Soya protein/polyurethane/polyacrylonitrile blended composite fiber and its preparing method
A technology of soybean protein and polyacrylonitrile, which is applied in the field of preparation for wearing comfort
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Embodiment 1
[0025] Add 10 kg of soybean protein into 90 kg of dimethyl sulfoxide / urea mixed solvent, stir and slowly heat up to dissolve it fully, and obtain a transparent soybean protein solution; in the mixed solvent, the weight concentration of co-solvent urea is 10%;
[0026] 17 kilograms of polyacrylonitrile are dissolved in 83 kilograms of dimethylsulfoxide;
[0027] The weight solid content of synthetic polyurethane is 25% resin solution.
[0028] The above three solutions were mixed in proportion to prepare a spinning dope, wherein the soybean protein was 15 parts by weight, the polyurethane was 5 parts by weight, and the polyacrylonitrile was 80 parts by weight.
[0029] The total solid content of the terpolymer in the spinning dope is 18%.
[0030] The above-mentioned spinning stock solution was degassed and filtered through the spinneret and then pressed into the coagulation bath. The coagulation bath was 50% dimethyl sulfoxide aqueous solution, the bath temperature was 25° C....
Embodiment 2
[0032] Add 12 kg of soybean protein into 88 kg of dimethyl sulfoxide / urea mixed solvent, stir and slowly raise the temperature to fully dissolve it, and obtain a transparent soybean protein solution; in the mixed solvent, the weight concentration of co-solvent urea is 14%;
[0033] 20 kilograms of polyacrylonitrile are dissolved in 80 kilograms of dimethylsulfoxide;
[0034] Synthetic polyurethane solid content is 28% resin solution. The above three solutions were mixed in proportion to prepare a spinning dope, wherein the parts by weight of soybean protein were 12 parts by weight, the parts by weight of polyurethane were 8 parts by weight, and the parts by weight of polyacrylonitrile were 80 parts.
[0035] The total solid content of the terpolymer in the spinning dope is 20%.
[0036]The above-mentioned spinning stock solution was degassed and filtered through the spinneret and then pressed into the coagulation bath. The coagulation bath was 55% dimethyl sulfoxide aqueous s...
Embodiment 3
[0038] Add 15 kg of soybean protein into 85 kg of dimethyl sulfoxide / urea mixed solvent, stir and slowly heat up to fully dissolve it, and obtain a transparent soybean protein solution; in the mixed solvent, the weight concentration of co-solvent urea is 14%;
[0039] 20 kilograms of polyacrylonitrile are dissolved in 80 kilograms of dimethylsulfoxide;
[0040] Synthetic polyurethane solid content is 30% resin solution.
[0041] The above three solutions were mixed in proportion to prepare a spinning dope, wherein the soybean protein was 15 parts by weight, the polyurethane was 10 parts by weight, and the polyacrylonitrile was 75 parts by weight.
[0042] The total solid content of the terpolymer in the spinning dope is 20%.
[0043] The above-mentioned spinning stock solution was degassed and filtered through the spinneret and then pressed into the coagulation bath. The coagulation bath was 50% dimethyl sulfoxide aqueous solution, the bath temperature was 30° C., and the spi...
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Abstract
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