Silica sol, a common inorganic nanomaterial, is widely used in the industrial field. Surface-modified silica sol, which undergoes chemical or physical treatment on the surface of silica sol particles, has further improved its performance and applicability, becoming a "new favorite" in the material field.
Surface modification is mainly achieved by introducing functional groups, such as amino groups and hydroxyl groups. This allows silica sol to not only retain its original high dispersibility and stability but also gain new properties, such as enhanced compatibility with organic materials. In the coating industry, adding it can make coatings more wear-resistant and anti-aging; in the electronics field, it can be used for chip packaging to improve heat dissipation and insulation effects; in the biomedical field, surface-modified silica sol can also be used as a drug carrier to facilitate targeted drug delivery.
Nowadays, with the growth of demand for green manufacturing and high-end materials, the research and development of surface-modified silica sol have made continuous breakthroughs. It is expected to play an important role in more emerging fields in the future and inject new impetus into industrial upgrading.