CN105368259A - Preparation method of weather-resistant coating used for epoxy floor level - Google Patents
Preparation method of weather-resistant coating used for epoxy floor level Download PDFInfo
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Abstract
The invention discloses a preparation method of a weather-resistant coating used for epoxy floor level. The preparation method comprises following steps: aqueous solutions of epoxy resin, m-trifluoromethylphenol, a surfactant, and an alkali metal hydroxide are uniformly mixed with an organic solvent; an obtained mixture is subjected to heating reaction, and after reaction, the organic solvent is removed via distillation; tetraethoxysilane is added, an obtained mixed material is washed with water, an obtained water phase is removed, and an obtained organic phase is evaporated so as to obtain a first mixed solution for further processing; ethylene-vinyl alcohol copolymer, aluminum sol, dicumyl peroxide, diethanol amine, and an organic solvent are uniformly mixed so as to obtain a second mixed solution; the first mixed solution, a diluent, and an anti-oxidant are uniformly mixed, and an obtained product is heated to 60 to 65 DEG C, an obtained reaction product is added into the second mixed solution, and an obtained reaction mixture is subjected to thermal insulation for 5 to 8h at 70 to 80 DEG C; after thermal insulation, an obtained reaction compound is cooled and discharged so as to obtain the weather-resistant coating used for epoxy floor level. The weather-resistant coating possesses excellent weather resistance at heat humid conditions and at low temperature environment, and excellent chemical corrosion resistance.
Description
Technical field
The invention belongs to building coating field, specifically disclose a kind of preparation method of weatherability coating of epoxide terrace.
Background technology
Terrace paint is the important component part of industrial coating, along with developing by leaps and bounds of modern industry and improving constantly of people's living standard, current each industrial sector, each enterprises and institutions and family to the kind of terrace paint and performance requriements also more and more higher.As the industry such as food, medicine, require that floor coating does not play ash, without unwanted volatile, totally dustless; Mechanical industry requires the resistance to strong mechanical shock of floor coating, wear-resistant; The industry such as lathe, instrument, requires that floor coating oil resistance is good; Chemical enterprise requires the various chemical mediator corrosion of floor coating ability; The ground of organ, hygiene department and family's terrace paint requires smooth, beautiful, rich color, can create a good job and living environment to people.Its cost requires that from dozens of yuan every square metre to thousand yuan every square metre etc. range of application does not constantly expand.Coating Industry in Our Country is developed comparatively early, and terrace paint application is started late.Its kind comprises from common solvent-borne type thin coating floor, to mortar type terrace, solvent-borne type gravity flow self-leveling floor, solvent-free self-leveling terrace, water-based terrace, antistatic floor, anti-skidding terrace, color mortar coatings, radioprotective terrace and inorganic abrasion-proof terrace etc.
Epoxy resin is one of main film forming material of terrace paint.Because epoxypaint has, hardness is high, wear resistance good, chemical proofing is excellent, smooth attractive in appearance, any surface finish, by force ornamental, so can be widely used in the every field such as the application of each industrial sector terrace and the application of relevant works terrace.
Although epoxy flooring coating has above many advantages, also have some shortcomings, namely require higher in construction process to material surface degree of cleaning, construct under being not suitable for winter or low temperature environment, it shows as mobility and resistance to flow.At high temperature, easily flow; Under low temperature, show resistance to flow.These characteristics cause existing epoxy flooring coating weathering resistance not strong, therefore must make improvements it.
Summary of the invention
Goal of the invention: the present invention mainly solves the not strong problem of existing epoxy flooring coating weathering resistance, provides a kind of preparation method of weatherability coating of epoxide terrace.
