CN1244655C - Paint of silicon-ceramic capable of resisting 900-1200 deg.C. organic high temp - Google Patents
Paint of silicon-ceramic capable of resisting 900-1200 deg.C. organic high temp Download PDFInfo
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- CN1244655C CN1244655C CN 200410014277 CN200410014277A CN1244655C CN 1244655 C CN1244655 C CN 1244655C CN 200410014277 CN200410014277 CN 200410014277 CN 200410014277 A CN200410014277 A CN 200410014277A CN 1244655 C CN1244655 C CN 1244655C
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Abstract
The present invention relates to an organosilicon-ceramic paint with the resistance of high temperatures of 900-1200 DEG C, which is formed by adopting organosilicon resin as base materials, matching high-temperature resistant pigment and mixing metal oxide, silicate class fillers and solvents. In addition, high-temperature protection to a basal body is realized by the conversion of a paint film from an organic type to an inorganic type in the condition of a high temperature. The present invention combines two technologies of organosilicon paint and inorganic high-temperature resistant paint. Thus, the organosilicon paint and the inorganic high-temperature resistant paint fully utilize the advantages and avoid the disadvantages, and mutually supplement performance so that organic-inorganic type paint which has the advantages of convenient painting, room temperature solidification and the resistance of high temperatures of 900-1200 DEG C is obtained. The present invention has the characteristics of simple painting technology, excellent performance of a painting layer, good resistance to high temperatures, excellent crack resistance to high temperatures, capability of recycle, etc.
Description
Technical field:
The present invention relates to a kind of anti-900～1200 ℃ of pyritous organosilicon-ceramic coatings.Be convenient, the normal temperature solidified organic-inorganic type high-temperature resistant coating of a kind of application.Be applicable to the metal substrates such as iron and steel, parts, the equipment that use under the high temperature, as High Temperature Furnaces Heating Apparatus, high temperature steam pipeline, engine, vapor pipe, heat exchanger, missile launcher etc.Belong to the coating formulation art.
Background technology:
Described in Chemical Industry Press's " tailor-(made) coating " chapter 3 first segment and Chinese patent CN1295102A " high temperature organosilicon paint ", along with the development of aviation, aerospace cause, the vital role of high-temperature resistant coating has caused the concern of countries in the world.High-temperature resistant coating is of a great variety, and is the most commonly used with organosilicon heat-resistant coating and refractory inorganic paint.Organosilicon heat-resistant coating has better heat-resisting, and (wherein pure silicone varnish can be anti-200～300 ℃, organosilicon be base-material add metal powder and suitable filler coatings formulated can anti-700 ℃ of following temperature), water tolerance, electrical insulating property and favorable mechanical performance, but hardness is low, flame resistivity is relatively poor.Inorganic type high-temperature resistant coating heat resisting temperature can reach 400～1200 ℃, even higher.Inorganic type high-temperature resistant coating flame resistivity is good, hardness height, but paint film is more crisp must be through being heated to comparatively high temps or other complicated pretreatment could be solidified, and also more strict to the processing requirements of ground, particularly its construction technology is for the very inconvenience of application of main equipment.
Summary of the invention:
The objective of the invention is organosilicon coating and two technology of refractory inorganic paint are combined, they are maximized favourable factors and minimized unfavourable ones, the application of additional properties, and then acquisition mutually is convenient, anti-900～1200 ℃ of pyritous organic-inorganic type coating of self-vulcanizing.
The object of the present invention is achieved like this: a kind of anti-900～1200 ℃ of pyritous organosilicon-ceramic coatings; it is to be base-material with the silicone resin; be equipped with high-temperature resisting pigment, metal oxide and silicates filler and solvent and form, thereby and under hot conditions, realize high temperature protection to the transformation of inorganic type matrix by organic type by paint film.
The weight proportion of each raw material of the present invention is: silicone resin 15.0～30.0%, and high-temperature resisting pigment 5.0～15.0%, metal oxide and silicate types filler 20.0～75.0%, surplus is a solvent, and the weight sum of each component is 100%.
