Nano-tourmaline hybrid emulsion and preparation method thereof

Abstract

The invention discloses nano-tourmaline hybrid emulsion and a preparation method thereof, belonging to the technical field of hybrid emulsion preparation. The nano-tourmaline hybrid emulsion is prepared from sodium hexametaphosphate, sodium polyacrylate, nano-tourmaline powder, polytetrafluoroethylene (PTFE) emulsion and water. The preparation method of the nano-tourmaline hybrid emulsion comprises the following steps: weighing the sodium hexametaphosphate and the sodium polyacrylate, adding water into the weighed materials, putting into a stirrer, and stirring under the condition of heating; weighing the nano-tourmaline powder, adding water into the weighed nano-tourmaline powder, mechanically stirring, then carrying out ultrasonic dispersion, adding the PTFE emulsion, and mechanically stirring; after the sodium hexametaphosphate and the sodium polyacrylate in the step 1 are completely dissolved, adding the obtained water solution into a mixed solution of the nano-tourmaline powder and the PTFE emulsion in the step 2, mechanically stirring, and then carrying out ultrasonic dispersion so as to obtain the evenly dispersed and stable nano-tourmaline treatment fluid. A dust removal filter material prepared from the nano-tourmaline hybrid emulsion has very high electrets performance, can be used for collecting fine dust, increases dust filtering efficiency and dust removing rate, and reduces equipment resistance.

Description

technical field [0001] The invention relates to an emulsion and a preparation method thereof, in particular to a nano tourmaline hybrid emulsion and a preparation method thereof, and belongs to the technical field of hybrid emulsion preparation. Background technique [0002] As China's economy enters the era of heavy chemical industry, environmental pollution is becoming more and more serious, especially the PM2.5 inhalable fine particulate matter emitted by industry has the greatest impact on human health. It affects human respiratory system, immune function, cardiovascular system and central nervous system. Therefore, it is very important to reduce the emission of PM2.5 fine particles to protect the environment and protect people's physical and mental health. [0003] Under normal circumstances, conventional filter materials mainly rely on physical and mechanical barriers such as Brownian diffusion, interception, inertial collision, and gravity sedimentation to filter part...

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Problems solved by technology

[0003] Under normal circumstances, conventional filter materials mainly rely on physical and mechanical barriers such as Brownian diffusion, interception, inertial collision, and gravity sedimentation to filter particles in the air, so they are not ideal for filtering particles with small particle sizes, especially particles with a particle size of less than 5 μm. In order to achieve higher filtration efficiency, ordinary filter materials usually reduce the fiber diameter in the filter material, increase the gram weight, or weave the fabric more tightly, but the filter resistance of the material increases significantly, which increases the equipment resistance of the dust collector.

[0004] Electret treatment makes the fibers of the filter material charged. After the filter material is treated with electret, its filtration mechanism includes not only the original ordinary interception, but also electrostatic adsorption, so that it can be filtered without increasing the ventilation resistance. The filtration efficiency of the material has been significantly enhanced. At present, although there have been patent reports related to electret materials at home and abroad, the electret materials are mainly made of melt-blown materials through corona discharge and other methods. However, these electret materials The body material is only suitable for disposable products such as air purification and water treatment, and is not suitable for repeated use. Although there is a domestic patent report that tourmaline is loaded on the filter material, the tourmaline used in this patent has not been treated, which will make the filter After using the material for a period of time, it is not easy to clean the dust, and the resistance of the filter material increases, which increases the resistance of the equipment and affects the service life of the filter bag. Therefore, it is necessary to study a nano-tourmaline hybrid emulsion and its preparation method