Polybutadiene

Polybutadiene defoamer is a kind of defoamer specially used in the production of polybutadiene. Its main role is to solve the foam problem generated in the production of polybutadiene, and improve production efficiency and product quality. The following is a detailed introduction about polybutadiene defoamers:

1、 Definition and Overview

• definition：Polybutadiene defoamer is a surfactant, which can reduce the surface tension in polybutadiene liquid, destroy the foam structure, and eliminate foam.

• source：Polybutadiene defoamers are usually developed and produced by professional chemical companies, such as Evonik, Degussa AG, which produces POLYVEST ® 130 and POLYVEST ® 110 and other models of non functionalized liquid polybutadiene defoamers.

2、 Product Features

• Stereotactic structure：The molecular design of polybutadiene defoamers with a stereospecific structure enables them to better disperse and function in liquids.

• Low viscosity：This defoamer has a low viscosity, making it easy to mix and disperse in polybutadiene liquid.

• Non saponifiable：Polybutadiene defoamers have the characteristic of non saponification, which helps maintain their stability and persistence in polybutadiene liquids.

• High content of 1,4-cis double bonds：For example, POLYVEST ® 130 and POLYVEST ® Non functionalized liquid polybutadiene defoamers such as 110 have a high content of 1,4-cis double bonds, approximately 77%, which gives them high reactivity and crosslinking density.

3、 Performance and Application

• performance：

• Excellent chemical resistance

• High waterproof performance

• Excellent electrical insulation

• High cold resistance

• Has good solubility in aliphatic compounds, aromatic compounds, and ethers

• Good compatibility with hydrocarbon resins and rosin resins

• Main application areas：

• Sealing agents and adhesives

• Polymer printing plate

• Offset printing ink

• Rubber plasticizer

• Regenerated rubber adhesive

• PU foam release agent

• Resin system modification

• Plant oil air drying accelerator

• Mortar binder

• Fluorinated rubber

• Defoamer (such as used to solve foam problem in butadiene plant)

4、 Precautions for use

• When using polybutadiene defoamers, it is necessary to follow relevant safety operating procedures to ensure correct use.

• Avoid inhalation or prolonged contact with the skin. In case of accidental contact, rinse immediately with plenty of water.

• Store in a dry, cool, and ventilated place, avoiding direct sunlight and high temperature environments.

5、 Conclusion

Polybutadiene defoamer is an effective additive to solve the foam problem in the production of polybutadiene. Its unique molecular structure and chemical properties give it excellent performance and enable it to play an important role in various application fields. Proper selection and use of polybutadiene defoamers can improve production efficiency, reduce production costs, and enhance product quality.