Evonik White Carbon Black R202 is a hydrophobic gas-phase silica modified with dimethyl polysiloxane, which is made from hydrophilic gas-phase silica. The surface of its particles is fixed with long chains of polydimethylsiloxane, which has strong hydrophobicity.

In today's rapidly developing industrial field, the demand for high-performance materials is increasing day by day. Among them, Yingchuang white carbon black R202, as a high-performance thickening and thixotropic agent, plays a crucial role in the fields of adhesives, sealants, epoxy and vinyl resins, adhesive coatings, cable adhesives, etc. This article aims to explore the mechanism of action, performance characteristics, and applications in various fields of Evonik white carbon black R202.

1、 The mechanism of action of Evonik white carbon black R202

Evonik White Carbon Black R202 is a hydrophobic gas-phase silica modified with dimethyl polysiloxane, which is made from hydrophilic gas-phase silica. The surface of its particles is fixed with long chains of polydimethylsiloxane, which has strong hydrophobicity. When this hydrophobic product is dispersed in a polar system, hydrophobic groups can protect the remaining silicon hydroxyl groups on the surface of silica to prevent excessive wetting. This special structure enables Evonik white carbon black R202 to have excellent thickening and thixotropic effects in polar systems.

2、 Performance characteristics of Evonik white carbon black R202

Yingchuang white carbon black R202 has excellent thickening and thixotropic properties, which can maintain the stability of fluid viscosity and thixotropic performance when used in complex polar liquids. In addition, it also has good hydrophobicity and dispersibility, making it easy to mix with various polar liquids to form a uniform dispersion system. The BET specific surface area of Evonik white carbon black R202 is moderate, with small primary particle size and high packing density, making it more efficient and stable in applications.

3、 The application of Evonik white carbon black R202 in various fields

Adhesives and Sealants: Yingchuang White Carbon Black R202 can be used as a thickening and thixotropic agent for adhesives and sealants, improving the viscosity and thixotropic performance of products, as well as improving their processability and usability.

Epoxy and vinyl resins and gel coatings: In the production of epoxy and vinyl resins and gel coatings, Evonik white carbon black R202 can be used as a thickener and thixotropic agent to improve the viscosity and thixotropic performance of products, as well as improve their fluidity and construction performance.

Cable adhesive: Yingchuang white carbon black R202 serves as a thickening and thixotropic agent in cable adhesive, which can improve the viscosity and thixotropic performance of cable adhesive, making it have good application performance in cable adhesive for optical cables.

In summary, as a high-performance thickening and thixotropic agent, Evonik white carbon black R202 plays an important role in the industrial field. Its unique mechanism of action and excellent performance characteristics make it widely applicable in various fields.

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