Interdigital large-area flexible array sensor and preparation method thereof

A flexible array, large-area technology, applied in the field of sensors, can solve the problems of reducing sensor packaging efficiency, large pressure sensing range, affecting sensor performance, etc. Effect

Active Publication Date: 2019-10-15
SHAOXING UNIV YUANPEI COLLEGE
View PDF6 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The first purpose of the present invention is to overcome the low material utilization rate and high production cost in the prior art when the traditional photolithography process is used to prepare large-area flexible array sensors. When large-area integration, if the array density is high, the It will lead to the problems that the efficiency is too low and the preparation is too difficult. An interdigitated large-area flexible array sensor and its preparation method are provided, which are prepared by a full screen printing process. The process is simple, the efficiency is high, and the cost is low. And the prepared The large-area flexible array sensor has high sensitivity, good stability and large pressure sensing

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Interdigital large-area flexible array sensor and preparation method thereof
  • Interdigital large-area flexible array sensor and preparation method thereof
  • Interdigital large-area flexible array sensor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Preparation of pole plate: Use 420-mesh steel screen to print Youtexin ID01 type conductive silver paste on PET substrate by screen printing process, form array electrodes and wires containing 25 array units on PET substrate, print Afterwards, place in a blast oven and dry at 120°C for 40 minutes to obtain an electrode plate;

[0051] Preparation of pressure-sensitive composite materials: 20g Ketjen black ECP600JD, 5g carbon nanotubes, 5g nano-SiO 2 And 10g 2% silane coupling agent Si-69, add in 85g naphtha, after stirring, ultrasonically disperse for 30min to form a dispersion liquid, add 350g room temperature vulcanized silicone rubber Dow Corning 184 to the dispersion liquid, and magnetically stir at room temperature for 3h to form a viscous Thick mixed solution, place the mixed solution in a vacuum drying oven at 40°C to dry for 20 minutes, remove air bubbles and incompletely volatilized naphtha, and obtain an uncured pressure-sensitive composite material;

[0052]...

Embodiment 2

[0055] Prepare the pole plate: use a 300-mesh polyester screen to print the Youtexin ID01 type conductive silver paste on the PET substrate through the screen printing process, and form an array electrode and wires containing 25 array units on the PET substrate. After printing, put it in a blast oven and dry it at 140°C for 60 minutes to make an electrode plate;

[0056] Preparation of pressure-sensitive composite materials: 75g Ketjen carbon black ECP600JD, 25g carbon nanotubes, 20g nano-SiO 2 And 40g 2% silane coupling agent Si-69, add 25g n-hexane, 65g naphtha and 25g absolute ethanol mixed solution, after stirring, ultrasonically disperse for 60min to form a dispersion liquid, add 450g room temperature vulcanization type to the dispersion liquid Silicone rubber Dow Corning 184, stir magnetically at room temperature for 8 hours to form a viscous mixture, place the mixture in a vacuum drying oven at 100°C and dry for 30 minutes to remove air bubbles and incompletely volatili...

Embodiment 3

[0060] Prepare the pole plate: use a 400-mesh polyester screen to print Youtexin ID01 type conductive silver paste on the PET substrate through a screen printing process, and form an array electrode and wires containing 25 array units on the PET substrate. After printing, put it in a blast oven and dry it at 130°C for 50 minutes to make an electrode plate;

[0061] Preparation of pressure-sensitive composite materials: 50g Ketjen carbon black ECP600JD, 10g carbon nanotubes, 15g nano-SiO 2 And 30g 2% silane coupling agent Si-69, add 70g naphtha and 30g absolute ethanol mixed solution, after stirring, ultrasonically disperse for 40min to form a dispersion liquid, add 400g room temperature vulcanized silicone rubber Dow Corning 184 to the dispersion liquid , stirred magnetically at room temperature for 6 hours to form a viscous mixed solution, and placed the mixed solution in a vacuum drying oven at 70°C to dry for 25 minutes to remove air bubbles and incompletely volatilized nap...

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
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the field of sensors, and discloses an interdigital large-area flexible array sensor and a preparation method thereof. The sensor comprises an electrode plate provided with aninterdigital array electrode and leads, a flexible substrate, and an array pressure-sensitive layer and an insulating glue layer which are arranged between the electrode plate and the flexible substrate, wherein the interdigital array electrode comprises a plurality of array units containing the same interdigital electrodes; the leads comprise row leads and column leads; and the two ends of eachinterdigital electrode are respectively connected to the corresponding row lead and the corresponding column lead. The preparation method comprises the following steps of preparing the electrode plateby adopting a silk-screen printing process; preparing a pressure-sensitive composite material; printing the uncured pressure-sensitive composite material on the array units on the electrode plate byadopting the silk-screen printing process in order to form the array pressure-sensitive layer; and laminating the electrode plate and the flexible substrate through an insulating glue. The method is simple in process, higher in efficiency and low in cost, and the prepared large-area high-density flexible array sensor is high in sensitivity, good in stability and wide in pressure sensing range.

Description

technical field [0001] The invention relates to the field of sensors, in particular to an interdigitated large-area flexible array sensor and a preparation method thereof. Background technique [0002] With the improvement of science and technology and modernization level, people have higher and higher requirements for pressure monitoring. It is no longer limited to pressure monitoring on regular rigid surfaces, and there are various forms. Ordinary rigid sensors can no longer meet people's actual needs. . Flexible pressure sensors can be bent or even folded at will, small in size, thin in thickness, flexible materials are basically non-toxic and harmless, and have good compatibility with the human body. A lot of research and application have been done. [0003] In recent years, with the rapid development of robotic bionic skin, flexible wearable devices and other fields, people's demand for large-area and high-density flexible sensor arrays has continued to increase. Sen...

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01L1/18G01L9/06B82Y15/00C09D183/04C09D5/24C09D7/61
CPCB82Y15/00C08K2201/001C09D5/24C09D183/04C09D7/61G01L1/18G01L9/06C08K5/54C08K3/36C08K3/04C08K3/041C08K13/02
Inventor 徐志望
Owner SHAOXING UNIV YUANPEI COLLEGE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap