CN103881431B - A kind of silane coupler modified lithium silicate base coating and preparation method thereof - Google Patents
A kind of silane coupler modified lithium silicate base coating and preparation method thereof Download PDFInfo
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- CN103881431B CN103881431B CN201410109166.7A CN201410109166A CN103881431B CN 103881431 B CN103881431 B CN 103881431B CN 201410109166 A CN201410109166 A CN 201410109166A CN 103881431 B CN103881431 B CN 103881431B
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Abstract
The invention discloses a kind of silane coupler modified lithium silicate coating, adopt 90 weight part lithium silicates, 3 ~ 10 weight part pigment, 3 ~ 10 parts of filler material by weight, 1 ~ 5 weight part silane coupling agent, 1 ~ 5 weight part solidifying agent and 2 ~ 5 weight parts waters to prepare.Silane coupler modified lithium silicate coating provided by the invention overcome film hard and crisp, easily occur chapping, the undesirable problem of decorative effect, can also self cure at normal temperatures, energy consumption is little, and VOC substance release amount is zero, and environmental protection is pollution-free.
Description
Technical field
The present invention relates to coating material production field, particularly relate to a kind of silane coupler modified lithium silicate base coating, also relate to the preparation method of described silane coupler modified lithium silicate base coating.
Background technology
Lithium silicate base coating is the one in water glass coating (also claiming water glass system inorganic paint).The component of water glass coating is water glass, solidifying agent, stopping composition and pigment and auxiliary etc.Water glass is the jointing compound in water glass coating, and also known as base-material or tackiness agent, it is the key ingredient of coating, and main rising bonds and filming function.Water glass is made up of alkalimetal silicate, generally comprises lithium silicate (Li
2onSiO
2), sodium silicate (Na
2onSiO
2), potash water glass (K
2onSiO
2) and potassium-sodium water glass (K
2oNa
2onSiO
2), wherein n refers to modulus.Testing data shows, alkalimetal silicate is different with basic metal, and its water tolerance is different.In general, be that lithium is better than potassium, potassium is better than sodium.Lithium ion is very little, and electric density is high, generates huge hydrated ion in the solution, hinders silica ions to contact with each other, be polymerized, thus can obtain lithium silicate base coating that is stable, high-module (during modulus height water-tolerant).
Lithium silicate base coating, has the following advantages: 1) environmental protection, makees solvent with water, avoid with an organic solvent produce pollution and murder by poisoning; 2) corrosion-resistant, there is the corrosion of higher organic solvent-resistant; 3) fire-retardant, high temperature resistant, radiation hardness; 4) hardness is high, wear resistance good, resistance to biological degradation.In addition it also has the self cure ability that most of inorganic paint does not have, excellent water tolerance and humid-dry cycling resistance.
The self cure of lithium silicate base coating, also known as from dryness, namely after moisture spontaneous evaporation, can generate a kind of water-fast dry film.By contrast, silicic acid sodium-based coating or potassium silicate base coating, often need subsidiary conditions to solidify, and the poor water resistance after solidification.This is because lithium silicate base coating has the characteristic with water-wetted surface reaction film forming, water-wetted surface refers to that surface has material (as glass, iron and steel, aluminium and the fiber etc.) surface of hydroxyl.This film formation reaction can carry out more than 60 DEG C, and temperature is higher, reacts faster.Film forming thickness also increases with temperature of reaction and time and increases.This membrane formation mechanism is hydroxyl reaction, to dehydrate mechanism different.Dehydrate and need high temperature, high humidity as condition of cure.
