Unlock instant, AI-driven research and patent intelligence for your innovation.

Styrene-acrylic emulsion, preparation method and application thereof, and latex paint

A styrene-acrylic emulsion and coating technology, applied in latex paints, coatings, etc., can solve problems such as low viscosity and poor emulsion polymerization stability

Inactive Publication Date: 2020-04-10
HUAIHUA UNIV
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to address the problems of poor emulsion polymerization stability and low viscosity of traditional styrene-acrylic emulsion coatings, provide a kind of styrene-acrylic emulsion that can improve emulsion polymerization stability, viscosity is suitable and its preparation method and application, latex paint coating

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Styrene-acrylic emulsion, preparation method and application thereof, and latex paint
  • Styrene-acrylic emulsion, preparation method and application thereof, and latex paint
  • Styrene-acrylic emulsion, preparation method and application thereof, and latex paint

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] The present invention also provides a kind of preparation method of styrene-acrylic emulsion, it comprises the steps:

[0035] S1. Preparation according to the ratio of each raw material component of the styrene-acrylic emulsion described in any embodiment of the present invention.

[0036] Specifically, prepare materials according to the following raw material components in the following mass percentages:

[0037]

[0038] Among them, commercially available styrene, butyl acrylate and acrylic acid monomers mostly contain polymerization inhibitors to prevent self-polymerization, requiring monomer purification. Among them, the polymerization inhibitor in styrene and acrylic acid is hydroquinone, which is removed by alkali washing, and hydroquinone is reacted with sodium hydroxide to generate sodium hydroquinone. The polymerization inhibitor of butyl acrylate is p-hydroxyanisole, which is removed with a sodium hydroxide solution with a concentration of 4%-6%.

[0039...

Embodiment 1

[0061] A kind of preparation method of styrene-acrylic emulsion, it comprises the steps:

[0062] Monomer pre-emulsion preparation:

[0063] In a three-necked flask equipped with a stirrer, 80 g of distilled water was added at a constant temperature, and 4 g (3% equivalent) of a composite emulsifier was added, wherein the mass ratio of SDS and OP-10 was 1:1. Stir rapidly for 20 minutes; add 25 g of styrene, 25 g of butyl acrylate and 0.8 g of acrylic acid in sequence, and continue to stir for 30 minutes to make the emulsification uniform to obtain a milky white monomer pre-emulsion, which is taken out for use.

[0064] Seed Emulsion Polymerization:

[0065] A four-necked flask equipped with an electric stirrer, a spherical reflux condenser, a thermometer and a constant-pressure dropping funnel was placed in a constant temperature water bath, 20 g of distilled water was added, the speed of the stirrer was adjusted to 350 r / min, and the temperature was gradually increased by st...

Embodiment 2

[0070] A preparation method of a styrene-acrylic emulsion, the preparation method is generally the same as that of Example 1, the difference is: in the preparation process of the monomer pre-emulsion, the additions of styrene and butyl acrylate are respectively 20g and 30g.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a styrene-acrylic emulsion, a preparation method and application thereof, and latex paint. The styrene-acrylic emulsion is prepared from the following raw material componentsin percentage by mass: 10.8 to 20.8% of styrene, 13.9 to 23.9% of butyl acrylate, 1.1 to 5.1% of acrylic acid, 1.0 to 5.0% of an emulsifier, 0.3 to 0.7% of an initiator and 53.5 to 63.5% of water, wherein the pH value of the styrene-acrylic emulsion is 6.5 to 7.5, wherein by adding the initiator, latex particles of the prepared styrene-acrylic emulsion can be controlled to be fine and uniform; thefunctional monomer acrylic acid is added, so that all the components in the styrene-acrylic emulsion system can be properly cross-linked, the latex particles can be well distributed in a water phase,and finally the viscosity of the styrene-acrylic emulsion is proper; the polymerization stability of the styrene-acrylic emulsion can be improved through reasonable proportioning of the components.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a styrene-acrylic emulsion, a preparation method and application thereof, and latex paint coatings. Background technique [0002] Styrene-acrylic emulsion paint is a kind of water-based paint. Compared with non-water-based paint, it has the advantages of low toxicity, non-flammability, cheap price, wash resistance, good acid and alkali resistance, high bonding strength, and tough coating film. It is very suitable for As an interior paint. [0003] However, traditional styrene-acrylic emulsion coatings have poor emulsion polymerization stability and low viscosity. Therefore, there is an urgent need for a styrene-acrylic emulsion with high emulsion polymerization stability and suitable viscosity. Contents of the invention [0004] Based on this, it is necessary to address the problems of poor emulsion polymerization stability and low viscosity of traditional styrene-acrylic emulsion coat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D133/08C09D5/02C09D7/61C08F220/18C08F212/08C08F220/06C08F2/26C08F2/30
CPCC08F2/26C08F2/30C08F212/08C08F220/18C08K2003/2241C09D5/022C09D5/024C09D125/14C09D133/08C08L1/284C08K3/34C08K3/22
Inventor 李万伟
Owner HUAIHUA UNIV