CN105038336B - A kind of inorganic nano paint and its preparation and application for being coated on substrate surface - Google Patents
A kind of inorganic nano paint and its preparation and application for being coated on substrate surface Download PDFInfo
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- CN105038336B CN105038336B CN201510404120.2A CN201510404120A CN105038336B CN 105038336 B CN105038336 B CN 105038336B CN 201510404120 A CN201510404120 A CN 201510404120A CN 105038336 B CN105038336 B CN 105038336B
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Abstract
A kind of inorganic nano paint for being coated on substrate surface and its preparation and use, the inorganic nano paint is by inorganic nano SiO2Colloidal sol as film forming agent inorganic nano paint；The inorganic nano SiO2The content of organic high molecular compound is less than 0.5% in colloidal sol, and metal ion content is less than 80PPM.The present invention proposes a kind of inorganic nano paint for being coated on substrate surface and can forming wear-resistant coating, metal ion is not contained, it is the coating of full saturated structures after coating drying, is not corroded by electrophilic dose or oxidant, forming one layer in substrate surface has the extremely strong inorganic coating of antiacid alkali etch resistant properties.The present invention also proposes a kind of preparation and application of above-mentioned inorganic nano paint, prepares simple, is coated on substrate surface, with improve the case hardness of base material, abrasion resistance and it is ageing-resistant the characteristics of, extend the service life of base material.
Description
Technical field
The present invention relates to inorganic coating technical field, more particularly to a kind of inorganic nano paint for being coated on substrate surface and
Its preparation and application.
Background technology
Bathroom metal product generally obtains decorative surface using galvanoplastic, and the high pollution of manufacturing process cost is big, and finished product contains
Harmful heavy metal ions, environment-friendly type is poor；High-quality electroplated product is with high costs；Decorative effect is single metallic luster, single weary
Taste.
Existing patent CN104611688A-a kind of aluminum passivation agent and preparation method thereof, is related to a kind of use with aqueous silicon
Organosol polymeric, to reach preferable filming performance, with the addition of a large amount of caustic acids, alkalescence and poison as the technology of filmogen
Property inorganic additive, the preparation method of patent CN104591674A-aqueous inorganic marine glue, waterproof coating and marine glue, use
Basic anhydride K2O is film forming modifiers, and with substantially similar film forming mechanism and mode, contrast patent CN104611688A has
Larger improvement, it is less to employ high pollution modifying agent, but film forming agent belongs to KP1, and it is congenital to there is water resistance and chemistry
Stability problem.Patent CN104557136A-a kind of hilllock stone crystal face agent and preparation method thereof, describes one kind and uses the hydrosol
It is the existing distribution type SiO2 coating productions of raw material, belongs to the class waterglass film of alkaline silica sol (Ludox) catalytic curing,
Also need to be processed by shot blasting to can be only achieved aesthetic after the completion of its construction in addition, be not suitable for sanitaryware application；
A kind of patent CN104513575A-preparation method of acrylic acid series anticorrosive paint, organic resin (it is a kind of it is common into
Membrane substance) and the Ludox method for preparing corrosion-inhibiting coating, the technology is to represent to be related to silica-sol wash organic coating technology at present
Technical scheme, wherein main film forming agent is the organic resin based on acrylic resin, Ludox is used as reinforcing agent, its property
Closer to organic coating, simultaneous with the basic defect of common organic coating：Aging, hardness is small easy to wear, and application process has
Unwanted volatile (VOC) etc..
The content of the invention
It is an object of the invention to propose a kind of inorganic nano paint for being coated on substrate surface and wear-resistant coating being formed,
Metal ion is not contained, is the coating of full saturated structures after coating drying, do not corroded by electrophilic dose or oxidant, in substrate surface
Forming one layer has the extremely strong inorganic coating of antiacid alkali etch resistant properties.
It is simple to operate it is another object of the present invention to propose a kind of preparation method of above-mentioned inorganic nano paint, make
Coating structure is more stable, extends the life-span of coating.
It is an object of the invention to propose a kind of application method of above-mentioned inorganic nano paint, substrate surface is coated on, had
Be improved the case hardness of base material, abrasion resistance and it is ageing-resistant the characteristics of, extend the service life of base material.
It is that, up to this purpose, the present invention uses following technical scheme：
A kind of inorganic nano paint for being coated on substrate surface and can forming wear-resistant coating, the inorganic nano paint includes
With inorganic nano SiO2Colloidal sol is the film forming agent of principal component；
The content of organic high molecular compound is less than 0.5% in the film forming agent, and metal ion content is less than 80PPM.
