Fully Printed Flexible Smart Hybrid Hydrogels

A printable hybrid hydrogel is fabricated by embedding poly(N-isopropylacrylamide) (PNIPAm) microparticles within a water-rich silica-alumina (Si/Al)-based gel matrix. The hybrid gel holds water content of up to 70 wt%, due to its unique Si/Al matrix. The hybrid hydrogel can respond to both heat and electrical stimuli, and can be directly printed layer-by-layer using a commercial 3-dimensional printer, without requiring any curing. The hybrid ink is printed onto a transparent, flexible conductive electrode composed of silver nanoparticles and sustains bending angles of up to 180°, which enables patterning of various flexible devices such as smart windows and a 3D optical waveguide valve.本研究通过将聚(N-异丙基丙烯酰胺)（poly(N-isopropylacrylamide)，PNIPAm）微粒嵌入富水硅铝（Si/Al）基凝胶基质中，成功制备出可打印杂化水凝胶。得益于其独特的硅铝基质结构，该杂化凝胶的含水量最高可达70 wt%。该杂化水凝胶可同时响应热刺激与电刺激，且可通过商用3D打印机直接进行逐层打印，无需任何固化工序。该杂化打印墨水可被打印于由银纳米颗粒构成的透明柔性导电电极之上，可承受最高180°的弯曲角度，从而可用于制备各类柔性器件，例如智能窗与3D光波导阀。

搜集汇总

背景与挑战

背景概述

该数据集描述了一种可打印的智能混合水凝胶，由PNIPAm微颗粒嵌入硅铝基质制成，含水量高达70 wt%，能响应热和电刺激。它可直接通过3D打印技术制造，无需固化，并支持高达180°的弯曲，适用于柔性设备如智能窗户和光波导阀。