But also there is following defect in lithium silicate base coating: hard and crisp, the easy appearance of film is chapped, decorative effect is undesirable.Need to carry out modification to lithium silicate base coating for this problem, existing modification lithium silicate base coating mainly contains the lithium silicate base coating of thermofixation, adopts the lithium silicate base coating, sour modification lithium silicate base coating etc. of solidifying agent solidification.The lithium silicate base coating property of thermofixation is excellent, but needs larger energy consumption, and very difficult for the outside construction of heavy construction.The lithium silicate base coating of external reinforcement agent solidification, its solidifying agent mainly Sodium Silicofluoride, Sodium Silicofluoride environmental pollution is harmful to, and should give and abandons.Acid modification lithium silicate base coating easily produces gelling, and need accurately control sour mixed ratio and mix speed, the excessive concentration of mixing excessive velocities or acid can make locally gel to occur, and generates grain bulk insolubles, affects appearance of coat effect.
Summary of the invention
Film for lithium silicate base coating is hard and crisp, easily occur the problem that chaps, decorative effect is undesirable, the invention provides a kind of silane coupler modified lithium silicate base coating.
A kind of silane coupler modified lithium silicate base coating, the weight part of its raw material consists of:
Described lithium silicate to be mass percent be 20 ~ 30% lithium silicate aqueous solution, the modulus of lithium silicate is 4 ~ 25, and described silane coupling agent is water-soluble and is hydrolyzed into alkalescence.
Lithium silicate is dehydrating and curing very easily, therefore lithium silicate generally exists with lithium silicate aqueous solution, and the water of 2 ~ 5 weight parts added in raw material is in order to pigment and filler incipient wetness.
When silane coupling agent consumption is more, snappiness compares poor, pigment and amount of filler is many also can have certain influence to coating flexibility.
As preferably, the weight part of described raw material consists of:
When the modulus of lithium silicate is too small, its water tolerance and cohesiveness can be poor, and it is poor that modulus crosses too large fluidity, and unstable easily cohesion during storage, preferably, the modulus of described lithium silicate is 4 ~ 10.
Further preferably, the modulus of described lithium silicate is 4 ~ 8.
Contriver finds through repetition test, adds the dispersiveness that a small amount of tensio-active agent can increase color stuffing in silane coupler modified lithium silicate base coating, and preferably, described tensio-active agent is 0.1 ~ 1 weight part.
Select suitable filler, contribute to the cohesive strength of enhancing lithium silicate base coating, improve use temperature, reduce costs and reduce cure shrinkage, but lithium silicate base paint viscosity is too high when filling adding amount is too much, was both unfavorable for coating construction, had also easily caused the defect such as bubble, pore.Therefore, wire feeding and content affect very large on lithium silicate base coating mechanical property and heat resistance.The selection principle of filler is:
(1) linear expansivity of filler and lithium silicate basically identical, ensure will coating be caused to lose efficacy because thermal stresses is too high in hot environment;
(2) filler itself also should have good mechanical strength, thermotolerance and water tolerance.
As preferably, described filler is one or more in silica powder, glass-cermic powder, mica powder, kaolin, coal clay.
According to the selection principle of above-mentioned filler, above 5 kinds of fillers all have linear expansivity close to lithium silicate, temperature tolerance good and mechanical strength high, and raw material be easy to get, with low cost.Main chemical compositions due to above 5 kinds of fillers is silico-aluminate (siliceous oxide compound and the oxide compound of aluminium), namely it is all similar to the matrix composition of lithium silicate, therefore and consistency between lithium silicate and Combination excellent, be in particular in that mixed coating there will not be space or crackle, thus effectively improve snappiness and the thermotolerance of coating.On the other hand, all with a small amount of hydroxyl, can continue to react with lithium silicate in the surface of silica powder, glass-cermic powder, mica powder, kaolin, coal clay, more firm after making paint solidification.
In coating, add pigment is not only the color wanted to mix us, also contemplates the gloss of pigment, opacifying power, mobility, levelling property, weather resistance, film stability, ventilation property etc.
As preferably, described pigment is selected from carbon black, titanium oxide, ferric oxide, chromic oxide and cobalt oxide.