Illustrate further, during the base material is metal, natural or artificial stone, ceramics, glass, high-molecular organic material
Any one or more is combined.
Illustrate further, the raw material of the inorganic nano paint includes following components：30-95% film forming agents, 0-65%
Filler and 0.05-8% regulators.
Illustrate further, the regulator includes dispersion stabilizer, levelling agent and evaporation rate conditioning agent.
Illustrate further, the evaporation rate conditioning agent is alcohols, phenols, amine, amide-type or fluorochemical
It is at least one.
Illustrate further, the film forming agent is made up of nanosized SiO_2, colloid chemistry stabilizer and alcohol solvent.
Illustrate further, the colloid chemistry stabilizer is with the alkali of volatilization attribute when heating or containing only small molecule
Measure the salt of organic acid；The central atom of the alkali or salt is nitrogen, phosphorus, oxygen, sulphur, titanium or bromine.
The above-mentioned preparation method for being coated on substrate surface and extending the inorganic nano paint of its service life, including following step
Suddenly：
(1) by inorganic filler with appropriate proportioning with and the compatible solvent of film forming agent, i.e. carbon number is no more than 5 monohydric alcohol
And ultra-fine 0.5~48h of ball milling after the mixing of dispersant, sagging inhibitor, obtain inorganic filler slurry；
(2) inorganic filler slurry, film forming agent, evaporation rate regulator and the levelling agent that will be obtained through step (1) are mixed by proportioning
Be put in after conjunction in high shear mixers or ball mill or the blade stirrer equipment with ultrasonic vibration function mix 10min~
72h；
(3) slurry that will be obtained through step (2) is filtered by more than or equal to 200 mesh standard sieves, and filtrate is inorganic nano
Coating.
A kind of above-mentioned application method for being coated on substrate surface and the inorganic nano paint of wear-resistant coating being formed, including with
Lower step：
A, coating preparation：Film forming agent, filler and regulator are carried out into mixing and ball milling by proportioning and prepares inorganic nano painting
Material；
B, coating：Inorganic nano paint is coated on substrate surface；
C, drying：Step B is coated with the sanitary equipment drying of inorganic nano paint, the product with inorganic coating is obtained.
Illustrate further, the heating curves dried in step C is：40~50 DEG C of 10~20min of insulation；It is warming up to 70~
85 DEG C, it is incubated 10~15min；115~130 DEG C are warming up to, 15~30min is incubated；It is warming up to 180~250 DEG C, insulation 10~
60min, cools to the furnace and is taken out close to after room temperature.
Beneficial effects of the present invention：1st, film forming matter is full-inorganic material in coating, without organic resin constituent, chemical property
Stabilization not aging, high temperature resistant, acid and alkali-resistance salt corrosion；Film forming is tough and tensile, and wearability is good, sturdy and durable；2nd, with anti-soil, oil resistant, anti-
The superperformance of water, reduces the cleaning difficulty of substrate surface, improves its cleaning；3rd, small molecule is contained with effumability alkali or only
The salt used as stabilizers of organic acid is measured, instead of alkali as stabilizer, stablizing effect is good, easily removes noresidue；4th, coating makes
It is simple with method, the coating structure of stabilization is advantageously formed, extend the service life of base material.
Brief description of the drawings
Fig. 1 is the surface X-ray diffraction pattern of one embodiment of the present of invention.
Specific embodiment
Technical scheme is further illustrated by specific embodiment below in conjunction with the accompanying drawings.
A kind of inorganic nano paint for being coated on substrate surface and can forming wear-resistant coating, the inorganic nano paint includes
With inorganic nano SiO2Colloidal sol is the film forming agent of principal component；
The content of organic high molecular compound is less than 0.5% in the film forming agent, and metal ion content is less than 80PPM.
In order to the surface structure to existing product is protected, a coating can be sprayed in substrate surface more resistance to strengthen its
Mill and decay resistance, existing coating is generally organic coating, but the anti-wear performance of organic coating is poor, during use easily because
Rub, scrape damage and come off, lose defencive function, it is therefore desirable to which providing one kind can form that barrier propterty is good, the painting of long service life
The coating of layer.In view of above demand, inorganic coating is necessarily applied, but in the prior art using in inorganic coating also containing big
Amount organic high molecular compound, these compounds can improve the coating property of coating, but it still retains under high-temperature baking,
Eventually become the material in coating.These organic high molecular compounds can make strength of coating step-down, it is impossible to form high-strength abrasion-proof
Inorganic coating.
