Preparation technology allowing large-scale production of flexible biomass-based pressure sensors

A technology of pressure sensor and preparation process, which is applied in the field of wearable sensing, can solve the problems of incapable of large-scale production and high production cost, and achieve the effects of strong physical and mechanical properties, simplified production process, and reduced production cost

Active Publication Date: 2020-02-28
山东仁康医疗科技有限公司
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Problems solved by technology

[0005] Aiming at the disadvantages of high production cost, incapable of large-scale production, and generation of electronic waste in the existing flexible device production process, the present invention provides an environment-friendly, simple process, low cost, good repeatability, and large-scale production-capable preparation process to prepare flexible pressure sensing materials with high sensitivity and high stability

Method used

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  • Preparation technology allowing large-scale production of flexible biomass-based pressure sensors
  • Preparation technology allowing large-scale production of flexible biomass-based pressure sensors

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Embodiment 1

[0025] Example 1: In this example, the PDMS / n-hexane solution is configured using Dow Corning SYLGUARD184 silicone rubber, model Sylgard 184. Dow Corning SYLGUARD184 silicone rubber is composed of separately packaged main agent SYLGUARD-184A and hardener SYLGUARD-184B.

[0026] The preparation process of the flexible biomass-based pressure sensor that can be mass-produced in this embodiment is carried out according to the following steps:

[0027] Step 1. Put the raw cotton into a corundum crucible after being pressed into pieces, and then place it in a tube furnace, and carbonize it at 900°C for 2 hours in a high-purity argon (mass purity: 99.999%) atmosphere;

[0028] Step 2, then cut into a rectangle with an area of ​​1.9cm×1.2cm and a thickness of 7±0.5mm;

[0029] Step 3, then soak in PDMS / n-hexane solution for 20 minutes, take it out, hang it in an oven at 80°C in a way similar to drying clothes, until it solidifies, and obtain a flexible biomass-based pressure sensor; ...

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Abstract

The invention disclose a preparation technology allowing large-scale production of flexible biomass-based pressure sensors and belongs to the field of wearable sensors. The preparation technology aimsto overcome the defects that in the existing flexible device production process, production cost is high, large-scale production cannot be realized, and electronic waste is generated. The method comprises the steps that firstly, biomass is subjected to high-temperature carbonization in an inert atmosphere after being treated to be in a certain shape; secondly, the biomass is sheared to be in a designed shape; and thirdly, the biomass is placed in a PDMS / n-hexane solution to be soaked and is solidified after being taken out, and the flexible biomass-based pressure sensors are obtained. Throughthe method, cost is low, large-scale production can be realized, generation of the electronic waste and pollution of the environment are avoided, and the obtained products have high sensitivity and stability; and the pressure sensors obtained through the method can monitor human pulse beating, joint movement, throat pronunciation and the like.

Description

technical field [0001] The invention belongs to the field of wearable sensing, and relates to a large-scale and simple preparation method of a biological interface sensing material, in particular to a preparation method of a wearable biocompatible sensing material utilizing the structural characteristics of biomass. The method is simple and easy to realize large-scale production. Background technique [0002] For nearly a century, with the rapid development of the economy, people's living standards have been improving day by day, and the health of human beings has gradually been paid attention to. Bioelectronic medical equipment and wearable electronic devices have gradually received people's favor because of their lightness, dexterity, flexibility, and real-time monitoring. This type of electronic device can not only monitor the basic physiological parameters of the human body, but also monitor the physical state of soldiers in individual combat. Therefore, the preparatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/16G01L9/08A61B5/00
CPCG01L1/16G01L9/08A61B5/6801A61B5/6843
Inventor 刘妍齐殿鹏钟正祥徐洪波
Owner 山东仁康医疗科技有限公司
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