Ph color-response sensing type micro-nanofiber, preparation method and application thereof

A technology of micro-nano fiber and color response, which can be used in fiber processing, spinning solution preparation, textile and paper making, etc. It can solve the problems of low sensitivity and long reaction time, and achieve simple process, short preparation time and pH color response sensitive effect
CN101949072AInactive Publication Date: 2011-01-19HEILONGJIANG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
HEILONGJIANG UNIV
Publication Date
2011-01-19
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a pH color-response sensing type micro-nanofiber, a preparation method and application thereof, which relate to a response sensing type micro-nanofiber, a preparation method and application thereof. The invention solves the problems of low sensitivity and long reaction time of the traditional poly-Schiff base film for acidichromism. The diameter of the micro-nanofiber is between 10 nanometers and 2 micrometers, and the micro-nanofiber is prepared from a spinning solution through an electrostatic spinning technology. The preparation method comprises the following steps of: firstly, dissolving the poly-Schiff base into a polymer solution to prepare the spinning solution, and then, preparing the micro-nanofiber by the electrostatic spinning technology. The micro-nanofiber is applied to a pH color response sensor, is evenly distributed, is in bunched fiber or a felty film and has the advantages of sensitive pH color response and short metachromatism time (0.5s-1s). The pH color-response sensing type micro-nanofiber has obvious color response for 0.1-10000ppm response matters. The preparation method is completed at room temperature, has the advantages of short preparation time, convenient operation and low energy consumption, and is convenient to practice.
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Description

technical field

[0001] The invention relates to a response sensing micro-nano fiber and its preparation method and application. Background technique

[0002] PolySchiff base PolySchiff base (referred to as PSB, also known as polyazomethine, polyazomethine) is a high-performance material with excellent heat resistance and mechanical properties, and is prepared due to its optoelectronic, nonlinear optical and magnetic properties. It has attracted attention and has attractive application prospects in nonlinear optics, secondary batteries, electrochromic displays and solid capacitors. The acid-induced color change of poly-Schiff base can achieve the effect of optical switching, and has potential application prospects in information storage and sensing. However, the use of poly-Schiff base films for acid-induced chromism has disadvantages such as low sensitivity and long reaction time.

[0003] Due to the structural characteristics of extremely small diameter and extremely larg...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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