CN109370427A

CN109370427A - Coating composition and preparation method thereof, coating piece and preparation method thereof, household electrical appliance

Info

Publication number: CN109370427A
Application number: CN201811172187.8A
Authority: CN
Inventors: 赵莉
Original assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date: 2018-10-08
Filing date: 2018-10-08
Publication date: 2019-02-22
Anticipated expiration: 2038-10-08
Also published as: CN109370427B

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, polysiloxanes and far-infrared additive, at least one or the far-infrared additive of the far-infrared additive selected from boron nitride, titanium nitride, zirconium nitride, manganese dioxide and zirconium dioxide are the mixture of at least one and tourmaline of boron nitride, titanium nitride, zirconium nitride, manganese dioxide and zirconium dioxide.Present invention coating as obtained by the coating composition not only has the advantages that hardness is high, adhesion is good, temperature tolerance is good and reaches food touch-safe rank, and the heating efficiency and heat insulation effect of the household electrical appliance using the coating also can be improved.

Description

Coating composition and preparation method thereof, coating piece and preparation method thereof, household electrical appliance

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 household electrical appliance, the material of above-mentioned coating is main Are as follows: enamel (enamel can be formed in product surface by enamel technology), organosilicon, Teflon, epoxy powder (can be used and dust Mode the epoxy powder is sprayed at product surface) or silica solution+organic-silicon hybridization coating.However, above-mentioned coating has firmly Spend the disadvantages of low, adhesion is poor, temperature tolerance is poor and there are food touch-safe hidden danger.Moreover, above-mentioned coating is to household electrical appliance Heating efficiency and heat insulation effect do not promote effect.

Summary of the invention

The main purpose of the present invention is to provide a kind of coating compositions, it is intended to which making will be as obtained by the coating composition Coating not only has the advantages that hardness is high, adhesion is good, temperature tolerance is good and reaches food touch-safe rank, also can be improved and answers With the heating efficiency and heat insulation effect of the household electrical appliance of the coating.

In order to solve the above technical problems, the raw material for preparing of coating composition provided by the invention includes polysilazane, poly- silicon Oxygen alkane and far-infrared additive, the far-infrared additive are selected from boron nitride, titanium nitride, zirconium nitride, manganese dioxide and zirconium dioxide at least One kind or the far-infrared additive are at least one and electrical of boron nitride, titanium nitride, zirconium nitride, manganese dioxide and zirconium dioxide The mixture of stone.

Further, it is 6~81% that the polysilazane, which accounts for and prepares the mass percent range of raw material, the polysiloxanes Accounting for and preparing the mass percent range of raw material is 4~79%, and the far-infrared additive, which accounts for, to be prepared the mass percent range of raw material and be 0.01~15%.

Further, the structural formula of the polysilazane are as follows:Wherein, R₁For hydrogen-based, alkane, cycloalkanes Hydrocarbon, olefine, aryl, alkoxy, alkyl siloxy or alkylamino radical, R₂For hydrogen-based, alkane, cycloalkane, olefine, aryl, alkane Oxygroup, 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 structural formula of the polysiloxanes are as follows:Wherein, R₄For hydrogen-based, alkane, ring Alkane, olefine, aryl, alkoxy or alkyl siloxy, R₅For hydrogen-based, alkane, cycloalkane, olefine, aryl, alkoxy, Or alkyl siloxy.

Further, the raw material for preparing further includes solvent, and the solvent accounts for the mass percent for preparing raw material Range is 10~66%, and the solvent is in alkane solvents, ether solvent, ketones solvent and benzenesulfonamide derivative species solvent It is at least one.

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 further includes catalyst, and the catalyst accounts for the quality percentage for preparing raw material The range of ratio 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 further includes filler, and the filler accounts for the mass percent for preparing raw material Range be 1~50%, the filler be selected from silicon carbide, aluminium oxide, titanium oxide, zinc oxide, magnesia, aluminium hydroxide, white carbon black, At least one of concave convex rod, kaolin, bentonite, glass microsphere and ceramic microsphere.

Further, the raw material for preparing further includes anion agent, and the anion agent accounts for the quality for preparing raw material The range of percentage be 0.01~15%, the anion agent in Strange ice stone, tourmaline, opal and rare talent's stone extremely Few a kind of or described anion agent is at least one of Strange ice stone, tourmaline, opal and rare talent's stone, is aoxidized with terres rares The mixture of object and/or rare earth composite salt.

Further, the raw material for preparing further includes filler, solvent and catalyst, and the filler accounts for the raw material for preparing The range of mass percent is 1~50%, and the range that the solvent accounts for the mass percent for preparing raw material is 10~66%, The range that the catalyst accounts for the mass percent for preparing raw material is 0.01~5%, the polysiloxanes and polysilazane The range for accounting for the mass percent for preparing raw material is 10~80%.

The present invention also provides a kind of preparation methods of coating composition, comprising the following steps:

Polysilazane, polysiloxanes and far-infrared additive be provided, the far-infrared additive be selected from boron nitride, titanium nitride, zirconium nitride, At least one or the far-infrared additive of manganese dioxide and zirconium dioxide be boron nitride, titanium nitride, zirconium nitride, manganese dioxide, And the mixture of at least one and tourmaline of zirconium dioxide；

Mixing polysilazane and polysiloxanes, polysilazane and polysiloxanes are copolymerized, and it is poly- to generate polysilazane- Silicone copolymers；

Far-infrared additive is added into the polysilazane-polysiloxane copolymer, the coating composition is made.

Further, it after mixing polysilazane and polysiloxanes, is added into the polysilazane-polysiloxane copolymer Before far-infrared additive, the preparation method of the coating composition further include: catalyst is added into polysilazane and polysiloxanes Step, wherein the range that the catalyst accounts for the mass percent for preparing raw material is 0.01~5%, and the catalyst is 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.

Further, after generating polysilazane-polysiloxane copolymer, before the coating composition is made, the coating The preparation method of composition further include: the step of anion agent is added into polysilazane-polysiloxane copolymer, wherein institute Stating anion agent and accounting for the range of the mass percent for preparing raw material is 0.01~15%, and the anion agent is selected from odd ice At least one of stone, tourmaline, opal and rare talent's stone or the anion agent be Strange ice stone, tourmaline, opal and At least one of rare talent's stone, the mixture with rare-earth oxide and/or rare earth composite salt.

The present invention also provides a kind of coating pieces comprising matrix and the coating for being formed in described matrix surface, the coating In contain the coating composition.

Further, the range of the thickness of the coating is 1 micron~100 microns.

