CN1621467A - High temperature resistant chrome-containing organic silicon paint - Google Patents
High temperature resistant chrome-containing organic silicon paint Download PDFInfo
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- CN1621467A CN1621467A CN 200310119266 CN200310119266A CN1621467A CN 1621467 A CN1621467 A CN 1621467A CN 200310119266 CN200310119266 CN 200310119266 CN 200310119266 A CN200310119266 A CN 200310119266A CN 1621467 A CN1621467 A CN 1621467A
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Abstract
The high temperature chromium containing organosilicon paint contains organosilicon resin, proper diluent, curing agent and filming agent, and features the added chromium oxide powder in the amount of 1.0-400 wt% of solid organosilicon resin. According to different use conditions, the oxide of Si, Mg, Al, Ni and other metals or natural mineral may be added. After being painted on to stainless steel sheet and cured, and through high temperature treatment at 900 deg.c for 3 hr, the coating maintains level, firm and no crack. Therefore, the present invention is one ideal kind of high temperature resistant paint and may be also used as high temperature adhesive and sealing material.
Description
Technical field:
The present invention relates to coating technology, a kind of high temperature organosilicon paint that contains chromium is provided especially.
Background technology:
Can curing under lower temperature, good film-forming property, good corrosion resistance, can resistant to elevated temperatures coating be the problem that people explore again always.Silicone resin, because the constructional feature of himself, thereby have extremely excellent characteristic, more and more be subject to people's attention.Silicone resin is its main chain with siloxane bond, and the Si-O bond polarity is big, to company hydrocarbyl group played shielding effect, improved its oxidative stability, the organosilicon surface, back that is heated generated-protective layer of Si-O-Si-chain, alleviated the influence to superpolymer inside.Make organosilicon have excellent thermotolerance and weathering resistance, thereby be widely used in industries such as building, electronics, automobile, medical treatment, demonstrate fabulous application prospect.Organosilicon heat-resistant coating is exactly one of them example.Along with the develop rapidly of modern science technology, in aviation, space flight, electronics in the high-tech areas such as machinery, has proposed more and more higher requirement to the thermotolerance of coating.Some domestic scientific research institutions have also carried out a large amount of research to it, make the use temperature of organosilicon heat-resistant coating reach 500 ℃ and 600 ℃.As: Northwestern Polytechnical University, northern coatings industry studying and designing institute.Patent CN 1295102A high temperature organosilicon paint.
Summary of the invention:
The object of the present invention is to provide a kind of heatproof at 800-900 ℃ even higher organosilicon heat-resistant coating to satisfy the needs of scientific experiment.
The invention provides a kind of chromium high temperature organosilicon paint that contains, with silicone resin, adding suitable thinner, solidifying agent is membrane-forming agent, it is characterized in that: be the physically modified material with the chromium sesquioxide, in the silicone resin solid content, the add-on of chromium sesquioxide powder is a 1.0-400% weight.
The present invention contains in the chromium high temperature organosilicon paint, and the add-on of described chromium sesquioxide powder is preferably 50-200% weight.
The present invention contains in the chromium high temperature organosilicon paint, in all right aluminium sesquioxide of adding in addition, silicon-dioxide, magnesium oxide, zirconium white, titanium dioxide, nickel oxide metal oxide or talcum powder, the mica powder natural mineral one or more, add-on is respectively 1%-100% weight.
The present invention contains in the chromium high temperature organosilicon paint, and described thinner, solidifying agent are conventional silicone resin thinner, solidifying agent.Can be methylsiloxane as organic silicone resin; Solidifying agent can be organic metal salts such as the trolamine that is used alone or in combination, triethylene tetramine, dibutyl phthalate, stannous octoate, dibutyl tin dilaurate; Thinner can be toluene, benzene, gasoline etc.
The chromium organosilicon heat-resistant coating that contains by above-mentioned formulated is coated on the stainless steel substrates of rust cleaning degrease, 80～120 ℃ of curing, puts into chamber type electric resistance furnace, is heated to 900 ℃, constant temperature 3 hours.After the taking-up, coating is firmly smooth, flawless, has shown fabulous resistance to elevated temperatures.
