Mould-proof wallpaper loaded with medicine-loading chitosan and preparing method of mould-proof wallpaper

A technology of chitosan and chitosan microspheres, applied in special paper, paper, papermaking and other directions, can solve the problem of poor anti-mildew effect, etc., and achieve the effects of high retention rate, good performance and high drug loading.

Active Publication Date: 2017-01-04
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of poor anti-mildew effect of the above-mentioned existing wallpaper, the present invention proposes a drug-loaded chitosan and an anti-mildew wallpaper loaded with drug-loaded chitosan and a preparation method thereof

Method used

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  • Mould-proof wallpaper loaded with medicine-loading chitosan and preparing method of mould-proof wallpaper
  • Mould-proof wallpaper loaded with medicine-loading chitosan and preparing method of mould-proof wallpaper
  • Mould-proof wallpaper loaded with medicine-loading chitosan and preparing method of mould-proof wallpaper

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preparation example Construction

[0037] The invention provides a kind of preparation method of drug-loaded chitosan, and described preparation method comprises the following steps:

[0038] Configure the aqueous solution of sodium tripolyphosphate with a concentration of 2-3g / L as the cross-linking agent, and configure the aqueous solution of anti-mold and antibacterial agent with a concentration of 0.5-3g / L;

[0039] Add chitosan in 0.5-2% glacial acetic acid solution, fully dissolve, and adjust the pH value of the solution to 2-4, and prepare a chitosan / glacial acetic acid mixed solution with a chitosan concentration of 4-16g / L as Carrier;

[0040] Mix the aqueous solution of the antimold and antibacterial agent with the crosslinking agent at a volume ratio of 1 to 2:1 to obtain a mixed solution of the antimold and antibacterial agent, then slowly drop the mixed solution of the antimold and antibacterial agent into the chitosan / glacial acetic acid solution, Stir at room temperature for 2~4h, until the mixe...

Embodiment 1

[0054] 1, prepare drug-loaded chitosan earlier, it comprises the following steps:

[0055] The configuration concentration is 2g / L sodium tripolyphosphate aqueous solution as the crosslinking agent, and the configuration concentration is 3g / L anti-mold and antibacterial agent aqueous solution; the anti-mold and anti-bacterial agent in the anti-mold and anti-bacterial agent aqueous solution is sodium fluoride.

[0056] Chitosan was added in 0.5% glacial acetic acid solution, fully dissolved, and the pH value of the solution was adjusted to 2, and the chitosan / glacial acetic acid mixed solution with a chitosan concentration of 6 g / L was configured as a carrier;

[0057] Mix the antifungal and antibacterial agent aqueous solution with the crosslinking agent at a volume ratio of 1:1 to obtain the antifungal and antibacterial agent mixed solution, then slowly drop the antifungal and antibacterial agent mixed solution into the chitosan / glacial acetic acid solution, at room temperatur...

Embodiment 2

[0063] 1, prepare drug-loaded chitosan earlier, it comprises the following steps:

[0064] The configuration concentration is 2g / L sodium tripolyphosphate aqueous solution as the crosslinking agent, and the configuration concentration is 3g / L anti-mold and anti-bacterial agent aqueous solution, the anti-mold and anti-bacterial agent in the anti-mold and anti-bacterial agent aqueous solution is copper fluoride.

[0065] Chitosan was added in 0.5% glacial acetic acid solution, fully dissolved, and the pH value of the solution was adjusted to 2, and the chitosan / glacial acetic acid mixed solution with a chitosan concentration of 6 g / L was configured as a carrier;

[0066] Mix the antifungal and antibacterial agent aqueous solution with the crosslinking agent at a volume ratio of 1:1 to obtain the antifungal and antibacterial agent mixed solution, then slowly drop the antifungal and antibacterial agent mixed solution into the chitosan / glacial acetic acid solution, at room temperatu...

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Abstract

The invention discloses a mould-proof wallpaper loaded with medicine-loading chitosan and a preparing method of the mould-proof wallpaper. According to the mould-proof wallpaper, a chitosan/glacial acetic acid mixed solution serves as a carrier, a sodium tripolyphosphate aqueous solution serves as a cross-linking agent, the chitosan/glacial acetic acid mixed solution, the sodium tripolyphosphate aqueous solution and a mould-proof antibacterial agent aqueous solution are mixed with an ion cross-linking method, medicine-carrying chitosan microsphere emulsion is obtained and sprayed to the surface of base paper of PVC wallpaper with plant fiber body paper as a base material, and various chitosan/PVC medicine-carrying mould-proof wallpaper is prepared after drying. The mould-proof wallpaper prepared with the method meets the grade-zero standard of the national standard (GB/T 24346-2009), and the mould-proof effect is excellent. According to the mould-proof wallpaper and the preparing method thereof, the medicine-carrying chitosan microsphere emulsion is obtained through mixing with the ion cross-linking method, an organic solvent does not need to be introduced, and thus the prepared mould-proof wallpaper is environmentally friendly and safe.

Description

technical field [0001] The invention relates to the field of wallpaper, in particular to a drug-loaded chitosan, a mildew-proof wallpaper with the drug-loaded chitosan and a preparation method thereof. Background technique [0002] During the use of ordinary wallpaper, the wall is easy to get damp, which makes the wallpaper adhesive and plant fiber base unable to keep dry. In addition, the glue is too thick to dry, and it is easy to breed molds such as Aspergillus niger, which leads to the deterioration of the wallpaper during use. Mold and bacteria will endanger the health of the occupants. After the wallpaper becomes moldy, the fungal spores permeate the air, and the fungal spores enter the human body directly through the air people breathe. When the human body touches the wallpaper, the fungal spores can also enter the body through the wound on the skin surface, causing serious harm to human health. Modern medical research shows that many kinds of respiratory diseases ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/20D21H21/36D21H21/54D21H19/12D21H19/64D21H19/44
CPCD21H19/12D21H19/44D21H19/64D21H21/36D21H21/54D21H27/20
Inventor 陈礼辉林辉黄六莲曹石林
Owner FUJIAN AGRI & FORESTRY UNIV
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