Technical scheme of the present invention:
A preparation method for the weatherability coating of epoxide terrace, comprises the steps:
1st step, by weight, the aqueous solution 3 ~ 8 parts and the organic solvent 10 ~ 15 parts of epoxy resin 45 ~ 60 parts, m-trifluoromethyl phenol 1 ~ 5 part, 1 ~ 5 part, tensio-active agent, alkali metal hydroxide is mixed, reacting by heating, after reaction terminates, evaporation of solvent, add tetraethyl orthosilicate 12 ~ 18 parts, after adding water washing again, removing aqueous phase, is evaporated to dry by organic phase, obtain the first mixed solution, for subsequent use;
2nd step, by weight, ethylene-vinyl alcohol copolymer 5 ~ 10 parts, Alumina gel 3 ~ 8 parts, dicumyl peroxide 1 ~ 5 part, diethanolamine 2 ~ 4 parts, organic solvent 8 ~ 15 parts to be mixed, as the second mixed solution;
3rd step, by weight, first mixed solution, thinner 3 ~ 5 parts, antioxidant 3 ~ 5 parts are mixed, then 60 ~ 65 DEG C are warming up to, drip in the second mixing solutions, after dropwising, at 70 ~ 80 DEG C, be incubated 5 ~ 8 hours, insulation terminates rear cooling discharge, obtains the weatherability coating of epoxide terrace.
In 1st step, described alkali metal hydroxide is sodium hydroxide, and the concentration of the aqueous solution of described sodium hydroxide is 5 ~ 15wt%.
In 1st step, described organic solvent is ethyl acetate.
In 1st step, the Heating temperature of described reacting by heating is 80 ~ 90 DEG C.
In 2nd step, described organic solvent is dehydrated alcohol.
In 3rd step, described thinner is selected from the mixture of one or more in diglycidylether, diglycidyl ether of ethylene glycol, hexylene glycol glycidyl ether, neopentyl glycol glycidyl ether, glycerin triglycidyl ether.
Beneficial effect
The weatherability coating that the present invention prepares all has good weathering resistance in wet heat condition and low temperature environment, and more resistance to chemical attack.
Embodiment
Embodiment 1
1st step, the aqueous solution 3g of epoxy resin 45g, m-trifluoromethyl phenol 1g, tensio-active agent 1g, 5wt% sodium hydroxide to be mixed with ethyl acetate 10g, be heated to 80 DEG C of reactions, after reaction terminates, evaporation of solvent, adds tetraethyl orthosilicate 12g, then after adding water washing, removing aqueous phase, organic phase is evaporated to dry, obtains the first mixed solution, for subsequent use;
2nd step, ethylene-vinyl alcohol copolymer 5g, Alumina gel 3g, dicumyl peroxide 1g, diethanolamine 2g, dehydrated alcohol 8g to be mixed, as the second mixed solution;
3rd step, the first mixed solution, diglycidylether 3g, antioxidant 3g to be mixed, be then warming up to 60 DEG C, drip in the second mixing solutions, after dropwising, at 70 DEG C, be incubated 5 hours, insulation terminates rear cooling discharge, obtains the weatherability coating of epoxide terrace.
Embodiment 2
1st step, the aqueous solution 8g of epoxy resin 60g, m-trifluoromethyl phenol 5g, tensio-active agent 5g, 15wt% sodium hydroxide to be mixed with ethyl acetate 15g, be heated to 90 DEG C of reactions, after reaction terminates, evaporation of solvent, adds tetraethyl orthosilicate 18 parts, then after adding water washing, removing aqueous phase, organic phase is evaporated to dry, obtains the first mixed solution, for subsequent use;
2nd step, ethylene-vinyl alcohol copolymer 10g, Alumina gel 8g, dicumyl peroxide 5g, diethanolamine 4g, dehydrated alcohol 15g to be mixed, as the second mixed solution;
3rd step, the first mixed solution, diglycidyl ether of ethylene glycol 5g, antioxidant 5g to be mixed, be then warming up to 65 DEG C, drip in the second mixing solutions, after dropwising, at 80 DEG C, be incubated 8 hours, insulation terminates rear cooling discharge, obtains the weatherability coating of epoxide terrace.
Embodiment 3
1st step, the aqueous solution 5g of epoxy resin 50g, m-trifluoromethyl phenol 3g, tensio-active agent 3g, 10wt% sodium hydroxide to be mixed with ethyl acetate 12g, be heated to 85 DEG C of reactions, after reaction terminates, evaporation of solvent, adds tetraethyl orthosilicate 15g, then after adding water washing, removing aqueous phase, organic phase is evaporated to dry, obtains the first mixed solution, for subsequent use;
2nd step, ethylene-vinyl alcohol copolymer 8g, Alumina gel 6g, dicumyl peroxide 3g, diethanolamine 3g, dehydrated alcohol 12g to be mixed, as the second mixed solution;
3rd step, the first mixed solution, hexylene glycol glycidyl ether 4g, antioxidant 4g to be mixed, be then warming up to 62 DEG C, drip in the second mixing solutions, after dropwising, at 75 DEG C, be incubated 7 hours, insulation terminates rear cooling discharge, obtains the weatherability coating of epoxide terrace.
