CN102719120A - Environment-friendly high temperature-resistant inorganic insulated paint and preparation method thereof - Google Patents
Environment-friendly high temperature-resistant inorganic insulated paint and preparation method thereof Download PDFInfo
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- CN102719120A CN102719120A CN2012102197975A CN201210219797A CN102719120A CN 102719120 A CN102719120 A CN 102719120A CN 2012102197975 A CN2012102197975 A CN 2012102197975A CN 201210219797 A CN201210219797 A CN 201210219797A CN 102719120 A CN102719120 A CN 102719120A
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Abstract
The invention relates to environment-friendly high temperature-resistant inorganic insulated paint and a preparation method thereof and belongs to the field of preparation of coatings. The environment-friendly high temperature-resistant inorganic insulated paint consists of a component A and a component B, wherein the component A consists of the flowing raw materials in percentage by mass: 41 to 44 percent of silica sol, 18.5 to 19.8 percent of inorganic pigment, 5.3 to 6.3 percent of kaolin, 4.4 to 5.0 percent of mica powder, 2.2 to 3.0 percent of talcpowder, 22 to 24 percent of deionized water, and 2.1 to 2.2 percent of aid; and the component B consists of the following raw materials in percentage by mass: 1.0 to 1.2 percent of acetic anhydride and 98.8 to 99.0 percent of methyltrimethoxysilane. During use, the component A and the component B are stirred and mixed in a ratio and cured; and then a mixture is subjected to air spraying onto metal base materials such as aluminum alloy, stainless steel and the like which are treated. The paint has the advantages of environment-friendliness, high temperature resistance and insulativity, acid and alkali resistance, long normal temperature quality guarantee period, long construction time and the like, and can be cured at normal temperature.
Description
Technical field
The present invention relates to a kind of environment-friendly type thermostable inorganic insulation paint and preparation method, belong to the coating preparation field.
Background technology
Both at home and abroad insullac can be divided into organic insulation lacquer and inorganic insulation paint, is divided into 7 grades according to thermostability in use, and wherein C level thermostability is best, and temperature tolerance requires to reach more than 180 ℃.C level organic insulation lacquer usually with silicone resin, polyimide resin, polyphenylene oxide resin and polybenzimidazole resin etc. as high temperature resistant binder, add the inorganic color stuffing preparation.But because the temperature tolerance of organic resin sticker self is limited, be difficult in,, then need the filmogen of the higher sticker of temperature tolerance as insullac if satisfy such high temperature above life-time service under 350 ℃ of high temperature.In addition, these are that the agglutinating insullac overwhelming majority is solvent type with the organic resin.This does not meet the insullac development trend of low-carbon (LC), environmental protection with regard to having determined insullac commonly used.
At present, obtain day by day because of its hardness is big, high temperature resistant paying attention to the insullac of mineral binder bond as filmogen.(Chu Shuanjie, Zhai's mark, Dai Yuanyuan, Zhang Chongchang such as Chu Shuanjie.Non orientating silicon steel surface insulation coating; Material protection; 1998,31 (1): 19-21) having summed up with water-based phosphoric acid salt is sticker, adds colloidal silica, boric acid and chromic trioxide etc. and is prone to suction, poor adhesive force, the thick superfine defective in surface to improve the silicon steel coating; But the shock-resistant difference of coating and contain Toxic matter chromic trioxide, application is restricted.(Han Xu, Chen Min, Wang Yuehua such as Han Xu.Sol-gel method prepares high-temperature insulation coating, Dalian Polytechnic University's journal, 2008; 27 (2): 137-139) reported that with tetraethyl silicate and nitrate salt be precursor; Prepared high-temperature insulating paint with sol-gel method, but this insullac is short steady time, not environmental protection; Solidification value is high, just can obtain having the coating of good insulation performance under promptly needing 800 ℃.(Wang Lijun, Zhang Rongwei, Lu Wenming, Lu Mengnan such as Wang Lijun.The development of high-temperature insulation coating, coatings industry, 2005; 35 (10), 30-32) having reported a kind of is mineral binder bond with homemade boron glass, to be aided with silicone resin; Add color stuffing and process high-temperature insulating paint, this insullac will obtain high-temperature insulation coating, need be heated to 600 ℃; So just can make homemade mineral binder bond fusing film forming, organosilicon is decomposed, obtain the inorganic high-temperature resistant insulating coating.
