"Particle Size Analysis" is an important process that must be applied to the research and production, especially in chemical industries, food industries, biotechnology industries, and pharmaceutical industries. This analysis process is used to realize the particle size and its distribution of a substance or material itself. Although the particle size is a physical condition, however, it not only affects physical properties (such as appearance, density, color, etc.), but according to the the compositions of material, it may also affect its chemical properties (such as reaction speed, effectiveness, and so on).
In order to meet the requirements of particle size analysis in different industries, there are various particle size analyzers in the market, which are designed based on different technologies. These instrument tool are used to analyze micro particles or raw materials in different range of sizes. Understanding the impact of particle size distribution in granularity and applications of the product, will be useful to determine its applicability and effectiveness.
In this article, we will discuss about the influences of particle size in different conditions, and listed below for your reference.
The size of the particles the verity in the amount of scattering and scattering angle of the reflected light with different wavelengths from the surface will result the different view of hue, gloss and transparency. This influence of particle size is particularly important in the coating, painting and dye related industries. One has to control the particle size in certain accuracy in order to get the perfect size range.
Some materials, such as powder or mixed powder, after these materials are re-condensed into a block or a sheet, it will has specific texture on its surface. Different size of the particles can have different flow speed during the solidification process and it will generate different texture on the surface. This difference in texture is especially important in the building materials industry, or in the epoxy industries.
For the food industry, the three elements, color, fragrance and taste are the key factors, which affect the sensory feeling of the foods. The particle size of the ingredients directly affects the result of visual, olfactory and taste of consumers. For example, the particle size of the coffee powder will affect the aroma and taste when brewing. The particle size of the sugar powder will cause the sweetness difference of the cake, while eating and chewing.
For some industries, the density of the particles which are stacked together is very important. Because the gap between the particles, the density often affects the strength of the product. For example, in the metal filling process of the mold, the finer the particles, the enhanced strength and usability of the product will be.
Finer particles, resulting a larger surface area, which are directly determine the ability and speed of dissolution. For the pharmaceutical industry, controlling the size of the drug particles can affect the degree of utilization and speed of the organism, which directly affects the effectiveness of the drug.
In order to ensure the precipitation stability of the material particles, the gravity of the particles and the buoyancy of the fluid must be controlled. For suspensions, the gravity of the particles must be balanced with the buoyancy of the solution. This property can be achieved by controlling the particle size of the material.
For solid materials, the surface area of the particles has an absolute correlation to the chemical reaction rate. Finer particles tend to accelerate the chemical reaction rate. For the cement industry, the product must be able to provide an appropriate reaction rate for easier usage.
For pharmaceutical manufacturers, the drug sprays that are inhaled through the nose or mouth must be able to ensure its comfortability and safety after the drug enters the nasal cavity or trachea. Particle size analysis is useful for drug sprays manufacturers.
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