Share the magic of low-temperature plasma technology in air purification
Share the magic of low-temperature plasma technology in air purification: In addition to the frequently shared low-temperature plasma cleaning technology, low-temperature plasma technology can also be used in air purification, sterilization, deodorization, etc., can comprehensively treat the physical, chemical, and biological effects of various pollutants, and has low energy consumption, high efficiency, Obvious advantages such as no secondary pollution. Introduction of low-temperature plasma technology made by Chengfeng Zhizhi. Low-temperature plasma technology can generate negative ions in the air: In low-temperature plasma, high-energy electrons can cause gas molecules such as oxygen and nitrogen to carry electrons, thereby generating air negative ions. This negative ions are called "air vitamins" and "longevity elements". They have good health effects and are beneficial to humans. The life activities of other organisms have a great influence. Low-temperature plasma technology can achieve the purpose of biological disinfection: Low-temperature plasma has obvious biological killing effect. This feature has also been confirmed and applied in the outbreak of the epidemic. Because of the electrostatic effect produced by the low-temperature plasma technology, current shearing force is generated on the surface of bacteria, viruses and other microorganisms. This current shearing force is greater than the surface tension of the cell membrane, which can destroy the cell membrane of the microorganisms and cause the death of the microorganisms. , To achieve the effect of sterilization. Through the above discussion, we can realize that low-temperature plasma technology can not only purify the air, but also play a role in sterilization, keeping the air in a natural and fresh state. This processing effect is also unattainable by other processing technologies. Chengfeng Zhizao has focused on plasma cleaning machines for 20 years. If you have any questions, Chengfeng Zhizao is looking forward to your call!
Plasma treatment machine manufacturers introduce to you the desizing of cotton fabric by atmospheric pressure plasma treatment
Plasma treatment machine manufacturers introduce to you the desizing of cotton fabric by atmospheric pressure plasma treatment: Research on the modification of fiber materials by low-temperature plasma has been carried out since the 1970s. Low-temperature plasma treatment can improve fiber wettability, easy decontamination, printing and dyeing performance, etc. The following Chengfeng Zhizhi plasma treatment machine manufacturer will explain its process. The fabric must be desizing before dyeing, printing and finishing. Different slurry desizing methods are often different. For PVA pulp, the traditional method mainly uses H2O2 or alkali high temperature desizing, usually two hot and cold water washing, which consumes water and energy, and produces a lot of waste water. In recent years, we have applied atmospheric pressure plasma technology to remove PVA slurry from cotton fabrics. After the pure cotton sizing cloth sample is plasma treated, the cellulose itself is etched and the loss of water is relatively small, so the weight loss rate of the fabric. It can be considered as an important indicator that directly reflects the amount of PVA slurry that is oxidized and degraded into small molecules and disappeared by plasma. It can be seen that the plasma treatment of atmospheric pressure plasma treatment machine can cause the oxidative degradation of PVA slurry and lose weight. After the fabric containing PVA slurry is subjected to regular pressure plasma treatment, the weight loss is obvious, and the solubility of PVA in water after treatment increases, which helps For cold water desizing, these changes should be related to the changes in the chemical composition and structure of the PVA. These changes indicate that the atmospheric pressure plasma treatment machine plasma treatment will cause the PVA to undergo oxidative degradation, resulting in the reduction of CH and CC bonds, the increase of CO, C=O, O=C, and O- bonds, and the oxygen-air-helium plasma has an effect on PVA. The effect is stronger than that of air helium. Generally speaking, the PVA desizing process includes swelling, dissolution and dispersion. The molecular weight of PVA and the degree of degradation of macromolecules are two important factors affecting its desizing. XPS analysis shows that atmospheric pressure plasma treatment can cause PVA to undergo oxidative degradation and cause the PVA macromolecular chain to be cut, which is conducive to the swelling, dissolution and dispersion of PVA. Compared with the commonly used H2O2 desizing process, the atmospheric pressure plasma treatment of Chengfeng Zhizhi plasma treatment machine manufacturers can achieve the effects of water saving, energy saving and less pollution. Before plasma treatment, there is a lot of PVA slurry on the fiber, and the surface is uneven, and there are a lot of particulate matter attached, making the surface of the fiber rough. After plasma treatment, the particulate matter on the fiber surface has been significantly reduced, and the surface is relatively clean. Atmospheric pressure plasma from Chengfeng Zhizhi plasma treatment machine manufacturer has obvious oxidative degradation effect on PVA slurry. Plasma treatment increases the solubility of PVA slurry in cold water. This may be due to the degradation of PVA macromolecules into relatively small molecules due to the action of plasma, making it easier to swell and dissolve in water.
