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A kind of preparation method of temperature sensor, temperature sensor and application thereof

A technology of temperature sensor and concentration, which is applied in thermometers, thermometers with directly heat-sensitive electric/magnetic elements, instruments, etc., can solve the problems of narrow temperature range, inconvenient use, low sensitivity, etc., and achieve good electrical conductivity and technical Stable, highly sensitive results

Active Publication Date: 2020-06-09
放生(重庆)科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current temperature sensors have disadvantages such as narrow temperature range, low accuracy, low sensitivity, high power consumption, complicated installation and inconvenient use.

Method used

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  • A kind of preparation method of temperature sensor, temperature sensor and application thereof

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Experimental program
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Effect test

Embodiment 1

[0030] A preparation technique for high-sensitivity graphene oxide composite polymer temperature sensor, such as figure 1 shown, including the following steps:

[0031] (1) Use 20ug of graphene oxide and 100ml of water to prepare a graphene oxide prefabricated solution, synthesize a polypyrrole polymer film with 30g of pyrrole monomer by electrochemical method, cut it into squares of 0.5cm*0.5cm evenly, and then The alkene prefabricated solution was evenly sprayed on the polypyrrole polymer film by electrospray method to obtain the biological core chip.

[0032] (2) Add 5 g of polydimethylsiloxane into 100 ml of hexane at 65° C. and stir at 60 rap / min for 3 hours until completely dissolved. 3 g of methylene acrylamide was prepared as an aqueous solution, and the aqueous solution of methylene acrylamide was added at a rate of 0.2 ml / min under stirring conditions, and left to stand at room temperature for 2 hours. The formed membrane material was placed in a dialysis bag of 12...

Embodiment 2

[0035] A preparation technique for high-sensitivity graphene oxide composite polymer temperature sensor, such as figure 1 shown, including the following steps:

[0036] (1) Use 10ug of graphene oxide and 100ml of water to prepare a prefabricated solution of graphene oxide, synthesize a polypyrrole polymer film with 5g of pyrrole monomer by electrochemical method, cut it into squares of 0.5cm*0.5cm evenly, and then The alkene prefabricated solution was evenly sprayed on the polypyrrole polymer film by electrospray method to obtain the biological core chip.

[0037] (2) Add 3 g of polydimethylsiloxane into 100 ml of hexane at 50° C. and stir at 40 rap / min for 3 hours until completely dissolved. Prepare 1 g of methylene acrylamide into an aqueous solution, add the methylene acrylamide aqueous solution at a rate of 0.2 ml / min under agitation, and let it stand at room temperature for 2 hours. The formed membrane material was placed in a dialysis bag of 12-14KDa and dialyzed at ro...

Embodiment 3

[0040] A preparation technique for high-sensitivity graphene oxide composite polymer temperature sensor, such as figure 1 shown, including the following steps:

[0041] (1) Use 35ug of graphene oxide and 100ml of water to prepare a graphene oxide prefabricated solution, synthesize a polypyrrole polymer film by electrochemical method with 25g of pyrrole monomer, cut it into squares of 0.5cm*0.5cm evenly, and then The alkene prefabricated solution was evenly sprayed on the polypyrrole polymer film by electrospray method to obtain the biological core chip.

[0042] (2) Add 4 g of polydimethylsiloxane into 100 ml of hexane at 60° C. and stir at 50 rap / min for 3 hours until completely dissolved. 4 g of methylene acrylamide was prepared as an aqueous solution, and the methylene acrylamide aqueous solution was added at a rate of 0.3 ml / min under stirring conditions, and the solution was allowed to stand at room temperature for 2 hours. The formed membrane material was placed in a d...

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Abstract

The invention relates to a manufacturing method of a temperature sensor. The manufacturing method comprises the following steps of using graphene oxide and polypyrrole to synthesize composite grapheneoxide, wherein the composite graphene oxide serves as a core chip part of the sensor; then synthesizing polydimethylsiloxane and methylene acrylamide into a high-molecular polymer through a physicaland chemical crosslinking method, wherein the high-molecular polymer serves as an outer-layer insulation part of the sensor; and finally manufacturing the graphene oxide composite polymer temperaturesensor by embedding a copper wire. The temperature sensor provided by the invention has the advantages of simple and convenient manufacturing, simple structure, high sensitivity, light weight, good biocompatibility and the like; and the most important advantage is that the temperature can be measured in a suspension mode, so that direct contact with a measured object is not needed. The temperaturesensor has a very good application prospect in the fields of animal temperature measurement, human body temperature measurement, environment temperature measurement and the like.

Description

technical field [0001] The invention relates to the field of biological electrical products, in particular to the preparation of a temperature sensor. Background technique [0002] Graphene is a new carbonaceous material with a two-dimensional structure. Graphene has excellent electrical, thermal and mechanical properties. Therefore, various signals can be sensed through the change of the conductivity of graphene, which makes the device highly sensitive due to the high charge mobility of graphene. The surface of graphene oxide has a large number of oxygen-containing groups, which has good solvent solubility and polymer affinity. At the same time, it also has superior electrical, thermal and mechanical properties. Therefore, graphene oxide is a kind of sensor in the field of sensor preparation. Very promising material. [0003] Body temperature detection is the simplest and most common thing in daily life. Whether it is the temperature detection of the human body or the tem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K7/00
CPCG01K7/00
Inventor 杨陈
Owner 放生(重庆)科技有限公司