Silane coupling agents have a wide range of applications and can be used to treat organic and inorganic materials. After treatment with silane coupling agents, certain properties of the material are significantly improved. Here we take a look at the role of silane coupling agents for new materials and research.

1. Applications in optical materials

The analysis focuses on the effect of silane coupling agents on the performance of aluminium pastes for solar cells. When the silane coupling agent is 2.5%, the surface tension of the organic carrier can be reduced from about 30 mN/m to 25.69 mN/m, which improves the adhesion between aluminium powder particles and between the aluminium film and the silicon wafer, thus reducing scratches and ashing, and further reducing the contact resistance of the aluminium electrode from 0.60 ω to 0.19 ω.
A focus has been placed on the luminescence properties of glass, which is modified with a silane coupling agent and doped with lead-tin-fluorophosphate. The modified SnF2 powder containing astragalus 3 was doped into low melting point lead-tin fluorophosphate glasses to obtain organic/inorganic hybrid glasses doped with astragalus 3 with good projection and homogeneity.

2. Applications in nanomaterials and composites.

Composites are becoming more and more popular due to their excellent properties, but the inherent disadvantages of composites cannot be eliminated. By adding silane coupling agents, composites with better properties can be prepared. The addition of coupling agents to nanomaterials acts like a reinforcer and can significantly improve the properties of the material.
The SiO 2/NR composites were prepared using sodium silicate to prepare nano-SiO 2 emulsions, ammonium chloride to control the particle size and then co-precipitated with natural latex. The silane-coupling agent-treated nano-SiO 2 was uniformly dispersed in the composites and had good mechanical properties. In addition to inorganic composites, silane coupling agents were also incorporated into the preparation of ZnO nanocomposites. The nano-ZnO was modified with silane coupling agents KH 550, KH 560 and KH570. It was shown that the silane coupling agent KH 570 had a good modification effect and the surface of the modified ZnO nanopowders was covered by KH 570 with no significant change in crystalline shape, but the dispersion became better.