CN105419417A - Heat-resistant modified environment-friendly coating - Google Patents
Heat-resistant modified environment-friendly coating Download PDFInfo
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- CN105419417A CN105419417A CN201510880154.9A CN201510880154A CN105419417A CN 105419417 A CN105419417 A CN 105419417A CN 201510880154 A CN201510880154 A CN 201510880154A CN 105419417 A CN105419417 A CN 105419417A
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- thermotolerance
- environment
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- potassium silicate
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Abstract
The invention discloses a heat-resistant modified environment-friendly coating and a preparation method thereof. The preparation method comprises the following steps: preparing potassium silicate sol from a potassium silicate solution; mixing the potassium silicate sol with silica sol under a heating condition; adding silane and stopping heating; stirring at a high speed, cooling, standing and layering; filtering out a transparent solution and adding zinc powder into the filtered solution; and finally, adding a sodium alginate solution and an aluminum-titanium composite coupling agent, and stirring uniformly to obtain the heat-resistant modified environment-friendly coating. The coating is combined with polysiloxane (Si-O-Si) when forming into a solidified layer, wherein the binding energy of the Si-O bond is much higher than that of the C-C bond forming organic macromolecules, and thus the heat resistance is stronger; and moreover, with strong adhesion, the coating has relatively good application prospects.
Description
Technical field
The present invention relates to a kind of coating, particularly a kind of thermotolerance environment-friendly type coating and preparation method thereof, belong to coating synthesis field.
Background technology
According to statistics; the loss amount of the annual metal construction, equipment and the material that cause because of corrosion; be about as much as the 20-40% of annual metal production; the metal that the whole world is scrapped because of corrosion every year reaches more than 100,000,000 tons; financial loss accounts for the 1.5-3.5% of total value of production in national economy, carries out antirust, anti-corrosion protection be as can be seen here very important to iron and steel.
Coating protective system is the means in important prolongation iron and steel work-ing life.Common paint is at steel surface, just prevent steel corrosion in the mode of isolated air, and major part synthesis organic coating generally all contains a large amount of organic solvent and has the solvent flashing such as pigment, filler of certain toxicity, organic volatile amount (VOC) forms direct harm to we mankind itself.Therefore, can improve the antiseptic property of iron and steel coating, again decreasing pollution, research Environment-friendlyanti-corrosive anti-corrosive paint has larger actual value.
Inorganic aqueous coating is mainly base-material with inorganic silicate, generally supporting with inorganic zinc primer powder.This matching system not only has the feature of environmental protection, and there is thermotolerance, combine with polysiloxane (Si-O-Si) when forming cured layer, the combination of this Si-O key can be 106kcal/mol, than being formed, organic macromolecule C-C bond conjunction energy (82.6kcal/mol) is much bigger, thus has stronger thermotolerance.
But simultaneously because solvent is few, wettability is low, thus sticking power is good not as corresponding solvent based coating, and zinc powder adds in coating, and due to zinc powder and the more difficult fusion of inorganic silicate, attached power low with ground.For this reason, the present invention, by dope preparing process, adds aluminium titanium composite coupler, improves the compatibility of metal zinc and silicate, strengthens the sticking power of coating, thus prepares a kind of thermotolerance modified environment protection type coating.
Summary of the invention
The object of this invention is to provide a kind of thermotolerance modified environment protection type coating and preparation method thereof, the method comprises the steps:
(1) the people that fallen by quantitative distilled water is equipped with in the reactor of high speed agitator and heating unit, is heated to temperature to 40-50 DEG C, under agitation slowly adds the potassium silicate solution of metering, and configuration solid content is the potassium silicate colloidal sol of 40%;
(2), under the condition constantly stirred, slowly add the silicon sol of metering;
(3) system is heated, be heated to temperature to 50-60 DEG C, then drip silane in reactor;
(4) after dripping silane, high-speed stirring 1-2 hour, cooling, leaves standstill, topples over, filters from upper strata, takes out clear transparent solutions;
(5) add in clear transparent solutions again and be a certain amount ofly greater than 400 object zinc powders;
(6) finally add a certain amount of sodium alginate soln and aluminium titanium composite coupler, after stirring a kind of thermotolerance modified environment protection type coating.
