Summary of the invention
The object of the invention is, for overcoming and solving poor defect and the problem of snappiness that existing fluorine carbon building coating exists, provides a kind of aqueous elastic fluorine carbon building coating and preparation method thereof.The not only environmental protection of this coating, the more important thing is and have the advantages such as weathering resistance, artificial ageing resistance, acid and alkali-resistance, resistance to soiling, chemical-resistant, strong adhesion, the snappiness of overlength is good, scrubbing resistance, elongation at break, tensile strength.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of aqueous elastic fluorine carbon building coating, content is by component by mass percentage: water is 16-31%, and self-control elastic fluorocarbon building emulsion is 40-60%, and efficient film coalescence aid JS-PPH (302) is 2-6%, ultra-fine rutile TiO
2for 5-10%, superfine talcum powder is 1-5%, ultrafine quartz powder is 1-5%, ultrafine kaolin is 1-5%, ultrafine heavy calcium powder is 1-5%, and powerful dispersion agent is 0.1~0.5%, and multi-functional thickening material is 0.1-0.5%, silicone antifoam agent JS-2010S is 0.1~0.4%, and strong disinfecting sanitas 981 is 0.1-0.4% composition.
Wherein, described self-control elastic fluorocarbon building emulsion by mass percentage content by component: deionized water is 38%, vinylidene fluoride is 20%, trifluorochloroethylene is 10%, hydroxyethyl methylacrylate is 10%, methyl methacrylate is 8%, N hydroxymethyl acrylamide is 0.8%, ethylene glycol monoallyl ether is 1%, and vinyl propyl ether is 5%, and isopropyl-ethylene base ether is 4.2%, sodium lauryl sulphate is 0.8%, polyoxyethylene nonylphenol ether OP-10 is 1.5%, and Ammonium Persulfate 98.5 is 0.2%, and sodium bisulfite is 0.5% composition.
Described ultra-fine rutile TiO
2, superfine talcum powder, ultrafine quartz powder, ultrafine kaolin, the particle diameter of ultrafine heavy calcium powder is 1250 mesh sieves.
For achieving the above object, another technical scheme that the present invention takes is:
The preparation method of a kind of aqueous elastic fluorine carbon building coating of the present invention, comprises the following steps:
The preparation method of step 1, described self-control elastic fluorocarbon building emulsion, concrete steps are:
(1) press formula metering by 1/2 deionized water, 1/2 hydroxyethyl methylacrylate, 1/2 methyl methacrylate, 1/2 N hydroxymethyl acrylamide, 1/2 ethylene glycol monoallyl ether, 1/2 vinyl propyl ether, 1/2 isopropyl-ethylene base ether, 1/2 sodium lauryl sulphate, 1/2 polyoxyethylene nonylphenol ether OP-10 adds in emulsification container, with the rotating speed stirring at low speed 25-30min of 700-900r/min, obtain emulsification emulsion;
(2) emulsion after step (1) emulsification is poured in reactor, under the high-speed stirring condition of 1000-2700r/min, add respectively remaining 1/2 deionized water and whole ammonium persulphate and sodium bisulfites, after passing into nitrogen stir for 4-8 time in reactor, be warming up to 65-75 DEG C, add respectively more remaining 1/2 hydroxyethyl methylacrylate, 1/2 methyl methacrylate, 1/2 N hydroxymethyl acrylamide, 1/2 ethylene glycol monoallyl ether, 1/2 vinyl propyl ether, 1/2 isopropyl-ethylene base ether, 1/2 sodium lauryl sulphate, 1/2 polyoxyethylene nonylphenol ether OP-10 stirs 50-60min, pH ≈ 7-8,
(3) then add again respectively whole vinylidene fluorides and trifluorochloroethylene by formula metering, be raised to 90-110 DEG C in temperature, reactor pressure is to stir under 0.7-1.0MPa, and cooling decompression after insulation reaction 10-152h obtains aqueous elastic fluorine carbon building emulsion.
The preparation of step 2, described aqueous elastic fluorine carbon building coating, concrete steps are:
(1) under the condition stirring at rotating speed with 700-900r/min, by formula metering respectively by water, ultra-fine rutile TiO
2, superfine talcum powder adds in container, stirs 20-25min;
(2) under the condition stirring with 1000-2700r/min rotating speed, by formulating of recipe amount, self-control elastic fluorocarbon building emulsion is added in container, continue to stir 30-35min, then respectively ultrafine quartz powder, ultrafine kaolin, ultrafine heavy calcium powder, efficient film coalescence aid JS-PPH (302) are added in container, to stir 35-40min even again;
(3) add respectively more multi-functional thickening material, powerful dispersion agent, silicone antifoam agent JS-2010S, strong disinfecting sanitas 981, stirs 40-50min, obtains aqueous elastic fluorine carbon building coating.
