CN103409063B - Environment-friendly room temperature curing organic silicon high-temperature resistant coating and preparation method thereof - Google Patents
Environment-friendly room temperature curing organic silicon high-temperature resistant coating and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to the field of coating technology, and especially relates to an environment-friendly room temperature curing organic silicon high-temperature resistant coating. The environment-friendly room temperature curing organic silicon high-temperature resistant coating is composed of A component and B component. A component comprises organic silicon resin, a pigment, a thermal insulation material, a high-temperature binding material, and a rust-resisting material with the balance being an organic solvent; B component comprises triethylenetetramine, a catalyst, an adhesion promoter, and absolute ethyl alcohol. The mass ratio of A component to B component is 20-25:1; and the thermal insulation material is a mixture prepared by mixing mica powder, alumina silicate fiber and aluminum oxide short fiber at a mass ratio of 10-12:8-10:5-20. The environment-friendly room temperature curing organic silicon high-temperature resistant coating is capable of solving the room temperature solidification problem of organic silicon high-temperature resistant thermal-insulating coatings, simplifying construction technologies, reducing construction energy consumption, and expanding the application range of organic silicon high-temperature resistant thermal-insulating coatings. Crosslink density of films made of the environment-friendly room temperature curing organic silicon high-temperature resistant coating is high, and fuel oil resistance is excellent. Aluminum oxide short fiber is used as the thermal insulation material, no coating additive is used, no priming paint is needed, the high-temperature resistance of the environment-friendly room temperature curing organic silicon high-temperature resistant coating is high, and the environment-friendly room temperature curing organic silicon high-temperature resistant coating is capable of resisting a temperature higher than 900 DEG C.
Description
Technical field
The present invention relates to technical field of coatings, particularly a kind of environment-friendly type self-vulcanizing high temperature organosilicon paint, also relates to its preparation method.
Background technology
Silicone resin and coating have good temperature tolerance, weathering resistance and non-corrosibility, are current well temperature-resistance thermal-insulation protective materials.But silicone resin and temperature-resistance thermal-insulation coating have the following disadvantages: 1) need the film forming that is heating and curing, usually need 160-180 DEG C to heat more than 4h ability film-forming, temperature tolerance is usually at 500 DEG C, and this brings very big inconvenience to construction, and along with very large energy consumption, range of application is limited; 2) temperature-resistance thermal-insulation effect is undesirable; 3) common silicone resin and temperature-resistance thermal-insulation coating is all that benzene class makes solvent, benzene kind solvent, harmful, inadequate environmental protection.
Above-mentioned deficiency greatly limit the use of organic silicon coating, and therefore seeking the organosilicon coating that a kind of self-vulcanizing, temperature-resistance thermal-insulation are effective, is the research that a urgent need is carried out.
Summary of the invention
Need to be heating and curing to solve above organic silicon coating, temperature-resistance thermal-insulation effect pays no attention to and think of environmental issue, the invention provides a kind of environment-friendly type self-vulcanizing high temperature organosilicon paint.
Present invention also offers the preparation method of above-mentioned self-vulcanizing high temperature organosilicon paint.
The present invention is achieved by the following measures:
A kind of environment-friendly type self-vulcanizing high temperature organosilicon paint, is made up of first component and component B,
First component raw material weight percentage is as follows:
Organosilicon dried resin 24.75-30.25%,
Pigment 5-10%,
Lagging material 23-42%,
High temperature bonding material 3-4%,
Rush-resisting material 3-5%,
Surplus is organic solvent;
Component B raw material weight percentage composition is as follows:
Triethylenetetramine (TETA) 40%,
Catalyzer 5%,
Adhesion promoter 5%,
Dehydrated alcohol 50%;
First, component B quality proportioning is 20-25:1;
Described lagging material is mica powder, aluminium silicate fiber peacekeeping alumina short fibre take mass ratio as the mixture that 10-12:8-10:5-20 obtains.
Described environment-friendly type self-vulcanizing high temperature organosilicon paint, alumina short fibre diameter is 5-8 μm, and length is 2-3mm.
Described environment-friendly type self-vulcanizing high temperature organosilicon paint, preferred high temperature bonding material is kaolin.
Described environment-friendly type self-vulcanizing high temperature organosilicon paint, preferred rush-resisting material is zinc phosphate.
