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The particle size of nano-level silver powder is usually between 20nm and 100nm. The performance of nano-silver powder is directly related to the particle size. The study found that the smaller the particle size, the higher the valence state, and the stronger the bactericidal performance. What are the important factors affecting the performance of nano-silver powder? Common metal activity sequence...
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1.physical properties Appearance and properties: black or black-brown crystalline or amorphous powder Relative molecular mass: 86.94 Chemical formula: MnO2 Melting point (℃): 535 (decomposition) Relative density (water=1) 5.03 Boiling point (°C): 535°C Solubility: insoluble in water, insoluble in nitric acid Storage: Store in an airtight and cool place 2.chemical properties Manganese dioxide is th...
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Manganese dioxide, also known as "manganese peroxide", "black manganese oxide", is a black orthorhombic crystal or brown-black powder, and there are many variants. Insoluble in water, nitric acid, cold sulfuric acid and acetic acid, soluble in cold and concentrated hydrochloric acid to generate unstable light brown-green MnCl4, which is heated and reacted with concentrated hydrochloric acid to rel...
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1. Packaging of nano powders Most nanopowders will agglomerate again due to extrusion or moisture absorption, so the packaging of nanomaterials is very important. We will choose packaging materials according to the type, character and quantity of products purchased by customers, usually vacuum packaging in aluminum bags, or storage in water, we will tailor a reliable packaging solution for your go...
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The specific surface area is the surface area (㎡/g) of the substance per unit mass. It is one of the most important physical properties of ultra-fine powder materials, especially nano-powder materials. It is used to evaluate their activity, adsorption, catalysis and other properties. important physical properties. Therefore, in the research, manufacture and application of various ultrafine powder ...
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Characterization and testing technology is the fundamental way to scientifically identify nanomaterials, understand their diverse structures, and evaluate their special properties. The main purpose of characterization of nanomaterials is to determine some physical and chemical properties of nanomaterials, such as morphology, size, particle size, chemical composition, crystal structure, band gap an...
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Characterization and testing technology is the fundamental way to scientifically identify nanomaterials, understand their diverse structures, and evaluate their special properties. The main purpose of characterization of nanomaterials is to determine some physical and chemical properties of nanomaterials, such as morphology, size, particle size, chemical composition, crystal structure, band gap an...
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Nano ATO has excellent electrical and optical properties, and is widely used in coatings, plastics, textiles, polymer films, electronic products and other fields by virtue of its good electrical conductivity and antistatic properties. Nano ATO is much better than other antistatic materials, such as graphite, surfactant, metal powder, etc. The interaction of uniformly dispersed ato conductive nano ...
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In building energy conservation, the light transmission and heat insulation of glass is a very critical issue. In buildings with transparent ceilings and large-area exterior windows, the thermal radiation of sunlight will lead to an increase in the energy consumption of air conditioners, resulting in a large energy waste. In order to improve this phenomenon, nano-scale antimony doped tin oxide ATO...
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Transmission Electron Microscope (TEM) Transmission electron microscopy uses an electron beam that penetrates a sample to image, which requires the sample being observed to be "transparent" to the incident electron beam. Transmission electron microscopy is widely used in materials science and biology. Since electrons are easily scattered or absorbed by objects, the penetration is low, and the dens...
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In summer, the sun is strong, and the sunlight enters the room through the glass, causing the temperature in the car to rise sharply, which seriously affects the comfort of living and vehicle riding. Among them, the energy in the infrared band accounts for the largest proportion, and it is also the main source of energy for the temperature increase in the place where the sunlight is irradiated. By...
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Glass thermal insulation coating is a kind of coating prepared by one or more nano powder materials. The nano materials used have special optical properties, that is, they have high blocking rate in the infrared region and ultraviolet region. , has a high transmittance in the visible region. Using the transparent and heat-insulating properties of the material, it is mixed with an environmentally f...
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