CN109867991A - One kind is exempted to cure high-performance ceramic sealing wax and preparation method thereof - Google Patents
One kind is exempted to cure high-performance ceramic sealing wax and preparation method thereof Download PDFInfo
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Abstract
Exempt to cure high-performance ceramic sealing wax and preparation method thereof the present invention relates to one kind.The coating is made of component A, B component and component C.By weight, component A is made by the mixing dispersion of following raw materials: acidic silicasol, acidic aluminum sol, acid zirconium colloidal sol or its arbitrarily than mixture, deionized water, alcohols solvent；B component is methyl trialkoxysilane, phenyl trialkoxysilane, tetraalkoxysilane, dimethyldialkylammonium oxysilane, diphenyl dialkoxy silicane, silane coupling agent, not viscous auxiliary agent, catalyst；Component C is made by the mixing dispersion of following raw materials: deionized water, isopropanol or ethyl alcohol, acidic silicasol, neutral silica solution and its arbitrarily than mixture, inorganic filler, coloring pigment, toughening lotion, dispersing agent, other auxiliary agents.The present invention need not cure, and easy construction is had excellent performance, good environmental protection, be easy large-scale production, be a kind of novel high-performance aqueous coating.
Description
Technical field
Exempt to cure high-performance ceramic sealing wax and its preparation side the present invention relates to fluorine silicon field of new materials more particularly to one kind
Method.
Background technique
It is point with water under the background that the safe and healthy consciousness of the unprecedented stringent and people of Environmental Protection in China policy is increasingly enhanced
Dispersion media welcomes unprecedented opportunity to develop by the high-performance sealing wax of film forming matter of water solubility/water dispersed resin.Nano ceramics
Coating is aided with inorganic nano-particle and high temperature resistant pigments and fillers, passes through sol-gel method using siloxanyl monomers or oligomer as raw material
It is prepared, many general water paints, the even incomparable advantage of solvent based coating is shown, such as high temperature resistant, fire-retardant nothing
Cigarette, high rigidity, rub resistance, excellent weatherability and guarantor's light unfading etc..Only from the angle for resisting external environment destruction
For, ceramic coating can be rated as " perfection ".
However, development has nearly 40 years so far since ceramic coating has many very important technological deficiencies
History, using being still confined to a small number of fields such as non-stick pan, aluminum curtain walls: (1) inconvenient to use.Conventional nano ceramic coating uses
The preceding hydrolysis and curing time needed not less than 4h, the additive amount of siloxane starting material hydrolyst and hydrolysis cured in formula
Effect is finally all presented to coating for journey has a direct impact, and even results in coating failure；(2) coating hardness is very high, but flexibility is very
Difference, in solidification and use process, coating is also easy to happen cracking or even splits away off from substrate；(3) common organosilicon pottery
Porcelain coating does not have adhesive force on exhausted most organic coatings, can only directly be painted on itself some corrosion resistance as single track coating
Energy is excellent, thermal expansion system matches preferable metallic substrate surface, and the application (4) that this technological deficiency greatly limits it is traditional
Nano ceramic coat recoats poor performance, and the maintenance to construct with coating brings many inconvenience.
The siloxanyl monomers that Guo Jiazhen etc. (CN 101760057A) selects sheet pigments and fillers different with hydrolysis rate are original
Material has invented a kind of method for preventing ceramic coating from solidifying cracking.Chen Zihui etc. (coatings industry, 2017,47 (11), 1-7) report
A kind of method with latex particle toughening ceramic coating in road, foreshortens to the hydrolysis curing time of ceramic coating 30 minutes or so.
Though similar paper and patent is often seen in report, however fundamental issue present in ceramic coating does not obtain very
It solves well.
Summary of the invention
The first purpose of this invention is: providing one kind and exempts to cure high-performance ceramic sealing wax.The ceramics sealing wax matches paint process
It only needs 2~5 minutes, prepared coating applicable period is not less than 8 hours；Coating can in low-temperature bake solidification, can also be solid with room temperature
Change；Coating after solidification has hardness height, scratch-resistant, fire-retardant, high temperature resistant, and anti-oxidant, resistant to chemical media protects light unfading
It is good, food-grade touch-safe performance is high, many advantages, such as can recoating, can be used as a kind of universal, high-performance water-based finishing coat application
In all kinds of metal bases, organic coating and engineering plastic surface.
