During the prevention and control of NCP, the Guangzhou Center for Disease Control and Prevention, through monitoring and inspection of the external living environment of patients diagnosed with Covid-19, found that, the nucleic acid of the novel coronavirus was found on the doorknob of the home of a confirmed patient.

A new study published recently in the Professional Medical Journal The New England Journal of Medicine, scientists from the National Institutes of Health, the U.S. Centers for Disease Control and Prevention, the University of California, Los Angeles, and Princeton University, the stability of new coronavirus was evaluated by simulating the virus deposition caused by cough and contact in family or hospital environment. The study found that the new coronavirus on cardboard survival time of 24 hours; in plastic, stainless steel and other surfaces, the virus can survive up to 72 hours; in copper surface survival time * * * Short, only 4 hours.

Experimental results over the years confirm that copper has a rapid and extensive antibacterial effect on some highly toxic bacteria, fungi and viruses, they include ACINETOBACTER Baumannii, aspergillus Niger, campylobacter Jejuni, escherichia coli, influenza a (H1N1) , norovirus, pseudomonas Aeruginosa, Adenovirus, Candida Albicans, Helicobacter Pylori, mycobacterium tuberculosis, Enterovirus C, etc. . Scientific tests show that pure copper and copper alloys containing more than 60% copper (such as brass, bronze, copper-nickel alloy, etc.) have good bacteriostasis, and the higher the copper content, the better the bacteriostasis effect.

1.Defenders in the field of health care escort the health of mankind

Copper, is worthy of the name "treasure metal. ". In recent years, a special symbol "Cu + " has appeared on some medical equipment, furniture and accessories. This symbol indicates that the product contains antibacterial copper as an effective contact surface antibacterial material in the world. United States Environmental Protection Agency tests show that copper, brass, and bronze are effective against a variety of pathogenic bacteria. At Room temperature, antibacterial copper can inhibit bacterial growth 24 hours a day, kill more than 99.9% of methicillin-resistant staphylococcus, Vancomycin-resistant Enterococcus, staphylococcus aureus, enterobacteriaceae, PSEUDOMONAS AERUGINOSA and ESCHERICHIA coli on its surface in two hours, can greatly reduce the "secondary pollution" , the effect is far better than including silver coating, stainless steel, antibacterial plastic and other materials. Antibacterial copper as a natural antibacterial material, no harm to people and the environment, 100% recyclable. Antibacterial copper surface without any form of coating, even if repeated wear, pollution, natural oxidation is rusting to varying degrees, will not damage its antibacterial effect. In the face of powerful antibacterial copper, domineering bacteria are "chicken" .

The problem of bacterial infection in hospital has always puzzled the medical field. The main culprits of nosocomial infections include methicillin-resistant Staphylococcus Aureus, methicillin-sensitive Staphylococcus Aureus, clostridium difficile and ESCHERICHIA coli. These bacteria pose a huge health risk to patients. In addition to blocking the transmission of pathogens, the application of antimicrobial materials on environmental surfaces to improve infection control is also considered to be an effective method.

In a study published in the Journal of applied and environmental microbiology, scientists placed spots of bacteria on a stainless steel surface that mimics a finger print and found that the bacteria survived for a long time, copper or copper alloy surface disease bacteria will soon die.

2.copper, absolutely can be said to be"hard core"antiseptic ace

Experts believe that traditional sterilization methods such as hand-washing, although it can control hospital infection, but can not achieve adequate ideal results. The colonization of drug-resistant bacteria on surfaces was significantly reduced in hospitals where copper was heavily used. Door handle, sickbed fence, lighting switch, table, Faucet, infusion pole, etc. , these copper and copper alloy products have been widely used in many hospitals. According to the data of ICU research in USA, the incidence of nosocomial infection (HCAIs) was reduced by 40% ~ 70% compared with that of the non-copper Ward.

