Preparation and application of high-temperature-resistant fungicide

Nano-Ag was deposited onto the surface of T-ZnOw through a process combining dopamine deposition with the chemical reduction of silver，yielding a novel silver-zinc fungicide. The study explored the impact of dopamine deposition duration and silver ammonia solution concentration on the deposition efficacy of nano-Ag，ultimately determining the optimal reaction conditions. The incorporation of this silver-zinc fungicide enhance the antifungal properties of the silicone sealant，without compromising its heat resistance or adhesion. Furthermore，the mold-proof rating of the aged sealant remain at level 1，demonstrating the excellent thermal stability of the T-ZnOw/PDA/Ag fungicide.