To realize that said effect, the technical solution adopted in the present invention are as follows:
One kind is exempted to cure high-performance ceramic sealing wax, it is mixed with by tri- component of A, B, C, and component C is to contain nanometer
The mill base of toughening particle；
By weight, component A is made by the mixing dispersion of following raw materials: acidic silicasol, acidic aluminum sol, acid zirconium are molten
Glue or its arbitrarily than 0~100 part of mixture, 0~100 part of deionized water, alcohols solvent 0~15；
By weight, B component be 80~99 parts of methyl trialkoxysilane, 0~15 part of phenyl trialkoxysilane, four
It is 0~10 part of alkoxy silane, 0~8 part of dimethyldialkylammonium oxysilane, 0~4 part of diphenyl dialkoxy silicane, silane coupled
0~10 part of agent, not viscous 0~5 part of auxiliary agent, 0.2~2 part of catalyst；
By weight, component C is made by the mixing dispersion of following raw materials: 0~60 part of deionized water, isopropanol or ethyl alcohol 0
~15 parts, acidic silicasol, neutral silica solution and its arbitrarily than 0~100 part of mixture, 0~40 part of inorganic filler, coloring pigment
0~40 part, 0~100 part of toughening lotion, 0~5 part of dispersing agent, 0~1 part of other auxiliary agents.
Further, the partial size of acidic silicasol is 5~40nm.
Further, alcohols solvent is that ethyl alcohol, isopropanol or both arbitrarily compare mixture.
Further, methyl trialkoxysilane is methyltrimethoxysilane or methyltriethoxysilane；Four alcoxyls
Base silane is tetramethoxy-silicane or tetraethoxysilane；Phenyl trialkoxysilane is phenyltrimethoxysila,e or phenyl three
Ethoxysilane；Dimethyldialkylammonium oxysilane is dimethyldimethoxysil,ne or dimethyl diethoxysilane；Diphenyl
Dialkoxy silicane is dimethoxydiphenylsilane or diphenyl diethoxy silane.
Further, silane coupling agent is γ-(2,3- propylene oxide) propyl trimethoxy silicane, γ-(2,3- epoxies third
Alkane) propyl-triethoxysilicane, gamma-amino propyl trimethoxy silicane, one of γ aminopropyltriethoxy silane or
Several mixtures of person.
Further, not viscous auxiliary agent is dimethyl hydroxyl silicon oil and fluorine-containing hydroxy silicon oil.
Further, catalyst is hydrochloric acid, acetic acid, citric acid and formic acid.
Further, inorganic filler includes mica, talcum powder, alumina powder, silicon whisker, silicon powder, glass flake, precipitating
Any ratio mixing of barium sulfate.
Further, coloring pigment is titanium white, carbon black, copper-chrome black, iron oxide red, iron oxide yellow, bright red, phthalocyanine blue, phthalocyanine green, bismuth
One of Huang, cobalt blue, cobalt blue, nano iron oxide, pearlescent pigment, metallic pigments allotment mill base or more than one mixture；
Toughening lotion is one of acrylic emulsion, epoxy emulsion, organic silicon emulsion or several mixtures, and latex particle is put down
Equal partial size is between 20nm~1 μm.
Second object of the present invention is: providing a kind of preparation method for exempting to cure high-performance ceramic sealing wax, it is by as follows
Step composition:
1. preparing each raw material needed for prepared by component A, B component and component C respectively；
2. the preparation of component A: according to the proportion in component A, by deionized water, silica solution, Aluminum sol, zirconium colloidal sol and alcohols
Stirring solvent is uniform；
3. the preparation of component B: according to the formula of component B, by siloxanyl monomers, silane coupling agent, catalyst and not viscous helping
Agent is added to the container, and after stirring to transparent and homogeneous state, is filtered and packaged up to B component；
4. the preparation of component component C: after being mixed each component in addition to toughening lotion according to formula, grinding at a high speed
Pigments and fillers are dispersed to regulation fineness under mill dispersion machine, toughening lotion is added after discharging and is mixed evenly, filters and packages up to C
Component；
5. the preparation of coating: at room temperature, component A and B component are mixed according to the ratio of 1:2~3:1, after stirring 2~5min
It is added in the component C of metering, after mixing evenly i.e. sprayable use.
