有机/无机掺杂复合水凝胶智能窗的结构设计与性能

The Structural Design and Performance of Organic/Inorganic Hybrid Composite Hydrogel Smart Windows

水凝胶智能窗是一种智能响应窗户,其特点是在临界溶液温度附近能够通过可逆状态转变来调制太阳光,从而达到减少能耗的目的。以羟丙基纤维素、聚(N-异丙基丙烯酰胺)和上铯钨青铜纳米材料为原料,设计制备了一种复合水凝胶(HPC-PNIPAM/Cs_(x)WO_(3))智能窗。该复合水凝胶在低温下透过率为68.93%,高温下则降至0.82%,太阳光调制能力优异。其响应时间缩短至12.9 s,响应效率明显提升。与传统的水凝胶智能窗相比,这种新型窗户不仅具有更适宜的临界溶液温度,还展现出优秀的太阳光调制能力。这为新型水凝胶类智能窗的开发提供了重要的理论基础。

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/Cs_(x)WO_(3))smart window using hydroxypropyl cellulose(HPC),poly(N-isopropylacrylamide)(PNIPAM),and cesium tungsten bronze nanomaterials(Cs_(x)WO_(3))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.