A kind of superhydrophobic coating agent, transparent superhydrophobic coating and its preparation method and application
A super-hydrophobic coating and solvent technology, applied in the field of polymer materials, can solve the problems of high equipment cost, complex preparation process of coating materials, and decrease of coating light transmittance, and achieve simple process method and excellent light transmittance , good adhesion effect
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Embodiment 1
[0072] A kind of superhydrophobic coating agent, its preparation method is as follows:
[0073] (1) Preparation of polymer microspheres: Add 0.03g of sodium lauryl sulfate, 1g of glycidyl methacrylate and 20mL of deionized water into a sealed reaction bottle with clean air, stir and heat up to 70°C, then add 0.06g potassium persulfate, continue stirring reaction 3h; Reaction solution is centrifuged, oven dry, obtain described polymer microsphere; Test the surface morphology of described polymer microsphere by metallographic microscope, obtain its particle size distribution: 0.7~1.3μm.
[0074] (2) Preparation of fluoropolymer: 0.26g azobisisobutyronitrile (AIBN), 4.133g trifluoroethyl methacrylate, 0.165g sodium bisulfite, 1g glycidyl methacrylate and 50mL solvent (a mixed solvent with a volume ratio of water and tetrahydrofuran of 10:3) was added to a sealed reaction bottle that was drained of air, stirred and heated to 70°C and then kept for 2.5 hours. The reaction solution...
Embodiment 2
[0079] A kind of superhydrophobic coating agent, its preparation method is as follows:
[0080] (1) Preparation of polymer microspheres: Add 0.05g sodium stearate, 1g styrene, 20mL water and 5mL tetrahydrofuran into a sealed reaction bottle with clean air, stir and heat up to 80°C, then add 0.05g ammonium persulfate , continue to stir the reaction for 3.5h; centrifuge and dry the reaction solution to obtain the polymer microspheres; test the surface morphology of the polymer microspheres by a metallographic microscope, and obtain a particle size distribution of 0.6-1.0 μm .
[0081] (2) Preparation of fluoropolymer: 0.1g azobisisoheptanonitrile, 5g trifluoroethyl methacrylate, 0.2g sodium thiosulfate, 1g methyl methacrylate and 50mL solvent (water and tetrahydrofuran volume Mixed solvent with a ratio of 10:3) was added into a sealed reaction bottle that was evacuated of air, stirred and heated to 70°C, then kept at temperature for 3 hours, and the reaction solution was centri...
Embodiment 3
[0086] A kind of superhydrophobic coating agent, its preparation method is as follows:
[0087] (1) Preparation of polymer microspheres: 0.03g sodium dodecylbenzene sulfonate, 0.5g glycidyl methacrylate, 0.5g styrene and 25mL deionized water were added to a sealed reaction flask draining the air, Stir and heat up to 70°C, then add 0.05g of potassium persulfate, and continue the stirring reaction for 3h; centrifuge and dry the reaction solution to obtain the polymer microspheres; test the surface morphology of the polymer microspheres by a metallographic microscope. Appearance, obtained 500 times metallographic micrograph as shown in figure 1 shown, from figure 1 It can be seen that the particle size distribution is 0.7-1.3 μm.
[0088] (2) Preparation of fluoropolymer: 0.20g sodium persulfate, 4.0g trifluoroethyl methacrylate, 0.12g sodium bisulfite, 1g glycidyl methacrylate and 50mL solvent (water and tetrahydrofuran volume ratio 10:3 mixed solvent) was added into a sealed...
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