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, coating is formed, 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, polysiloxanes and far-infrared additive, The far-infrared additive is selected from at least one or described remote red of boron nitride, titanium nitride, zirconium nitride, manganese dioxide and zirconium dioxide Outer dose be boron nitride, titanium nitride, zirconium nitride, manganese dioxide and zirconium dioxide at least one and tourmaline mixture.Poly- silicon Azane and polysiloxanes can be copolymerized, and generate polysilazane-polysiloxane copolymer, the polysilazane-polysiloxanes Copolymer has the advantages that hardness is high, adhesion is good and temperature tolerance is good, so that being had by the coating that the coating composition is formed hard The advantage that degree is high, adhesion is good and temperature tolerance is good.The far-infrared additive is scattered in polysilazane-polysiloxane copolymer, institute Stating far-infrared additive can make the coating formed by the coating composition have far infrared performance.This is applied the coating into household electrical appliance When, the heating efficiency and heat insulation effect of the household electrical appliance can be improved.Moreover, the polysilazane, polysiloxanes, polysilazane-are poly- Silicone copolymers and far-infrared additive are not admitted to poisonous and harmful substance, so that the coating as made from the coating composition also has There is the advantages of 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, polysiloxanes and far-infrared additive, the far-infrared additive At least one or the far-infrared additive selected from boron nitride, titanium nitride, zirconium nitride, manganese dioxide and zirconium dioxide are nitridation Boron, titanium nitride, zirconium nitride, manganese dioxide and zirconium dioxide at least one and tourmaline mixture.

The far-infrared additive can be graininess, and the partial size of the far-infrared additive may be less than 3 microns, it is preferable that micro- less than 2 Rice, more preferably less than 1 micron.

In an embodiment of the present invention, the range of the partial size of the far-infrared additive is 0.2~0.8 micron.It should be understood that The partial size of the far-infrared additive is that 0.2 micron, 0.3 micron, 0.4 micron, 0.5 micron, 0.6 micron, 0.7 micron or 0.8 are micro- Rice.

It should be understood that when setting 0.2~0.8 micron for the particle size range of the far-infrared additive, far-infrared additive can be compared with It is homogeneously dispersed in and prepares in raw material, and make the surface of coating obtained more smooth.

In an alternative embodiment of the invention, the range of the partial size of the far-infrared additive is 0.2~0.5 micron, to obtain more Add smooth coating.

In an embodiment of the present invention, grinder can be used to grind far-infrared additive, to reduce the grain of far-infrared additive Diameter, then treated that far-infrared additive is added in polysilazane-polysiloxane copolymer by ground.

In an alternative embodiment of the invention, it after far-infrared additive being added to polysilazane-polysiloxane copolymer, is applied The head product of layer, can be ground the head product, to reduce the partial size of head product mid and far infrared agent, and reduce reunion.

In addition, far-infrared additive under the irradiation of sunlight (especially ultraviolet light), generates OH^-, OH^-Microwave can effectively be removed In furnace or indoor benzene, formaldehyde, sulfide, ammonia and stink substances, and there is sterilizing function.

It is 6~81% that the polysilazane, which accounts for and prepares the mass percent range of raw material, and it is former that the polysiloxanes accounts for preparation The mass percent range of material be 4~79%, the far-infrared additive account for prepare raw material mass percent range be 0.01~ 15%.

In an embodiment of the present invention, the polysilazane account for the mass percent for preparing raw material range be 6~ 81%.Preferably, it is 10~70% 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~ 79%.Preferably, it is 10~60% that the polysiloxanes, which accounts for the range of the mass percent for preparing raw material, more preferably 15~50%, further preferably 20~40%.

In an embodiment of the present invention, it is 0.01 that the far-infrared additive, which accounts for the range of the mass percent for preparing raw material, ~15%.Preferably, it is 1~15% that the far-infrared additive, which accounts for the range of the mass percent for preparing raw material, more preferably It is 5~10%.

It is 6~81% that the polysilazane of technical solution of the present invention, which accounts for and prepares the mass percent range of raw material, the poly- silicon It is 4~79% that oxygen alkane, which accounts for and prepares the mass percent range of raw material, at this point, polysilazane can be copolymerized with polysiloxanes Generate polysilazane-polysiloxane copolymer of certain content, far-infrared additive, which accounts for, to be prepared the mass percent range of raw material and be 0.01~15%, and be homogeneously dispersed in polysilazane-polysiloxane copolymer, so that the polysilazane-under the content is poly- Silicone copolymers and far-infrared additive can make coating as made from it not only and have that hardness is high, adhesion is good, temperature tolerance is good and food The advantages of product touch-safe, also has the advantages that improve the heating efficiency and heat insulation effect of the household electrical appliance.

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 prepared in raw material 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 for preparing the polysilazane in raw material of technical solution of the present invention is 100~1000, point of polysiloxanes Son amount is 100~1300, and the polysiloxanes that the polysilazane and molecular weight that molecular weight is 100~1000 are 100~1300 occurs After copolyreaction, polysilazane-polysiloxane copolymer is produced, polysilazane-polysiloxane copolymer painting will be contained After feed composition is formed in matrix formation coating, which has preferable hardness, adhesion, temperature tolerance and reaches food contact The advantages of security level.

The raw material for preparing further includes solvent, the solvent account for the mass percent for preparing raw material range be 10~ 66%, the solvent is selected from least one of alkane solvents, ether solvent, ketones solvent and benzenesulfonamide derivative species solvent.

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.

Polysilazane-the polysiloxane copolymer dissolves in solvent, so that polysilazane-polysiloxane copolymer can Relatively easily it is formed in the surface of matrix.

The raw material for preparing further includes catalyst, and 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.

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 catalyst of the invention can be also other catalyst with similar performance, the present invention is to this 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 further includes filler, the filler account 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 less than 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 relatively evenly divide when setting 0.2~0.8 micron for the particle size range of the filler It dissipates in preparing in raw material, and makes the surface of coating obtained more smooth.

In an alternative embodiment of the invention, the range of the partial size of the filler is 0.2~0.5 micron, more flat to obtain Whole coating.

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 in polysilazane-polysiloxane copolymer.

In an alternative embodiment of the invention, after filler being added to polysilazane-polysiloxane copolymer, coating is obtained Head product can be ground the head product, to reduce the partial size of filler in head product.

In an embodiment of the present invention, it is scattered in coating to the uniform filling.

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 improve hardness, adhesion and temperature tolerance by coating.

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.

The raw material for preparing further includes anion agent, and the anion agent accounts for the model of the mass percent for preparing raw material Enclose is 0.01~15%, preferably 0.1~10%, more preferably 1~10%, further preferably 2~8%.

The anion agent be selected from least one of Strange ice stone, tourmaline, opal and rare talent's stone or it is described bear from Sub- agent is the mixture of at least one of Strange ice stone, tourmaline, opal and rare talent's stone with the substance containing rare earth element.

The Strange ice stone, tourmaline, opal and rare talent's stone may be collectively referred to herein as component A.

The substance containing rare earth element can be rare-earth oxide or rare earth composite salt.

In one embodiment of the invention, the anion agent includes component A and rare-earth oxide.

In another embodiment of the present invention, the anion agent includes component A and rare earth composite salt.

In further embodiment of this invention, the anion agent includes component A, rare-earth oxide and rare earth composite salt.

The range that component A accounts for the mass percent for preparing raw material is 8~9.5%, preferably 8~9%.