The present invention is in coating preparation process (1) process, and the per-cent that the quality of prepared potassium silicate colloidal sol accounts for system is 20%-30%.
The present invention is in coating preparation process (2) process, and the per-cent that the mass ratio of the silicon sol added accounts for system is 15%-20%.
The present invention is in coating preparation process (3) process, and the per-cent that the quality of the silane added accounts for system is 10%-20%.
The present invention is in coating preparation process (5) process, and the per-cent that the quality of the zinc powder added accounts for system is more than 40%.
The present invention is in coating preparation process (6) process, and the mass concentration of the sodium alginate soln added is 1%-2%, and the per-cent that the quality of the aluminium titanium composite coupler added accounts for system is 1%-2%.
Embodiment
Embodiment one:
The people that fallen by quantitative distilled water is equipped with in the reactor of high speed agitator and heating unit, be heated to temperature to 40 DEG C, under agitation slowly add the potassium silicate solution of metering, configuration solid content is the potassium silicate colloidal sol 200g of 40%, in whipping process, slowly drip 200g silicon sol again, after dropwising, system is heated, when temperature rises to 50 DEG C, 100g silane is dripped again in reactor, after dripping silane, stop heating, and high-speed stirring 1 hour, cooling, leave standstill, topple over from upper strata, filter, take out clear transparent solutions, the 400 object zinc powders of 480g are added again in clear transparent solutions, finally adding 10g mass concentration is the sodium alginate soln of 2% and the aluminium titanium composite coupler of 10g, Keep agitation evenly a kind of thermotolerance modified environment protection type coating.
Embodiment two:
The people that fallen by quantitative distilled water is equipped with in the reactor of high speed agitator and heating unit, be heated to temperature to 45 DEG C, under agitation slowly add the potassium silicate solution of metering, configuration solid content is the potassium silicate solution 600g of 40%, in whipping process, slowly drip 300g silicon sol again, after dropwising, system is heated, when temperature rises to 55 DEG C, 220g silane is dripped again in reactor, after dripping silane, stop heating, and high-speed stirring 1 hour, cooling, leave standstill, topple over from upper strata, filter, take out clear transparent solutions, the 500 object zinc powders of 800g are added again in clear transparent solutions, finally adding 40g mass concentration is the sodium alginate soln of 2% and the aluminium titanium composite coupler of 40g, Keep agitation evenly a kind of thermotolerance modified environment protection type coating.
Embodiment three:
The people that fallen by quantitative distilled water is equipped with in the reactor of high speed agitator and heating unit, be heated to temperature to 50 DEG C, under agitation slowly add the potassium silicate solution of metering, configuration solid content is the potassium silicate solution 400g of 40%, in whipping process, slowly drip 360g silicon sol again, after dropwising, system is heated, when temperature rises to 60 DEG C, 400g silane is dripped again in reactor, after dripping silane, stop heating, and high-speed stirring 2 hours, cooling, leave standstill, topple over from upper strata, filter, take out clear transparent solutions, the 500 object zinc powders of 800g are added again in clear transparent solutions, finally adding 20g mass concentration is the sodium alginate soln of 2% and the aluminium titanium composite coupler of 20g, Keep agitation evenly a kind of thermotolerance modified environment protection type coating.
