CN104212341A - Far infrared emission high-temperature-resistant kitchen and bath paint and preparation method thereof - Google Patents
Far infrared emission high-temperature-resistant kitchen and bath paint and preparation method thereof Download PDFInfo
- Publication number
- CN104212341A CN104212341A CN201410476380.6A CN201410476380A CN104212341A CN 104212341 A CN104212341 A CN 104212341A CN 201410476380 A CN201410476380 A CN 201410476380A CN 104212341 A CN104212341 A CN 104212341A
- Authority
- CN
- China
- Prior art keywords
- coating
- far infrared
- component
- water
- infrared transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention provides far infrared emission high-temperature-resistant kitchen and bath paint. The far infrared emission high-temperature-resistant kitchen and bath paint is characterized in that the raw materials comprise the following components: 15-30wt% of a component A, 20-30wt% of a component B, 0.5-1wt% of a flatting agent and the balance of a solvent, wherein the flatting agent and the solvent constitute a component C; the component A comprises methyl trialkoxy silane, tetraethyl orthosilicate and water; a molar ratio of the methyl trialkoxy silane to the tetraethyl orthosilicate is (1:1.5)-(1:0.25); the component B comprises reactive hydrophobic siloxane, silicon carbide nanoparticle and water, wherein the average particle size of the silicon carbide nanoparticle is 20-50nm. The coating has a heat-resistance temperature over 350 DEG C, can be used at a high temperature of 250 DEG C for a long time, has a static contact angle with the water of over 105 degrees, far infrared emissivity over 88% and good hydrophobic durability, is capable of satisfying common surface hydrophobic treatment requirements and capable of being applied to the fields such as kitchen and bath, buildings and industry.
Description
Technical field
The present invention relates to technical field of chemical products, specifically a kind of far infrared transmission thermostable transparent kitchen guarding coating and preparation method thereof.
Background technology
Hydrophobic coating has the anti-adhesion characteristic such as surface energy is low, frictional coefficient is little, easy slip, hydrophobic performance excellence due to it and enjoys the concern of investigator; Simultaneously coatingsurface not easily the feature that adheres to by other viscous substances or be easily removed after adhering, be widely used in the fields such as cooking apparatus coating, building surface coating, naval vessels antifouling coating.For the hydrophobic coating needing necessarily heat-resisting, solvent resistance, owing to using under 180 DEG C and above temperature for a long time, and by the erosion action of solvent etc. in use procedure, therefore must ensure that coating has the performance such as higher heat decomposition temperature and chemicals-resistant corrosion.
Hydrophobic coating is that a kind of surface energy of coating is lower than 25mJ/m
2or the speciality coating of large 90 ° of the contact angle of coating and liquid, coatingsurface has the features such as extremely low surface energy, less frictional coefficient and liquid easily slide on surface, thus show coatingsurface not easily adhere to by other viscous substances or be easily removed after adhering, be widely used in the fields such as small stores, transportation building and national defense and military.As the self-cleaning surface coating of non-stick pan coating layer, building, aircraft wing non-sticky metallic coating, the antifouling coating etc. of steamer.Current non-sticky metallic coating mainly contains low-surface-energy material as silicone resin coating, organic fluorine coating, and its filmogen is siloxanes and fluorocarbon material, material has extremely low surface energy, the contact angle of material surface and liquid is large, and roll angle is little, and dirt not easily adheres on surface.The chemical property of what simultaneously low-surface-energy material utilized is material, thus constructs more for convenience; Material with roughened surface the non-adhering surfaces of mimic biology microtexture and reach not sticky can, current research only rests on the construction of laboratory small area, for big area, on a large scale film and treatment process difficulty larger.
After polysiloxane coating is solidified by type siloxane monomer hydrolytic condensation, film forming obtains, coating curing temperatures is low, the Si-O key formed, bond energy is large, the sesquialter build Si-O-Si structure that curing cross-linked is formed has higher heat resisting temperature, good chemicals-resistant corrosive nature and good dimensional stability, is the good material preparing heat-resisting hydrophobic coating.But because siloxanes pendant group content own is few, hydrophobic performance is limited, and adds hydrophobic silicon oil ingredient in coating ingredients, and coating hydrophobicity makes moderate progress, but work-ing life is short.
Silicoorganic compound have inorganic Si-O-Si component and organic C-H component, therefore compound itself has excellent Inorganic-Organic Hybrid Material characteristic, in molecule, the bond distance of Si-O covalent linkage is 0.163nm, bond energy is 425kJ/mol, be greater than C-C (0.144nm in general organism, 345kJ/mol) and C-O (0.140nm, 351kJ/mol), there is the performances such as excellent high-low temperature resistant, weather-proof, resistance to chemical attack.Simultaneously because the pendant group be connected with main chain Si atom is generally the larger group of the spatial volume such as methyl, phenyl, to main chain, there is shielding effect, compound is made to have extremely low surface energy, thus tensio-active agent, reagent spreading agent etc. is used as, extensive in sector applications such as weaving, printing and dyeing, coating, electronic industry, agriculture productions.Because the shielding effect organosilicon reagent of pendant group to main chain has extremely low surface energy, be only second to fluorochemicals, have reduce that the surface tension ability of solvent system is strong, the alkaline remarkable advantage such as good of Heat-stable, Recent study more and more comes into one's own, and Application Areas also further expands simultaneously.Except the industries such as traditional textile dyeing and finishing, the even bubble of urethane, washing, organosilicon low surface energy reagent is divided the occasion such as loose, pottery is antifouling equally in buildings waterproof, paint flow and is also used widely.And at present in organosilicon low surface energy reagent, range of product is few, do not have that reaction active groups, product preparation process are complicated, high in cost of production shortcoming, be therefore necessary to develop more organic silicon surfactant new variety, to expand its range of application.
