Production of organic sol variable current fluid of nanometer titanium oxide
A technology of nano-titanium oxide and electrorheological fluid, applied in the petroleum industry, base materials, lubricating compositions, etc., can solve the problems of poor particle suspension stability, strong aggregation, high particle density, etc., achieve excellent anti-sedimentation, avoid Effects of environmental pollution and simple preparation conditions
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Embodiment 1
[0017] Tetrabutyl titanate was used as the hydrolysis precursor, sodium dodecylbenzenesulfonate was used as the gelling agent and organic surface modifier, and 6M hydrochloric acid was used as the hydrolysis inhibitor. Measure 50ml of deionized water and add 3.5ml to 5ml of 6mol / L hydrochloric acid to make an acidic solution. Slowly drop 7.5g of tetrabutyl titanate into the above acidic solution, and react at room temperature for 5 hours to obtain a light blue transparent aqueous sol. Add 0.64g ~ 1.2g of sodium dodecylbenzenesulfonate and 2ml of 6mol / L hydrochloric acid to 30ml of deionized water. After they are completely dissolved, they are dropped into the above-mentioned transparent water sol and stirred for 3 hours to obtain a white emulsion. Then add 5ml of simethicone into 150ml of petroleum ether and stir to disperse evenly, then add the petroleum ether solution of simethicone into the above white emulsion, stir vigorously for 5 hours to replace the nano-titanium oxide...
Embodiment 2
[0019] Tetrabutyl titanate was used as the hydrolysis precursor, sodium dodecylbenzenesulfonate was used as the gelling agent and organic surface modifier, and 6M hydrochloric acid was used as the hydrolysis inhibitor. Measure 50ml of deionized water, add 3.5ml to 5ml of 6mol / L hydrochloric acid and 1ml of formamide to make an acidic solution. Slowly drop 7.5 g of tetrabutyl titanate into the above acidic solution, and react at room temperature for 5 hours to obtain a white emulsion. Add 0.64g ~ 1.2g sodium dodecylbenzenesulfonate and 2ml 6mol / L hydrochloric acid into 30ml deionized water, after complete dissolution, drop into the above white emulsion and stir for 3 hours to obtain a white cloudy liquid. Add 5ml of simethicone to 150ml of petroleum ether and stir to disperse evenly, then add the mixed solution to the white turbid liquid, stir vigorously for 5 hours, pour the liquid into a separating funnel and let it stand for stratification, and the nano-titanium oxide cannot...
Embodiment 3
[0021] Tetrabutyl titanate was used as the hydrolysis precursor, sodium dodecylbenzenesulfonate was used as the gelling agent and organic surface modifier, and 6M hydrochloric acid was used as the hydrolysis inhibitor. Measure 50ml of deionized water, add 3.5ml to 5ml of 6mol / L hydrochloric acid and 0.9g of chromium nitrate to make an acidic solution. Slowly drop 7.5 g of tetrabutyl titanate into the above acidic solution, and react at room temperature for 5 hours to obtain a green emulsion. Add 0.64g-1.2g sodium dodecylbenzenesulfonate and 2ml 6mol / L hydrochloric acid into 30ml deionized water, after the dissolution is complete, drop into the above green emulsion and stir for 3 hours to obtain a green cloudy liquid. Add 5ml of simethicone to 150ml of petroleum ether and stir to disperse evenly, then add the mixed solution to the green turbid liquid, stir vigorously for 5 hours, then pour the liquid into a separatory funnel and let it stand for stratification. There is no extr...
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