A kind of preparation method of multi-amino modified nano-zinc oxide loaded polyamide fiber

A nano-zinc oxide, polyamide fiber technology, applied in the direction of single-component polyamide rayon, fiber chemical characteristics, rayon manufacturing, etc., can solve the problem of low surface activity of polyamide fibers, affecting fiber spinning performance, and finishing Poor fastness and other problems, to fill the gap in the preparation technology, the performance does not change color, the performance is stable

Active Publication Date: 2022-03-18
NANTONG UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low surface activity of polyamide fiber, the finishing fastness is poor, and it is easy to fall off after contacting human sweat and has poor durability.
The blend spinning method has good fastness, but there is a problem that it is difficult to disperse during the spinning process, and adding too much will affect the spinning performance of the fiber
Chinese patent CN 107142551A reports a reaction of aminated nano-zinc oxide particles and a bifunctional modifier to prepare nano-zinc oxide particles, but the problem is that the function is single, the amount of zinc oxide used is 5wt%, and the production cost is high

Method used

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  • A kind of preparation method of multi-amino modified nano-zinc oxide loaded polyamide fiber
  • A kind of preparation method of multi-amino modified nano-zinc oxide loaded polyamide fiber
  • A kind of preparation method of multi-amino modified nano-zinc oxide loaded polyamide fiber

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Experimental program
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Effect test

Embodiment 1

[0025] see Figure 1-3 A polyamino modified nano-zinc oxide-loaded antibacterial and anti-aging polyamide fiber comprises a polyamide matrix in which polyamino-ammonia nano-zinc oxide antibacterial powder is dispersed. The size of the nanometer zinc oxide powder is 20-200nm. The mass ratio of the nano zinc oxide antibacterial powder antibacterial powder to the polyamide matrix is ​​1:200.

[0026] Its preparation method comprises the following steps:

[0027] A. Prepare 100ml of 0.1M zinc nitrate solution, add hyperbranched polyether to make the concentration 4g / L, add dropwise 0.1mol / L sodium hydroxide solution to produce white turbid precipitate, centrifuge at 400rpm, and bake at 100°C dry reserve;

[0028] B, 0.01mol diethylenetriamine in a 20ml three-necked flask, cooled in an ice-water bath, under N 2 Under protection, dropwise add a mixed solution of 0.004m1 phthalic anhydride and 20m1 methanol with a constant pressure funnel at 2ml / min, and react for 4h to obtain AB...

Embodiment 2

[0034] An amino-modified nanometer-like mutual trust-loaded nano-silver antibacterial and anti-ultraviolet polyamide fiber includes a polyamide matrix (polycaprolactam), and aminated nano-zinc oxide antibacterial powder is dispersed in the polyamide matrix. The size of the nano-zinc oxide antibacterial and anti-ultraviolet powder is 20-400 nm; the mass ratio of the nano-zinc oxide anti-bacterial and anti-ultraviolet powder to the polyamide matrix is ​​1:100.

[0035] Its preparation method comprises the following steps:

[0036] A, prepare 100ml of 0.2M zinc chloride solution, add hyperbranched polyether to make its concentration 6g / L. Ammonia solution was added dropwise to produce a white turbid precipitate, centrifuged at 400rpm, and dried at 100°C for later use;

[0037] B, 0.01mol triethylenetetramine 20ml three-necked flask, cooled by ice-water bath, under N 2 Under protection, dropwise add a mixed solution of 0.01m1 methyl acrylate and 20m1 methanol with a constant pre...

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Abstract

The invention discloses a preparation method of multi-amino modified nano-zinc oxide loaded polyamide fiber, which comprises a polyamide matrix in which amino nano-zinc oxide powder is dispersed. The preparation method includes: preparing nano-zinc oxide antibacterial powder; adding the raw materials including the above-mentioned zinc oxide antibacterial powder and polyamide reactive monomer into a polyamide reactor for in-situ polymerization to prepare amino nano-zinc oxide composite material, drying, Finally, the antibacterial polyamide fiber loaded with nano zinc oxide is spun by melt spinning. The method of the invention is simple in operation, high in efficiency, low in zinc oxide dosage, durable in effect and broad in application prospect.

Description

technical field [0001] The invention relates to the technical field of functional textiles, in particular to a preparation method of polyamide modified nano zinc oxide loaded polyamide fibers. Background technique [0002] Polyamide (PA) fiber is the earliest industrialized synthetic fiber, and its basic composition is aliphatic polyamide linked by amide bonds—[NHCO]—. PA fiber is currently widely used in protective clothing materials due to its outstanding flexibility, elastic recovery rate, abrasion resistance, alkali resistance, corrosion resistance, hygroscopicity and light weight. The inner layer materials of protective clothing such as army training uniforms and firefighting clothing are not easy or easy to clean due to the harsh working environment during the wearing time, and are required to have antibacterial and anti-ultraviolet requirements. Conventional polyamide fibers do not have this functionality and require functional finishing. [0003] The main method fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/90D01F1/10
CPCD01F6/90D01F1/103D01F1/106
Inventor 张广宇张伟刘蓉龚剑兵
Owner NANTONG UNIVERSITY
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