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Polypyrrole modified aerogel self-powered humidity sensor and preparation method thereof

A humidity sensor, self-powered technology, applied in instruments, scientific instruments, material analysis through electromagnetic means, etc., can solve problems such as limiting the application range, and achieve fast response, low cost, and simple methods

Pending Publication Date: 2022-05-06
BOSIDENG DOWN WEAR +1
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Problems solved by technology

But these humidity sensors usually require an external power source, thus limiting their application range

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  • Polypyrrole modified aerogel self-powered humidity sensor and preparation method thereof

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Embodiment Construction

[0023] In order to make the technical scheme of the present invention more clear, the present invention will be further explained below with reference to the specific embodiments of the drawings.

[0024] such as Figure 1 There is shown a polypyrrole modified aerogel self-powered humidity sensor and its preparation method according to the embodiment of the invention, which is characterized in that melamine sponge (MS) is used as a matrix, deionized water is used as a solvent, pyrrole is used as a solute, sodium p-toluenesulfonate is used as a solubilizer to obtain a modified solution, and ammonium persulfate is used as an oxidant to modify the melamine sponge at the same time. The modified polypyrrole modified melamine sponge composite aerogel (PPy@MS) was washed, dried, cut into a certain size, and attached to both sides with conductive tapes as electrodes, so that the polypyrrole modified aerogel self-powered humidity sensor was obtained.

[0025] Furthermore, the density of the...

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Abstract

According to the polypyrrole modified aerogel self-powered humidity sensor and the preparation method thereof, melamine sponge (MS) is taken as a matrix, deionized water is taken as a solvent, pyrrole is taken as a solute, sodium p-toluenesulfonate is taken as a solubilizer, a modified solution is obtained, ammonium persulfate is taken as an oxidizing agent, the melamine sponge is modified by the modified solution and the ammonium persulfate at the same time, and the polypyrrole modified aerogel self-powered humidity sensor is obtained. Washing and drying the modified polypyrrole modified melamine sponge composite aerogel (PPy-MS), cutting the modified polypyrrole modified melamine sponge composite aerogel into a certain size, and pasting conductive adhesive tapes on two sides to serve as electrodes to obtain the polypyrrole modified aerogel self-powered humidity sensor. The polypyrrole modified aerogel self-powered humidity sensor disclosed by the invention has the characteristics of ultralight weight, super-pore structure, self-power supply and the like, and is low in cost and high in response speed.

Description

Technical field [0001] The invention relates to the field of humidity sensors, in particular to a self-powered humidity sensor. technical background [0002] At present, the most widely used humidity sensors are mainly made of conductive polymers, carbon-based nanocomposites, metal oxides and porous ceramics, which can convert humidity into electrical signals. However, these humidity sensors usually need external power supply, which limits their application range. Inventive content [0003] In order to solve the above problems, the present invention provides a preparation method of modified aerogel humidity sensor with self-energy, which uses melamine sponge (MS) as matrix, deionized water as solvent, pyrrole as solute, sodium p-toluenesulfonate as solubilizer to obtain modified solution, and ammonium persulfate as oxidant to modify melamine sponge at the same time. The modified polypyrrole modified melamine sponge composite aerogel (PPy@MS) was washed, dried, cut into a certain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/12C08J9/40C08L61/28
CPCG01N27/126G01N27/121C08J9/405C08J2361/28
Inventor 李晓强高德康孙倩
Owner BOSIDENG DOWN WEAR
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