Research Institute of Cell Culture, School of Chemical Engineering, Yeung-Nam University, 280 Daehak-ro, Gyeongsan 38541, Korea.
Department of Organic Materials and Polymer Engineering, Dong-A University, 37 Nakdong-daero 550beon-gil, Saha-gu, Busan 49315, Korea.
Int J Mol Sci. 2022 Feb 9;23(4):1938. doi: 10.3390/ijms23041938.
The purpose of this review article is to outline the extended applications of polyurethane (PU)-based nanocomposites incorporated with conductive polymeric particles as well as to condense an outline on the chemistry and fabrication of polyurethanes (PUs). Additionally, we discuss related research trends of PU-based conducting materials for EMI shielding, sensors, coating, films, and foams, in particular those from the past 10 years. PU is generally an electrical insulator and behaves as a dielectric material. The electrical conductivity of PU is imparted by the addition of metal nanoparticles, and increases with the enhancing aspect ratio and ordering in structure, as happens in the case of conducting polymer fibrils or reduced graphene oxide (rGO). Nanocomposites with good electrical conductivity exhibit noticeable changes based on the remarkable electric properties of nanomaterials such as graphene, RGO, and multi-walled carbon nanotubes (MWCNTs). Recently, conducting polymers, including PANI, PPY, PTh, and their derivatives, have been popularly engaged as incorporated fillers into PU substrates. This review also discusses additional challenges and future-oriented perspectives combined with here-and-now practicableness.
本文的目的是概述基于聚氨酯 (PU) 的纳米复合材料的扩展应用,其中包含导电聚合物颗粒,并概述聚氨酯 (PU) 的化学和制造。此外,我们还讨论了用于 EMI 屏蔽、传感器、涂层、薄膜和泡沫的基于 PU 的导电材料的相关研究趋势,特别是过去 10 年的研究趋势。PU 通常是一种电绝缘体,表现为介电材料。通过添加金属纳米粒子来赋予 PU 的导电性,并随着结构中增强的纵横比和有序性而增加,就像在导电聚合物原纤维或还原氧化石墨烯 (rGO) 的情况下一样。具有良好导电性的纳米复合材料表现出明显的变化,这是基于纳米材料如石墨烯、rGO 和多壁碳纳米管 (MWCNT) 的显著电性能。最近,包括 PANI、PPY、PTh 及其衍生物在内的导电聚合物已被广泛用作嵌入到 PU 基体中的填充剂。本文还讨论了结合当前实用性的额外挑战和面向未来的观点。