Polyacrylic acid emulsion hydrophobic coating material with low fluorine content and preparation method thereof
The invention provides a polyacrylic acid emulsion hydrophobic coating material with low fluorine content and a preparation method thereof. The coating comprises 30-50 wt.% of core-shell structure fluorinated polyacrylate resin, 0.6-3 wt.% of an emulsifier and 47-69.4% of water. The preparation meth...
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Main Authors | , , , , , , , , |
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Format | Patent |
Language | English |
Published |
11.03.2015
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Subjects | |
Online Access | Get full text |
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Summary: | The invention provides a polyacrylic acid emulsion hydrophobic coating material with low fluorine content and a preparation method thereof. The coating comprises 30-50 wt.% of core-shell structure fluorinated polyacrylate resin, 0.6-3 wt.% of an emulsifier and 47-69.4% of water. The preparation method uses a core-shell polymerization method to prepare acrylate emulsion with surface containing fluorine, and uses the transfer characteristic of the fluoride-containing group to prepare the hydrophobic coating through the control of film forming conditions. Control on film forming conditions mainly includes film-forming temperature, heating rate and film-forming agent. By controlling the film forming conditions, in the premise of low fluorine content, control of surface migration of fluorine can reduce the surface energy and improve the hydrophobicity of the coating surface. The method can effectively reduce the usage amount of the fluorine-containing monomer, reduce synthesis cost, save energy and protect the environment, and has important application prospect. |
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Bibliography: | Application Number: CN20141460554 |