CN104672956A - Environmentally-friendly high temperature-resistant anticorrosion paint and preparation method thereof - Google Patents
Environmentally-friendly high temperature-resistant anticorrosion paint and preparation method thereof Download PDFInfo
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- CN104672956A CN104672956A CN201310612578.8A CN201310612578A CN104672956A CN 104672956 A CN104672956 A CN 104672956A CN 201310612578 A CN201310612578 A CN 201310612578A CN 104672956 A CN104672956 A CN 104672956A
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Abstract
The invention relates to the technical field of chemical paint and especially relates to environmentally-friendly high temperature-resistant anticorrosion paint and a preparation method thereof. The environmentally-friendly high temperature-resistant anticorrosion paint comprises, by weight, 70-85 parts of modified nanometer silica, 15-30 parts of modified sol, 8-12 parts of a modified high temperature-resistant pigment, 3-8 parts of mica iron oxide, 3-5 parts of fumed silica, 0.1-1 part of a dispersant and 5-10 parts of water. The preparation method of the environmentally-friendly high temperature-resistant anticorrosion paint comprises the following steps of 1, modified nanometer silica preparation, 2, modified sol preparation, 3, modified high temperature-resistant pigment preparation and 4, mixing. The environmentally-friendly high temperature-resistant anticorrosion paint can resist a high temperature of 800 DEG C or more and has corrosion resistance superior to those of the traditional organosilicon and inorganic silicon high temperature-resistant materials.
Description
Technical field
The present invention relates to technical field of chemical paint, particularly relate to a kind of protective system and preparation method.
Background technology
Along with developing rapidly of the industry such as Aeronautics and Astronautics, the energy, chemical industry, the performance requriements for equipment high-temperaure coating is also more and more higher, requires at high temperature still to have excellent physical mechanical and antiseptic property.
At present, commercially available fire-resistant anticorrosion paint is mainly divided into inorganic and organosilicon two class.The resistance toheat of inorganic high-temperature resistant protective system is good, generally can tolerate the high temperature of 400 DEG C ~ 1300 DEG C, but there is film crisp easy to crack, to the performance deficiency of the substrate adhesion such as metal, plastics difference.Adopt the nano silicon of high-module (3.0 ~ 4.5) paint film appearance can be improved to a certain extent, but it still there will be spot phenomenon under high bake more than 800 DEG C.
In addition, the heat resisting temperature of existing organic silicon high-temperature protective system is many lower than 400 DEG C, and its antiseptic property is poor, is difficult to the harsh place being applied to some higher temperatures.
Summary of the invention
The object of the invention is to, provide a kind of environment-friendly type thermostable protective system, to solve the problems of the technologies described above.
Another object of the present invention is to, provide a kind of preparation method of environment-friendly type thermostable protective system, to solve the problems of the technologies described above.
Technical problem solved by the invention can realize by the following technical solutions:
A kind of environment-friendly type thermostable protective system, it is characterized in that, adopt the coating raw material of following parts by weight to make: 70 parts of-85 parts of modified manometer silicon dioxides, 15 parts-30 parts modification melten gels, 8 parts-12 parts modified, high temperature resistant pigment, 3 parts of-8 parts of iron micas, 3 parts of-5 parts of gas-phase silicas, the dispersion agent of 0.1 part-1 part and 5 parts of-10 parts of water.
Often kind of feed particles particle diameter in described coating raw material is 10 μm ~ 200 μm.
Described modified manometer silicon dioxide adopts nano silicon and silane coupling agent to make, and described nano silicon is the one in potassium silicate or lithium silicate, and described silane coupling agent is the one in KH550 or KH560.
The modulus that described nano silicon adopts is 5.1-6.1.
Described modification melten gel adopts colloidal sol, ethanol-water mixed solvent and silane coupling agent to make, and described colloidal sol is the one in silicon sol or Alumina gel, and described silane coupling agent is the one in KH550 or KH560.
Described modified, high temperature resistant pigment adopts high-temperature resisting pigment and silane coupling agent to make, described high-temperature resisting pigment is that ferromanganese is black, copper-chrome black, iron oxide black or graphite black in one, described silane coupling agent is the one in KH550 or KH560.
