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

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

Active Publication Date: 2013-03-20
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) Pre-emulsification of monomers: Weigh 360 parts of vinyl chloride, 180 parts of butyl acrylate, 27 parts of hydroxypropyl acrylate, and 0.6 parts of emulsifier OP-4. Stir and emulsify in the pre-emulsification polymerization reactor for 1 hour to obtain the emulsified product. Monomer solution for use;

[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 lauryl sulfate, 10 parts of OP-100, and anti-gelling agent PVP K-30 3kg is fully stirred and dissolved and then added to step (1) pre-emulsification polymerization reactor; 3.6 parts of initiator ammonium persulfate is dissolved in 150 parts of water for later use;

[0019] (3) Reaction: by volume, first take step (1) pre-emulsified monomer in 1 / 4 kettle, then add step (2) dissolved...

Embodiment 2

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

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

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

[0026] (3) Reaction: According to the volume, first take 1 / 3 of the pre-emulsified monomer in step (1) and then add 1 / 3 of the dis...

Embodiment 3

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

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

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

[0033] (3) Reaction: According to the volume, first take step (1) pre-emulsified monomer 1 / 4 kettle, then add step (2) dissolved initiator ammon...

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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, and mainly relates to a water-based industrial coating used as a base material of water-based ink, belonging to the technical field of industrial coatings. Background technique [0002] Film-forming substances refer to all the remaining components in the coating except for volatile solvents. These are the substances that constitute the coating film. Film-forming substances are divided into two major categories: main film-forming substances and auxiliary film-forming substances. [0003] The main film-forming substances refer to substances that alone can form a certain strength and continuous dry film, such as various resins, drying oils and other organic polymer substances and water glass and other inorganic substances, which are indispensable ingredients for the formation of coating films. Color fillers and certain additives p...

Claims

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Application Information

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Patent Type & Authority Applications(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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