【摘要】 随着可穿戴智能设备的快速发展，传统刚性应变传感器已无法满足可穿戴技术对高应变的检测要求，迫切需要发展新型的柔性应变传感器。基于聚合物和纳米导电材料组成的海绵基压阻式应变传感器，具有质轻、柔韧性好、可拉伸、制作简单、成本较低等显著特点，文中从基底材料的角度综述了近年来以聚氨酯海绵、石墨烯海绵、聚二甲基硅氧烷海绵等为基底的柔性应变传感器的研究进展，指出制备同时具有灵敏度高、检测范围宽、响应速度快、循环稳定性好且器件性能鲁棒的柔性应变传感器仍然充满挑战。更多还原

【Abstract】 With the rapid development of wearable intelligent devices, traditional rigid strain sensors can no longer meet the requirements of wearable technology for high strain detection, and it is urgent to develop new flexible strain sensors. The sponge-based piezoresistive strain sensors based on polymer and nano-conductive materials have the remarkable characteristics of light weight, good flexibility and stretchability, simple fabrication and low cost. The research progress of flexible strain sensors based on polyurethane sponge, graphene sponge, PDMS sponge and so on in recent years was reviewed from the perspective of substrate materials. It was pointed out that the preparation of flexible strain sensors with high sensitivity, wide detection range, fast response, good cycle stability and robust device performance is still a challenge.更多还原