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Preparation method of regenerated silk protein fiber based on rare-earth/metal ions

A technology of regenerated silk and protein fibers, which is applied in the field of preparation of regenerated silk protein fibers, can solve the problems of few researches on regenerated silk fibers, achieve skin-friendly and good biocompatibility, improve mechanical strength and toughness, mechanical properties and Functional good effect

Inactive Publication Date: 2017-02-22
DONGGUAN LIANZHOU INTPROP OPERATION MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many studies on the finishing of silk fabrics based on rare earth elements, but there are not many studies on regenerated silk fibers modified by rare earth elements.

Method used

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  • Preparation method of regenerated silk protein fiber based on rare-earth/metal ions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) After degumming the silk, place it in CaCl with a molar ratio of 1:2:8 2 、C 2 h 5 OH and H 2 O ternary solution, heated and stirred at 60° C. and 500 rpm for 2 h to dissolve, dialyzed, and concentrated to obtain a 5% mass fraction of silk protein aqueous solution with a relative molecular weight of 126-238 kDa.

[0030] (2) In parts by weight, dissolve 15 parts of chloroauric acid in deionized water, add 20 parts of a rare earth mixture of cerium chloride and lanthanum chloride with a molar ratio of 1:1, and after fully stirring, add 50 parts of The aqueous solution of silk protein is adjusted to a pH value of 7.5 to obtain a modified silk protein solution.

[0031] (3) Mix the silk protein modification solution with a volume ratio of 50:2 and the glutaraldehyde crosslinking agent, stir at a constant temperature for 30 minutes at 4° C., and let stand for 5 minutes to obtain a spinning solution.

[0032] (4) Pour the spinning solution into the syringe, at room te...

Embodiment 2

[0034] (1) After degumming the silk, place it in CaCl with a molar ratio of 1:2:8 2 、C 2 h 5 OH and H 2 O ternary solution, heated and stirred at 70° C. and 700 rpm for 3 h to dissolve, dialyzed, and concentrated to obtain an aqueous silk protein solution with a mass fraction of 8% and a relative molecular weight of 126-238 kDa.

[0035] (2) In parts by weight, dissolve 20 parts of chloroauric acid in deionized water, add 25 parts of a rare earth mixture of cerium chloride and lanthanum chloride with a molar ratio of 1:1, and after fully stirring, add 70 parts of The aqueous solution of silk protein is adjusted to a pH value of 8.5 to obtain a modified silk protein solution.

[0036] (3) Mix the silk protein modification solution with a volume ratio of 50:5 and the glutaraldehyde crosslinking agent, stir at a constant temperature of 10° C. for 60 minutes, and let stand for 10 minutes to obtain a spinning solution.

[0037] (4) Spinning solution is poured in the syringe, at...

Embodiment 3

[0039] (1) After degumming the silk, place it in CaCl with a molar ratio of 1:2:8 2 、C 2 h 5 OH and H 2 O ternary solution, heated and stirred at 65° C. and 600 rpm for 2.5 h to dissolve, dialyzed, and concentrated to obtain an aqueous silk protein solution with a mass fraction of 6% and a relative molecular weight of 126-238 kDa.

[0040](2) In parts by weight, dissolve 18 parts of chloroauric acid in deionized water, add 22 parts of a rare earth mixture of cerium chloride and lanthanum chloride with a molar ratio of 1:1, and after fully stirring, add 60 parts of The aqueous solution of silk protein is adjusted to a pH value of 8 to obtain a modified silk protein solution.

[0041] (3) Mix the silk protein modification solution with a volume ratio of 50:3 and the glutaraldehyde crosslinking agent, stir at a constant temperature at 6° C. for 40 minutes, and let stand for 8 minutes to obtain a spinning solution.

[0042] (4) Spinning solution is poured in the syringe, at ro...

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Abstract

The invention provides a preparation method of regenerated silk protein fiber based on rare-earth / metal ions. The preparation method comprises the following steps: after silk is degummed, putting the degummed silk in a ternary solution containing CaCl2, C2H5O and H2O, heating and stirring for dissolving, dialyzing, and concentrating to obtain an aqueous silk-protein solution; dissolving chloroauric acid in deionized water, adding rare-earth chloride, stirring, then adding the aqueous silk-protein solution, then adding a glutaraldehyde cross-linking agent, stirring at constant temperature, and standing to obtain a spinning solution; carrying out electrostatic spinning on the spinning solution under room temperature to form as-spun fiber, then putting the as-spun fiber into sodium citrate vapor for treatment, taking out, and drying to obtain the regenerated silk protein fiber based on the rare-earth / metal ions. The regenerated silk protein fiber prepared by the invention has the advantages of good strength and flexibility, bright and white color and excellent appearance as well as the functions of antibiosis and ultraviolet resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of textile materials, and in particular relates to a preparation method of regenerated silk protein fibers based on rare earth / gold ions. Background technique [0002] As we all know, opal fibers are divided into natural protein fibers and regenerated protein fibers. Regenerated protein fibers are mainly prepared by extracting protein from protein-containing waste. Regenerated silk protein fiber belongs to regenerated protein fiber. It uses waste silk, silk spinning waste and other waste protein materials as raw materials to extract protein, and then prepares it by wet spinning or other spinning techniques, and then regenerates silk There is still a certain gap between the physical properties of protein fibers and natural protein fibers. [0003] With the rapid development of science and technology, materials and new materials in many fields have been applied to the textile field, especially nanomaterials e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F4/02D01F1/10D01F1/09D01F11/02D01D1/02D01D5/00
CPCD01F4/02D01D1/02D01D5/0007D01D5/0015D01F1/09D01F1/10D01F1/103D01F11/02
Inventor 王文庆
Owner DONGGUAN LIANZHOU INTPROP OPERATION MANAGEMENT CO LTD
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