Super-hydrophobic porous chitosan/Ag@AgCl-TiO2 composite material and environmentally-friendly mask
A technology of porous chitosan and composite materials, which is applied in the fields of clothing, textiles, papermaking, and fiber processing, etc. It can solve the problems of non-reusable use, masks that cannot prevent haze and antibacterial, and waste masks that pollute the environment, so as to prevent the spread of droplets , Easy to clean and replace
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Embodiment 1
[0027] Such as figure 1 and figure 2 As shown, the environment-friendly mouth mask of the present embodiment includes a surface layer 1, an elastic band 2, a bridge of the nose 3, ear hooks 4, a first layer of lining 5, a functional layer 6, and a second layer of lining 7.
[0028]Surface layer 1 is linen or cotton linen or full cotton cloth or blended cloth, and the first layer lining 5 and the second layer lining 7 are all cotton cloths, and cloth is natural, comfortable to wear, and can be cleaned. Functional layer 6 is placed between the first layer of lining 5 and the second layer of lining 7, and functional layer 6 is an independent disassembly structure layer, which is convenient for cleaning and replacement of functional layer 6. The quantity of functional layers 6 can be set to 1~3 layers (determine the number of functional layers needed according to the weight of smog and epidemic situation), make this mouth mask prevent smog, bacterium, virus from inhaling human b...
Embodiment 2
[0039] The mask structure of this embodiment is the same as that of Embodiment 1, wherein the functional layer 6 is superhydrophobic porous chitosan / Ag@AgCl-TiO with medical gauze as the skeleton 2 Composite material, it is prepared according to the following method:
[0040] 1. Preparation of Ag@AgCl-TiO 2 Complex
[0041] Mix 14mL (39.74mmol) butyl titanate and 36mL 6mol / L hydrochloric acid, stir at room temperature for 3 hours, then stir for 3 hours in a constant temperature water bath at 70°C, age at room temperature for 24 hours, filter, wash with deionized water, and dry. The dried solid was calcined in a muffle furnace at 650°C for 3 hours to obtain TiO 2 . 5g TiO 2 Disperse evenly in 150mL deionized water, and add 50mL 0.1mol / L AgNO 3 aqueous solution, stirred at room temperature for 20 minutes, then added 40mL of 0.1mol·L -1 hydrochloric acid, stirred for 30min, then added 10mL l mol L -1 glucose aqueous solution, continue to stir for 30min, filter, wash with d...
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