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Main steps of produce PVAc

PVAc dissolving tank            
Raw materials preparation

The main raw material used in PVAc production is a copolymer of vinyl acetate and other monomers such as ethylene or acrylic acid. Other additives such as plasticizers, thickeners, and preservatives may also be added to improve the quality of the final product.

Emulsion polymerization

The copolymer resin is dissolved in water along with other additives and a surfactant to form a stable emulsion. The emulsion is then heated under controlled conditions while continuously stirring. This process triggers a chemical reaction known as polymerization.

PVAc reactor             
PVAc emulsion tank            
Neutralization and adjustment of pH

Once the polymerization is complete, the pH of the PVAc emulsion is adjusted to the desired level by adding an alkaline solution. This is necessary to neutralize any residual acidity in the emulsion and stabilize the glue. The pH value is one of the indicators for quality testing of PVAc.

Filtration and concentration

The PVAc emulsion is then filtered to remove any impurities or particles that may affect the quality of the final product. The filtered PVAc emulsion is then concentrated to the desired solids content by evaporating water from the mixture.

PVAc condenser             
Uses of PVAc

As wood glue, PVAc is known as "white glue" and the yellow as "carpenter's glue".

As paper adhesive during paper packaging conversion.

In handicrafts.

As envelope adhesive.

As wallpaper adhesive.

As a primer for drywall and other substrates

As a gum base in chewing gum.

As an adhesive for cigarette paper.

As the coating layer on Gouda cheese

PVAc products         

PVAc manufacturer

JCT Machinery was established in 2006 at Foshan China that specializes in design, manufacture, and supply of various industrial machinery and equipment, We offer a wide range of machinery for industries such as chemical, pharmaceutical, food processing, and cosmetics.

We have developed and designed cases with multiple partners around the world, our mission is focusing on providing reliable and efficient equipment for industrial processes.Taking a reputation for quality manufacturing, customization options, and excellent after-sales support is one of our goals.

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