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1.Characterization of particle size and distribution Dynamic Light Scattering (DLS): DLS is one of the most commonly used techniques for measuring the particle size and distribution of nanoparticles in suspensions. It calculates the hydrodynamic diameter of particles by measuring the time-dependent light scattering intensity fluctuations caused by Brownian motion of particles. DLS can also provide...
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With the increasing demand for high thermal conductivity materials, filled thermal conductive polymer composites have good application prospects. The performance of thermal conductive composite materials largely depends on the selection of thermal conductive fillers. Aluminum oxide (Al2O3)is a common ceramic filler with high hardness and good thermal conductivity, and is a commonly used choice to ...
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Powder surface modification changes the surface state of particles through physical or chemical means, with the core being to break the agglomeration force between particles. When the particle size of the powder decreases to the micrometer or nanometer level, the surface energy sharply increases, and van der Waals forces, hydrogen bonds, and other gravitational forces cause the particles to sponta...
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In today's paint and plastic industry, which pursues high performance, lightweight, and environmental protection, traditional fillers and reinforcing agents have long been unable to meet the demands of the high-end market. The emergence of nano high-purity magnesium oxide, with its triple advantages of "filling+reinforcement+functionalization", brings performance leaps to coating and plastic produ...
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SAT NANO is a best supplier of ZnO nanoparticle and TiO2 nanoparticle in China. They are used on antibacterial materials. Nano zinc oxide (ZnO NPs) and nano titanium dioxide (TiO ₂ NPs) are currently widely studied and applied broad-spectrum antibacterial materials. They mainly exert antibacterial effects through mechanisms such as photocatalytic production of reactive oxygen species (ROS), releas...
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Why modify the powder? Inorganic powders have hydrophilic and polar surfaces, but poor compatibility with organic matrices (plastics, rubber, resins). Direct use can lead to poor performance, so modification is necessary. (1) Improve dispersibility and prevent agglomeration. Inorganic powders with a large specific surface area are prone to agglomeration, which can lead to defects and a decrease in...
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Cobalt Blue powder is a deep blue inorganic pigment with excellent properties, which has a wide range of applications in industry, art, and scientific research. Here is a detailed introduction about it: 1. Chemical composition Chemical name: Cobalt Aluminate. Chemical formula: CoAl2O4 Crystal structure: It has a stable spinel structure, which allows it to maintain extremely high stability under ex...
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This guide provides a comprehensive technical framework for utilizing magnetite (Fe3O4) nanopowder as a functional filler to formulate industrial protective coatings with superior antistatic and electromagnetic shielding properties. It specifically addresses critical engineering challenges such as nanoparticle agglomeration, sedimentation, percolation threshold optimization, and coating adhesion. ...
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1. Intrinsic Color: Black Bulk (micron-scale) pure Fe3O4(Magnetite) appears deep black under visible light. Reason: Fe3O4 is a narrow-bandgap semiconductor (bandgap ≈0.1≈0.1 eV), which absorbs light across the entire visible spectrum with virtually no reflection, resulting in a pure black appearance. Industrial products: Larger-particle Fe3O4powders (micron-...
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