Summary of the invention
The present invention is in order to solve deficiencies such as the existing solidification value height of prior art, not environmental protection; A kind of have environmental protection, high temperature resistant, good insulating, long quality-guarantee period, characteristic such as normal temperature solidified are provided, are applicable to the bi-component waterborne inorganic high-temperature resistant insullac and the preparation method of metallic surface.
A kind of environment-friendly type thermostable inorganic insulation paint, said insullac is made up of component A and B, and the mass ratio of component A and B is 100:37-40,
Component A, by mass percentage, be made up of following component:
Silicon sol: 41-44%
Mineral dye: 18.5-19.8%
Kaolin: 5.3-6.1%
Mica powder: 4.4-5.0%
Talcum powder: 2.1-3.0%
Deionized water: 22-24%
Auxiliary agent: 2.2-2.4%
B component, by mass percentage, form by following component:
Diacetyl oxide: 1.0-1.2%
Methyltrimethoxy silane: 98.8-99.0%
The preferred silicon sol of environment-friendly type thermostable inorganic insulation paint of the present invention is SiO
2Solid content is the alkaline silica sol of 30wt%.
Mineral dye according to the invention be chosen as the state of the art, the person skilled in the art can select suitable mineral dye according to the requirement to product colour, the mineral dye of preferred acid and alkali-resistance, high temperature resistant, good insulating.The pearly pigment that preferred said mineral dye is white titanium pigment, chrome green, cobalt blue or coated by titanium dioxide among the present invention.
The selection of auxiliary agent according to the invention and consumption are the state of the art, and the person skilled in the art can select proper auxiliary agent, confirm its proportioning and consumption according to the requirement to product performance.The mixture that auxiliary agent among the component A of insullac according to the invention preferably is made up of dispersion agent, sanitas, frostproofer, anti-settling agent, skimmer and pH regulator agent.
Dispersion agent of the present invention is preferably dispersion agent 5040; Sanitas is preferably sanitas Alex F-252; Frostproofer is preferably terepthaloyl moietie; Anti-settling agent is preferably HBR250 type Natvosol; Skimmer is preferably skimmer Foamaster 111 and the mixture of Foamaster 223 by mass ratio 1:1 composition; The pH regulator agent is preferably AMP95.
The particle diameter of environment-friendly type thermostable inorganic insulation paint preferred inorganic pigments of the present invention, talcum powder, kaolin and mica powder is the 600-1000 order.
Another object of the present invention provides the preparation method of above-mentioned environment-friendly type thermostable inorganic insulation paint.
A kind of preparation method of environment-friendly type thermostable inorganic insulation paint comprises following process step, and is as shown in Figure 1:
1. at first the auxiliary agent of deionized water, half amount is stirred 8-12min under the condition of 200r/min; Add mineral dye, kaolin, mica powder and talcum powder then, under the condition of 1000-1500r/min, carry out high speed dispersion, behind the stirring 30-40min; Mixing speed is reduced to 450-550r/min; And add silicon sol, remaining auxiliary agent, and continue to stir 50-70min, finally obtain the component A that pH is 9.3-9.5;
2. get diacetyl oxide and methyltrimethoxy silane and mix, stir, obtain B component.
3. component A and B component are stirred 40-60min according to the mass ratio of 100:37-40 under the condition of 300-500r/min, normal temperature slaking 12-24 hour then, obtain the environment-friendly type thermostable inorganic insulation paint.
