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Coating for adsorbing and inactivating viruses, and application thereof

A coating and virus technology, applied in the field of coatings for absorbing and inactivating viruses

Active Publication Date: 2021-10-01
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At present, inorganic antiviral materials and antiviral material coatings and related patents that have a good inactivation effect on highly infectious disease viruses such as the new coronavirus (COVID-19) have not yet been reported or published.

Method used

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  • Coating for adsorbing and inactivating viruses, and application thereof
  • Coating for adsorbing and inactivating viruses, and application thereof
  • Coating for adsorbing and inactivating viruses, and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] The preparation of catalytic material of the present invention comprises the steps:

[0038] 1. Preparation of powdery core-shell structured hierarchical porous materials

[0039] (1) Preparation of nucleus: NH 4 ZSM-5 molecular sieve (SiO 2 / Al 2 o 3 =25, the specific surface area is 550m 2 / g, particle size 2.3μm, average pore size 0.54nm) mixed with 0.35mol / L NaOH solution at a volume ratio of 1:30, heated and stirred in a water bath at 75°C for 2 hours, filtered the mixed solution, and washed the solid until neutral , after drying at 120°C for 6 hours and calcining at 500°C for 2 hours, a hierarchical porous molecular sieve, which is the core of the catalytic material, was obtained. Measure its average mesopore diameter 24.3nm with the automatic physical adsorption instrument (USA Micromeritics Company, ASAP 2460) that can measure the distribution and pore volume of mesopores and micropores, the pore distribution is 2.0-49.9nm, and the average micropore diamete...

Embodiment 1-4

[0053] Table 1

[0054]

[0055]

[0056] Table 2

Embodiment 5-20

[0058]

[0059]

[0060]

[0061] 2. Adsorption and inactivation test for viruses

[0062] 1. Virus preparation:

[0063] Prepare TCID separately 50 COVID-19 virus liquid (4.37×10 8 copies / ml) and TCID 50 The tools lentivirus (pLenti) virus solution (7×10 9 copies / ml) for adsorption and inactivation tests of novel coronaviruses and lentiviruses by powder materials and coatings;

[0064] 2. Prepare 9 kinds of multi-level porous material coatings (powders ground after drying at room temperature), numbered TL-1~TL-9, each material weighs 267mg, and 267mg of coatings that do not contain porous material components (the Brush the paint slurry on the polytetrafluoroethylene board, after drying at room temperature, scrape and weigh), put them into sterile 1.5ml EP tubes, add 0.8mL TCID dropwise 50 The lentivirus (pLenti) virus solution was reacted at room temperature for 30 minutes, and the mixture of the test substance and the virus solution was stirred and mixed once e...

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Abstract

The invention provides a coating for adsorbing and inactivating viruses. The coating comprises porous material powder, polyacrylate, hydroxypropyl methyl cellulose, polyethylene glycol and water, a shell of a porous material particle is composed of an oxygen storage material SiO2-CeO2, and a core of the porous material particle is a hierarchical pore molecular sieve. The coating disclosed by the invention can be used for adsorbing and inactivating viruses, and further, the coating is coated on an indoor wall surface and is used for purifying air in large public places of closed spaces such as hospitals, civil aviation, high-speed rails, subways, buses, office buildings and the like.

Description

technical field [0001] The invention relates to indoor air purification and protection technology for epidemic virus diseases, in particular to a paint for absorbing and inactivating viruses and its application. Background technique [0002] The spread of novel coronavirus (COVID-19) seriously threatens the safety of people's lives. The research and development of drugs and vaccines is currently in progress. However, according to the laws of drug and vaccine development, it may be difficult for related products to quickly enter the clinical and practical stage in a short period of time. In order to prevent the spread of the virus, there is an urgent need for long-term and efficient virus scavengers and inactivators for the protection of hospitals, large public places, families and individuals. [0003] According to reports, the transmission route of the new coronavirus includes the transmission of droplets, aerosols and dust in the air. Therefore, air purification in large ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D7/62C09D7/65
CPCC09D133/04C09D7/62C09D7/70C09D7/65C08L2205/03C08L71/02C08L1/284C08K9/12C08K7/26Y02A50/30
Inventor 马磊吴春田侯宝林朴海龙李林王稳冯璐张万生黄延强王晓东张涛
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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