Substantial Improvement of the Dielectric Strength of Cellulose–Liquid Composites: Effects of Traps at the Nanoscale Interface

• DOI: 10.1021/acs.jpclett.0c00235
• Publication Date: 2020-02-14T18:46:10Z
• Authors: Guanghao Qu; Huize Cui; Yuanwei Zhu; Liuqing Yang; Shengtao Li
• Keywords: Interface (matter)

The dielectric strength of cellulose–liquid composites is always about several times higher than that the cellulose paper and insulating liquids. However, this experimental phenomenon has not yet been demonstrated theoretically. Herein, spectra characterization, molecular simulation, wave function analysis method provide a new insight role nanoscale interfacial adsorption exclusive for affecting charge separation producing deep-level traps to seriously hinder electromigration under an electric field, which responsible difference in strength. Meanwhile, π conjugation σ–π hyperconjugation effects enhance electrical stability aromatic hydrocarbon In conclusion, trap theory can be used explain correlation between or It expected materials with high manufactured according fundamental study theory.