Environment-friendly hydrophilic elastic fluorocarbon building emulsion and preparation method thereof

Abstract

The invention discloses environment-friendly type hydrophilic elastic fluorocarbon building emulsion and a preparation method thereof. The emulsion consists of the following components in percentage by weight: 34-41% of deionized water, 12-20% of polyvinylidene fluoride, 10-18% of trifluorochlor oethylene, 10-17% of hydroxyethyl methylacrylate, 2-8% of methyl methacrylate, 0.5-2.3% of N-hydroxymethyl acrylamide, 1-6% of ethylene glycol monoene propyl ether, 1-5% of vinyl propyl ether, 1.1-5% of isopropyl vinyl ether, 0.2-1.5% of nonylphenol polyoxyethylene ether OP-10, 0.2-1.2% of ammonium persulfate, 0.1-0.5% of sodium hydrogen sulfite and 0.5-2% of lauryl sodium sulfate. The preparation method comprises the step of firstly, emulsifying and then pouring the emulsified emulsion into a reaction kettle for carrying out reaction. The emulsion disclosed by the invention is environmental friendly, has the advantages of excellent comprehensive performances such as ultra-long weather resistance, acid and alkaline resistance, dirt resistance, chemical resistance, strong adhesion force, good softness, scrubbing resistance, good elongation at break and good tensile strength.

Description

technical field [0001] The invention relates to an environment-friendly hydrophilic elastic fluorocarbon building emulsion and a preparation method thereof, which are mainly used in the field of building exterior wall coatings. Background technique [0002] With the gradual improvement of environmental protection requirements, countries have increasingly strict restrictions on VOC content. Solvent-based fluorocarbon emulsions are subject to certain restrictions. With good environmental effects, water-based fluorocarbons with low VOC content have become the development direction of fluorocarbon emulsions. At present, domestic water-based fluorocarbon emulsions mainly use esters as comonomers, so the fluorine content is low and the elasticity is low. Contents of the invention [0003] The purpose of the present invention is to address the above-mentioned problems, in order to overcome its defects, to provide an environmentally friendly hydrophilic elastic fluorocarbon archit...

AI Technical Summary

Problems solved by technology

At present, domestic water-based fluorocarbon emulsions mainly use esters as comonomers, so the fluorine content is low and the elasticity is low.

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