Preparation method of low-refractive index nanofiber membrane for alcohol detection

Abstract

The invention relates to the technical field of electrostatic spinning, and provides a preparation method of a low refractive index nanofiber membrane for alcohol detection, the preparation method comprises the following steps: 1, dissolving a polymer matrix material in a solvent, and introducing a fluorine-containing polymer which cannot be electrostatically spun into the solution to obtain a spinning precursor solution; 2, dissolving a fluorine-containing polymer capable of being subjected to electrostatic spinning to obtain another spinning precursor solution; 3, the two precursor solutions are sequentially subjected to electrospinning on electrostatic spinning equipment, and a double-layer composite film is obtained; and 4, treating the double-layer composite membrane with ethanol, and eluting the dissoluble polymer matrix material to obtain the low-refractive index nanofiber membrane. The invention provides a preparation method for introducing a fluorine-containing polymer material into electrostatic spinning for the first time, the refractive index of a polymer matrix is remarkably reduced, and the alcohol test paper based on the double-layer structure composite film of the superfine electrospinning polymer is constructed, so that a new possibility is expected to be created for a next-generation alcohol detection material.

Description

technical field [0001] The invention belongs to the technical field of electrospinning, and in particular relates to a method for preparing a low-refractive-index nanofiber film used for alcohol detection. Background technique [0002] In recent years, with the improvement of people's living standards, alcohol is widely used in various industrial sectors and daily life, such as chemical industry and cosmetics. More broadly, as alcohol consumption grows, there is a wide range of alcohol-induced personal health and life safety concerns, as unsafe levels of alcohol consumption contribute to motor vehicle crashes, violence, and adverse health effects. In this environment, in order to meet people's requirements for quality of life, physical health and life safety, alcohol detection technology is very important. Therefore, there are various sophisticated instrument-based detection methods, such as gas chromatography, which are widely praised for their high sensitivity and accurat...

AI Technical Summary

Problems solved by technology

Therefore, there are various sophisticated instrument-based detection methods, such as gas chromatography, which are widely praised for their high sensitivity and accurate results, however, these methods are time-consuming, complex, expensive, and still have limitations in on-site analysis. Unsatisfactory universality; and Analytical methods including chemical sensors, such as colorimetric-based sensors, are precise and reliable, but the utility of such chemical sensors is limited by anticipated shortcomings, such as previous separation procedures and professionally trained operators

In addition, the use of enzymes with high selectivity has attracted widespread attention, however, the long-term stability of enzymes is not reliable because enzyme functions are often compromised by the surrounding environment.

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