Compared with prior art, the invention has the following advantages:
Compared with traditional ceramic coating, the present invention while keeping Conventional nano ceramic coating various advantages,
Level identical with double-component acrylic acid polyurethane, two-component epoxy coating is shortened to the time required to coating preparation, drop significantly
The difficulty of low construction.In addition to this, ceramic coating of the present invention is rich in color, and effect multiplicity can prepare assorted solid color enamel, can also
To prepare various aluminium paints, opalescent lacquers；It can not only be directly applied to the preferable substrate of itself corrosion resistance such as aluminium alloy, copper
Surface, is also used as a kind of novel high-performance inorganic finishing coat and other organic coatings are matched and applied in steel, engineering
The substrate surfaces such as plastics, ceramic tile provide more structurally sound protective performance and decorative performance.The present invention exempts to cure ceramic sealing wax preparation
Simple process, does not use organic solvent substantially, and environmentally protective, high-performance is easy large-scale production, as a kind of universal finishing coat
With very high application value.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, rather than whole embodiments.
Embodiment raw materials are unless otherwise stated commercially available industrial goods, can be bought by commercial channel；
Acidic silicasol used in embodiment is the acidic silicasol of Suzhou Na Di Microtronics A/S production, Gu
Body content is 30wt%, and silica solution average grain diameter is 12nm, and the Ludox series that U.S.'s Grace chemical production can also be used is acid
Silica solution；Zirconium colloidal sol is Xuancheng Jingrui New Material Co., Ltd.'s production, solid content 10%, 5~10nm of partial size.；
Anionic toughened acrylic yogurt liquid is Jiangsu Chenguang Coating Co., Ltd's made products, product grade CHG-
5601, solid content 45%, pH is about 7, latex particle average grain diameter 45nm, and glass transition temperature is 35 DEG C.
It is as follows to detect the method that ceramic membrane performance uses: hardness is measured by GB/T1730-1993 method；Adhesive force is pressed
The measurement of GB/T9286-1998 method；Flexibility is measured by GB/T 1731-1993 method；Resistant to liquid dielectric behavior is according to GB/T
9274-1988 measurement；Water boiling resistance performance is measured according to GB/T 5209-1985.
Embodiment 1-2:
The preparation of component A: it is formulated, each component is mixed evenly, filtering according to shown in table 1；
Uniform be made is mixed with marketable material in B component；
The preparation of component C: by according to the formula in table 1, all raw materials in addition to toughening lotion is added in scuffing of cylinder bore, stir evenly
Afterwards, mill base fineness is ground to 20 μm hereinafter, discharging, mixes with the toughened acrylic yogurt liquid of metering and stir in high-speed dispersion equipment
After mixing uniformly, as component C；
A, B component are mixed according to 1:1, is stirred to react after five minutes with the speed of 1200r/min, is added in component C and stirs
Uniformly, with the filtering of 100 mesh filter screens, for spraying, wherein by quality ratio, component A: B component: component C=1:1:2；
Substrate is polished after selecting (1) 2mm thickness aluminium sheet, oil removing degreasing with 300 mesh sand paper；(2) it is coated with acroleic acid polyurethane bottom
The tinplate of paint is roughened primary coat with 1000 mesh sand paper before spraying.
Using manual spray, film thickness monitoring is at 35 μm or so.Condition of cure: (1) it after dodging dry 10min at 60 DEG C, is placed in
Solidify 20min at 160 DEG C；(2) at 60 DEG C after predrying 30min, room temperature is maintained 7 days.On ceramic coating after hardening, use
The ceramic coating for spraying above-mentioned preparation after the polishing of 300 mesh sand paper again, observes its recoatability after solidification.Experimental result is shown in Table 2 Hes
Table 3.
Table 1, embodiment 1-2 formula and coating result
The coating technology parameter of table 2, embodiment 1
The coating technology parameter of table 3, embodiment 2
From upper table 2 and table 3 as can be seen that the present invention, which exempts from curing ceramic coating, maintains Conventional nano ceramic coating high rigidity
With preferable resistant to chemical media, water boiling resistance ability, and there is preferable adhesive force on acroleic acid polyurethane priming coat.In addition, pottery
The color of porcelain coating can be adjusted with function by formula composition.It will be apparent to those skilled in the art that can according to
The technical solution and design of upper description, make various other corresponding changes and deformation, and all these change and
Deformation all should belong within the scope of protection of the claims of the present invention.
