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Natural nanometer fiber preparation method

A nanofiber, natural technology, applied in fiber processing, spinning solution preparation, textile and paper making, etc., can solve the problems of complex process, high energy consumption and large power involved in the equipment of electrospinning method

Inactive Publication Date: 2006-02-08
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The electrospinning method has complex procedures, high energy consumption, large equipment involved in electric power, and a large initial investment. The prepared nanofibers are regenerated nanofibers;
[0006] The self-assembly method needs to prepare high-purity spider silk protein or silk fibroin, and the prepared nanofibers are regenerative nanofibers, which cannot be produced on a large scale.

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

[0030] use as figure 1 The device shown is used to prepare natural nanofibers: soak the spider silk in a beaker filled with ultrapure water; the power of the ultrasonic wave is 600 watts, and the frequency is 20 kHz. In 2.5 hours, natural spider silk nanofibers of 30 to 120 nanometers can be prepared, such as figure 2 shown.

Embodiment 2

[0032] use as figure 1 In the device shown, the spider silk is soaked in a beaker filled with formic acid solvent; the power of the ultrasonic wave is 600 watts, and the frequency is 20 kHz, and the probe of the ultrasonic generator is deep into the beaker, and the ultrasonic cavitation is performed for 2.0 hours, namely Natural spider silk nanofibers of 30-120 nanometers can be prepared.

Embodiment 3

[0034] use as figure 1 In the device shown, the degummed mulberry silk is soaked in a beaker filled with ultrapure water; the power of the ultrasonic wave is 600 watts, the frequency is 20 kHz, the probe of the ultrasonic generator is deep into the beaker, and the ultrasonic cavitation is performed for 2.5 hours , can prepare natural silk nanofibers of 30-120 nanometers, such as image 3 shown.

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Abstract

The present invention relates to the preparation process of natural nanometer fiber for tissue engineering, air filtering, clothing material and composite reinforced aeronautical and astronautical material, and is especially the preparation process of natural nanometer spider silk fiber and cocoon silk fiber. Through soaking in certain solution and ultrasonic dissociation, natural nanometer fiber of diameter 30-100 nm may be prepared. The prepared natural nanometer fiber may find its wide application in tissue engineering, air filtering, clothing material and composite reinforced aeronautical and astronautical material. The present invention has simple operation, simple equipment, low power consumption and low cost, and is suitable for both lab preparation and industrial production.

Description

technical field [0001] The invention relates to a method for preparing natural nanofibers used in tissue engineering (such as cell culture scaffolds, drug delivery systems, and bone mineralization), air filtration, clothing cloth, and aerospace composite reinforcements, in particular to The preparation method of natural nano spider silk fiber and natural nano silk fiber. Background technique [0002] In the existing preparation methods of spider silk nanofibers and silk nanofibers, electrospinning and self-assembly methods are often used. [0003] The electrospinning method is to first prepare a spider silk protein solution or a silk fibroin protein solution, and then add it to a plastic tube with a capillary end, and then insert a copper electrode connected to a positive high voltage power supply into the precursor solution. A rotatable grounded iron drum is installed in front of the plastic pipe, and a layer of aluminum foil is laid on it as a receiving plate. An electri...

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): D01D5/00D01D1/02D01F4/02
Inventor 赵红平冯西桥
Owner TSINGHUA UNIV
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