Porous cellulose microsphere adsorbent used for blood perfusion and preparation method thereof
A technology of porous cellulose and cellulose microspheres, which is used in blood circulation treatment, chemical instruments and methods, and other chemical processes to achieve the effects of not easy to swell, not easily deform, and fast adsorption capacity
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[0027] Example 1
[0028] (1) Add 80g of sodium hydroxide, 10g of lithium hydroxide, 80g of urea, 50g of thiourea, 120g of polyethylene glycol 400 and 1000ml of distilled water into a three-necked flask with stirring. After stirring at room temperature, reduce the temperature to- At 10°C, add 50g of dried cotton to this solution, stir and soak for 30 minutes, increase the stirring speed until the cellulose is completely dissolved to form a clear and transparent solution, and then vacuum and de-air bubbles for use.
[0029] (2) Add 100 ml of Tween 80 to 4000 ml of liquid paraffin and stir evenly, then lower the temperature to minus 10°C, then slowly add the oil phase to the prepared cellulose solution while ensuring that the stirring speed is 800 rpm. And slowly return to room temperature. After 30 minutes of reaction, it was gradually heated to 60°C for curing reaction for 1.5 hours, and then diluted hydrochloric acid was added and then left to stand for stratification, and the up...
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[0032] Example 2
[0033] (1) Add 60g of sodium hydroxide, 20g of lithium hydroxide, 60g of urea, 60g of thiourea, 100g of polyethylene glycol 400 and 1000ml of distilled water into a three-necked flask with stirring. After stirring at room temperature, reduce the temperature to- At 8°C, add 50g of dried cotton to this solution, stir and soak for 30 minutes, increase the stirring speed until the cellulose is completely dissolved to form a clear and transparent solution, and then vacuum and de-air bubbles for use.
[0034] (2) Add 90 ml of oleic acid to 5000 ml of liquid paraffin and stir evenly, then lower the temperature to minus 8°C, then slowly add the oil phase to the prepared cellulose solution, while ensuring that the stirring speed is 800 rpm, and Slowly return to room temperature. After 30 minutes of reaction, it was gradually heated to 60°C for curing reaction for 1.5 hours, and then diluted hydrochloric acid was added and then left to stand for stratification, and the up...
Example Embodiment
[0037] Example 3
[0038] (1) Add 80g of sodium hydroxide, 30g of lithium hydroxide, 70g of urea, 50g of thiourea, 130g of polyethylene glycol 800 and 1000ml of distilled water into a three-necked flask with stirring. After stirring at room temperature, reduce the temperature to- At 10°C, add 60g of dried cotton to this solution, stir and soak for 30 minutes, increase the stirring speed until the cellulose is completely dissolved to form a clear and transparent solution, and then vacuum and de-air bubbles for use.
[0039] (2) Add 150 ml of Tween 80 to 5000 ml of liquid paraffin and stir evenly, then lower the temperature to minus 10°C, then slowly add the oil phase to the prepared cellulose solution while ensuring that the stirring speed is 600 revolutions per minute. And slowly return to room temperature. After 30 minutes of reaction, it was gradually heated to 60°C for curing reaction for 1.5 hours, and then diluted hydrochloric acid was added and then left to stand for stratif...
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