Indispensable modification of cellulose has been carried out to produce cyanoethyl cellulose (CEC) to overcome the obstacles of the direct use of cellulose as film form rather than enhancing its physicochemical properties. Barium titanate (BTO) and/or graphene oxide (GO) were used as fillers in the cyanoethyl cellulose matrix to form films of different composite, CEC/GO, CEC/BTO, and CEC/GO/BTO films. XRD and FTIR were used to confirm the composition of the composites. The effects of embedded mass fraction of BTO and/or GO on the thermal stability, mechanical properties, and dielectric properties of the prepared composite films were investigated. The diffuse reflectance spectra showed that the optical band gap energy of the prepared composites was increased from 0.922 eV to 1.003 eV with an indirect allowed type. Dielectric measurements were carried out over the wide range of 4 Hz to 8 MHz. The dielectric constant increased to 1505 at 100 Hz for CEC loaded with graphene oxide and barium titanate while the conductivity was increased to 1.03 * 10⁻³ S cm⁻¹. These observations indicated that this kind of composite would be helpful in various industrial applications with high dielectric permittivity in the embedded capacitor field.

已经对纤维素进行了必不可少的改性以生产氰乙基纤维素（CEC），以克服将纤维素直接用作薄膜形式而不是增强其理化性质的障碍。钛酸钡 (BTO) 和/或氧化石墨烯 (GO) 用作氰乙基纤维素基质中的填料，以形成不同复合材料的薄膜，CEC/GO、CEC/BTO 和 CEC/GO/BTO 薄膜。XRD 和 FTIR 用于确认复合材料的组成。研究了嵌入质量分数的 BTO 和/或 GO 对制备的复合薄膜的热稳定性、机械性能和介电性能的影响。漫反射光谱表明，制备的复合材料的光学带隙能量从 0.922 eV 增加到 1.003 eV，具有间接允许类型。在 4 Hz 至 8 MHz 的宽范围内进行介电测量。负载有氧化石墨烯和钛酸钡的 CEC 在 100 Hz 时的介电常数增加到 1505，同时电导率增加到 1.03 * 10^-3 S cm ^-1。这些观察结果表明，这种复合材料将有助于嵌入式电容器领域中具有高介电常数的各种工业应用。