Conductive rubber for flexible sensor and preparation method thereof

A flexible sensor and conductive rubber technology, which is applied in the field of conductive rubber and its preparation, conductive rubber for flexible sensors and its preparation, can solve the problems of performance degradation and high resistance of conductive agent, and achieve the effect of improving conductive performance and perfecting conductive network

Pending Publication Date: 2022-02-22
苏州怒鲨智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the performance degradation of the rubber matrix due to long-term high-temperature and high-speed shearing, and the high resistance of the conductive agent in the rubber matrix due to uneven dispersion, the invention provides a conductive rubber for flexible sensors and a preparation method thereof , the conductive rubber prepared by this preparation method has excellent conductivity on the basis of ensuring good and effective rubber properties, and is suitable for flexible sensors

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  • Conductive rubber for flexible sensor and preparation method thereof

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specific Embodiment 1

[0033] The component raw materials are: 100 parts of natural latex (solid content 60wt.%); 3.0 parts of ordinary zinc oxide; 1.5 parts of accelerator ZDMC; 2.0 parts of sulfur; 3.0 parts of conductive carbon black SP; 10 parts of graphite KS6 ; Anti-aging agent 4010 is 1.0 parts; Sodium alginate is 1.0 parts.

[0034] Preparation method: weigh each component according to the amount of raw materials of the above components; add sodium alginate into water and stir for 15 minutes to fully dissolve, then add zinc oxide, accelerator ZDMC, sulfur, conductive carbon black SP, graphite KS6 and anti-aging After preliminary stirring and dispersing of agent 4010 into a slurry, the slurry was ground in a grinder at room temperature for 5 hours to form a stable and uniform aqueous dispersion of conductive agent; then the aqueous dispersion of conductive agent was added to natural rubber latex, and Stir at room temperature for 30 minutes to form a latex mixture; pour the latex mixture into ...

specific Embodiment 2

[0036] The component raw materials are: 100 parts of natural rubber latex (solid content 60wt.%); 5.0 parts of active zinc oxide; 2.0 parts of accelerator ZDMC; 3.0 parts of sulfur; 5.0 parts of conductive carbon black SP; 13 parts of graphite KS6 ; Antiaging agent 6PPD is 1.5 parts; Sodium polymethacrylate is 2.0 parts.

[0037] Preparation method: weigh each component according to the amount of raw materials of the above components; add sodium polymethacrylate into water and stir for 15 minutes to fully dissolve, then add active zinc oxide, accelerator ZDMC, sulfur, conductive carbon black SP, graphite KS6 After preliminarily stirring and dispersing into a slurry with the anti-aging agent 6PPD, the slurry was ground in a grinder at room temperature for 5 hours to form a stable and uniform aqueous dispersion of the conductive agent; then the aqueous dispersion of the conductive agent was added to the natural rubber latex and stirred at room temperature for 30 minutes to form ...

specific Embodiment 3

[0039]The component raw materials are: styrene-butadiene rubber emulsion (solid content 60wt.%) is 100 parts; active zinc oxide is 5.0 parts; accelerator ZDMC is 3.0 parts; sulfur is 2.0 parts; conductive carbon black SP is 5.0 parts; graphite KS6 is 15 parts; silver-plated nickel powder 5.0 parts; anti-aging agent DNP 2.0 parts; fatty alcohol polyoxyethylene ether sodium sulfate 5.0 parts.

[0040] Preparation method: weigh each component according to the amount of raw materials of the above components; add fatty alcohol polyoxyethylene ether sodium sulfate into water and stir for 15 minutes to fully dissolve, then add active zinc oxide, accelerator ZDMC, sulfur, conductive carbon black SP , graphite KS6, silver-plated nickel powder and anti-aging agent DNP are initially stirred and dispersed into a slurry, and the slurry is ground in a grinder at room temperature for 5 hours to form a stable and uniform aqueous dispersion of conductive agent; then the conductive Add the wate...

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Abstract

The invention discloses a conductive rubber for a flexible sensor and a preparation method thereof. The preparation method comprises the steps that a prepared conductive agent aqueous dispersion liquid and liquid latex are mixed through a wet mixing technology to achieve the effective mixing of the conductive agent and the latex on the nanoscale, and raw rubber is formed through drying and dehydration. According to the method, the situation that rubber molecules are damaged when traditional conductive rubber is mixed through a dry method is avoided, two or more different micromorphologies are adopted for the conductive agents, and by means of the synergistic effect of the conductive agents of the different micromorphologies, the conductive agents in different dimensions can build a more perfect conductive network in a rubber matrix, so that the conductivity of the conductive rubber is improved.

Description

technical field [0001] The invention relates to a conductive rubber and a preparation method thereof, in particular to a conductive rubber for a flexible sensor and a preparation method thereof, and belongs to the technical field of functional materials for flexible sensors. Background technique [0002] With the continuous improvement of the level of intelligence, sensors, as important nerve tentacles in the world of things, are becoming more and more important. In the face of more and more special signals and special environments, sensors need to have the characteristics of transparency, flexibility, extension, freedom to bend or even fold, easy to carry, wearable, etc. Traditional brittle silicon semiconductor sensors are difficult to meet these new requirements, and Flexible sensors based on elastomeric materials such as rubber can effectively solve these problems. [0003] At present, flexible sensors usually use conductive rubber as the sensing material. The principle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/02C08L9/08C08K13/04C08K13/06C08K7/00C08K7/18C08K3/04C08K9/02C08K3/08C08J3/215
CPCC08L7/02C08L9/08C08J3/215C08J2307/02C08J2309/08C08J2405/04C08J2433/02C08J2471/02C08K13/04C08K7/00C08K7/18C08K3/04C08K2201/001C08K2201/014C08K2003/0862C08L5/04C08L33/02C08L71/02C08K13/06C08K9/02C08K3/08
Inventor 徐伟杰叶菊华李腾飞高露徐率李石磊
Owner 苏州怒鲨智能科技有限公司
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