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VCM (Vinyl Chloride Monomer)-2-EHA (ethylhexyl acrylate)-organosilicone copolymerization emulsion and preparation method thereof

A VCM-2-EHA-, copolymer emulsion technology, applied in coatings, anti-corrosion coatings, etc., can solve the problems of high hardness of the paint film and high cost of anti-corrosion coatings, and achieve high hardness of the paint film, good adhesion, and good waterproof. and the effect of acid, alkali and salt corrosion resistance

Active Publication Date: 2013-03-27
WUXI HONGHUI NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies of the high cost of anti-corrosion coatings, provide a kind of VCM-2-EHA-organic silicon copolymerization emulsion and preparation method thereof, the water-based coating that this emulsion is made is better than other water-based coatings of the same category and grade It has better waterproof and acid, alkali and salt corrosion resistance, good adhesion, high hardness of paint film, and low cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The preparation method of the VCM-2-EHA-organic silicon copolymer emulsion, the steps are as follows:

[0017] (1) Monomer pre-emulsification: Weigh 60 parts of vinyl chloride, 20 parts of isooctyl acrylate, 5 parts of vinyltrimethoxysilane, and 0.5 parts of emulsifier OP-4, stir and emulsify in a pre-emulsification polymerization reactor for 1 hour, Obtain the emulsified monomer solution for subsequent use;

[0018] (2) Preparation and addition of additives: Take 60 parts of deionized water, 2 parts of reactive emulsifier allyl nonylphenol polyvinyl ether ammonium sulfate, and 0.5 parts of sodium lauryl sulfate, stir and dissolve, then add the step ( 1) In the pre-emulsification polymerization reactor; take 1 part of the initiator ammonium persulfate and dissolve it in 20 parts of water for later use;

[0019] (3) Reaction: by volume, first take 1 / 5 of the pre-emulsified monomer in step (1) in the polymerization kettle, then add 1 / 3 of the dissolved initiator ammonium...

Embodiment 2

[0023] The preparation method of the VCM-2-EHA-organic silicon copolymer emulsion, the steps are as follows:

[0024] (1) Monomer pre-emulsification: Weigh 80 parts of vinyl chloride, 30 parts of isooctyl acrylate, 15 parts of vinyltrimethoxysilane, and 3 parts of emulsifier OP-4, and stir and emulsify in the pre-emulsification polymerization reactor for 2 hours. Obtain the emulsified monomer solution for subsequent use;

[0025] (2) Preparation and addition of additives: Take 80 parts of deionized water, 5 parts of reactive emulsifier allyl nonylphenol polyvinyl ether ammonium sulfate, and 1.5 parts of sodium lauryl sulfate, and add them after fully stirring and dissolving ( 1) In the pre-emulsification polymerization reactor; take 3 parts of the initiator ammonium persulfate and dissolve it in 40 parts of water for later use;

[0026] (3) Reaction: by volume, first take 1 / 4 of the pre-emulsified monomer in step (1) in the polymerization kettle, then add 1 / 4 of the dissolved...

Embodiment 3

[0030] The preparation method of the VCM-2-EHA-organic silicon copolymer emulsion, the steps are as follows:

[0031] (1) Monomer pre-emulsification: Weigh 70 parts of vinyl chloride, 25 parts of isooctyl acrylate, 10 parts of vinyltrimethoxysilane, 2 parts of emulsifier OP-4, stir and emulsify in the pre-emulsification polymerization reactor for 1.5h , to obtain the emulsified monomer solution for subsequent use;

[0032] (2) Preparation and addition of additives: Take 70 parts of deionized water, 4 parts of reactive emulsifier allyl nonylphenol polyvinyl ether ammonium sulfate, and 1 part of sodium lauryl sulfate, and add them after fully stirring and dissolving ( 1) In the pre-emulsification polymerization reactor; take 2 parts of the initiator ammonium persulfate and dissolve it in 30 parts of water for later use;

[0033] (3) Reaction: by volume, first take 1 / 5 of the pre-emulsified monomer in step (1) in the polymerization kettle, then add 1 / 3 of the dissolved initiator...

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Abstract

The invention relates to a VCM (Vinyl Chloride Monomer)-2-EHA (ethylhexyl acrylate)-organosilicone copolymerization emulsion and a preparation method thereof, and mainly relates to a production method of an emulsion used in a water-based industrial coating stock, belonging to the technical field of industrial coatings. According to the preparation method, with vinyl chloride, 2-ethylhexyl acrylate and vinyl trimethoxy silane as monomers and allyloxy nonylphenol polyoxyethylene ether ammonium sulfate, lauryl sodium sulfate and OP-4 as emulsifying agents and water-soluble ammonium persulfate as an initiating agent, the VCM-2-EHA-organosilicone copolymerization emulsion is prepared by a polymerization reaction. Compared with other water-based coatings, the VCM-2-EHA-organosilicone copolymerization emulsion has better water resisting property, acid-base salt corrosion resisting property, low cost and high performance cost ratio when used as a water-based industrial coating; in addition, a coating film is high and has wear and scratching resistance properties,. The VCM-2-EHA-organosilicone copolymerization emulsion is qualified in mechanical stability, calcium ion stability and heat stability, and is stored for one year without demulsification and demixing.

Description

technical field [0001] The invention relates to a VCM-2-EHA-organic silicon copolymer emulsion and a preparation method thereof, that is, a vinyl chloride-isooctyl acrylate-vinyl trimethoxysilane copolymer emulsion and a preparation method thereof. The invention mainly relates to a base material that can be used for water-based anticorrosion industrial coatings, and belongs to the technical field of industrial coatings. Background technique [0002] The film-forming substances refer to all the remaining components in the paint except for the volatile solvents, which are the substances that make up the coating film. Film-forming substances are divided into two categories: main film-forming substances and auxiliary film-forming substances. [0003] The main film-forming substances refer to substances that can form a continuous dry film with a certain strength alone, such as organic polymer substances such as various resins and drying oils, and inorganic substances such as wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/06C09D5/08C08F214/06C08F220/18C08F230/08C08F2/26C08F4/30
Inventor 李川项洪伟申淑婷郭运华
Owner WUXI HONGHUI NEW MATERIALS TECH
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