100+ application examples of automatic plasma cleaning dispenser help the product to increase the efficiency by 20%
100+ application examples of automatic plasma cleaning dispenser help the product to increase the efficiency by 20%: The utility model of the automatic plasma cleaning dispenser can effectively remove the tiny pollutants on the surface of the material, and at the same time improve the reliability, durability and anti-stripping performance of the water cleaning dispenser, and exhibits good plasma cleaning and dispensing in the actual process. The consistency of the machine will not cause delamination caused by glue overflow, glue breaking and air bubbles. So what are the application examples of plasma dispensing automatic cleaning? Like plasma cleaners, automated plasma cleaner dispensers are also widely used in practical applications. For high-precision fields such as semiconductors, precision electronics, medical care, automotive new energy, military aerospace, etc., due to reliability and safety reasons, generally They all use more complex materials and the time is often limited. Therefore, the process of cleaning first and then dispensing by plasma cleaning dispensers has been promoted and has become a recognized process in the industry. At present, typical applications in plasma cleaning dispensing equipment are as follows. Plasma cleaning technology is applied to smart phones and mobile terminal equipment: The automatic plasma cleaning dispenser can be applied to optical lenses, camera modules, touch screens, headsets, speakers, connectors, heat dissipation materials, PCB/FPC, display panels, metal frames, glass covers, passive components, vibration motors, etc., types There are many, far more than 100+ species, far more than the above list. Application of automated plasma cleaning dispenser in new energy vehicle manufacturing: At present, in the field of automobile manufacturing, plasma cleaners that can be used for the processing of automotive interior parts, engines, windshields, sealing strips, car lights, power batteries and other sub-products have become the mainstream of new energy vehicle production. Its processing capacity Will be enhanced day by day, and at the same time, with the development of the industry, the types of products that plasma cleaners can handle will also continue to expand. Application of automated plasma cleaning dispenser in the medical device industry: The field of medical equipment is also one of the main application areas of plasma cleaning dispensers. Specific products include sterilization boxes, blood collection needles, injection needles, indwelling needles, vacuum blood collection tubes, dialysis filters, pacemakers, surgical gowns, surgical instruments, Dental equipment, breathing masks, etc. Chengfeng Zhizhi has focused on plasma cleaning machines for 20 years, providing customers with plasma cleaning, activation, etching, and coating plasma surface treatment solutions. It is a trusted manufacturer of plasma cleaning machines in the industry. If you have any questions, please click "online customer service" to consult, Chengfeng Zhizao is waiting for your call!