The water-based nano silicon dioxide that present invention employs high-module (5.1-6.1) as coating raw material, because its coating density is high, good film-forming property and give its more excellent antiseptic property.The paint film be made up of the present invention is through the high bake of 800 DEG C, there is not uneven or spot phenomenon, from and the performance of the silicon-dioxide fire-resistant anticorrosion paint that effectively overcomes conventional inorganic fire-resistant anticorrosion paint and common high-module (3.0-4.5) not enough.
A preparation method for environment-friendly type thermostable protective system, is characterized in that, comprises the steps:
1) making of modified manometer silicon dioxide: by nanosilica solution and silane coupling agent according to 100:(3-5) mass ratio, stirs 1h-3h, obtains modified manometer silicon dioxide;
2) making of modification sol: by colloidal sol: mixed solvent (alcohol-water) is 1:1 according to volume ratio, and ultrasonic disperse stirs 20 minutes-40 minutes; Be placed on subsequently in thermostat water bath, when being warming up to 70 DEG C-90 DEG C, then add the silane coupling agent of the 5%-20% by melten gel quality, after constant temperature stirring reaction 23h-25h, obtain modification sol;
3) making of modified, high temperature resistant pigment: by high-temperature resisting pigment and silane coupling agent according to 100:(5-25) mass ratio, obtain modified, high temperature resistant pigment after stirring 1h-3h;
4) mix: by step 1)-3) in obtain modified manometer silicon dioxide, modification sol, modified, high temperature resistant pigment and iron mica, gas-phase silica, dispersion agent, water, be after the high speed dispersor mixing of 800rpm/min ~ 1600rpm/min by rotating speed, obtain water-based high-temperature resistant anticorrosive coating.
Nanosilica solution in step 1) adopts modulus to be the nanosilica solution of 5.1 ~ 6.1.Described nanosilica solution is the one in potassium silicate or lithium silicate, and described silane coupling agent is the one in KH550 or KH560.
In step 1), adopt the there-necked flask that agitator is housed, nanosilica solution and silane coupling agent are added in there-necked flask successively, stir 2h, obtain modified manometer silicon dioxide.
Step 2) in, described colloidal sol is the one in silicon sol or Alumina gel, and described silane coupling agent is the one in KH550 or KH560.
Step 2) in, adopt the four-hole boiling flask that agitator, reflux condensing tube, thermometer are housed, colloidal sol and ethanol-water mixed solvent are added in four-hole boiling flask successively, ultrasonic disperse stirs 30 minutes, be placed on subsequently in thermostat water bath, be warming up to 80 DEG C, then add the silane coupling agent of melten gel quality 5% ~ 20%, after constant temperature stirring reaction 24h, obtain modification sol.
In step 3), described high-temperature resisting pigment is that ferromanganese is black, copper-chrome black, iron oxide black or graphite black in one, described silane coupling agent is the one in KH550 or KH560.
In step 3), adopt the there-necked flask that agitator is housed, high-temperature resisting pigment and silane coupling agent are added in there-necked flask successively, after stirring 2h, obtain modified, high temperature resistant pigment.
In step 4), described water-based high-temperature resistant anticorrosive coating comprises 70 parts of-85 parts of modified manometer silicon dioxides, 15 parts-30 parts modification melten gels, 8 parts-12 parts modified, high temperature resistant pigment, 3 parts of-8 parts of iron micas, 3 parts of-5 parts of gas-phase silicas, the dispersion agent of 0.1 part-1 part and 5 parts of-10 parts of water.
In step 4), the coating raw material grain diameter in described water-based high-temperature resistant anticorrosive coating is 10 μm ~ 200 μm.
The present invention adopts above-mentioned preparation method, and without the need to additionally adding toxic organic solvents in making processes, become Diamond Search discharge, belongs to environmental type.Traditional water-borne coatings can only store about 6 months, and the single-component system of the aqueous high-temperature-resistant coating system water-based that the present invention makes, the quality guaranteed period is 1 year.
Beneficial effect: owing to adopting technique scheme, adopts the fire-resistant anticorrosion paint made of the present invention can resistance to more than 800 DEG C high temperature, and antiseptic property is better than traditional organosilicon and inorganic silicon high-temperature resistant coating.
Accompanying drawing explanation
Fig. 1 is fabrication processing figure of the present invention.
