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A kind of gelatin fiber spinning method

A gelatin and fiber technology, applied in the field of fiber manufacturing, can solve the problems of not being able to fully reflect the excellent properties of gelatin materials, the amount of modifiers added, and the limitation of gelatin applications, etc., to achieve low requirements for production equipment, improve mechanical properties, and simple process Effect

Active Publication Date: 2018-11-06
BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The amount of modifier added in the blended modified macromolecular material is large (as described in CN 105001463A), so that the excellent performance of the gelatin material itself cannot be fully reflected
The cross-linking agents commonly used in cross-linking modification generally have strong toxicity, such as metal ions, formaldehyde, glutaraldehyde, epoxy compounds, etc., which limit the application of gelatin in the biological and medical fields, so looking for new non-toxic Cross-linking agent becomes a new research direction

Method used

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  • A kind of gelatin fiber spinning method
  • A kind of gelatin fiber spinning method
  • A kind of gelatin fiber spinning method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Step 1: Weigh 110g of gelatin and add it to a beaker filled with 190ml of water, let it swell in a water bath at 60°C for 2 hours, then stir at 110r / min for 3 hours to obtain a gelatin solution; add 10mL of 0.011g / mL TGase enzyme to the gelatin solution (0.1% of the gelatin mass), stirred at 60° C. for 1 h to obtain spinning dope;

[0069] Step 2. Add the spinning stock solution to the stock solution tank of the spinning machine. The temperature of the stock solution tank is 60 ° C. After vacuum degassing for 2 hours, enter the coagulation bath from the spinneret with a micropore diameter of 0.09 mm to solidify the primary fiber. The coagulation bath contains 5 The 430g / L sodium sulfate aqueous solution of % (weight) TGase enzyme, coagulation bath temperature is 40 ℃, and spinning speed is 80m / min, obtains the nascent fiber of gelatin, and sample number is 1#.

Embodiment 2～4

[0071] The operation steps are the same as in Example 1, the difference is only to change the amount of TGase enzyme added to the gelatin solution in step 1, and add 10 mL of TGase enzyme of 0.0165g / mL, 0.022g / mL and 0.0275g / mL respectively (gelatin 0.15%, 0.20% and 0.25% of mass), the gelatin nascent fibers obtained are numbered successively as 2# (Example 2), 3# (Example 3) and 4# (Example 4).

Embodiment 5～7

[0073] Operation procedure is identical with embodiment 3, and difference is only to be 180m / min at 25 ℃ spinning speeds to as-spun fiber, respectively to fiber drawing-off 2 times, 3 times and 4 times, the gelatin fiber that obtains is numbered successively as 5# (implementation Example 5) and 6# (embodiment 6) and 7# (embodiment 7).

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Abstract

The invention discloses a gelatin fiber spinning method. The preparation method comprises the following steps: gelatin is dissolved in a solvent, after swelling, gelatin and a cross-linking agent are mixed, mixture liquid is added into a piece of spinning equipment, nascent fibre is prepared, aftertreatment is carried out, and a gelatin fiber finished product is obtained. Transglutaminase is used as a cross-linking agent with usage safety, prepared gelatin fiber has good stability in water, mechanical properties are improved, and the method is suitable for fields of biology and medical science.

Description

technical field [0001] The invention relates to the field of fiber manufacturing, in particular to a gelatin fiber spinning method and products thereof. Background technique [0002] Gelatin is a peptide molecular polymer material obtained by partial hydrolysis of collagen. It has good biocompatibility and degradability and is widely used in food, medicine and other fields. Gelatin fiber is mainly prepared by electrospinning method. Because of its low production efficiency, domestic scholars have focused their attention on wet spinning method. However, the pure gelatin fiber produced by wet method has low mechanical strength and is easily soluble in water at room temperature. , limiting the scope of application of gelatin. [0003] In order to improve these properties of gelatin, methods such as blending modification or cross-linking modification are usually required. The amount of modifier added in the blended modified macromolecular material is relatively large (as descr...

Claims

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Application Information

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IPC IPC(8): D01F4/00D01F1/10C08J3/24D01D1/02D01D5/06D01D5/12D01D1/10
CPCC08J3/24C08J2389/00D01D1/02D01D1/103D01D5/06D01D5/12D01F1/10D01F4/00
Inventor 王锐董振峰杨憬朱志国张秀芹张文娟刘继广
Owner BEIJING INSTITUTE OF CLOTHING TECHNOLOGY