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Vacuum plasma cleaning machine manufacturers on the relationship between free electrons and plasma

Vacuum plasma cleaning machine manufacturers on the relationship between free electrons and plasma

Normally, when we think of plasma or plasma, we think of ionized air or hot material from the sun. But if you assume that the free-electron model of metal is carefully thought through, the "gas" of free electrons moving in a positive ion scene is also a "plasma". In metals, the collective oscillation of the positive ion lattice can be quantized into phonon explosion, transmission and annihilation. Similarly, in metals, the collective oscillation of the free electron gas can be thought of as an agitation, or quantized as a burst, transfer, and annihilation of a quasi particle. A plasmon is this quasi particle, perhaps a "plasma unit." It's not an elementary element of a exciton. "Exciton" means "collective excitation" or "excitation "; "Plasmon" means "plasmon, "which is the basic unit of plasma, but it's completely absent. Free electrons and metal ions are the basic units of plasma in metals. There are two types of collective electron shaking in a metal: one in which the whole metal's electrons shake synchronously under the action of an external electric field, and the other in which they shake collectively on the surface of the metal. Because of the metal's effective shielding of the applied electric field, the collective sloshiness does not end up in the microscopic metal (and therefore is not easy to be as dense or cloudy as the high-temperature equivalent ionization proposed in the controlled fusion study), but only in the nanoparticles. Another kind of very common, we often call "metallic luster" also has to do with this. The second form of surface sloshing has been called "surface plasmon". In addition, the plasma cleaning is not fixed in one place, but pass, pass all things, because keeping electronic vibration and metal cations, inevitable part is no longer electrically neutral, but "polarization", focused on the local area and quasi particle properties of polarization, the formation of "surface etc from shock yuan" (SPP) so the name of a man. A little paraphrase, it can be called "surface iso-polariton", indicating that this exciton has the characteristic of "polarization". In this way, surface plasmas can also be classified as "plasmas". But this "plasma" is not the "solid, liquid, gas" side by side of the hot plasma that people think. The above is the CRF vacuum plasma cleaning machine manufacturers on the relationship between free electrons and plasma.

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Vacuum plasma cleaning machine manufacturers on oxygen hydrogen plasma etching graphene introduction

Vacuum plasma cleaning machine manufacturers on oxygen hydrogen plasma etching graphene introduction

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Plasma carbon nanotubes are modified for pollutant monitoring and treatment

Plasma carbon nanotubes are modified for pollutant monitoring and treatment

Plasma modification is a new process with short treatment time, no chemical pollution, no damage to the overall volume structure of materials, and only change the surface properties of materials. In recent years, the institute of plasma of low temperature plasma application laboratory, Chen Changlun, shao dong, polly, wang and other research using the low temperature plasma technology for surface cleaning of carbon nanotubes modified assembly, overcome the carbon nanotubes from the difficult solubility limit, greatly improve the level of its practical application. Carbon nanotubes (CNTs) have been modified and assembled by low temperature plasma technology, and a series of achievements have been made in the detection and treatment of environmental pollutants. Ar/H2O,Ar/NH3 and Ar/O2 microwave plasma were used to treat the surface of carbon nanotubes, and functional groups containing oxygen and amino were introduced into the nanotubes to improve their hydrophilicity and make them into nanosolutions. These functionalized materials have a good application prospect for improving the biosorption and environmental adsorption of carbon nanotubes. Applied Physics Letter (2010, 96, 131504); Carbon (2010, 48, 939-948);  The Journal of Physical Chemistry C (2009, 113, 7659-7665);  Some of the results were published in Diamond & Related Materials (in press). Two oral reports were also invited to the meeting. Secondly, the surface of carbon nanotubes was activated by N2 radiofrequency plasma, and the organic monomers and natural polymers were grafted onto the surface of carbon nanotubes to prepare carbon nanotubes/organic composite. The surface of composite materials prepared by isoionization system contains a variety of functional groups, which have strong adsorption and complexation effect on persistent organic pollutants (POPs), toxic and harmful heavy metal ions, radionuclides, etc., thus improving the ability of composite materials to adsorb pollutants. Some results were published in The Journal of Physical Chemistry B (2009, 113, 860-864). Chemosphere (2010, 79, 679-685);  Plasma Processes and Polymers (in press, and selected for cover). Due to the small size of carbon nanotubes (CNTs), it is difficult to recycle and reuse the organic/inorganic pollutants after adsorption. Conventional centrifugal method requires high speed, and filtration method is easy to cause filter membrane blockage, carbon nanotubes adsorbed pollutants into the environment, easy to cause secondary pollution. In order to solve the problem above, using the sol-gel method is a new type of nanometer materials, the material on the carbon nanotube assembly feng up the iron oxide, and then use N2 rf plasma activation/ferrite on the surface of carbon nanotubes, upper grafting organic monomer and natural macromolecular materials, was prepared with multiple composite magnetic nano materials, not only adsorption performance is good, In addition, magnetic separation technology can easily separate magnetic composite nanomaterials from solution, which solves the problem of difficult solid-liquid separation, and can be applied to practical work on a large scale.

