Chloroethylene-butyl acrylate-hydroxypropyl acrylate copolymer emulsion and preparation method thereof

The technology of hydroxypropyl acrylate and butyl acrylate is applied in vinyl chloride-butyl acrylate-hydroxypropyl acrylate copolymer emulsion and its preparation, and in the field of water-based industrial coatings, and can solve the problems of no durability, easy shedding, chemical reaction, etc. , to achieve the effect of low cost, high gloss and hard film

Active Publication Date: 2015-04-29
WUXI HONGHUI NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most of the coatings produced by domestic manufacturers and imported from foreign countries are organic coatings, which are roughly divided into water-based and oil-based coatings according to categories. However, no matter which coating has unresolved shortcomings, such as no durability, easy to fall off, easy Chemical reactions with the external environment, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The preparation method of vinyl chloride-butyl acrylate-hydroxypropyl acrylate copolymer emulsion, the steps are as follows:

[0017] (1) Monomer pre-emulsification: Weigh 360 parts of vinyl chloride, 180 parts of butyl acrylate, 27 parts of hydroxypropyl acrylate, and 0.6 parts of emulsifier OP-4, and stir and emulsify in the pre-emulsification polymerization reactor for 1 hour to obtain emulsified The monomer solution of standby;

[0018] (2) Preparation and addition of additives: Take 250 parts of deionized water, 6-12 parts of emulsifier sodium dodecylbenzene sulfonate, 6 parts of sodium dodecyl sulfate, 10 parts of OP-100, and glue-preserving agent PVP K-30 3kg is fully stirred and dissolved, then added to step (1) pre-emulsification polymerization reactor; take 3.6 parts of initiator ammonium persulfate and dissolve it in 150 parts of water for later use;

[0019] (3) Reaction: by volume, first take 1 / 4 of the pre-emulsified monomer in step (1) into the kettle, t...

Embodiment 2

[0023] The preparation method of vinyl chloride-butyl acrylate-hydroxypropyl acrylate copolymer emulsion, the steps are as follows:

[0024] (1) Monomer pre-emulsification: Weigh 480 parts of vinyl chloride, 360 parts of butyl acrylate, 72 parts of hydroxypropyl acrylate, and 6 parts of emulsifier OP-4, and stir and emulsify in the pre-emulsification polymerization reactor for 2 hours to obtain emulsified The monomer solution of standby;

[0025] (2) Preparation and addition of additives: Take 250 parts of deionized water, 12 parts of emulsifier sodium dodecylbenzene sulfonate, 12 parts of sodium dodecyl sulfate, 12 parts of OP-100, and glue-preserving agent PVP K- 30 3kg is fully stirred and dissolved, then added to step (1) pre-emulsification polymerization reactor; take 4.8 parts of initiator ammonium persulfate and dissolve it in 150 parts of water for later use;

[0026] (3) Reaction: by volume, first take 1 / 3 of the pre-emulsified monomer in step (1) into the kettle, th...

Embodiment 3

[0030] The preparation method of vinyl chloride-butyl acrylate-hydroxypropyl acrylate copolymer emulsion, the steps are as follows:

[0031] (1) Monomer pre-emulsification: Weigh 420 parts of vinyl chloride, 260 parts of butyl acrylate, 58 parts of hydroxypropyl acrylate, and 3 parts of emulsifier OP-4, and stir and emulsify in the pre-emulsification polymerization reactor for 2 hours to obtain emulsified The monomer solution of standby;

[0032] (2) Preparation and addition of additives: Take 250 parts of deionized water, 8 parts of emulsifier sodium dodecylbenzene sulfonate, 10 parts of sodium dodecyl sulfate, 11 parts of OP-100, and the preservative PVP K- 30 3kg is fully stirred and dissolved, then added to step (1) pre-emulsification polymerization reactor; take 4.2 parts of initiator ammonium persulfate and dissolve it in 150 parts of water for later use;

[0033] (3) Reaction: by volume, first take 1 / 4 of the pre-emulsified monomer in step (1) into the kettle, then add...

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Abstract

The invention relates to chloroethylene-butyl acrylate-hydroxypropyl acrylate copolymer emulsion and a preparation method thereof, and mainly relates to a water-based industrial coating for water-based ink base materials, belonging to the technical field of industrial coatings. The copolymer emulsion is prepared by taking chloroethylene, butyl acrylate and hydroxypropyl acrylate as monomers, sodium dodecyl benzene sulfonate, sodium dodecyl sulfate and nonionic surfactants OP-100 and OP-4 as emulsifying agents, PVPK-30 as a colloid protecting agent and water-soluble potassium persulfate and ammonium persulfate as initiating agents to carry out polymerization. The copolymer emulsion has the advantages that compared with other water-based coatings, the copolymer emulsion, used as a water-based industrial coating, has better waterproofing property and acid, alkali and salt corrosion resistance, hard and tough film, good wear and scratching resistance, high gloss and relatively low cost, has qualified mechanical stability, calcium ion stability and heat stability and is free from demulsification and delamination after being stored for a year.

Description

technical field [0001] The invention relates to a vinyl chloride-butyl acrylate-hydroxypropyl acrylate copolymer emulsion and a preparation method thereof, mainly relates to a water-based industrial coating used for water-based ink base materials, 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 water glass, which are indispensable components for forming a coating film. Color fillers and certain additives play an ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F214/06C08F220/18C08F220/28C08F2/30C08F2/26C09D127/06C09D11/00
Inventor 李川项洪伟申淑婷郭运华
Owner WUXI HONGHUI NEW MATERIALS TECH
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