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| 纳米纤维素-可聚合低共熔溶剂离子导电弹性体的制备及性能研究 |
| Study on Preparation and Properties of Nanocellulose-Polymerizable Deep Eutectic Solvents Ionic Conductive Elastomer |
| 收稿日期：2023-03-07 |
| DOI：10.11980/j.issn.0254-508X.2023.05.005 |
| 关键词: 离子导电弹性体 可聚合低共熔溶剂 纤维素纳米纤丝 植酸 |
| Key Words:ionic conductive elastomer polymerizable deep eutectic solvents cellulose nanofibril phytic acid |
| 基金项目:国家自然科学基金项目（32071715）。 |
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| 摘要:本研究采用紫外光引发原位聚合法将丙烯酸-氯化胆碱合成的可聚合低共熔溶剂（polymerizable deep eutectic solvents，PDES）与纤维素纳米纤丝（cellulose nanofibril，CNF）气凝胶结合，并引入植酸以增强CNF与PDES之间的结合作用，制得含有丰富的共价键和非共价键（氢键）的离子导电弹性体，通过多种现代仪器分析测试其性能。结果表明，该离子导电弹性体在机械性能（应力和应变分别可达0.38 MPa和1378%）、热稳定性、抗冻性、离子电导性（离子电导率可达3.9 mS/m）和紫外屏蔽性方面具有明显优势，同时具有一定的抗疲劳性和弹性，且基于其组装的柔性应变传感器对人体运动表现出快速、稳定、可逆的信号响应。 |
| Abstract:In this study， polymerizable deep eutectic solvents （PDES） synthesized from acrylic acid and choline chloride was combined with cellulose nanofibril （CNF） aerogels by UV-initiated in situ polymerization， and phytic acid was introduced to enhance the bonding between CNF and PDES. The ionic conductive elastomers containing abundant covalent bonds and non-covalent bonds （hydrogen bonds） were prepared， and their properties were tested by a variety of modern instruments. The results showed that the ionic conductive elastomers had obvious advantages in mechanical properties （stress of 0.38 MPa and strain of 1378%）， thermal stability， frost resistance， ionic conductivity （ionic conductivity up to 3.9 mS/cm） and UV shielding， and had certain fatigue resistance and elasticity. And the flexible strain sensor based on the assembly showed rapid， stable and reversible signal responsed to human movement. |
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