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The first reason is to change the inorganic filler from a general incremental filler to a functional filler. Inorganic fillers play an important role in the polymer materials industry and polymer matrix composites such as plastics, rubber and adhesives. Application and function of partially modified inorganic filler Inorganic filler Application Function Calcium carbonate PVC,PE, PP, Unsa...
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As the anode material of lithium ion battery, silicon nanopowder has the highest theoretical specific capacity (up to 4200 mAh/g), which is much higher than the carbon powder widely used at present, but the biggest disadvantage of silicon powder as the negative electrode of lithium ion battery is the process of alloying with lithium. In the case of a large volume change, the active material is det...
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1)Silicon carbide whiskers should be pre-dispersed as much as possible before use. They should be mechanically and ultrasonically dispersed with water, ethanol, etc., and then mixed with the matrix material. 2) The amount of silicon carbide whiskers added to the material is not as high as possible, and there is usually an optimum value. Ordinary ceramics are generally added in an amount of 1-10%. ...
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Nano silica powder is a filler for reinforcing high-temperature vulcanized silicone rubber. The silica nanopowder aggregates have a good reinforcing effect on the silicone rubber. After adding SAT NANO nano silica powder to the rubber, a microcrystalline region with silica as a nucleus is formed, which increases the physical cross-linking point. Crystallization is more likely to occur and the stre...
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A preparation method of a high-capacity silicon powder doped lithium battery anode slurry, which improves the capacity of the material by adding silicon nanopowder in the preparation process of the conventional anode slurry, and can meet the requirement of high energy density of the lithium ion battery And through the steps of thickener solution preparation, dispersing powder, high viscosity stirr...
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First, powder materials are the key to 3D printing ceramic technology Additive manufacturing (3D printing) is known as the third industrial revolution. For ceramic materials, the properties of raw material powders (such as purity, particle size and distribution, particle morphology, etc.) have a direct impact on the performance of ceramics. . Ideally, the components are characterized by fine contr...
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The addition of nano SiO2 powder as an admixture to cement-based materials can improve many of the properties of cement-based materials. A large number of research results show that adding appropriate amount of SiO2 nanopowder to cement-based materials, due to the volcanic ash effect of nano SiO2 particle, nucleation effect and micro-filling effect, can significantly improve the early strength of ...
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Cubic silicon carbide, Beta SiC, is a synthetic high-performance material (only a small amount of high-purity cubic silicon carbide exists in nature). It is called "cube" because its structure belongs to the cubic system (diamond crystal). This structure also determines its own superior physical and chemical properties. B-SiC has a Mohs hardness range of 9.5 to 9.75, which is close to the most Moh...
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Pure silicon carbide powder is a colorless, transparent crystal. Industrial silicon carbide is light yellow, green, blue or even black due to the type and content of impurities contained in it. The transparency varies with its purity. The crystal structure of silicon carbide is divided into hexagonal or rhombohedral α-SiC and cubic β-SiC (called cubic silicon carbide). Since α-SiC constitutes...
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The silicon carbide nanopowder has high purity, small particle size distribution range and high specific surface area; nano-silicon carbide has stable chemical properties, high thermal conductivity, small thermal expansion coefficient, high hardness and Mohs hardness of 9.5. Nano silicon carbide wear-resistant, high temperature resistant, corrosion resistant, acid and alkali resistant solvents. 1....
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New energy vehicles, communications and portable devices require lithium-ion batteries for high capacity and high endurance. Lithium-ion batteries urgently need to be updated to increase capacity, cycle and size. At present, the silicon-carbon negative electrode of lithium battery is all kinds of carbon materials mainly composed of graphite, and its theoretical capacity is only 372 mAh/g. In pract...
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Silicon nitride Si3N4 is a non-oxide high temperature ceramic structural material. Powdered Si3N4 can be prepared by reacting a mixture of SiCl4 vapor and NH3 gas. Powdered Si3N4 is unstable to air and water. Powdered Si3N4 can form a pungent odor, a gas commonly used as a refrigerant and a poorly soluble acid when it is in contact with water. Powdered Si3N4 can generate N2 and contact with air. a...
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