In order to improve the contact angle of polysiloxane coating and water and the adhesion property with base material, at present, one is add polydimethylsiloxane in coating composition, to improve hydrophobic components shielded side base-CH in coating composition
3content, but because the surface energy of polydimethylsiloxane own is low, lack the chemical site be combined with coating composition and base material, therefore be easy to be agglomerated into block, coatingsurface is moved to by intramolecule, with coating hydrophobic performance under raising coating short period of time and low temperature, but coating stability especially heat-resistant stable poor performance, work-ing life is short; In addition with sol-gel method or be progressively hydrolyzed sol-gel method, by controlled hydrolysis, condensation course, component structure is optimized, prepare the silicon coating of the micro-nano structure with " imitative lotus leaf " self-cleaning surface, strict owing to controlling component structure in preparation process, the structure of hydrophobic surface is fixed in the curing process, and therefore hydrophobicity and hydrophobic life-span are improved, but the adhesion property of coating and base material is poor, poor heat stability, the shortcomings such as coatings industryization preparation difficulty.Therefore in order to improve the hydrophobic life-span of the heat-resisting hydrophobic coating of polysiloxane, the present invention adopts table energy low, there is the β-heptamethyltrisiloxane base-ethyl trimethoxy silane of similar polydimethylsiloxane silicone oil hydrophobic functional group and reactive functional as modified component, to improve the hydrophobic performance of coating ingredients, generate Si-O-Si three-dimensional crosslinked network system by reactive functionality and methyltrimethoxy silane hydrolytic condensation, the polysiloxane preparing thermotolerance and hydrophobic performance excellence continues hydrophobic coating simultaneously.By β-heptamethyltrisiloxane base-ethyl trimethoxy silane, finishing is carried out to the silicon carbide with certain far-infrared transmitting function simultaneously, avoid silicon carbide undue agglomeration in coating preparation, far infrared transmission performance is caused to reduce, and the Si-O-Si three-dimensional crosslinked network compact structure owing to being formed after β-heptamethyltrisiloxane base-ethyl trimethoxy silane and oxyalkylsiloxane hydrolytic condensation, and there is certain far IR shielding effect and the function of transmitting, the far infrared quilt siloxane structure that silicon carbide is launched absorbs, and then launch far infrared outward, therefore with finishing after silicon carbide there is the collaborative far-infrared transmitting function strengthening coating, improve its effect, avoid far infrared rays that carbofrax material launches in coating composition by coating matrix absorbed, cause the problem that far infrared transmissivity is low.Adopt the method being progressively hydrolyzed copolycondensation, the siloxanes of differential responses activity is hydrolyzed, then carry out ultrasonic copolycondensation, the local excessive gel caking avoiding causing because of the difference of reactive behavior in siloxanes hydrolytic condensation process, and coating after the paint solidification caused is opaque.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of far infrared transmission thermostable transparent kitchen guarding coating and preparation method thereof is provided; Mainly solve nano silicon carbide powder to add in coating and be easy to reunite, and carbofrax material adds the problems such as far infrared transmission performance is too low, solves the persistence of high temperature resistant hydrophobic coating and the unification of sticking power simultaneously; Especially first finishing is carried out to silicon carbide so that hydrophobic active monomer can be reacted, formation has can react and the multi-functional component of hydrophobic far infrared transmission, progressively hydrolytic condensation is adopted to carry out coating preparation again, avoiding ordinary method adopts physical blending to add, silicon carbide undue agglomeration, and body material is to far-infrared absorption shielding silicon carbide performance, and hydrophobic components is easy to migration, and durable hydrophobic such as to differ from the problem; The field such as kitchen guarding's coating, high bake coating that is applied to has broad application prospects.
In order to achieve the above object, the invention provides a kind of far infrared transmission thermostable transparent kitchen guarding coating, it is characterized in that, its raw material comprises the solvent of component A 15 ~ 30wt%, B component 20 ~ 30wt%, flow agent 0.5 ~ 1wt% and surplus, and described flow agent and solvent form component C; Described component A comprises methyl trialkoxysilane, tetraethyl orthosilicate and water, and described methyl trialkoxysilane and the mol ratio of tetraethyl orthosilicate are 1: 1.5 ~ 1: 0.25, and the mol ratio of water and methyl trialkoxysilane is 1: 0.05 ~ 0.3; Described B component comprises can react hydrophobic silicone, nanometer silicon carbide particle and water, the median size of nanometer silicon carbide particle is 20 ~ 50nm, and the particle size range of particle is 10 ~ 60nm, the mass ratio that can react hydrophobic silicone and nanometer silicon carbide particle is 1: 0.03 ~ 0.1, and water is 1: 0.1 ~ 0.5 with the mol ratio can reacting hydrophobic silicone.
Preferably, the size distribution D90-D10 < 25nm of described nanometer silicon carbide particle.
Preferably, described water and the mol ratio of methyl trialkoxysilane are 1: 0.1.
Preferably, described methyl trialkoxysilane is at least one in methyltrimethoxy silane and Union carbide A-162.
Preferably, described reacted to hydrophobic silicone is β-seven methyl-monosilane base ethyltrialkoxysilanes.
Preferably, described solvent is the mixed solvent of alcohol or alcohol and water, wherein the mass ratio 1: 0.5 ~ 1: 2.5 of alcohol and water.
More preferably, described alcohol is at least one in ethanol and Virahol.
