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Graphene modified silk fiber preparing method

A technology of graphene modification and silk fiber, which is applied in the field of textile materials, can solve the problems of large damage to the original properties of silk fiber and ignore the performance of regenerated silk fiber itself, and achieve excellent physical and chemical biological shape and excellent biocompatibility and comfort, the effect of good mechanical properties

Active Publication Date: 2016-09-07
ZHAOQING LAIXIN BODY BEAUTY UNDERWEAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The regenerated silk fiber prepared by this method strengthens and toughens the regenerated silk fiber through the synergistic effect of graphene oxide and metal elements, and ignores the consideration of the performance of the regenerated silk fiber itself, which greatly damages the original performance of the silk fiber

Method used

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  • Graphene modified silk fiber preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Add graphene oxide to a deionized aqueous solution, and ultrasonically treat it for 10 minutes until it is uniformly mixed to form a graphene suspension with a concentration of 2 mg / ml.

[0029] (2) Pure silk fibroin solution is obtained by degumming, dissolving, dialysis, purification and filtration of silk fibers. The pure silk fibroin solution is placed in a container and dried naturally at room temperature to form a regenerated silk fibroin membrane, and then the regenerated silk fibroin membrane is dissolved in 90% A silk spinning solution with a mass fraction of 15% is made from formic acid.

[0030] (3) Add graphene suspension and low-molecular-weight chitosan to the silk spinning solution, and stir thoroughly to form a uniform and stable spinning solution. Among the components in the spinning solution, by weight, the silk protein is 20 parts, graphene oxide is 1 part, chitosan is 2 parts, and the regenerated silk fiber is obtained from the spinning solution throu...

Embodiment 2

[0033] (1) Add graphene oxide to a deionized aqueous solution, and ultrasonically treat it for 30 minutes until it is uniformly mixed to form a graphene suspension with a concentration of 20 mg / ml.

[0034] (2) Pure silk fibroin solution is obtained by degumming, dissolving, dialysis, purification and filtration of silk fibers. The pure silk fibroin solution is placed in a container and dried naturally at room temperature to form a regenerated silk fibroin membrane, and then the regenerated silk fibroin membrane is dissolved in 90% A silk spinning solution with a mass fraction of 25% is made from formic acid.

[0035] (3) Add graphene suspension and low-molecular-weight chitosan to the silk spinning solution, and stir thoroughly to form a uniform and stable spinning solution. Among the components in the spinning solution, by weight, the silk protein is 50 parts, 10 parts of graphene oxide, 30 parts of chitosan, and finally the spinning solution is subjected to electrospinning techn...

Embodiment 3

[0038] (1) Add graphene oxide to a deionized aqueous solution, and ultrasonically treat it for 20 minutes until it is uniformly mixed to form a graphene suspension with a concentration of 10 mg / ml.

[0039] (2) Degumming, dissolving, dialysis, purification and filtration of the silk fiber to obtain a pure silk fibroin solution. The pure silk fibroin solution is placed in a container and dried naturally at room temperature to form a regenerated silk fibroin membrane, and then the regenerated silk fibroin membrane is dissolved in chloroform A silk spinning solution with a mass fraction of 20% is prepared.

[0040] (3) Add graphene suspension and low-molecular-weight chitosan to the silk spinning solution, and stir thoroughly to form a uniform and stable spinning solution. Among the components in the spinning solution, by weight, the silk protein is 30 parts, graphene oxide is 5 parts, chitosan is 10 parts, and the regenerated silk fiber is obtained from the spinning solution through ...

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Abstract

The invention provides a graphene modified silk fiber preparing method. Regenerated silk aqueous solution is prepared by dissolving a fibroin membrane and then mixed with graphene oxide aqueous solution and chitosan with low molecular weight to prepare regenerated silk fiber, and a graphene film is formed on the surface of the regenerated silk fiber through atomization; in this way, graphene exists inside the regenerated silk fiber and on the surface of the regenerated silk fiber, the functions of the silk fiber are modified fundamentally, high strength, high conductivity and high thermal stability of the silk fiber are realized, and the original properties of the silk fiber are optimized to the maximum degree by optimizing the regenerated silk aqueous solution preparing process.

Description

Technical field: [0001] The invention belongs to the technical field of textile materials, and specifically relates to a method for preparing graphene-modified silk fibers. Background technique: [0002] As we all know, graphene contains an ideal two-dimensional crystal structure, so it has excellent physical and chemical properties, such as good mechanical properties, excellent electrical conductivity, high thermal conductivity, etc. Graphene oxide with a large number of oxygen-containing functional groups is better than it Single-layer structure, hydrophilicity, functional group modification, high specific surface area, excellent mechanical properties and other characteristics are used as reinforcing agents added to polymers to improve the physical properties of composite materials. [0003] Silk fibroin is composed of silk fibroin and sericin. Silk fibroin mainly consists of random crimping part, α helix and β sheet. The β sheet can exist in the form of crystals. Therefore, silk...

Claims

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/02D01F8/18D01F4/02D01F1/09D06M11/74
CPCD01F1/09D01F4/02D01F8/02D01F8/18D06M11/74D06M2101/12
Inventor 王文庆
Owner ZHAOQING LAIXIN BODY BEAUTY UNDERWEAR
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