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Method for modifying styrene-acrylic emulsion through organic silicon

A styrene-acrylic emulsion and silicone technology, applied in the chemical industry, can solve the problems of low coating strength, high film-forming temperature, poor water resistance and weather resistance of ordinary styrene-acrylic emulsions, etc. Sex-enhancing effect

Active Publication Date: 2014-07-16
DONGZHI OASIS ENVIRONMENTAL PROTECTION CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary styrene-acrylic emulsion has poor water resistance and weather resistance, low coating strength and high film-forming temperature.

Method used

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  • Method for modifying styrene-acrylic emulsion through organic silicon
  • Method for modifying styrene-acrylic emulsion through organic silicon
  • Method for modifying styrene-acrylic emulsion through organic silicon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A silicone-modified styrene-acrylic emulsion, consisting of the following components by weight,

[0023]

[0024] The anionic ring-opening polymerization emulsion is the emulsion synthesized by ring-opening emulsion polymerization of cyclosiloxane in the presence of an anionic catalyst.

[0025] The preparation method of silicone acrylic emulsion printing adhesive of the present invention is as follows:

[0026] 1) Weigh each component according to the above formula, first put deionized water, tert-butanol and isopropanol into the reaction kettle, stir and mix evenly, heat to 60-70°C, and prepare solution a for use;

[0027] 2) Dissolve styrene, isooctyl acrylate, ethyl silicate, silicone monomer and anionic ring-opening polymerization emulsion into solution a, stir well, heat while stirring, until the temperature reaches 80-90°C and keep warm for 2 Hour, make solution b stand-by;

[0028] 3) Put vinyl silicone oil, silica airgel and dimethylformamide into solution...

Embodiment 2

[0032] A silicone-modified styrene-acrylic emulsion, consisting of the following components by weight,

[0033]

[0034] The anionic ring-opening polymerization emulsion is the emulsion synthesized by ring-opening emulsion polymerization of cyclosiloxane in the presence of an anionic catalyst.

[0035] The preparation method of silicone acrylic emulsion printing adhesive of the present invention is as follows:

[0036] 1) Weigh each component according to the above formula, first put deionized water, tert-butanol and isopropanol into the reaction kettle, stir and mix evenly, heat to 60-70°C, and prepare solution a for use;

[0037] 2) Dissolve styrene, isooctyl acrylate, ethyl silicate, silicone monomer and anionic ring-opening polymerization emulsion into solution a, stir well, heat while stirring, until the temperature reaches 80-90°C and keep warm for 2 Hour, make solution b stand-by;

[0038] 3) Put vinyl silicone oil, silica airgel and dimethylformamide into solution...

Embodiment 3

[0042] A silicone-modified styrene-acrylic emulsion, consisting of the following components by weight,

[0043]

[0044] The anionic ring-opening polymerization emulsion is the emulsion synthesized by ring-opening emulsion polymerization of cyclosiloxane in the presence of an anionic catalyst.

[0045] The preparation method of silicone acrylic emulsion printing adhesive of the present invention is as follows:

[0046] 1) Weigh each component according to the above formula, first put deionized water, tert-butanol and isopropanol into the reaction kettle, stir and mix evenly, heat to 60-70°C, and prepare solution a for use;

[0047] 2) Dissolve styrene, isooctyl acrylate, ethyl silicate, silicone monomer and anionic ring-opening polymerization emulsion into solution a, stir well, heat while stirring, until the temperature reaches 80-90°C and keep warm for 2 Hour, make solution b stand-by;

[0048] 3) Put vinyl silicone oil, silica airgel and dimethylformamide into solution...

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Abstract

The invention provides a method for modifying styrene-acrylic emulsion through organic silicon, relating to the field of chemical engineering technologies. The method comprises steps of (1) firstly putting deionized water, tertiary butanol and isopropanol into a reaction kettle and mixing uniformly through stirring, and heating up to 60-70DEG C, so as to prepare a solution a; (2) dissolving styrene, 2-ethylhexyl acrylate, ethyl silicate, organosilicone monomer and anion ring opening polymerization emulsion into the solution a, fully mixing through stirring till the temperature rises up to 80-90DEG C, and preserving heat for 2 hours, so as to prepare a solution b; (3) putting vinyl silicone oil, silicon dioxide aerogel and dimethyl formamide into the solution b, stirring for 30 minutes to be mixed uniformly to prepare a solution c; (4) controlling the temperature of the solution c at 60-65 DEG C, then dripping potassium peroxodisulfate for 0.5 hour, and cooling to room temperature, so as to prepare a solution d; (5) regulating the pH value of the solution d to be neutral with ammonia water, filtering the discharged material so as to prepare the styrene-acrylic emulsion. Due to the addition of organic silicon monomer, ethyl silicate and the like, the degree of crosslinking of a latex film is improved, and the weather fastness of the styrene-acrylic emulsion is greatly improved.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to an organosilicon-modified styrene-acrylic emulsion. Background technique [0002] As an important chemical raw material and intermediate, styrene-acrylic emulsion is widely used in the fields of coatings, textiles, papermaking and adhesives. However, ordinary styrene-acrylic emulsion has poor water resistance and weather resistance, low coating strength, and high film-forming temperature. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a silicone-modified styrene-acrylic emulsion with simple ingredients, which is economical and environment-friendly. [0004] The technical problem to be solved by the present invention adopts the following technical solutions to realize: [0005] A silicone-modified styrene-acrylic emulsion, consisting of the following components by weight, [0006] [0007] The preferre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/12C08F212/08C08F220/18C08K3/36
Inventor 陈建宇
Owner DONGZHI OASIS ENVIRONMENTAL PROTECTION CHEM
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