The substance containing rare earth element account for the mass percent for preparing raw material range be 0.5~2%, preferably 1~ 2%.

The rare earth element is lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), yttrium (Y) and scandium (Sc).

The rare-earth oxide can be the oxide of above-mentioned rare earth element, such as ceria, cerium sesquioxide, three oxidations Two lanthanums, neodymium oxide etc..

The rare earth complex salt can be the salt of above-mentioned rare earth element, such as lanthanum orthophosphate, cerous phosphate, neodymium phosphate, cerous nitrate, nitric acid Lanthanum, neodymium nitrate etc..

The anion agent can be graininess, and the partial size of the anion agent may be less than 3 microns, it is preferable that micro- less than 2 Rice, more preferably less than 1 micron.

In an embodiment of the present invention, the range of the partial size of the anion agent is 0.2~0.8 micron.It should be understood that The partial size of the anion agent is that 0.2 micron, 0.3 micron, 0.4 micron, 0.5 micron, 0.6 micron, 0.7 micron or 0.8 are micro- Rice.

It should be understood that when setting 0.2~0.8 micron for the particle size range of the anion agent, anion agent can be compared with It is homogeneously dispersed in and prepares in raw material, and make the surface of coating obtained more smooth.

In an alternative embodiment of the invention, the range of the partial size of the anion agent is 0.2~0.5 micron, to obtain more Add smooth coating.

In an embodiment of the present invention, grinder can be used to grind anion agent, to reduce the grain of anion agent Diameter, then treated that anion agent is added in polysilazane-polysiloxane copolymer by ground.

In an alternative embodiment of the invention, it after anion agent being added to polysilazane-polysiloxane copolymer, is applied The head product of layer, can be ground the head product, to reduce the partial size of anion agent in head product.

In an embodiment of the present invention, the anion agent is homogeneously dispersed in coating.

The raw material for preparing of technical solution of the present invention further includes anion agent, which can be with the poly- silicon nitrogen of polysiloxanes- Alkane copolymerization product matches, so that the coating composition has the function of releasing anion, that is, has bacteria resistance function and purification Air function.Specifically, the anion agent is capable of releasing negative ion sterilizes and removes in micro-wave oven or indoor peculiar smell and various Pernicious gas.

It should be noted that other anion agent with negative ion-releasing function also can be used as anion of the invention Agent, the present invention are without limitation.

The raw material for preparing further includes wave absorbing agent.

The range that the wave absorbing agent accounts for the mass percent for preparing raw material is 0.01~20%.Preferably, the suction The range that wave agent accounts for the mass percent for preparing raw material is 1~20%, more preferably 5~15%, further preferably 5 ~10%.

The wave absorbing agent is selected from silicon carbide, silicon nitride, graphene, zinc oxide, titanium carbide, carbon nanotube, boron nitride and nitrogen Change at least one of titanium.

The wave absorbing agent can be graininess, and the partial size of the wave absorbing agent may be less than 3 microns, it is preferable that less than 2 microns, more Add preferably less than 1 micron.

In an embodiment of the present invention, the range of the partial size of the wave absorbing agent is 0.2~0.8 micron.It should be understood that institute The partial size for stating wave absorbing agent 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 wave absorbing agent can be more uniform when setting 0.2~0.8 micron for the particle size range of the wave absorbing agent Ground, which is scattered in, to be prepared in raw material, and makes the surface of coating obtained more smooth.

In an alternative embodiment of the invention, the range of the partial size of the wave absorbing agent is 0.2~0.5 micron, to obtain more Smooth coating.

In an embodiment of the present invention, grinder can be used to grind wave absorbing agent, to reduce the partial size of wave absorbing agent, then Treated that wave absorbing agent is added in polysilazane-polysiloxane copolymer by ground.

In an alternative embodiment of the invention, after wave absorbing agent being added to polysilazane-polysiloxane copolymer, coating is obtained Head product, which can be ground, to reduce the partial size of wave absorbing agent in head product.

In an embodiment of the present invention, the wave absorbing agent is homogeneously dispersed in coating.

The raw material for preparing of technical solution of the present invention includes wave absorbing agent, which can be homogeneously dispersed in coating composition In, the absorbing property of the wave absorbing agent is excellent, so that the coating as made from the coating composition can have under relatively thin thickness There is higher wave absorbing efficiency.

It should be noted that other wave absorbing agents with absorbing property also can be used as wave absorbing agent of the invention, the present invention couple This is with no restrictions.

In an embodiment of the present invention, the raw material for preparing of the coating composition further includes colorant, which accounts for the system The range of the mass percent of standby raw material is 0.01~5%, preferably 0.1~5%, more preferably 1~5%, further excellent It is selected as 2~3%.

The colorant is selected from white pigment, yellow colorant, orange pigment, black pigment, purple, brown colorant, green At least one of color colorant, blue colorant, grey colorant and red colorant, so that by obtained by the coating composition Coating has colorful appearance.

The white pigment is selected from stibium trioxide (Antimony white), barium sulfate (Barium sulfate), lithopone (Lithopone), at least one of titanium white (Titanium white) and zinc white (Zinc white).

The yellow colorant is nickel titanate antimony (Nickel titanate antimony) and/or titanium chromium palm fibre (Chrome titanium brown)。

The orange pigment is zinc-tin rutile (Rutile Tin Zinc).

The black pigment is black selected from copper-chrome black spinelle (Copper chromite black spinel), titanium (Titanium black), manganese dioxide (MnO₂), Ma Sihei (Mars black), ivory black (Ivory black) and carbon black At least one of (Carbon black).

The purple is cobalt phosphate (Cobalt Phosphate).

The brown colorant is titanium manganese brown (Manganese antimony titanate brown) and/or zinc-iron chromium palm fibre (Chromium iron zinc brown)。

The green pigment is cobalt green (Cobalt green), malachite (Malachite) and glauconite (Green At least one of earth).

The blue colorant is selected from celestine (Ultramarine), cobalt blue (Cobalt blue), Egyptian blue (Egyptian Blue), at least one of the Chinese blue (Han blue), chessy copper (Azurite), yttrium indium manganese blue (YInMn blue).

The grey colorant is copper-chrome black spinelle (Copper chromite black spinel), titanium is black (Titanium black), manganese dioxide (MnO₂), Ma Sihei (Mars black), violet black (Vine black), ivory black At least one of (Ivory black), carbon black (Carbon black) and stibium trioxide (Antimony white), barium sulfate (Barium Sulfate), lithopone (Lithopone), titanium white (Titanium white), in zinc white (Zinc white) Burnt ochre (Burnt sienna), Indian red (India can be also further added in the mixture at least one mixture Red), at least one of cobalt blue (Cobalt blue).

The red colorant is selected from burnt sienna (Burnt Sienna), burnt ochre (Red ochre) and Indian red (India At least one of Red).

It should be understood that colorant can be selected according to actual needs, so that coating shows preferable appearance.