Titanium oxide is also known as titanium dioxide, and because specific refractory power is high, other white pigment of energy force rate of scattering of light is all strong, has fabulous opacifying power in pigmented coating.The main component of carbon black is carbon, the fine size of carbon black, and it is the best a kind of black pigment of opacifying power and tinting strength, can heat-resisting and resistance to chemical attack, can absorb assorted spectrum, so there is black highly.The color of ferric oxide is by orange red to purplish red, and resistance to opticity is good, can high temperature resistant, resistant foul smell body, alkaline-resisting, tinting strength good, strong covering power, is only second to carbon black.Chromic oxide, also known as chrome green, has fast light and corrosion resistant characteristic.Cobalt oxide, except the characteristic with common pigments, can also play a part to urge dry in coating, helps coating rapid airing.
Silane coupling agent is the key of lithium silicate base modified paint, first must be able to be dissolved in water, can not be acid after next is water-soluble, if acid, coating can be made to condense and affect coating final effect, thus the silane coupling agent adopted is neutral meta-alkalescence, be preferably alkalescence, this type of silane coupling agent is the group containing adsorbable H+, such as amino, as preferably, described silane coupling agent contains amino.
Have in silane coupled agent molecule simultaneously can and inanimate matter material (as glass, silica sand, metal etc.) chemically combined reactive group and with organic material (synthetic resins etc.) chemically combined reactive group.In alkalescence after water-soluble containing amino silane coupling agent, lithium silicate can be avoided to produce gel.On the other hand, the easier and inanimate matter material effect containing amino silane coupling agent, good bonding strength.Containing effect in amino silane coupling agent it is preferred that γ-aminopropyl triethoxysilane (KH550).
Described solidifying agent is inorganic solidification agent.Preferably, described solidifying agent is one or more the mixing in aluminum phosphate, silicon phosphate, zinc oxide.Aluminum phosphate, silicon phosphate, zinc oxide is all nontoxic, do not fire, seepage force is strong, and can form a network structure with other compositions of coating at three-dimensional space, produce hardness of matter, make the structure of coating finer and close, firm, pore is efficiently sealed.
As preferably, described tensio-active agent is one or more in cellulose acetate, polyvinyl alcohol, methylcellulose gum.Tensio-active agent, as stabilization aid, can improve the dispersiveness of pigment and filler, and wherein cellulose acetate, polyvinyl alcohol, methylcellulose gum can generate composite membrane-forming thing further with lithium silicate, increases paint adhesion.
The invention also discloses a kind of preparation method of silane coupler modified lithium silicate base coating, comprise the following steps:
(1) pigment and filler are mixed to get mixture;
(2) mixture that step (1) obtains is mixed with water and lithium silicate, obtained lithium silicate;
(3) in described lithium silicate, add silane coupling agent, tensio-active agent and solidifying agent, after mixing, namely make silane coupler modified lithium silicate base coating.
In order to make the coating of preparation reach good fluidity and planeness, improving decorative effect further, need control the granularity of pigment and filler, granularity is unsuitable excessive, preferably, and the granularity≤10um of pigment and filler.
Compared with prior art, tool of the present invention has the following advantages:
Silane coupler modified lithium silicate base coating provided by the invention relatively with the lithium silicate base coating of other modifications existing, not only overcome film hard and crisp, easily occur chapping, the undesirable problem of decorative effect, can also self cure at normal temperatures, energy consumption is little, VOC material (referring to the general name holding volatile organic substance at normal temperatures) burst size is zero, and environmental protection is pollution-free.
Embodiment
Below in conjunction with example to further detailed description of the present invention, but embodiments of the present invention are not limited thereto.
Embodiment 1
Prepared by coating
Silica powder and chromic oxide are ground respectively in ball mill, and filter out silica powder and the chromic oxide of granularity≤10um, the chromic oxide getting 5 parts of granularities≤10um silica powder and 5 parts of granularity≤10um mixes, to add 5 parts of water and 90 parts of mass percents be again 22.5% modulus be 4.8 lithium silicate aqueous solution carry out mix and blend, measure with diameter measurement instrument, degree of scatter in mixture reaches below 10um, elimination insolubles.In whipping process, slowly add 3 parts of γ-aminopropyl triethoxysilanes (KH550), 3 parts of aluminum phosphates and 1 part of zinc oxide, stir, obtain silane coupler modified lithium silicate coating.
