1 TEXTILE COLORIMETRIC SENSORS AND MEMBER WITH DYE ANCHORED ONE DIMENSIONAL POLYMER NANOFIBERS FOR DECTING HYDROGEN SULFIDE GAS AND MANUFACTURING METHOD THEREOF

摘要

The present invention relates to a method for producing lead (II) acetate (Pb (CH₃COO)₂The present invention relates to a lead (II) acetate / polymer composite color change nanofiber sensor in which powder is uniformly bound to the inside and the outside of a one-dimensional polymer nanofiber and a manufacturing method thereof. Specifically, the dye powder is pulverized to a nanometer or submicron size through a high energy ball milling process, and an electric discharge solution in which dye powders are uniformly dispersed is prepared by mixing fine dye powders with a polymer and a solvent. And the polymer nanofibers obtained by spinning are bound to a dye powder. This one-dimensional nanostructure provides more pores so that the sensing gas can diffuse into the structure containing the dye powder, so that the reaction site limited to the surface can also be expressed in the inside of the membrane, Can be significantly increased. The present invention can produce a color change nanofiber sensor in a large quantity using electrospinning which can be manufactured at a relatively low cost and provides a surface area and porosity higher than that of a lead (II) acetate material of a conventional test paper for the detection of hydrogen sulfide, Even if exposed to hydrogen sulfide at a concentration lower than 1 ppm, which could not be detected by the color change sensor, the embolization can occur within tens of seconds, and thus it can be used as a gas sensor for diagnosing bad breath through breath gas.;