Present invention also offers the preparation method of above-mentioned far infrared transmission thermostable transparent kitchen guarding coating, it is characterized in that, comprising:
The first step: weigh each raw material in proportion, the methyl trialkoxysilane in component A, tetraethyl orthosilicate and water are mixed, adjust ph is 2.5 ~ 3.5, reacts 30 ~ 50min, obtain A performed polymer under normal temperature;
Second step: reacted to the hydrophobic silicone in B component, nanometer silicon carbide particle and water are mixed, adjust ph is 2.5 ~ 3.5, reacts 45 ~ 60min, obtains B performed polymer under 45 ~ 75 DEG C of conditions;
3rd step: by A performed polymer and the mixing of B performed polymer, carry out radiation copolycondensation under Ultrasonic Conditions, obtain coating precursor, add the flow agent in component C and solvent, filter, obtain far infrared transmission thermostable transparent kitchen guarding coating.
Preferably, in the described the first step and second step, adjust ph uses acid, and described acid is at least one in hydrochloric acid, sulfuric acid and formic acid.
Preferably, the Ultrasonic Conditions in described 3rd step is hyperacoustic frequency is 53Hz, and relative power is 60 ~ 80%, and the time of radiation copolycondensation is 60 ~ 90min.
Present invention also offers the using method of above-mentioned far infrared transmission thermostable transparent kitchen guarding coating, it is characterized in that, far infrared transmission thermostable transparent kitchen guarding coating is sprayed, at 180 DEG C of solidification 20 ~ 45min.
The present invention adopts the method for ultrasonic polycondensation, copolymeric siloxane process can be accelerated, simultaneously for the nanometer silicon carbide of finishing, also copolycondensation can be carried out while carrying out high efficiency dispersion, make to prepare coating sol particle less, coatingsurface is more fine and close, heat-resisting, hydrophobic and far infrared transmission performance is better.
The present invention adopts monomer to be progressively hydrolyzed to carry out condensation course again, the speed avoiding the reaction of differential responses reactive monomer is different, and the local transition condensation caused and form large size gel, and affect the transparency of coating, simultaneously progressively in hydrolytic process, finishing can be carried out to nano-powder, there is reactive behavior point simultaneously and be fixed in coating ingredients, dispersed after reaching the interpolation of nano-powder, improve its far infrared transmission performance.
Compared with prior art, positively effect of the present invention is:
Employing table of the present invention can be low and β-heptamethyltrisiloxane base-the ethyl trimethoxy silane with similar polydimethylsiloxane silicone oil hydrophobic functional group and reactive functional carries out finishing to nano-sized SiC powder, reduce silicon carbide energy, improve the dispersiveness of nano-powder, and carry out grafting on surface and there is reactive behavior and the functional group of hydrophobic performance, make function powder with the mode grafting of chemical reaction in the coating, improve dispersing property and stability, avoid nano silicon carbide powder to add in coating and be easy to reunite, generate Si-O-Si three-dimensional crosslinked network system by reactive functionality and methyltrimethoxy silane hydrolytic condensation simultaneously, the polysiloxane preparing thermotolerance and hydrophobic performance excellence continues hydrophobic coating, preparation coating continues hydrophobic performance excellence, avoid the migration of the low surface energy reagent added in component in prior art, and reduce the hydrophobic life-span, can have and know each other structure with main film forming substance methyltrimethoxy silane by reaction reagent, the hydrolytic activity of alkoxyl group is high, high with base material bonding force, therefore avoid the problem of the poor adhesive force of hydrophobic coating in prior art.And the similar Si-O-Si three-dimensional crosslinked network structure of siloxanes has far IR shielding effect and emission function, to the far infrared rays that carbofrax material is launched, there is transmission effect, avoid carbofrax material and add the problems such as far infrared transmission performance is too low, solve the persistence of high temperature resistant hydrophobic coating and the unification of sticking power simultaneously.Solving ordinary method adopts physical blending to add, silicon carbide undue agglomeration, and body material is to far-infrared absorption shielding silicon carbide performance, and hydrophobic components is easy to migration, the problems such as durable hydrophobic can differ from, coatings applications has broad application prospects in fields such as kitchen guarding, household, automobiles.
Especially siloxanyl monomers is adopted progressively to be hydrolyzed the method for carrying out copolycondensation again, adopt fixing coating composition hydrophobic functional group and the far-infrared transmitting function component of chemical reaction, to improve the durable hydrophobic energy after coating film forming and far-infrared transmitting function, after the coating prepared solidifies 20 ~ 45min under 180 DEG C of conditions, with the static contact angle > 105 ° of water, and the own heat resisting temperature > of coating 350 DEG C, far infrared transmissivity > 88%, has the higher transparency; Coating has higher heat resisting temperature, and has far infrared transmission performance simultaneously, should have in kitchen guarding's coating, can absorb far infrared rays fast, simultaneously emitting far-infrared, and toasts fast food, improves the mouthfeel of food; Simultaneously in kitchen guarding's coatings applications, can be emitting far-infrared fast, reduce the temperature of base material, the temperature of base material is played a protective role.
The particle diameter of nanometer silicon carbide particle is not easily too small, otherwise when adopting β-seven methyl-monosilane base ethyltrialkoxysilanes hydrolysis surface finish nano silicon carbide, reunite because hydrolysis temperature is too high and affect carbofrax material performance, simultaneously too low hydrolysis temperature and cause β-seven methyl-monosilane base ethyltrialkoxysilanes to be hydrolyzed being difficult to hydrolysis.
Adopt methyl trialkoxysilane and tetraethyl orthosilicate hydrolysis property polyfunctional group reaction system, be beneficial to the copolycondensation process of coating later stage of preparation.Alcohol soluble solvent has nontoxic characteristic, the coating of preparation and volatilization is fast, the feature that preparation cost is low.