Embodiment
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, setting forth the present invention further below in conjunction with concrete diagram.
A kind of environment-friendly type thermostable protective system, adopts the coating raw material of following parts by weight to make: 70 parts of-85 parts of modified manometer silicon dioxides, 15 parts-30 parts modification melten gels, 8 parts-12 parts modified, high temperature resistant pigment, 3 parts of-8 parts of iron micas, 3 parts of-5 parts of gas-phase silicas, the dispersion agent of 0.1 part-1 part and 5 parts of-10 parts of water.
Modified manometer silicon dioxide adopts nano silicon and silane coupling agent to make, and nano silicon is the one in potassium silicate or lithium silicate, and the modulus that nano silicon adopts is 5.1-6.1.
Modification melten gel adopts colloidal sol, ethanol-water mixed solvent and silane coupling agent to make, and colloidal sol is the one in silicon sol or Alumina gel.
Modified, high temperature resistant pigment adopts high-temperature resisting pigment and silane coupling agent to make, high-temperature resisting pigment is that ferromanganese is black, copper-chrome black, iron oxide black or graphite black in one.
Often kind of feed particles particle diameter in coating raw material is 10 μm ~ 200 μm.The silane coupling agent adopted in coating raw material is the one in KH550 or KH560.
A preparation method for environment-friendly type thermostable protective system, comprises the steps:
1) making of modified manometer silicon dioxide: adopt the there-necked flask that agitator is housed, being that 5.1 ~ 6.1 nanosilica solution and silane coupling agent are according to 100:(3-5 by modulus) mass ratio adds in there-necked flask successively, stir 1h-3h, obtain modified manometer silicon dioxide.Nanosilica solution is the one in potassium silicate or lithium silicate, and silane coupling agent is the one in KH550 or KH560.
2) making of modification sol: adopt the four-hole boiling flask that agitator, reflux condensing tube, thermometer are housed, by colloidal sol: ethanol-water mixed solvent is that 1:1 adds in four-hole boiling flask successively according to volume ratio, and ultrasonic disperse stirs 20 minutes-40 minutes.Be placed on subsequently in thermostat water bath, when being warming up to 70 DEG C-90 DEG C, then add the silane coupling agent of the 5%-20% by melten gel quality, after constant temperature stirring reaction 23h-25h, obtain modification sol.Colloidal sol is the one in silicon sol or Alumina gel, and silane coupling agent is the one in KH550 or KH560.
3) making of modified, high temperature resistant pigment: adopt and the there-necked flask of agitator is housed, by high-temperature resisting pigment and silane coupling agent according to 100:(5-25) mass ratio add successively in there-necked flask, obtain modified, high temperature resistant pigment after stirring 1h-3h.High-temperature resisting pigment is that ferromanganese is black, copper-chrome black, iron oxide black or graphite black in one, silane coupling agent is the one in KH550 or KH560.
4) mix: by step 1)-3) in obtain modified manometer silicon dioxide, modification sol, modified, high temperature resistant pigment and iron mica, gas-phase silica, dispersion agent, water, be after the high speed dispersor mixing of 800rpm/min ~ 1600rpm/min by rotating speed, obtain water-based high-temperature resistant anticorrosive coating.
Water-based high-temperature resistant anticorrosive coating comprises following coating raw material: 70 parts of-85 parts of modified manometer silicon dioxides, 15 parts-30 parts modification melten gels, 8 parts-12 parts modified, high temperature resistant pigment, 3 parts of-8 parts of iron micas, 3 parts of-5 parts of gas-phase silicas, the dispersion agent of 0.1 part-1 part and 5 parts of-10 parts of water.The grain diameter of coating raw material is 10 μm ~ 200 μm.
Embodiment one:
(1) be equipped with in the there-necked flask of agitator in one, according to the mass ratio of 100:3, add nanometer potassium silicate solution and the coupling agent KH550 of modulus 5.1 successively, after high-speed stirring 2h, obtain modified manometer silicon dioxide.
(2) in the four-hole boiling flask that agitator, reflux condensing tube, thermometer are housed, volume ratio 1:1 adds silicon sol and ethanol-water mixed solvent successively, and ultrasonic disperse stirs 30 minutes.Be placed on subsequently in thermostat water bath, be warming up to 80 DEG C, then add the coupling agent KH560 of melten gel quality 10%, after constant temperature stirring reaction 24h, obtain modification sol.
