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[Chemical Knowledge]：Production and manufacturing method and process flow of pure acrylic emulsion

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The manufacturing method
of pure acrylic emulsion
1. Introduction

Pure acrylic emulsion is an important chemical production raw material, widely used in coatings, adhesives, textile treatment and other fields. Because of its excellent water resistance, chemical resistance, weather resistance and other advantages, it is popular. This article will introduce the manufacturing method of pure acrylic emulsion in detail.

2. materials and equipment

1. Materials: acrylic monomer, initiator, emulsifier, etc.
2. Equipment: reaction kettle, stirrer, thermometer, dropping device, etc.

3. Manufacturing Method

1. Pre-emulsification

Acrylic acid monomer, emulsifier, etc. are added into the reaction kettle, and pre-emulsified after stirring. The purpose of pre-emulsification is to make the monomer form a stable emulsion in water, which provides a good basis for the subsequent polymerization reaction.

2. Polymerization

On the basis of pre-emulsification, initiator is added to raise the temperature of the reactor to initiate the polymerization of acrylic acid monomer. During the polymerization reaction, it is necessary to control the reaction rate and temperature to maintain a stable reaction process.

3. Post-treatment

After the polymerization reaction is completed, the product is post-treated, including steps such as cooling, pH adjustment, filtration, etc., to obtain the final pure acrylic emulsion product.

4. Precautions

1. Strictly control the reaction temperature and speed to prevent the emergence of violent polymerization, gel and other phenomena.
2. Select the appropriate emulsifier and initiator to ensure the stability of the emulsion and the smooth progress of the polymerization reaction.
3. Adjust the pH value to neutral during the post-treatment process to avoid corrosion to the equipment and users.

5. conclusion

pure acrylic emulsion as an important raw material for chemical production, the process parameters should be strictly controlled in the manufacturing process to ensure the quality and stability of the product. Through the manufacturing method introduced in this paper, the pure acrylic emulsion with excellent performance can be produced, which provides reliable raw material guarantee for the application in related fields.

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