Claims (6)
1. a thermotolerance environment-friendly type coating, is characterized in that, the preparation method of this coating comprises the following steps:
(1) the people that fallen by quantitative distilled water is equipped with in the reactor of high speed agitator and heating unit, is heated to temperature to 40-50 DEG C, under agitation slowly adds the potassium silicate solution of metering, and configuration solid content is the potassium silicate colloidal sol of 40%;
(2), under the condition constantly stirred, slowly add the silicon sol of metering;
(3) system is heated, be heated to temperature to 50-60 DEG C, then drip silane in reactor;
(4) after dripping silane, high-speed stirring 1-2 hour, cooling, leaves standstill, topples over, filters from upper strata, takes out clear transparent solutions;
(5) add in clear transparent solutions again and be a certain amount ofly greater than 400 object zinc powders;
(6) finally add a certain amount of sodium alginate soln and aluminium titanium composite coupler, after stirring a kind of thermotolerance modified environment protection type coating.
2. a kind of thermotolerance environment-friendly type coating according to claim 1, is characterized in that, step is (1) in process, and the per-cent that the quality of prepared potassium silicate colloidal sol accounts for system is 20%-30%.
3. a kind of thermotolerance environment-friendly type coating according to claim 1, is characterized in that, step is (2) in process, and the per-cent that the mass ratio of the silicon sol added accounts for system is 15%-20%.
4. a kind of thermotolerance environment-friendly type coating according to claim 1, is characterized in that, step is (3) in process, and the per-cent that the quality of the silane added accounts for system is 10%-20%.
5. a kind of thermotolerance environment-friendly type coating according to claim 1, is characterized in that, step is (5) in process, and the per-cent that the quality of the zinc powder added accounts for system is more than 40%.
6. a kind of thermotolerance environment-friendly type coating according to claim 1, is characterized in that, step is (6) in process, and the mass concentration of the sodium alginate soln added is 1%-2%, and the per-cent that the aluminium titanium composite coupler added accounts for system is 1%-2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510880154.9A CN105419417A (en) | 2015-12-06 | 2015-12-06 | Heat-resistant modified environment-friendly coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510880154.9A CN105419417A (en) | 2015-12-06 | 2015-12-06 | Heat-resistant modified environment-friendly coating |
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| Publication Number | Publication Date |
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| CN105419417A true CN105419417A (en) | 2016-03-23 |
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| CN201510880154.9A Pending CN105419417A (en) | 2015-12-06 | 2015-12-06 | Heat-resistant modified environment-friendly coating |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1468924A (en) * | 2003-06-02 | 2004-01-21 | 海洋化工研究院 | Synthesis of high-molar ratio potassium silicate adhesive and aqueous anticorrosive paint composition |
| CN1597617A (en) * | 2004-09-29 | 2005-03-23 | 哈尔滨工业大学 | Sintered metal powder coating material and method of preparing metal ceramic anti corrosive coating |
| CN102146225A (en) * | 2011-03-09 | 2011-08-10 | 华南理工大学 | Waterborne room-temperature self-curing inorganic zinc rich coating |
| CN105038339A (en) * | 2015-08-26 | 2015-11-11 | 黄坤贞 | Antirust functional metallic coating doped with vinyl trimethoxy silane |
-
2015
- 2015-12-06 CN CN201510880154.9A patent/CN105419417A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1468924A (en) * | 2003-06-02 | 2004-01-21 | 海洋化工研究院 | Synthesis of high-molar ratio potassium silicate adhesive and aqueous anticorrosive paint composition |
| CN1597617A (en) * | 2004-09-29 | 2005-03-23 | 哈尔滨工业大学 | Sintered metal powder coating material and method of preparing metal ceramic anti corrosive coating |
| CN102146225A (en) * | 2011-03-09 | 2011-08-10 | 华南理工大学 | Waterborne room-temperature self-curing inorganic zinc rich coating |
| CN105038339A (en) * | 2015-08-26 | 2015-11-11 | 黄坤贞 | Antirust functional metallic coating doped with vinyl trimethoxy silane |
Non-Patent Citations (1)
| Title |
|---|
| 王宇池: "混合型水性无机富锌涂料的制备及其性能研究", 《中国优秀硕士学位论文全文数据库》 * |
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Application publication date: 20160323 |
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