Reference examples 1
Be with the difference of embodiment 3: do not add tetraethyl orthosilicate.
1st step, the aqueous solution 5g of epoxy resin 50g, m-trifluoromethyl phenol 3g, tensio-active agent 3g, 10wt% sodium hydroxide to be mixed with ethyl acetate 12g, be heated to 85 DEG C of reactions, after reaction terminates, evaporation of solvent, after adding water washing again, removing aqueous phase, is evaporated to dry by organic phase, obtain the first mixed solution, for subsequent use;
2nd step, ethylene-vinyl alcohol copolymer 8g, Alumina gel 6g, dicumyl peroxide 3g, diethanolamine 3g, dehydrated alcohol 12g to be mixed, as the second mixed solution;
3rd step, the first mixed solution, hexylene glycol glycidyl ether 4g, antioxidant 4g to be mixed, be then warming up to 62 DEG C, drip in the second mixing solutions, after dropwising, at 75 DEG C, be incubated 7 hours, insulation terminates rear cooling discharge, obtains the weatherability coating of epoxide terrace.
Reference examples 2
Be with the difference of embodiment 3: do not add ethylene-vinyl alcohol copolymer.
1st step, the aqueous solution 5g of epoxy resin 50g, m-trifluoromethyl phenol 3g, tensio-active agent 3g, 10wt% sodium hydroxide to be mixed with ethyl acetate 12g, be heated to 85 DEG C of reactions, after reaction terminates, evaporation of solvent, adds tetraethyl orthosilicate 15g, then after adding water washing, removing aqueous phase, organic phase is evaporated to dry, obtains the first mixed solution, for subsequent use;
2nd step, Alumina gel 6g, dicumyl peroxide 3g, diethanolamine 3g, dehydrated alcohol 12g to be mixed, as the second mixed solution;
3rd step, the first mixed solution, hexylene glycol glycidyl ether 4g, antioxidant 4g to be mixed, be then warming up to 62 DEG C, drip in the second mixing solutions, after dropwising, at 75 DEG C, be incubated 7 hours, insulation terminates rear cooling discharge, obtains the weatherability coating of epoxide terrace.
Reference examples 3
Be with the difference of embodiment 3: do not add Alumina gel.
1st step, the aqueous solution 5g of epoxy resin 50g, m-trifluoromethyl phenol 3g, tensio-active agent 3g, 10wt% sodium hydroxide to be mixed with ethyl acetate 12g, be heated to 85 DEG C of reactions, after reaction terminates, evaporation of solvent, adds tetraethyl orthosilicate 15g, then after adding water washing, removing aqueous phase, organic phase is evaporated to dry, obtains the first mixed solution, for subsequent use;
2nd step, ethylene-vinyl alcohol copolymer 8g, dicumyl peroxide 3g, diethanolamine 3g, dehydrated alcohol 12g to be mixed, as the second mixed solution;
3rd step, the first mixed solution, hexylene glycol glycidyl ether 4g, antioxidant 4g to be mixed, be then warming up to 62 DEG C, drip in the second mixing solutions, after dropwising, at 75 DEG C, be incubated 7 hours, insulation terminates rear cooling discharge, obtains the weatherability coating of epoxide terrace.
The result that above embodiment 1 ~ 3, comparative example 1 ~ 3 are tested according to " GB22374-2007 terrace coating material " epoxy flooring coating national standard is as shown in table 1.
The performance test data of table 1 embodiment 1 ~ 3 and reference examples
As can be seen from Table 1, weatherability coating provided by the invention all shows good weathering resistance in the environment of damp and hot destruction, low temperature and chemical corrosion.As can be seen from embodiment and comparative example 1, do not add tetraethyl orthosilicate and coating can be caused not low temperature resistant; As can be seen from embodiment and comparative example 2, do not add ethylene-vinyl alcohol copolymer and can cause coating not resistance to chemical attack; As can be seen from embodiment and comparative example 3, do not add Alumina gel and can cause coating non-refractory.