Claims (10)
1. one kind is exempted to cure high-performance ceramic sealing wax, which is characterized in that it is mixed with by tri- component of A, B, C, and component C is
Mill base containing nanometer toughening particle；
By weight, the component A is made by the mixing dispersion of following raw materials: acidic silicasol, acidic aluminum sol, acid zirconium are molten
Glue or its arbitrarily than 0~100 part of mixture, 0~100 part of deionized water, alcohols solvent 0~15；
By weight, the B component be 80~99 parts of methyl trialkoxysilane, 0~15 part of phenyl trialkoxysilane, four
It is 0~10 part of alkoxy silane, 0~8 part of dimethyldialkylammonium oxysilane, 0~4 part of diphenyl dialkoxy silicane, silane coupled
0~10 part of agent, not viscous 0~5 part of auxiliary agent, 0.2~2 part of catalyst；
By weight, the component C is made by the mixing dispersion of following raw materials: 0~60 part of deionized water, isopropanol or ethyl alcohol 0
~15 parts, acidic silicasol, neutral silica solution and its arbitrarily than 0~100 part of mixture, 0~40 part of inorganic filler, coloring pigment
0~40 part, 0~100 part of toughening lotion, 0~5 part of dispersing agent, 0~1 part of other auxiliary agents.
2. described in accordance with the claim 1 exempt to cure high-performance ceramic sealing wax, it is characterised in that: the partial size of the acidic silicasol
For 5~40nm.
3. it is described in accordance with the claim 1 exempt from cure high-performance ceramic sealing wax, it is characterised in that: the alcohols solvent be ethyl alcohol,
Isopropanol or both arbitrarily compares mixture.
4. described in accordance with the claim 1 exempt to cure high-performance ceramic sealing wax, it is characterised in that: the methyl trialkoxysilane
For methyltrimethoxysilane or methyltriethoxysilane；The tetraalkoxysilane is tetramethoxy-silicane or tetraethoxy
Silane；The phenyl trialkoxysilane is phenyltrimethoxysila,e or phenyl triethoxysilane；The dimethyldialkylammonium
Oxysilane is dimethyldimethoxysil,ne or dimethyl diethoxysilane；The diphenyl dialkoxy silicane is hexichol
Base dimethoxysilane or diphenyl diethoxy silane.
5. described in accordance with the claim 1 exempt to cure high-performance ceramic sealing wax, it is characterised in that: the silane coupling agent is γ-
(2,3- propylene oxide) propyl trimethoxy silicane, γ-(2,3- propylene oxide) propyl-triethoxysilicane, gamma-amino propyl
One of trimethoxy silane, γ aminopropyltriethoxy silane or several mixtures.
6. described in accordance with the claim 1 exempt to cure high-performance ceramic sealing wax, it is characterised in that: the not viscous auxiliary agent is dimethyl
Hydroxy silicon oil and fluorine-containing hydroxy silicon oil.
7. described in accordance with the claim 1 exempt to cure high-performance ceramic sealing wax, it is characterised in that: the catalyst is hydrochloric acid, vinegar
Acid, citric acid and formic acid.
8. described in accordance with the claim 1 exempt to cure high-performance ceramic sealing wax, it is characterised in that: the inorganic filler includes cloud
Any ratio mixing of mother, talcum powder, alumina powder, silicon whisker, silicon powder, glass flake, blanc fixe.
9. it is described in accordance with the claim 1 exempt from cure high-performance ceramic sealing wax, it is characterised in that: the coloring pigment be titanium white,
Carbon black, copper-chrome black, iron oxide red, iron oxide yellow, bright red, phthalocyanine blue, phthalocyanine green, bismuth Huang, cobalt blue, cobalt blue, nano iron oxide, pearlescent pigment,
Metallic pigments deploy one of mill base or more than one mixture；The toughening lotion be acrylic emulsion, epoxy emulsion,
One of organic silicon emulsion or several mixtures, the average grain diameter of latex particle is between 20nm~1 μm.
10. it is according to claim 1 it is a kind of exempt from cure high-performance ceramic sealing wax preparation method, it is characterised in that: it by
Following steps composition:
1. preparing each raw material needed for prepared by component A, B component and component C respectively；
2. the preparation of component A: according to the proportion in component A, by deionized water, silica solution, Aluminum sol, zirconium colloidal sol and alcohols solvent
It stirs evenly；
3. the preparation of component B: according to the formula of component B, siloxanyl monomers, silane coupling agent, catalyst and not viscous auxiliary agent being added
Enter in container, after stirring to transparent and homogeneous state, filters and packages up to B component；
4. the preparation of component component C: after being mixed each component in addition to toughening lotion according to formula, in high speed grinding point
It dissipates and pigments and fillers is dispersed to regulation fineness under machine, toughening lotion is added after discharging and is mixed evenly, filters and packages up to C group
Point；
5. the preparation of coating: at room temperature, component A and B component are mixed according to the ratio of 1:2~3:1, are added after stirring 2~5min
Into the component C of metering, i.e. sprayable use after mixing evenly.
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