Described environment-friendly type self-vulcanizing high temperature organosilicon paint, preferred catalyst is cobalt naphthenate.
Described environment-friendly type self-vulcanizing high temperature organosilicon paint, preferred adhesion promoter is tetrabutyl titanate.
Described environment-friendly type self-vulcanizing high temperature organosilicon paint, preferred pigments is rutile titanium white powder, graphite, silver powder or chromium sesquioxide.
The preparation method of described self-vulcanizing high temperature organosilicon paint:
(1) by ethanol and with organic solvent dispersion dissolve organosilicon dried resin add in container, mix, again under whipped state, pigment, lagging material, high temperature bonding material, rush-resisting material add by order, stir, be ground to regulation fineness, adjust viscosity with ethanol, both obtain coating first component;
(2) raw material of second component is mixed and obtains second component;
(3) when using, first component is mixed according to weight proportion with second component.
Described preparation method, first component mixes rear spraying, roller coating, brushing or dip-coating at workpiece surface with second component according to weight proportion.
Beneficial effect of the present invention:
(1) Triethylenetetramine (TETA) of four functionality and siccative, adhesion promoter is used to carry out composite, obtained solidifying agent, solve the self-vulcanizing problem of organosilicon fire-resistant thermal insulating coating, simplify construction technology, save Energy Consumption of Construction, expand the range of application of the heat insulation high-temperature resistant coating of organosilicon, and film cross-linking density is high, fuel-resistant oiliness is good;
(2) creative use novel material alumina short fibre makes thermal insulation material, does not use coatings additive(s), does not need to use priming paint, and the heat insulation high thermal resistance of coating is good, and temperature tolerance reaches more than 900 DEG C;
(3) this coating is highly filled, low VOC discharge, complete ethanol as solvent, asepsis environment-protecting.
Embodiment
For a better understanding of the present invention, further illustrate below in conjunction with specific embodiment.
In the ethanolic soln of the silicone resin mentioned in following embodiment, solids content is 55%.
embodiment 1:
(1) by ethanol and add in container with the organosilicon dried resin of dissolve with ethanol, mix, then under whipped state, rutile titanium white powder, lagging material, kaolin, zinc phosphate add by order, stir 15 minutes to evenly, be ground to regulation fineness, both obtain coating first component;
(2) raw material of second component is mixed and obtains second component;
(3) when using, first component is mixed according to weight proportion 20:1 with second component.
Wherein the ethanolic soln of silicone resin, ethanol, rutile titanium white powder, lagging material, kaolin, zinc phosphate weight ratio are 55:3:10:25:4:3, and in lagging material, mica powder, aluminum silicate fiber, alumina short fibre weight ratio are 12:8:5.
Dehydrated alcohol in component B: Triethylenetetramine (TETA): cobalt naphthenate: tetrabutyl titanate is all by weight the proportions of 50:40:5:5.
embodiment 2:
Preparation method is with embodiment 1, wherein, the ethanolic soln of silicone resin, ethanol, rutile titanium white powder, lagging material, kaolin, zinc phosphate weight ratio are 45:5:5:38:3:4, and in lagging material, mica powder, aluminum silicate fiber, alumina short fibre weight ratio are 10:8:20.
Dehydrated alcohol in component B: Triethylenetetramine (TETA): cobalt naphthenate: tetrabutyl titanate is all by the proportions of 50:40:5:5, and first, component B ratio is respectively 25:1.
embodiment 3:
Preparation method is with embodiment 1, wherein, the ethanolic soln of silicone resin, ethanol, pigment chromium sesquioxide, lagging material, kaolin, zinc phosphate weight ratio are 45:5:5:38:3:4, and in lagging material, mica powder, aluminum silicate fiber, alumina short fibre weight ratio are 10:8:20.
Dehydrated alcohol in component B: Triethylenetetramine (TETA): cobalt naphthenate: tetrabutyl titanate is all by the proportions of 50:40:5:5, and first, component B ratio is respectively 25:1.
embodiment 4:
Preparation method is with embodiment 1, wherein, the ethanolic soln of silicone resin, ethanol, pigment are graphite, lagging material, kaolin, zinc phosphate weight ratio are 45:5:15:28:3:4, and in lagging material, mica powder, aluminum silicate fiber, alumina short fibre weight ratio are 7:6:15.