In an embodiment of the present invention, the coating prepare raw material include: polysiloxanes, polysilazane, far-infrared additive, Filler, solvent and catalyst.Wherein, the polysiloxanes and polysilazane account for the mass percent range for preparing raw material It is 10%~80%, it is 0.01~15% that far-infrared additive, which accounts for the mass percent range for preparing raw material, and filler accounts for the system The mass percent range of standby raw material is 1~50%, and it is 10~66% that solvent, which accounts for the mass percent range for preparing raw material, It is 0.01~5% that catalyst, which accounts for the mass percent range for preparing raw material,.

In an alternative embodiment of the invention, the raw material for preparing of the coating includes: polysiloxanes, polysilazane, far infrared Agent, filler, solvent, anion agent, wave absorbing agent and catalyst.Wherein, it is former to account for the preparation for the polysiloxanes and polysilazane The mass percent range of material be 10%~80%, far-infrared additive account for the mass percent range for preparing raw material be 0.01~ 15%, it is 1~50% that filler, which accounts for the mass percent range for preparing raw material, and solvent accounts for the quality percentage for preparing raw material It is 10~66% than range, it is 0.01~15% that anion agent, which accounts for the mass percent range for preparing raw material, and wave absorbing agent accounts for The mass percent range for preparing raw material is 0.01~20%, and catalyst accounts for the mass percent range for preparing raw material It is 0.01~5%.

In still another embodiment of the process, the raw material for preparing of the coating includes: polysiloxanes, polysilazane, far infrared Agent, filler, solvent, colorant and catalyst.Wherein, the polysiloxanes and polysilazane account for the quality percentage for preparing raw material It is 10%~80% than range, it is 0.01~15% that far-infrared additive, which accounts for the mass percent range for preparing raw material, and filler accounts for The mass percent range for preparing raw material is 1~50%, and it is 10 that solvent, which accounts for the mass percent range for preparing raw material, ~66%, it is 0.01~5% that colorant, which accounts for the mass percent range for preparing raw material, and catalyst accounts for the matter for preparing raw material Measuring percentage range is 0.01~5%.

In yet another embodiment of the invention, the raw material for preparing of the coating includes: polysiloxanes, polysilazane, far infrared Agent, filler, solvent, anion agent, wave absorbing agent, colorant and catalyst.Wherein, the polysiloxanes and polysilazane account for the system The mass percent range of standby raw material is 10%~80%, and far-infrared additive accounts for the mass percent range for preparing raw material and is 0.01~15%, 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 0.01~15% that anion agent, which accounts for the mass percent range for preparing raw material, is inhaled It is 0.01~10% that wave agent, which accounts for the mass percent range for preparing raw material, and colorant accounts for the mass percent for preparing raw material Range is 0.01~5%, and it is 0.01~5% that catalyst, which accounts for the mass percent range for preparing raw material,.

It should be understood that polysilazane of the invention, polysiloxanes, polysilazane-polysiloxane copolymer, far infrared Agent, solvent, colorant, anion agent, wave absorbing agent, catalyst and filler are not admitted to poisonous and harmful substance, so that by preparation original The obtained coating of material has the advantages that food touch-safe.

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 understood that consistent when the time of the first stir process is with 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.

In an alternative embodiment of the invention, it after far-infrared additive being added to polysilazane-polysiloxane copolymer, is applied The head product of layer, can be ground the head product, to reduce the partial size of head product mid and far infrared agent.

After mixing polysilazane and polysiloxanes, far-infrared additive is added into the polysilazane-polysiloxane copolymer Before, 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%, 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.

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, it is added into the polysilazane-polysiloxane copolymer remote red Before outer dose or when far-infrared additive is added, the preparation method of the coating composition further include: to polysilazane-polysiloxanes copolymerization The step of solvent, filler, anion agent and wave absorbing agent are added in object.

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 solvent in alkane solvents, ether solvent, ketones solvent and benzenesulfonamide derivative species solvent at least one Kind.

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 filler is 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.

The anion agent account for the mass percent for preparing raw material range be 0.01~15%, preferably 0.1~ 10%, more preferably 1~10%, further preferably 2~8%.

In an embodiment of the present invention, into polysilazane-polysiloxane copolymer be added solvent, filler, anion agent, After far-infrared additive and wave absorbing agent, third time stir process can be carried out to it so that polysilazane-polysiloxane copolymer, solvent, Filler, anion agent and wave absorbing agent are uniformly mixed.

It should be understood that solvent first can be added into the polysilazane-polysiloxane copolymer, adds filler, bears Ionic agent, far-infrared additive and wave absorbing agent carry out third time stir process to it.It can also be simultaneously to the poly- silicon oxygen of the polysilazane- Solvent, filler, anion agent, far-infrared additive and wave absorbing agent are added in alkyl copolymer, third time stir process is carried out to it.

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, anion agent and wave absorbing agent may be less than 3 microns, it is preferable that more excellent less than 2 microns It is selected as less than 1 micron.

In an embodiment of the present invention, the range of the partial size of the filler, anion agent and wave absorbing agent is 0.2~0.8 micro- Rice.It should be understood that the partial size of the filler, anion agent and wave absorbing agent is 0.2 micron, 0.3 micron, 0.4 micron, it is 0.5 micro- Rice, 0.6 micron, 0.7 micron or 0.8 micron.

It should be understood that when setting 0.2~0.8 micron for the particle size range of the filler, anion agent and wave absorbing agent, Filler, anion agent and wave absorbing agent can be homogeneously dispersed 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, anion agent and wave absorbing agent, to reduce The partial size of filler, anion agent and wave absorbing agent, then treated that filler, anion agent and wave absorbing agent are added to poly- silicon by ground In azane-polysiloxane copolymer.

In another implementation of the present invention, directly the biggish filler of partial size, anion agent and wave absorbing agent can be added to poly- silicon In azane-polysiloxane copolymer, then the coating composition is ground, to reduce filling out in the coating composition The partial size of material, anion agent and wave absorbing agent.

The time of the milled processed can be 0.5~1 hour.Milling time can be adjusted according to actual needs, to obtain Filler, anion agent and the wave absorbing agent 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, anion agent and wave absorbing agent be also dispersible in the solvent and In polysilazane-polysiloxane copolymer, to increase the hardness, adhesion and temperature tolerance of the coating composition, it can also make this Coating composition has the function of releasing anion and absorbing property.

It should be understood that color can also be added together when filler being added into the polysilazane-polysiloxane copolymer Material, so that coating has preferable appearance.

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 according to actual needs, and above-mentioned mixing speed, mixing time etc. are the representative value in preparation process, it can root It is adjusted according to actual demand.

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.

Component, proportion of the coating composition etc. please refer to above-described embodiment, since this coating piece is using above-mentioned all Whole technical solutions of embodiment, therefore at least all beneficial effects brought by the technical solution with above-described embodiment, This is no longer repeated one by one.

The range of the thickness of the coating is 1 micron~100 microns, preferably 1~80 micron, more preferably 5~70 Micron, further preferably 10~50 microns.