The flexility of coating
The impact strength of coating is 30kgcm, and snappiness and the shock-resistance of coating are associated, and the shock-resistance intensity of coating is high reflects that the snappiness of coating is good.
Other performances of coating
Coating is within normal temperature (10 ~ 40 DEG C) surface drying is time 2 h, and complete set time is within one week; Paint solidification postadhesion power reaches 1 grade, and water-fast, organic solvent-resistant; Can resisting salt fog corrosion in coating 24h; Pencil hardness test reaches 5H.
Embodiment 2
Mica and titanium oxide are ground respectively in ball mill, and filter out two micas and the titanium oxide of granularity≤10um, the titanium oxide getting 5 parts of granularities≤10um mica and 10 parts of granularity≤10um mixes, to add 5 parts of water and 90 parts of mass percents be again 22.5% modulus be 4.8 lithium silicate aqueous solution carry out mix and blend, measure with diameter measurement instrument, degree of scatter in mixture reaches below 10um, elimination insolubles.In whipping process, slowly add 1 part of γ-aminopropyl triethoxysilane (kh550), 3 parts of aluminum phosphates and 0.5 part of zinc oxide, stir, obtain required coating.
The flexility of coating
The impact strength of coating is 40kgcm, and snappiness and the shock-resistance of coating are associated, and the shock-resistance intensity of coating is high reflects that the snappiness of coating is good.
Other performances of coating
Coating is within normal temperature (10 ~ 40 DEG C) surface drying time is 1 hour, and complete set time is within one week; Paint solidification postadhesion power reaches 1 grade, and water-fast, organic solvent-resistant; Can resisting salt fog corrosion in coating 24h; Pencil hardness test reaches 5H.
Embodiment 3
Prepared by coating
Silica powder and ferric oxide are ground respectively in ball mill, and filter out silica powder and the chromic oxide of granularity≤10um, the ferric oxide getting 5 parts of granularities≤10um silica powder and 5 parts of granularity≤10um mixes, to add 5 parts of water and 90 parts of mass percents be again 22.5% modulus be 4.8 lithium silicate aqueous solution carry out mix and blend, measure with diameter measurement instrument, degree of scatter in mixture reaches below 10um, elimination insolubles.In whipping process, slowly add 1 part of γ-aminopropyl triethoxysilane (KH550) and 1 part of aluminum phosphate, stir, obtain required coating.
The flexility of coating
The impact strength of coating is 45kgcm, and snappiness and the shock-resistance of coating are associated, and the impact strength of coating is high reflects that the snappiness of coating is good.
Other performances of coating
Coating is within normal temperature (10 ~ 40 DEG C) surface drying time is 1 hour, and complete set time is within one week; Paint solidification postadhesion power reaches 1 grade, and water-fast, organic solvent-resistant; Can resisting salt fog corrosion in coating 24h; Pencil hardness test reaches 5H.
Embodiment 4
Prepared by coating
Mica and cobalt oxide are ground respectively in ball mill, and filter out mica and the cobalt oxide of granularity≤10um, the cobalt oxide getting 10 parts of granularities≤10um mica and 5 parts of granularity≤10um mixes, to add 5 parts of water and 90 parts of mass percents be again 22.5% modulus be 4.8 lithium silicate aqueous solution carry out mix and blend, measure with diameter measurement instrument, degree of scatter in mixture reaches below 10um, elimination insolubles.In whipping process, slowly add 1 part of γ-aminopropyl triethoxysilane (kh550) and 2 parts of aluminum phosphates, stir, obtain required coating.
