Kaolin/TiO2 nanotube composite particle electrorheological fluid materials
A nanotube composite, electrorheological fluid technology, applied in the direction of base material, lubricating composition, petroleum industry, etc., can solve the problems of low mechanical value, easy settling, narrow working temperature range, etc.
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[0010] Example 1: First add 6g of kaolin to 60ml of absolute ethanol, stir well at room temperature for 3 hours, at the same time mix 14ml of butyl titanate with 14ml of absolute ethanol, and drop it under stirring Into the ethanol suspension of kaolin, further fully stir for 5 hours, at this time the Ti / soil ratio is 0.329; finally a certain amount of absolute ethanol containing a small amount of secondary deionized water is dropped, and the system is stirred for 6 hours. After standing overnight, an opaque gel can be obtained; the gel is then dried at 80°C for 4 hours and at 90°C for 2 hours. After grinding, kaolin / titanium oxide coated composite particles can be obtained, and then calcined at 200°C for 1 hour, 400°C for 1 hour, and 550°C for 2 hours to obtain kaolin / TiO 2 Nanocomposite particles. Then add 400ml of 10M NaOH solution into the PTFE bottle, and after heating to 120℃, slowly add the aforementioned kaolin / TiO 2 The nanocomposite particles are about 8g, and the concen...
Example Embodiment
[0011] Example 2: First add 6g of kaolin to 60ml of absolute ethanol, fully stir at room temperature for 3 hours, at the same time mix 12ml of butyl titanate and 12ml of absolute ethanol evenly, and drop it under stirring Into the ethanol suspension of kaolin, further fully stir for 5 hours, at this time the Ti / soil ratio is 0.282; finally a certain amount of absolute ethanol containing a small amount of secondary deionized water is dripped, and the stirring is continued for 6 hours, and then the system is still After standing overnight, an opaque gel can be obtained; the gel is then dried at 80°C for 4 hours and at 90°C for 2 hours. After grinding, kaolin / titanium oxide coated composite particles can be obtained, and then calcined at 200°C for 1 hour, 400°C for 1 hour, and 550°C for 2 hours to obtain kaolin / TiO 2 Nanocomposite particles. Then add 400ml of 10M NaOH solution into the PTFE bottle, and after heating to 120℃, slowly add the aforementioned kaolin / TiO 2 Nanocomposite pa...
Example Embodiment
[0012] Example 3: First add 6g of kaolin to 13ml of absolute ethanol, stir well at room temperature for 3 hours, at the same time mix 12ml of butyl titanate and 12ml of absolute ethanol evenly, and drop it under stirring Into the ethanol suspension of kaolin, further fully stir for 5 hours. At this time, the Ti / soil ratio is 0.305; finally, a certain amount of absolute ethanol containing a small amount of secondary deionized water is dropped in, and the stirring is continued for 6 hours, and then the system is still After standing overnight, an opaque gel can be obtained; the gel is then dried at 80°C for 4 hours and at 90°C for 2 hours. After grinding, kaolin / titanium oxide coated composite particles can be obtained, and then calcined at 200°C for 1 hour, 400°C for 1 hour, and 550°C for 2 hours to obtain kaolin / TiO 2 Nanocomposite particles. Then add 400ml of 10M NaOH solution into the PTFE bottle, and after heating to 120℃, slowly add the aforementioned kaolin / TiO 2 Nanocomposit...
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