New 3D Ink Formulation Comprising a Nanocellulose Aerogel Based on Electrostatic Repulsion and Sol-Gel Transition

Polymers, Journal Year: 2025, Volume and Issue: 17(8), P. 1065 - 1065

Published: April 15, 2025

New 3D printing aerogel materials are environmentally friendly and could be used in environmental protection biomedical fields. There is significant research interest cellulose-based aerogels since cellulose biocompatible abundant nature. The gel-like nature of the water suspension suitable for printing; however, complexity resolution geometry quite limited, mainly due to inks’ low viscosity that fails maintain integrity shape after printing. To address this limitation, a carefully optimized formulation incorporating three key ingredients, i.e., nanofibrils (TEMPO-CNFs), 2,2,6,6-tetramethyl-1-piperidinyloxy modified nanocrystals (TEMPO-CNC), sodium carboxymethyl (CMC), utilized enhance structural stability ink. This combination derivatives utilizes electrostatic repulsive forces between negatively charged components form stable uniformly distributed materials. Our ink formulations improve printability retention during optimal DIW We print by employing an all composite using direct writing (DIW) method, plus situ freezing stage layer-by-layer structure, then follow freeze-drying process obtain well-aligned aerogels. have investigated rheological properties varying concentration these obtained exhibit highly ordered microstructures which micropores along direction. study demonstrates strategy overcoming challenges formulating ink, optimizing its properties, with freezing, resulting ordered, structurally robust aligned microporous architectures.

Language: Английский

Preparation, Integration, and piezoresistive performance of MXene materials for multifunctional pressure sensor design

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163035 - 163035

Published: April 1, 2025

Language: Английский