Insullac of the present invention is solvent with water, the quality guaranteed period that under with an organic solvent situation not, can improve coating.The use of diacetyl oxide can be adjusted to acidity with the component A of alkalescence on the one hand, helps the hydrolysis of methyltrimethoxy silane, and diacetyl oxide can be used as the minor amount of water that siccative is removed methyltrimethoxy silane on the other hand, improves the quality guaranteed period of B component.The use of methyltrimethoxy silane; On the one hand because of facile hydrolysis under its normal temperature; The silanol base and the silicon sol generation crosslinking reaction that generate, the film forming properties of raising coating, the methyl molecule that links to each other with silicon in the methyltrimethoxy silane on the other hand is little; Silicone content is high, has largely improved the high-temperature insulation performance.Talcum powder uses has two aspect effects, and the one, the coefficient of expansion of adjusting insullac, the 2nd, the engineering time that can improve insullac greatly, make A, the mixed insullac of B viscosity no change within 7 days.
In the process for preparing, with component A and B mix, the purpose of slaking is more complete for what the methyltrimethoxy silane hydrolysis reaction was carried out, and then helps the better coating performance of obtained performance.The insullac that utilizes the method for the invention to be prepared from has environmental protection, high temperature resistant, long quality-guarantee period, normal temperature solidified, multiple advantage and characteristic such as the engineering time is long, is suitable for being applied on the metal base.
The invention has the advantages that:
1. the present invention is solvent with water, and silicon sol is a main film forming substance, and inorganic oxide is a color stuffing, and can self-vulcanizing, thereby coating has environmental protection, cost is low, technology is simple, safe and reliable advantage, is fit to a large amount of preparations and suitability for industrialized production.
The present invention with methyltrimethoxy silane as silica sol modified dose; Diacetyl oxide is regulated insullac to slightly acidic in component A, B stirring, maturing process; Promote the hydrolysis of methyltrimethoxy silane; The methyl alcohol of one of product generates and can avoid the coating premature gelationization simultaneously, and talcous in addition adding can make viscosity in 7 days, remain unchanged, but has prolonged the time of coating application greatly.
3. coating of the present invention is made up of A, two kinds of components of B; Not only avoided the normal organic solvent that uses of silane-modified silicon sol onepot coating; And having increased substantially quality guaranteed period of coating, the normal temperature quality guaranteed period can reach more than 8 months, can satisfy the needs of scale operation.
4. main film forming substance of the present invention, color stuffing all are high temperature resistant, the inorganics of anti-the insulation, thereby high temperature resistant, the anti-insulation of gained coating, the high temperature that coating can anti-500-600 ℃.
Description of drawings
Accompanying drawing 2 width of cloth of the present invention,
Fig. 1 is preparation technology's schema of component A;
Fig. 2 is preparation technology's schema of B component.
Embodiment
Following non-limiting example can make those of ordinary skill in the art more fully understand the present invention, but does not limit the present invention in any way.TP described in the following embodiment like no specified otherwise, is ordinary method; Said reagent and material like no specified otherwise, all can obtain from commercial sources, or can the ordinary method preparation.
Dispersion agent is selected dispersion agent 5040 for use among the following embodiment; Sanitas is selected sanitas Alex F-252 for use; Frostproofer is selected terepthaloyl moietie for use; Anti-settling agent is preferably used HBR250 type Natvosol; Skimmer selects for use skimmer Foamaster 111 and Foamaster 223 to add by mass ratio 1:1.Following skimmer, dispersion agent, sanitas, AMP95 are provided by extra large river stock company; Silicon sol is the 30wt% alkaline silica sol that Zhejiang Province Yuda Chemical Co., Ltd produces; Methyltrimethoxy silane is that Zhejiang Chemical Industry Science and Technology Group Co.,Ltd produces.
Embodiment 1 ~ 3
Adopt the technology of optimizing following in the instance: at first the auxiliary agent with deionized water, half amount stirs 10min under the condition of 200r/min; Add mineral dye, kaolin, mica powder and talcum powder then, under the condition of 1200r/min, carry out high speed dispersion, behind the stirring 30min; Mixing speed is reduced to 500r/min; And add silicon sol, remaining auxiliary agent, and continue to stir 60min, finally obtain the component A that pH is 9.3-9.5;
Get diacetyl oxide and methyltrimethoxy silane and mix, stir, obtain B component.
