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A kind of preparation method of catechin-cuii/polyvinylpyrrolidone composite fiber

A polyvinylpyrrolidone and composite fiber technology, applied in fiber processing, fiber chemical characteristics, single-component synthetic polymer rayon, etc., to achieve good surface smoothness and toughness, broad application prospects, and reduce pollution.

Active Publication Date: 2016-04-27
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of fibers with PVP as a matrix material is rarely reported

Method used

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  • A kind of preparation method of catechin-cuii/polyvinylpyrrolidone composite fiber
  • A kind of preparation method of catechin-cuii/polyvinylpyrrolidone composite fiber
  • A kind of preparation method of catechin-cuii/polyvinylpyrrolidone composite fiber

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Experimental program
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Effect test

Embodiment 1

[0022] Preparation of composite fibers:

[0023] (1) figure 1 Prepare catechin-Cu for the present invention Ⅱ / PVP composite fiber device diagram, PVP and ethanol are mixed according to the volume ratio of 1:9, magnetically stirred for 3-5min, and then 0.023g / ml catechin and 0.2g / ml Cu Ⅱ Dispersed in the PVP solution to obtain the precursor solution, the prepared catechin-Cu Ⅱ / PVP precursor solution 2 is added to the injector 3 (a plastic tube with a 0.9mm needle), and then an electrode connected to the positive high voltage of the power supply is clamped to the needle 4, and an aluminum foil receiver is installed 16cm in front of the plastic tube (Device) plate 3, the negative electrode is clamped to the aluminum plate, so that an electric field (16kv) is formed between the nozzle and the receiving plate, and the catechin-Cu ejected from the nozzle Ⅱ / PVP charged precursor solution is under the action of electric field force, the fiber filaments fall to the receiving plat...

Embodiment 2

[0027] Infrared Spectrum Analysis of Composite Fibers:

[0028] The formation of the gel precursor was studied by using the Nexu470 Fourier transform infrared spectrometer FT-IR of the American Nicolet company. see results image 3 .

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Abstract

The invention discloses a preparation method for a catechinic acid-CuII / polyvinylpyrrolidone (PVP) composite fiber and belongs to the technical field of catechinic acid modified nano fiber materials. The preparation process adopts an electrostatic spinning method and takes absolute ethyl alcohol as a solvent; the catechinic acid-CuII / polyvinylpyrrolidone composite fiber is prepared by compounding polyvinylpyrrolidone (k-90), catechinic acid and CuII. The preparation method is simple to operate and raw materials are cheap and are easily available; the prepared catechinic acid-CuII / PVP composite fiber has antibacterial, anti-oxidizing and fresh-keeping functions and has a wide application prospect in the fields of fresh keeping and packaging of foods and industries.

Description

technical field [0001] The present invention relates to a kind of catechin-Cu Ⅱ The invention discloses a method for preparing polyvinylpyrrolidone composite fibers, which belongs to the field of preparing catechin-modified nanofiber materials. Background technique [0002] Catechin mainly contains EGC, EGCG, ECG and other monomers. It is a natural polymer component extracted from green tea. In recent years, a large number of scientific studies have shown that catechin has various functions, especially in antibacterial and antibacterial. It plays a very important role in anti-oxidation. However, due to the shortcomings of catechin, such as instability, easy oxidative denaturation, poor water solubility, and unsatisfactory metabolism time in vivo, its application and development in various fields are limited. In recent years, some scholars have found that metal particles are easy to complex with monomers in catechins, which can protect catechins and prevent them from being ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/56D01F1/10D01D5/00
Inventor 陈全胜李欢欢赵杰文欧阳琴
Owner JIANGSU UNIV
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