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Invisible material refers to a material that can reduce or eliminate the reflection of light on the surface of an object, making it invisible or reducing its visibility. The principles of commonly used stealth materials currently include the following: The principle of refractive index control: By utilizing the difference between the refractive index of the material and the refractive index of the...
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In recent years, the application of nanomaterials has received increasing attention. Nanomaterials have a larger specific surface area and submicron size, giving them chemical and physical properties that differ from macroscopic substances. The crystal structure of nanomaterials has a significant impact on their properties. Nanomaterials with different crystal forms have certain advantages in thei...
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How to dilute nano silver dispersion from high concentration to low concentration? How much deionized water should be added? Nano silver dispersion is an important nano material with various applications such as sterilization and anti-corrosion. When using this material, it is sometimes necessary to dilute the high concentration dispersion to obtain the desired low concentration. So how should dil...
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With the continuous development of nanotechnology, nano powder dispersion, as an important nano material, has attracted more and more attention. SAT NANO, as a company specializing in the production of nano materials, provides high-quality nano powder dispersion. This article will introduce the conversion of PPM, PPB, and PPT in solutions and their respective meanings. PPM stands for "Parts per mi...
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What are the surface modification methods for alumina powder? Aluminum oxide, a common material, is commonly used in the production of ceramics, coatings, catalysts, etc. However, in some applications, such as filling composite materials or preparing high-performance catalysts, surface modification of alumina is required to improve its performance and stability. This article will discuss the surfa...
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(1) Particle size characterization Particles disperse in liquid to form a suspension system. The smaller the particle size and the more stable it becomes over time, the better its dispersion and less likely it is to agglomerate. Particle size characterization is commonly used to characterize the particle dispersion before and after surface modification. The better the dispersion of particles, the ...
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1. Antibacterial agents and their classification Antibiotics refer to drugs that can inhibit bacterial growth, damage their living environment, and effectively and continuously exert their effects. Antibacterial agents are divided into two categories: organic antibacterial agents and inorganic antibacterial agents. Among them, organic antibacterial agents include natural and synthetic types, while...
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In recent years, with the rapid development of 3D printing technology, NiTi alloy powder has attracted much attention as a key raw material for biomedical implants. As the foundation of 3D printing, the quality of powder raw materials is crucial, and the plasma rotating electrode atomization method has attracted much attention. Preparation method of plasma rotating electrode The PREP method is use...
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The properties of vanadium dioxide: The molecular formula of vanadium dioxide is VO2, with a molecular weight of 82.94. It is a dark blue crystal powder with a monoclinic crystal structure. Insoluble in water, easily soluble in acid and alkali. When dissolved in acid, it cannot generate tetravalent ions, but generates positive divalent vanadium oxide ions. When heated to red heat in a dry hydrogen...
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The reasons for peak shift in XRD (X-ray diffraction) usually involve changes in the properties of the sample itself or the influence of experimental conditions, which can be analyzed from the following aspects: 1. Sample factors 1.1 Residual stress or lattice strain Residual stress: Residual stress inside the material (such as compressive stress or tensile stress) can cause changes in the lattice...
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What is graphene quantum dot Graphene has a wide range of application prospects, but due to its zero bandgap characteristics, low dispersion in water, and low spectral absorption, it cannot be applied in many fields such as optoelectronics, biological imaging, and semiconductors. Therefore, preparing graphene quantum dots (GQDs) is an effective method for adjusting the bandgap of graphene and appl...
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