A method for preparing curcumin-loaded polyacrylonitrile fiber by dope dyeing method
A technology of curcumin-loaded polyacrylonitrile fiber and dope coloring, applied in spinning solution preparation, wet spinning, dry spinning, etc., can solve the problems of high pollution, high cost, high energy consumption, etc.
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Embodiment 1
[0022] A kind of stock solution coloring method prepares the method that loads curcumin polyacrylonitrile fiber:
[0023] The first step is to prepare spinning dope. First prepare the polyacrylonitrile spinning stock solution according to the existing technology, wherein the dry solid content A of polyacrylonitrile is 99 parts by weight, then add curcumin and drug transdermal absorption accelerator into the spinning stock solution and stir evenly, The dry solid amount B that adds curcumin is 0.5 weight part, and the drug transdermal absorption accelerator that adds is oleic acid, and dry solid amount C is 0.5 weight part, and analytical pure N, N-dimethylacetamide (DMAc) aqueous solution is used as Solvent, D is 400 parts by weight, (A+B+C): (A+B+C+D)=20%.
[0024] The second step is to make polyacrylonitrile fiber from the spinning stock solution containing curcumin and drug transdermal absorption accelerator, adopt wet spinning process, and use 50% N,N-dimethylacetamide aqu...
Embodiment 2
[0026] In the present embodiment, the dry solid content A of polyacrylonitrile is 85 parts by weight, then curcumin and drug transdermal absorption accelerator are added in this spinning dope and stirred evenly, the dry solid content B of adding curcumin is 10 parts by weight part, the drug transdermal absorption accelerator added is oleic acid, and the dry solid content C is 5 parts by weight, and analytically pure N,N-dimethylacetamide (DMAc) aqueous solution is used as solvent, and D is 355 parts by weight, (A+ B+C): (A+B+C+D) = 22%. The dry-jet wet-spinning process is adopted, the 50% N,N-dimethylacetamide aqueous solution at 5°C is used as the coagulation bath, the three-stage drafting is carried out, and the bright yellow drug-loaded fiber is finally made into a winding roller. Other methods are the same as in Example 1.
Embodiment 3
[0028] In the present embodiment, the dry solid content A of polyacrylonitrile is 80 parts by weight, then curcumin and drug transdermal absorption accelerator are added in this spinning dope and stirred evenly, the dry solid content B of adding curcumin is 15 parts by weight part, the drug transdermal absorption accelerator added is azone, and the dry solid amount C is 5 parts by weight, and the analytically pure N,N-dimethylacetamide (DMAc) aqueous solution is used as a solvent, and D is 456 parts by weight, (A+ B+C): (A+B+C+D) = 18%. The dry-jet wet-spinning process is adopted, the 50% N,N-dimethylacetamide aqueous solution at 5°C is used as the coagulation bath, the three-stage drafting is carried out, and the bright yellow drug-loaded fiber is finally made into a winding roller. Other methods are the same as in Example 1.
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