高分子湿敏器件的耐水性  

Study on water resistant polymer humidity sensors

作　　者：陈丽华[1] 全宝富[1] 张彤[1] 孙良彦[1] 

机构地区：[1]吉林大学电子工程系,吉林长春130021

出　　处：《电子元件与材料》2000年第6期3-4,6,共3页Electronic Components And Materials

摘　　要：为了改善湿敏器件的耐水性能 ,在制备高分子湿敏器件过程中 ,以丙烯酰胺为交联剂并加乙基纤维素保护膜。结果使湿敏器件的耐水性增强 ,但同时也使器件阻值增高 ,湿滞增大 ,吸脱附时间增长。器件再经适当浸水老化后 ,湿滞减小 ,耐水性亦得到进一步改善。Water resistant characteristics of polymer humidity sensors are improved by using acrylamide as cross linking agent and ethyl cellulose coating as protect film. While water resistant characteristics are improved, resistance, humidity hysteresis and absorption/desorption time increase at the same time. When the sensors being soaked in water properly, humidity hysteresis decreases without changing the improved water resistant characteristics. (4 refs.)

关 键 词：高分子湿敏器件 丙烯酰胺 乙基纤维素 耐水性 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]