Method for Strengthening Performance of Molecular Sieve
Molecular sieves are materials with uniformly sized pores (very small pores). The size of these pores is similar to the size of small chemical molecules. Therefore, large molecules cannot enter the molecular sieve or be adsorbed, while small molecules can. As a mixture of molecules migrates and passes through a fixed bed of porous semisolid matter that is called a sieve (or matrix), the components with the highest molecular weight (which cannot enter the molecular pores) leave the bed first and then are followed by sequentially smaller molecules.
Some molecular sieves are used in chromatography, a separation technique that classifies molecules according to their size. Other molecular sieves are used as desiccants (such as activated carbon and silica gel). What is the method of consolidating the performance and strength of molecular sieves? What is the application performance of molecular sieves? The performance of a molecular sieve is comparable and solid, and its structure, manufacturing factors, and strength are important components of its quality performance, but many users do not know much about it. So let’s try to understand the relationship between the factor and the strength of the product.
1. The method of consolidating the performance of molecular sieve —— direct method
It can be directly observed in the molecular sieve experiment that the intensity of the structure factor is proportional to the intensity of the diffraction point, but it cannot be directly observed in the local phase angle, so the process of crystal structure analysis is actually a process of determining the phase angle. Among all the methods for calculating the phase angle, the “direct method” is undoubtedly the current advantage.
2. The method of consolidating the performance of molecular sieve —— statistical method
The premise of implementing the direct method of molecular sieve powder structure factor and intensity is to collect a large amount of accurate diffraction intensity data, and use statistical methods to calculate the phase angle of each structure factor step by step. The direct method relies only on the diffraction intensity and does not require an initial structural model. Especially after the direct method is widely used, the direct method has become the most widely used structural analysis method at present.
Through the above experimental analysis, the structural factors and strength of molecular sieve powder complement and restrict each other. Therefore, when using the product, it is necessary to understand the application performance and effect of the product, do pre-application analysis, and then conduct an investigation to confirm its application effect.
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