Preparation method of enhanced bacteriostatic and breathable composite fiber electrostatic spinning membrane

A technology of electrospinning and composite fibers, which is applied in fiber types, fiber treatment, rayon manufacturing, etc., can solve the problems of poor membrane hydrophobicity, etc., and achieve the effect of extending the shelf life and improving the freshness preservation effect

Inactive Publication Date: 2019-06-14
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the membrane prepared by this method has the properties of large specific surface area, high porosity, anti-mildew and antibacterial properties, but due to the water solubility of PVA itself, the membrane will have poor hydrophobicity after spinning, and it is difficult to make the membrane in terms of fresh food. to practical application

Method used

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  • Preparation method of enhanced bacteriostatic and breathable composite fiber electrostatic spinning membrane
  • Preparation method of enhanced bacteriostatic and breathable composite fiber electrostatic spinning membrane
  • Preparation method of enhanced bacteriostatic and breathable composite fiber electrostatic spinning membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Weigh 6 parts of polyvinyl alcohol and dissolve it in 100 parts of deionized water at 60°C, stir well to completely dissolve the polyvinyl alcohol until the solution becomes transparent, and make a PVA aqueous solution;

[0027] (2) 4 parts of active antibacterial substances are added in the above-mentioned PVA aqueous solution, and described active antibacterial substances are mixed with cinnamon essential oil, allicin, tea polyphenols and thyme essential oil in a mass ratio of 2:1:0.5:0.4 , then add 0.5 parts of cyclodextrin and 1 part of corn porous starch, after fully mixing and stirring for 5 hours, add 5 parts of sodium trimetaphosphate and boric acid compound for crosslinking, the sodium trimetaphosphate and boric acid compound are made of mass The ratio is 4:5 sodium trimetaphosphate and boric acid are compounded, until the solution becomes uniform, and the spinning solution is obtained;

[0028] (3) The spinning solution is placed on an electrospinning mach...

Embodiment 2

[0032] (1) Weigh 7 parts of polyvinyl alcohol and dissolve it in 100 parts of 70°C deionized water, stir well to completely dissolve the polyvinyl alcohol until the solution becomes transparent, and make a PVA aqueous solution;

[0033] (2) 4 parts of active antibacterial substances are added in the above-mentioned PVA aqueous solution, and described active antibacterial substances are mixed with cinnamon essential oil, allicin, tea polyphenols and thyme essential oil in a mass ratio of 3:2:1.5:1.4 , then add 1 part of cyclodextrin and 2 parts of corn porous starch, after fully mixing and stirring for 6 hours, add 7 parts of sodium trimetaphosphate and boric acid complex for crosslinking, the sodium trimetaphosphate and boric acid compound are made of mass The ratio is 4:5 sodium trimetaphosphate and boric acid are compounded, until the solution becomes uniform, and the spinning solution is obtained;

[0034] (3) Place the spinning solution on an electrospinning machine for sp...

Embodiment 3

[0038] (1) Weigh 8 parts of polyvinyl alcohol and dissolve it in 100 parts of deionized water at 80°C, stir well to completely dissolve the polyvinyl alcohol until the solution becomes transparent, and make a PVA aqueous solution;

[0039] (2) 4 parts of active antibacterial substances are added in the above-mentioned PVA aqueous solution, and described active antibacterial substances are mixed with cinnamon essential oil, allicin, tea polyphenols and thyme essential oil in a mass ratio of 4:3:2.5:2.4 , then add 1.5 parts of cyclodextrin and 3 parts of corn porous starch, after fully mixing and stirring for 8 hours, add 10 parts of sodium trimetaphosphate and boric acid complex for crosslinking, the sodium trimetaphosphate and boric acid compound are made of mass The ratio is 4:5 sodium trimetaphosphate and boric acid are compounded, until the solution becomes uniform, and the spinning solution is obtained;

[0040] (3) The spinning solution is placed on an electrospinning mac...

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Abstract

The invention provides a preparation method of an enhanced bacteriostatic and breathable composite fiber electrostatic spinning membrane. The preparation method includes the following steps that 6-8 parts of polyvinyl alcohol are weighed and dissolved in 100 parts of 60-80 DEG C deionized water, and a PVA water solution is prepared; (2), 4 parts of active bacteriostatic substances are added into the PVC water solution, the active bacteriostatic substances are formed by mixing cinnamon essential oil, allicin, tea polyphenol and thyme essential oil according to the mass ratio of (2-4):(1-3):(0.5-2.5):(0.4-2.4), then 0.5-1.5 parts of cyclodextrin and 1-3 parts of corn porous starch are added, after the materials are fully mixed and stirred for 5-8 hours, 5-10 parts of sodium trimetaphosphateand boric acid complex are added for crosslinking, the sodium trimetaphosphate and boric acid complex is formed by compounding sodium trimetaphosphate and boric acid at the mass ratio of 4:5 until thesolution is uniform, and a spinning solution is obtained; (3), the spinning solution is arranged on an electrostatic spinning machine for spinning, and a spinning membrane is obtained; (4), the spinning membrane is subjected to glutaraldehyde fumigation crosslinking, and after the spinning membrane is dried in the air, the composite fiber electrostatic spinning membrane is obtained.

Description

(1) Technical field [0001] The invention belongs to the field of preservation of edible fungi, and in particular relates to a method for preparing an antibacterial and air-permeable composite fiber electrostatic spinning film. (2) Technical background [0002] The food packaging industry is an important pillar industry in the food industry. With the development of society, the food industry expects food packaging materials to have more functions, such as blocking oxygen and moisture, thermal stability, antibacterial, fresh-keeping, etc. For these shortcomings, the present invention uses electrospinning technology to prepare nanofibers with large specific surface area, high porosity and strong antibacterial performance. [0003] Electrospinning is a simple and easy method that can directly prepare continuous fibers from polymers and composite materials, and the cost of equipment and experiments is low, the fiber yield is high, and the specific surface area of ​​the prepared ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728D04H1/4309D01F6/50D01F1/10D06M13/123D06M101/24
Inventor 邵平艾芳米陈杭君
Owner ZHEJIANG UNIV OF TECH
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