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What is the effect of antibacterial nano zinc oxide on textile fabrics

October 22,2021.

Nano zinc oxide materials have been successfully applied to textiles in many fields such as medical, health, and health care. The antibacterial mechanism of nano zinc oxide is actually the result of the combined action of photocatalysis and metal ion dissolution.

Finishing process: weigh 3g low poly sodium polyacrylate, adjust the pH to 9-10 with 10% ammonia water, add 80g water and 1.5g nano zinc oxide, stir vigorously for 10min, put the mixed solution into ultrasonic vibration Fully shake in the vessel for 2h, add 1g of water-based polyurethane adhesive and 15g of distilled water, and fully stir for 10min. Add the pure cotton bleached cloth to the prepared finishing solution, soak it twice and roll it twice, with a residual rate of 80%, and dry it at 100°C.

The antibacterial properties of different bacteria, the antibacterial properties of all samples of nano-zinc oxide against Staphylococcus aureus are generally stronger than their antibacterial properties against Escherichia coli. The reason is that Staphylococcus aureus is a gram-positive bacterium with a pi isoelectric point of 2 to 3, and Escherichia coli is a gram-negative bacterium with a pi isoelectric point of 4 to 5, so it is near neutral or weakly alkaline. In the environment, bacteria are all negatively charged, especially Gram-positive bacteria are more negatively charged. The surface of nano-zinc oxide is positively charged, and it is easy to adsorb Staphylococcus aureus, which is a more negatively charged gram-positive bacteria, to its surface, thereby killing it.

Therefore, nano-zinc oxide can be widely used in masks, protective clothing and other textile fabrics that need antibacterial. It has good antibacterial effect and is cheaper than silver-based antibacterial agents.

SAT NANO is one of the best supplier of ZnO znic oxide supplier in China, we can supply 20nm, 50nm, 100nm, if you have any enquiry, please feel free to contact us at admin@satnano.com

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