Preparation method of super-hydrophobic full-biomass-based oil-water separation material
A technology for separating materials and biomass, which is applied in the field of preparation of superhydrophobic all-biomass-based oil-water separation materials, which can solve the problem of high oil absorption, achieve the effects of enhanced adsorption performance, simplified production process, and enhanced mechanical strength
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Embodiment 1
[0026] Take 5 g sodium carboxymethylcellulose and 5 g sodium periodate respectively, and make 150 ml solution respectively, 50 o Put it in a water bath and stir it at a constant speed until it is completely dissolved, then mix it and adjust the pH to 3, 50 o The reaction was carried out at C for 4 h, and the reaction solution was poured into absolute ethanol for precipitation. The obtained white precipitate was washed 5 times with absolute ethanol, and then the precipitate was configured into a solution and put into a dialysis bag for dialysis for 5 days. After dialysis, the solution was freeze-dried to obtain bisaldehyde carboxymethylcellulose. Mix the dialdehyde carboxymethyl cellulose solution with a mass fraction of 0.1% and the collagen solution with a mass fraction of 0.8%, wherein the dry weight ratio of dialdehyde carboxymethyl cellulose to collagen is 1:8, pour the mixed solution into the mold at –20 o C for 3 days, and then freeze-dried in a freeze dryer for 2 days...
Embodiment 2
[0029] Take by weighing 5 g of sodium carboxymethylcellulose, join in the reactor that stirring device, thermometer are housed, then add 300ml distilled water, the sodium periodate of 7.625 g, the pH value is adjusted to 2, at 45 oStir and react in a water bath at about C for about 4 h. After the reaction, add acetone 2 times the volume of the reaction solution to precipitate dialdehyde carboxymethyl cellulose, and filter after the precipitation is complete. After filtration, washing, drying and crushing, dialdehyde carboxymethyl cellulose is obtained. Weigh 1 g collagen dry product and add 100 ml of water, 5 o Stir continuously at about C for about 8 h to obtain a collagen solution with a concentration of about 1%. At the same time, weigh 0.05 g of dialdehyde carboxymethyl cellulose and add it to 100 ml of water, 75 o Heating in a water bath at about C and stirring continuously for about 0.5 h to obtain a carboxymethyl cellulose solution with a concentration of about 0.05% ...
Embodiment 3
[0032] Take by weighing 5 g of sodium carboxymethyl cellulose, join in the reactor that stirring device, thermometer are housed, then add 300ml distilled water, the sodium periodate of 6.25 g, the pH value is adjusted to 1.5, at 45 o Stir and react in a water bath at about C for about 5 h. After the reaction, add 2 times the volume of absolute ethanol to precipitate dialdehyde carboxymethyl cellulose, and filter after the precipitation is complete. After filtration, washing, drying and crushing, dialdehyde carboxymethyl cellulose is obtained. Weigh 1 g collagen dry product and add 100 ml of water, 5 o Stir continuously at about C for about 8 h to obtain a collagen solution with a concentration of about 1%. At the same time, weigh 0.01 g of dialdehyde carboxymethyl cellulose and add it to 100 ml of water, 75 o Heat in a water bath at about C and keep stirring for about 0.5 h to obtain a dialdehyde carboxymethyl cellulose solution with a concentration of about 0.01%. At room ...
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