Accompanying drawing explanation
Fig. 1 is the coating preparation flow schematic diagram of a kind of far infrared transmission thermostable transparent of the present invention kitchen guarding coating and preparation method thereof;
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Embodiment 1
A kind of far infrared transmission thermostable transparent kitchen guarding coating, its raw material is by the solvent composition of component A 15wt%, B component 30wt%, flow agent 0.5wt% and surplus, and described flow agent and solvent form component C; Described component A is made up of methyltrimethoxy silane, tetraethyl orthosilicate and water, and described methyltrimethoxy silane and the mol ratio of tetraethyl orthosilicate are 1: 1.5, and the mol ratio of water and methyltrimethoxy silane is 1: 0.05; Described B component is made up of β-seven methyl-monosilane base ethyltrialkoxysilanes, nanometer silicon carbide particle and water, the median size of nanometer silicon carbide particle is 20nm, particle size range is 10-45nm, and D90-D10 is 20m, the mass ratio of β-seven methyl-monosilane base ethyltrialkoxysilanes and nanometer silicon carbide particle is 1: 0.03, and the mol ratio of water and β-seven methyl-monosilane base ethyltrialkoxysilanes is 1: 0.1.
As shown in Figure 1, the preparation method of above-mentioned far infrared transmission thermostable transparent kitchen guarding coating is:
The first step: weigh each raw material in proportion, mixes the methyltrimethoxy silane in component A, tetraethyl orthosilicate and water, and the hydrochloric acid soln adjust ph adopting 1.0mol/L is 2.5, reacts 30min, obtain A performed polymer under normal temperature;
Second step: by β-seven methyl-monosilane base ethyltrialkoxysilanes, nanometer silicon carbide particle and the water mixing in B component, the salt acid for adjusting pH value adopting 1.0mol/L is 2.5, reacts 60min, obtain B performed polymer under 45 DEG C of conditions;
3rd step: by A performed polymer and the mixing of B performed polymer, radiation copolycondensation is carried out under Ultrasonic Conditions, described Ultrasonic Conditions is hyperacoustic frequency is 53Hz, relative power is 60%, and the time of radiation copolycondensation is 90min, obtains coating precursor, add the flow agent heptamethyltrisiloxane in component C and the solvent (mixed solvent of ethanol and water, and the mass ratio 1: 0.5 of ethanol and water), filter, obtain far infrared transmission thermostable transparent kitchen guarding coating.
During use, by far infrared transmission thermostable transparent kitchen guarding paint spay-coating in the aluminum alloy surface through 120 order sand polishings, at 180 DEG C of solidification 20min, test through adopting static video contact angle instrument, the static contact angle of the coating formed and water 107 °, and the far infrared transmissivity 91.5% adopting far infrared transmissivity instrument testing coating.Adopting GB GB/T 6739-1996 to test its pencil hardness is 7H, and adopting GB/T 9286-1998 to test its sticking power of coating is 1 grade, in thermogravimetic analysis (TGA); with nitrogen protection gas; oxygen is sweeping gas, and control flow gas is 20mL/min, carries out thermogravimetic analysis (TGA) with 15 DEG C/min; its initial decomposition temperature temperature is 496 DEG C; temperature when decomposing 5% quality is 535 DEG C, and coating is coated on standard aluminium sheet, after 350 DEG C of calcining 5h; surface color is constant, does not come off.
Embodiment 2
A kind of far infrared transmission thermostable transparent kitchen guarding coating, its raw material is by the solvent composition of component A 30wt%, B component 30wt%, flow agent 1wt% and surplus, and described flow agent and solvent form component C; Described component A is made up of Union carbide A-162, tetraethyl orthosilicate and water, and described Union carbide A-162 and the mol ratio of tetraethyl orthosilicate are 1: 0.25, and the mol ratio of water and Union carbide A-162 is 1: 0.3; Described B component is made up of β-seven methyl-monosilane base ethyltrialkoxysilanes, nanometer silicon carbide particle and water, the median size of nanometer silicon carbide particle is 50nm, particle size range is 45-60nm, and D90-D10 is 12nm, the mass ratio of β-seven methyl-monosilane base ethyltrialkoxysilanes and nanometer silicon carbide particle is 1: 0.1, and the mol ratio of water and β-seven methyl-monosilane base ethyltrialkoxysilanes is 1: 0.5.
As shown in Figure 1, the preparation method of above-mentioned far infrared transmission thermostable transparent kitchen guarding coating is:
The first step: weigh each raw material in proportion, mixes the Union carbide A-162 in component A, tetraethyl orthosilicate and water, and the sulphuric acid soln adjust ph adopting 1mol/L is 3.5, reacts 50min, obtain A performed polymer under normal temperature;
Second step: by β-seven methyl-monosilane base ethyltrialkoxysilanes, nanometer silicon carbide particle and the water mixing in B component, the sulphuric acid soln adjust ph adopting 1mol/L is 3.5, reacts 4min, obtain B performed polymer under 75 DEG C of conditions;
3rd step: by A performed polymer and the mixing of B performed polymer, radiation copolycondensation is carried out under Ultrasonic Conditions, described Ultrasonic Conditions is hyperacoustic frequency is 53Hz, relative power is 60%, and the time of radiation copolycondensation is 90min, obtains coating precursor, add the flow agent heptamethyltrisiloxane in component C and the solvent (mixed solvent of Virahol and water, and the mass ratio 1: 2.5 of alcohol and water), filter, obtain far infrared transmission thermostable transparent kitchen guarding coating.
During use, by far infrared transmission thermostable transparent kitchen guarding paint spay-coating in the aluminum alloy surface through 120 order sand polishings, at 180 DEG C of solidification 45min, test through adopting static video contact angle instrument, the static contact angle of the coating formed and water 110 °, and adopting far infrared transmissivity instrument, the far infrared transmissivity of coating is 88.5%.Adopting GB GB/T 6739-1996 to test its pencil hardness is 7H, and adopting GB/T 9286-1998 to test its sticking power of coating is 1 grade, in thermogravimetic analysis (TGA); with nitrogen protection gas; oxygen is sweeping gas, and control flow gas is 20mL/min, carries out thermogravimetic analysis (TGA) with 15 DEG C/min; its initial decomposition temperature temperature is 498 DEG C; temperature when decomposing 5% quality is 540 DEG C, and coating is coated on standard aluminium sheet, after 350 DEG C of calcining 5h; surface color is constant, does not come off.
