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Novel uvioresistant fiber and preparation method thereof

An anti-ultraviolet and fiber technology, which is applied in the direction of artificial filaments made of cellulose derivatives, can solve the problems of weak human body protection, poor long-lasting anti-ultraviolet effect, insufficient anti-ultraviolet performance, etc., and achieve outstanding anti-ultraviolet performance , Excellent anti-ultraviolet absorption performance, excellent antibacterial effect

Active Publication Date: 2020-06-05
向自嫒
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a novel anti-ultraviolet fiber and a preparation method thereof, aiming at the defects that the anti-ultraviolet performance of the cotton fiber in the prior art is insufficient to human body protection, and the existing anti-ultraviolet lasting effect is not good. Using apigenin, primary amine derivatives, paraformaldehyde, 2,4-dihydroxybenzophenone derivatives, acid anhydrides and cellulose as raw materials, a new kind of novel compound was obtained through multi-step reactions such as Mannich reaction and esterification. The anti-ultraviolet fiber material not only has high-efficiency anti-ultraviolet properties, but also has high-efficiency antibacterial properties and significantly improved mechanical properties. It is foreseeable that this material will usher in a broad market space, especially for outdoor fields such as clothing fabrics.

Method used

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  • Novel uvioresistant fiber and preparation method thereof
  • Novel uvioresistant fiber and preparation method thereof
  • Novel uvioresistant fiber and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Step (1) Add 1mol apigenin (A), 2.4mol ethanolamine (B), and 2.4mol paraformaldehyde into 50mol dimethyl sulfoxide, heat to 110°C and stir for 4h, let stand, distill under reduced pressure, and distill the concentrate Dissolve in ethyl acetate, after cooling, add 1N sodium hydroxide aqueous solution to wash 3 times, deionized water wash 3 times, stand for layering, separate liquids, take the organic phase and dry it with anhydrous sodium sulfate, filter, and rotary evaporate , dried in vacuo to give intermediate product I (IR: 3440cm -1 : -OH exists; 1630cm -1 :-C=C-exists; 1580cm -1 、1470cm-1 、1440cm -1 : benzene ring exists; 1148cm -1 :-C-N-generate).

[0041] Step (2) Add 1mol I, 2.4mol 2,4-dihydroxybenzophenone (C), and 2.4mol paraformaldehyde into 50mol dimethyl sulfoxide, heat to 110°C, stir vigorously for 8h, and let stand. Distill under reduced pressure, dissolve the concentrate in ethyl acetate, after cooling, add 1N sodium hydroxide aqueous solution to wa...

specific Embodiment 2-6

[0046] Specific embodiment 2-6, other are with specific embodiment 1, difference is following table:

[0047]

[0048]

[0049] Using the anti-ultraviolet cellulose obtained in Example 1 as the basic material of the application example, it was made into anti-ultraviolet cotton fiber.

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PUM

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Abstract

The invention belongs to the field of new materials. The invention relates to a novel uvioresistant fiber and a preparation method thereof. The method comprises the steps of with apigenin, a primary amine derivative, paraformaldehyde, a 2,4-dihydroxy benzophenone derivative, anhydride and cellulose serve as raw materials, carrying out a series reaction including Mannich reaction, esterification and the like to obtain a novel uvioresistant fiber material. The novel uvioresistant fiber material not only effectively solves the problem of insufficient uvioresistant capability or poor uvioresistantlasting effect of the existing cotton fiber, but also has efficient antibacterial property; the mechanical property is remarkably improved, and foreseeability shows that the novel uvioresistant fibermaterial can meet wide market space, and is particularly suitable for outdoor fields such as clothing fabrics and the like.

Description

technical field [0001] The invention relates to a novel anti-ultraviolet fiber and a preparation method thereof. The invention belongs to the field of new materials. Background technique [0002] Cotton fiber has the advantages of good air permeability, soft hand feeling, excellent hygroscopicity, renewable and biodegradability, so it has become the most consumed natural fiber. However, there are also some problems in the use of cotton textiles. Conventional cotton textiles have relatively poor anti-ultraviolet properties and cannot effectively protect human skin. The ultraviolet radiation of sunlight can also cause sunburn on human skin, produce spots and melanin, and may even induce cancer, which poses a serious threat to human health. At the same time, cotton fiber is a kind of hydrophilic porous fiber, and the humid environment after moisture absorption provides abundant moisture and suitable temperature for the growth and reproduction of bacteria. [0003] In additi...

Claims

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Application Information

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IPC IPC(8): C08B15/06D01F2/24
CPCC08B15/06D01F2/24
Inventor 向自嫒
Owner 向自嫒
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