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Application of Plasma Processer in Plastic Bottles

Application of Plasma Processer in Plastic Bottles

Because the production cost of plastic materials is low and many advantages are integrated, it has also been favored by glass packaging material manufacturers to some extent. Then what are the application and treatment functions of plastic plasma processor in plastic bottles? Plastic bottles are made of polystyrene, styrene, poly (ethyl terephthalate) and other materials. General cans are made of PVC or PET, carbonated beverage bottles are made of PET, refreshing mineral water bottles, liquid food bottles, polyethylene, detergent bottles, cosmetics bottles, milk cartons, lactic acid beverage bottles are mostly made of polyethylene. The plastic bottle material selection is mainly PP and polyethylene. PP material has low density, heat resistance, no deformation, high surface compressive strength, no toxicity, no harm, good organic chemical stability, and is mostly used for wine, sodium carbonate plastic bottle cap packaging. Polyethylene material is non-toxic, has good elasticity and impact resistance, but also easy to coating, resistance to high moisture, indoor environment stress cracking performance is better, more used for hot filling bottle stopper, cold filling bottle stopper (such as vegetable oil bottle). In daily life, in order to avoid people eating expired food, harm human health. It is common to see the barcode text on the cork or above the bottle, such as the date of birth, shelf life and so on. Some drinks are printed with certificates, letters and QR codes on the bottle stopper or bottle body for marketing purposes (e.g., award message: one more bottle). But in fact, plastic bottle surface treatment, plastic surface energy is low, poor wetting ability, high crystallinity, strong non-polar molecular chain, there are poor boundary layer and other properties. For bar code, printing ink is not easy to stick, easy to scratch, easy to fade, and if it is a drink, into the refrigerator after scraping, its test results show that this makes the manufacturer embarrassed, its quality also let consumers hit a big question mark in the heart. The plastic plasma processor relies on electromagnetic energy to form kinetic energy of high voltage and high frequency. After the kinetic energy is activated and adjusted in the spray gun tube of the plastic plasma processor equipment, the low-temperature plasma is formed in the arc discharge and sprayed to the treated surface surface by air compression, so that the surface surface touched remains super-purified and cleaned. Surface activation (introduction of polar oxygen-containing functional groups such as hydroxyl and carboxyl groups). After correct processing, plastic plasma processing machine can make the bottle stopper and bottle body to achieve a very good bar code printing effect, enhance wear-resistant, not easy to fade again.

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Atmospheric plasma surface treatment technology to provide you with effective process support

Atmospheric plasma surface treatment technology to provide you with effective process support