Embodiment:
Embodiment 1
Accurately take by weighing 1 part of commercially available silicone resin, the thinner of supporting sale, solidifying agent are an amount of with it, chromium sesquioxide powder portion.Earlier silicone resin, thinner, chromium sesquioxide powder are inserted in the container, after stirring, add solidifying agent, restir is even, can use.
Comparative example 1
Accurately take by weighing 1 part of commercially available silicone resin, the thinner of supporting sale, solidifying agent are an amount of with it, 0.2 part of talcum powder, 0.2 part of titanium dioxide, 0.15 part of mica powder, 0.15 part of silicon-dioxide.Earlier silicone resin, thinner, talcum powder, titanium dioxide, mica powder, silicon-dioxide are inserted in the container, after stirring, add solidifying agent, restir is even, can use.
Comparative example 2
Accurately take by weighing 1 part of commercially available silicone resin, the thinner of supporting sale, solidifying agent are an amount of with it, 0.6 part of talcum powder, 0.9 part of nickel oxide.Earlier silicone resin, thinner, talcum powder, nickel oxide powder are inserted in the container, after stirring, add solidifying agent, restir is even, can use.
Embodiment 2
Accurately take by weighing 1 part of commercially available silicone resin, the thinner of supporting sale, solidifying agent are an amount of with it, 1 part of chromium sesquioxide, 0.28 part of aluminum silicon powder.Earlier silicone resin, thinner, chromium sesquioxide, aluminum silicon powder are inserted in the container, after stirring, add solidifying agent, restir is even, can use.
Embodiment 3
Accurately take by weighing 1 part of commercially available silicone resin, the thinner of supporting sale, solidifying agent are an amount of with it, 1 part of chromium sesquioxide, 0.3 part of mica powder, 0.2 part of nickel oxide, 0.15 part of titanium dioxide.Earlier silicone resin, thinner, chromium sesquioxide, mica powder, nickel oxide, titanium dioxide are inserted in the container, after stirring, add solidifying agent, restir is even, can use.
Embodiment 4
Accurately take by weighing 1 part of commercially available silicone resin, the thinner of supporting sale, solidifying agent are an amount of with it, 1 part of chromium sesquioxide, 0.3 part of mica powder, 0.2 part of nickel oxide.Earlier silicone resin, thinner, chromium sesquioxide, mica powder, nickel oxide powder are inserted in the container, after stirring, add solidifying agent, restir is even, can use.
Comparative example 3
Accurately take by weighing 1 part of commercially available silicone resin, the thinner of supporting sale, solidifying agent are an amount of with it, 0.3 part of talcum powder, 0.4 part of mica powder, 0.3 part of nickel oxide.Earlier silicone resin, thinner, talcum powder, mica powder, nickel oxide powder are inserted in the container, after stirring, add solidifying agent, restir is even, can use.
Embodiment 5
Accurately take by weighing 1 part of commercially available silicone resin, the thinner of supporting sale, solidifying agent are an amount of with it, 2 parts of chromium sesquioxides.Earlier silicone resin, thinner, chromium sesquioxide powder are inserted in the container, after stirring, add solidifying agent, restir is even, can use.
Embodiment 6
The organosilicon heat-resistant coating that the foregoing description 1～5 and comparative example 1～3 are prepared is coated in equably on the stainless steel thin slice of rust cleaning degrease, after the 80-120 ℃ of curing, put into chamber type electric resistance furnace, 500 ℃ have been carried out respectively, 600 ℃, 700 ℃, 800 ℃, 900 ℃ pyroprocessing, constant temperature time are 3 hours.Test piece after the processing, observations is as shown in table 1 under 25 power microscopes.
