CN105038498A - Aerosil-floating bead composite thermal-insulation heat-preserving paint and preparation method thereof - Google Patents
Aerosil-floating bead composite thermal-insulation heat-preserving paint and preparation method thereof Download PDFInfo
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- CN105038498A CN105038498A CN201510393606.0A CN201510393606A CN105038498A CN 105038498 A CN105038498 A CN 105038498A CN 201510393606 A CN201510393606 A CN 201510393606A CN 105038498 A CN105038498 A CN 105038498A
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Abstract
The invention provides an aerosil-floating bead composite thermal-insulation heat-preserving paint. The paint is prepared from the following raw materials by weight: 32 to 35 parts of ethyl orthosilicate, a proper amount of hydrochloric acid, a proper amount of ammonia water, a proper amount of ethanol, a proper amount of deionized water, 4 to 5 parts of trimethylchlorosilane, 2 to 3 parts of polyester acrylate, 0.6 to 0.8 part of floating beads, 0.8 to 1.1 parts of aluminum monostearate, 0.02 to 0.04 part of a silane coupling agent KH550, 0.02 to 0.04 part of octane phenol polyoxyethylene, 70 to 75 parts of epoxy resin E-12, 9 to 12 parts of ethylene glycol diglycidylether, 0.3 to 0.5 part of sodium silicate and 9 to 11 parts of diethanolamine. According to the invention, through addition of the modified floating bead, aerosil has improved strength and is prevented from fragmentation, heat resistance of the paint is improved, and thermal insulation performance of the paint is barely influenced; and through usage of aluminum monostearate, bonding between aerosil microspheres and epoxy resin is improved.
Description
Technical field
The present invention relates to thermal insulation coatings field, particularly relate to a kind of aerosil-drift pearl composite heat preserving and thermal insulating coating and preparation method thereof.
Background technology
Aerosil has nanoaperture, is a kind of porous solid material, has low density, the constructional feature of high porosity, have superthermal insulation performance.Utilize silica aerosil microballoon and coating membrane-forming materials combine, form the coating with super heat-insulating property.
Current aerosil utilizes sol-gel method mostly, by silicon source hydrolysis preparations such as tetraethoxys, the aerosil obtained the thus very easily moisture absorption, chance water ftractures, nano-pore structure is caused to be destroyed, affect the performance of aerogel, therefore in preparation process, usually will carry out necessary hydrophobically modified to silica dioxide gel, strengthen the hydrophobicity of aerogel.Its main means adopt specific hydrophobic modifier, silicone hydroxyl hydrophilic in silica wet gel is replaced with methyl, the non-polar group that methylene radical etc. are hydrophobic, thus strengthen the hydrophobicity of gelinite, the material being commonly used for hydrophobic modifier has trimethylchlorosilane, dimethyldiethoxysilane, methyl disilazane, methyltrimethoxy silane etc.
Crossing hydrophobic silica aerosil microballoon is a kind of good lagging material, but because its surface is containing a large amount of non-polar groups, the poor compatibility when it mixes with aqueous polymer systems, interface resistance is large, aerogel microball dispersion is simultaneously uneven, very easily reunites, causes the degradation of matrix material, therefore, suitable modification must be carried out to hydrophobic silica aerogel microballoon.
Aerosil airsetting colloid is crisp frangible, intensity is low, the performances such as resistance to compression are strong not, easily lose heat-insulating property, dimension needs the intensity increasing aerosil, and the method increasing aerosil intensity has interpolation skeleton, exactly modification is carried out to it in addition, increase the strength of joint between its molecule, also need other performances improving aerogel, as performances such as resistance to ultraviolets.Utilize aerosil to be combined the coating making high heat preservation performance with high-molecular coating, can mass energy be saved, also need to solve aerogel and high molecular bonding strength, just need to carry out suitable modification to aerogel.
Summary of the invention
The object of the present invention is to provide a kind of aerosil-drift pearl composite heat preserving and thermal insulating coating and preparation method thereof, this coating resistance toheat is good, good heat insulating.