The present invention program is just directed to problem above, it is proposed that a kind of to be coated on substrate surface and form wear-resistant coating
Inorganic nano paint, inorganic nano paint be by inorganic nano SiO2 colloidal sols as film forming agent inorganic nano paint, it can be
Substrate surface coating curing forms high intensity and wear-resisting inorganic coating, and organic high molecular compound contains in film forming agent
Amount is less than 0.5%, and metal ion content is less than 80PPM.The inorganic coating for so being formed is mainly by inorganic nano silica
Composition, and wherein organic high molecular compound content is extremely low, influences small to strength of coating, using inorganic nano silica
The characteristic such as high intensity, wear-resisting makes coating have high intensity and wear-resisting characteristic.
Illustrate further, the raw material of the inorganic nano paint includes following components：30-95% film forming agents, 0-65%
Filler and 0.05-8% regulators.By inorganic nano SiO2 colloidal sols as the film forming agent of main film forming component in the presence of regulator
Being coated on five gold surfaces has good levelability, and in the absence of sealing of hole problem, the smooth film forming of coating is in five gold surfaces.Film forming matter is complete
Inorganic material, without organic resin constituent, stable chemical nature is not aging, high temperature resistant, acid and alkali-resistance salt corrosion；Film forming is tough and tensile, resistance to
Mill property is good, sturdy and durable.
Illustrate further, during the base material is metal, natural or artificial stone, ceramics, glass, high-molecular organic material
Any one or more is combined.
Illustrate further, the regulator includes dispersion stabilizer, levelling agent and evaporation rate conditioning agent.
Wherein in regulator, evaporation rate conditioning agent accounts for the total component 35%-85% of regulator, and levelling agent accounts for 1-20%, point
Dispersion stabilizer accounts for 10%-55%, the dispersant containing 10-35%, balance of sagging inhibitor wherein in dispersion stabilizer.Wherein, divide
Dispersion stabilizer is conventional dispersion stabilizer of the inorganic filler in alcohol system, i.e. one end for that can pass through quiet with inorganic powder surface
Organo-functional group or powered inorganic group that electro ultrafiltration, hydrogen bond action, chemical bond or Van der Waals force are combined, the other end contain 2~10
The organic linear or multiple-OH of individual carbon atom ,-COOH, amido, amide groups, the small molecule organic compound of ether (- O-)；Levelling
Agent be medium molecule weight polymers or these compounds containing polysiloxane group (straight or branched) group, fluorocarbons or this
Class compound is through the modified product of polyether polyester；Sagging inhibitor does the modified viscous of thickener including being commonly used in various coating industries
Soil, white carbon, modified starch, modified cellulose and cellulose derivative, preferably thing are then fume colloidal silica.The evaporation speed
Degree conditioning agent is alcohols, phenols, amine, amide-type or fluorochemical.
Illustrate further, the evaporation rate conditioning agent is alcohols, phenols, amine, amide-type or fluorochemical
It is at least one.Evaporation rate regulator is containing easily forming hydrogen bond and (alkali, organic not with virgin rubber active material and stabilizer
Salt etc.) reaction low molecular weight organic compound, including alcohols, phenols, amine, amide-type or fluorochemical.
Illustrate further, the film forming agent is made up of nanosized SiO_2, colloid chemistry stabilizer and alcohol solvent.
Using nano silicon as the main component of film layer, solvent can select water or alcohols solvent to nano silicon
Carry out dissolving and obtain inorganic nano colloidal sol, the mixture of one or more in the alcohols such as ethanol or propyl alcohol of alcohols solvent,
Good dissolution is played, burns till volatile during solidification, do not residued in inorganic coating, it is preferably molten from harmless alcohol
Agent, the inorganic nano paint of formation do not construct before for water white transparency, the liquid of band slight milky white gloss is before active ingredient film forming
Nanostructured colloid, stable chemical nature is easy to maintain, and configuration is easy, is easily used.Film forming matter is full-inorganic material, is not contained
Machine resinous principle, stable chemical nature is not aging, high temperature resistant, acid and alkali-resistance salt corrosion.Coating is full saturated structures after burning till solidification,
With anti-soil, oil resistant, the superperformance of water resistant, the cleaning difficulty of hardware sanitary equipment is reduced, improve its cleaning, and film forming is tough and tensile,
Wearability is good, sturdy and durable, and coating is not allowed destructible or come off during by external impacts.
