Preparation method of composite anti-bacterial fiber membrane

A composite antibacterial and fiber membrane technology, which is applied in fiber treatment, plant fiber, cellulose/protein conjugated artificial filament, etc., can solve problems such as limited application, limited application of antibacterial fiber membrane, and structural damage of fiber membrane, and achieves Overcoming poor mechanical strength and toughness, excellent antibacterial and antifouling properties, and improving mechanical properties and toughness

Inactive Publication Date: 2018-08-10

PINGHU YIFANJIA LUGGAGE CO LTD

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AI-Extracted Technical Summary

Problems solved by technology

[0003] The silver-loaded nanoparticle/composite fiber membrane prepared by the prior art has poor biocompatibility, and by-products are produced during the preparation process, causing the structure of the fiber membrane to be destroyed, which limits the application of the antibact...

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Abstract

The invention discloses a preparation method of a composite anti-bacterial fiber membrane, and belongs to the field of functional textile materials. A polyacrylonitrile anti-bacterial nano-fiber membrane with efficient anti-bacterial performance is prepared by adding an anti-bacterial agent into polyacrylonitrile and cuprammonia regenerated cellulose through an electrospinning technology. The anti-bacterial agent in the fiber membrane is prepared by polymerizing 2-methyl-2-crylic acid-1,2-propylene glycol, dimethylaminoethyl methacrylate, allyltriethoxysilane, hectorite and nano titanium oxide. The preparation method comprises the following steps: adding the anti-bacterial agent, nano-silver, copper-zeolite molecular sieve micro powder and nano zinc oxide sol into a mixed solution of the polyacrylonitrile and the cuprammonia regenerated cellulose, and uniformly mixing the materials; performing electrostatic spinning to obtain a fiber membrane; soaking the fiber membrane into a brominechloride solution; taking the fiber membrane out and drying to obtain the composite anti-bacterial fiber membrane. The anti-bacterial nano-fiber membrane can be applied to the fields of daily use, textile, industry and medicine.

Application Domain

Conjugated cellulose/protein artificial filamentsElectro-spinning +6

Technology Topic

Molecular sieveChemistry +17

Examples

Experimental program(2)

Example Embodiment

[0017] Example 1

[0018] The preparation method of a composite antibacterial fiber membrane proposed by the present invention comprises the following steps:

[0019] S1. Prepare a mixed solution of high molecular polymer: dissolve 110 parts of polyacrylonitrile in a mixed solvent of dimethylacetamide and acetone, then add 70 parts of cuprammonium regenerated cellulose into the above solution, and magnetically at 40°C Stir for 12h to fully dissolve the solution to obtain a mixed solution, wherein the volume ratio of dimethylacetamide and acetone is 3:7;

[0020] S2. Preparation of antibacterial agent: the antibacterial agent is composed of 2-methyl-2-acrylic acid-1,2-propanediol, dimethylaminoethyl methacrylate, allyl triethoxysilane, hectorite, nano- Titanium oxide is polymerized; its preparation process is as follows: adding 25 parts of 20% mass fraction of 2-methyl-2-acrylic acid-1,2-propanediol aqueous solution to 15 parts of 15% mass fraction of methacrylic acid dimethacrylate The methylaminoethyl ester aqueous solution is stirred and mixed evenly at 80-150rmp, then 15 parts of allyltriethoxysilane, 20 parts of hectorite and 10 parts of nano-titanium oxide are added, and the reaction is heated in a hot water bath for 24 hours. the antibacterial agent;

[0021] S3. Preparation of composite antibacterial fiber membrane: 30 parts of antibacterial agent, 20 parts of nano-silver, 10 parts of copper-zeolite molecular sieve powder, 20 parts of nano-zinc oxide sol, and 3 parts of antioxidant are added to the mixed solution of step S2. Mix well under stirring at 300 rpm, then inject it into a 5 ml syringe, and use a No. 5 stainless steel needle to obtain a composite fiber membrane by electrospinning; the electrospinning process parameters are: the DC high voltage power supply is 15kV, the spinning distance is 10cm, and the spinning solution is The flow rate is 0.5mL/h; the temperature is 30℃, and the relative humidity is 35%;

[0022] S4. Soak the above composite fiber membrane in a bromine chloride solution at 60°C, take it out, vacuum dry at room temperature for 24 hours, remove residual solvent, and store in a drying oven at 10°C.

Example Embodiment

[0023] Example 2

[0024] The preparation method of a composite antibacterial fiber membrane proposed by the present invention comprises the following steps:

[0025] S1. Prepare a mixed solution of high molecular polymers: Dissolve 130 parts of polyacrylonitrile in a mixed solvent of dimethylacetamide and acetone, then add 50 cupro ammonia regenerated cellulose into the above solution, and stir magnetically at 40°C The solution was fully dissolved in 12h to obtain a mixed solution, wherein the volume ratio of dimethylacetamide and acetone was 3:7;

[0026] S2. Preparation of antibacterial agent: the antibacterial agent is composed of 2-methyl-2-acrylic acid-1,2-propanediol, dimethylaminoethyl methacrylate, allyl triethoxysilane, hectorite, nano- Titanium oxide is polymerized; its preparation process is as follows: 40 parts of 2-methyl-2-acrylic acid-1,2-propanediol aqueous solution with a mass fraction of 20% are added to 20 parts of methacrylic acid dimethacrylate with a mass fraction of 15% The methylaminoethyl ester aqueous solution was stirred and mixed evenly at 80-150 rmp, then 25 parts of allyltriethoxysilane, 30 parts of hectorite and 15 parts of nano-titanium oxide were added, and the reaction was carried out under heating in a hot water bath for 24 hours. the antibacterial agent;

[0027] S3. Preparation of composite antibacterial fiber membrane: 40 parts of antibacterial agent, 20 parts of nano-silver, 10 parts of copper-zeolite molecular sieve powder, 30 parts of nano-zinc oxide sol, and 5 parts of antioxidant are added to the mixed solution of step S2, and at 100~ Mix well under stirring at 300 rpm, then inject into a 5 ml syringe, and use a No. 5 stainless steel needle to obtain a composite fiber membrane by electrospinning; the electrospinning process parameters are: DC high voltage power supply is 25kV, spinning distance is 30cm, and the spinning solution is The flow rate is 2mL/h; the temperature is 30℃, and the relative humidity is 35%;

[0028] S4. Soak the above composite fiber membrane in a bromine chloride solution at 60°C, take it out, vacuum dry at room temperature for 24 hours, remove residual solvent, and store in a drying oven at 10°C.

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Description & Claims & Application Information

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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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Classification and recommendation of technical efficacy words

Excellent antibacterial and antifouling properties
Improves mechanical properties and toughness

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InactiveCN105274843AExcellent antibacterial and antifouling propertiesFibre treatmentCitric acidHydroxyethyl cellulose

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InactiveCN105256582AExcellent antibacterial and antifouling propertiesFibre treatmentIonChemistry

Owner:常熟市凯旋经编织造有限公司

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Uniform pore size High porosity Regenerated cellulose Titanium oxide Copper Methacrylic acid Mixed solution Polymer science Liquid/gas/vapor removal Conjugated synthetic polymer artificial filaments Non-woven fabrics Vegetal fibres Liquid/gas/vapor textile treatment Artifical filament manufacture

Preparation method of composite anti-bacterial fiber membrane

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Examples

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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