The thickness of the coating can for 1 micron, 2 microns, 5 microns, 10 microns, 15 microns, 20 microns, 25 microns, it is 30 micro- Rice, 35 microns, 40 microns, 45 microns, 50 microns, 55 microns, 60 microns, 65 microns, 70 microns, 75 microns, 80 microns, it is 85 micro- Rice, 90 microns, 95 microns or 100 microns.

It should be understood that the thickness of the coating can be adjusted according to actual demand.

In technical solution of the present invention, the range of the thickness of the coating can make have the painting when for 1~100 micron The household electrical appliance of layer have preferable heating efficiency and heat insulation effect.

Matrix and the coating composition are provided；

It should be understood that can be first ground to coating composition, reunited with reducing, then treated by ground Coating composition 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, and preferably 200 DEG C~280 DEG C, so that the curing of coating composition of matrix surface, formation is applied Layer.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 substrate 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 substrate carry out sanding processing Technical solution, the preparation method of coating piece of the invention also has the advantages that environmental protection.

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 during the coating piece, harmful substance will not be generated, is made Obtain the characteristic that the coating composition, coating, coating piece and electronic device all have safety and environmental protection.

The following are several embodiments of the preparation method of coating piece of the present invention:

Embodiment 1

Offer prepares raw material, by mass percentage, this prepare raw material include: polysilazane 50%, polysiloxanes 40%, And the boron nitride 10% that particle size range is 0.2~0.3 micron, wherein the R of the polysilazane₁For hydrogen-based, R₂For hydrogen-based, R₃For Hydrogen-based, the R of the polysiloxanes₄For hydrogen-based, R₅For olefine；

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；

Boron nitride is added into the copolymer, is stirred with 1000 revs/min of speed, obtains coating composition； And

By the coating composition in the surface of matrix, the coating with a thickness of 50 microns is formed, the coating piece is made.

Embodiment 2

Offer prepares raw material, by mass percentage, this prepare raw material include: polysilazane 40%, polysiloxanes 25%, The titanium nitride 10% that butyl oxide 25% and particle size range are 0.21~0.33 micron, wherein the R of the polysilazane₁For aryl, R₂For hydrogen-based, R₃For alkylamino radical, the R of the polysiloxanes₄For cycloalkane, R₅For alkyl siloxy；

Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 200 revs/min of speed Alkane, polysiloxanes are copolymerized with polysilazane, generate polysiloxanes-polysilazane copolymers；

After butyl oxide is added into the copolymer, titanium nitride is added, is stirred with 1100 revs/min of speed, Obtain coating composition；And

By the coating composition in the surface of matrix, the coating with a thickness of 30 microns is formed, the coating piece is made.

Embodiment 3

Offer prepares raw material, by mass percentage, this prepare raw material include: polysilazane 20%, polysiloxanes 20%, Toluene 18%, isophorone 10%, the aluminium hydroxide 10% that particle size range is 2~3 microns, the carbon that particle size range is 2~3 microns SiClx 10%, the zirconium nitride 10% and stannous methide 2% that particle size range is 2~3 microns, wherein the R of the polysilazane₁For Olefine, R₂For alkylsiloxane, R₃For alkane, the R of the polysiloxanes₄For alkane, R₅For olefine；

Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 300 revs/min of speed Alkane is added stannous methide, is stirred with 1000 revs/min of speed, to promote polysiloxanes to be copolymerized with polysilazane Reaction generates polysiloxanes-polysilazane copolymers；

After toluene, isophorone is added into the copolymer, aluminium hydroxide, silicon carbide and zirconium nitride are added, with 1200 revs/min of speed is stirred, and obtains coating head product；

The head product is ground so that the range of the partial size of aluminium hydroxide, silicon carbide and zirconium nitride be 0.2~ 0.6 micron, obtain coating composition；And

By the coating composition in the surface of matrix, the coating with a thickness of 100 microns is formed, the coating is made Part.

Embodiment 4

Offer prepares raw material, by mass percentage, this prepare raw material include: polysilazane 15%, polysiloxanes 15%, Ortho-xylene 20%, petroleum ether 10%, the aluminium hydroxide 11% that particle size range is 2~3 microns, particle size range are 2~3 microns White carbon black 15%, the manganese dioxide 10% and stannous methide 4% that particle size range is 2~3 microns, wherein the polysilazane R₁For hydrogen-based, R₂For cycloalkane, R₃For hydrogen-based, the R of the polysiloxanes₄For alkylamino radical, R₅For alkoxy；

Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 500 revs/min of speed Alkane is added stannous methide, is stirred with 1050 revs/min of speed, to promote polysiloxanes to be copolymerized with polysilazane Reaction generates polysiloxanes-polysilazane copolymers；

After ortho-xylene, petroleum ether is added into the copolymer, aluminium hydroxide, white carbon black and manganese dioxide are added, It is stirred with 1200 revs/min of speed, obtains coating head product；

The head product is ground, so that the range of the partial size of aluminium hydroxide, white carbon black and manganese dioxide is 0.2~0.4 micron, obtain coating composition；And

By the coating composition in the surface of matrix, the coating with a thickness of 1 micron is formed, the coating piece is made.

Embodiment 5

Offer prepares raw material, by mass percentage, this prepare raw material include: polysilazane 12%, polysiloxanes 11%, N-hexane 17%, acetone 20%, the concave convex rod 4% that particle size range is 2~3 microns, the white carbon black that particle size range is 2~3 microns 4%, particle size range is 2~3 microns magnesia 14%, the zirconium oxide 10% that particle size range is 2~3 microns, particle size range 2 ~3 microns of opal 2%, the Strange ice stone 2% that particle size range is 2~3 microns, the titanium white 3% that particle size range is 2~3 microns, And triethylene tetramine 1%, wherein the R of the polysilazane₁For alkylamino radical, R₂For alkyl, R₃For aryl, the polysiloxanes R₄For alkylsiloxane, R₅For cycloalkane；

Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 400 revs/min of speed Alkane is added triethylene tetramine, is stirred with 1250 revs/min of speed, to promote polysiloxanes and polysilazane to occur altogether Poly- reaction, generates polysiloxanes-polysilazane copolymers；

After n-hexane, acetone is added into the copolymer, concave convex rod, white carbon black, magnesia, zirconium oxide, egg are added Bai Shi, Strange ice stone and titanium white are stirred with 1500 revs/min of speed, obtain coating head product；And

The head product is ground so that concave convex rod, white carbon black, magnesia, zirconium oxide, opal, Strange ice stone, And the range of the partial size of titanium white is 0.21~0.33 micron, obtains coating composition；

By the coating composition in the surface of matrix, the coating with a thickness of 8 microns is formed, the coating piece is made.