Claims (6)
1. a preparation method for the weatherability coating of epoxide terrace, is characterized in that, comprises the steps:
1st step, by weight, the aqueous solution 3 ~ 8 parts and the organic solvent 10 ~ 15 parts of epoxy resin 45 ~ 60 parts, m-trifluoromethyl phenol 1 ~ 5 part, 1 ~ 5 part, tensio-active agent, alkali metal hydroxide is mixed, reacting by heating, after reaction terminates, evaporation of solvent, add tetraethyl orthosilicate 12 ~ 18 parts, after adding water washing again, removing aqueous phase, is evaporated to dry by organic phase, obtain the first mixed solution, for subsequent use;
2nd step, by weight, ethylene-vinyl alcohol copolymer 5 ~ 10 parts, Alumina gel 3 ~ 8 parts, dicumyl peroxide 1 ~ 5 part, diethanolamine 2 ~ 4 parts, organic solvent 8 ~ 15 parts to be mixed, as the second mixed solution;
3rd step, by weight, first mixed solution, thinner 3 ~ 5 parts, antioxidant 3 ~ 5 parts are mixed, then 60 ~ 65 DEG C are warming up to, drip in the second mixing solutions, after dropwising, at 70 ~ 80 DEG C, be incubated 5 ~ 8 hours, insulation terminates rear cooling discharge, obtains the weatherability coating of epoxide terrace.
2. the preparation method of the weatherability coating of a kind of epoxide terrace according to claim 1, is characterized in that, in the 1st step, described alkali metal hydroxide is sodium hydroxide, and the concentration of the aqueous solution of described sodium hydroxide is 5 ~ 15wt%.
3. the preparation method of the weatherability coating of a kind of epoxide terrace according to claim 1, is characterized in that, in the 1st step, described organic solvent is ethyl acetate.
4. the preparation method of the weatherability coating of a kind of epoxide terrace according to claim 1, is characterized in that, in the 1st step, the Heating temperature of described reacting by heating is 80 ~ 90 DEG C.
5. the preparation method of the weatherability coating of a kind of epoxide terrace according to claim 1, is characterized in that, in the 2nd step, described organic solvent is dehydrated alcohol.
6. the preparation method of the weatherability coating of a kind of epoxide terrace according to claim 1, it is characterized in that, in 3rd step, described thinner is selected from the mixture of one or more in diglycidylether, diglycidyl ether of ethylene glycol, hexylene glycol glycidyl ether, neopentyl glycol glycidyl ether, glycerin triglycidyl ether.
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| CN201510900869.6A CN105368259A (en) | 2015-12-09 | 2015-12-09 | Preparation method of weather-resistant coating used for epoxy floor level |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1702132A (en) * | 2005-04-05 | 2005-11-30 | 董善刚 | Environmental-friendly aqueous epoxy floor coating |
| CN101659828A (en) * | 2008-08-25 | 2010-03-03 | 武汉菲凡士建材有限公司 | High abrasion-resistant environmental protection floor coating and production and construction process thereof |
| CN104629642A (en) * | 2015-02-12 | 2015-05-20 | 矽照光电（厦门）有限公司 | Preparation method of epoxy resin conductive adhesive for bonding LED chip |
| CN104744952A (en) * | 2015-03-20 | 2015-07-01 | 李孟平 | Modified epoxy resin asphalt material with weatherability and preparation method of modified epoxy resin asphalt material |
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2015
- 2015-12-09 CN CN201510900869.6A patent/CN105368259A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1702132A (en) * | 2005-04-05 | 2005-11-30 | 董善刚 | Environmental-friendly aqueous epoxy floor coating |
| CN101659828A (en) * | 2008-08-25 | 2010-03-03 | 武汉菲凡士建材有限公司 | High abrasion-resistant environmental protection floor coating and production and construction process thereof |
| CN104629642A (en) * | 2015-02-12 | 2015-05-20 | 矽照光电（厦门）有限公司 | Preparation method of epoxy resin conductive adhesive for bonding LED chip |
| CN104744952A (en) * | 2015-03-20 | 2015-07-01 | 李孟平 | Modified epoxy resin asphalt material with weatherability and preparation method of modified epoxy resin asphalt material |
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Application publication date: 20160302 |