The said components A that configures and the B component mass ratio according to 100:37 (embodiment 1), 100:39 (embodiment 2), 100:40 (embodiment 3) is stirred under the condition of 300r/min; Churning time 60min; The normal temperature slaking is 20 hours then, finally obtains the insullac finished product.After this inorganic insulation paint finished product prepares, need in 7 days, use.Example formulations is seen table 1, and adjuvant used kind and consumption are seen table 2.
For the physics and chemistry and the insulating property of testing this insullac, adopt the aerial spraying method, on 120 * 50 * 1mm of sandblasting duraluminum or stainless steel plate, then self-vulcanizing 48 hours, or 120 ℃ of environment solidified 1 hour down with the finished product paint spraying.At last these sample coatings are tested, concrete result sees table 3, and wherein, embodiment 1 and 2 is an aluminum alloy base material, and embodiment 3 is a stainless steel substrate; Embodiment 1 is self-vulcanizing 48 hours, and embodiment 2 and 3 is 120 ℃ and solidified 1 hour.
Table 1 formulation for coating material
Component A is in 1000g, and B component is by selected mass ratio preparation
Auxiliary agent kind and consumption in table 2 instance, unit: g
The coating property of table 3 embodiment 1 ~ 3
Claims (6)
1. environment-friendly type thermostable inorganic insulation paint, it is characterized in that: said insullac is made up of component A and B, and the mass ratio of component A and B is 100:37-40,
Component A, by mass percentage, be made up of following component:
Silicon sol: 41-44%
Mineral dye: 18.5-19.8%
Kaolin: 5.3-6.3%
Mica powder: 4.4-5.0%
Talcum powder: 2.2-3.0%
Deionized water: 22-24%
Auxiliary agent: 2.1-2.2%
B component, by mass percentage, form by following component:
Diacetyl oxide: 1.0-1.2%
Methyltrimethoxy silane: 98.8-99.0%.
2. environment-friendly type thermostable inorganic insulation paint according to claim 1 is characterized in that: said silicon sol is SiO
2Solid content is the alkaline silica sol of 30wt%.
3. environment-friendly type thermostable inorganic insulation paint according to claim 1 is characterized in that: said mineral dye is the pearly pigment of white titanium pigment, chrome green, cobalt blue or coated by titanium dioxide.
4. environment-friendly type thermostable inorganic insulation paint according to claim 1 is characterized in that: the mixture that said auxiliary agent is made up of dispersion agent, sanitas, frostproofer, anti-settling agent, skimmer and pH regulator agent.
5. environment-friendly type thermostable inorganic insulation paint according to claim 1 is characterized in that: the particle diameter of said mineral dye, talcum powder, kaolin and mica powder is the 600-1000 order.