Embodiment 6

Offer prepares raw material, by mass percentage, this prepare raw material include: polysilazane 10%, polysiloxanes 10%, Methyl ethyl ketone 10%, meta-xylene 23%, the aluminium oxide 30% that particle size range is 0.2~0.32 micron, particle size range be 0.21~ 0.32 micron of titanium oxide 3%, the bentonite 3% that particle size range is 0.2~0.36 micron, particle size range are 0.2~0.32 micro- The titanium nitride 5% of rice, the tourmaline 5% that particle size range is 0.2~0.32 micron, triphenyltin 1%, wherein the poly- silicon nitrogen The R of alkane₁For aryl, R₂For aryl, R₃For hydrogen-based, the R of the polysiloxanes₄For olefine, R₅For hydrogen-based；

Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 500 revs/min of speed Alkane is added triphenyltin, is stirred with 1750 revs/min of speed, to promote polysiloxanes to be copolymerized with polysilazane Reaction generates polysiloxanes-polysilazane copolymers；

After methyl ethyl ketone, meta-xylene is added into the copolymer, aluminium oxide, titanium oxide, bentonite, titanium nitride are added And tourmaline, it is stirred with 1500 revs/min of speed, obtains coating composition；

Coating composition is ground, is reunited with reducing；And

By the coating composition of ground processing in the surface of matrix, the coating with a thickness of 3 microns is formed, institute is made State coating piece.

Embodiment 7

Offer prepares raw material, and by mass percentage, it includes: polysilazane 8%, polysiloxanes 7%, first that this, which prepares raw material, Benzene 49%, aluminium oxide 17% that particle size range is 2~3 microns, the zinc oxide 5% that particle size range is 2~3 microns, particle size range For 0.2~0.3 micron of ceramic microsphere 3%, the boron nitride 5% that particle size range is 2~3 microns, particle size range is 2~3 microns Tourmaline 5%, acetic acid palladium salt 1%, wherein the R of the polysilazane₁For alkane, R₂For alkane, R₃For hydrogen-based, the poly- silicon The R of oxygen alkane₄For alkoxy, R₅For alkoxy；

Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 300 revs/min of speed Alkane is added acetic acid palladium salt, is stirred with 1200 revs/min of speed, to promote polysiloxanes to be copolymerized with polysilazane Reaction generates polysiloxanes-polysilazane copolymers；

Into the copolymer be added toluene after, add aluminium oxide, zinc oxide, boron nitride and tourmaline, with 1500 turns/ The speed of minute is stirred, and obtains coating head product；

The head product is ground so that aluminium oxide, zinc oxide, boron nitride and tourmaline the range of partial size be 0.22~0.52 micron, ceramic microsphere is added, obtains coating head product；And

By the coating composition in the surface of matrix, the coating with a thickness of 70 microns is formed, the coating piece is made.

Embodiment 8

Offer prepares raw material, and by mass percentage, it includes: polysilazane 6%, polysiloxanes 4%, second that this, which prepares raw material, Ether 25.5%, paraxylene 30%, white carbon black 10% that particle size range is 0.23~0.36 micron, particle size range be 0.23~ 0.36 micron of aluminium hydroxide 12%, the glass microsphere 2% that particle size range is 0.22~0.35 micron, particle size range is 0.23~ 0.34 micron of zirconium nitride 5%, the tourmaline 5% that particle size range is 0.23~0.34 micron, n,N-Dimethylaniline 0.5%, Wherein, the R of the polysilazane₁For olefine, R₂For aryl, R₃For hydrogen-based, the R of the polysiloxanes₄For alkane, R₅For alkane Hydrocarbon；

Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 500 revs/min of speed Alkane is added n,N-Dimethylaniline, is stirred with 1050 revs/min of speed, to promote polysiloxanes and polysilazane to send out Raw copolyreaction, generates polysiloxanes-polysilazane copolymers；

After ether, paraxylene is added into the copolymer, white carbon black, aluminium hydroxide, glass microsphere, nitridation are added Zirconium and tourmaline are stirred with 1700 revs/min of speed, obtain coating composition；And

By the coating composition in the surface of matrix, the coating with a thickness of 60 microns is formed, the coating piece is made.

Embodiment 9

Offer prepares raw material, by mass percentage, this prepare raw material include: polysilazane 30%, polysiloxanes 30%, Butyl oxide is 20%, and titanium nitride 9.5% that particle size range is 0.23~0.35 micron, particle size range are 0.24~0.37 micron Graphene 0.5%, rare talent's stone 2% that particle size range is 0.21~0.34 micron, the nitrogen that particle size range is 0.22~0.45 micron Change zirconium 1%, celestine 2%, triethylenediamine 5%, wherein the R of the polysilazane₁For hydrogen-based, R₂For hydrogen-based, R₃For hydrogen Base, the R of the polysiloxanes₄For hydrogen-based, R₅For olefine；

Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 600 revs/min of speed Alkane is added triethylenediamine, is stirred with 1500 revs/min of speed, to promote polysiloxanes and polysilazane to occur Copolyreaction generates polysiloxanes-polysilazane copolymers；

After butyl oxide is added into the copolymer, titanium nitride, graphene, Qi Caishi, zirconium nitride, celestine are added, It is stirred with 1000 revs/min of speed, obtains coating composition；And

By the coating composition in the surface of matrix, the coating with a thickness of 90 microns is formed, the coating piece is made.

Embodiment 10

Offer prepares raw material, by mass percentage, this prepare raw material include: polysilazane 40%, polysiloxanes 25%, Butyl oxide is 15%, the boron nitride 5% that particle size range is 0.2~0.4 micron, the titanium nitride that particle size range is 0.2~0.4 micron 5%, the tourmaline 5% that particle size range is 0.2~0.4 micron, triethylenediamine 5%, wherein the R of the polysilazane₁For Hydrogen-based, R₂For hydrogen-based, R₃For hydrogen-based, the R of the polysiloxanes₄For hydrogen-based, R₅For olefine；

Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 200 revs/min of speed Alkane is added triethylenediamine, is stirred with 1200 revs/min of speed, to promote polysiloxanes and polysilazane to occur Copolyreaction generates polysiloxanes-polysilazane copolymers；

After butyl oxide is added into the copolymer, boron nitride, titanium nitride and tourmaline are added, with 1200 revs/min Speed be stirred, obtain coating composition；And

By the coating composition in the surface of matrix, the coating with a thickness of 20 microns is formed, the coating piece is made.

Embodiment 11

Offer prepares raw material, by mass percentage, this prepare raw material include: polysilazane 50%, polysiloxanes 25%, Butyl oxide is 15%, the boron nitride 2% that particle size range is 0.2~0.3 micron, the titanium nitride that particle size range is 0.2~0.3 micron 2%, the tourmaline 1% that particle size range is 0.2~0.3 micron, triethylenediamine 5%, wherein the R of the polysilazane₁For Hydrogen-based, R₂For hydrogen-based, R₃For hydrogen-based, the R of the polysiloxanes₄For hydrogen-based, R₅For olefine；

Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 400 revs/min of speed Alkane is added triethylenediamine, is stirred with 1250 revs/min of speed, to promote polysiloxanes and polysilazane to occur Copolyreaction generates polysiloxanes-polysilazane copolymers；

After butyl oxide is added into the copolymer, boron nitride, titanium nitride and tourmaline are added, with 1300 revs/min Speed be stirred, obtain coating composition；And

By the coating composition in the surface of matrix, the coating with a thickness of 25 microns is formed, the coating piece is made.

