A kind of temperature sensing rubber material and preparation method thereof

A rubber material and sensing technology, applied in thermometers, thermometers with physical/chemical changes, instruments, etc., can solve the problems of narrow sensing temperature range, low discernible resolution, complicated preparation process, etc., and achieve the sensing temperature The effect of wide range, high resolution and high thermal sensitivity

Active Publication Date: 2022-05-17
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0017] In order to overcome the problems of poor thermal sensitivity, narrow sensing temperature range, low distinguishable resolution, and complicated preparation process of traditional brittle semiconductor materials used as temperature sensors, the present invention proposes a sensor with high thermal sensitivity, large resolution, and temperature sensing Sensing rubber material capable of monitoring human skin temperature with wide range, excellent stability and repeatability and its preparation method, solving the problems existing in the prior art

Method used

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  • A kind of temperature sensing rubber material and preparation method thereof
  • A kind of temperature sensing rubber material and preparation method thereof
  • A kind of temperature sensing rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Mix 1.0 g of sericin powder with 50 mL of deionized water at room temperature, and then magnetically stir until the sericin is completely dissolved to obtain a sericin aqueous solution;

[0047] Grind 0.1 g of multi-walled carbon nanotubes in an agate mortar for 30 min, then slowly pour the ground carbon nanotubes into the above-mentioned completely dissolved sericin solution under magnetic stirring, stir for about 30 min, and then use a probe to sonicate The mixed solution of sericin and carbon nanotubes was ultrasonically treated by the instrument at 800W power for 10 min; Slowly add sericin and carbon nanotubes into the mixed solution of sericin and carbon nanotubes under mechanical stirring for 30 min; after mechanical stirring for 30 min, degassing for 5 min, followed by ultrasonic treatment, ultrasonic power is 600 W, ultrasonic The time is 30 minutes. After sonication for 30 min, the resulting mixture was poured into a polytetrafluoroethylene mold, dried at 40 °...

Embodiment 2

[0049] Mix 1.0 g of sericin powder with 50 mL of deionized water at room temperature, and then magnetically stir until the sericin is completely dissolved to obtain a sericin aqueous solution;

[0050] Grind 0.3 g of multi-walled carbon nanotubes in an agate mortar for 30 min, then slowly pour the ground carbon nanotubes into the above-mentioned completely dissolved sericin solution under magnetic stirring for about 30 min, and then use a probe to sonicate The mixed solution of sericin and carbon nanotubes was sonicated for 10 min under the power of 800 W. After ultrasonication for 10 min, 20.0 g of carboxylated styrene-butadiene rubber and 0.2 g of dicumyl peroxide were slowly added to the mixed solution of sericin and carbon nanotubes under mechanical stirring at a speed of 650 r / min, and the stirring time was 30 min. After mechanical stirring for 30 min, defoaming was carried out for 5 min, followed by ultrasonic treatment, the ultrasonic power was 600 W, and the ultrasoni...

Embodiment 3

[0052] At room temperature, 1.0 g of sericin powder was mixed with 50 mL of deionized water, and then magnetically stirred until the sericin was completely dissolved to obtain an aqueous solution of sericin.

[0053] Grind 0.5 g of multi-walled carbon nanotubes in an agate mortar for 30 min, then slowly pour the ground carbon nanotubes into the above-mentioned completely dissolved sericin solution under magnetic stirring for about 30 min, and then use a probe to sonicate The mixed solution of sericin and carbon nanotubes was sonicated for 10 min under the power of 800 W. After ultrasonication for 10 min, 20.0 g of carboxylated styrene-butadiene rubber and 0.2 g of dicumyl peroxide were slowly added to the mixed solution of sericin and carbon nanotubes under mechanical stirring at a speed of 650 r / min, and the stirring time was 30 min. After mechanical stirring for 30 min, defoaming was carried out for 5 min, followed by ultrasonic treatment, the ultrasonic power was 600 W, an...

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Abstract

The invention discloses a temperature sensing rubber material and a preparation method thereof. The raw materials include: 80-100 parts of carboxylated styrene-butadiene rubber, 5-30 parts of sericin, 1-5 parts of dicumyl peroxide, and 1 part of conductive filler. ~15 parts and 50~100 parts of solvent deionized water. The present invention uses carboxylated styrene-butadiene rubber as the main rubber component, and by changing the amount of conductive filler added and improving the basic formula, as well as optimizing the process conditions of conductive filler dispersion, rubber latex blending, and latex film formation, a compound with high thermal sensitivity and large High-resolution rubber temperature sensing material with a thermal conductivity of 0.156 to 0.268 Wm ‑1 K ‑1 , the sensing temperature range is 30-100°C, and the repeatability is good. It can have good performance in human skin temperature monitoring and meet the requirements of real-time continuous skin temperature monitoring. Therefore, it is widely used in electronic skin, disease diagnosis, medical care and other fields. huge potential.

Description

technical field [0001] The invention belongs to the technical field of rubber materials, specifically a temperature-sensing rubber material and a preparation method thereof. Background technique [0002] In recent years, flexible and wearable sensing materials composed of various sensors are able to detect and quantify various stimuli in the environment, such as strain, pressure, and temperature, etc., and due to their applications in personal health monitoring, human motion detection, and electronic skin It has a wide range of potential application prospects and has attracted great attention. Among various wearable applications, temperature sensing in wearable sensors is an important research area. Skin-attachable flexible temperature sensors are used to monitor the health status of individuals, and real-time, continuous skin temperature monitoring is crucial for predicting the cognitive status of the human body and thermal environment, as well as early diagnosis of diseas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L13/00C08L89/00C08K3/04C08K5/14C08J5/18G01K11/00
CPCC08L13/00C08J5/18G01K11/00C08J2313/00C08J2489/00C08K2201/001C08L89/00C08K3/041C08K5/14
Inventor 徐传辉林梦转林宝凤付丽华
Owner GUANGXI UNIV
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