Illustrate further, the colloid chemistry stabilizer is with the alkali of volatilization attribute when heating or containing only small molecule
Measure the salt of organic acid；The central atom of the alkali or salt is nitrogen, phosphorus, oxygen, sulphur, titanium or bromine.
Illustrate further, the evaporation rate conditioning agent is alcohols, phenols, amine, amide-type or fluorochemical
It is at least one.
Any metal cation component is free of in film forming agent composition, instead of alkali as colloid chemistry stabilizer, stablizing effect is good,
Easily removing noresidue, retains the activity of chemically active ≡ Si-OH or ≡ Si-O- high in virgin rubber to greatest extent, and the principle of solidification is then
It is the controllability volatilization for coordinating stabilizer in drying process, high activity Si-OH or the Si-O- group being sustained out gradually passes through following
Gradually solidification obtains the tough and tensile film with amorphous SiO2 as main component for reaction.
≡Si-OH+HO-Si≡→≡Si-O-Si≡+H2O↑
Additionally, nearly all inorganic particle composition is all containing-Me-OH (Me is metallic element or nonmetalloid), these
Powder can be formed by above-mentioned mechanism and film forming matter and firmly combined, therefore application scalability of the invention is splendid, Ke Yitian
Plus various inorganic fillers or through hydroxylating, carboxylated treatment organic filler (molding powder), obtain the anti-ceramics of various decorative effects
Coating.
The inorganic nano paint is coated on substrate surface by the way of dip-coating or showering or coating.The coating method
Including atomization coating or electrostatic coating mode.Wherein, electrostatic coating mode is more suitable for hardware of the coating with irregular shape
Sanitary equipment, surface coating effect is more homogeneous.
The preparation method of the above-mentioned inorganic nano paint that high intensity and wear-resistant coating are formed in substrate surface, including following step
Suddenly：
(1) by inorganic filler with appropriate proportioning with and the compatible solvent of film forming agent, i.e. carbon number is no more than 5 monohydric alcohol
The compound of one or more and dispersant, sagging inhibitor mixing after ultra-fine 0.5~48h of ball milling, obtain inorganic filler slurry；
(2) inorganic filler slurry, film forming agent, evaporation rate regulator and the levelling agent that will be obtained through step (1) are mixed by proportioning
Be put in after conjunction in high shear mixers or ball mill or the blade stirrer equipment with ultrasonic vibration function mix 10min~
72h；
(3) slurry that will be obtained through step (2) is filtered by more than or equal to 200 mesh standard sieves, and filtrate is inorganic nano
Coating.
It should be noted that Ball-milling Time is according to raw material dynamics composition, dispersion complexity adjustment grinding ball in step (1)
Material ratio, grinding concentration and anti-settling agent, dispersive agent ratio are determined.
A kind of above-mentioned application method for being coated on substrate surface and the inorganic nano paint of wear-resistant coating being formed, including with
Lower step：
A, coating preparation：Film forming agent, filler and regulator are carried out into mixing and ball milling by proportioning and prepares inorganic nano painting
Material；
B, pre-treatment：Substrate surface is roughened, clean and dried process (this step be selection process, this area skill
Art personnel should be understood that it is optional step)；
C, coating：Inorganic nano paint is coated on substrate surface；
The adjustment of D, levelling and surface：The product that step C is obtained is positioned over carries out levelling and portion in 15-30 DEG C of dust free room
Divide drying, (this step is selection process to dustless indoor humidity, it should be understood by those skilled in the art that it is nonessential less than 80%
Step)；
E, baking and curing：The product adjusted through levelling is placed in dustless drying curing box, is heated；
F, cool to the furnace close to after room temperature take out, obtain with inorganic coating product.