Technical scheme of the present invention is as follows:
A kind of aerosil-drift pearl composite heat preserving and thermal insulating coating, is characterized in that being made up of the raw material of following weight part: tetraethoxy 32-35, hydrochloric acid are appropriate, ammoniacal liquor is appropriate, appropriate amount of ethanol, deionized water in right amount, trimethylchlorosilane 4-5, polyester acrylate 2-3, float pearl 0.6-0.8, aluminum monostearate 0.8-1.1, silane coupling agent KH55O0.02-0.04, Polyethylene Octylphenol Ether 0.02-0.04, E-12 epoxy resin 70-75, ethylene glycol diglycidylether 9-12, water glass 0.3-0.5, diethanolamine 9-11;
The preparation method of described aerosil-drift pearl composite heat preserving and thermal insulating coating, is characterized in that comprising the following steps:
(1) Polyethylene Octylphenol Ether, water glass are added in the deionized water of 3-5 weight part, after stirring, add silane coupling agent KH55O, after stirring, add drift pearl, after stirring, supersound process 5-7 minute, spraying dry, obtains the drift pearl of finishing;
(2) by tetraethoxy: ethanol: hydromassage that is than 1:(8-12): (6-12) adds in container successively, under stirring at 350-400 rev/min, add hydrochloric acid alcoholic solution, adjustment pH value is 2-3, stir 10-13 hour, add the drift pearl that (1) step obtains, mix, then add ammoniacal liquor alcoholic solution, adjustment pH value is 7-8.5, continue to stir 1-2 hour, pour mould into, at room temperature seal and leave standstill, form silica dioxide gel, carry out atomization process, obtain silica gel microspheres, particle diameter is at 1-300 μm; Described hydrochloric acid alcoholic solution is hydrochloric acid: ethanol contend ratio=1:49, and ammoniacal liquor alcoholic solution is ammoniacal liquor: ethanol contend ratio=1:49;
(3) get the ethanol of 30-40 weight part, add trimethylchlorosilane, stir, then add in silica gel microspheres, stir, aging two days at normal temperatures, by ethanol and deionized water by volume 1:1 mix, obtain aqueous ethanolic solution, get the aqueous ethanolic solution of 3 times of weight of silica gel microspheres, cleaning gel micro-ball 3 times, add aluminum monostearate, stir, with the ethanol purge 3 times of 3 times of weight, at supercritical CO
2dry under condition, obtain the silica aerosil microballoon of modification;
(4) other remaining components are mixed, stir, then add the improved silica aerogel microball that (3) step obtains, stir, to obtain final product.
Beneficial effect of the present invention
The present invention, by adding the drift pearl of modification, not only increases the intensity of aerosil, prevents fragmentation, also add the resistance toheat of coating, and not too affect heat-insulating property; By using aluminum monostearate, add the cohesiveness of aerogel microball and epoxy resin.
Embodiment
A kind of aerosil-drift pearl composite heat preserving and thermal insulating coating, be made up of the raw material of following weight part (kilogram): tetraethoxy 33, hydrochloric acid are appropriate, ammoniacal liquor is appropriate, appropriate amount of ethanol, deionized water in right amount, trimethylchlorosilane 4.5, polyester acrylate 2.5, float pearl 0.7, aluminum monostearate 1, silane coupling agent KH55O0.03, Polyethylene Octylphenol Ether 0.03, E-12 epoxy resin 73, ethylene glycol diglycidylether 11, water glass 0.4, diethanolamine 10;
The preparation method of described aerosil-drift pearl composite heat preserving and thermal insulating coating, comprises the following steps:
(1) Polyethylene Octylphenol Ether, water glass are added in the deionized water of 4 weight parts, after stirring, add silane coupling agent KH55O, after stirring, add drift pearl, after stirring, supersound process 6 minutes, spraying dry, obtains the drift pearl of finishing;
(2) by tetraethoxy: ethanol: hydromassage that adds in container successively than 1:10:9, under stirring at 380 revs/min, hydrochloric acid alcoholic solution is added, regulate pH value to be 2, stir 11 hours, add the drift pearl that (1) step obtains, mix, then add ammoniacal liquor alcoholic solution, regulate pH value to be 8, continue stirring 1 hour, pour mould into, at room temperature seal and leave standstill, form silica dioxide gel, carry out atomization process, obtain silica gel microspheres, particle diameter is at 1-300 μm; Described hydrochloric acid alcoholic solution is hydrochloric acid: ethanol contend ratio=1:49, and ammoniacal liquor alcoholic solution is ammoniacal liquor: ethanol contend ratio=1:49;
(3) get the ethanol of 35 weight parts, add trimethylchlorosilane, stir, then add in silica gel microspheres, stir, aging two days at normal temperatures, by ethanol and deionized water by volume 1:1 mix, obtain aqueous ethanolic solution, get the aqueous ethanolic solution of 3 times of weight of silica gel microspheres, cleaning gel micro-ball 3 times, add aluminum monostearate, stir, with the ethanol purge 3 times of 3 times of weight, at supercritical CO
2dry under condition, obtain the silica aerosil microballoon of modification;
(4) other remaining components are mixed, stir, then add the improved silica aerogel microball that (3) step obtains, stir, to obtain final product.
Experimental data
The applying coating of this embodiment is on steel plate, and thickness is 3mm, and thermal conductivity is 0.034W/mk(25 DEG C of environment after testing), film ablation surplus is 97.5%, resistance to 80 washings.
Claims (2)
1. aerosil-drift pearl composite heat preserving and thermal insulating coating, is characterized in that being made up of the raw material of following weight part: tetraethoxy 32-35, hydrochloric acid are appropriate, ammoniacal liquor is appropriate, appropriate amount of ethanol, deionized water are appropriate, trimethylchlorosilane 4-5, polyester acrylate 2-3, drift pearl 0.6-0.8, aluminum monostearate 0.8-1.1, silane coupling agent KH55O0.02-0.04, Polyethylene Octylphenol Ether 0.02-0.04, E-12 epoxy resin 70-75, ethylene glycol diglycidylether 9-12, water glass 0.3-0.5, diethanolamine 9-11.
