There is a close connection between the microstructure and properties of silica. The following are some key aspects regarding the relationship between silica microstructure and properties:

First of all, the microstructure of silica mainly presents as a three-dimensional network crystal formed by covalent bonds between silicon atoms and oxygen atoms. The silicon atom is in the center of the regular tetrahedron and combines with the four oxygen atoms at the vertex corners of the regular tetrahedron to form a regular tetrahedron. The Si-O bond repeats in space to form a "macromolecule". This structure gives silica a unique set of physical and chemical properties.

Secondly, the specific surface area and particle size of silica have an important impact on its performance. The higher the specific surface area of silica, the longer the vulcanization time of the filled vulcanizate, which may have an impact on the processing properties of the rubber. At the same time, the smaller the particle size of silica, the better its dispersion in the compound, which helps to improve the general mechanical properties of the compound.

In addition, the microstructure of silica also determines its electrical insulation, stability and other properties. Silica black has good electrical insulation and stability. These properties play an important role in its applications as rubber reinforcing agent, ink matting agent, coating thickener and thixotropic agent, pesticide carrier, etc.

In general, the microstructure of silica is closely related to its performance. By regulating its microstructure, the performance of silica can be optimized to meet the needs of different application fields. At the same time, the application effect of silica will also be affected by its microstructure, so the relationship between its microstructure and performance needs to be comprehensively considered in practical applications.