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Spider silk protein/polylactic acid composite nano fibre yarn and preparation method thereof

A composite nanofiber, spider silk protein technology, applied in fiber processing, filament/thread forming, cellulose/protein conjugated rayon, etc., can solve the problem of unable to obtain yarn, achieve uniformity improvement, diameter Reduced, good flexibility

Inactive Publication Date: 2009-04-29
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, experiments have found that continuous yarns cannot be obtained when using the above-mentioned continuous electrospinning method to directly use the spider silk or polylactic acid of the tiger tarantula as raw materials.

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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  • Spider silk protein/polylactic acid composite nano fibre yarn and preparation method thereof
  • Spider silk protein/polylactic acid composite nano fibre yarn and preparation method thereof
  • Spider silk protein/polylactic acid composite nano fibre yarn and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation of different ratios of spider silk protein / polylactic acid composite nanofiber yarns comprises the following steps:

[0033] (1) Preparation of spinning solution: Dissolve pure and dry polylactic acid (PLA) in 99% hexafluoroisopropanol (HFIP) at room temperature, and after fully stirring and dissolving, a 9% by mass percentage is obtained. PLA solution; the tiger's bird spider silk is dissolved in 99% hexafluoroisopropanol solution, after being fully stirred and filtered with a metal filter, a 1% spider silk protein solution with a mass percentage of 1% is obtained, and then the two solutions are mixed Mix evenly according to a certain weight ratio to obtain spinning solution;

[0034] (2) Preparation of bath liquid: Dissolve the commercially available hydrophilic silicone softener of model KGF-903 produced by Nantong Chongchuan Keguang New Material Research Institute in deionized water to prepare a bath liquid with a mass percentage of 0.2% ;

[0035]...

Embodiment 2

[0045] The preparation of the spider silk protein / polylactic acid composite nanofiber yarn under different heating zone temperatures comprises the following steps:

[0046] (1) Preparation of spinning solution: Dissolve pure and dry polylactic acid (PLA) in 99% hexafluoroisopropanol (HFIP) at room temperature, and after fully stirring and dissolving, a 9% by mass percentage is obtained. PLA solution; the tiger's bird spider silk is dissolved in 99% hexafluoroisopropanol solution, after being fully stirred and filtered with a metal filter, a 1% spider silk protein solution with a mass percentage of 1% is obtained, and then the two solutions are mixed Mix evenly at a weight ratio of 7:3 to obtain a spinning solution;

[0047] (2) Preparation of bath liquid: Dissolve the commercially available hydrophilic silicone softener of model KGF-903 produced by Nantong Chongchuan Keguang New Material Research Institute in deionized water to prepare a bath liquid with a mass percentage of 0...

Embodiment 3

[0056] The preparation of spider silk protein / polylactic acid composite nanofiber yarn comprises the following steps:

[0057] (1) Preparation of spinning solution: Dissolve pure and dry polylactic acid (PLA) in 99% hexafluoroisopropanol (HFIP) at room temperature, and after fully stirring and dissolving, a 9% by mass percentage is obtained. PLA solution; the tiger's bird tarantula silk is dissolved in 99% hexafluoroisopropanol solution, fully stirred and filtered with a metal filter to obtain a 0.8% spider silk protein solution by mass percentage, and then the two solutions are mixed Mix evenly at a weight ratio of 7:3 to obtain a spinning solution;

[0058] (2) Preparation of bath liquid: Dissolve the commercially available hydrophilic silicone softener of model KGF-903 produced by Nantong Chongchuan Keguang New Material Research Institute in deionized water to prepare a bath liquid with a mass percentage of 0.4% ;

[0059] (3) adopting the electrospinning method, adding t...

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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Abstract

The invention discloses a method for preparing spider silk protein / polylactic acid composite nano-fiber yarn. The method comprises the following steps of preparing a spinning solution, preparing a bath solution and then adopting an improved electrostatic spinning method to guide, heat, wind and shape bunched fibers, so as to obtain the spider silk protein / polylactic acid composite nano-fiber yarn. The composite nano-fiber yarn of the invention can be continuously spun for more than 10 hours and have no broken ends, and a certain amount of spider silk protein effectively reduces the diameter of the fibers and improves the strength of the yarn. In addition, the fracture strength and flexibility of the composite nano-fiber yarn can be further improved through secondary stretching and combined twisting, so that the composite nano-fiber yarn can be applied in biomedical materials and other fields better.

Description

technical field [0001] The invention relates to a continuous nano-scale fiber yarn, in particular to a nano-scale fiber yarn composed of polylactic acid and spider silk protein and a preparation method thereof. Background technique [0002] Spider silk has become one of the research hotspots at home and abroad because of its excellent mechanical properties and biocompatibility. The application of spider silk as a protein fiber in the field of biomaterials is very impressive, but the problem that plagues researchers is that the amount is too small, and it is difficult to carry out conventional textile processing. Tiger tarantula is a kind of spider that can be cultivated artificially. It is raised in a special spider farm. Although its main purpose is to extract toxins for pharmaceutical use, at the same time, a large amount of spider silk can be obtained through this way fiber, which provides a raw material source for the processing of regenerated spider silk. [0003] At ...

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): D01D5/00D02J1/22D02G3/04D01F8/14D01F8/02D01F6/92
CPCD01D5/0046
Inventor 潘志娟赵静娜刘红波
Owner SUZHOU UNIV
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