Preparing method of organic-inorganic compound microfiltration membrane
An inorganic composite and microfiltration membrane technology, which is applied in the field of microfiltration membranes, can solve the problems of high temperature resistance and thermal instability of polymer microfiltration membranes, and achieve improved mechanical strength, good oxidation resistance and thermal stability, The effect of excellent temperature resistance
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[0031] Put 5% coniferous wood pulp in a high-consistency disc refiner, and beat 6-8 times under the condition of a distance of 0.02-0.05mm to obtain a nano-cellulose slurry, and place the nano-cellulose slurry in an oven. Dry at 80-100°C for 4-6 hours to obtain nanocellulose, and weigh 40-60 parts of nano-cellulose, 0.1-0.3 parts of tetramethylpiperidine nitrogen oxide, 1-3 Sodium bromide, 12~18 parts of sodium hypochlorite solution with a mass concentration of 10%, 120~180 parts of deionized water, 60~90 parts of absolute ethanol, adding nanocellulose to deionized water, at room temperature at 400~480r / min Stir at a rotating speed for 20~30min, and then in an ultrasonic disperser, ultrasonically disperse for 10~15min under the condition of 400~500W to obtain a nanocellulose dispersion, add tetramethylpiperidine nitrogen oxide and sodium bromide to the nanocellulose In the dispersion liquid, stir at a speed of 200-300r / min for 10-20min at room temperature to obtain a mixed dis...
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