Embodiment 3
A kind of far infrared transmission thermostable transparent kitchen guarding coating, its raw material is by the solvent composition of component A 20wt%, B component 25wt%, flow agent 0.5wt% and surplus, and described flow agent and solvent form component C; Described component A is made up of methyltrimethoxy silane, tetraethyl orthosilicate and water, and described methyltrimethoxy silane and the mol ratio of tetraethyl orthosilicate are 1: 1, and the mol ratio of water and methyltrimethoxy silane is 1: 0.1; Described B component is made up of β-seven methyl-monosilane base ethyltrialkoxysilanes, nanometer silicon carbide particle and water, the median size of nanometer silicon carbide particle is 30nm, particle size range is 15-45nm, and D90-D10 is 20nm, the mass ratio of β-seven methyl-monosilane base ethyltrialkoxysilanes and nanometer silicon carbide particle is 1: 0.05, and the mol ratio of water and β-seven methyl-monosilane base ethyltrialkoxysilanes is 1: 0.2.
As shown in Figure 1, the preparation method of above-mentioned far infrared transmission thermostable transparent kitchen guarding coating is:
The first step: weigh each raw material in proportion, mixes the methyltrimethoxy silane in component A, tetraethyl orthosilicate and water, and the formic acid solution adjust ph adopting 1mol/L is 2.5, reacts 50min, obtain A performed polymer under normal temperature;
Second step: by β-seven methyl-monosilane base ethyltrialkoxysilanes, nanometer silicon carbide particle and the water mixing in B component, the formic acid solution adjust ph adopting 1mol/L is 2.5, reacts 60min, obtain B performed polymer under 60 DEG C of conditions;
3rd step: by A performed polymer and the mixing of B performed polymer, radiation copolycondensation is carried out under Ultrasonic Conditions, described Ultrasonic Conditions is hyperacoustic frequency is 53Hz, relative power is 80%, and the time of radiation copolycondensation is 60min, obtains coating precursor, add the flow agent heptamethyltrisiloxane in component C and the solvent (mixed solvent of Virahol and water, and the mass ratio 1: 1.5 of alcohol and water), filter, obtain far infrared transmission thermostable transparent kitchen guarding coating.
During use, by far infrared transmission thermostable transparent kitchen guarding paint spay-coating in the aluminum alloy surface through 120 order sand polishings, at 180 DEG C of solidification 25min, the static contact angle of the coating formed and water 108 °, the far infrared transmissivity 90.5% of coating.Adopting GB GB/T 6739-1996 to test its pencil hardness is 7H, and adopting GB/T9286-1998 to test its sticking power of coating is 1 grade, in thermogravimetic analysis (TGA); with nitrogen protection gas; oxygen is sweeping gas, and control flow gas is 20mL/min, carries out thermogravimetic analysis (TGA) with 15 DEG C/min; its initial decomposition temperature temperature is 493 DEG C; temperature when decomposing 5% quality is 530 DEG C, and coating is coated on standard aluminium sheet, after 350 DEG C of calcining 5h; surface color is constant, does not come off.
Embodiment 4
A kind of far infrared transmission thermostable transparent kitchen guarding coating, its raw material is by the solvent composition of component A 30wt%, B component 20wt%, flow agent 1wt% and surplus, and described flow agent and solvent form component C; Described component A is made up of Union carbide A-162, tetraethyl orthosilicate and water, and described Union carbide A-162 and the mol ratio of tetraethyl orthosilicate are 1: 1, and the mol ratio of water and Union carbide A-162 is 1: 0.1; Described B component is made up of β-seven methyl-monosilane base ethyltrialkoxysilanes, nanometer silicon carbide particle and water, the median size of nanometer silicon carbide particle is 20nm, particle size range is 10-45nm, and D90-D10 is 20nm, the mass ratio of β-seven methyl-monosilane base ethyltrialkoxysilanes and nanometer silicon carbide particle is 1: 0.05, and the mol ratio of water and β-seven methyl-monosilane base ethyltrialkoxysilanes is 1: 0.2.
As shown in Figure 1, the preparation method of above-mentioned far infrared transmission thermostable transparent kitchen guarding coating is:
The first step: weigh each raw material in proportion, mixes the Union carbide A-162 in component A, tetraethyl orthosilicate and water, and the formic acid solution adjust ph adopting 1mol/L is 3.0, reacts 30min, obtain A performed polymer under normal temperature;
Second step: by β-seven methyl-monosilane base ethyltrialkoxysilanes, nanometer silicon carbide particle and the water mixing in B component, the formic acid solution adjust ph adopting 1mol/L is 3.0, reacts 60min, obtain B performed polymer under 45 DEG C of conditions;
3rd step: by A performed polymer and the mixing of B performed polymer, radiation copolycondensation is carried out under Ultrasonic Conditions, described Ultrasonic Conditions is hyperacoustic frequency is 53Hz, relative power is 80%, and the time of radiation copolycondensation is 60min, obtains coating precursor, add the flow agent heptamethyltrisiloxane in component C and the solvent (mixed solvent of Virahol and water, and the mass ratio 1: 1 of alcohol and water), filter, obtain far infrared transmission thermostable transparent kitchen guarding coating.