Research on the plasma hydrophilic treatment of polyolefin synthetic paper by plasma cleaning equipment
Research on the plasma hydrophilic treatment of polyolefin synthetic paper by plasma cleaning equipment: Plasma modification is a new method of gas-solid coherent treatment of polymers. It has the advantages of fast, efficient, pollution-free, simple operation, and energy saving. The reaction only involves the shallow surface within 100 nanometers of the fiber without changing the polymer. The performance of the polymer can be given new characteristics. Plasma cleaning equipment has three main effects on fiber surface treatment: etching, surface cross-linking and attracting polar groups. Plasma usually contains high-energy particles. When these high-energy particles act on polyolefin fibers, heating, etching, and free radical reactions occur. These effects can attract temporary hydrophilic groups, but these hydrophilic groups are easy to disappear. In order to maintain the hydrophilic properties of the paper for a long time, a monomer that will have hydrophilicity after plasma treatment is often used ( Such as acrylic) is grafted onto paper fibers. Argon plasma hydrophilization treatment of polyolefin synthetic paper. Since argon is a non-reactive gas, the gas atoms do not directly enter the macromolecular chain on the surface of the polymer material, and will not have an essential impact on the properties of the polymer body. Use plasma cleaner equipment to hydrophilize the paper sample formed by manual sheeting: As the discharge power increases, the absorption performance of polyolefin synthetic paper increases to a certain value and then begins to decrease. This is because when the discharge power is increased, more and more free radicals are activated on the surface of the paper. Under a certain reaction temperature, it triggers an increase in the grafting rate of acrylic acid to polyolefin synthetic paper, and some oxygen-containing groups are produced on the surface of the paper. Groups, these groups can form hydrogen bonds with water molecules, making the contact angle of paper to water smaller. With the further increase of the discharge power, the absorption performance of the paper decreases. This may be due to the increase in the energy of the charged particles, and the cross-linking and etching effect of the plasma on the paper surface dominates, resulting in a decrease in the number of active groups. Absorption properties of polyolefin synthetic paper. The changing trend of rising first and then falling. The height of alkali absorption is also a reflection of the alkali absorption rate, and the alkali absorption rate is another important indicator of the hydrophilicity. The higher the electrolyte retention rate, the better the ability to absorb enough electrolyte. After absorbing the electrolyte, a diaphragm with very fine micropores is formed, and at the same time, the distribution is uniform, which is beneficial to prevent the formation of an electronic conduction path penetrating the diaphragm. At the same time, absorbing electrolyte can prevent the battery diaphragm from drying out and increase the cycle life of the battery. The effect of the processing pressure of the argon plasma cleaner on the absorption performance of the paper can be known, and the absorption performance of the paper increases first and then decreases as the processing pressure increases. In the beginning, the number of argon molecules was relatively small, so the number of charged particles was also limited, and the activation effect was obvious. Therefore, the absorption performance of paper increases rapidly with the increase of acrylic acid grafting rate. When the processing pressure continues to increase, the number of argon molecules increases, but because the power is constant and the energy of the system is constant, a further increase in the working gas pressure will cause the average energy of each particle to decrease, and the number of active particles that are truly ionized will decrease, which affects the activation. Effect, resulting in a decline in the absorption performance of the paper. After the polyolefin synthetic paper is treated by an argon plasma cleaning machine and grafted with acrylic acid, its hydrophilicity is greatly improved, which can meet the alkali absorption performance of battery diaphragm paper.
What are the special features of plasma excited state in plasma equipment
What are the special features of plasma excited state in plasma equipment: The plasma generated by the plasma equipment has unique physical and chemical properties and can be used in processes such as plasma cleaning, plasma activation, plasma etching and plasma deposition. What is its special function? 1. The temperature of electrons is higher, and the kinetic energy of particles is higher. 2. As an aggregate state of charged particles, it has conductivity similar to that of metals. 3. The chemical properties are active, and chemical reactions are prone to occur, such as the removal of organic matter by plasma. 4. Luminous characteristics, can produce a variety of light sources. For example, neon lights, mercury fluorescent lights, etc. are all plasma luminescence phenomena. The plasma generated by the plasma device has the above characteristics, which is caused by the collision between electrons and gas molecules in the plasma. When the collision energy is very small, an elastic collision occurs, and the kinetic energy of the electrons hardly changes. When the collision energy is very high, the low-energy electrons in the molecule will move around the nucleus, and they will get high enough energy during the collision to be excited to move on a high-energy orbit away from the nucleus. In plasma devices, such molecules in a high-energy state are called excited molecules, and their form is XY*. When the electrons in excited molecules jump from a high energy level to a low energy level, they release excess energy in the form of luminescence, because different light frequencies make people see different colors! If the energy of the colliding electron is high enough, the energy absorbed by the electron can make it break away from the nucleus and become a free electron, that is, the molecule is ionized. The collision of XY molecules with electrons can also decompose them into X and Y atoms (separation). If ":" is used to represent the bond-forming electron pair in the molecule, the dissociation process can be expressed as X:Y→X.+.Y; in this way, X and unpaired electrons (indicated by the symbols · beside X and Y) are easy A chemical reaction occurs, so it can be called a chemically active species or radical. Free state atoms such as H, O, CI, and molecules such as CH3, CF2, and SiH3 are all groups in the plasma cleaner. To determine their uncharged nature, we call them neutral groups, which is to be different from ionic groups.