2. the preparation method of aerosil-drift pearl composite heat preserving and thermal insulating coating according to claim 1, is characterized in that comprising the following steps:
(1) Polyethylene Octylphenol Ether, water glass are added in the deionized water of 3-5 weight part, after stirring, add silane coupling agent KH55O, after stirring, add drift pearl, after stirring, supersound process 5-7 minute, spraying dry, obtains the drift pearl of finishing;
(2) by tetraethoxy: ethanol: hydromassage that is than 1:(8-12): (6-12) adds in container successively, under stirring at 350-400 rev/min, add hydrochloric acid alcoholic solution, adjustment pH value is 2-3, stir 10-13 hour, add the drift pearl that (1) step obtains, mix, then add ammoniacal liquor alcoholic solution, adjustment pH value is 7-8.5, continue to stir 1-2 hour, pour mould into, at room temperature seal and leave standstill, form silica dioxide gel, carry out atomization process, obtain silica gel microspheres, particle diameter is at 1-300 μm; Described hydrochloric acid alcoholic solution is hydrochloric acid: ethanol contend ratio=1:49, and ammoniacal liquor alcoholic solution is ammoniacal liquor: ethanol contend ratio=1:49;
(3) get the ethanol of 30-40 weight part, add trimethylchlorosilane, stir, then add in silica gel microspheres, stir, aging two days at normal temperatures, by ethanol and deionized water by volume 1:1 mix, obtain aqueous ethanolic solution, get the aqueous ethanolic solution of 3 times of weight of silica gel microspheres, cleaning gel micro-ball 3 times, add aluminum monostearate, stir, with the ethanol purge 3 times of 3 times of weight, at supercritical CO
2dry under condition, obtain the silica aerosil microballoon of modification;
(4) other remaining components are mixed, stir, then add the improved silica aerogel microball that (3) step obtains, stir, to obtain final product.
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| CN201510393606.0A CN105038498A (en) | 2015-07-08 | 2015-07-08 | Aerosil-floating bead composite thermal-insulation heat-preserving paint and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107236271A (en) * | 2017-06-20 | 2017-10-10 | 合肥尚涵装饰工程有限公司 | A kind of composite door and window section bar and preparation method thereof |
| CN108517156A (en) * | 2018-03-26 | 2018-09-11 | 安徽东泰建筑装饰材料有限公司 | The production method of heat insulating reflecting type multicolor finish |
| CN112259841A (en) * | 2020-09-24 | 2021-01-22 | 沈阳化工大学 | Preparation method of heat-preservation and heat-insulation composite thermal battery shell |
| CN112727007A (en) * | 2020-12-29 | 2021-04-30 | 河南安筑装配式防排烟风管有限公司 | Fire prevention tuber pipe is with floating pearl fire-resistant heat insulating board module |
| CN113698151A (en) * | 2021-08-26 | 2021-11-26 | 安徽天锦云节能防水科技有限公司 | Polyphenyl particle-aerogel composite cement-based thermal insulation material |
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| CN103333542A (en) * | 2013-07-04 | 2013-10-02 | 河南工业大学 | Silica aerogel microsphere composite thermal insulation coating |
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- 2015-07-08 CN CN201510393606.0A patent/CN105038498A/en active Pending
Patent Citations (5)
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| CN102782057A (en) * | 2009-12-22 | 2012-11-14 | 汉伯公司 | Novel fouling control coating compositions |
| CN101928513A (en) * | 2010-09-17 | 2010-12-29 | 浩力森涂料（上海）有限公司 | Method for preparing environment-friendly black low-temperature curing cathode electrophoresis coating |
| CN102850905A (en) * | 2012-09-11 | 2013-01-02 | 安徽理工大学 | Aqueous expansion-type steel structure fireproof paint and preparation method thereof |
| CN102850825A (en) * | 2012-09-11 | 2013-01-02 | 安徽理工大学 | Method and application for carrying out fly ash floating bead surface modification by using compound coupling agent |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107236271A (en) * | 2017-06-20 | 2017-10-10 | 合肥尚涵装饰工程有限公司 | A kind of composite door and window section bar and preparation method thereof |
| CN108517156A (en) * | 2018-03-26 | 2018-09-11 | 安徽东泰建筑装饰材料有限公司 | The production method of heat insulating reflecting type multicolor finish |
| CN112259841A (en) * | 2020-09-24 | 2021-01-22 | 沈阳化工大学 | Preparation method of heat-preservation and heat-insulation composite thermal battery shell |
| CN112727007A (en) * | 2020-12-29 | 2021-04-30 | 河南安筑装配式防排烟风管有限公司 | Fire prevention tuber pipe is with floating pearl fire-resistant heat insulating board module |
| CN113698151A (en) * | 2021-08-26 | 2021-11-26 | 安徽天锦云节能防水科技有限公司 | Polyphenyl particle-aerogel composite cement-based thermal insulation material |
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Application publication date: 20151111 |