| abstract |
A kind of preparation method of the high-efficiency adsorption natural fragrant sponge, carry out according to the following steps: (1) weigh chitosan, β-cyclodextrin and gelatin in a beaker, add the concentration of 0.05mol/L-0.1mol/L acetic acid solution to completely dissolve chitosan, β-cyclodextrin and gelatin to obtain a mixed solution; (2) add a glutaraldehyde aqueous solution with a mass concentration of 25-50% to the mixed solution, stir evenly, and pour it into a mold, Incubate in an oven to form a gel, put it in a 4°C refrigerator for 8-12 hours, then put it in a -18--20°C refrigerator to pre-freeze for 8-12 hours, then freeze-dry it at -80°C for 24-48 hours, take it out, Obtain sponge; (3) add essence into ethanol, obtain the essence solution that volume concentration is 1-5%; (4) the sponge that obtains is cut into small pieces, put into essence solution, and carry out ultrasonic treatment; (5) ) Take out the sponge, put it in a 30-40 ℃ oven, and take it out after 1-2 hours to obtain a fragrant sponge. The preparation method of the invention can improve the mechanical properties and adsorption properties of the sponge and prolong the fragrance release time. |