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Frictional nanoelectric power generation sensor filling with flexible fractal structure and its application

A fractal structure, nano-power generation technology, applied in the field of sensors, can solve the problems of unable to reflect the sleep situation of the monitored person, affecting sleep quality, anxiety, etc., to achieve the effect of improving flexibility, comfortable experience, and accurate monitoring data

Active Publication Date: 2022-05-13
CHONGQING UNIV IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, standard sleep monitoring is carried out in professional sleep centers. Professional sleep monitoring instruments, such as polysomnography (PSG) at night, have as many as 72 lines connected to the human body, which can easily cause anxiety in the monitored person. Anxiety, which seriously affects the quality of sleep, resulting in the inability to reflect the real sleep situation of the monitored person

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1—Preparation of fillers for triboelectric nanopower generation sensors with flexible fractal structures

[0026] Preparation of Micro-nano Composite Electrode with Low Electrophilicity

[0027] A flexible conductive polymer ITO film with a thickness of 200 μm is used to prepare a substrate with a fractal structure, and the fractal dimension is 0.1-2. Rinse well and let dry naturally. Disperse the ethyl cellulose concentrate in ethanol and shake well to obtain a uniformly dispersed suspension. The obtained suspension was spray-coated on a flexible conductive polymer ITO film with a fractal structure to obtain a conductive substrate with ethyl cellulose wrapping (wrapping thickness: 2 μm) on the surface. The obtained conductive substrate is placed in an oven and heated for 50 minutes, and then taken out to obtain a low-electrophilic micro-nano composite electrode coated with a nano-ethyl cellulose film.

[0028] Preparation of highly electrophilic micro-nano c...

Embodiment 2

[0032] Example 2—Preparation of triboelectric nanoelectricity sensor filling with flexible fractal structure

[0033] Preparation of Micro-nano Composite Electrode with Low Electrophilicity

[0034] The flexible conductive polymer FTO film with a thickness of 150 μm is prepared into a substrate with a fractal structure by using a laser cutter, and the fractal dimension is 0.1-2. Rinse well and let dry naturally. Disperse the polyamide concentrate in ethanol and shake well to obtain a uniformly dispersed suspension. The obtained suspension was spray-coated on a flexible conductive polymer FTO film with a fractal structure to obtain a conductive substrate with a polyamide wrapping (wrapping thickness of 3 μm) on the surface. The obtained conductive substrate is placed in an oven and heated for 50 minutes, and then taken out to obtain a low-electrophilic micro-nano composite electrode coated with a nano-polyamide film on the surface.

[0035] Preparation of highly electrophili...

Embodiment 3

[0039] Example 3—Preparation of fillers for triboelectric nanopower generation sensors with flexible fractal structures

[0040] Preparation of Micro-nano Composite Electrode with Low Electrophilicity

[0041] A flexible conductive polymer ITO film with a thickness of 250 μm is used to prepare a substrate with a fractal structure, and the fractal dimension is 0.1-2. Rinse well and let dry naturally. Disperse the polyvinyl alcohol concentrate in ethanol and shake well to obtain a uniformly dispersed suspension. The obtained suspension was spray-coated on a flexible conductive polymer ITO film with a fractal structure to obtain a conductive substrate with polyvinyl alcohol wrapped on the surface (wrapped with a thickness of 4 μm). The obtained conductive substrate is placed in an oven and heated for 50 minutes, and then taken out to obtain a low-electrophilic micro-nano composite electrode coated with a nano-polyvinyl alcohol film on the surface.

[0042] Preparation of highl...

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PUM

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Abstract

The invention discloses a frictional nano power generation sensor filler with a flexible fractal structure and its application, including a fractal structure low electrophilic micro-nano composite electrode and a fractal structure high electrophilic micro-nano composite electrode. An electrode pair is composed of a micro-nano composite electrode with a fractal structure and a highly electrophilic micro-nano composite electrode, and a plurality of electrode pairs are randomly stacked to form a flexible filler. There is a fractal structure between the fillers of the invention, and has excellent properties such as flexibility, air permeability, and high sensitivity. The filler of the triboelectric nano power generation sensor prepared by the invention is a self-powered device, and can work normally without external power supply, which improves the flexibility of the monitoring device. The triboelectric nano power generation sensor prepared as a filler in the present invention can monitor physiological signals without contact with the body, so that the monitoring data is more accurate and the experience is more comfortable.

Description

technical field [0001] The invention relates to a frictional nano power generation sensor filler with a flexible fractal structure and an application thereof, belonging to the technical field of sensors. Background technique [0002] Good sleep is an important basis for healthy recuperation. Poor sleep quality will not only bring many harms to cardiovascular and cerebrovascular, psychological, nervous system, growth and development, but also be related to other systemic diseases in the whole body. Although there are more than 90 sleep diseases that have been defined in medicine, according to sleep science research, half of the world's population suffers from sleep diseases. More than 80% of people with sleep disorders are unable to perceive that they suffer from sleep disorders. How to effectively monitor the sleep process, and carry out effective preliminary screening and preventive intervention for sleep diseases is of great significance to smart medical care in the era ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/00B82Y30/00H02N1/04
CPCA61B5/4806H02N1/04B82Y30/00
Inventor 范兴张楠楠陶长元郭弯弯项思维杜军刘仁龙孔令峰骆新鑫
Owner CHONGQING UNIV IND TECH RES INST