Development of a novel moisture sensor based on superabsorbent poly(acrylamide)-montmorillonite composite hydrogels

被引：80

作者：

Gao, DY

Heimann, RB ^{[1
]}

Lerchner, J

Seidel, J

Wolf, G

机构：

[1] Freiberg Univ Min & Technol, Chair Tech Mineral, Dept Mineral, D-09596 Freiberg, Germany

[2] Freiberg Univ Min & Technol, Dept Phys Chem, D-09596 Freiberg, Germany

来源：

JOURNAL OF MATERIALS SCIENCE | 2001年 / 36卷 / 18期

关键词：

D O I：

10.1023/A:1017971811942

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The time dependence of water vapour absorption by superabsorbent polymer clay composite (SAPC) hydrogels was studied using thermophysical methods. For the purpose of comparison the average value of the specific interaction enthalpy of liquid water with the SAPC structure was calorimetrically determined for a defined interaction time. Dynamic vapour absorption measurements confirmed that the SAPC material has a sufficiently high absorption capacity and good selectivity for water vapour. A prototype moisture sensor with excellent reproducibility of the output voltage signal was constructed by coating a silicon integrated thermotransducer with a thin SAPC membrane. (C) 2001 Kluwer Academic Publishers.

引用

页码：4567 / 4571

页数：5

共 14 条

[1] ADSORPTION AND DESORPTION OF WATER-VAPOR ON A SUPERABSORBENT POLYACRYLIC POLYMER .2. KINETICS OF ADSORPTION AND DESORPTION - INFLUENCE OF CYCLES AND STORAGE TIME [J].