Dehydrated alcohol in component B: Triethylenetetramine (TETA): cobalt naphthenate: tetrabutyl titanate is all by the proportions of 50:40:5:5, and first, component B ratio is respectively 25:1.
embodiment 5:
Preparation method is with embodiment 1, wherein, the ethanolic soln of silicone resin, ethanol, pigment are silver powder, lagging material, kaolin, zinc phosphate weight ratio are 45:5:5:38:3:4, and in lagging material, mica powder, aluminum silicate fiber, alumina short fibre weight ratio are 10:8:20.
Dehydrated alcohol in component B: Triethylenetetramine (TETA): cobalt naphthenate: tetrabutyl titanate is all by the proportions of 50:40:5:5, and first, component B ratio is respectively 25:1.
comparative example 1:
Preparation method is with embodiment 1, wherein, the ethanolic soln of silicone resin, ethanol, pigment rutile titanium white powder, lagging material, kaolin, zinc phosphate weight ratio are 45:5:5:38:3:4, mica powder, light calcium carbonate, micronized talc powder in lagging material, weight ratio is: 18:10:10.
Dehydrated alcohol in component B: Triethylenetetramine (TETA): cobalt naphthenate: tetrabutyl titanate is all by the proportions of 50:40:5:5, and first, component B ratio is respectively 25:1.
Do not use aluminium silicate fiber peacekeeping alumina short fibre, temperature tolerance is bad: paint film 800 DEG C, 1h is powder of detached.
The high/low temperature alternation of paint film is bad, after heating 0.5h, takes out the freezing 0.5h of dry ice putting into (-40 ± 5) DEG C more immediately, three all after dates under (500 ± 20) DEG C condition, and bubbling and obscission appears in paint film.
comparative example 2:
Preparation method is with embodiment 1, wherein, the ethanolic soln of silicone resin, ethanol, pigment are chromium sesquioxide, lagging material, zinc phosphate weight ratio are 45:5:5:38:3:4, and lagging material mica powder, aluminum silicate fiber, alumina short fibre weight ratio are 10:8:20.
Component B is: dehydrated alcohol: hexanediamine by 50:50(because the amine value of two kinds of low molecule amine is different, so the ratio of hexanediamine accounts for 50%, as follows) proportions, first, component B ratio is respectively 25:1.
Do not use the composite curing agent containing Triethylenetetramine (TETA), resin crosslink density is poor, and paint film fuel-resistant oiliness is bad: 50 DEG C, and after 4h, paint blister comes off.
The high/low temperature alternation of paint film is bad, after heating 0.5h, takes out the freezing 0.5h of dry ice putting into (-40 ± 5) DEG C more immediately, three all after dates under (500 ± 20) DEG C condition, and bubbling and obscission appears in paint film.
comparative example 3:
Preparation method is with embodiment 1, wherein, the ethanolic soln of silicone resin, ethanol, pigment are chromium sesquioxide, lagging material, kaolin, zinc phosphate weight ratio are 45:5:5:38:3:4, and lagging material mica powder, calcium carbonate, talcum powder, weight ratio is: 18:10:10.
Component B is: dehydrated alcohol: hexanediamine is by the proportions of 50:50, and first, component B ratio is respectively 25:1.
Paint film temperature tolerance is bad: 800 DEG C, 1h is powder of detached.
Paint film fuel-resistant oiliness is bad: 50 DEG C, and after 4h, paint blister comes off.
The high/low temperature alternation of paint film is bad, after heating 0.5h, takes out the freezing 0.5h of dry ice putting into (-40 ± 5) DEG C more immediately, three all after dates under (500 ± 20) DEG C condition, and bubbling and obscission appears in paint film.
detected result:
The detection method of the coating prepared in embodiment 1-5 according to national regulations detected, detected result sees the following form.
Note: high/low temperature alternation detection method is: test piece is No. 08 steel plate of 100 × 50 × (0.8-1.0) mm, after sandblasting, sprayed coating, dry film 80 μm, dry maintenance is after 7 days, heat 0.5h under (500 ± 20) DEG C condition after, taking out the freezing 0.5h of dry ice putting into (-40 ± 5) DEG C more immediately, is one-period.