Sandblasting, soda acid chemistry microcorrosion method treatment substrate surface can be used, strengthens adhesion, increase substrate surface with it is inorganic
The surface area of nano paint contact.It is coated with the product of coating and is positioned over and levelling and table is dried in 15-30 DEG C of dust free room
Face adjusts；The dustless product for standing coating treatment under temperate condition, makes the automatic levelling effect of coating obtain smoothness surface, applies
Covering should be carried out with levelling process in dust free room, control 15~30 DEG C of room temperature condition, and temperature is too high to cause evaporation rate of solvent
It is too fast to cause cracking, pit, pin hole, it is too low, levelling can be caused excessively, influence the thickness of non-planar articles face coat uniform
Property, causes shaded effect poor, sunburner and the symptom such as ftracture；Damp condition should be controlled less than 80%, be otherwise easily caused by
There is the dew condensation phenomenon of water in solvent evaporation process floating coat surface, the phenomenon for causing coating to deteriorate due to being polluted by water is dried and made
Solvent in inorganic nano paint is volatilized.Coating 1-3 times, its coat is that can reach after the coating that conventional products are 2-3 times
Certain thickness, can natural levelling reach the effect of smooth finish, 1 coating of specialities can enter subsequent processing.In step E
Heating process be：40~50 DEG C of 10~20min of insulation；70~85 DEG C are warming up to, 10~15min is incubated；It is warming up to 115~
130 DEG C, it is incubated 15~30min；180~250 DEG C are warming up to, 10~60min is incubated.During baking and curing, surface region is molten
The controlled volatilization of agent, contraction and carry effect collective effect that the effect of surface levelling and solvent volatile zone come, produces nanoscale to dash forward
Rise and be recessed, greatly reduce the contact area in film formation surface and the external world.Nano-colloid particles by heat is activated and under transportation
Automatic position adjusting function is simultaneously and peripheral granule forms tough and tensile Si-O-Si keys, forms chemistry saturation degree high and low surface tension surface.Two
The synergy for planting effect produces the effect of " lotus leaf effect ", coating is possessed hydrophobic antifouling property naturally.
The membrane formation mechanism of inorganic coating of the present invention is connected by polycondensation between Si-OH, by baking and curing flow
Inorganic coating is obtained, although coated film inside solvent and other organic principles are removed completely, due to steric effect, still there is portion
Active group is divided not complete end reaction, its polycondensation process can continue slowly to carry out in use, and this causes the film to be formed
Hardness, wilfulness may proceed to improve for a comparatively long period of time, increase coating durability, while can also make coating to a certain degree
The upper good properties with " self-healing ", long service life.
Embodiment 1 --- external coating is the tap of claret
A, each raw material is weighed in following ratios：30% Ludox (film forming agent), 65% filler (the red pearly-lustre of 15% wine
The silica flour of powder+70%) and 5% regulator (wherein, evaporation rate regulator butanol accounts for the mass fraction of the gross mass of regulator
35%, dispersant oleic acid accounts for the mass fraction 35% of the gross mass of regulator, and levelling agent methyl methacrylate accounts for regulator
The mass fraction 10% of gross mass, anti-settling agent organobentonite accounts for the mass fraction 20% of the gross mass of regulator)；Regulator is equal
It is high-temperature volatile material, finally noresidue in the coating.
The preparation of coating：(1) by inorganic filler and absolute alcohol (volatile component will not be remained in resurfacing), dispersion
Ultra-fine 0.5~48h of ball milling after agent, sagging inhibitor mixing, obtains inorganic filler slurry, and the amount of the wherein addition of absolute alcohol accounts for total nothing
The 35% of the mass percent of machine extender paste.
(2) inorganic filler slurry, film forming agent, evaporation rate regulator and the levelling agent that will be obtained through step (1) are mixed by proportioning
Be put in after conjunction in high shear mixers or ball mill or the blade stirrer equipment with ultrasonic vibration function mix 10min~
72h；
(3) slurry that will be obtained through step (2) is filtered by more than or equal to 200 mesh standard sieves, and filtrate is inorganic nano
Coating.
Ludox (film forming agent) is made up of amorphous nano silica, colloid chemistry stabilizer, alcohols solvent.In fact one
Material known to kind, can be obtained by buying, and wherein amorphous nano dioxide-containing silica is more than or equal to 40%.In the present invention
In, the colloid chemistry stabiliser content of organic macromolecule in Ludox is used less than Ludox (film forming agent) gross mass
0.5%.
The filler for being used is inorganic material, and regulator is volatile material, therefore remain in the coating
The macromolecule organic for being difficult to volatilize at normal temperatures is extremely low, it is ensured that coating performance.
B, pre-treatment：Faucet surface is roughened, is cleaned and dried process；
C, coating：Inorganic nano paint is coated on tap sanitary equipment surface；
The adjustment of D, levelling and surface：The tap sanitary equipment that step C is obtained are positioned in 30 DEG C of dust free room and are dried,
Dustless indoor humidity is less than 80%；
E, baking and curing：The hardware sanitary equipment that will be adjusted through levelling are placed in dustless drying curing box, are heated.
F, cool to the furnace close to after room temperature take out, obtain external coating for claret tap, coating hardness test, lead
Hardness test, without vestige, salt fog resistance 1200hr is unchanged, and humidity resistance 540hr is unchanged for 3H.
