Abstract This study presents experimental results of investigating dielectric properties of ferroelectric composite prepared from Rochelle salt and cellulose nanoparticles under a weak electric field of 1 V/cm from 5 to 55 °C. It was found that along with the upper phase transition coinciding with those for bulk Rochelle salt (24 °C) detected due to the presence of Rochelle salt volume part and clusters, the strong interaction at cellulose/Rochelle salt interfaces led to the appearance of an additional phase transition at higher temperature (47 °C). Correspondingly, two relaxation regions for Rochelle clusters and cellulose/Rochelle salt interfaces in the frequency range of 102–107 Hz were observed.

中文翻译：

---

纤维素纳米颗粒与罗谢尔盐混合制成的环保铁电纳米复合材料的介电性能

摘要 本研究展示了由罗谢尔盐和纤维素纳米颗粒制备的铁电复合材料在 1 V/cm 的弱电场下在 5 至 55 °C 下的介电性能的实验结果。发现由于存在罗谢尔盐体积部分和簇，随着上相变与本体罗谢尔盐（24°C）的相变重合，纤维素/罗谢尔盐界面处的强相互作用导致出现在较高温度 (47 °C) 下的额外相变。相应地，在 102-107 Hz 的频率范围内观察到罗谢尔簇和纤维素/罗谢尔盐界面的两个弛豫区。