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A kind of quantum dot/regenerated silk fiber based on electrospinning and preparation method thereof

A regenerated silk and electrospinning technology, which is applied in electrospinning, fiber treatment, rayon manufacturing, etc., can solve the problem that the thickness of organic polymers and the uniformity of quantum dots are difficult to guarantee, and the skin-friendly performance and stability of use are difficult to balance. It is difficult to ensure the stability of use performance and other issues, and achieve excellent biocompatibility, excellent skin-friendly performance, and the effect of promoting recycling

Active Publication Date: 2019-07-02
SHANGHAI YONGZI FASHION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface of the fluorescent silk prepared by this method contains alternate layers of quantum dots and organic polymers. The thickness of the organic polymers and the uniformity of the quantum dots are difficult to ensure, and they are combined with the silk fibers through electrostatic adsorption, which is weak and difficult to ensure the stability of the performance. sex
[0005] It can be seen from the above prior art that it is difficult to have both the skin-friendly performance and the use stability of the composite fiber materials prepared by using quantum dots as raw materials at present. Therefore, it is very necessary to prepare a composite fiber that is both skin-friendly and stable.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) After the wool is removed from the stains attached to the wool fiber surface, the wool is immersed in a 5g / L sodium carbonate solution and a 1g / L 30% hydrogen peroxide mixed solution, and pretreated at 70°C for 5-10min, Take it out and dry it at 50°C to get pretreated wool.

[0030] (2) Immerse the pretreated wool in 0.3mM cadmium source precursor for 24 hours, take it out and wash it fully, then immerse it in 0.3mM sulfur source precursor for 30min, take it out and wash it fully, and then immerse it in the cadmium source precursor with a mass fraction of 2 % sodium bisulfite, 5% urea by mass fraction, and 0.5% sodium dodecylbenzenesulfonate by mass fraction in a wool solution, heated and stirred at 90°C for 3 hours, and centrifuged to obtain wool keratin / Nano cadmium sulfide solution.

[0031] (3) After the silk fiber is washed and degummed, it is dissolved in a ternary solution with a molar ratio of calcium chloride, absolute ethanol and deionized water of 1:2:8...

Embodiment 2

[0034] (1) After the wool is removed from the stains attached to the surface of the wool fiber, the wool is immersed in a 10g / L sodium carbonate solution and a 30% hydrogen peroxide mixed solution of 3g / L, pretreated at 80°C for 10min, and taken out. Dry at 60°C to obtain pretreated wool.

[0035] (2) Immerse the pretreated wool in 0.5mM cadmium source precursor for 36 hours, take it out and wash it fully, then immerse it in 0.5mM sulfur source precursor for 60min, take it out and wash it fully, and then immerse it in the 0.5mM sulfur source precursor % sodium bisulfite, 8% urea by mass fraction, and 1% sodium dodecylbenzenesulfonate by mass fraction in a wool solution, heated and stirred at 100°C for 6 hours, and centrifuged to obtain wool keratin / Nano cadmium sulfide solution.

[0036] (3) After the silk fiber is washed and degummed, it is dissolved in a ternary solution with a molar ratio of calcium chloride, absolute ethanol and deionized water of 1:2:8, heated and stirr...

Embodiment 3

[0039](1) After the wool is removed from the stains attached to the surface of the wool fiber, the wool is immersed in a mixed solution of 8g / L sodium carbonate solution and 2g / L 30% hydrogen peroxide, pretreated at 75°C for 8min, and taken out. Dry at 55°C to obtain pretreated wool.

[0040] (2) Immerse the pretreated wool in 0.4mM cadmium source precursor for 30 hours, take it out and wash it fully, then immerse it in 0.4mM sulfur source precursor for 45min, take it out and wash it fully, and then immerse it in the 0.4mM sulfur source precursor % sodium bisulfite, 6% urea in mass fraction, and 0.7% sodium dodecylbenzenesulfonate in wool solution, heated and stirred at 95°C for 4 hours, and centrifuged to obtain wool keratin / Nano cadmium sulfide solution.

[0041] (3) After the silk fiber is washed and degummed, it is dissolved in a ternary solution with a molar ratio of calcium chloride, absolute ethanol and deionized water of 1:2:8, heated and stirred at 60°C until comple...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The present invention provides a preparation method of a quantum dot / regenerated silk fiber based on electrospinning. The preparation method comprises: removing stain from wool, immersing in an alkali liquid, pre-treating, taking out, drying to obtain pre-treated wool, immersing in a cadmium source precursor, taking out, carrying out water washing, immersing in a sulfur source precursor, taking out, carrying out water washing, immersing a wool dissolving liquid, carrying out heating stirring, carrying out centrifugal filtration to obtain a wool keratin / nanometer cadmium sulfide solution, washing and degumming silk fiber, dissolving in a ternary solution, carrying out heating stirring, carrying out dialysis filtration to obtain a silk protein solution, mixing the wool keratin / nanometer cadmium sulfide solution and the silk protein solution, adding a PVA solution, uniformly stirring, and carrying out electrospinning to obtain the quantum dot / regenerated silk fiber based on the electrospinning.

Description

technical field [0001] The invention belongs to the technical field of textile materials, and in particular relates to a quantum dot / regenerated silk fiber based on electrospinning and a preparation method thereof. Background technique [0002] With the rapid development of nanotechnology, nanocomposites show unusually excellent properties, and have broad application prospects in medical, construction, textile and other fields. The specific preparation method is usually to combine nanoparticles with matrix materials. The formation of nanocomposite materials can not only solve the stability problem of nanoparticles, but also modify the matrix material to give it new characteristics and functions. [0003] Nano-quantum dots are a relatively new fluorescent nanomaterial, also known as semiconductor nanocrystals, which are nanoparticles composed of special elements with a radius smaller than or close to the Bohr radius. Nano-quantum dots have excellent optical specificity and bi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/02D01F8/10D01F1/10D01D5/00
CPCD01D5/003D01F1/10D01F8/02D01F8/10
Inventor 王文庆
Owner SHANGHAI YONGZI FASHION
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