Wherein the chemical component weight per-cent of metal oxide and silicate types filler is: SiO
230～60%; TiO
230～50%; B
2O
35～15%; CaO 5～15%; ZnO 5～10%; Na
2O 1～8%, and the weight sum of each component is 100%.
The present invention is the filmogen of self-vulcanizing with the silicone resin, the fracture of side chain organic radical only takes place when then utilizing the organopolysiloxane thermooxidizing behind the elevated temperature and the ruined hardly characteristics of silicon-oxygen backbone, add metal oxide and silicate types filler, make the silica chain portion of itself and residual inorganic nature under hot conditions, form the inorganic coating of class ceramic structure.
Product under the hot conditions after the thermolysis of organic property silica superpolymer and the silicates in the filler, metal oxide form the cancellated reaction of inorganic nature metal silica, the application that has taken into account conventional industrial heat-resisting organosilicon coating effectively is convenient, the film forming advantage of low-temperature curable and inorganic ceramic paint can be anti-pyritous premium properties more than 1000 ℃.Based on the high temperature resistant principle of the present invention's design, promptly filmogen raises with temperature and is transformed into inorganic type by organic type, and this coating belongs to organic-inorganic type high-temperature resistant coating.
Organosilicon polymer is an organopolysiloxane, and its structural formula as shown in Figure 1.Organosilicon polymer has inorganic structure and the organic group of Si-O-Si, and wherein main chain is made up of-Si-O-Si-chain link, and the Si in the chain has inorganic nature; The side chain direction, Si links to each other with organic group again, so Si shows organic property again.Studies show that organopolysiloxane the fracture of side chain organic radical only takes place, and the siloxanes of main chain is seldom destroyed when hot conditions is oxidized.After that is to say that the organopolysiloxane high temperature oxidation decomposes, remainder-Si-O-Si-chain, Si wherein is inorganic nature silicon.This result is for realizing design original intention of the present invention, and promptly paint film is transformed into inorganic type by organic type under hot conditions, and providing may.
The used filler of the present invention is metal oxide and silicate-type.The adding of these fillers is except that organic silicon coating being played the effect of reinforcement, in process of lapping and under the high temperature, also can produce certain chemical reaction between them, and then the inorganic nature silica chain that stays after the decomposition of anchoring organosilicon polymer high temperature oxidation, and form new inorganic type coating, finish paint film under hot conditions by the transformation of organic type to inorganic type.
Silicate filler, the surface has small amount of hydroxyl groups, can react with the functional group of organopolysiloxane, referring to Fig. 2.Studies show that the existence of metal oxide can play the catalytic Contact effect to above-mentioned reaction, and form the metal siloxane structure, see Fig. 4 with main chain-Si-O-Si-.
When organic silicone resin generation thermolysis, though the side chain organic radical of organopolysiloxane destroyed (main chain may generating unit divide fracture), but constituted new chain carrier at the position of organic radical fracture and the place of silica chain scission of link, can be further and silicate and reactive metal oxide, see Fig. 3 and Fig. 4, form the high temperature resistant inorganic coating that is similar to ceramic structure.
The preparation and the using method of the high temperature resistant organosilicon-ceramic coating of the present invention are as follows:
With pure silicone resin, high temperature resistant tinting pigment, metal oxide and silicate types filler and solvent, grind at a high speed, promptly be made into anti-900～1200 ℃ of pyritous organosilicon-ceramic coatings of the present invention.Before the application, to Svensk Standard SIS 055900 Sa2.5 level, or hand cleaning is to the St3 level, keeps the cleaning surfaces drying, no greasy dirt with the substrate surface sandblasting.Can adopt brushing or aerial spraying method directly high temperature resistant organosilicon-ceramic coating of the present invention to be coated with and be contained in workpiece surface, room temperature condition dry about 30 minutes down can use.