6. the preparation method of an environment-friendly type thermostable inorganic insulation paint is characterized in that: comprise following process step:
1. at first the auxiliary agent of deionized water, half amount is stirred 8-12min under the condition of 200r/min; Add mineral dye, kaolin, mica powder and talcum powder then, under the condition of 1000-1500r/min, carry out high speed dispersion, behind the stirring 30-40min; Mixing speed is reduced to 450-550r/min; And add silicon sol, remaining auxiliary agent, and continue to stir 50-70min, finally obtain the component A that pH is 9.3-9.5;
2. get diacetyl oxide and methyltrimethoxy silane and mix, stir, obtain B component;
3. component A and B component are stirred 40-60min according to the mass ratio of 100:37-40 under the condition of 300-500r/min, normal temperature slaking 12-24 hour then, obtain the environment-friendly type thermostable inorganic insulation paint.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214883A (en) * | 2013-05-14 | 2013-07-24 | 上海宜瓷龙新材料科技有限公司 | Toning method of ceramic coating |
| CN104312225A (en) * | 2014-11-10 | 2015-01-28 | 南车青岛四方机车车辆股份有限公司 | High-flexibility and high-glossiness inorganic coating and preparation method |
| CN104478393A (en) * | 2014-11-24 | 2015-04-01 | 上海宜瓷龙新材料股份有限公司 | Ceramic film coating for indoor decorative curtain wall of urban rail transit station |
| CN105588652A (en) * | 2015-12-15 | 2016-05-18 | 中国燃气涡轮研究院 | Air spraying-based turbine blade temperature measurement method |
| CN106280986A (en) * | 2016-08-29 | 2017-01-04 | 山东帝高漆业有限公司 | Double-component fire resistant paint and preparation method |
| CN107254202A (en) * | 2017-06-26 | 2017-10-17 | 湖南镭目科技有限公司 | A kind of aqueous inorganic paint identified automatically for high temp objects and preparation method thereof and the method identified automatically for high temp objects |
| CN110294947A (en) * | 2019-07-02 | 2019-10-01 | 中国科学院宁波材料技术与工程研究所 | High-temperature resistant coating and its preparation method and application for metal surface |
| CN111269593A (en) * | 2020-03-27 | 2020-06-12 | 广州番禺电缆集团有限公司 | Water-based inorganic antibacterial insulating paint and preparation method thereof |
| CN111826001A (en) * | 2019-03-28 | 2020-10-27 | 焕澄(上海)新材料科技发展有限公司 | Ultrahigh-insulation inorganic coating and preparation method thereof |
| CN112979295A (en) * | 2019-12-13 | 2021-06-18 | 宝武装备智能科技有限公司 | Silica sol combined pressing material for coke oven closed repair and preparation method thereof |
| CN116333591A (en) * | 2023-02-07 | 2023-06-27 | 雷索新材料(苏州)有限公司 | High-temperature flame-retardant insulating coating and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214883A (en) * | 2013-05-14 | 2013-07-24 | 上海宜瓷龙新材料科技有限公司 | Toning method of ceramic coating |
| CN104312225A (en) * | 2014-11-10 | 2015-01-28 | 南车青岛四方机车车辆股份有限公司 | High-flexibility and high-glossiness inorganic coating and preparation method |
| CN104478393A (en) * | 2014-11-24 | 2015-04-01 | 上海宜瓷龙新材料股份有限公司 | Ceramic film coating for indoor decorative curtain wall of urban rail transit station |
| CN105588652A (en) * | 2015-12-15 | 2016-05-18 | 中国燃气涡轮研究院 | Air spraying-based turbine blade temperature measurement method |
| CN106280986A (en) * | 2016-08-29 | 2017-01-04 | 山东帝高漆业有限公司 | Double-component fire resistant paint and preparation method |
| CN107254202A (en) * | 2017-06-26 | 2017-10-17 | 湖南镭目科技有限公司 | A kind of aqueous inorganic paint identified automatically for high temp objects and preparation method thereof and the method identified automatically for high temp objects |
| CN111826001A (en) * | 2019-03-28 | 2020-10-27 | 焕澄(上海)新材料科技发展有限公司 | Ultrahigh-insulation inorganic coating and preparation method thereof |
| CN110294947A (en) * | 2019-07-02 | 2019-10-01 | 中国科学院宁波材料技术与工程研究所 | High-temperature resistant coating and its preparation method and application for metal surface |
| CN112979295A (en) * | 2019-12-13 | 2021-06-18 | 宝武装备智能科技有限公司 | Silica sol combined pressing material for coke oven closed repair and preparation method thereof |
| CN111269593A (en) * | 2020-03-27 | 2020-06-12 | 广州番禺电缆集团有限公司 | Water-based inorganic antibacterial insulating paint and preparation method thereof |
| CN116333591A (en) * | 2023-02-07 | 2023-06-27 | 雷索新材料(苏州)有限公司 | High-temperature flame-retardant insulating coating and preparation method thereof |
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Application publication date: 20121010 |