A concept of pop, often necessitates a series of products. With the environmental protection building materials are increasingly popular concept of health, a springtime "antibacterial" signs of antibacterial floor continuously into people's eyes. Principle the alleged anti-microbial, antimicrobial technology, Nano-Silver Photocatalyst germicidal antibacterial, zinc oxide and many other antimicrobial terminology is used for floor manufacturers, became the new sales gimmick.
Antimicrobial effectiveness of persistent, that if the definition of? add antimicrobial substances will not cause injury to the body ... Be blown in the marvelous effectiveness of antibiotic can play its antibacterial mission and environmental standards? I have visited on this.
Sales concepts fuzzy
In a building materials market, most brands have antibacterial flooring products that claim to be able to kill bacteria and eliminate dust mites, and some have even claimed to cure diseases. A brand flooring made continuous sterilization signs, duration of 15 years, when I asked about is there a correlation detection standards, a sales staff to 1 copy of the report of analysis examination wave table, a look at test time should be September 2005, I propose to look, but was turned down, claiming that there is absolutely no antibacterial rate. But when I asked its floor bacetrial, specific to kill any bacteria, viruses, salespeople are also explained. Another brand floor salespeople said: "antibacterial floor also not some floor traders in speculation, flooring was more with glue, no formaldehyde exceeds the allowed figure is very nice, also disinfects?"
Consumers confused
Interview the author found that many consumers on the floor of antibacterial function are not widely understood, a pinch of salt. Consumers miss Zhang said, "only heard of green floor, haven't heard can protect health sterilization of the floor. Sales people themselves don't know these concepts, it is difficult to believe that the consumers. "A consumer said:" now the floor manufacturers advocacy features too much, from the Green, green to antibacterial, etc., is not a concept in hype? "
Antibacterial antibiotic to the floor
This reporter has learned that the antibacterial flooring is to a certain amount of antibacterial agents added to the floor surface of wear-resistant layer, after processing, it can make the surface bacteria breeding inhibited, thus the purpose of the antibiotic. Now available in the more popular antibacterial floor there are two broad: one is the use of silver ion antimicrobial technology, this technique is to human security harmless silver ions to join in some nanoscale materials, then add into the floor surface of wear-resistant layer, with the use of the floor, silver ion continues slowly released and airborne bacteria occur contact reactive and photocatalytic reaction to destroy bacteria that their deaths. Another way is to use light catalyst anti-bacteria technology, light catalyst's main ingredient is nano-titanium dioxide absorption of ultraviolet light, which is in a high energy State, and the high energy transfer to the reaction of the chemical reaction, to suppress the air in bacterioplankton, the purpose of the mold, dust mites. In addition, there is also a composite silver ion antimicrobial technology, Nano, or use of tetrapod-like ZnO crystals have antimicrobial technology, etc.
Germicidal antibacterial is not equal to
Antibacterial so magical, so it's really like some of the floor as enterprise that can kill floor surface even airborne bacteria? reporters interviewed on this problem of antimicrobial materials testing center of Chinese Academy of Sciences. Test Center Director history weiming describes: "germicidal antibacterial does not mean that consumers don't get confused with antibacterial and antiseptic, antibacterial currently on the market is in the flooring material added antibacterial agent, but regardless of antibacterial agents are unable to kill the bacteria in the air. Antibacterial floor only on the floor surface of bacterial inhibition plays a certain role. ”
Antibacterial is a double-edged sword
In the face of an upsurge of antibacterial concept, the experts seem unusually calm, "the future of antibacterial flooring is definitely one of the flooring industry development trend, but for now, there are many technical issues that need to be addressed, particularly on issues such as antimicrobial security. "Peking Union Medical College Professor of direct mail bin said:" many enterprises have claimed that the product uses nano-materials, and when the material reaches the nano-scale particles, particularly strong penetrating ability, can easily penetrate the cell membrane and the blood-brain barrier (brain cell membrane on particle barrier effect), entered into cells that destroy native organisations and nuclei, thereby destroying cells life or produce mutations. "The problem lies in this. Prof. Yang Tzu said the nanometer level fungicides in medicine known as a "non-specific" bactericides, which means it's time to destroy the cell is "indiscriminately", with the exception of bacterial cells, it can also be smoothly into human cells. This is the so-called toxicity of nanoparticles. While many antibacterial floor is through the continued release of nano-particles for the effectiveness of the killing the bacteria. From this follows that nanoparticles on human body at least potential hazards. So, the extent of this harm? keep nanoparticles with selectivity in order to prevent harm to human body cells? actually, nano-world for humans, or an unknown world, its many properties are also being explored.
Now the key is that with a healthy, qualified antibacterial floor, Nano-particle emission should be and how much will not cause harm to the human body? the security level of nanoparticles release criteria, is in urgent need of experts research and testing of primary issues to be solved. In a press interview, many consumers are more on antibiotic floor. Especially in the elderly and children, families, and even more on antibiotic is obsessed with the floor. Inhibition antibiosis floor to floor surface of bacteria, it is beyond doubt, but it also does not like some of the manufacturers of that can eliminate indoor all bacteria.
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