Method for preparing high-strength alginic acid/gelatin cross-blend fiber and its use

A technology of gelatin blended fiber and alginic acid, which is applied in the field of polymer chemical materials, and can solve the problems of unsatisfactory elasticity and strength of alginic acid fiber

Active Publication Date: 2007-06-13
青岛海赛尔新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the shortcomings of alginate fibers that are not ideal in elasticity and strength, and is a simple and effective method for improving the performance of polymer materials through blending and modification. Good gelatin blending, preparing a high-strength alginic acid / gelatin blended fiber, to improve the physical and mechanical properties and medical properties of seaweed fiber, improve the added value of the fiber, and provide the high-strength alginic acid / gelatin blended fiber a use of

Method used

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  • Method for preparing high-strength alginic acid/gelatin cross-blend fiber and its use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: Dissolve 30g of sodium alginate powder in 970g of distilled water at room temperature, stir and dissolve to obtain sodium alginate solution; dissolve 30g of gelatin in 470g of distilled water at 50°C, stir and dissolve to obtain gelatin aqueous solution; choose NaOH, triethanolamine or Na 2 HPO 4 Any one of the aqueous solutions in the gelatin aqueous solution is used as an alkali agent to adjust the pH value of the aqueous gelatin solution, and the pH value of the aqueous gelatin solution is adjusted to 8.0, 8.2, 8.25, 8.3, 8.5 or 9.0. The above two solutions are blended, and the aqueous gelatin solution and sodium alginate solution The mixing ratio (volume ratio) can be selected as 10:100, 20:100, 30:100 or 50:100, the blended solution is vigorously stirred to a homogeneous system, and degassing under reduced pressure at 33°C; at 33±1°C Next, the primary fiber is first formed by wet spinning in a metal coagulation bath, the metal coagulation bath can be 2%,...

Embodiment 2

[0023] Example 2: Dissolve 60g of sodium alginate powder in 940g of distilled water at room temperature, stir and dissolve to obtain sodium alginate solution; dissolve 60g of gelatin in 440g of distilled water at 70°C, stir and dissolve to obtain gelatin aqueous solution; choose NaOH, triethanolamine or Na 2 HPO 4 Any one of the aqueous solutions in the gelatin aqueous solution is used as an alkali agent to adjust the pH value of the aqueous gelatin solution, and the pH value of the aqueous gelatin solution is adjusted to 8.0, 8.2, 8.25, 8.3, 8.5 or 9.0. The above two solutions are blended, and the aqueous gelatin solution and sodium alginate solution The mixing ratio (volume ratio) can be selected as 10:100, 20:100, 30:100 or 50:100, the blended solution is vigorously stirred until it becomes a homogeneous system, and degassing under reduced pressure at 33°C; at 33±1 At ℃, first adopt the wet spinning method to form the primary fiber in the metal coagulation bath, the metal c...

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Abstract

The invention discloses high strength alginic acid / gelatin blended fiber manufacturing method and use. The method includes the following steps: making sodium alginate solution with 3-6% mass percent; making gelatin aqueous solution with 6-12% mass percent and 8.0-9.0 pH; mixing them as 10-50:100 volumetric ratio; stirring to homogeneous phase system; decompress; de-bubbling; using wet spinning method to make fiber under 33 degree centigrade of which total draft is 10-30%. The invention makes cross blend spinning fluid be cross linking with Ca2+ divalent metal ion, and makes the fiber under acidity with polyelectrolyte effect which can further increase fiber cross linking level, breaking tenacity to improve fiber physical mechanical properties. Thus it can be used to make non-woven fabrics such as hospital gauze, dressing etc.

Description

technical field [0001] The invention relates to a preparation method and application of a high-strength alginic acid / gelatin blend fiber, which belongs to the field of polymer chemical materials. Background technique [0002] Natural polymers not only endow them with comparable or even better properties than synthetic polymers due to their unique structures, but also often have excellent properties such as non-toxic (low) toxicity, good biological tissue cell compatibility, and biodegradability. Sodium alginate is a class of natural linear polysaccharides extracted from seaweed, composed of 1,4-linked β-D-mannuronic acid (M unit) and α-L-guluronic acid (G unit) , non-toxic, biodegradable and has high biological activity. The seaweed fiber prepared from it is known for its excellent characteristics - (such as) high hygroscopic gelation, overall easy removal, high oxygen permeability, biocompatibility, biodegradable absorption, high ion adsorption and environmentally friendly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/04D01F8/18D01D5/06A61L31/00
Inventor 朱平展义臻王炳董朝红隋淑英
Owner 青岛海赛尔新材料科技有限公司
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