The flexility of coating
The impact strength of coating is 40kgcm, and snappiness and the shock-resistance of coating are associated, and the impact strength of coating is high reflects that the snappiness of coating is good.
Other performances of coating
Coating is within normal temperature (10 ~ 40 DEG C) surface drying time is 1 hour, and complete set time is within one week; Paint solidification postadhesion power reaches 1 grade, and water-fast, organic solvent-resistant; Can resisting salt fog corrosion in coating 24h; Pencil hardness test reaches 5H.
Experimental example 5
Prepared by coating
Silica powder and titanium oxide are ground respectively in ball mill, and filter out silica powder and the titanium oxide of granularity≤10um, the titanium oxide getting 10 parts of granularities≤10um silica powder and 10 parts of granularity≤10um mixes, to add 5 parts of water and 90 parts of mass percents be again 22.5% modulus be 4.8 lithium silicate aqueous solution carry out mix and blend, measure with diameter measurement instrument, degree of scatter in mixture reaches below 10um, elimination insolubles.In whipping process, slowly add 1 part of γ-aminopropyl triethoxysilane (kh550) and 3 parts of aluminum phosphates, stir, obtain required coating.
The flexility of coating
The impact strength of coating is 40kgcm, and snappiness and the shock-resistance of coating are associated, and the impact strength of coating is high reflects that the snappiness of coating is good.
Other performances of coating
Coating is within normal temperature (10 ~ 40 DEG C) surface drying time is 1 hour, and complete set time is within one week; Paint solidification postadhesion power reaches 1 grade, and water-fast, organic solvent-resistant; Can resisting salt fog corrosion in coating 24h; Pencil hardness test reaches 5H.
Experimental example 6
Prepared by coating
Silica powder and titanium oxide are ground respectively in ball mill, and filter out silica powder and the titanium oxide of granularity≤10um, the titanium oxide getting 3 parts of granularities≤10um silica powder and 3 parts of granularity≤10um mixes, to add 2 parts of water and 90 parts of mass percents be again 30% modulus be 4 lithium silicate aqueous solution carry out mix and blend, measure with diameter measurement instrument, degree of scatter in mixture reaches below 10um, elimination insolubles.In whipping process, slowly add 2 parts of γ-aminopropyl triethoxysilanes (kh550) and 1 part of aluminum phosphate, stir, obtain required coating.
The flexility of coating
The shock-resistance of coating is 40kgcm, and snappiness and the shock-resistance of coating are associated, and the impact strength of coating is high reflects that the snappiness of coating is good.
Other performances of coating
Coating is within normal temperature (10 ~ 40 DEG C) surface drying is 1 hour time, and complete set time is within one week; Paint solidification postadhesion power reaches 1 grade, and water-fast, organic solvent-resistant; Can resisting salt fog corrosion in coating 24h; Pencil hardness test reaches 5H.
Experimental example 7
Prepared by coating
Silica powder and titanium oxide are ground respectively in ball mill, and filter out silica powder and the titanium oxide of granularity≤10um, the titanium oxide getting 10 parts of granularities≤10um silica powder and 10 parts of granularity≤10um mixes, to add 5 parts of water and 90 parts of mass percents be again 25% modulus be 8 lithium silicate aqueous solution carry out mix and blend, measure with diameter measurement instrument, degree of scatter in mixture reaches below 10um, elimination insolubles.In whipping process, slowly add 5 parts of γ-aminopropyl triethoxysilanes (KH550) and 5 parts of aluminum phosphates, stir, obtain required coating.
The flexility of coating
The impact strength of coating is 30kgcm, and snappiness and the shock-resistance of coating are associated, and the impact strength of coating is high reflects that the snappiness of coating is good.
Other performances of coating
Coating is within normal temperature (10 ~ 40 DEG C) surface drying is 1 hour time, and complete set time is within one week; Paint solidification postadhesion power reaches 1 grade, and water-fast, organic solvent-resistant; Can resisting salt fog corrosion in coating 24h; Pencil hardness test reaches 5H.
