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/ COLORIMETRIC GAS SENSORS WITH ONE DIMENSIONAL COREPOLYMER-SHELLCOLOR CHANGE DYE/POLYMER NANOFIBER MEMBRANE AND MANUFACTURING METHOD THEREOF
/ COLORIMETRIC GAS SENSORS WITH ONE DIMENSIONAL COREPOLYMER-SHELLCOLOR CHANGE DYE/POLYMER NANOFIBER MEMBRANE AND MANUFACTURING METHOD THEREOF
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机译：/一维高分子-壳色染料/聚合物纳米纤维膜的比色气体传感器及其制造方法
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摘要
The present invention relates to a gas-indicating core (polymer) -shell (color-changing dye material / polymer) nanofiber membrane material in which a color-changing dye material which changes color by reacting with a specific gas molecule is bonded to the shell and the outer surface of the core- A color change sensor and a manufacturing method thereof. Specifically, a polymer electrospinning solution (first polymer) located in the core and a color change dye material / polymer composite electrospinning solution (second polymer) located in the shell are prepared, and a core-shell Characterized in that the color change dye material is selectively bound to the shell and outer surface of the nanofiber. These one-dimensional nanofibers provide more pores to allow specific gas molecules to diffuse into the membrane sensor, and can greatly broaden the area of the color change dye material exposed to air. The present invention can mass-produce nanofiber membrane color change sensors using dual nozzle electrospinning, which is relatively inexpensive to manufacture. In addition, core (polymer) -shell (chromatic dye / polymer) nanofiber membranes provide higher surface area and porosity than conventional gas sensing test papers, so even if exposed to a specific gas concentration below 1 pm, Color change occurs within a predetermined range. These high-performance color-change gas sensors are environmentally harmful gases (H 2 S, SO x , NO x , CO x ) and biological indicator gases (CH 3 COCH 3 , C 2 H 5 OH, and C 6 H 5 CH 3 ) contained in human exhalation can be detected and used as a healthcare product.
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机译：气体指示芯（聚合物）-壳（变色染料材料/聚合物）纳米纤维膜材料技术领域本发明涉及通过与特定的气体分子反应而变色的变色染料材料与壳结合的气体指示芯（聚合物）-壳（纤维）。芯线的外表面是一种变色传感器及其制造方法。具体地，制备位于核中的聚合物电纺丝溶液（第一聚合物）和位于壳中的变色染料材料/聚合物复合电纺丝溶液（第二聚合物），并且核-壳的特征在于，变色染料材料为：选择性地结合到纳米纤维的壳和外表面。这些一维纳米纤维提供了更多的孔，以允许特定的气体分子扩散到膜传感器中，并可以大大加宽暴露于空气中的变色染料材料的面积。本发明可以使用双喷嘴静电纺丝法大量生产纳米纤维膜变色传感器，其制造相对便宜。此外，核（聚合物）-壳（彩色染料/聚合物）纳米纤维膜比常规的气体感应试纸具有更高的表面积和孔隙率，因此，即使暴露于低于1 pm的特定气体浓度下，颜色也会在预定范围内发生变化。这些高性能的变色气体传感器是对环境有害的气体（H 2 S，SO x ，NO x ，CO x ）和生物指示剂气体（CH 3 COCH 3 ，C 2 H 5 OH和人体呼出气中的C 6 H 5 CH 3 ）可以被检测出并用作保健产品。
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