In the automotive industry, atmospheric plasma technology has innovated the flocking or coating of automotive seals, avoiding material loss and dust pollution problems. Atmospheric plasma also allows lamp manufacturers to choose a cheaper PP material over ABS material, giving them more room for choice in the glue system. In the automotive parts that need to be bonded assembly parts, such as door processing, air bag processing, sealing strip and decorative strip paste, atmospheric plasma surface treatment can improve the quality, simplify the processing process. In automotive painting, plasma treatments allow manufacturers to save on primer coatings, making products and processes more environmentally friendly. Electrical and electronic equipment manufacturing industry is also widely used in atmospheric pressure plasma technology. In the processing of mobile phones, a large number of processing links can be used atmospheric plasma treatment, such as the pretreatment before spraying mobile phones, pre-press treatment in the mobile phone UV coating or metal coating surface printing, plastic parts bonding pretreatment. In the manufacturing of household appliances, plasma processing technology has been successfully applied to the processing of microwave ovens, washing machines, refrigerators, etc. For electronic components, atmospheric plasma processing technology has been widely used in component cleaning, welding and packaging. In recent years, the packaging industry has developed rapidly in atmospheric pressure plasma processing technology. Atmospheric plasma processing has become an efficient and safe prepress method for high quality printing on inert and inexpensive materials such as PP and PE. For high grade packaging paper or board with a coating or coating on the surface, plasma treatment allows the paper to be printed or bonded like regular paper. In order to meet the requirements of environmental protection, water-based ink or water-based glue is gradually promoted. After atmospheric plasma treatment, when the surface can reach a state of 72mNm where water can fully diffuse, it will certainly bring great help to the use of water-based ink or water-based glue. The application of atmospheric plasma treatment technology in two-component injection molding is a new field. After plasma treatment, the two materials, such as TPU and PBT, or PC and silicone rubber, do not adhere to each other and can be firmly bonded after two-component injection molding. The characteristics of atmospheric plasma processing equipment, such as completely online, easy system integration, fast processing speed, strong processing pertinence, etc., enable it to work effectively with online injection molding system. In the surface treatment of thin films, plasma treatment can obtain higher surface energy than corona treatment. It is a strict single-sided processing method, because of the low processing temperature, the thermal effect on the film is very small. Depending on the different geometry of the treated surface, each gun can also be equipped with different nozzles to obtain a different shape of plasma flame. Plasma generator equipped with PLC system, easy to integrate with the host system. In addition, the system has strict process control function, which can monitor the whole process. With the development of domestic manufacturing industry, the demand for modern surface treatment technology is more and more urgent. We are pleased to provide you with effective process support through our atmospheric plasma surface treatment technology to solve any process difficulties caused by surface contamination or inertia in bonding, painting and printing.

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Plasma surface activation environmental protection equipment process applied to silica gel products

Plasma surface activation environmental protection equipment process applied to silica gel products

Silica gel products are a kind of heat resistant rubber, high temperature resistance, compared with other materials, silica gel has biocompatibility, made of products are quite durable, suitable for food, medicine and industry and other fields. But the surface of silica gel is easy to be contaminated with dust, manufacturers generally use the method of chemical spraying, improve the surface hydrophilicity of silica gel products, but this process is not only high cost, but also will affect the ecological environment, harm to human health, plasma surface activation equipment process green environmental protection will not affect. Theoretically speaking, there are oxygen atoms on the surface of silica gel, with negative electrode and static electricity, and dust particles with positive electrode, so dust particles and silica gel electrostatic surface can attract each other, make dust particles and surface difficult to clean, affect the appearance and efficacy of the product. The CRF R&D team has been working on a solution to the problem of silica gel surface contamination. Plasma surface modification technology can improve the performance of the product. Plasma treatment technology has been successfully applied to optimize the surface performance of the product. Plasma energy is used to modify the oxygen atom on the surface of silica gel, so that the negative silica gel surface becomes positive, and harmless organic chemicals are used in the processing process, which will not emit pollutants. It is a kind of clean production technology. It has lower electrostatic characteristics, better dustproof effect, improve the hydrophilicity of silica gel surface, increase the bonding effect of ink, glue, suitable for a variety of high requirements of products, such as glasses frame, watch strap, etc., can also be used in medical equipment and sporting goods, make these products better performance. Plasma surface treatment technology is suitable for fiber, polymer, plastic and other materials, but also can be used to clean, activate, etch metal, plastic and ceramic materials on the surface, change the physical properties of the material surface. It is a kind of green surface treatment technology to improve the bonding effect and spraying effect of materials and extend the life of products. Suitable for all kinds of silica gel and related products.

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