Claims (9)
1. an environment-friendly type self-vulcanizing high temperature organosilicon paint, is characterized in that being made up of first component and component B,
First component raw material weight percentage is as follows:
Silicone resin 24.75-30.25%,
Pigment 5-10%,
Lagging material 23-42%,
High temperature bonding material 3-4%,
Rush-resisting material 3-5%,
Surplus is organic solvent;
Component B raw material weight percentage composition is as follows:
Triethylenetetramine (TETA) 40%,
Catalyzer 5%,
Adhesion promoter 5%,
Dehydrated alcohol 50%;
First, component B quality proportioning is 20-25:1;
Described lagging material is mica powder, aluminium silicate fiber peacekeeping alumina short fibre take mass ratio as the mixture that 10-12:8-10:5-20 obtains.
2. environment-friendly type self-vulcanizing high temperature organosilicon paint according to claim 1, it is characterized in that alumina short fibre diameter is 5-8 μm, length is 2-3mm.
3. environment-friendly type self-vulcanizing high temperature organosilicon paint according to claim 1, is characterized in that described high temperature bonding material is kaolin.
4. environment-friendly type self-vulcanizing high temperature organosilicon paint according to claim 1, is characterized in that described rush-resisting material is zinc phosphate.
5. environment-friendly type self-vulcanizing high temperature organosilicon paint according to claim 1, is characterized in that described catalyzer is cobalt naphthenate.
6. environment-friendly type self-vulcanizing high temperature organosilicon paint according to claim 1, is characterized in that described adhesion promoter is tetrabutyl titanate.
7. environment-friendly type self-vulcanizing high temperature organosilicon paint according to claim 1, is characterized in that described pigment is rutile titanium white powder, graphite, silver powder or chromium sesquioxide.
8. a preparation method for the environment-friendly type self-vulcanizing high temperature organosilicon paint according to any one of claim 1-7, is characterized in that
(1) by ethanol and with organic solvent dispersion dissolve silicone resin add in container, mix, again under whipped state, pigment, lagging material, high temperature bonding material, rush-resisting material add by order, stir, be ground to regulation fineness, adjust viscosity with ethanol, both obtain coating first component;
(2) raw material of second component is mixed and obtains second component;
(3) when using, first component is mixed according to weight proportion with second component.
9. preparation method according to claim 8, is characterized in that first component mixes rear spraying, roller coating, brushing or dip-coating at workpiece surface with second component according to weight proportion.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104946129A (en) * | 2015-07-24 | 2015-09-30 | 上海海悦涂料有限公司 | Polysiloxane heat-reflective topcoat and preparation method thereof |
| CN107793797B (en) * | 2017-10-17 | 2019-07-12 | 中昊北方涂料工业研究设计院有限公司 | A kind of one-component Trend of Chrome-free room temperature curing refractory inorganic paint and its preparation |
| CN114181613B (en) * | 2021-10-27 | 2022-05-27 | 中国航发北京航空材料研究院 | High-temperature-resistant heat-insulating anticorrosive coating and preparation method thereof |
| CN115678426B (en) * | 2022-11-11 | 2024-02-27 | 山东北方现代化学工业有限公司 | Super-temperature-resistant organosilicon ablation-resistant sagging-resistant heat-insulating coating and preparation method thereof |
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| CN101033369A (en) * | 2007-04-19 | 2007-09-12 | 重庆三峡油漆股份有限公司 | Semi-interpenetrating network structure double-component fire resistant paint |
| CN101130663A (en) * | 2007-10-10 | 2008-02-27 | 大庆油田有限责任公司 | Fire resistant anticorrosive paint of organosilicon |
| CN101633818A (en) * | 2008-07-24 | 2010-01-27 | 中冶集团建筑研究总院 | Organosilicon high-temperature resistant coating being solidifiable at normal temperature |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033369A (en) * | 2007-04-19 | 2007-09-12 | 重庆三峡油漆股份有限公司 | Semi-interpenetrating network structure double-component fire resistant paint |
| CN101130663A (en) * | 2007-10-10 | 2008-02-27 | 大庆油田有限责任公司 | Fire resistant anticorrosive paint of organosilicon |
| CN101633818A (en) * | 2008-07-24 | 2010-01-27 | 中冶集团建筑研究总院 | Organosilicon high-temperature resistant coating being solidifiable at normal temperature |
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