Silica sol has a long history of development. Since Schwerin first used water glass as raw material and electrodialysis to prepare silica sol containing 2.4% silica mass fraction in 1915, the preparation and application of silica sol has been continuously developed and improved. In 1941, Bird used ion exchange method to prepare high-concentration silica sol, and then silica sol was mass-produced and applied.
In the 1960s and 1970s, laboratory research on large-particle silica sol made certain progress. In recent years, with the development of application fields such as chemical polishing, the demand for large-particle silica sol has also been increasing. In order to meet the needs of different fields, scientific researchers continue to explore and improve the preparation methods of large-particle silica sol to improve its performance and stability.
In the future, with the continuous advancement of science and technology and the continuous improvement of people's requirements for material performance, the application prospects of large-particle silica sol will be broader. We have reason to believe that large-particle silica sol will play an important role in more fields and bring more convenience and possibilities to human life and development.