(3) be equipped with in the there-necked flask of agitator in one, add iron oxide black and coupling agent KH550 successively according to the mass ratio of 100:5, after high-speed stirring 2h, obtain modified oxidized iron oxide black.
(4) by above-mentioned steps (1) gained modified manometer silicon dioxide 70 parts, step (2) gained modification melten gel 15 parts, step (3) gained modified oxidized iron black 8 parts and iron mica 3 parts, gas-phase silica 5 parts, dispersion agent 0.5 part, 5 parts, water, be after the high speed dispersor mixing of 800rpm/min by rotating speed, obtain water-based high-temperature resistant anticorrosive coating.
Embodiment two:
By in the step (1) of embodiment one, replace the potassium silicate of modulus 5.1 with the lithium silicate of modulus 6.1;
By in the step (2) of embodiment one, replace the KH560 of 10% with the KH550 of mass ratio 5%;
By in the step (3) of embodiment one, with the black replacement iron oxide black of ferromanganese, replace the KH550 of 5% with the KH560 of mass ratio 25%;
The step of rest part is all identical with embodiment one with technique, obtains water-based high-temperature resistant anticorrosive coating.
Embodiment three:
By in the step (1) of embodiment one, replace the potassium silicate of modulus 5.1 with the lithium silicate of modulus 5.6;
By in the step (3) of embodiment one, only replace iron oxide black with copper-chrome black;
By in the step (4) of embodiment one, the modified manometer silicon dioxide added is 85 parts, modification melten gel is 30 parts, Modified Cu chrome black is 12 parts;
The step of rest part is all identical with embodiment two with technique, obtains water-based high-temperature resistant anticorrosive coating.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. an environment-friendly type thermostable protective system, it is characterized in that, adopt the coating raw material of following parts by weight to make: 70 parts of-85 parts of modified manometer silicon dioxides, 15 parts-30 parts modification melten gels, 8 parts-12 parts modified, high temperature resistant pigment, 3 parts of-8 parts of iron micas, 3 parts of-5 parts of gas-phase silicas, the dispersion agent of 0.1 part-1 part and 5 parts of-10 parts of water.
2. a kind of environment-friendly type thermostable protective system according to claim 1, is characterized in that, often kind of feed particles particle diameter in described coating raw material is 10 μm ~ 200 μm.
3. a kind of environment-friendly type thermostable protective system according to claim 1, it is characterized in that, described modified manometer silicon dioxide adopts nano silicon and silane coupling agent to make, described nano silicon is the one in potassium silicate or lithium silicate, and described silane coupling agent is the one in KH550 or KH560;
The modulus that described nano silicon adopts is 5.1-6.1.
4. a kind of environment-friendly type thermostable protective system according to claim 1,2 or 3, it is characterized in that, described modification melten gel adopts colloidal sol, ethanol-water mixed solvent and silane coupling agent to make, described colloidal sol is the one in silicon sol or Alumina gel, and described silane coupling agent is the one in KH550 or KH560.
5. a kind of environment-friendly type thermostable protective system according to claim 4, it is characterized in that, described modified, high temperature resistant pigment adopts high-temperature resisting pigment and silane coupling agent to make, described high-temperature resisting pigment is that ferromanganese is black, copper-chrome black, iron oxide black or graphite black in one, described silane coupling agent is the one in KH550 or KH560.
6. a preparation method for environment-friendly type thermostable protective system, is characterized in that, comprises the steps:
1) making of modified manometer silicon dioxide: by nanosilica solution and silane coupling agent according to 100:(3-5) mass ratio, stirs 1h-3h, obtains modified manometer silicon dioxide;
2) making of modification sol: by colloidal sol: ethanol-water mixed solvent is 1:1 according to volume ratio, and ultrasonic disperse stirs 20 minutes-40 minutes;
Be placed on subsequently in thermostat water bath, when being warming up to 70 DEG C-90 DEG C, then add the silane coupling agent of the 5%-20% by melten gel quality, after constant temperature stirring reaction 23h-25h, obtain modification sol;
3) making of modified, high temperature resistant pigment: by high-temperature resisting pigment and silane coupling agent according to 100:(5-25) mass ratio, obtain modified, high temperature resistant pigment after stirring 1h-3h;
4) mix: by step 1)-3) in obtain modified manometer silicon dioxide, modification sol, modified, high temperature resistant pigment and iron mica, gas-phase silica, dispersion agent, water, be after the high speed dispersor mixing of 800rpm/min ~ 1600rpm/min by rotating speed, obtain water-based high-temperature resistant anticorrosive coating.