The present invention combines the film forming organosilicon heat-resistant coating of normal temperature curable effectively with anti-900～1200 ℃ of pyritous inorganic ceramic technology, make the two under system of the present invention, give full play to advantage separately, form a kind of application convenient, need not the pre-treatment of high temperature film forming, high temperature resistant and temp. variation resistant performance excellence, the good high-temperature resistant coating of sticking power.The present invention can realize in room temperature to the 1200 ℃ interval arbitrary temperature continuously or be interrupted temperature and become.Its sticking power is example with the steel ground, and deformation has taken place ground in the time of more than 700 ℃, but paint film is intact on it.
Compare with existing high-temperature resistant coating, coating of the present invention has following advantage:
1, coating process is simple.Coating of the present invention is directly brushed or be sprayed on substrate surface to be coated with, dry get final product under the room temperature need not to heat up and solidifies pre-treatment, is applicable to the large-scale device of the inconvenient application of traditional heat resisting coating especially.
2, coating performance excellence.The formed coating hardness height of the present invention, strong adhesion (steel substrate), wear resisting property is good.
3, resistance to elevated temperatures is good.Press GB1735-79 " paint film thermotolerance assay method " regulation, application the steel sheet of high-temperature resistant coating of the present invention (50 * 120 * 0.45～0.55mm), in 900 ℃ retort furnace, use 10h after, coating is intact, no considerable change.After the cooling, remove paint film, the steel surface under the paint film is brilliant white, and is not oxidized.But the coating that event coating of the present invention forms is secluding air at high temperature, for matrix provides good protective action.
4, You Yi high temperature splitting resistance.Under the hot conditions more than 700 ℃, (50 * 120 * 0.45～0.55mm) deformation (as bending) will take place the steel sheet of GB1735-79 " paint film thermotolerance assay method " regulation, but the coating of coating of the present invention formation firmly sticks to above the ground, not ftracture.No matter the coating that the present invention forms is directly to be entered 900～1200 ℃ environment by room temperature, or is to put into retort furnace at ambient temperature to be warming up to 900～1200 ℃ then, and coating is all intact, and the cooling back does not have cracking or foaming phenomenon.
5, can be recycled.Being coated with of forming of the present invention be placed in the retort furnace from room temperature rise to 1000 ℃ or reduce to room temperature, be warming up to 1000 ℃ or with interior arbitrary temperature, repeatedly several times, coating is intact again, do not have cracking or bubble with interior arbitrary temperature.
The present invention also can use silane coupling agent to reduce the solidification value of silicone resin, and it is at room temperature solidified.Coupling agent such as γ-aminopropyl triethyl silicane, γ-epoxy propyl ether base propyl trimethoxy silicane or γ-Qiu Jibingjisanjiayangjiguiwan.The usage quantity of coupling agent can be adjusted according to actual needs, is generally 2% of amount of resin.
Description of drawings:
Fig. 1 is an organopolysiloxane structural representation of the present invention.
Fig. 2 is silicate of the present invention and organopolysiloxane reaction synoptic diagram.
Fig. 3 is the reaction synoptic diagram of the silicon-oxygen backbone of silicate of the present invention and organopolysiloxane, and wherein M represents metal.
Fig. 4 is the reaction synoptic diagram of metal oxide of the present invention and poly organo main chain, and wherein M represents metal.
Embodiment:
Embodiment one: pure silicone resin 300kg, high temperature resistant tinting pigment 120kg, metal oxide and silicate types filler 350kg are mixed with solvent xylene 230kg, grind at a high speed, promptly be made into anti-900～1200 ℃ of pyritous organosilicon-ceramic coatings of the present invention.
Embodiment two: pure silicone resin 220kg, high temperature resistant tinting pigment 100kg, metal oxide and silicate types filler 500kg are mixed with solvent xylene 150kg, anti-settling agent 30kg, grind at a high speed, promptly be made into anti-900～1200 ℃ of pyritous organosilicon-ceramic coatings of the present invention.
Embodiment three: pure silicone resin 150kg, high temperature resistant tinting pigment 150kg, metal oxide and silicate types filler 600kg are mixed with solvent xylene 100kg, grind at a high speed, promptly be made into anti-900～1200 ℃ of pyritous organosilicon-ceramic coatings of the present invention.
