Method for preparing silicon-fluorine modified acrylic ester emulsion based on macromolecule organic silicon and fluorine-containing monomer

A technology of acrylate and silicone, which is applied in the field of preparing silicon-fluorine modified acrylate emulsion, which can solve the problems of design control, no molecular chain and latex particle type, etc., and achieve the effect of convenient operation, low cost and simple equipment
CN101100494AInactive Publication Date: 2008-01-09湖北天鹅涂料股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
湖北天鹅涂料股份有限公司
Publication Date
2008-01-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

Preparation of fluorine modified acrylic ester emulsion containing fluorine monomer and based on large molecule is carried out by taking acrylic ester as main monomer, taking large molecule organic silicon and fluorine-contained monomer as functional monomer, taking hydrolytic silicyl vinyl unsaturated silane as coupling cross-linking agent, taking anion and non-ionic emulsion as emulsifying system, taking aqueous evocating agent or oxidation reducing evocating system as evocating agent, regulating by pH regulator, and semi-continuous dripping to obtain final product. The emulsion storage stability is not less than 14 months, actual determination solid content is 35-50%, conversion rate is 93-99%, contact angle to water reaches to 118.3 degree, minimum surface energy is 11.7 mJ / m2 and water absorptive rate is 2.3-7.5%. It has excellent polymer system stability, low surface energy and better water resistance.
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Description

technical field

[0001] The invention relates to a preparation technology of acrylate emulsion with special performance, specifically refers to a technology of preparing silicon-fluorine modified acrylate emulsion by using macromolecular organosilicon and fluorine-containing monomer. Background technique

[0002] Acrylate polymers have the advantages of excellent light resistance, weather resistance, corrosion resistance, good film-forming properties, and good film gloss, and the source of acrylate monomer raw materials is abundant and the cost of raw materials is low. Acrylate is used as an excellent film-forming substance and is widely used in construction, textile, printing, adhesives and other fields. However, acrylate coatings also have some disadvantages, such as poor water resistance, poor stain resistance, easy to become brittle at low temperature, and low-temperature viscous strength, which limits its application in some occasions.

[0003] The more effective way to...

Claims

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