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Preparation method of collagenous fiber, collagenous fiber and application

A technology of collagen fibers and primary fibers, applied in the fields of application, preparation of collagen fibers, and collagen fibers, can solve problems such as lack of spinnability, and achieve the effect of wide application and strong plasticity

Active Publication Date: 2022-03-15
ZHEJIANG HEURISTIC NEW MATERIAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, wet spinning has higher requirements on the performance of the spinning stock solution, and the quality of the spinning stock solution is also a necessary condition for obtaining the raw silk. 1.99cN / dtex, almost no spinnability

Method used

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  • Preparation method of collagenous fiber, collagenous fiber and application
  • Preparation method of collagenous fiber, collagenous fiber and application
  • Preparation method of collagenous fiber, collagenous fiber and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-11

[0068] As shown in Table 1, the main difference of Examples 1-11 is that the pH of the solution, the pH of the spinning solution, and the pH of the coagulation bath are different.

[0069] Embodiment 1 is taken as an example below for description.

[0070] The preparation method of the collagen fiber that embodiment 1 provides, comprises the following steps:

[0071] (1) Preparation of spinning dope

[0072] Take 100g of cowhide, soak it in 1000mL of sodium carbonate solution with a concentration of 1mg / mL for 2 hours, rinse it with distilled water and dry it in the air, adjust the pH of the solution to 4.5 with acetic acid, keep the solution at 34°C, put the cowhide into the solution fully dissolved in

[0073] Wherein, the dissolving liquid is specifically pepsin solution, and the mass ratio of pepsin and deionized water is 0.2:10, more specifically, the mass ratio of cowhide, pepsin, and deionized water is 1:0.2:10, specifically , cowhide 100g, pepsin 20g, deionized wate...

Embodiment 11-16

[0085] The difference between Examples 11-16 and Example 7 is that the ratio of the coagulation bath is different, see Table 2 for details.

[0086] Table 2 Example 8-13 coagulation bath ratio table

[0087] Protein curing agent% Dehydrating agent% pH adjuster% water% Example 7 8 36 0.8 55.2 Example 11 10 36 0.8 53.2 Example 12 12 36 0.8 51.2 Example 13 10 42 0.8 47.2 Example 14 10 47 0.8 42.2 Example 15 10 42 1 47 Example 16 10 42 3 45

Embodiment 17-18

[0089] The difference between Examples 17-19 and Example 15 is that the ratio of the coagulation bath is different, and the coagulation bath also includes a zinc salt. The zinc salt is zinc sulfate as an example for illustration below, see Table 3 for details.

[0090] Table 3 Example 14-16 coagulation bath ratio table

[0091] Protein curing agent% Dehydrating agent% pH adjuster% Zinc salt% water% Example 15 10 42 1 0 47 Example 17 10 42 1 1.2 45.8 Example 18 10 42 1 2 45 Example 19 10 42 1 5 42

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Abstract

The invention relates to the technical field of new materials, in particular to a preparation method of collagenous fibers, the collagenous fibers and application, the preparation method of the collagenous fibers comprises the following steps: (1) preparing a spinning solution, soaking a glue raw material in a dissolving solution with the pH value of 3.5-5.5 for dissolving, and then adjusting the pH value to 9.9-12.5 to form the spinning solution; (2) preparation of nascent fibers: putting the spinning solution into a coagulating bath with the pH value of 4.4-6.8, and carrying out coagulating spinning to form the nascent fibers; according to the method, a collagen salting-out environment is formed through multiple times of pH adjustment, and the collagenous fiber with spinnability is prepared through wet spinning.

Description

technical field [0001] The application relates to the technical field of new materials, more specifically, it relates to a preparation method of collagen fibers, collagen fibers and applications. Background technique [0002] Collagen is a kind of protein, composed of α-amino acids, mainly found in animal skin, bones, teeth, tendons, ligaments and blood vessels, and is an important constituent and functional substance of connective tissue. [0003] The molecular diameter of procollagen, the basic structural unit of collagen, is about 115nm, the length is about 280-300nm, and the relative molecular weight is about 30kDa. Collagen is a three-strand superhelical structure consisting of three α-chain polypeptides, and each collagen chain is in a left-handed helical configuration. The three polypeptide chains interlock each other with hydrogen bonds to form a very stable right-handed helical structure. The unique rod-like helical structure of collagen and the interaction forces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F4/00
CPCD01F4/00D01D5/06D01D1/02D10B2211/06
Inventor 戚宇峰何文广张怀沧
Owner ZHEJIANG HEURISTIC NEW MATERIAL TECH LLC
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