Embodiment four: pure silicone resin 150kg, high temperature resistant tinting pigment 50kg, metal oxide and silicate types filler 700kg are mixed with solvent xylene 50kg, anti-sag agent 50kg, grind at a high speed, promptly be made into anti-800～1200 ℃ of pyritous organosilicon-ceramic coatings of the present invention.
Embodiment five: pure silicone resin 300kg, high temperature resistant tinting pigment 150kg, metal oxide and silicate types filler 200kg are mixed with solvent xylene 300kg, anti-settling agent 30kg, anti-sag agent 20kg, grind at a high speed, promptly be made into anti-900～1200 ℃ of pyritous organosilicon-ceramic coatings of the present invention.
Embodiment six:
Prepare high temperature resistant organosilicon-ceramic coating according to the chemical ingredients of high-temperature resistant coating of the present invention, be coated on the steel sheet (50 * 120 * 0.45～0.55mm) of GB1735-79 " paint film thermotolerance assay method " regulation, place retort furnace to rise to 500 ℃ respectively under the room temperature, 600 ℃, 700 ℃, 800 ℃, 900 ℃, 1000 ℃.(because serious deformation can take place in the thick steel plate of 0.45～0.55mm under condition more than 700 ℃, thick or the thicker steel plate of 1mm of same material is adopted in the test of suggestion more than 700 ℃), and compare test with the steel plate of uncoated coating of the present invention under the same conditions, the result is as follows:
The result shows that the high temperature resistant organosilicon-ceramic coating of the present invention has good high-temperature splitting resistance and stability, can secluding air, and for ground provides effective provide protection.
Embodiment seven:
Prepare high temperature resistant organosilicon-ceramic coating according to chemical ingredients of the present invention, be coated be contained on the 1mm Plate Steel after, cut the steel plate with high-temperature resistant coating coating of the present invention and the steel plate of any coating of application not respectively with oxy-acetylene flame.33.5 seconds consuming time of the steel plate of high-temperature resistant coating of the present invention that cut off application; The steel plate that cuts off not application only needs 9 seconds.This example verifies that further the high temperature resistant organosilicon-ceramic coating of the present invention has provide protection to ground.
Claims (7)
1, a kind of anti-900～1200 ℃ of pyritous organosilicon one ceramic coatings is characterized in that it is is base-material with the silicone resin, are equipped with high-temperature resisting pigment, metal oxide and silicates filler and solvent and form, and the weight proportion of each raw material is:
Silicone resin 15.0～30.0%
High-temperature resisting pigment 5.0～15.0%
Metal oxide and silicate types filler 20.0～75.0%
Surplus is a solvent
The weight sum of each component is 100%,
Wherein the chemical component weight proportioning of metal oxide and silicate types filler is:
SiO
2 30～60％
TiO
2 30～50％
B
2O
3 5～15％
CaO 5～15％
ZnO 5～10％
Na
2O 1～8％
The weight sum of each component is 100%.
2, a kind of anti-900～1200 ℃ of pyritous organosilicon-ceramic coatings according to claim 1 is characterized in that also being added with in the raw material auxiliary agent.
3, a kind of anti-900～1200 ℃ of pyritous organosilicon-ceramic coatings according to claim 2 is characterized in that auxiliary agent has anti-settling agent and/or anti-sag agent in the raw material.
4, a kind of anti-900～1200 ℃ of pyritous organosilicon-ceramic coatings according to claim 3 is characterized in that the dosage of auxiliary agent is no more than 5% of raw material total amount.
5, a kind of anti-900～1200 ℃ of pyritous organosilicon-ceramic coatings according to claim 1 is characterized in that adding in the coating silane coupling agent.
6, a kind of anti-900～1200 ℃ of pyritous organosilicon-ceramic coatings according to claim 5 is characterized in that silane coupling agent is γ-aminopropyl triethyl silicane or γ-epoxy propyl ether base propyl trimethoxy silicane, γ-Qiu Jibingjisanjiayangjiguiwan.
