A long-acting antibacterial and antifungal agent, its preparation method and application in space station environment

Abstract

The invention relates to the technical field of antibacterial and antifungal agents, and provides a long-acting antibacterial and antifungal agent, a preparation method thereof and an application in a space station environment. The long-acting antibacterial and antifungal agent provided by the present invention uses organosilicon quaternary ammonium salt as the main bactericidal component, which can inhibit bacteria, yeast and fungi for a long time, has high safety, and has no hidden dangers of acute toxicity and cumulative toxicity; the antibacterial and antifungal agent of the present invention The mold agent has long-acting antibacterial and antifungal properties, and bacterial molds are not easy to produce drug resistance; there is no hidden danger of discoloration, no toxic components, and can be stored for a long time; further, the present invention uses propylene glycol, etc. as a stabilizer, which can reduce the release of voc and avoid methanol The volatilization of toxic gases and other toxic gases in the special environment of the space station affects the health of astronauts. The long-acting antibacterial and antifungal agent provided by the invention can meet the long-acting antibacterial and antifungal requirements of aluminum alloys and textiles in the cabin of the space station. At the same time, the product has a low voc release amount and meets the air quality requirements of the space station.

Description

technical field [0001] The invention relates to the technical field of antibacterial and antifungal agents, in particular to a long-acting antibacterial and antifungal agent, a preparation method thereof and an application in a space station environment. Background technique [0002] Microorganisms on the space station will affect the health of astronauts and the safety of the cabin environment. Studies have shown that the growth rate of microorganisms on the space station is significantly faster than that of the ground control group. Researchers found 84 kinds of microorganisms in the cabin of the International Space Station, and identified 18 types of bacteria and 12 types of fungi, including 49 types of bacteria and 35 types of fungi. Microorganisms exist in the air, water and surfaces of the Mir space station. In the International Space Station, the fungi attached to the surface of materials are mainly Penicillium, Aspergillus and Cladosporium, all of which have a tend...

AI Technical Summary

Problems solved by technology

However, silver ions have a limited antibacterial time and are easy to change color after being used on textiles. They are not universal in the antibacterial application of various materials in the space station.

And more importantly, the accumulation toxicity of silver nano-ions in the human body has received more and more attention. Therefore, the large-scale use of silver-ion antibacterial products in the space station may cause hidden dangers to the health of astronauts.

[0004] To sum up, the excessive reproduction of microorganisms in space is a safety hazard that threatens the health of astronauts and the normal operation of components in the cabin. The existing methods cannot achieve the purpose of long-term and effective control of microbial reproduction.

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