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Fluorosilicone acrylates copolymer emulsion as well as preparation method and application thereof

A technology of fluorosilicon acrylate and copolymerization emulsion, which is applied in building components, building insulation materials, construction, etc., can solve the problems that cationic acrylates have not been reported, and improve cold resistance, reduce glass transition temperature, and stabilize good sex effect

Inactive Publication Date: 2013-08-14
江苏阜光工程新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the method of using fluorine-containing silane and vinyl siloxane to prepare cationic acrylate with ultra-low glass transition temperature has not been reported so far.

Method used

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  • Fluorosilicone acrylates copolymer emulsion as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Emulsion polymerization was carried out in a 500ml four-necked reaction flask equipped with a mechanical stirrer, a reflux condenser, and a dropping funnel, and N 2 Protection, 1 / 5 acrylic monomer (n-butyl acrylate + isooctyl acrylate), complex emulsifier (hexadecyltrimethylammonium bromide + fatty alcohol polyoxyethylene ether), initiator ammonium persulfate , added to water, and reacted at 80°C for 0.5h to obtain a slightly blue seed emulsion.

[0026] Mix all the functional monomers vinyltriethoxysiloxane, trifluoropropyltrimethylcyclotrisiloxane and the remaining 4 / 5 acrylic monomers (n-butyl acrylate + isooctyl acrylate) , compound emulsifier (cetyltrimethylammonium bromide + fatty alcohol polyoxyethylene ether), initiator ammonium persulfate, and water are subjected to high-speed shear pre-emulsification for 10 minutes, and then slowly added dropwise to the above seed emulsion. The reaction was carried out at 85° C. for 4 h, and after cooling down, the pH was adj...

Embodiment 2

[0038] Emulsion polymerization was carried out in a 500ml four-necked reaction flask equipped with a mechanical stirrer, a reflux condenser, and a dropping funnel, and N 2 Protection, 1 / 5 acrylic monomer (n-butyl acrylate + isooctyl acrylate), complex emulsifier (hexadecyltrimethylammonium bromide + fatty alcohol polyoxyethylene ether), initiator ammonium persulfate , added to water, and reacted at 80°C for 0.5h to obtain a slightly blue seed emulsion.

[0039] Mix all the functional monomers vinyltriethoxysiloxane, trifluoropropyltrimethylcyclotrisiloxane and the remaining 4 / 5 acrylic monomers (n-butyl acrylate + isooctyl acrylate) , compound emulsifier (cetyltrimethylammonium bromide + fatty alcohol polyoxyethylene ether), initiator ammonium persulfate, and water for high-speed shear pre-emulsification for 10 minutes, and then slowly add to the above seed emulsion. The reaction was carried out at 85° C. for 4 h, and after cooling down, the pH was adjusted to 7.5 with ammoni...

Embodiment 3

[0043] Emulsion polymerization was carried out in a 500ml four-necked reaction flask equipped with a mechanical stirrer, a reflux condenser, and a dropping funnel, and N 2 Protection, 1 / 5 acrylic monomer (n-butyl acrylate + isooctyl acrylate), complex emulsifier (hexadecyltrimethylammonium bromide + water-based ethoxylated non-ionic fluorocarbon surfactant ), the initiator ammonium persulfate was added into water, and reacted at 80°C for 0.5h to obtain a slightly blue seed emulsion.

[0044] Mix all the functional monomers vinyltriethoxysiloxane, trifluoropropyltrimethylcyclotrisiloxane and the remaining 4 / 5 acrylic monomers (n-butyl acrylate + isooctyl acrylate) , composite emulsifier (hexadecyltrimethylammonium bromide + water-based ethoxylated non-ionic fluorocarbon surfactant), initiator ammonium persulfate, and water for high-speed shear pre-emulsification for 10 minutes, and then slowly land value with In the above seed emulsion. The reaction was carried out at 85° C. ...

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Abstract

The invention relates to a fluorosilicone acrylates copolymer emulsion as well as a preparation method and application thereof. Acrylate monomer, cationic emulsifier, nonionic emulgator and initiator are mixed so as to obtain the mixed emulsion, part of the mixed emulsion reacts through stirring at 75-80 DEG C so as to obtain light blue seed emulsion, vinyl siloxane and trifluoro propyl group trimethyl ring trisiloxanes are added into the left mixed emulsion for pre-emulsification, and the pre-emulsification emulsion is dropped into the seed emulsion for reaction after the temperature rises to 81-86 DEG C, so that cationoid fluorosilicone acrylates copolymer emulsion is obtained. The prepared cationoid fluorosilicone acrylates copolymer emulsion has the characteristics of good stability and low glass-transition temperature, can be applied to modification of road asphalt emulsion, and is beneficial to maintenance of road asphalt in alpine region.

Description

technical field [0001] The invention relates to a modification technology of acrylate, in particular to a cationic fluorosilicon acrylate copolymer emulsion with an ultra-low glass transition temperature, a preparation method thereof, and the prepared cationic fluorosilicon acrylate emulsion has vitrification With low transition temperature and good low temperature resistance, it can be applied to modify asphalt emulsion for roads, which is beneficial to the maintenance of road asphalt in alpine regions. Background technique [0002] The acrylate emulsion synthesized with acrylic acid or acrylates as the main raw material is a polymer material with strong adhesion and high film-forming properties. It has excellent film-forming properties, corrosion resistance, chemical resistance, good oil resistance and Weather resistance, its raw material sources are abundant, and its production is easy to implement. However, the structure of acrylic resin is generally a chain-like linear...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/28C08F230/08C08F2/28C08F2/30C08L95/00C08L33/08C08L33/14
Inventor 蔡海军谢洪德胡军
Owner 江苏阜光工程新技术有限公司
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