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Self-cleaning antibacterial non-woven fabric and preparation method thereof

A non-woven fabric, self-cleaning technology, applied in textiles and papermaking, biochemical fiber treatment, fiber type, etc., can solve the problem of non-active groups on the surface of polypropylene non-woven fabrics, and achieve excellent antibacterial properties

Inactive Publication Date: 2021-04-09
临泉县圣茂纺织品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, by combining chitosan and titanium dioxide with polypropylene non-woven fabrics, it is of great significance to comprehensively utilize the film-forming antibacterial properties of chitosan and the self-cleaning function of titanium dioxide. However, there is currently no method to demonstrate the effective loading of chitosan and titanium dioxide on polypropylene nonwovens

Method used

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  • Self-cleaning antibacterial non-woven fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of self-cleaning antibacterial non-woven fabric, its preparation method comprises the steps:

[0023] S1, the polypropylene non-woven fabric (30g / m 2 ) was cut into a size of 10cm×5cm, ultrasonically treated in ethanol for 30min to remove surface dust, rinsed repeatedly with deionized water and then dried for later use; adding dopamine hydrochloride into Tris buffer (pH=8.5) and stirring Dissolve, be configured into the solution that concentration is 30mmol / L, then add ammonium persulfate and ethylenediamine equimolar with dopamine hydrochloride, obtain dopamine solution; With above-mentioned polypropylene nonwoven fabric according to bath ratio (g / mL) 1: 40 soaked in the above-mentioned dopamine solution, shaken and reacted in a constant temperature water bath shaker at 25°C for 2 hours, then took it out, rinsed with deionized water, and dried to obtain a non-woven fabric with a polydopamine layer adhered to the surface;

[0024] S2, chitosan (deacetylation deg...

Embodiment 2

[0027] A kind of self-cleaning antibacterial non-woven fabric, its preparation method comprises the steps:

[0028] S1, the polypropylene non-woven fabric (30g / m 2 ) was cut into a size of 10cm×5cm, ultrasonically treated in ethanol for 30min to remove surface dust, rinsed repeatedly with deionized water and then dried for later use; adding dopamine hydrochloride into Tris buffer (pH=8.5) and stirring Dissolve and configure a solution with a concentration of 30mmol / L, then add ammonium persulfate with 2 times the molar quantity of dopamine hydrochloride and ethylenediamine with 3 times the molar quantity of dopamine hydrochloride to obtain a dopamine solution; (g / mL) 1:40 Soak in the above dopamine solution, shake and react in a constant temperature water bath shaker at 25°C for 1 hour, take it out, rinse with deionized water, and dry to obtain a non-woven fabric with a polydopamine layer adhered to the surface;

[0029] S2, chitosan (deacetylation degree ≥ 80%) is added in t...

Embodiment 3

[0032] A kind of self-cleaning antibacterial non-woven fabric, its preparation method comprises the steps:

[0033] S1, the polypropylene non-woven fabric (30g / m 2 ) was cut into a size of 10cm×5cm, ultrasonically treated in ethanol for 30min to remove surface dust, rinsed repeatedly with deionized water and then dried for later use; adding dopamine hydrochloride into Tris buffer (pH=8.5) and stirring Dissolve and configure a solution with a concentration of 30mmol / L, then add ammonium persulfate of 3 times the molar amount of dopamine hydrochloride and ethylenediamine of 4 times the molar amount of dopamine hydrochloride to obtain a dopamine solution; (g / mL) 1:40 soaked in the above-mentioned dopamine solution, shaken and reacted in a constant temperature water bath shaker at 25°C for 3 hours, took it out, rinsed with deionized water, and dried to obtain a non-woven fabric with a polydopamine layer adhered to the surface;

[0034] S2, chitosan (deacetylation degree ≥ 80%) is...

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Abstract

The invention provides a self-cleaning antibacterial non-woven fabric and a preparation method thereof. The non-woven fabric comprises a polypropylene non-woven fabric base material, chitosan and nano titanium dioxide, wherein the chitosan and the nano titanium dioxide are grafted on the surface of the polypropylene non-woven fabric base material. According to the self-cleaning antibacterial non-woven fabric and the preparation method thereof provided by the invention, chitosan and nano titanium dioxide are effectively grafted on the polypropylene non-woven fabric, and chitosan is used as an antibacterial film-forming agent and titanium dioxide is used as a photocatalyst, so that the self-cleaning and antibacterial properties of the polypropylene non-woven fabric are improved.

Description

technical field [0001] The invention relates to the technical field of functional nonwoven fabrics, in particular to a self-cleaning antibacterial nonwoven fabric and a preparation method thereof. Background technique [0002] Polypropylene (PP) nonwoven fabrics are widely used in many fields due to their excellent mechanical strength and physical and chemical stability. However, because there are only regularly arranged methyl groups in its molecular structure, lacking more functional groups and polar groups, it is easy to cause the adhesion of bacteria, proteins and other substances, so polypropylene non-woven fabrics have insufficient aging resistance, Defects such as poor antibacterial ability. [0003] Chitosan is widely used in biomedicine, water treatment, textile industry, agriculture, and storage of fruits and vegetables because of its good hydrophilicity, film-forming properties, ability to inhibit microbial growth and reproduction, degradability, edible, and no a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/03D06M11/46D06M15/37D06M101/20
CPCD06M11/46D06M15/03D06M15/37D06M16/00D06M2101/20
Inventor 郭东东
Owner 临泉县圣茂纺织品有限公司
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