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Electrorheological fluid with high breakdown resistance and preparation method thereof

A technology of electrorheological fluid and breakdown resistance, which is applied in the direction of lubricating composition and petroleum industry, can solve the problems of low yield stress, narrow application range of electrorheological fluid temperature, and low breakdown electric field, so as to improve yield stress, The effect of overcoming the low breakdown electric field and improving the stability of the material

Active Publication Date: 2020-10-16
宁波麦维科技有限公司
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Problems solved by technology

[0004] In order to solve the above problems, the present invention provides an electrorheological fluid with high breakdown resistance and its preparation method, which solves the defects of narrow temperature application range, low yield stress and low breakdown electric field of electrorheological fluid in the prior art

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  • Electrorheological fluid with high breakdown resistance and preparation method thereof
  • Electrorheological fluid with high breakdown resistance and preparation method thereof

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Embodiment Construction

[0023] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail in conjunction with the accompanying drawings and specific embodiments. The following embodiments are used to illustrate the present invention, but not to limit the scope of the present invention.

[0024] An electrorheological fluid with high breakdown resistance exists in the form of a colloidal suspension, including nano-particle transition metal salts, non-ionic additives and mixed polar organic oils; the transition metal salts, by mass In terms of parts, it includes 75 parts of barium chloride, 2 parts of rubidium chloride, 33 parts of titanium chloride, 106 parts of oxalic acid 2-hydrate and 44 parts of urea; the nonionic additive is silicone polyether, and the organic Silicone polyether accounts for 3% of the total mass of the mixed polar organic oil and 1% of the total mass of the electrorheological f...

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Abstract

The invention relates to the field of electro-rheological fluid materials, in particular to an electro-rheological fluid with the resistance to breakdown and a preparation method of the electro-rheological fluid. The electro-rheological fluid is in a form of a colloidal suspension and is prepared from nano-particle type transition metal salt, a nonionic additive and mixed type polar organic oil. The preparation method comprises the following steps: preparing the nano-particle type transition metal salt, mixing the non-ionic additive and the mixed type polar organic oil, and preparing the electro-rheological fluid. The electro-rheological fluid and the preparation method solve the problems of narrow temperature application range, low yield stress and low breakdown electric field of the electro-rheological fluid in the prior art.

Description

technical field [0001] The invention relates to the field of electrorheological fluid materials, in particular to an electrorheological fluid with high breakdown resistance and a preparation method thereof. Background technique [0002] Electrorheological Fluids, referred to as ER liquids or ER fluids, are prepared by dispersing solid particles with high conductivity, low conductivity and high dielectric constant in an insulating liquid with low dielectric constant, and are usually a suspension. Liquid-solid transition can occur under the action of electric field. Specifically, when an electric field is applied, ER fluid exhibits solid-like properties, such as the ability to transmit shear stress; the transient time from liquid-like properties to solid-like properties can be about 1-10 ms, and this solid-state transition This transition process is reversible when the electric field is removed. This phenomenon is known as the ER effect, and its change in apparent viscosity ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10M177/00C10N40/16
CPCC10M169/04C10M177/00C10M2201/081C10M2207/123C10M2215/102C10M2229/02C10M2229/041C10N2030/60C10N2040/16
Inventor 温维佳方雅莹
Owner 宁波麦维科技有限公司
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