During use, by far infrared transmission thermostable transparent kitchen guarding paint spay-coating in the aluminum alloy surface through 120 order sand polishings, at 180 DEG C of solidification 30min, the static contact angle of the coating formed and water 107 °, the far infrared transmissivity of coating is 92.0%.Adopting GB GB/T 6739-1996 to test its pencil hardness is 7H, and adopting GB/T9286-1998 to test its sticking power of coating is 1 grade, in thermogravimetic analysis (TGA); with nitrogen protection gas; oxygen is sweeping gas, and control flow gas is 20mL/min, carries out thermogravimetic analysis (TGA) with 15 DEG C/min; its initial decomposition temperature temperature is 498 DEG C; temperature when decomposing 5% quality is 538 DEG C, and coating is coated on standard aluminium sheet, after 350 DEG C of calcining 5h; surface color is constant, does not come off.
Embodiment 5
A kind of far infrared transmission thermostable transparent kitchen guarding coating, its raw material is by the solvent composition of component A 20wt%, B component 20wt%, flow agent 0.5wt% and surplus, and described flow agent and solvent form component C; Described component A comprises methyltrimethoxy silane, tetraethyl orthosilicate and water, and described methyltrimethoxy silane and the mol ratio of tetraethyl orthosilicate are 1: 0.5, and the mol ratio of water and methyltrimethoxy silane is 1: 0.3; Described B component comprises β-seven methyl-monosilane base ethyltrialkoxysilanes, nanometer silicon carbide particle and water, the median size of nanometer silicon carbide particle is 45nm, particle size range is 20-50nm, D90-D10 is 25nm, the mass ratio of β-seven methyl-monosilane base ethyltrialkoxysilanes and nanometer silicon carbide particle is 1: 0.05, and the mol ratio of water and β-seven methyl-monosilane base ethyltrialkoxysilanes is 1: 0.2.
As shown in Figure 1, the preparation method of above-mentioned far infrared transmission thermostable transparent kitchen guarding coating is:
The first step: weigh each raw material in proportion, mixes the methyltrimethoxy silane in component A, tetraethyl orthosilicate and water, and the hydrochloric acid soln adjust ph adopting 1mol/L is 2.5, reacts 50min, obtain A performed polymer under normal temperature;
Second step: by β-seven methyl-monosilane base ethyltrialkoxysilanes, nanometer silicon carbide particle and the water mixing in B component, the hydrochloric acid soln adjust ph adopting 1mol/L is 2.5, reacts 45min, obtain B performed polymer under 55 DEG C of conditions;
3rd step: by A performed polymer and the mixing of B performed polymer, radiation copolycondensation is carried out under Ultrasonic Conditions, described Ultrasonic Conditions is hyperacoustic frequency is 53Hz, relative power is 60%, and the time of radiation copolycondensation is 90min, obtains coating precursor, add the flow agent heptamethyltrisiloxane in component C and the solvent (mixed solvent of ethanol and water, and the mass ratio 1: 1 of alcohol and water), filter, obtain far infrared transmission thermostable transparent kitchen guarding coating.
During use, by far infrared transmission thermostable transparent kitchen guarding paint spay-coating in the aluminum alloy surface through 120 order sand polishings, at 180 DEG C of solidification 30min, the coating formed and the static contact angle of water are 107 °, the far infrared transmissivity 90% of coating.Adopting GB GB/T 6739-1996 to test its pencil hardness is 7H, and adopting GB/T9286-1998 to test its sticking power of coating is 1 grade, in thermogravimetic analysis (TGA); with nitrogen protection gas; oxygen is sweeping gas, and control flow gas is 20mL/min, carries out thermogravimetic analysis (TGA) with 15 DEG C/min; its initial decomposition temperature temperature is 495 DEG C; temperature when decomposing 5% quality is 535 DEG C, and coating is coated on standard aluminium sheet, after 350 DEG C of calcining 5h; surface color is constant, does not come off.
Embodiment 6
A kind of far infrared transmission thermostable transparent kitchen guarding coating, its raw material is by the solvent composition of component A 30wt%, B component 30wt%, flow agent 1wt% and surplus, and described flow agent and solvent form component C; Described component A is made up of Union carbide A-162, tetraethyl orthosilicate and water, and described Union carbide A-162 and the mol ratio of tetraethyl orthosilicate are 1: 1.0, and the mol ratio of water and Union carbide A-162 is 1: 0.2; Described B component is made up of β-seven methyl-monosilane base ethyltrialkoxysilanes, nanometer silicon carbide particle and water, the median size of nanometer silicon carbide particle is 30nm, particle size range is 15-40nm, D90-D10 is 20nm, the mass ratio of β-seven methyl-monosilane base ethyltrialkoxysilanes and nanometer silicon carbide particle is 1: 0.05, and the mol ratio of water and β-seven methyl-monosilane base ethyltrialkoxysilanes is 1: 0.2.
As shown in Figure 1, the preparation method of above-mentioned far infrared transmission thermostable transparent kitchen guarding coating is:
The first step: weigh each raw material in proportion, mixes the Union carbide A-162 in component A, tetraethyl orthosilicate and water, and the formic acid solution adjust ph adopting 1mol/L is 3.0, reacts 45min under normal temperature,
Obtain A performed polymer;
Second step: by β-seven methyl-monosilane base ethyltrialkoxysilanes, nanometer silicon carbide particle and the water mixing in B component, the formic acid solution adjust ph adopting 1mol/L is 3.0, reacts 45min, obtain B performed polymer under 60 DEG C of conditions;
3rd step: by A performed polymer and the mixing of B performed polymer, radiation copolycondensation is carried out under Ultrasonic Conditions, described Ultrasonic Conditions is hyperacoustic frequency is 53Hz, relative power is 75%, and the time of radiation copolycondensation is 90min, obtains coating precursor, add the flow agent heptamethyltrisiloxane in component C and the solvent (mixed solvent of Virahol and water, and the mass ratio 1: 2.0 of alcohol and water), filter, obtain far infrared transmission thermostable transparent kitchen guarding coating.