In addition to being used in hospitals, copper can also be used in other environments where emphasis is placed on the prevention and control of infection transmission, such as nursing homes, ambulances, gyms, schools, public buildings, public transport facilities, cruise ships, elevators, HVAC and other public safety and health equipment and the environment. Copper, without "supervision" , will continue to faithfully play the role of disinfection, but also for the pursuit of a better life for mankind to provide conditions.

3.High-performance copper pipe, a good helper in the field of modern architecture, contributes to the prevention and control of the epidemic

During the prevention and control of the epidemic, Peng Peng, director of Wuhan Lung Hospital, said that in addition to the shortage of personnel and protective equipment, there is also a prominent problem in the supply of oxygen. Critically ill patients require 100% oxygen, and critically ill patients require 10 times more oxygen than critically ill patients. As a carrier of oxygen and other gas transmission in hospital, Copper Tube for medical use has attracted much attention in the current epidemic prevention and control.

The medical gas pipeline system is one of the important parts of the medical facility hardware. The high quality pipeline material is the effective guarantee for hospital to rescue, treat and test. In order to avoid the change of medical gas quality caused by leakage, pollution and other factors, the gas pipeline should have good cleanness, corrosion resistance and tightness during the transportation of medical gas from the gas source terminal. In addition to a certain pressure, but also with more systems, branch pipe, many kinds of media, media characteristics complex, pipe variety and so on. Medical gas pipeline is different from common utility pipeline in civil buildings because of its safety and hygiene requirements, and the particularity and importance of its conveying medium. Once the accident of the medical pipeline occurs, it will not only threaten the safety of the patients'treatment and operation, but also do harm to others. Therefore, the safety and stability of medical gas system can be improved and the probability of accidents can be reduced by choosing safe and high quality pipe and reasonable construction connection. The gas transported by medical gas pipeline often acts directly on patients, so the requirement of cleanliness and toxicity residue is very strict. Because of the high cost of degreasing process, the price of medical copper pipe will be slightly higher than ordinary copper pipe.

The hospital is a public building with complex functions and many auxiliary facilities. Besides medical gas pipelines, there are also a lot of pipelines in the corridor ceiling. When choosing medical gas pipe, it is necessary to consider the bending factors at the joint of pipe and fitting. The copper pipe has good flexibility and adaptability, which can make up for the deficiency in construction. In addition, the non-flammability of copper pipe can play a good flame retardant effect, due to the internal structure of dense, copper pipe also has excellent leak-proof, anti-permeability performance.

Copper pipes also support the goal of green buildings. Green building, refers to the life cycle of the building, * * To save resources, including energy, land, water, materials, and so on, to protect the environment and reduce pollution, to provide people with healthy, comfortable and efficient use of space, a building in harmony with nature. Green building technology focuses on low consumption, high efficiency, economy, environmental protection, integration and optimization, interior design requirements to minimize the use of synthetic materials, energy saving. Green building has become the trend and standard of architecture design all over the world. From 1 August 2019, the Green Building Evaluation Standard of the People's Republic of China (GB/T50378-2019) , jointly issued by the Ministry of Housing and urban-rural development and the State General Administration of market supervision and administration, has been officially implemented. The standard clearly states that copper and stainless steel pipes are preferred in indoor water supply systems, and the "official declaration" of the superior attributes of copper pipes.

Copper water pipe high temperature expansion coefficient is small, low temperature strength, can withstand extremely hot and extremely cold temperature, is an excellent pipe supply hot water. Because the inner wall is smooth and clean, as a water pipe with small friction resistance, large flow, no noise and outstanding ability to resist pressure, it can significantly reduce the water leakage rate and make the pipe connection more secure. Copper pipes are 100% recyclable, have a high recycling value, and don't end up polluting the environment like plastic pipes. Although copper pipes cost more than ordinary plastic pipes and stainless steel pipes, copper pipes have a very long service life and do not require repair and replacement. 

Thought it was just "bronze" , did not think it turned out to be a "king. ". 

Source: Tongxinbao

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