Protective agent for fair-faced concrete decorative surface and preparation method of same
A technology of fair-faced concrete and protective agent, applied in the direction of coating, etc., can solve the problems of single function, poor comprehensive protection of fair-faced concrete, poor weather resistance of fair-faced concrete, etc., and achieve the effects of high transparency, small color difference, and improved weather resistance
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[0020] The preparation method of the silane emulsion in the present invention is as follows: after mixing the emulsifier with deionized water and stirring until completely dissolved, adding organosilane dropwise at a temperature of 45-50° C. and stirring at a constant temperature to obtain the silane emulsion.
[0021] Polyvinylidene fluoride (PVDF) mainly refers to a homopolymer of vinylidene fluoride or a copolymer of vinylidene fluoride and a small amount of other fluorine-containing vinyl monomers. It has the characteristics of both fluororesins and general-purpose resins. In addition to corrosion resistance, high temperature resistance, oxidation resistance, weather resistance, and radiation resistance, it also has special properties such as piezoelectricity, dielectricity, and pyroelectricity.
[0022] Attapulgite, also known as palygorskite or palygorskite, is a hydrous magnesium-rich aluminum silicate clay mineral with chain layer structure. It has good colloidal prope...
Embodiment 1
[0029] The protective agent for clear-faced concrete decorative surface designed in this embodiment includes the following raw materials in parts by mass: 15 parts of silane emulsion, 70 parts of polyvinylidene fluoride emulsion, 13 parts of attapulgite powder, 3 parts of film-forming aid , 2.0 parts of dispersant, 2 parts of thickener, 1 part of defoamer and appropriate amount of water.
[0030] The preparation method of the silane emulsion described in this example is as follows: mix the emulsifier with deionized water, stir until completely dissolved, then add organosilane dropwise at a temperature of 45-50° C., and carry out constant temperature stirring to obtain a silane emulsion.
[0031] The film-forming aid described in this embodiment is a mixture of dibasic acid esters. The dibasic acid ester mixture is formed by mixing dimethyl succinate, dimethyl glutarate and dimethyl adipate at a mass ratio of 1:1:1.
[0032] The dispersant in this embodiment is polyethylene gl...
Embodiment 2
[0035] The protective agent for clear-faced concrete decorative surface designed in this embodiment includes the following raw materials in parts by mass: 16 parts of silane emulsion, 75 parts of polyvinylidene fluoride emulsion, 14 parts of attapulgite powder, 4 parts of film-forming aid , 2.8 parts of dispersant, 5 parts of thickener, 1.8 parts of defoamer and appropriate amount of water.
[0036] The preparation method of the silane emulsion described in this example is as follows: mix the emulsifier with deionized water, stir until completely dissolved, then add organosilane dropwise at a temperature of 45-50° C., and carry out constant temperature stirring to obtain a silane emulsion.
[0037] The film-forming aid described in this embodiment is a mixture of dibasic acid esters. The dibasic acid ester mixture is formed by mixing dimethyl succinate, dimethyl glutarate and dimethyl adipate at a mass ratio of 1:1:1.
[0038] The dispersing agent described in this embodiment...
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Abstract
Description
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