described in claim 1, which is characterized in that the structural formula of the polysilazane are as follows:Wherein, R1For hydrogen-based, alkane, cycloalkane, olefine, aryl, alkoxy, alkyl siloxy or alkylamino radical, R2
For hydrogen-based, alkane, cycloalkane, olefine, aryl, alkoxy, alkyl siloxy or alkylamino radical, R3For hydrogen-based, alkane, cycloalkanes
Hydrocarbon, olefine, aryl, alkoxy, alkyl siloxy or alkylamino radical.
4. coating composition as claimed in claim 3, which is characterized in that the R1And R2At least one of be hydrogen-based or chain
Alkene.
5. coating composition as described in claim 1, which is characterized in that the molecular weight of the polysilazane is 100~1000.
6. coating composition as described in claim 1, which is characterized in that the structural formula of the polysiloxanes are as follows:Wherein, R4For hydrogen-based, alkane, cycloalkane, olefine, aryl, alkoxy or alkyl siloxy, R5For hydrogen
Base, alkane, cycloalkane, olefine, aryl, alkoxy or alkyl siloxy.
7. coating composition as described in claim 1, which is characterized in that the molecular weight of the polysiloxanes is 100~1300.
8. such as the described in any item coating compositions of claim 1-7, which is characterized in that the coating composition prepares raw material
It further include solvent, the range that the solvent accounts for the mass percent of the coating composition is 10~66%, and the solvent is selected from
At least one of alkane solvents, ether solvent, ketones solvent and benzenesulfonamide derivative species solvent.
9. coating composition as claimed in claim 8, which is characterized in that the alkane solvents be selected from n-hexane, normal octane,
At least one of n-decane, chloroform, methylene chloride, dichloroethylene and mineral oil are a variety of；The ether solvent is selected from
At least one of ether, petroleum ether and butyl oxide；The ketones solvent is selected from acetone, methyl ethyl ketone, cyclohexanone and different Fo Er
At least one of ketone；The benzenesulfonamide derivative species solvent is in toluene, meta-xylene, paraxylene, ortho-xylene and chlorobenzene
At least one.
10. such as the described in any item coating compositions of claim 1-7, which is characterized in that the preparation of the coating composition is former
Material further includes catalyst, and the range that the catalyst accounts for the mass percent for preparing raw material is 0.01~5%, the catalysis
Agent is amines catalyst and/or metal-based catalysts.
11. coating composition as claimed in claim 10, which is characterized in that the amines catalyst is selected from fatty amine, alicyclic ring
One of race's amine, hydramine and aromatic amine are a variety of, and the fatty amine is in diethylamine, triethylamine and triethylene tetramine
It is at least one；The cycloaliphatic amines are selected from least one of triethylenediamine, piperazine, piperidines and morpholine；The hydramine choosing
From N, N- dimethylethanolamine, diisopropanolamine (DIPA) and N, at least one of N- diethyl ethylene diamine；The aromatic amine is selected from benzene
At least one of amine, o-phenylenediamine, benzidine and n,N-Dimethylaniline.
12. coating composition as claimed in claim 10, which is characterized in that the metal-based catalysts are organotin catalysts
And/or palladium class catalyst, the organotin catalysts are selected from dibutyltindilaurylmercaptide cinnamic acid rouge, stannous octoate, stannous methide and three
At least one of phenyltin；The palladium class catalyst is selected from carbon/palladium, palladium chloride, propionic acid palladium salt, acetic acid palladium salt and triphenyl
At least one of phosphorus palladium.
13. such as the described in any item coating compositions of claim 1-7, which is characterized in that the preparation of the coating composition is former
Material further includes filler, and the range that the filler accounts for the mass percent for preparing raw material is 1~50%, and the filler is selected from carbon
SiClx, aluminium oxide, titanium oxide, zinc oxide, magnesia, aluminium hydroxide, white carbon black, concave convex rod, kaolin, bentonite, glass are micro-
At least one of ball and ceramic microsphere.
14. coating composition as claimed in claim 8, which is characterized in that the raw material for preparing of the coating composition further includes
Catalyst and filler, the range that the catalyst accounts for the mass percent of the coating composition is 10~66%, the filler
The range for accounting for the mass percent of the coating composition is 10~66%, and the polysiloxanes and polysilazane account for the coating
The range of the mass percent of composition is 10%~80%.