Embodiment 2 --- external coating color is the glass stand of simple and elegant gold
A, each raw material is weighed in following ratios：(leaf of 40% lithopone+30% is green for 45% Ludox, 50% filler
It is yellow) and 5% regulator (wherein, evaporation rate regulator sec-butyl alcohol accounts for the mass fraction 70% of the gross mass of regulator, dispersant
Polysorbas20 accounts for the mass fraction 3% of the gross mass of regulator, and levelling agent methyl methacrylate accounts for the matter of the gross mass of regulator
Amount fraction 7%, anti-settling agent meteorology white carbon accounts for the mass fraction 20% of the gross mass of regulator)；
The preparation of coating：(1) ultra-fine ball milling 0.5 after inorganic filler is mixed with absolute alcohol, dispersant, sagging inhibitor~
48h, obtains inorganic filler slurry, and the amount of the wherein addition of absolute alcohol accounts for the 33% of the mass percent of total inorganic filler slurry.
(2) inorganic filler slurry, film forming agent, evaporation rate regulator and the levelling agent that will be obtained through step (1) are mixed by proportioning
Be put in after conjunction in high shear mixers or ball mill or the blade stirrer equipment with ultrasonic vibration function mix 10min~
72h；
(3) slurry that will be obtained through step (2) is filtered by more than or equal to 200 mesh standard sieves, and filtrate is inorganic nano
Coating.
B, pre-treatment：Glass stand metal surface is roughened, is cleaned and dried process；
C, coating：Inorganic nano paint is coated on glass stand metal surface；
The adjustment of D, levelling and surface：To step C obtain glass stand metal be positioned in 25 DEG C of dust free room carry out levelling and
Partially dried, dustless indoor humidity is less than 80%；
E, baking and curing：The hardware sanitary equipment that will be adjusted through levelling are placed in dustless drying curing box, are heated.
F, cool to the furnace close to after room temperature take out, obtain external coating for claret tap, coating hardness test, lead
Hardness test, without vestige, salt fog resistance 1250hr is unchanged, and humidity resistance 553hr is unchanged for 3H.
Embodiment 3 --- external coating color is argenteous towel rack
A, each raw material is weighed in following ratios：70% Ludox, 22% filler (flake aluminum) and 8% regulator
(wherein, evaporation rate regulator butyl cellosolve accounts for the mass fraction 50% of the gross mass of regulator, dispersant oleic acid and different
Butyl triethoxysilane accounts for the mass fraction 19% of the gross mass of regulator, and levelling agent dimethyl silicone polymer 2000 accounts for adjustment
The mass fraction 1% of the gross mass of agent, anti-settling agent polyamide wax accounts for the mass fraction 30% of the gross mass of regulator)；
The preparation of coating：(1) ultra-fine ball milling 0.5 after inorganic filler is mixed with absolute alcohol, dispersant, sagging inhibitor~
48h, obtains inorganic filler slurry, and the amount of the wherein addition of absolute alcohol accounts for the 40% of the mass percent of total inorganic filler slurry.
(2) inorganic filler slurry, film forming agent, evaporation rate regulator and the levelling agent that will be obtained through step (1) are mixed by proportioning
Be put in after conjunction in high shear mixers or ball mill or the blade stirrer equipment with ultrasonic vibration function mix 10min~
72h；
(3) slurry that will be obtained through step (2) is filtered by more than or equal to 200 mesh standard sieves, and filtrate is inorganic nano
Coating.
B, pre-treatment：Glass stand metal surface is roughened, is cleaned and dried process；
C, coating：Inorganic nano paint is coated on glass stand metal surface；
The adjustment of D, levelling and surface：To step C obtain glass stand metal be positioned in 20 DEG C of dust free room carry out levelling and
Partially dried, dustless indoor humidity is less than 80%；
E, baking and curing：The hardware sanitary equipment that will be adjusted through levelling are placed in dustless drying curing box, are heated.
F, cool to the furnace and taken out close to after room temperature, it is argenteous towel rack to obtain external coating color, and coating hardness is surveyed
Examination, pencil hardness test, without vestige, salt fog resistance 1300hr is unchanged, and humidity resistance 565hr is unchanged for 3H.
