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What is the nano material? Nano-material refers to the size of less than 100nm (0.1-Ultra-fine particles of 100nm) constitute a general term for zero-dimensional, one-dimensional, two-dimensional, and three-dimensional materials with small-size effects.Nano is the translation of English namometer,Is a unit of measure in physics,1 nano is one billion of 1 m;Equivalent to the length of 45 atoms arranged.Generally speaking,Equivalent to the thickness of one in ten hair.Like mm, Micron,Nano is a scale concept,There is no physical connotation.When the material reaches the nano scale,It's about 1-This range of 100 nm,The performance of the substance will change,Special performance appears.This one is different from the original atoms and molecules,Material that is also different from the special properties of macro substances,That is, nano-materials.If only the scale reaches Nano,And materials without special properties,Nor can it be called nano-materials.Past,People only pay attention to atoms, molecules, or space
Smith water purifier and Qinyuan water purifier which is good? First of all, determine the role of water purifiers, such as filter filters, RO pure water machines, central water purifiers, direct drinking machines and all-in-one machines. select water purifiers to go to Shangbao to inquire about the water purifiers of specific specifications and brands. The following is an introduction: Ultra-filter, ultra-filtration is a pressurized membrane separation technology, that is, a special film that enables small molecule solutes and solvents to pass through a certain pore size under a certain pressure, the solute of the large molecule cannot pass through and stays on the side of the membrane, thus partially purifying the large molecule. Generally, it is composed of ultra-filtration membrane and stainless steel shell. Suitable for whole house central water purification. The flow of the central water purifier in the whole house is large, so it can provide the central whole house water purifier. The water purificatio