Which automobile plastic parts can be sprayed with small plasma spraying equipment
Which automobile plastic parts can be sprayed with small plasma spraying equipment: Plastic products not only reduce the weight of the car body, reduce energy consumption, but also ensure function and safety; through different surface treatment processes, the comfort and decoration of the products are continuously improved. Before silk-screening, bonding, coating and other processes on plastics, the traditional surface treatment methods are manual polishing, flame burning and spraying primer. Now let’s discuss the application of small plasma spraying equipment in the surface treatment of automotive plastic parts. . Small plasma spraying equipment is widely used in the surface treatment of automotive plastic parts. Plastic parts account for more than 1/3 of the total automotive materials, most of which are composite materials, such as PP, ABS, PA, PVC, EPDM, PC, EVA, respectively Processed into bumpers, dashboards, central control panels, door panels, protective panels, engine covers, sealing panels, lamps, shockproof pads, etc. The composite material is made of a combination of multi-physical materials, which can complement each other's strengths and obtain excellent properties that a single material cannot achieve, such as polypropylene (PP) + glass fiber (GF20), polypropylene (PP) + EPDM rubber (EPDM) + Talc (TD20), etc., are widely used in automotive interior parts. Materials similar to PP, EPDM, and ABS+PC have low surface energy and poor wettability, which will affect the quality and surface performance of the screen printing, bonding, coating, and flocking of the material. After using small plasma spraying equipment to process the above materials, it is found that under the action of plasma active particles, the surface performance of the material has been greatly improved, and the tearing ability has also been greatly improved. From the analysis of the results, it can be seen that there are two main reasons: 1. The plasma discharge generated by the small plasma spraying equipment can introduce hydrophilic groups on the surface of the material, such as the hydroxyl group (OH) of the phenol group, the carboxyl group (-COOH) and the carbonyl group (C=O) of the carboxylic acid, thereby improving the surface of the material. The wettability greatly improves the adhesion and bonding strength of the substrate surface. 2. The plasma generated by the small plasma spraying equipment promotes the opening of the molecular bonds of the material, and the cross-linking effect and low molecular weight contaminants are removed. The surface of the material forms a clean and strong contact surface layer, which can also improve the bonding of the contact surface. Strength and binding power. Automotive plastic parts of various shapes and materials can be surface treated with small plasma spray equipment for flocking plastic parts. Not only can the quality control of flocking be guaranteed, but also adhesives that are harmless to the human body and the environment can be selected to reduce the health risks of the operator. Use vacuum plasma spray equipment to perform surface treatment before covering plastic door panels made of polypropylene (PP) + talcum powder (TD20) to enhance the bonding performance of the water-based polyurethane adhesive and plastic parts and improve the tearing force. Plastic products after surface treatment by small plasma spraying equipment, their bonding strength and bonding strength are the same as the electrode structure of the vacuum chamber of plasma surface treatment, discharge vacuum degree, gas type and ratio, gas flow size, treatment time, power supply, etc. The parameters are closely related; the plasma surface treatment has a certain timeliness, so the relevant production should be completed as soon as possible. If you are interested in plasma spraying equipment or want to know more details, please click Chengfeng Zhizao online customer service consultation. Chengfeng Zhizao is waiting for your call!
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