The advantage that the present invention had compared with prior art and beneficial effect be mainly:
1, not only environmental protection of coating of the present invention, the more important thing is and have the advantages such as weathering resistance, artificial ageing resistance, acid and alkali-resistance, resistance to soiling, chemical-resistant, strong adhesion, the snappiness of overlength is good, scrubbing resistance, elongation at break, tensile strength.
2, coating preparation technology of the present invention is simple, easy to operate, and preparation efficiency is high, and production cost is low, and the market competitiveness is strong.
Embodiment
Further describe technical scheme of the present invention below in conjunction with specific embodiment:
The source of each component: water, elastic fluorocarbon building emulsion (self-control), efficient film coalescence aid JS-PPH (302) (Shanghai Jinshan Chemical Co., Ltd.'s technical grade product), ultra-fine rutile TiO
21250 orders (Langfang Landtek Chemical Co., Ltd. technical grade product), ultrafine quartz powder 1250 orders (sea otter micro mist factory of Henan Province technical grade product), superfine talcum powder 1250 orders (Changxing Qing Shenggai industry company limited technical grade product), ultrafine kaolin (Yangzhou Di Lan industrial chemicals company limited technical grade product), ultrafine heavy calcium powder (Sheng Hua fine chemistry industry technical grade product), multi-functional thickening material (Beijing Gongda Weiye Sci-Tech Research Center's technical grade product), powerful dispersion agent (Beijing Gongda Weiye Sci-Tech Research Center's technical grade product), strong disinfecting sanitas 981 (Shanghai Ji Yi Chemical Co., Ltd. technical grade product), silicone antifoam agent JS-2010S (Shanghai Jinshan Chemical Co., Ltd.'s technical grade product).
One, the mass percent content of embodiment 1-5 recipe ingredients is as shown in the table:
Two, the preparation method of embodiment 1-5, step is as follows:
The preparation method of step 1, described self-control elastic fluorocarbon building emulsion, concrete steps are:
(1) be 38% by formulation deionised water, vinylidene fluoride is 20%, and trifluorochloroethylene is 10%, hydroxyethyl methylacrylate is 10%, methyl methacrylate is 8%, and N hydroxymethyl acrylamide is 0.8%, and ethylene glycol monoallyl ether is 1%, vinyl propyl ether is 5%, isopropyl-ethylene base ether is 4.2%, and sodium lauryl sulphate is 0.8%, and polyoxyethylene nonylphenol ether OP-10 is 1.5%, Ammonium Persulfate 98.5 is 0.2%, and sodium bisulfite is 0.5%.First by 1/2 deionized water wherein, 1/2 hydroxyethyl methylacrylate, 1/2 methyl methacrylate, 1/2 N hydroxymethyl acrylamide, 1/2 ethylene glycol monoallyl ether, 1/2 vinyl propyl ether, 1/2 isopropyl-ethylene base ether, 1/2 sodium lauryl sulphate, 1/2 polyoxyethylene nonylphenol ether OP-10 adds in emulsification container, with the rotating speed stirring at low speed 25-30min of 700-900r/min, obtain emulsification emulsion;
(2) emulsion after step (1) emulsification is poured in reactor, under the high-speed stirring condition of 1000-2700r/min, add respectively remaining 1/2 deionized water and whole ammonium persulphate and sodium bisulfites, after passing into nitrogen stir for 4-8 time in reactor, be warming up to 65-75 DEG C, add respectively more remaining 1/2 hydroxyethyl methylacrylate, 1/2 methyl methacrylate, 1/2 N hydroxymethyl acrylamide, 1/2 ethylene glycol monoallyl ether, 1/2 vinyl propyl ether, 1/2 isopropyl-ethylene base ether, 1/2 sodium lauryl sulphate, 1/2 polyoxyethylene nonylphenol ether OP-10 stirs 50-60min, pH ≈ 7-8,
(3) then add again respectively whole vinylidene fluorides and trifluorochloroethylene by formula metering, be raised to 90-110 DEG C in temperature, reactor pressure is to stir under 0.7-1.0MPa, and cooling decompression after insulation reaction 10-152h obtains aqueous elastic fluorine carbon building emulsion.
The preparation of step 2, described aqueous elastic fluorine carbon building coating, concrete steps are:
(1) under the condition stirring at rotating speed with 700-900r/min, by formula metering respectively by water, ultra-fine rutile TiO
2, superfine talcum powder adds in container, stirs 20-25min;
(2) under the condition stirring with 1000-2700r/min rotating speed, by formulating of recipe amount, self-control elastic fluorocarbon building emulsion is added in container, continue to stir 30-35min, then respectively ultrafine quartz powder, ultrafine kaolin, ultrafine heavy calcium powder, efficient film coalescence aid JS-PPH (302) are added in container, to stir 35-40min even again;
(3) add respectively more multi-functional thickening material, powerful dispersion agent, silicone antifoam agent JS-2010S, strong disinfecting sanitas 981, stirs 40-50min, obtains aqueous elastic fluorine carbon building coating.
Three, embodiment 1-5 products obtained therefrom performance test results are as shown in the table: