포스포늄 염을 가진 고분자 습도센서의 감습 특성 및 신뢰성

김오영; 공명선

Journal of the Korean Industrial and Engineering Chemistry, Vol.9, No.4, 554-560, August, 1998

Export Citation

포스포늄 염을 가진 고분자 습도센서의 감습 특성 및 신뢰성

Humidity-Sensitive Characteristics and Reliabilities of Polymeric Humidity Sensor Containing Phosphonium Salts

김오영, 공명선

초록

포스포늄 염을 포함하는 감습성 전해질 고분자 결로센서를 vinylbenzyl triphenyl phosphonium chloride(VTPC)/styrene=3/7의 공중합체로부터 제조하였다. 감습막은 금/알루미나 전극에 침적법에 의하여 도포하였으며 25 ℃의 70%RH, 80%RH, 90%RH, 그리고 95%RH에서 임피던스는 11MΩ, 980kΩ, 50 kΩ, 그리고 11kΩ를 각각 보여 주어 감습 특성은 결로 센서로서의 특성에 매우 적합하였으며 15∼35℃에서 온도 의존성 계수는 -0.25%고/℃이었으며 히스테리시스는 ±2%RH 이내에 존재하였다. 응답 속도는 70%RH에서 98%RH로 변화할 때 45초이었다. 신뢰성 시험으로서 온도 사이클, 습도 사이클, 고온·고습 저항성, 전기 인가, 장기 방치, 그리고 내수성을 측정하여 결로 샌서로서의 적합성을 평가하였다.

Vinylbenzyl triphenyl phosphonium chloride(VTPC)/styrenes=3.7 copolymer was prepared for the moisture-absorptive polyelectrolyte dew sensor containing phosphonium salts. The humid membrane was fabricated on the gold/alumina electrode by dipping. The impedances were 11㏁, 980 ㏀, 50 ㏀, and 11㏀ at 70%RH, 80%RH, 90%RH and 95%RH, respectively, at 25℃ and the humidity-sensitive charactristic was suitable for the dew secsor. The temperature-dependent coefficient between 15℃ and 35℃ was found to be -0.25%RH/℃ and the hysteresis falled in the ±2%RH range. The response time was found to be 45 sec for the relative humidity ranging from 70%RH to 98%RH at 25℃. The reliabilities such as temperature cycle, humidity cycle, high temperatureand humidity resistance, electrical load stability, stability of long -term storage and water durability were measured and evaluated for the application as a dew sensor.

Keywords:Humidity Sensor;Dew Sensor;Vinylbenzyl Triphenyl Phosphonium Chloride;Reliability

[References]

Hijikigawa M, Miyosh S, Sugihara T, Jinda A, Sens. Actuator, 4, 307 (1983)
Otsuki S, Dozen Y, Kobunshi Ronbunshu, 45, 549 (1988)
Sakai Y, Sadaoka Y, Omura H, Watanabe N, Kobunshi Ronbunshu, 41, 205 (1984)
Sakai Y, Sadaoka Y, Okumura S, Ikeuchi K, Kobunshi Ronbunshu, 41, 209 (1984)
Kim JT, Paek JS, Gong MS, Polym.(Korea), 19(5), 561 (1995)
Sakai Y, Sadaoka Y, Ikeuchi K, Sens. Actuator, 9, 125 (1986)
Kim O, Gong MS, Polym.(Korea), submitted
Paek JS, Gong MS, Korean J. Mater. Res., 5, 715 (1995)
Sakai Y, Sadaoka Y, Matsuguchi M, J. Electrochem. Soc., 136, 171 (1989)
Sakai Y, Sadaoka Y, Matsuguchi M, Moriga N, Shimada, Sens. Actuator, 16, 359 (1989)
Sakai Y, Sadaoka Y, Fukumoto H, Sens. Actuator, 13, 243 (1988)
Paek JS, Lee RY, Park JK, Gong MS, Polym.(Korea), 18(5), 842 (1994)
Bae JS, Gong MS, Polym.(Korea), 20(6), 996 (1996)
"Humidity Sensors Manual," Association of Humidity Measuring Sensors, Japan (1990)
"Handbook of Materials and Moisture," Kyoritsu Publish, 151 (1990)

[Referenced By]

[1] Hijikigawa M, Miyosh S, Sugihara T, Jinda A, Sens. Actuator, 4, 307 (1983)

[2] Otsuki S, Dozen Y, Kobunshi Ronbunshu, 45, 549 (1988)

[3] Sakai Y, Sadaoka Y, Omura H, Watanabe N, Kobunshi Ronbunshu, 41, 205 (1984)

[4] Sakai Y, Sadaoka Y, Okumura S, Ikeuchi K, Kobunshi Ronbunshu, 41, 209 (1984)

[5] Kim JT, Paek JS, Gong MS, Polym.(Korea), 19(5), 561 (1995)

[6] Sakai Y, Sadaoka Y, Ikeuchi K, Sens. Actuator, 9, 125 (1986)

[7] Kim O, Gong MS, Polym.(Korea), submitted

[8] Paek JS, Gong MS, Korean J. Mater. Res., 5, 715 (1995)

[9] Sakai Y, Sadaoka Y, Matsuguchi M, J. Electrochem. Soc., 136, 171 (1989)

[10] Sakai Y, Sadaoka Y, Matsuguchi M, Moriga N, Shimada, Sens. Actuator, 16, 359 (1989)

[11] Sakai Y, Sadaoka Y, Fukumoto H, Sens. Actuator, 13, 243 (1988)

[12] Paek JS, Lee RY, Park JK, Gong MS, Polym.(Korea), 18(5), 842 (1994)

[13] Bae JS, Gong MS, Polym.(Korea), 20(6), 996 (1996)

[14] "Humidity Sensors Manual," Association of Humidity Measuring Sensors, Japan (1990)

[15] "Handbook of Materials and Moisture," Kyoritsu Publish, 151 (1990)