7, a kind of anti-900～1200 ℃ of pyritous organosilicon-ceramic coatings according to claim 6, the usage quantity that it is characterized in that coupling agent is 1～3% of a silicone resin amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014277 CN1244655C (en) | 2004-03-11 | 2004-03-11 | Paint of silicon-ceramic capable of resisting 900-1200 deg.C. organic high temp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014277 CN1244655C (en) | 2004-03-11 | 2004-03-11 | Paint of silicon-ceramic capable of resisting 900-1200 deg.C. organic high temp |
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|---|---|
| CN1560157A CN1560157A (en) | 2005-01-05 |
| CN1244655C true CN1244655C (en) | 2006-03-08 |
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| CN 200410014277 Expired - Fee Related CN1244655C (en) | 2004-03-11 | 2004-03-11 | Paint of silicon-ceramic capable of resisting 900-1200 deg.C. organic high temp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107868608A (en) * | 2017-12-01 | 2018-04-03 | 马鞍山市鑫龙特钢有限公司 | A kind of preparation method of carbon steel high temperature resistance to oxidation coating |
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| CN101096485B (en) * | 2006-06-29 | 2010-06-09 | 彭文表 | Normal temperature self-drying temperature-resistant paint and preparation method thereof |
| CN101805561B (en) * | 2010-05-05 | 2013-11-27 | 哈尔滨工业大学 | Preparation method of high-radiation energy-saving coating on metal surface |
| CN102464939B (en) * | 2010-11-18 | 2013-08-21 | 贵州航天风华精密设备有限公司 | High-temperature-resistant heat-proof paint and preparation and use methods thereof |
| CN103122209B (en) * | 2013-02-06 | 2015-06-17 | 江阴市大阪涂料有限公司 | High temperature resistant combustion-gas stream coating for rocket launching tower and diversion trench |
| CN104419321A (en) * | 2013-08-30 | 2015-03-18 | 江阴市大阪涂料有限公司 | Solvent-free high-temperature resistant coating for high temperature protection on warship components |
| CN103694752A (en) * | 2013-11-29 | 2014-04-02 | 安徽祈艾特电子科技有限公司 | Organic-silicon heat-resistant paint |
| CN103740272A (en) * | 2013-12-25 | 2014-04-23 | 苏州市邦成电子科技有限公司 | High-temperature-resisting coating for metal and preparation method thereof |
| CN103773231A (en) * | 2014-01-20 | 2014-05-07 | 南通华新环保设备工程有限公司 | High-temperature-resistant anti-crack coating for iron and steel equipment and preparation method thereof |
| CN106752913A (en) * | 2016-12-14 | 2017-05-31 | 张学健 | A kind of high-temperature resistant coating |
| EP3564200A1 (en) | 2018-05-04 | 2019-11-06 | Merck Patent GmbH | Ceramic colours |
| CN108774462B (en) * | 2018-06-08 | 2020-08-07 | 湖南航天三丰科工有限公司 | Room-temperature-curing high-temperature-resistant anticorrosive coating and preparation method thereof |
| CN109796794A (en) * | 2019-01-24 | 2019-05-24 | 江苏金陵特种涂料有限公司 | Organic-inorganic fire-resistant anticorrosion paint based on graphene and preparation method thereof |
| CN113214739A (en) * | 2021-06-22 | 2021-08-06 | 哈尔滨工业大学 | High-temperature-resistant organic silicon coating doped with divalent metal zirconium salt and preparation method thereof |
| CN113683954B (en) * | 2021-09-09 | 2022-11-15 | 深圳清研皓隆科技有限公司 | Heating coating for electronic cigarette heating tube, preparation method of heating coating and electronic cigarette |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107868608A (en) * | 2017-12-01 | 2018-04-03 | 马鞍山市鑫龙特钢有限公司 | A kind of preparation method of carbon steel high temperature resistance to oxidation coating |
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