TITLE:
Enhancement of Toxic Gas Detecting Ability of Film Type Colorimetric Sensor
AUTHORS:
Sung Yeol Kim, Seung Kyun Yoon, Jungho Ahn, Dong June Chung
KEYWORDS:
Toxic Gas Detection, Colorimetric Sensor, pH Indicating Dyes, Polymer Binder, Electron Transfer Reagent
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.4 No.1,
January
11,
2016
ABSTRACT:
In this study, we tried to develop the in
situ coating methods of hydrophilic polymer solution containing water soluble
dye on nonwoven sheet for the colorimetric film sensor. And color change of coated
dye according to contact various gas samples (as strong acid and base,
chloroform, ammonia and HF) of this dye-coated nonwoven film was examined for
the application of chemically toxic materials detecting tools in the actual
site of working place without aid of any kinds of detecting devices. By the
addition of electron transfer agent (quinone derivatives), quick color change
behaviors were observed within 10 seconds under the contact of various toxic
gases in general condition(room temperature, 50% humidity).