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Antibacterial polylactic acid melt-blown non-woven fabric

A melt-blown non-woven, polylactic acid technology, applied in non-woven fabrics, textiles and papermaking, conjugated synthetic polymer rayon, etc. problems, to achieve the effect of improving crystallization rate and crystallinity, improving processing performance, and improving antibacterial properties

Inactive Publication Date: 2021-04-13
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] At present, polypropylene melt-blown non-woven fabric is used as the isolation filter layer, but polypropylene is not easy to degrade and easy to pollute the environment
Polylactic acid can be biodegradable, but polylactic acid is brittle and hard, not easy for industrial production and processing, and the crystallization rate and crystallinity of polylactic acid are low, resulting in low electret performance and filtration performance, which limits its application in masks

Method used

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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  • Antibacterial polylactic acid melt-blown non-woven fabric
  • Antibacterial polylactic acid melt-blown non-woven fabric

Examples

Experimental program
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Effect test

Embodiment 1

[0021]A antibacterial polylactic acid meltblown nonwoven fabric comprising: polylactic acid 80g, polybutanoicate 20g, phenylphosphate 0.1g, modified montmorillonite 0.4 g, epoxidized corn Oil 5G;

[0022]Among them, in the preparation of modified montmorillonmine, 2.5 g of chitosan was added to a aqueous aqueous aqueous acetic acid in a aqueous acetic acid, and the mixture was stirred at room temperature to dissolve the chitosan solution; add 1G nammond to soil to 100ml Mix mixing in water, static swelling 24 h, then mixed with the chitosan solution, adjusted pH = 4.3 with acetate aqueous sodium acetate, then stirred at 80 ° C for 7 h, filtered, water washing filter cake to give an intermediate material to add concentrations It was stirred at 1 mol / L of a silver nitrate solution, stirred at room temperature for 4 h, filtered, washed with filter cake, and dried under reduced pressure to obtain modified montmorillonite.

Embodiment 2

[0024]A antibacterial polylactic acid meltblown nonwoven fabric comprising: polylactic acid 85g, polybutyl dikaricate 15g, phenylphosphate 0.1g, modified montmorillonite 0.9 g, epoxidized corn Oil 3G;

[0025]Among them, in the preparation of modified montmorillonmine, 3 g of chitosan was added to a aqueous aqueous aqueous solution of 400 ml of mass fraction, stirred at room temperature to dissolve the chitosan solution; 1 g of nammond mandidine was added to 100 ml of water to stir Mixed, static swelling 24 h, then mixed with the chitosan solution, adjusted pH = 4.7 with acetate acetate, then stirred at 70 ° C for 8 h, filtered, water washing cake to obtain an intermediate material; add the concentration of the intermediate material to 0.6 In a silver nitrate solution of Mol / L, it was stirred at room temperature for 5 h, filtered, water washing cake, and dried under reduced pressure to obtain modified montmorillonite.

Embodiment 3

[0027]A antibacterial polylactic acid meltblown nonwoven fabric, a raw material comprising: polylactic acid 82 g, polybutic acid butnectate 18g, phenylphosphate 0.1g, modified montmorillonite 0.7 g, epoxidized corn Oil 4G;

[0028]Among them, in the preparation of modified montmorillonmine, 2.7 g of chitosan was added to aqueous aqueous aqueous aqueous acetic acid, stirred at room temperature to dissolve the chitosan solution; add 1G nammond to soil to 100ml Mix mixing in water, static swelling 24 h, then mixed with the chitosan solution, adjusted pH = 4.5 with acetate acetate, then stirred at 75 ° C, filtered, water washing cake to obtain an intermediate material; In a nitric aqueous solution of 0.8 mol / L, it was stirred at room temperature for 4.5 h, filtered, water washing cake, and dried under reduced pressure to obtain modified montmorillonite.

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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Abstract

The invention discloses an antibacterial polylactic acid melt-blown non-woven fabric. The antibacterial polylactic acid melt-blown non-woven fabric is prepared from the following raw materials in parts by weight: 80-85 parts of polylactic acid, 15-20 parts of polybutylene succinate, 0.5-1 part of a nucleating agent and 3-5 parts of a toughening agent. Through mutual cooperation of all the substances, the toughness and crystallinity of polylactic acid are improved, so that the antibacterial polylactic acid melt-blown non-woven fabric is easy to process and good in filtering performance; and in addition, the antibacterial polylactic acid melt-blown non-woven fabric is easy to degrade, does not pollute the environment and has certain antibacterial performance.

Description

Technical field[0001]The present invention relates to the field of nonwoven fabric, and more particularly to an antibacterial polylactic acid meltblown nonwoven fabric.Background technique[0002]Medical masks are made of one or more nonwoven fabric composite. The main production process includes meltblowing, spunbond, hot air or acupuncture, etc., has an effect of resisting liquid, filtration particulate matter, and bacteria, is a medical protection textile.[0003]The mask of the medical mask is divided into internal, middle, outer layer, the inner layer is a skin-friendly material, and the middle layer is an isolation filter layer, and the outer layer is a special material inhibitory layer. The isolation filter layer in the middle layer of the mask is the core material of the mask, which reaches the resistant liquid, filtered particulate matter, and bacterial effect by mechanical filtration and electrostatic adsorption.[0004]The polypropylene meltblown nonwoven fabric is currently se...

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): D01F8/14D01F1/10D04H1/56D04H1/541
CPCD01F1/10D01F1/103D01F8/14D04H1/541D04H1/56
Inventor 郭东东
Owner 临泉县圣茂纺织品有限公司
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