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Sterilizing and virus-killing protective film and preparation method thereof

A protective film and virus killing technology, applied in flat products, other household appliances, packaging, etc., to achieve good antibacterial and antiviral effects, strong bioelectric field interference ability, and good sterilization performance.

Pending Publication Date: 2021-01-22
SHENZHEN JIAN NANOCOMPOSITES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the natural defect of plastic products is the nutrient source for the growth and reproduction of microorganisms such as bacteria, mold, and viruses.
The disinfecting effect of the disinfectant can only last for a short period of time. When new bacteria and viruses attach to the plastic wrap again, they start to survive and reproduce again, and there is a major hidden danger of cross-infection

Method used

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  • Sterilizing and virus-killing protective film and preparation method thereof
  • Sterilizing and virus-killing protective film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The bactericidal and virus-killing protective film mainly includes the following components in parts by weight: 90-95 parts of polymer plastic, 15-20 parts of polyhexamethylene biguanide compound disinfectant and 1-5 parts of nano-silver-copper alloy particles .

[0032] Among them, polymer plastics can be PI (polyimide), PE (polyethylene), PS (polystyrene plastic), PP (polypropylene), PC (polycarbonate), PVC (polyvinyl chloride) and Any one of PTFE (polytetrafluoroethylene) or a mixture of two or more.

[0033] The PH value of the polyhexamethylene biguanide compound disinfectant is 7-8. The polyhexamethylene biguanide compound disinfectant is controlled to be weakly alkaline. The fatty acid in the meat to be preserved undergoes a violent chemical reaction to destroy the nutritional structure of the meat. The polyhexamethylene biguanide compound disinfectant includes the following components: polyhexamethylene biguanide and bisdecyldimethylammonium chloride, polyhexam...

Embodiment 2

[0050] On the basis of Example 1, the bactericidal and virus-killing protective film also includes 2 parts to 10 parts of gamma-zirconium hydrogen phosphate in parts by weight, and the chemical formula of gamma-zirconium hydrogen phosphate is gamma-Zr(PO4)(H 2 PO4)·H 2 O, the spatial structure of γ-zirconium hydrogen phosphate is multi-layered. In each layer, zirconium atoms are on two parallel planes, with PO in the middle. 4 and H 2 PO 4 The group is a bridge, where PO 4 The four oxygen atoms of the group are shared with the four zirconium atoms, and the H 2 PO 4 The group shares two oxygen atoms with two zirconium atoms, and the remaining two -OH groups point to the space in the layer, and the force between layers is H 2 O molecule and =P(OH) on two adjacent levels 2 Hydrogen bonding force is formed, the interlayer distance is 1.22nm, each = P(OH) 2 The free area around the group is 0.36nm 2 , its interlayer spacing is 1.22nm greater than that of α-zirconium phospha...

Embodiment 3

[0052] On the basis of Embodiment 1, the bactericidal and virus-killing protective film also includes 5-10 parts of plant antitoxic agent in parts by weight, and the plant antitoxic agent is Echinacea powder or brown algae powder, and the flower tip of Echinacea contains cichoric acid , the leaves contain polysaccharides, and the roots contain alkylamines. These three natural nutrients have good antibacterial and antiviral effects, which further enhance the functionality of the protective film; brown algae contain fucoidan. When the virus reaches the surface of the protective film Fucoidan will bind to the surface protein of the virus, and even if the virus penetrates the protective membrane and reaches the surface of the protected object, it will lose the ability to replicate.

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Abstract

The invention relates to a sterilization and virus-killing protective film which comprises the following components in parts by weight: 90-95 parts of polymer plastic, 15-20 parts of a polyhexamethylene biguanide compound disinfectant, and 1-5 parts of nano silver-copper alloy particles, wherein the pH value of the polyhexamethylene biguanide compound disinfectant is 7-8, the polyhexamethylene biguanide compound disinfectant comprises the following components: polyhexamethylene biguanide and didecyl dimethyl ammonium chloride, and the weight percentage ratio of the polyhexamethylene biguanideto the didecyl dimethyl ammonium chloride is 1:2; the particle size of the nano-silver copper alloy particles ranges from 15 nm to 50 nm, the nano-silver copper alloy comprises, by weight, 40%-80% ofsilver and 20%-60% of copper, and copper metal atoms on the outer surface of the nano-silver copper alloy form copper oxide. According to the invention, the sterilization and virus killing protectivefilm can kill living microorganisms such as bacteria, mould and viruses attached to the surface of the protective film, the killing rate reaches up to 99% or above, and the path of contact infection of the bacteria, mould and viruses through the protective film is blocked.

Description

technical field [0001] The invention relates to the technical field of fresh-keeping film, in particular to a bactericidal and virus-killing protective film and a preparation method thereof. Background technique [0002] Plastic wrap is a widely used plastic product in people's lives, most commonly used for food preservation. Out of the need for epidemic prevention and control, its use has been newly expanded, and it is used to attach to elevator buttons, door handles, bus handrails and other human-contact positions in public places to prevent the corrosion of these items by disinfectant. [0003] However, the natural defect of plastic products is the nutrient source for the growth and reproduction of microorganisms such as bacteria, mold, and viruses. The disinfecting effect of the disinfectant can only last for a short period of time. When new bacteria and viruses attach to the plastic wrap again, they start to survive and reproduce again, and there is a major hidden dang...

Claims

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Application Information

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IPC IPC(8): C08L79/08C08L25/06C08L23/12C08L69/00C08L27/06C08L27/18C08L79/00C08L5/04C08K3/08C08K3/32C08K5/00C08K3/34C08J5/18B65D65/42B65D81/24B29D7/01
CPCC08J5/18B65D65/42B65D81/24B29D7/01C08J2379/08C08J2325/06C08J2323/12C08J2369/00C08J2327/06C08J2327/18C08J2479/00C08J2405/04C08K3/08C08K2003/328C08K5/0058C08K3/34
Inventor 吴银隆杨柳王聪林雨标
Owner SHENZHEN JIAN NANOCOMPOSITES CO LTD
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