7. the preparation method of a kind of environment-friendly type thermostable protective system according to claim 6, is characterized in that, the nanosilica solution in step 1) adopts modulus to be the nanosilica solution of 5.1 ~ 6.1;
Described nanosilica solution is the one in potassium silicate or lithium silicate, and described silane coupling agent is the one in KH550 or KH560;
In step 1), adopt the there-necked flask that agitator is housed, nanosilica solution and silane coupling agent are added in there-necked flask successively, stir 2h, obtain modified manometer silicon dioxide.
8. the preparation method of a kind of environment-friendly type thermostable protective system according to claim 6, is characterized in that, step 2) in, described colloidal sol is the one in silicon sol or Alumina gel, and described silane coupling agent is the one in KH550 or KH560;
Step 2) in, adopt the four-hole boiling flask that agitator, reflux condensing tube, thermometer are housed, colloidal sol and ethanol-water mixed solvent are added in four-hole boiling flask successively, ultrasonic disperse stirs 30 minutes, be placed on subsequently in thermostat water bath, be warming up to 80 DEG C, then add the silane coupling agent of melten gel quality 5% ~ 20%, after constant temperature stirring reaction 24h, obtain modification sol.
9. the preparation method of a kind of environment-friendly type thermostable protective system according to claim 6, it is characterized in that, in step 3), described high-temperature resisting pigment is that ferromanganese is black, copper-chrome black, iron oxide black or graphite black in one, described silane coupling agent is the one in KH550 or KH560;
In step 3), adopt the there-necked flask that agitator is housed, high-temperature resisting pigment and silane coupling agent are added in there-necked flask successively, after stirring 2h, obtain modified, high temperature resistant pigment.
10. the preparation method of a kind of environment-friendly type thermostable protective system according to claim 6, it is characterized in that, in step 4), described water-based high-temperature resistant anticorrosive coating comprises 70 parts of-85 parts of modified manometer silicon dioxides, 15 parts-30 parts modification melten gels, 8 parts-12 parts modified, high temperature resistant pigment, 3 parts of-8 parts of iron micas, 3 parts of-5 parts of gas-phase silicas, the dispersion agent of 0.1 part-1 part and 5 parts of-10 parts of water;
In step 4), the coating raw material grain diameter in described water-based high-temperature resistant anticorrosive coating is 10 μm ~ 200 μm.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105670351A (en) * | 2016-04-26 | 2016-06-15 | 黄河科技学院 | Environment-friendly anti-radiation high-temperature resistant coating and preparation method thereof |
| CN107880597A (en) * | 2017-11-18 | 2018-04-06 | 张晓娟 | A kind of metal die high temperature resistant processing method |
| CN108441002A (en) * | 2018-03-30 | 2018-08-24 | 深圳砺剑博纳科技有限公司 | The preparation method of refractory inorganic paint and refractory inorganic paint |
| CN116285602A (en) * | 2023-03-28 | 2023-06-23 | 南京信息工程大学 | Aluminum alloy surface temperature-resistant corrosion-resistant coating and preparation method thereof |
-
2013
- 2013-11-26 CN CN201310612578.8A patent/CN104672956A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105670351A (en) * | 2016-04-26 | 2016-06-15 | 黄河科技学院 | Environment-friendly anti-radiation high-temperature resistant coating and preparation method thereof |
| CN107880597A (en) * | 2017-11-18 | 2018-04-06 | 张晓娟 | A kind of metal die high temperature resistant processing method |
| CN108441002A (en) * | 2018-03-30 | 2018-08-24 | 深圳砺剑博纳科技有限公司 | The preparation method of refractory inorganic paint and refractory inorganic paint |
| CN116285602A (en) * | 2023-03-28 | 2023-06-23 | 南京信息工程大学 | Aluminum alloy surface temperature-resistant corrosion-resistant coating and preparation method thereof |
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Application publication date: 20150603 |