Embodiment 4 --- external coating color is elegant black water tank button
A, each raw material is weighed in following ratios：75% Ludox, 17% filler (15%Fe3O4+1% graphite+
5% biotite) and 8% regulator (wherein, evaporation rate regulator butanol accounts for the mass fraction of the gross mass of regulator
43.75%, dispersant oleic acid accounts for the mass fraction 18.75% of the gross mass of regulator, and levelling agent methyl methacrylate accounts for tune
The mass fraction 20% of whole dose of gross mass, anti-settling agent organobentonite accounts for the mass fraction 17.5% of the gross mass of regulator)；
The preparation of coating：(1) ultra-fine ball milling 0.5 after inorganic filler is mixed with absolute alcohol, dispersant, sagging inhibitor~
48h, obtains inorganic filler slurry, and the amount of the wherein addition of absolute alcohol accounts for the 38% of the mass percent of total inorganic filler slurry.
(2) inorganic filler slurry, film forming agent, evaporation rate regulator and the levelling agent that will be obtained through step (1) are mixed by proportioning
Be put in after conjunction in high shear mixers or ball mill or the blade stirrer equipment with ultrasonic vibration function mix 10min~
72h；
(3) slurry that will be obtained through step (2) is filtered by more than or equal to 200 mesh standard sieves, and filtrate is inorganic nano
Coating.
B, pre-treatment：Glass stand metal surface is roughened, is cleaned and dried process；
C, coating：Inorganic nano paint is coated on glass stand metal surface；
The adjustment of D, levelling and surface：To step C obtain glass stand metal be positioned in 20 DEG C of dust free room carry out levelling and
Partially dried, dustless indoor humidity is less than 80%；
E, baking and curing：The hardware sanitary equipment that will be adjusted through levelling are placed in dustless drying curing box, are heated.
F, cool to the furnace and taken out close to after room temperature, it is argenteous towel rack to obtain external coating color, and coating hardness is surveyed
Examination, pencil hardness test, without vestige, salt fog resistance 1270hr is unchanged, and humidity resistance 600hr is unchanged for 3H.
Embodiment group A
The corresponding proportioning of A, according to the form below 1-3 sequence numbers is weighed Ludox, filler and regulator, the preparation of coating：
(1) ultra-fine 0.5~48h of ball milling after inorganic filler is mixed with absolute alcohol, dispersant, sagging inhibitor, obtains inorganic filler slurry,
The amount of the wherein addition of absolute alcohol accounts for the 35% of the mass percent of total inorganic filler slurry.
(2) inorganic filler slurry, film forming agent, evaporation rate regulator and the levelling agent that will be obtained through step (1) are mixed by proportioning
Be put in after conjunction in high shear mixers or ball mill or the blade stirrer equipment with ultrasonic vibration function mix 10min~
72h；
(3) slurry that will be obtained through step (2) is filtered by more than or equal to 200 mesh standard sieves, and filtrate is inorganic nano
Coating, it is standby；
The filler of table 1, Ludox and regulator account for the proportioning table of the mass fraction of coating gross mass
The evaporation rate regulator of table 2, levelling agent and dispersion stabilizer account for the mass fraction proportioning table of regulator gross mass
The dispersant of table 3 and anti-settling agent account for the mass fraction proportioning table of dispersion stabilizer gross mass
| Sequence number | Dispersant | Anti-settling agent |
| A1 | 10% oleic acid | 90% meteorological white carbon |
| A2 | 15% oleic acid | 85% organobentonite |
| A3 | 18% polysorbas20 (polyoxyethylene 20 sorbitan monolaurate) | 82% polyamide wax |
| A4 | 20% (isobutyl triethoxy silane of 10% oleic acid+10%) | 80% meteorological white carbon |
| A5 | 22% oleic acid | 78% polyamide wax |
| A6 | 25% (isobutyl triethoxy silane of 13% oleic acid+12%) | 75% meteorological white carbon |
| A7 | 28% polysorbas20 | 72% organobentonite |
| A8 | 30% polysorbas20 | 70% polyamide wax |
| A9 | 32% (isobutyl triethoxy silane of 12% oleic acid+20%) | 68% meteorological white carbon |
B, pre-treatment：Hardware tap metal surface is roughened, is cleaned and dried process；
C, coating：Inorganic nano paint is coated on hardware tap metal surface；
The adjustment of D, levelling and surface：To step C obtain glass stand metal be positioned in 20 DEG C of dust free room carry out levelling and
Partially dried, dustless indoor humidity is less than 80%；
E, baking and curing：The hardware sanitary equipment that will be adjusted through levelling are placed in dustless drying curing box, are heated.