During use, by far infrared transmission thermostable transparent kitchen guarding paint spay-coating in the aluminum alloy surface through 120 order sand polishings, at 180 DEG C of solidification 45min, the static contact angle of the coating formed and water 112 °, the far infrared transmissivity 91% of coating.Adopting GB GB/T 6739-1996 to test its pencil hardness is 7H, and adopting GB/T9286-1998 to test its sticking power of coating is 1 grade, in thermogravimetic analysis (TGA); with nitrogen protection gas; oxygen is sweeping gas, and control flow gas is 20mL/min, carries out thermogravimetic analysis (TGA) with 15 DEG C/min; its initial decomposition temperature temperature is 498 DEG C; temperature when decomposing 5% quality is 540 DEG C, and coating is coated on standard aluminium sheet, after 350 DEG C of calcining 5h; surface color is constant, does not come off.
Claims (10)
1. a far infrared transmission thermostable transparent kitchen guarding coating, is characterized in that, its raw material comprises the solvent of component A 15 ~ 30wt%, B component 20 ~ 30wt%, flow agent 0.5 ~ 1wt% and surplus, and described flow agent and solvent form component C; Described component A comprises methyl trialkoxysilane, tetraethyl orthosilicate and water, and described methyl trialkoxysilane and the mol ratio of tetraethyl orthosilicate are 1: 1.5 ~ 1: 0.25, and the mol ratio of water and methyl trialkoxysilane is 1: 0.05 ~ 0.3; Described B component comprises can react hydrophobic silicone, nanometer silicon carbide particle and water, the median size of nanometer silicon carbide particle is 20 ~ 50nm, and the particle size range of particle is 10 ~ 60nm, the mass ratio that can react hydrophobic silicone and nanometer silicon carbide particle is 1: 0.03 ~ 0.1, and water is 1: 0.1 ~ 0.5 with the mol ratio can reacting hydrophobic silicone.
2. far infrared transmission thermostable transparent kitchen guarding coating as claimed in claim 1, is characterized in that, the size distribution D90-D10 < 25nm of described nanometer silicon carbide particle.
3. far infrared transmission thermostable transparent kitchen guarding coating as claimed in claim 1, is characterized in that, described methyl trialkoxysilane is at least one in methyltrimethoxy silane and Union carbide A-162.
4. far infrared transmission thermostable transparent kitchen guarding coating as claimed in claim 1, it is characterized in that, described reacted to hydrophobic silicone is β-seven methyl-monosilane base ethyltrialkoxysilanes.
5. far infrared transmission thermostable transparent kitchen guarding coating as claimed in claim 1, it is characterized in that, described solvent is the mixed solvent of alcohol or alcohol and water, wherein the mass ratio 1: 0.5 ~ 1: 2.5 of alcohol and water.
6. far infrared transmission thermostable transparent kitchen guarding coating as claimed in claim 5, is characterized in that, described alcohol is at least one in ethanol and Virahol.
7. the preparation method of the far infrared transmission thermostable transparent kitchen guarding coating according to any one of claim 1-6, is characterized in that, comprising:
The first step: weigh each raw material in proportion, the methyl trialkoxysilane in component A, tetraethyl orthosilicate and water are mixed, adjust ph is 2.5 ~ 3.5, reacts 30 ~ 50min, obtain A performed polymer under normal temperature;
Second step: reacted to the hydrophobic silicone in B component, nanometer silicon carbide particle and water are mixed, adjust ph is 2.5 ~ 3.5, reacts 45 ~ 60min, obtains B performed polymer under 45 ~ 75 DEG C of conditions;
3rd step: by A performed polymer and the mixing of B performed polymer, carry out radiation copolycondensation under Ultrasonic Conditions, obtain coating precursor, add the flow agent in component C and solvent, filter, obtain far infrared transmission thermostable transparent kitchen guarding coating.
8. the preparation method of far infrared transmission thermostable transparent kitchen guarding coating as claimed in claim 7, is characterized in that, in the described the first step and second step, adjust ph uses acid, and described acid is at least one in hydrochloric acid, sulfuric acid and formic acid.
9. the preparation method of far infrared transmission thermostable transparent kitchen guarding coating as claimed in claim 7, it is characterized in that, Ultrasonic Conditions in described 3rd step is hyperacoustic frequency is 53Hz, and relative power is 60 ~ 80%, and the time of radiation copolycondensation is 60 ~ 90min.
