Electrorheological fluid embedded in conductor and preparation method thereof
An electrorheological fluid and conductor technology, applied in the petroleum industry, lubricating compositions, etc., can solve the problems of poor service life and temperature stability, unsatisfactory practical application, low yield strength, etc., and achieve good temperature stability and small leakage current , The effect of high yield strength
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[0037] The preparation method of electrorheological fluid of the present invention is:
[0038] 1) Introduce carbon source in butyl titanate hydrolysis method, this carbon source can be organic matter (such as: glucose, lipid) and inorganic matter (such as: amorphous carbon, graphite, graphene, reduced graphene oxide. The 20 ~30ml of distilled water and 50-500ml of absolute ethanol dissolve 1-10g of carbon source organic matter, and make A solution;
[0039] 2) Dissolve 10-100g of butyl titanate in 100-1000ml of absolute ethanol to prepare liquid B;
[0040] 3) Slowly drop liquid A into liquid B which is continuously and vigorously stirred, wash the precipitate several times and then dry it to obtain a dry powder. The dried powder is placed in a tube furnace and processed at high temperature to obtain a gray to black powder.
[0041] 4) The powder is mixed with silicone oil, carefully ground to obtain an electrorheological fluid, and finally the electrorheological fluid is h...
Embodiment 1
[0043] The preparation method of the electrorheological fluid of the present invention is as follows:
[0044] First, dissolve 1g of glucose in 30ml of distilled water and 200ml of absolute ethanol to make solution A; dissolve 30g of butyl titanate in 300ml of absolute ethanol to make solution B; slowly drop solution A into solution B that is continuously and vigorously stirred, Half an hour after the dropwise addition, the mixture was centrifuged to obtain a white precipitate, which was washed twice with water and absolute ethanol, and then dried to obtain a dry powder. Put the dried powder into a tube furnace, and treat it under a nitrogen atmosphere at 600°C for 3 hours to obtain a black powder; the transmission electron microscope image of the black powder is as follows figure 2 As shown, the darker part is carbon particles; the Raman spectrum is shown in image 3 As shown, titanium dioxide is anatase phase, and carbon is amorphous carbon.
[0045] The thermogravimetric...
Embodiment 2
[0048] The preparation method of the electrorheological fluid of the present invention is as follows:
[0049] First, dissolve 1g of sucrose with 30ml of distilled water and 200ml of absolute ethanol to make solution A; dissolve 30g of butyl titanate in 300ml of absolute ethanol to make solution B; slowly drop solution A into solution B that is continuously and vigorously stirred, Half an hour after the dropwise addition, the mixture was centrifuged to obtain a white precipitate, which was washed twice with absolute ethanol and then dried to obtain a dry powder. The dried powder was put into a tube furnace and treated at 500° C. for 3 h under a nitrogen atmosphere to obtain a gray powder. Mix 2g of black powder with 1g of silicone oil with a viscosity of 50cst, grind carefully to obtain electrorheological fluid, and finally heat treat electrorheological fluid at 150°C for 2 hours to remove water.
[0050] The relationship between the yield strength and the electric field streng...
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