Method for preparing kaoline nanotube
A technology of kaolin nanotubes and kaolin, which is applied in the field of preparation of kaolin nanotubes, can solve the problems of small aspect ratio of product nanotubes, insufficient economic benefits, cumbersome process, etc., and achieve high yield, large economic value, and tube diameter Evenly distributed effect
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example 1
[0012] 10 g of 100-mesh Suzhou kaolin washed with water was selected as the raw material, and the kaolin was added to the intercalation agent dimethyl sulfoxide to prepare a slurry containing 0.5 g of kaolin per milliliter of the intercalation agent. Sonicate at a temperature of 50° C. for 30 minutes, and then react in a water bath for 20 hours. After the reaction, 11.6 g of powder was obtained by drying, which was added into 100 ml of methanol, stirred and reacted at room temperature for 48 hours, and centrifuged to obtain surface methoxy-grafted kaolin. Take 5g of methoxy-grafted kaolin and add it into 31ml of methanol solution with a concentration of 1mol / L cetyltrimethylammonium chloride, stir at room temperature for 10 hours, and then wash with ethanol until water is added to the washing liquid without foam Then, after drying, the heating rate was 3°C / min, and the temperature was raised to 400°C for 6 hours to obtain kaolin nanotubes, with an average diameter of 18nm, an ...
example 2
[0014] 10 g of 150-mesh Suzhou kaolin washed with water was selected as raw material, and the kaolin was added to the intercalation agent dimethyl sulfoxide to prepare a slurry containing 1 g of kaolin per milliliter of the intercalation agent. Sonicate at a temperature of 60° C. for 30 minutes, and then react in a water bath for 25 hours. After the reaction, 11.8 g of powder was obtained by drying, which was added into 200 ml of methanol, stirred and reacted at room temperature for 56 hours, and centrifuged to obtain surface methoxy-grafted kaolin. Take 5 g of methoxyl-grafted kaolin and add it into 28 ml of methanol solution of 1.25 mol / L cetyltrimethylammonium chloride, stir at room temperature for 20 hours, and then wash with ethanol until water is added to the washing liquid. Until it becomes foamy, it is then dried and calcined at a constant temperature of 500°C for 5 hours at a heating rate of 4°C / min to obtain kaolin nanotubes with an average diameter of 20nm and an av...
example 3
[0016] 10 g of 200-mesh Suzhou kaolin washed with water was selected as the raw material, and the kaolin was added to the intercalation agent dimethyl sulfoxide to prepare a slurry containing 0.5 g of kaolin per milliliter of the intercalation agent. Sonicate at a temperature of 50° C. for 30 minutes, and then react in a water bath for 30 hours. After the reaction, 11.5 g of powder was obtained by drying, which was added to 300 ml of methanol, stirred and reacted at room temperature for 72 hours, and centrifuged to obtain surface methoxy-grafted kaolin. Take 5 g of methoxyl-grafted kaolin and add it into 25 ml of methanol solution of 1.5 mol / L cetyltrimethylammonium chloride, stir at room temperature for 30 hours, and then wash with ethanol until water is added to the washing liquid. Until the foam is formed, it is then dried and calcined at a heating rate of 5°C / min to 500°C for 4 hours to obtain kaolin nanotubes with an average diameter of 18nm and an average length of 900-1...
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