A method for preparing membranes based on evaporative self-assembly
An evaporation self-assembly, diaphragm technology, applied in the manufacture of inductors/transformers/magnets, electrical components, circuits, etc., can solve the problems of aggravating the eddy current loss between particles, low demagnetization factor, increasing the conductivity between particles, etc., to achieve widening Application frequency range, effect of high permeability
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Embodiment 1
[0025] First, weigh 10g of flake FeSiAl in a beaker, add 1g of PAA solution, 4g of anhydrous sodium acetate in turn, add an appropriate amount of ethylene glycol as a solvent, and stir evenly with a glass rod. Next, the above mixture was transferred to a three-necked flask, and the reaction apparatus was assembled, and the temperature of the water bath was adjusted to 80° C., and the rotation speed was 350 r / min. After 20 minutes, 1 g of anhydrous calcium chloride was added. After reacting for 20 minutes, the reaction product was repeatedly washed with water and absolute ethanol until the solution was clear and transparent. Finally, the product is dried in an oven. Get FeSiAl@Ca 2+ Powder.
[0026] First weigh FeSiAl@Ca 2+ Put 1 g of powder in a mortar and weigh 0.06 g of SA. Add SA into a mortar and grind until there is no light yellow sodium alginate powder on the surface. Next, add the ground mixture into a beaker, add an appropriate amount of water, and stir evenly. ...
Embodiment 2
[0029] First weigh 10g of flaky amorphous powder into a beaker, add 2.5g of PAA solution, 5g of anhydrous sodium acetate, and an appropriate amount of ethylene glycol as a solvent, and stir evenly with a glass rod. Next, the above mixture was transferred to a three-necked flask, and the reaction apparatus was assembled. The temperature of the water bath was adjusted to 90°C, the rotation speed was 400r / min, and the reaction time was 30min. Add 3 g of anhydrous calcium chloride, and the reaction time is 30 min. The reaction product was repeatedly washed with water and absolute ethanol for 2 to 3 times until the solution was clear and transparent. Finally, the product is dried in an oven. Get amorphous powder@Ca 2+ Powder.
[0030] First weigh the amorphous powder@Ca 2+ Put 1g of powder in a mortar, then weigh 0.15g SA. Add SA to a mortar and mortar for grinding. Add the ground mixture into a beaker, add an appropriate amount of water, and stir well. Finally, add 0.1g of...
Embodiment 3
[0033] First, weigh 10g of flake FeNi into a beaker, add 0.5g of PAA solution, 1g of anhydrous sodium acetate in turn, add an appropriate amount of ethylene glycol as a solvent, and stir evenly with a glass rod. Next, the above mixture was transferred to a three-necked flask, and the reaction apparatus was assembled, and the temperature of the water bath was adjusted to 20° C., and the rotation speed was 50 r / min. After 10 minutes, 0.9 g of anhydrous calcium chloride was added. After reacting for 5 minutes, the reaction product was repeatedly washed with water and absolute ethanol until the solution was clear and transparent. Finally, the product is dried in an oven. Get FeNi@Ca 2+ Powder.
[0034] First weigh FeNi@Ca 2+ Put 1g of powder in a mortar and weigh 0.04g SA. Add SA into a mortar and grind until there is no light yellow sodium alginate powder on the surface. Next, add the ground mixture into a beaker, add an appropriate amount of water, and stir evenly. Finall...
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