F, cool to the furnace close to after room temperature take out, carry out product quality detection, experimental result see the table below 4.
Table 4 obtains the performance test results of hardware products
| Sequence number | Product appearance | Pencil hardness test | Salt fog resistance | Humidity resistance |
| 1 | Transparent black | 4H is without vestige | 1270hr is unchanged | 600hr is unchanged |
| 2 | It is bronze | 4H is without vestige | 1265hr is unchanged | 580hr is unchanged |
| 3 | Claret | 4H is without vestige | 1250hr is unchanged | 567hr is unchanged |
| 4 | Black | 4H is without vestige | 1237hr is unchanged | 573hr is unchanged |
| 5 | Silvery white | 3H is without vestige | 1270hr is unchanged | 580hr is unchanged |
| 6 | Black | 3H is without vestige | 1245hr is unchanged | 567hr is unchanged |
| 7 | Claret | 3H is without vestige | 1235hr is unchanged | 550hr is unchanged |
| 8 | Claret | 3H is without vestige | 1240hr is unchanged | 567hr is unchanged |
| 9 | Jin Tongse | 3H is without vestige | 1260hr is unchanged | 553hr is unchanged |
Know-why of the invention is described above in association with specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and can not by any way be construed to limiting the scope of the invention.Based on explanation herein, the technology of this area
Personnel associate other specific embodiments of the invention by would not require any inventive effort, these modes fall within
Within protection scope of the present invention.
Claims (5)
1. a kind of inorganic nano paint for being coated on substrate surface and wear-resistant coating being formed, it is characterised in that：It is described inorganic to receive
Rice coating is included with inorganic nano SiO2Colloidal sol is the film forming agent of principal component；
The inorganic nano SiO2The content of organic high molecular compound is less than 0.5% in colloidal sol, and metal ion content is less than
80ppm；The raw material of the inorganic nano paint includes following components：30-95% film forming agents, 0-65% fillers and 0.05-8% are adjusted
Whole dose；The film forming agent is by Nano-meter SiO_22, colloid chemistry stabilizer and alcohol solvent composition；The colloid chemistry stabilizer is tool
The alkali or the salt containing only small-molecular-weight organic acid of volatilization attribute when having heating；The central atom of the alkali or salt is
Nitrogen, phosphorus, oxygen, sulphur or bromine.
2. a kind of inorganic nano paint for being coated on substrate surface and wear-resistant coating being formed according to claim 1, its
It is characterised by：The regulator includes dispersion stabilizer, levelling agent and evaporation rate conditioning agent.
3. a kind of inorganic nano paint for being coated on substrate surface and wear-resistant coating being formed according to claim 2, its
It is characterised by：The evaporation rate conditioning agent is at least one of alcohols, phenols, amine, amide-type or fluorochemical.
4. a kind of preparation side for being coated on substrate surface and the inorganic nano paint of wear-resistant coating being formed described in claim 3
Method, it is characterised in that：Comprise the following steps：
(1) by inorganic filler with appropriate proportioning with and the compatible solvent of film forming agent, i.e. carbon number be no more than 5 monohydric alcohol and
Ultra-fine 0.5~48h of ball milling after dispersant, sagging inhibitor mixing, obtains inorganic filler slurry；
(2) after inorganic filler slurry, film forming agent, evaporation rate regulator and the levelling agent that will be obtained through step (1) are by proportioning mixing
It is put in mixing 10min~72h in high shear mixers or ball mill or the blade stirrer equipment with ultrasonic vibration function；
(3) slurry that will be obtained through step (2) is filtered by more than or equal to 200 mesh standard sieves, and filtrate is inorganic nano paint.
5. it is according to claim 1 a kind of to be coated on substrate surface and making for the inorganic nano paint of wear-resistant coating can be formed
With method, it is characterised in that：Comprise the following steps：
A, coating preparation：Film forming agent, filler and regulator are carried out into mixing and ball milling by proportioning and prepares inorganic nano paint；
B, coating：Inorganic nano paint is coated on substrate surface；
C, drying：Step B is coated with the sanitary equipment drying of inorganic nano paint, the product with inorganic coating is obtained.
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| CN112457693A (en) * | 2020-11-19 | 2021-03-09 | 西安理工大学 | Magnesium alloy plate alkali-resistant coating material and preparation method and application thereof |
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| CN114394826B (en) * | 2022-01-19 | 2022-10-14 | 湖南湘瓷科艺有限公司 | Manufacturing process of high-performance nano-material ceramic thin-film device |
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