Experimental example 8
Prepared by coating
Glass-cermic powder and titanium oxide are ground respectively in ball mill, and filter out glass-cermic powder and the titanium oxide of granularity≤10um, the titanium oxide getting 10 parts of granularities≤10um glass-cermic powder and 10 parts of granularity≤10um mixes, to add 5 parts of water and 90 parts of mass percents be again 20% modulus be 10 lithium silicate aqueous solution carry out mix and blend, measure with diameter measurement instrument, degree of scatter in mixture reaches below 10um, elimination insolubles.In whipping process, slowly add 3 parts of γ-aminopropyl triethoxysilanes (kh550), 3 parts of aluminum phosphates and 1 part of cellulose acetate, stir, obtain required coating.
The flexility of coating
The impact strength of coating is 30kgcm, and snappiness and the shock-resistance of coating are associated, and the impact strength of coating is high reflects that the snappiness of coating is good.
Other performances of coating
Coating is within normal temperature (10 ~ 40 DEG C) surface drying is 1 hour time, and complete set time is within one week; Paint solidification postadhesion power reaches 1 grade, and water-fast, organic solvent-resistant; Can resisting salt fog corrosion in coating 24h; Pencil hardness test reaches 5H.
Experimental example 9
Prepared by coating
Coal clay and titanium oxide are ground respectively in ball mill, and filter out coal clay and the titanium oxide of granularity≤10um, the titanium oxide getting 10 parts of granularities≤10um coal clay and 10 parts of granularity≤10um mixes, to add 5 parts of water and 90 parts of mass percents be again 22.5% modulus be 4.8 lithium silicate aqueous solution carry out mix and blend, measure with diameter measurement instrument, degree of scatter in mixture reaches below 10um, elimination insolubles.In whipping process, slowly add 1 part of γ-aminopropyl triethoxysilane (KH550), 3 parts of silicon phosphates and 0.5 part of polyvinyl alcohol, stir, obtain required coating.
The flexility of coating
The impact strength of coating is 40kgcm, and snappiness and the shock-resistance of coating are associated, and the impact strength of coating is high reflects that the snappiness of coating is good.
Other performances of coating
Coating is within normal temperature (10 ~ 40 DEG C) surface drying is time 2 h, and complete set time is within one week; Paint solidification postadhesion power reaches 1 grade, and water-fast, organic solvent-resistant; Can resisting salt fog corrosion in coating 24h; Pencil hardness test reaches 5H.
Experimental example 10
Prepared by coating
Kaolin and titanium oxide are ground respectively in ball mill, and filter out kaolin and the titanium oxide of granularity≤10um, the titanium oxide getting 10 parts of granularities≤10um kaolin and 10 parts of granularity≤10um mixes, to add 5 parts of water and 90 parts of mass percents be again 22.5% modulus be 4.8 lithium silicate aqueous solution carry out mix and blend, measure with diameter measurement instrument, degree of scatter in mixture reaches below 10um, elimination insolubles.In whipping process, slowly add 3 parts of γ-aminopropyl triethoxysilanes (kh550), 3 parts of zinc oxide and 0.1 part of methylcellulose gum, stir, obtain required coating.
The flexility of coating
The impact strength of coating is 35kgcm, and snappiness and the shock-resistance of coating are associated, and the impact strength of coating is high reflects that the snappiness of coating is good.
Other performances of coating
Coating is within normal temperature (10 ~ 40 DEG C) surface drying is 1 hour time, and complete set time is within one week; Paint solidification postadhesion power reaches 1 grade, and water-fast, organic solvent-resistant; Can resisting salt fog corrosion in coating 24h; Pencil hardness test reaches 5H.
Coating flexibility detection method
Because contriver's condition is limited, replace snappiness test with the shock-resistance of coating, in above embodiment, shock-resistance test is all test in accordance with the following methods:
Paint paint film shock-resistance detects and is applicable to paint paint film shock strength mensuration, and namely the quality of weight falls within it on model and do not cause paint paint film to destroy the product representation of the large height of dispersion, units/kg cm.