10. the preparation method of the far infrared transmission thermostable transparent kitchen guarding coating according to any one of claim 1-6, is characterized in that, is sprayed by far infrared transmission thermostable transparent kitchen guarding coating, at 180 DEG C of solidification 20 ~ 45min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410476380.6A CN104212341B (en) | 2014-09-18 | 2014-09-18 | Far infrared emission high-temperature-resistant kitchen and bath paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410476380.6A CN104212341B (en) | 2014-09-18 | 2014-09-18 | Far infrared emission high-temperature-resistant kitchen and bath paint and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104212341A true CN104212341A (en) | 2014-12-17 |
| CN104212341B CN104212341B (en) | 2017-01-18 |
Family
ID=52094262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410476380.6A Expired - Fee Related CN104212341B (en) | 2014-09-18 | 2014-09-18 | Far infrared emission high-temperature-resistant kitchen and bath paint and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104212341B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112645712A (en) * | 2020-12-24 | 2021-04-13 | 西安鑫垚陶瓷复合材料有限公司 | Hydrophobic ceramic powder, carbon-ceramic composite material surface protective coating and preparation method thereof |
| CN113025083A (en) * | 2019-12-24 | 2021-06-25 | 九阳股份有限公司 | High-temperature-resistant transparent non-stick coating, method for forming high-temperature-resistant transparent non-stick coating on surface of substrate and cup body with coating |
| CN115820112A (en) * | 2022-12-01 | 2023-03-21 | 广东美的白色家电技术创新中心有限公司 | Coating composition and preparation method and application thereof |
| CN116004116A (en) * | 2022-12-27 | 2023-04-25 | 武汉苏泊尔炊具有限公司 | Modified ceramic coating, composite coating, preparation method of modified ceramic coating and cooker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1338482A (en) * | 2001-09-10 | 2002-03-06 | 何长杰 | Infrared barrier for high-molecular polymer |
| CN101429355A (en) * | 2007-11-08 | 2009-05-13 | 深圳大学 | Process for preparing nano-organosilicon composite coating |
| CN101987941A (en) * | 2009-08-03 | 2011-03-23 | 深圳大学 | Method for preparing nanometer hardened organic silicon coating |
| CN102173667A (en) * | 2011-01-25 | 2011-09-07 | 常州工程职业技术学院 | Non-intumescent fireproofing coating and preparation method thereof |
| CN102417356A (en) * | 2010-09-27 | 2012-04-18 | 中国科学院理化技术研究所 | Nanometer silicon carbide-series infrared radiation coating and preparation method thereof |
-
2014
- 2014-09-18 CN CN201410476380.6A patent/CN104212341B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1338482A (en) * | 2001-09-10 | 2002-03-06 | 何长杰 | Infrared barrier for high-molecular polymer |
| CN101429355A (en) * | 2007-11-08 | 2009-05-13 | 深圳大学 | Process for preparing nano-organosilicon composite coating |
| CN101987941A (en) * | 2009-08-03 | 2011-03-23 | 深圳大学 | Method for preparing nanometer hardened organic silicon coating |
| CN102417356A (en) * | 2010-09-27 | 2012-04-18 | 中国科学院理化技术研究所 | Nanometer silicon carbide-series infrared radiation coating and preparation method thereof |
| CN102173667A (en) * | 2011-01-25 | 2011-09-07 | 常州工程职业技术学院 | Non-intumescent fireproofing coating and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113025083A (en) * | 2019-12-24 | 2021-06-25 | 九阳股份有限公司 | High-temperature-resistant transparent non-stick coating, method for forming high-temperature-resistant transparent non-stick coating on surface of substrate and cup body with coating |
| CN112645712A (en) * | 2020-12-24 | 2021-04-13 | 西安鑫垚陶瓷复合材料有限公司 | Hydrophobic ceramic powder, carbon-ceramic composite material surface protective coating and preparation method thereof |
| CN115820112A (en) * | 2022-12-01 | 2023-03-21 | 广东美的白色家电技术创新中心有限公司 | Coating composition and preparation method and application thereof |
| CN115820112B (en) * | 2022-12-01 | 2023-09-19 | 广东美的白色家电技术创新中心有限公司 | Coating composition and preparation method and application thereof |
| CN116004116A (en) * | 2022-12-27 | 2023-04-25 | 武汉苏泊尔炊具有限公司 | Modified ceramic coating, composite coating, preparation method of modified ceramic coating and cooker |
| CN116004116B (en) * | 2022-12-27 | 2024-02-06 | 武汉苏泊尔炊具有限公司 | Modified ceramic coating, composite coating, preparation method of modified ceramic coating and cooker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104212341B (en) | 2017-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103849092B (en) | Composite material micropowder, method for forming same, ceramic coating, and protective coating | |
| CN103820021B (en) | A kind of non-stick ceramic coating and preparation method thereof | |
| US7879449B2 (en) | Non-stick ceramic coating composition and process | |
| EP1835002B1 (en) | Non-stick ceramic coating composition and process | |
| Jia et al. | Texturing commercial epoxy with hierarchical and porous structure for robust superhydrophobic coatings | |
| CN103421423A (en) | Method for preparing high-temperature-resistant super-hydrophobic coating in situ | |
| US7211329B2 (en) | Process for making a product with a long-lasting easily cleaned surface and product thereof | |
| CN104212341A (en) | Far infrared emission high-temperature-resistant kitchen and bath paint and preparation method thereof | |
| CN102911584B (en) | A kind of anti-doodling and anti-affixing nano paint and preparation method thereof | |
| CN105612165A (en) | Fluoroalkylsilanes and coatings therefrom | |
| US20140186639A1 (en) | Non-stick ceramic coating composition and process | |
| CN103205201A (en) | Non-stick ceramic paint and coating method thereof | |
| CN106118422B (en) | Nano-meter SiO_22Compound polysiloxane-modified aqueous terpenyl EP/PU super-hydrophobic automatic cleaning polymer and preparation method thereof | |
| CN104109439A (en) | Heat preserving really stone paint and preparation method thereof | |
| CN105874021B (en) | It is provided with the cook utensil of mixed coating and the method for producing this apparatus | |
| CN105531337A (en) | Poly fluorine-containing siloxane coatings | |
| CN104371540B (en) | A kind of gradient composite structure transparent hydrophobic coating and preparation method thereof | |
| CN103254784A (en) | Formula based on modified hydrophobic SiO2 (silicon dioxide) self-cleaning paint and preparation method thereof | |
| CN101555385B (en) | Water-reducible silicone coating and preparation method thereof | |
| CN110240855A (en) | A kind of porous superslide ice-phobic coating and preparation method | |
| CN104231918B (en) | The quick-dry type oiliness infiltration nano combined protective agent of film-forming type and preparation method and application | |
| CN101343428A (en) | Porcelain film composition based on siloxane and preparation method thereof | |
| CN102732151A (en) | Oil-repellent coating material composition | |
| CN108727978A (en) | A kind of composite, insulating environmental protection coating material | |
| US7993707B2 (en) | Production of coated substrates |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20190918 |