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First, capsule modification Capsule modification is a surface modification method in which a film of a uniform thickness and a film having a certain thickness is coated on the surface of the powder particles. Rong et al. encapsulated TiO2 composite particles coated with Al2O3 and SiO2 with polystyrene, which effectively improved the absorbance and stability of the material. Zhu Liqun and other met...
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The application of nanomaterials in surface engineering is mostly to stabilize the nanoparticle dispersion in the organic medium. For example, the workpiece is ground and the antifriction material is dispersed in the lubricating oil in an appropriate manner. The ultrafine polishing liquid is nanometer SiO2, nanometer. Lubricants for nanoparticles such as Al2O3, nano-MoS2, nano-Cr2o3, and nano-diam...
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Silicon carbide whiskers are a kind of single-crystal fiber with a certain length-to-diameter ratio, which has very good high temperature resistance and high strength. It is mainly used in toughening applications where high temperature and high strength applications are required. Such as: aerospace materials, high-speed cutting tools. At present, it has a very high performance-price ratio. Silicon...
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Titanium is a chemical element, chemical symbol Ti, atomic number 22, located in the fourth cycle of the chemical periodic table, group IVB. It is a silver-white transition metal characterized by light weight, high strength, metallic luster and resistance to wet chlorine gas. The most common compound of titanium is titanium dioxide, which can be used to make white pigments. In the past, people use...
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Preparation method and introduction of nano silicon carbide powder infrared radiation coating 1.1 Ingredients Powder radiant mixture: 40 to 80 parts by weight of nano SiC (SiC) powder raw material, and zirconia (ZrO2) powder raw material 5 to 30 based on the weight fraction of (D50 is 40 nm, β phase) nano SiC powder raw material. 5 parts by weight or less of chromium oxide (Cr2O3) powder raw mater...
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Nano-zero-valent iron (nZVI) nanopowder is an iron particle with a particle size between 1 and 100 nm. Its specific surface area and reactivity are much larger than ordinary iron filings and iron powder. It can be directly injected into the heavily polluted area of the water environment to form an efficient in-situ reaction zone, which can control water pollution flexibly, efficiently and at low c...
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product description: The silver nanowires are dark gray or light gray and can be evenly dispersed in different solvents as a colloidal suspension. The diameter ranges from a dozen nanometers to hundreds of nanometers, and the length can reach tens of micrometers, all of which can be adjusted. This product can be further formulated into a transparent conductive coating liquid (or transparent conduc...
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Although carbon nanotubes have unique mechanical, electrical, and thermal properties, due to the strong van der Waals force and π-π interaction between carbon nanotubes, they are also easily agglomerated, and carbon nanotubes are modified or function Transformation is the main means to solve these problems. According to the existing research results, the functional modification of carbon nanotubes...
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The granular shape of titanium powder includes spherical, polygonal, sponge, and flake shapes. The granular shape is related to the method of preparing titanium powder. The requirements for titanium powder generally include three aspects, namely purity, particle size and granular shape. Titanium powder is divided into 4 grades. The size of 1000-50um is coarse powder, 50-10um is fine powder, 10-0.u...
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Particle size D 0.1 ～ 2.5μm, length 10-50um, purity 99+, gray-green. Silicon carbide whisker is a kind of high-strength whisker-like (one-dimensional) single crystal with many excellent mechanical properties such as high strength and high modulus. Mainly used in ceramics, high-temperature components in the aerospace field, main strong bearing blocks, large mud pumps, etc. Physical characteristics:...
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Nano silica dispersion, silicon oxide dispersion is translucent liquid, mainly used in coatings, refractory materials, textile industry, etc., with water resistance, fire resistance, scrub resistance, stain resistance. After the nano-silica is dispersed into a liquid, the appearance varies from white milky to colorless and transparent according to different dispersion systems. After the nano-silic...
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Nano titanium dioxide transparent dispersion adopts international advanced dispersion technology to disperse nano-titanium dioxide powder (5-30nm) in aqueous phase medium to form highly dispersed, uniform and stable nano-titanium dioxide aqueous transparent dispersion. In addition to the characteristics of nanometer titanium dioxide transparent dispersions, nanometer titanium dioxide transparent d...
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