Making method of graphene oxide-containing antibiosis and mildew prevention wallpaper
A technology of antibacterial and antifungal, antibacterial and antifungal agent, applied in the fields of botanical equipment and methods, preparation of ether, special paper, etc., to achieve excellent bactericidal performance, improvement of home environment, and low cost
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[0019] Example 1:
[0020] Separation, preparation and structural confirmation of the compound extracted from wild lily:
[0021] Preparation method: (a) Crush the dried whole plant of wild lily (10kg), extract with 80% ethanol under reflux (25L×3 times), combine the extracts, concentrate until there is no alcohol smell (3L), and then use petroleum ether (3L) ×3 times), ethyl acetate (3L×3 times) and water-saturated n-butanol (3L×3 times) extraction to obtain petroleum ether extract, ethyl acetate extract (398g) and n-butanol extract respectively; (b) In step (a), the ethyl acetate extract is removed with AB-8 type macroporous resin, first eluted with 10% ethanol for 8 column volumes, and then eluted with 75% ethanol for 10 column volumes, and collected 75 % Ethanol eluate, concentrated under reduced pressure to obtain 75% ethanol eluate extract (163g); (c) in step (b), 75% ethanol eluted extract is separated with 200-300 mesh normal phase silica gel, followed by volume The ratio...
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[0023] Example 2:
[0024] A preparation method of graphene oxide-containing antibacterial and antifungal wallpaper. The method includes: uniformly distributing the prepared antibacterial and antifungal agent on a base paper through a spraying process to obtain an antibacterial and antifungal enzyme wallpaper.
[0025] The antibacterial and antifungal agent comprises 0.5 parts by weight of nano graphene oxide, 2.3 parts of nano cerium oxide, 0.01 part of wild lily extract compound, 1.0 part of polyethylene glycol, 0.2 part of polyvinylpyrrolidone, and 20 parts of water.
[0026] The nano graphene oxide has a purity of ≥95%, a sheet thickness of 0.5nm, and a sheet length of 100nm.
[0027] The structural formula and preparation method of the wild lily extract compound are the same as in Example 1.
[0028] The preparation method of the antibacterial and antifungal agent specifically includes the following operation steps: (a) Under the action of ultrasound, parts by weight of polyethylen...
Example Embodiment
[0031] Example 3:
[0032] A preparation method of graphene oxide-containing antibacterial and antibacterial wallpaper. The method includes: uniformly distributing the prepared antibacterial and antifungal agent on a base paper through a spraying process to obtain an antibacterial and antifungal wallpaper.
[0033] The antibacterial and antifungal agent comprises in parts by weight: 4.35 parts of nano graphene oxide, 5.5 parts of nano cerium oxide, 1.65 parts of wild lily extract compound, 5.5 parts of polyethylene glycol, 1.8 parts of polyvinylpyrrolidone, and 80 parts of water.
[0034] The nano-graphene oxide has a purity of ≥95%, a sheet thickness of 2nm, and a sheet length of 800nm.
[0035] The structural formula and preparation method of the wild lily extract compound are the same as in Example 1.
[0036] The preparation method of the antibacterial and antifungal agent specifically includes the following operation steps: (a) Under the action of ultrasound, parts by weight of pol...
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