The Structural Design and Performance of Organic/Inorganic Hybrid Composite Hydrogel Smart Windows
The hydrogel smart window is a type of intelligent responsive window that can modulate sunlight through reversible state transitions near the critical solution temperature,thereby achieving the goal of reducing energy consumption.This paper designs and prepares a composite hydrogel(HPC-PNIPAM/CsxWO3)smart window using hydroxypropyl cellulose(HPC),poly(N-isopropylacrylamide)(PNIPAM),and cesium tungsten bronze nanomaterials(CsxWO3)as raw materials.This composite hydrogel exhibits a high transmittance of 68.93%at low temperatures,which decreases to 0.82%at high temperatures,demonstrating excellent solar modulation capability of 68.11%.Additionally,the response time is shortened to 12.9 seconds,and the response efficiency is improved.Compared to traditional hydrogel smart windows,this novel window not only has a more suitable critical solution temperature but also exhibits excellent solar modulation capabilities.This provides a new avenue for the development of novel hydrogel-based smart windows.