15. a kind of preparation method of coating composition, comprising the following steps:
Offer prepares raw material, and the raw material for preparing includes: polysilazane and polysiloxanes；
Mixing polysilazane and polysiloxanes, polysilazane and polysiloxanes are copolymerized, and generate the poly- silicon oxygen of polysilazane-
The coating composition is made in alkyl copolymer.
16. the preparation method of coating composition as claimed in claim 15, which is characterized in that mixing polysilazane and poly- silicon oxygen
After alkane, the preparation method of the coating composition further include: the step of catalyst is added into polysilazane and polysiloxanes,
In, the range that the catalyst accounts for the mass percent for preparing raw material is 0.01~5%, and the catalyst is amines catalysis
Agent and/or metal-based catalysts.
17. the preparation method of coating composition as claimed in claim 15, which is characterized in that generate the poly- silicon oxygen of polysilazane-
After alkyl copolymer, before the coating composition is made, the preparation method of the coating composition further include: poly- to polysilazane-
The step of solvent is added in silicone copolymers, wherein the range that the solvent accounts for the mass percent for preparing raw material is
10~66%, the solvent in alkane solvents, ether solvent, ketones solvent and benzenesulfonamide derivative species solvent at least one
Kind.
18. the preparation method of coating composition as claimed in claim 15, which is characterized in that generate the poly- silicon oxygen of polysilazane-
After alkyl copolymer, before the coating composition is made, the preparation method of the coating composition further include: poly- to polysilazane-
The step of filler is added in silicone copolymers, wherein the range that the filler accounts for the mass percent for preparing raw material is 1
~50%, the filler be selected from silicon carbide, aluminium oxide, titanium oxide, zinc oxide, magnesia, aluminium hydroxide, white carbon black, concave convex rod,
At least one of kaolin, bentonite, glass microsphere and ceramic microsphere.
19. a kind of coating piece, which is characterized in that the coating piece includes matrix and the coating for being formed in matrix surface, the painting
Contain the coating composition as described in any one of claim 1-14 in layer.
20. coating piece as claimed in claim 19, which is characterized in that the range of the thickness of the coating is 1~100 micron.
21. a kind of preparation method of coating piece, comprising the following steps:
Matrix and the coating composition as described in any one of claim 1-14 are provided；
By the coating composition in the surface of matrix, the coating piece is made.
22. a kind of household electrical appliance, which is characterized in that the household electrical appliance include such as the described in any item paintings of claim 19-20
Cover part.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172160.9A CN109401618A (en) | 2018-10-08 | 2018-10-08 | Coating composition and preparation method thereof, coating piece and preparation method thereof, household electrical appliance |
| PCT/CN2019/109974 WO2020073889A1 (en) | 2018-10-08 | 2019-10-08 | Coating composition and preparation method therefor, coating member and preparation method therefor, and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172160.9A CN109401618A (en) | 2018-10-08 | 2018-10-08 | Coating composition and preparation method thereof, coating piece and preparation method thereof, household electrical appliance |
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| CN109401618A true CN109401618A (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811172160.9A Pending CN109401618A (en) | 2018-10-08 | 2018-10-08 | Coating composition and preparation method thereof, coating piece and preparation method thereof, household electrical appliance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732474A (en) * | 2019-11-21 | 2020-01-31 | 广东美的制冷设备有限公司 | Surface processing method of heat exchanger side plate, heat exchanger and household appliance |
| WO2020073889A1 (en) * | 2018-10-08 | 2020-04-16 | 广东美的厨房电器制造有限公司 | Coating composition and preparation method therefor, coating member and preparation method therefor, and household appliance |
| CN110732474B (en) * | 2019-11-21 | 2024-04-26 | 广东美的制冷设备有限公司 | Surface machining method of heat exchanger side plate, heat exchanger and household appliance |
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| WO2020073889A1 (en) * | 2018-10-08 | 2020-04-16 | 广东美的厨房电器制造有限公司 | Coating composition and preparation method therefor, coating member and preparation method therefor, and household appliance |
| CN110732474A (en) * | 2019-11-21 | 2020-01-31 | 广东美的制冷设备有限公司 | Surface processing method of heat exchanger side plate, heat exchanger and household appliance |
| CN110732474B (en) * | 2019-11-21 | 2024-04-26 | 广东美的制冷设备有限公司 | Surface machining method of heat exchanger side plate, heat exchanger and household appliance |
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