Embodiment 12

Offer prepares raw material, by mass percentage, this prepare raw material include: polysilazane 50%, polysiloxanes 30%, Butyl oxide 10%, the silicon carbide 5% that particle size range is 0.2~0.4 micron, the boron nitride that particle size range is 0.2~0.3 micron 0.5%, the titanium nitride 0.5% that particle size range is 0.2~0.3 micron, the tourmaline 1% that particle size range is 0.2~0.3 micron, Triethylenediamine 3%, wherein the R of the polysilazane₁For hydrogen-based, R₂For hydrogen-based, R₃For hydrogen-based, the R of the polysiloxanes₄ For hydrogen-based, R₅For olefine；

After butyl oxide is added into the copolymer, silicon carbide, boron nitride, titanium nitride and tourmaline are added, with 1200 Rev/min speed be stirred, obtain coating composition；And

By the coating composition in the surface of matrix, the coating with a thickness of 40 microns is formed, the coating piece is made.

Embodiment 13

Offer prepares raw material, by mass percentage, this prepare raw material include: polysilazane 50%, polysiloxanes 20%, Butyl oxide 19%, the aluminium oxide 5% that particle size range is 0.3~0.5 micron, the boron nitride that particle size range is 0.2~0.3 micron 0.3%, the titanium nitride 0.3% that particle size range is 0.2~0.3 micron, the tourmaline that particle size range is 0.2~0.3 micron 0.4%, triethylenediamine 5%, wherein the R of the polysilazane₁For hydrogen-based, R₂For hydrogen-based, R₃For hydrogen-based, the poly- silicon oxygen The R of alkane₄For hydrogen-based, R₅For olefine；

Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 300 revs/min of speed Alkane is added triethylenediamine, is stirred with 1300 revs/min of speed, to promote polysiloxanes and polysilazane to occur Copolyreaction generates polysiloxanes-polysilazane copolymers；

After butyl oxide is added into the copolymer, aluminium oxide, boron nitride, titanium nitride and tourmaline are added, with 1800 Rev/min speed be stirred, obtain coating composition；And

By the coating composition in the surface of matrix, the coating with a thickness of 45 microns is formed, the coating piece is made.

Embodiment 14

Offer prepares raw material, by mass percentage, this prepare raw material include: polysilazane 50%, polysiloxanes 20%, Butyl oxide 10%, the silicon carbide 5% that particle size range is 2~4 microns, the boron nitride 2% that particle size range is 2~3 microns, partial size model Enclose the titanium nitride 3% for 2~3 microns, the zirconium nitride 2% that particle size range is 2~3 microns, the electricity that particle size range is 2~3 microns Gas stone 3%, stannous methide 5%, wherein the R of the polysilazane₁For hydrogen-based, R₂For hydrogen-based, R₃For hydrogen-based, the polysiloxanes R₄For hydrogen-based, R₅For olefine；

Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 100 revs/min of speed Alkane is added stannous methide, is stirred with 1100 revs/min of speed, to promote polysiloxanes to be copolymerized with polysilazane Reaction generates polysiloxanes-polysilazane copolymers；

After butyl oxide is added into the copolymer, silicon carbide, boron nitride, titanium nitride, zirconium nitride and tourmaline are added, It is stirred with 1100 revs/min of speed, obtains coating head product；

The head product is ground so that silicon carbide, boron nitride, titanium nitride, zirconium nitride and tourmaline partial size Range be 0.2~0.3 micron, obtain coating composition；And

By the coating composition in the surface of matrix, the coating with a thickness of 15 microns is formed, the coating piece is made.

Embodiment 15

Offer prepares raw material, by mass percentage, this prepare raw material include: polysilazane 20%, polysiloxanes 15%, Paraxylene 4%, the silicon carbide 50% that particle size range is 2~4 microns, the boron nitride 2% that particle size range is 2~3 microns, partial size The titanium nitride 3% that range is 2~3 microns, the zirconium nitride 2% that particle size range is 2~3 microns, particle size range are 2~3 microns Zirconium oxide 3%, triethylenediamine 1%, wherein the R of the polysilazane₁For hydrogen-based, R₂For hydrogen-based, R₃It is described poly- for hydrogen-based The R of siloxanes₄For hydrogen-based, R₅For olefine；

Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 500 revs/min of speed Alkane is added triethylenediamine, is stirred with 1550 revs/min of speed, to promote polysiloxanes and polysilazane to occur Copolyreaction generates polysiloxanes-polysilazane copolymers；

After paraxylene is added into the copolymer, silicon carbide, boron nitride, titanium nitride, zirconium nitride and oxidation are added Zirconium is stirred with 1900 revs/min of speed, obtains coating head product；

The head product is ground so that silicon carbide, boron nitride, titanium nitride, zirconium nitride and zirconium oxide partial size Range be 0.2~0.3 micron, obtain coating composition；And

By the coating composition in the surface of matrix, the coating with a thickness of 5 microns is formed, the coating piece is made.

Embodiment 16

Offer prepares raw material, by mass percentage, this prepare raw material include: polysilazane 25%, polysiloxanes 25%, Paraxylene 20%, the silicon carbide 20% that particle size range is 2~3 microns, the titanium nitride 3% that particle size range is 2~3 microns, grain The zirconium nitride 2% that diameter range is 2~3 microns, the zirconium oxide 3% that particle size range is 2~3 microns, particle size range are 2~3 microns Tourmaline 2%, wherein the R of the polysilazane₁For hydrogen-based, R₂For alkane, R₃For hydrogen-based, the R of the polysiloxanes₄For alkane Amido, R₅For olefine；

Polysilazane and polysiloxanes are placed in reactor, polysilazane and poly- silicon oxygen are mixed with 200 revs/min of speed Alkane is stirred with 1600 revs/min of speed, and polysiloxanes is copolymerized with polysilazane, and it is poly- to generate polysiloxanes- Silazane copolymer；

After paraxylene is added into the copolymer, silicon carbide, titanium nitride, zirconium nitride, zirconium oxide and electrical are added Stone is stirred with 1600 revs/min of speed, obtains coating head product；

The head product is ground so that silicon carbide, titanium nitride, zirconium nitride, zirconium oxide and tourmaline partial size Range be 0.2~0.26 micron, obtain coating composition；And

By the coating composition in the surface of matrix, the coating with a thickness of 10 microns is formed, the coating piece is made.

The hardness of the coating piece of embodiment 1-16, adhesion, temperature tolerance and far-infrared effect are tested, test knot Fruit please join table 1.

