Waterproof moisture-permeable film and preparation method thereof
A technology of waterproof and moisture-permeable membrane and moisture-permeable membrane, which is applied in the direction of chemical instruments and methods, synthetic resin layered products, layered products, etc., and can solve problems such as uneven micropore structure, uneven micropore, complicated method and process, etc. , to achieve improved waterproof performance and moisture permeability, excellent moisture permeability and waterproof performance, and uniform microporous structure
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[0037]Preparation of S1, moisture permeability film layer 10 coating liquid; pyrin protein, calcium chloride, ethanol, and deionized water mixed and dialyzed, collected dialysate and mixed with polylactic acid and added to dimethyl sulfoxide , Stir mixed with stirring and deprecated at room temperature, resulting in a moisture permeable film layer 10 coating liquid;
[0038]Preparation of the matrix fiber membrane; TPU polyurethane and the addition of N, N-dimethylformamide dissolve, collect the matrix dissolution, and add chitosan, lithium chloride and tetrabutylammonium chloride, stir Mixed and placed at room temperature to stand, collect the spinning liquid and electrostatically spinning, the spinning matrix fiber membrane is obtained;
[0039]S3, a water-repellent film was prepared, and the prepared matrix fiber membrane was placed in a acetic acid solution, and after standing for 6 to 8 h, filtered and placed in an oven, and the waterproof fiber membrane was collected.
[0040]S4, the p...
Example Embodiment
[0050]Example 1
[0051]According to the weight of the weight, 10 parts of silk fibroin, 3 parts of calcium chloride, 6 parts of ethanol, and 60 parts of deionized water mixed and dialyzed, and the dialysate and polylactic acid were collected and added to dimethyl. In sulfoxide, stirring is mixed and placed at room temperature to redeemer, and the moisture permeable film layer 10 coating liquid; TPU polyurethane is dissolved in N, N-dimethylformamide, collect the matrix dissolution and pair According to the weight of the weight, 45 parts of the substrate dissolved, 3 parts of chitosan, 0.01 parts of lithium chloride and 0.5 parts of tetrabutylammonium chloride, stir mixed with stirring and placed at room temperature to stand, collect The spinning fluid is treated with electrospinning, the spinning voltage is 12 kV, the spinning flow rate is 2 ml / h, the receiving distance is 9 cm, electrospinning and collects spinning fibers, the spinning matrix fiber film; the base body will be prepa...
Example Embodiment
[0052]Example 2
[0053]According to the weight of the weight, 12 parts of silk fibroin, 4 parts of calcium chloride, 7 parts of ethanol and 70 parts of deionized water mixed and mixed, collected, collected and polylactic acid compound and added to dimethyl. In sulfoxide, stirring is mixed and placed at room temperature to redeemer, and the moisture permeable film layer 10 coating liquid; TPU polyurethane is dissolved in N, N-dimethylformamide, collect the matrix dissolution and pair According to the weight of the weight, 47 parts of the base dissolved liquid, 4 parts chitosan, 0.01 parts of lithium chloride and 0.7 parts of tetrabutylammonium chloride, stir mixed and stirred at room temperature, and collected. The spinning liquid is treated with electrospinning, the spinning voltage is 13 kV, the spinning liquid flow rate is 2 mL / h, the receiving distance is 10 cm, electrospinning and collects spinning fibers, the spinning matrix fiber membrane; the matrix will be prepared The fiber...
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