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A kind of antibacterial composite polyvinyl alcohol fiber and its preparation method and application

A polyvinyl alcohol fiber, polyvinyl alcohol technology, applied in the direction of fiber treatment, fiber type, fiber chemical characteristics, etc., can solve problems such as poor antibacterial performance, and achieve the effect of improving antibacterial performance and good antibacterial performance

Active Publication Date: 2022-05-13
SHENZHEN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application only simply mixed polymers, natural antibacterial agents, and silver nitrate to form a spinning solution to prepare fibers and then form non-woven fabrics, which have poor antibacterial properties.

Method used

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  • A kind of antibacterial composite polyvinyl alcohol fiber and its preparation method and application
  • A kind of antibacterial composite polyvinyl alcohol fiber and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation method of a kind of antibacterial composite polyvinyl alcohol fiber as the embodiment of the present invention, described method comprises the following steps:

[0033] (1) tea polyphenols, silver nitrate and lithium chloride solution are mixed to obtain mixed solution A, the mass concentration of silver nitrate in described mixed solution A is 1.5%, the mass concentration of tea polyphenols is 3.0%, the mass concentration of lithium chloride The mass concentration is 0.3%;

[0034] (2) dissolving polyvinyl alcohol in mixed solution A to obtain mixed solution B, and stirring at 90° C. for 3 hours, the weight ratio of the polyvinyl alcohol to the mixed solution A being 12:100;

[0035] (3) add graphene to mixed solution B and leave standstill 8 hours after dispersing uniformly; The weight ratio of described graphene and described mixed solution A is 0.1:100;

[0036] (4) Spinning the mixed liquid obtained in step (3) and irradiating it with ultraviolet l...

Embodiment 2

[0038] The preparation method of a kind of antibacterial composite polyvinyl alcohol fiber as the embodiment of the present invention, described method comprises the following steps:

[0039] (1) tea polyphenols, silver nitrate and lithium chloride solution are mixed to obtain mixed solution A, the mass concentration of silver nitrate in described mixed solution A is 0.5%, the mass concentration of tea polyphenols is 3.0%, the mass concentration of lithium chloride The mass concentration is 0.3%;

[0040] (2) dissolving polyvinyl alcohol in mixed solution A to obtain mixed solution B, and stirring at 90° C. for 3 hours, the weight ratio of the polyvinyl alcohol to the mixed solution A being 12:100;

[0041] (3) add graphene to mixed solution B and leave standstill 8 hours after dispersing uniformly; The weight ratio of described graphene and described mixed solution A is 0.1:100;

[0042] (4) Spinning the mixed liquid obtained in step (3) and irradiating it with ultraviolet l...

Embodiment 3

[0044] The preparation method of a kind of antibacterial composite polyvinyl alcohol fiber as the embodiment of the present invention, described method comprises the following steps:

[0045] (1) tea polyphenols, silver nitrate and lithium chloride solution are mixed to obtain mixed solution A, the mass concentration of silver nitrate in described mixed solution A is 1%, the mass concentration of tea polyphenols is 3.0%, the mass concentration of lithium chloride The mass concentration is 0.3%;

[0046] (2) dissolving polyvinyl alcohol in mixed solution A to obtain mixed solution B, and stirring at 90° C. for 3 hours, the weight ratio of the polyvinyl alcohol to the mixed solution A being 12:100;

[0047] (3) add graphene to mixed solution B and leave standstill 8 hours after dispersing uniformly; The weight ratio of described graphene and described mixed solution A is 0.1:100;

[0048] (4) Spinning the mixed liquid obtained in step (3) and irradiating it with ultraviolet lig...

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Abstract

The invention provides a preparation method of antibacterial composite polyvinyl alcohol fiber, comprising the following steps: (1) Mixing tea polyphenols and silver nitrate solution to obtain mixed solution A, the mass concentration of silver nitrate is 0.5% to 3%, tea The mass concentration of polyphenols is 2.5% to 4.0%; (2) dissolving polyvinyl alcohol in the mixed solution A, and stirring at 80 to 100°C for 3 to 5 hours, the polyvinyl alcohol and the mixed solution A The weight ratio is 5~15:100; (3) add graphene and disperse evenly and let it stand still; (4) spin the mixed solution obtained in step (3) and irradiate it under ultraviolet light to obtain antibacterial composite polyvinyl alcohol fiber. In the method of the present invention, the mixed solution of polyvinyl alcohol, tea polyphenols, silver nitrate and lithium chloride is stirred at 80-100° C. for 3-5 hours, then graphene is added to stand still and then spun, and irradiated under ultraviolet light, The antibacterial performance of the antibacterial composite polyvinyl alcohol fiber is improved, and the antibacterial performance of the nonwoven fabric prepared by using the antibacterial composite polyvinyl alcohol fiber is better.

Description

technical field [0001] The invention relates to the field of antibacterial fiber materials, in particular to an antibacterial composite polyvinyl alcohol fiber and its preparation method and application. Background technique [0002] The non-woven fabrics used in sanitary products were originally produced by polypropylene, polyester, etc. During production, the temperature requirements were relatively strict, the operation was difficult, and the overall hardness was relatively large. Later, ES fibers were used to produce non-woven fabrics, which have bulkiness, softness, High strength, oil absorption, water absorption and other characteristics, can be used in masks, diapers, sanitary napkins and other disposable hygiene products, but the performance is limited, not antibacterial. [0003] The invention application with the application number 201911020794.7 discloses a method for preparing high-performance non-woven fabrics, which includes the following steps: Step 1, dissolv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/50D01F1/10D06M10/00D06M101/24
CPCD01F6/50D01F1/103D06M10/001D06M2101/24
Inventor 苏璐赖嘉敏张珝崔淑芬冼依雯陈洁瑜彭龙吟
Owner SHENZHEN POLYTECHNIC