Vorobiov Vitaly K, Sokolova Maria P, Bobrova Natalya V, Elokhovsky Vladimir Yu, Smirnov Michael A
Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia.
Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia.
Carbohydr Polym. 2022 Aug 15;290:119475. doi: 10.1016/j.carbpol.2022.119475. Epub 2022 Apr 10.
3D-printing of stimuli-responsible electroactive gels containing biopolymers, such as cellulose nanocrystals (CNC), is a prospective area of material science. Deep eutectic solvents (DES) have shown a potential interest for applications in electroactive materials as well as for processing of cellulose. In this work, CNC obtained by two methods of processing microcrystalline cellulose were used for preparation of inks containing 6-15 wt% of CNC in polymerizable DES based on choline chloride/acrylic acid. The impact of rheological properties of the inks on 3D-printability was evaluated. The effect of CNC content on the morphology and ionic conductivity of 3D-printed electroactive composite gels was investigated using atomic force microscopy and impedance spectroscopy measurements. The potential application of the obtained materials for designing of a 3D-printed tactile sensor have been demonstrated.
3D打印含有生物聚合物（如纤维素纳米晶体（CNC））的刺激响应性电活性凝胶是材料科学的一个前沿领域。低共熔溶剂（DES）在电活性材料应用以及纤维素加工方面已显示出潜在的应用价值。在这项工作中，通过两种微晶纤维素加工方法获得的CNC被用于制备在基于氯化胆碱/丙烯酸的可聚合DES中含有6-15 wt% CNC的油墨。评估了油墨流变性能对3D打印性的影响。使用原子力显微镜和阻抗谱测量研究了CNC含量对3D打印电活性复合凝胶的形态和离子电导率的影响。已证明所获得的材料在设计3D打印触觉传感器方面的潜在应用。