The physical property measurement result of 1 coating piece of table

	Hardness (H)	Attachment	Heatproof (weightless %)	Far-infrared effect
					Sample 1	8	0	2.36	8
Sample 2	9	0	1.33	8
					Sample 3	7	0	3.02	8
Sample 4	7	0	3.25	7
					Sample 5	7	0	2.91	8
Sample 6	7	0	3.63	9
					Sample 7	7	0	3.75	9
Sample 8	7	0	3.84	9
					Sample 9	8	0	1.87	9
Sample 10	9	0	1.49	10
					Sample 11	9	0	1.10	7
Sample 12	8	0	1.30	5
					Sample 13	9	0	1.18	5
Sample 14	9	0	1.04	9
					Sample 15	7	0	2.80	8
Sample 16	8	0	2.56	9

The hardness of the coating piece of embodiment 1-16 is tested according to GB/T 6739-1696 (hardness of film method of testing), The range for showing the hardness of coating piece is 7~9H, shows that the coating piece of embodiment 1-16 all has preferable hardness.

The adhesion of the coating piece of embodiment 1-16 is tested according to GB/T 9286 (adhesive force method of testing), is shown The hundred lattice attachment of coating piece can reach 0 grade, show that the adhesion of the coating piece of embodiment 1-16 is also preferable.

The weightlessness of the coating piece of embodiment 1-16 is tested according to GB/T 9286 (temperature tolerance test method), display is real The temperature tolerance for applying the coating piece of a 1-16 is also preferable.

The coating piece of embodiment 1-16 is made as to the inner cavity of micro-wave oven, toast slice is placed in the inner cavity and is carried out at heating Reason, time of the heat treatment is 2 minutes, observe it is heat-treated after toast slice coloring effect and upper Color uniformity sentence The far infrared performance of disconnected coating piece.Golden yellow is presented in the toast slice, and the colouring of toast slice is also more uniform, shows embodiment The far infrared performance of the coating piece of 1-16 is 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

1. a kind of coating composition, which is characterized in that the raw material for preparing of the coating composition includes polysilazane, polysiloxanes And far-infrared additive, the far-infrared additive are selected from least the one of boron nitride, titanium nitride, zirconium nitride, manganese dioxide and zirconium dioxide Kind or the far-infrared additive are at least one and tourmaline of boron nitride, titanium nitride, zirconium nitride, manganese dioxide and zirconium dioxide Mixture.

2. coating composition as described in claim 1, which is characterized in that the polysilazane accounts for the quality percentage for preparing raw material It is 6~81% than range, it is 4~79% that the polysiloxanes, which accounts for and prepares the mass percent range of raw material, the far-infrared additive Accounting for and preparing the mass percent range of raw material is 0.01~15%.

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 alkanamine Base, R₂For hydrogen-based, alkane, cycloalkane, olefine, aryl, alkoxy, alkyl siloxy or alkylamino radical, R₃For hydrogen-based, alkane, Cycloalkane, 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 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.

6. coating composition as described in any one in claim 1-5, which is characterized in that the raw material for preparing further includes solvent, The range that the solvent accounts for the mass percent for preparing raw material is 10~66%, and the solvent is selected from alkane solvents, ether At least one of class solvent, ketones solvent and benzenesulfonamide derivative species solvent.

7. coating composition as claimed in claim 6, 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.

8. coating composition as described in any one in claim 1-5, which is characterized in that the raw material for preparing further includes catalysis Agent, 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.

9. coating composition as claimed in claim 8, which is characterized in that the amines catalyst is selected from fatty amine, alicyclic One of amine, hydramine and aromatic amine are a variety of, the fatty amine in diethylamine, triethylamine and triethylene tetramine extremely Few one kind；The cycloaliphatic amines are selected from least one of triethylenediamine, piperazine, piperidines and morpholine；The hydramine is selected 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.

10. coating composition as claimed in claim 8, 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.

11. coating composition as described in any one in claim 1-5, which is characterized in that the raw material for preparing further includes filler, The filler account for the mass percent for preparing raw material range be 1~50%, the filler be selected from silicon carbide, aluminium oxide, Titanium oxide, zinc oxide, magnesia, aluminium hydroxide, white carbon black, concave convex rod, kaolin, bentonite, glass microsphere and ceramic microsphere At least one of.

12. coating composition as described in any one in claim 1-5, which is characterized in that it is described prepare raw material further include bear from Sub- agent, the range that the anion agent accounts for the mass percent for preparing raw material is 0.01~15%, the anion agent choosing It is Strange ice stone, tourmaline, egg from least one of Strange ice stone, tourmaline, opal and rare talent's stone or the anion agent At least one of Bai Shi and rare talent's stone, the mixture with rare-earth oxide and/or rare earth composite salt.

13. coating composition as claimed in claim 2, which is characterized in that the raw material for preparing further includes filler, solvent and urges Agent, the range that the filler accounts for the mass percent for preparing raw material is 1~50%, and the solvent, which accounts for, described prepares raw material Mass percent range be 10~66%, the catalyst account for the mass percent for preparing raw material range be 0.01 ~5%, the range that the polysiloxanes accounts for the mass percent for preparing raw material with polysilazane is 10~80%.

14. a kind of preparation method of coating composition, comprising the following steps:

Polysilazane, polysiloxanes and far-infrared additive are provided, the far-infrared additive is selected from boron nitride, titanium nitride, zirconium nitride, dioxy At least one or the far-infrared additive for changing manganese and zirconium dioxide are boron nitride, titanium nitride, zirconium nitride, manganese dioxide and two The mixture of at least one and tourmaline of zirconium oxide；

Mixing polysilazane and polysiloxanes, polysilazane and polysiloxanes are copolymerized, and generate the poly- silicon oxygen of polysilazane- Alkyl copolymer；

15. the preparation method of coating composition as claimed in claim 14, which is characterized in that mixing polysilazane and poly- silicon oxygen After alkane, before far-infrared additive is added into the polysilazane-polysiloxane copolymer, the preparation method of the coating composition is also Include: the step of catalyst is added into polysilazane and polysiloxanes, wherein the catalyst accounts for the matter for preparing raw material The range for measuring percentage is 0.01~5%, and the catalyst is amines catalyst and/or metal-based catalysts.

16. the preparation method of coating composition as claimed in claim 14, 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.

17. the preparation method of coating composition as claimed in claim 14, 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.

18. the preparation method of coating composition as claimed in claim 14, 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 anion agent is added in silicone copolymers, wherein the anion agent accounts for the mass percent for preparing raw material Range be 0.01~15%, the anion agent is selected from least one of Strange ice stone, tourmaline, opal and rare talent's stone, Or the anion agent is at least one of Strange ice stone, tourmaline, opal and rare talent's stone, with rare-earth oxide and/or The mixture of rare earth composite salt.

19. a kind of coating piece, which is characterized in that including matrix and the coating for being formed in described matrix surface, contain in the coating Just like the described in any item coating compositions of claim 1-13.

20. coating piece as claimed in claim 19, which is characterized in that the range of the thickness of the coating is 1 micron~100 micro- Rice.

21. a kind of preparation method of coating piece, comprising the following steps:

There is provided matrix and such as coating composition of any of claims 1-13；

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.