Preparation method of photosensitive antibacterial fabric

A photosensitive antibacterial and fabric technology, which is applied to plant fibers, textiles, papermaking, fiber types, etc., can solve the problems of high cost, harsh reaction conditions, and complicated reaction routes, and achieve low cost, simple preparation process, and wide application.

Active Publication Date: 2015-01-28
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above method, it is necessary to choose NHS / EDC as a coupling agent for bonding or to properly modify the substrate and photosensitizer in advance, and then carry out chemical bonding between the two, which increases the operation process and most of the changes In the conventional method, it must be carried out in an organic solvent, the reaction conditions are harsh, the reaction route is complicated, and the cost of industrial implementation is high.

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0017] A kind of preparation method of photosensitive antibacterial fabric, described preparation method is carried out according to the following steps:

[0018] A, dopamine is dissolved in the tris-hydrochloric acid buffer solution that pH value is 8~10, obtains dopamine solution, wherein the concentration of dopamine is 1~4g / L;

[0019] B. Soak the fabric in the dopamine solution obtained in step A at a bath ratio of 1:40, at 20-40 o Under the condition of C, take it out after stirring for 1-24 hours, and observe that the color of the fabric changes from white to brown or light black, indicating that the surface of the fabric is self-polymerized and adhered to a polydopamine layer. Wash the fabric with deionized water and absolute ethanol in turn. After air-drying, a fabric with a polydopamine layer attached to the surface is obtained; wherein the fabric is one of cotton, hemp, wool, polyester, nylon, acrylic, spandex, regenerated fiber, or polyester-cotton blended fabric, ...

Embodiment 1

[0022] 0.1g dopamine is dissolved in the 0.1L Tris-hydrochloric acid buffer solution that pH value is 8, obtains the dopamine solution that concentration is 1g / L; 2.5g cotton fabric is soaked in the dopamine solution that obtains above-mentioned, in 20 o Under the condition of C, take it out after stirring for 24 hours, wash the fabric with deionized water and absolute ethanol successively, and obtain the cotton fabric with the polydopamine layer attached to the surface after air-drying; soak the cotton fabric with the polydopamine layer attached to the surface above at a concentration of 0.01 In the 0.1L mixed solution of ethanol and water of 5-(4-aminophenyl)-10,15,20-triphenylporphyrin in mol / L, wherein the volume ratio of ethanol and water is 7:3, use three Ethylamine adjusted the pH of the mixed solution to 8, at 20 o Under C condition, take out after 24 hours with 200r / min speed stirring reaction, wash with deionized water and dehydrated ethanol successively, 40 o The ...

Embodiment 2

[0024] 0.15g dopamine is dissolved in the 0.1L tris-hydrochloric acid buffer solution that pH value is 8.5, obtains the dopamine solution that concentration is 1.5g / L; 2.5g hemp fabric is soaked in the above-mentioned dopamine solution that obtains, at 20 o Under the condition of C, take it out after stirring and reacting at a speed of 200r / min for 20 hours, wash the fabric with deionized water and absolute ethanol successively, and obtain the hemp fabric with the polydopamine layer attached to the surface after air-drying; the hemp fabric with the polydopamine layer attached to the above surface Soak in a 0.1L mixed solution of ethanol and water with a concentration of 0.01mol / L 5-(4-aminophenyl)-10,15,20-(sodium tri-p-benzenesulfonate) porphyrin, wherein ethanol and water The volume ratio is 6:4, the pH of the mixed solution is adjusted to 8.5 with triethylamine, at 20 o Under the condition of C, take out after stirring for 18 hours, wash with deionized water and absolute e...

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Abstract

The invention discloses a preparation method of a photosensitive antibacterial fabric. The method comprises the steps of soaking the fabric in dopamine aqueous solution to generate a fabric with a polydopamine layer on the surface, taking out the fabric, sequentially washing the fabric by utilizing the deionized water and absolute ethyl alcohol, and drying the fabric in the air to obtain the fabric with the polydopamine layer on the surface; soaking the fabric with the polydopamine layer on the surface in an ethanol and water mixed solution of BAPDPP compound, taking out the fabric after reacting for 6 to 24 hours, washing the fabric by sequentially utilizing the deionized water and absolute ethyl alcohol, vacuum drying the fabric for 5 to 10 hours at the temperature of 40 DEG C, and obtaining the photosensitive antibacterial fabric which is chemically bonded with a porphyrin compound by adopting the polydopamine as a bridging base. The photosensitive antibacterial fabric is good in soap washing resistance and high-efficient and lasting in antibacterial property, the sterilizing rate still can reach 95 to 100 percent after the fabric is washed for 20 times, the variety of the fabric is diversified, and the application range is wide; moreover, the preparation process is simple, environmentally friendly, low in cost and applicable to mass production.

Description

technical field [0001] The invention relates to a method for preparing a photosensitive antibacterial fabric. The method uses polydopamine as a bridging group to chemically bond a porphyrin compound to the surface of the fabric to obtain a photosensitive antibacterial fabric, which belongs to the technical field of textiles. Background technique [0002] With the improvement of human living standards and the advancement of science, people's functional requirements for textiles are gradually increasing, and the market for textiles with antibacterial functions is becoming more and more popular. At present, antibacterial agents can be roughly divided into two categories: inorganic and organic antibacterial agents, such as silver nanoparticles, quaternary ammonium salts, N-halogen compounds, guanidine polymers, etc. Bonding loses antibacterial properties and produces drug resistance. Photodynamic antimicrobial chemotherapy (PACT) is an anti-infective treatment that combines pho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/61D06M13/473C08G73/02D06M101/06D06M101/32D06M101/34D06M101/28
Inventor 顾绍金夏欢黄菁菁杜杰毫徐卫林徐灿红杨玲
Owner WUHAN TEXTILE UNIV
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