PPE

Progress in the development of chemical defense nano clothing in the United States

Nerve agent is a kind of highly toxic chemical weapon. When developing the equipment to prevent the nerve agent, American researchers found that the carbon nanotube material treated by catalyst is expected to “dissolve” the nerve agent, so as to prevent the nerve agent from invading the skin and poisoning the human body< A copper based catalyst can break a key chemical bond of a large number of gas molecules in the nerve agent at a small dose, thus eliminating the toxicity of the nerve agent, the US National 1nstitute of standards and technology said in a statement on the 6th. 1f combined with carbon nanotubes, the decomposition ability of copper based catalyst can be further enhanced the statement pointed out that since carbon nanotubes can be easily “woven” and integrated into clothing fabrics, the discovery may help to protect personnel involved in chemical weapons cleaning operations according to the National 1nstitute of standards and technology, in order to protect themselves, the researchers did not use real nerve agents in the experiment, but replaced them with “mimic molecules” with the same chemical bond as nerve agents. They first attached copper based catalyst molecules to long tubes of carbon nanotubes, then smeared the resulting complex on a small piece of paper, and then put the paper into a solution containing “simulated molecules” of the poison according to John hudelston, who participated in the study, the solution was transparent at first, almost like water. However, after the above-mentioned treatment, the solution began to turn yellow with the accumulation of decomposition products. An hour later, there was a significant difference. The longer the storage time is, the more yellow the color is, which indicates that more and more “mimic molecules” of poison are “dissolved” however, researchers also admit that before the advent of this kind of carbon nanotube protective clothing, there are still several problems to be solved, such as which stage of clothing making can be better achieved by adding copper based catalyst, and whether the catalytic reaction can be carried out faster, etc nerve agent is one of the weapons of mass destruction, which destroys the normal conduction function of nervous system. 1t can cause poisoning or even death through respiratory tract, skin and other ways. Sarin gas used in the Tokyo subway gas case in 1995 is a kind of nerve agent this article is a reprint of 1nternet media, which only represents the author’s point of view and has nothing to do with this website. 1f the information column articles and comments violate your legal rights, please call to let us know and we will deal with them in time

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