Nano cellulose fiber-based composite membrane as well as preparation method and application thereof

• Main Authors: SONG KAIXU, WANG CAN, CHEN NANNAN, SHAO ZIQIANG, LEE JI-MOO, MA KEBIN, GUAN JIE, XU WENJING, LIU YANHUA, LIANG HONGYE, LIU QIONG
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DERIVATIVES THEREOF; DIAGNOSIS; GENERAL PROCESSES OF COMPOUNDING; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; POLYSACCHARIDES; SURGERY; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The nanocellulose fiber-based composite membrane comprises a plurality of single-layer membrane structures, each single-layer membrane structure is formed by interweaving a plurality of modified nanocellulose fibers, the modified nanocellulose fibers are obtained by grafting nanocellulose fibers with gallic acid through amido bonds, the multiple single-layer membrane structures are overlapped, and the space between every two adjacent single-layer membrane structures is filled with a plurality of MXene. And the plurality of MXenes are connected with the adjacent single-layer film structures through intermolecular force. The composite film integrates excellent temperature induction, humidity induction, piezoelectric induction, piezoresistance induction and toughness, and is low in manufacturing cost and high in environmental friendliness. 一种纳米纤维素纤维基复合膜，包括若干单层膜结构，单层膜结构由若干改性纳米纤维素纤维交织构成，改性纳米纤维素纤维由纳米纤维素纤维通过酰胺键枝接没食子酸得到，若干单层膜结构重叠，且相邻单层膜结构之间填充有若干MXene，若干MXene与相邻单层膜结构之间通过分子间作用力相连。本发明复合膜集优异的温度感应、湿度感应、压电感应、压阻感应、韧性于一体，且制造