3D printing chitosan material using ionic liquid as medium, and preparation method thereof
A technology of ionic liquid and printing shell, applied in the direction of additive processing, etc., can solve the problems of harmful impurities in organisms, inability to melt, difficult three-dimensional molding, etc., and achieve the effect of simple steps, easy application, and easy operation
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Embodiment 1
[0017] (1) Chitosan with a molecular weight of 200000Da is dissolved in the ionic liquid 1-ethyl-3-methylimidazole acetate (EMIMAc) at 110° C. under stirring at 650 rpm to obtain 0.1%-20% wt of chitosan- Ionic liquid printing materials.
[0018] (2) Put the chitosan-ionic liquid printing material into the printing cylinder and load it into the 3D printer.
[0019] (3) Set the 3D printing grid model, and perform 3D printing at room temperature in ethanol.
Embodiment 2
[0021] (1) Chitosan with molecular weight 200000Da is dissolved in ionic liquid 1-ethyl-3-methylimidazole acetate (EMIMAc) under stirring at 120°C at 600rpm to obtain 0.1%-20%wt chitosan- Ionic liquid printing materials.
[0022] (2) Put the chitosan-ionic liquid printing material into the printing cylinder and load it into the 3D printer.
[0023] (3) Set the 3D printing grid model, and perform 3D printing at 23°C in ethanol.
Embodiment 3
[0025] (1) Dissolving chitosan with a molecular weight of 200,000Da at 100°C and stirring at 800rpm into the ionic liquid 1-ethyl-3-methylimidazole acetate (EMIMAc) to obtain 0.1%-20%wt chitosan - Ionic liquid printing materials.
[0026] (2) Put the chitosan-ionic liquid printing material into the printing cylinder and load it into the 3D printer.
[0027] (3) Set 3D printing models with different spacing, and perform 3D printing at room temperature in medical alcohol.
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