基于天然高分子的导电材料制备及其在柔性传感器件中的应用

Natural polymers are environmentally friendly and sustainable renewable raw materials with many advantages, such as variety of sources, different chemical components, excellent biocompatibility and biodegradability. The controllable production of conductive materials derived from natural polymers with excellent properties is critical for the design and manufacture of new conductive materials, and the assembly of unique functional flexible sensors. Recently, the research of green flexible sensors based on natural polymers has been widely concerned by scientists at home and abroad, and great progress has been made. The review summarizes the preparation approaches of conductive materials based on natural polymers, which can be divided into template method and doping method. The template method takes the micro-nano skeleton structures of the natural polymers as matrix, while the doping method takes the products or derivatives of the natural polymers as matrix. The research progresses of flexible sensors based on natural polymers are summarized, including the flexible sensors of humidity, temperature, strain, airflow, gas, light and biomedicine. Finally, the prospects of flexible conductive materials based on natural polymers in the design and assembly of flexible sensors are prospected, and novel ideas to efficient utilization of natural polymer materials for developing green flexible electronics have been proposed.