Table 1
| Embodiment 3 | Flawless | Flawless | Tiny crack | ||
| Embodiment 4 | Flawless | Flawless | Flawless | Tiny crack | |
| Comparative example 3 | Flawless | Flawless | Tiny crack | ||
| Embodiment 5 | Flawless | Flawless | Flawless | Flawless | Flawless |
The result as can be seen from table, in silicone resin, add mineral or oxide compounds such as talcum powder, mica powder, magnesium oxide, nickel oxide, can improve the heat resisting temperature of organosilicon coating, but all do not have above 700 ℃, have only embodiment 2 and embodiment 5, the ratio that is silicone resin and chromium sesquioxide is 1: 1 and 1: 2 o'clock, and its resistance toheat all reaches 900 ℃, the surfacing flawless.Therefore contain chromium organosilicon heat-resistant coating and be a kind of high-temperature resistant coating of having very much potentiality.Because the technology of this coating is simple, easy to use, workable, thereby the application of this coating and development have broad prospects.
Claims (3)
1, a kind of chromium high temperature organosilicon paint that contains, with silicone resin, adding suitable thinner, solidifying agent is membrane-forming agent, it is characterized in that: be the physically modified material with the chromium sesquioxide, in the silicone resin solid content, the add-on of chromium sesquioxide powder is a 1.0-400% weight.
2, according to the described chromium high temperature organosilicon paint that contains of claim 1, it is characterized in that: the add-on of chromium sesquioxide powder is a 50-200% weight.
3, according to claim 1 or the 2 described chromium high temperature organosilicon paints that contain, it is characterized in that: one or more in adding aluminium sesquioxide, silicon-dioxide, magnesium oxide, zirconium white, titanium dioxide, nickel oxide metal oxide or talcum powder, the mica powder natural mineral, add-on is respectively 1%-100% weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310119266XA CN100357379C (en) | 2003-11-26 | 2003-11-26 | High temperature resistant chrome-containing organic silicon paint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310119266XA CN100357379C (en) | 2003-11-26 | 2003-11-26 | High temperature resistant chrome-containing organic silicon paint |
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| CN1621467A true CN1621467A (en) | 2005-06-01 |
| CN100357379C CN100357379C (en) | 2007-12-26 |
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| CNB200310119266XA Expired - Fee Related CN100357379C (en) | 2003-11-26 | 2003-11-26 | High temperature resistant chrome-containing organic silicon paint |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824275A (en) * | 2010-04-21 | 2010-09-08 | 袁泉利 | Special coating resisting 400 DEG C to 0 DEG C high and low temperature alternative transient variations |
| CN106147530A (en) * | 2016-07-27 | 2016-11-23 | 攀钢集团研究院有限公司 | Oiliness high-temperature steel titanium barrier coating and application thereof |
| CN107541142A (en) * | 2017-10-17 | 2018-01-05 | 江苏欣安新材料技术有限公司 | A kind of high temperature organosilicon paint and its production method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1026705C (en) * | 1989-05-09 | 1994-11-23 | 化学工业部晨光化工研究院一分院 | Ablative heat-isolating coating and process for preparing its spirit organosilicon resin |
| CN1295102A (en) * | 1999-11-09 | 2001-05-16 | 陈兴苟 | High temperature organosilicon paint |
-
2003
- 2003-11-26 CN CNB200310119266XA patent/CN100357379C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824275A (en) * | 2010-04-21 | 2010-09-08 | 袁泉利 | Special coating resisting 400 DEG C to 0 DEG C high and low temperature alternative transient variations |
| CN101824275B (en) * | 2010-04-21 | 2012-11-21 | 宁波浙润涂层新材料科技有限公司 | Special coating resisting 400 DEG C to 0 DEG C high and low temperature alternative transient variations |
| CN106147530A (en) * | 2016-07-27 | 2016-11-23 | 攀钢集团研究院有限公司 | Oiliness high-temperature steel titanium barrier coating and application thereof |
| CN107541142A (en) * | 2017-10-17 | 2018-01-05 | 江苏欣安新材料技术有限公司 | A kind of high temperature organosilicon paint and its production method |
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| Publication number | Publication date |
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| CN100357379C (en) | 2007-12-26 |
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Granted publication date: 20071226 Termination date: 20101126 |