Characterization of Polymeric Chemiresistors for Gas Sensor
Abstract: Polymer is a non
conductive materialthat can be conductive with carbon black filler to form
polymer-carbon composite. polymer-carbon composite’s resistance changes with
gas. The conductivity of polymer-carbon composite is influenced by several
factors,i.e. type of gas, volume of gas, temperature and humidity.. This
research characterizes the polymer-carbon composite sensor from 6 types of
polymers: PEG6000, PEG20M, PEG200, PEG1540, Silicon and Squelene. The sensors
are treated with Aceton, Aceton Nitril, Benzene, Etanol, Methanol, Ethyl
Aceton, Chloroform, n-Hexan and Toluene. This characterization are grouped into
4 cluster according to their selectivity, sensitivity, influence of temperature
and humidity. sensors are put in an isolated chamber which is connected to data
acquisition with the variations of
temperature, humidity, type and volume of gas. Correspondence analysis and
regression are used to process the data. Test results found that each sensor
showed different sensitivity and selectivity towards particular type of gas.
Resistance of sensors increases with rising temperature and humidity
environment with order 2 and order 3
polynomial equation
Author: Budi Gunawan, Muhammad
Rivai, Hendro Juwono
Journal Code: jptkomputergg120049