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1. Nano zinc oxide is an active agent and vulcanizing agent for rubber. Due to the small size effect and large surface effect of nano-materials, the function of nano-zinc oxide in rubber formulations is not only a high-active agent, but also improves wear resistance. It can improve the adhesive force of the rubber frame material, increase the deformation ability and reduce the heat generation and ...
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Application Analysis of Nano Tungsten Trioxide Nano WO3 yellow tungsten has a large specific surface area and significant surface effect. It is a good catalyst. It can be used as both a main catalyst and an auxiliary catalyst, and it has a high selectivity to the reaction. WO3 has a strong ability to absorb electromagnetic waves and can be used as an excellent solar energy absorbing material and r...
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Carbon nanotubes are simply classified according to the number of layers of graphene sheets: single-walled carbon nanotubes and multi-walled carbon nanotubes. The difference between the two is mainly reflected in: 1. Discover the time difference In 1991, when Li Ji-ma, an electron microscope expert in the Basic Research Laboratory of NEC Corporation, Japan, observed the C60 structure under a high-...
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Nano sized hydroxyapatite has stable performance under physiological environment, and its ability to induce new bone formation is unmatched by other materials. It is widely used in human bone bionic regeneration materials and hydroxyapatite coatings. Bone is the stent of the human body, participates in the metabolism of the whole body, and is an important part of the human movement system. However...
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Conductive glue is composed of non-conductive resin and conductive filler. Since epoxy resin has excellent mechanical and thermal properties, low shrinkage, good bonding ability, resistance to mechanical and thermal shock, and strong resistance to humidity, solvents and chemical reagents, epoxy resin The resin system conductive adhesive is the most researched. As the key material of conductive adh...
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1. The history of nano gold powder development In 1885, nano gold solution was often used as the main ingredient in the treatment of alcoholism in the United States; In 1890, Dr. Koch discovered that Mycobacterium tuberculosis could not survive on the surface of gold; Nano gold was used to treat arthritis in 1890; In 1935, Chicago surgical expert Edward et al. discovered that nano-gold solution ca...
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The singular properties of nanomaterials include: ①Surface effect The surface area of a spherical particle is proportional to the square of the diameter, and its volume is proportional to the cube of the diameter, so its specific surface area (surface area/volume) is inversely proportional to the diameter. As the particle diameter becomes smaller, the specific surface area will increas...
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As a new material of the technological revolution, ceramic materials have attracted the attention of some developed countries as early as more than ten years ago. The fatal shortcomings of ceramic materials are its brittleness, low reliability and low repeatability. These shortcomings have seriously affected the application range of ceramic materials. Only by improving the fracture toughness of ce...
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Conductive silver paste is a low-temperature baking conductive silver paste specially designed for resistive and capacitive touch screen circuits. It is made of high-performance resin and silver powder, with good conductivity, and the content of silver particles in the conductive silver paste. Metal silver particles are the main component of conductive silver paste, and the conductive properties o...
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The chemical reduction method of silver coated copper powder refers to the process of using a reducing agent to reduce the ions in the main salt to elemental form and depositing on the surface of the substrate with autocatalytic ability in a metastable solution system. When the reducing agent is oxidized on the catalytically active surface, free electrons are generated. These free electrons can re...
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Cu is a transition metal and has a special electronic structure and electronic gain and loss properties that are different from other metals. It can show good catalysis for different chemical reactions and is widely used in the field of catalysts. When the size of CuO particles is as small as nanometers, due to the special characteristics of multiple surface free electrons and high surface energy ...
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The displacement reaction method is a common process for processing silver-coated copper powder. Because the surface activity of copper powder is very large, it is easy to oxidize, so it must be pretreated before coating the copper powder. 1. Put the required amount of copper powder into the pretreatment tank, and then wash with 15% 30% dilute sulfuric acid to keep the pH of the solution at 3 2. W...
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