Hard nano silica material and preparation method thereof

Abstract

The invention discloses a hard nano silica material. The hard nano silica material has the advantages that firstly nano silica is treated with silane to obtain nano silica containing amino in the surface, and then in the caprolactam polymerization process, a caprolactam ring-opening product aminocaproic acid is utilized to react with amino in the surface of nano silica, thus obtaining the high dispersion nano polymer material; ground calcium carbonate, aluminium dihydrogen phosphate, and the like are added to the composite material, thus effectively improving the hardness of the finished product; added stannous octoate, calcium stearate, and the like help improve the stability of the finished product; and the material has strong weatherability and pressure resistance, a wide range of application and excellent comprehensive properties.

Description

technical field [0001] The invention relates to the technical field of nanometer materials, in particular to a hard nanometer silicon dioxide material and a preparation method thereof. Background technique [0002] With the emergence of new technologies, people's research and understanding of polymer-based nanocomposites continue to deepen, and the preparation methods and production processes of nanocomposites are also constantly developing and enriching. In recent years, the methods of preparing polymer-based nanocomposite materials have also developed greatly, mainly including blending method, intercalation method, sol-gel method, in-situ method, masterbatch method, etc.; [0003] The comprehensive properties of polymer-based composites not only depend on the special functionality of the added fillers, but also the dispersion degree, size, compatibility and binding force of the dispersed phase in the matrix material have a greater impact on the comprehensive properties of ...

AI Technical Summary

Problems solved by technology

However, during the application process, the polar groups of the polyamide 6 material make it easy to absorb water, resulting in low dry and low temperature impact strength, poor product stability, easy plastic deformation due to friction, and severe wear. In addition, as a mine The use of engineering plastics does not have antistatic properties and is prone to gas explosions, etc., which affects the dimensional stability, anti-wear and anti-friction properties and electrical properties of its products, which limits its application range;