One, paint film shock-resistance test material and equipment is painted:
Tinplate (about 50 × 120 × 0.2 ~ 0.3mm), 4 times of magnifying glasses and paint film impact test device.
Two, measuring method and step:
1. test condition: should carry out under 23 ± 2 DEG C of conditions with relative humidity (50 ± 5) %.
2. lie on the brill anvil of shock-testing machine by paint film test piece, the test piece position that is hit is no less than 15mm far from edge, and each impact edge must not be less than 15mm.
3. be fixed on by weight (height is specified by product standard or decides through consultation) on a certain height of slide cartridge, pressing control knob, makes weight freely fall on drift, impact test piece.
4. mention weight and take out test piece, paint film observed by 4 times of magnifying glasses has flawless, peeling phenomenon.
If 5. paint film has and breaks, reduce weight height 5cm, revision test, until paint film crack-free or peel off.
6. record weight and the height of weight.
7. same test plate (panel) carries out three tests.
Three, the judgment method of paint film shock-resistance is painted:
Observe paint film flawlesses, wrinkle with 4 times of magnifying glasses, the phenomenon such as to peel off, be namely judged to the shock resistance of this sample paint at a certain height.
Other performance test methods of coating
Namely coating surface drying time is surface drying time, adopts and blows cotton pellet method; Paint adhesion test adopts Crosshatch adhesion tester; Salt fog resistance, adopts the test of salt fog anti-corrosion test case; Hardness test adopts QHQ measuring pencil durometer.
Claims (2)
1. a silane coupler modified lithium silicate base coating, it is characterized in that, the weight part of its raw material consists of:
Described lithium silicate to be mass percent be 20 ~ 30% lithium silicate aqueous solution, the modulus of lithium silicate is 4 ~ 10, and described silane coupling agent contains amino;
Described filler is one or more in silica powder, glass-cermic powder, mica powder, kaolin, coal clay;
Described solidifying agent is one or more the mixing in aluminum phosphate, silicon phosphate, zinc oxide;
Described tensio-active agent is one or more in cellulose acetate, polyvinyl alcohol, methylcellulose gum.
2. the preparation method of silane coupler modified lithium silicate base coating as claimed in claim 1, is characterized in that, comprise the following steps:
(1) pigment and filler are mixed to get mixture, the granularity≤10um of pigment and filler;
(2) mixture that step (1) obtains is mixed with water and lithium silicate, obtained lithium silicate;
(3) in described lithium silicate, add silane coupling agent, tensio-active agent and solidifying agent, after mixing, namely make silane coupler modified lithium silicate base coating.
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| CN103333539A (en) * | 2013-05-28 | 2013-10-02 | 苏州绿创环保新材料有限公司 | Silicate-type inorganic aqueous high-temperature heat-resistant coating and preparation method thereof |
| CN103602107A (en) * | 2013-11-19 | 2014-02-26 | 无锡市虎皇漆业有限公司 | Water-based inorganic resin and preparation method thereof |
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2014
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| CN101709163A (en) * | 2009-10-28 | 2010-05-19 | 北京航空航天大学 | Organic/inorganic silicon hybridization water-based anti-corrosion paint applicable to magnesium alloy surface and preparation method thereof |
| CN102146225A (en) * | 2011-03-09 | 2011-08-10 | 华南理工大学 | Waterborne room-temperature self-curing inorganic zinc rich coating |
| CN103333539A (en) * | 2013-05-28 | 2013-10-02 | 苏州绿创环保新材料有限公司 | Silicate-type inorganic aqueous high-temperature heat-resistant coating and preparation method thereof |
| CN103602107A (en) * | 2013-11-19 | 2014-02-26 | 无锡市虎皇漆业有限公司 | Water-based inorganic resin and preparation method thereof |
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