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Highly water-absorbing antibacterial fiber

A technology of water absorption and fiber, applied in the chemical post-treatment of synthetic polymer rayon filament, single-component polyamide rayon filament, single-component copolyamide rayon filament, etc., can solve problems such as inapplicability, achieve Good water absorption, good antibacterial effect

Inactive Publication Date: 2015-04-15
FAR EASTERN NEW CENTURY COPRRATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above method is not applicable to every fiber material, nor is it applicable to the high water absorption polyglutamic acid fiber disclosed in the aforementioned Chinese invention patent application No. 200910137040.X

Method used

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  • Highly water-absorbing antibacterial fiber
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  • Highly water-absorbing antibacterial fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Soak the polyglutamic acid fiber in 0.3wt% sodium hypochlorite aqueous solution, adjust the pH value between 6-8 with 0.5N phosphoric acid aqueous solution, take it out after soaking for 1 minute. Rinse the fiber with secondary water, let it stand to dry, and then use X-ray energy dispersive analyzer (EDS) to detect the increase ratio of chloride ions before and after soaking, so as to measure the difference between the modified polyglutamic acid segment and the unmodified polyglutamic acid segment. The content ratio of the modified polyglutamic acid segment.

Embodiment 2

[0039] Soak the polyglutamic acid fiber in 0.16wt% sodium hypochlorite aqueous solution, adjust the pH value between 6-8 with 0.5N phosphoric acid aqueous solution, take it out after soaking for 4 minutes. Rinse the fiber with secondary water, let it stand until it dries, and then use an X-ray energy dispersive analyzer (EDS) to detect the increase ratio of chloride ions before and after soaking to measure the modified polyglutamic acid chain segment and The content ratio of unmodified polyglutamic acid segment.

Embodiment 3

[0041] Soak the polyglutamic acid fiber in 0.078wt% sodium hypochlorite aqueous solution, adjust the pH value between 6-8 with 0.5N phosphoric acid aqueous solution, take it out after soaking for 7 minutes. Rinse the fiber with secondary water, let it stand to dry, and then use X-ray energy dispersive analyzer (EDS) to detect the increase ratio of chloride ions before and after soaking, so as to measure the difference between the modified polyglutamic acid segment and the unmodified polyglutamic acid segment. The content ratio of the modified polyglutamic acid segment.

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Abstract

The invention relates to a polyglutamic acid fiber with antibacterial property and high water absorption. The main ingredients of the polyglutamic acid fiber comprise modified polyglutamic acid which is a polymer formed from a glutamic acid chain segment and a modified glutamic acid chain segment, wherein the modified glutamic acid chain segment has the chemical structure formula shown by the following formula (I), wherein X is H or Na, Y is Cl, Br or I; and the molar ratio of the modified glutamic acid chain segment to the glutamic acid chain segment is not less than 0.05.

Description

technical field [0001] The present invention relates to a high water-absorbing fiber, in particular to a polyglutamic acid fiber having both antibacterial and high water-absorbing properties. Background technique [0002] High water-absorbent materials have a wide range of applications because they have the ability to absorb water and retain water with a mass of tens to hundreds of times their own mass after absorbing water. Commonly used superabsorbent materials known in the art can be mainly divided into two categories, one of which is mainly carbohydrates, such as starch, chitosan, sodium alginate and carboxymethyl cellulose (Carboxymethyl cellulose, CMC) Such polysaccharides, which are natural materials, have good biodegradability, but their applicability is limited due to their low water absorption rate (usually not more than 10 times). The other type is chemically synthesized polymers, such as polyester materials such as acrylate or vinyl alcohol. Compared with the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/80D01F6/60D01F11/08
Inventor 黄若暐李俊谊范姜美婷
Owner FAR EASTERN NEW CENTURY COPRRATION
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