A kind of ionic liquid method regeneration animal keratin fiber and preparation method thereof
A protein fiber and production method technology, applied in the textile field, can solve the problems of terminal fiber strength, easy loss of protein, difficulty in silk formation, etc., and achieve the effects of stable fiber performance, increased tensile stress, and suitable for large-scale production and promotion.
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Embodiment 1
[0026] An ionic liquid method for regenerating animal keratin fibers, the regenerated animal keratin fibers are swelled, dissolved, cross-linked, defoamed, and filled with pulverized animal keratin under the synergistic action of a cross-linking agent and a self-cross-linking agent through an ionic liquid Mixed, obtained by dry jet wet spinning, drying and self-crosslinking.
[0027] In this embodiment, the ionic liquid is composed of parts A and B, and the part A is 1-ethyl-3-methylimidazolium (EMIM) cation. Part B is a phosphate ester (DEP) type anion. The cross-linking agent is 3-(2-pyridyldimercapto)propionic acid N-hydroxysuccinimide ester (SPDP). The self-crosslinking agent is N-methylolacrylamide (NMA).
[0028] The ionic liquid accounts for 50% of the total mass of ionic liquid and animal keratin; the amount of cross-linking agent accounts for 5% by weight of animal keratin; the amount of self-crosslinking agent accounts for 1% by weight of animal keratin.
[0029] ...
Embodiment 2
[0038] In the present embodiment, the ionic liquid method regenerates animal keratin fibers, and the differences from Example 1 are:
[0039] The ionic liquid is composed of parts A and B, and part A is 1-allyl-3-methylimidazolium (AMIM) cations. The part B is AlCl 3 Anion-like. The crosslinking agent is glyoxal. The self-crosslinking agent is N,N'-methylenebisacrylamide (MBA). The ionic liquid accounts for 25% of the total mass of ionic liquid and animal keratin; the amount of cross-linking agent accounts for 0.5% by weight of animal keratin; the amount of self-crosslinking agent accounts for 10% by weight of animal keratin.
[0040] Its preparation method comprises the following steps:
[0041] 1) Swelling: Mix crushed animal keratin with ionic liquid and swell at room temperature for 24 hours;
[0042] 2) Dissolution: Stir the swollen mixed material mechanically and dissolve it at 120°C within 1 hour. The dissolution time is controlled within 12 hours to form a viscous...
Embodiment 3
[0050] In the present embodiment, the ionic liquid method regenerates animal keratin fibers, and the differences from Example 1 are:
[0051] The ionic liquid is composed of parts A and B, and the part A is N-methylimidazole (HMIM) and 1-butyl-3-methylimidazole (BMIM) cations. The Part B is CF 3 SO - 3 . The crosslinking agent is salicylaldehyde. The self-crosslinking agent is N,N'-methylenebisacrylamide (MBA).
[0052] The ionic liquid accounts for 90% of the total mass of the ionic liquid and animal keratin; the amount of the crosslinking agent accounts for 5% of the weight of the animal keratin; the amount of the self-crosslinking agent accounts for 5% of the weight of the animal keratin.
[0053] The preparation method of described ionic liquid method regeneration animal keratin fiber, comprises the following steps:
[0054] 1) Swelling: Mix crushed animal keratin with ionic liquid and swell at room temperature for 10 hours;
[0055] 2) Dissolution: Stir the swollen...
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