Glutaraldehyde-assisted crosslinking in regenerated cellulose films toward high dielectric and mechanical properties
نویسندگان
چکیده
Developing the green dielectric materials satisfies requirement of sustainable development society and economics. In this work, glutaraldehyde (GA)-assisted crosslinking strategy was developed to prepare crosslinked regenerated cellulose (CRC) films, effects different methods, including steps, concentration GA solution time, on mechanical properties CRC films were systematically investigated. Microstructure morphology characterizations show that compared with common RC apparently reduced defects enhanced intermolecular interaction. At 6 vol% time 30 min, film shows lowest loss (0.03 at 1000 Hz, 92.3% smaller than film) highest breakdown strength (336.55 MV m−1, 364.3% higher film), simultaneously, high tensile 76.8 MPa excellent modulus 6.08 GPa, about 240.9% 104% those film, respectively. This work provides new insight in tailoring through constructing structure, which is great significance for fabrication high-performance cellulose-based materials.
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ژورنال
عنوان ژورنال: Cellulose
سال: 2022
ISSN: ['1572-882X', '0969-0239']
DOI: https://doi.org/10.1007/s10570-022-04785-2