基于聚氨酯膜的还原氧化石墨烯/羧甲基纤维素柔性温度传感器的制备及性能研究  

Preparation and Performance Study of Reduced Graphene Oxide/Carboxymethyl Cellulose Flexible Temperature Sensor Based on Polyurethane Membrane

作　　者：孔晨光 史珺[1,2,5] 王杭州 黄有诚 江淑敏 杨立 KONG Chenguang;SHI Jun;WANG Hangzhou;HUANG Youcheng;JIANG Shumin;YANG Li(Guangzhou Institute of Chemistry,Chinese Academy of Sciences,Guangzhou 510650,China;University of Chinese Academy of Sciences,Beijing 100049,China;CAS Engineering Laboratory for Special Fine Chemicals,Guangzhou 510650,China;CASH GCC Shaoguan Research Institute of Advanced Materials,Nanxiong 512440,China;CASH GCC(Nanxiong)Research Institute of Advanced Materials Co.,Ltd.,Nanxiong 512400,China;Nanxiong Science and Technology Development Service Center,Shaoguang 512499,China)

机构地区：[1]中国科学院广州化学研究所,广东广州510650 [2]中国科学院大学,北京100049 [3]中国科学院新型特种精细化学品工程实验室,广东广州510650 [4]国科广化韶关新材料研究院,广东南雄512440 [5]国科广化(南雄)新材料研究院有限公司,广东南雄512440 [6]南雄市科学技术开发服务中心,广东韶关512499

出　　处：《纤维素科学与技术》2024年第3期1-7,F0002,I0001,共9页Journal of Cellulose Science and Technology

基　　金：梅州市科技计划项目-梅州市鸿雁计划(2024HY001TD003);广东省科技专项资金-韶关科技计划项目(210906134536798)。

摘　　要：具有高温度灵敏度和可靠重复性的柔性温度传感器在新兴的电子皮肤领域具有至关重要的作用。将羧甲基纤维素(CMC)溶解在氧化石墨烯溶液(GO)中,在化学还原后使用聚氨酯膜(PU)封装合成了具有机械柔性的温度传感器件。该传感器具有优异的温度灵敏系数(1.54%/K)、快速的响应时间(9.2 s)以及可靠的监测重复性。值得注意的是,CMC的引入增加了还原氧化石墨烯(rGO)片层间的导电势垒,这有效地提高了复合材料的温度灵敏系数。同时,PU膜的封装阻碍了氧气和水分子的干扰,极大增强了传感器的使用寿命和稳定性。此外,该柔性温度传感器在连续温度监测和呼吸频率测量等实际应用中表现出卓越的检测精度和稳定性,展现了其在电子皮肤领域中如医疗监测、智能机器人平台和环境探测等应用场景的广泛适用性。Flexible temperature sensors with high temperature sensitivity and reliable repeatability play a crucial role in the emerging field of electronic skins.A flexible temperature sensor was synthesized by dissolving carboxymethyl cellulose(CMC)in graphene oxide solution(GO)and using polyurethane membrane(PU)encapsulation.The prepared sensor has an excellent temperature sensitivity coefficient(1.54%/K),fast response time(9.2s)and reliable monitoring repeatability.It is worth noting that the introduction of CMC increases the conductive barrier between the reduced graphene oxide(rGO)sheets,which effectively improves the temperature sensitivity coefficient of the rGO@CMC composite.Meanwhile,the packaging of PU film prevents the interference of oxygen and water molecules,which greatly enhances the service life and stability of the sensors.In addition,the flexible temperature sensor shows excellent detection accuracy and detection stability in practical applications such as continuous temperature monitoring and respiratory rate measurement,demonstrating its wide applicability in electronic skin applications such as medical monitoring,intelligent robotic platforms and environmental detection.

关 键 词：羧甲基纤维素 还原氧化石墨烯 柔性温度传感器 电子皮肤 

分 类 号：TQ352.79[化学工程] TP212[自动化与计算机技术—检测技术与自动化装置]