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DBD atmospheric pressure plasma cleaning machine supplier plasma introduction

DBD atmospheric pressure plasma cleaning machine supplier plasma introduction

Atmospheric pressure DBD plasma cleaning machine, refers to the equipment that can cause gas ionization and produce similar glow plasma at 1 standard atmospheric pressure or close to atmospheric pressure, also known as atmospheric pressure DBD plasma cleaning machine, quasi glow atmospheric DBD plasma cleaning machine. Quasi-glow discharge plasma is more stable and more uniform than filamentary discharge, and is more suitable for large area surface treatment of materials or products. 1. atmospheric pressure DBD plasma cleaning machine quasi-glow plasma: When glow discharge is formed at atmospheric pressure, a certain initial electron density must be reached. When the electron density to be ionized is large enough, a large area of glow discharge can be generated, so that the initial avalanche heads can overlap and merge with each other, and the electric field gradient of tangential space charge is relatively low. In the residual gas, the gas purity, gas adhesion, the existence of metastable state, electrons and ions have great influence on the gas ionization intensity. The residual particles in the first half cycle, that is, in addition to the memory charge on the surface of the dielectric, can also play a memory role in the whole discharge volume at an appropriate discharge frequency. In addition, the medium with special properties is also conducive to the generation of large area uniform plasma. A large amount of charge can accumulate on the surface of a dielectric. These charges can be uniformly bound to the surface of the medium under high pressure. In addition, when the electric field polarity changes and exceeds a certain threshold value, the charge will be repulsed from the surface and ignited to block the discharge at the same time under the high current density. For this high current, the peak current in each half of the current waveform lasts only a few nanoseconds; The duration of helium discharge and nitrogen discharge is 3 microseconds and 200 microseconds respectively under normal glow discharge conditions. 2.the average energy of electrons in the atmospheric pressure DBD plasma cleaning machine: In the application of plasma chemistry, electrons with higher energy are often required, and electrons with lower energy can only consume electric energy through vibration, which cannot meet the reaction conditions of chemical reaction. Therefore, improving the distribution of high-energy electrons in the discharge space is the key to obtain effective chemical reactions in plasma. According to the research, the average energy of electrons in DBD plasma is between 1~10eV. For dissociable and dissociable gas molecules, the electron energy higher than 10eV has a more significant effect on them, and the size of the electron energy is usually closely related to the discharge conditions such as electrode structure, power, frequency, etc. 3.atmospheric pressure DBD plasma cleaning machine plasma radiation: The process by which plasma emits electromagnetic waves is radiation. The plasma produced by gas discharge is often accompanied by luminescence, and its color is related to the type of reaction gas. In addition to emitting visible light, it can also produce ultraviolet, X - rays and so on, which are actually electromagnetic waves. The main source of plasma radiation is the change of motion state of particles in plasma, especially the more diversified motion state of electrons. In addition to the bound electron, there is a free electron whose kinetic energy can vary from time to time. When it collides with other particles or is affected by other external fields, the motion state will change, and the transition radiation will also occur with the change of energy state. In atmospheric pressure DBD plasma cleaning machine, the study of plasma radiation is very important. On the one hand, the plasma radiation will release energy, resulting in energy loss of the plasma. On the other hand, for some gas radiation, photoionization can be produced, which effectively activates the reaction system. On the other hand, the plasma radiation contains a lot of internal information of the plasma. Through research or time analysis, such as radiation frequency, radiation intensity, etc., the density, temperature and particle state of the plasma can be diagnosed, and the information about the chemical reaction process can be obtained. Under normal circumstances, atmospheric pressure DBD plasma cleaning machine neutron radiation process mainly has three stages, namely excitation radiation, composite radiation and isotope radiation, and atmospheric pressure DBD plasma cleaning machine electron temperature is only 1~10eV, therefore, in fact, the main role is the excitation radiation and composite radiation. Excited states refer to the radiation emitted by a highly excited particle in an excited atom when it transitions to a low excited s

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Precautions for the use of low temperature plasma cleaning machine manufacturers

Precautions for the use of low temperature plasma cleaning machine manufacturers

In we will work on the surface layer of various raw materials to clean up, activated plasma injection, and the actual operation such as polymerization, application of low temperature plasma cleaning machine, and as a laboratory common high precision machinery and equipment, if the wrong operation, is likely to result in equipment damage or poor operating results, so today's cheng feng smart low-temperature plasma cleaning machine manufacturer to detailed introduces the common problems of low temperature plasma cleaning machine. 1, low temperature plasma cleaning machine in the operation of the switch power regulation is: communication frequency for 50/60 hz, 380 v / 220 v is also 3/12.5 kw, the actual use which provide according to the request, should be checked before starting the good access and inspection work of switch power supply, machinery and equipment operation should come out after a smooth running, and generally have a green display to show the long light system normal operation, if there is fault indicator light yellow, should stop to carry out the maintenance operation. 2, in the application of smart peak plasma cleaning machine, to bright red warning lamp, should pay attention to the machine equipment operation or vibrate, often long bright red warning lamp light, then you should hold the reset switch immediately observation equipment, if the machine is still abnormal, should immediately terminate machine equipment operation, then to carry out the common fault inspection, prevent equipment damage. 3, the application of low temperature plasma cleaning machine to clean up in time, and clean up be sure to first break switch power supply, then can open the inner chamber and the electrical control cabinet, and should pay attention to according to the standard stipulated in the instructions for cleaning, in addition, now a lot of low temperature plasma cleaning machine lumen are all hanging outside the annular electric level, and therefore not prone to the lining of the environmental pollution. Most described above several aspects is to pay attention to all kinds of low temperature plasma cleaning machine application problem, increasing along with the type of machinery and equipment, the actual operation personnel application read and master the operating instructions carefully before, a lot of low temperature plasma cleaning machine must also be practical operation staff after the hillock training. And with many low-temperature plasma machines and equipment just beginning to have the self-washing effect, the daily maintenance of the machines and equipment is becoming easier and easier.

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Plasma surface treatment equipment with increased adhesion

Plasma surface treatment equipment with increased adhesion

Low temperature plasma is to point to by air pressure low charge and discharge (glow, corona discharge, high frequency, etc.) caused by the ionized gas, under electrostatic field effect, free charge from electrostatic field in the gas kinetic energy, into a high energy electron devices, so this kind of material is how to make and so on ion surface treatment equipment can improve surface adhesion stick relay will explain to you. Such a high energy electron and gas in the molecular structure, molecular collision, the electron kinetic energy than molecular structure or molecules can provoke, will provoke molecular structure or provoke molecular oxygen free radical, cation, and have different kinetic energy radiation, they according to the ion bombardment or introducing polymer surface, cause off key or import functional group heterogeneity, which make the surface produces specificity, thus achieve the goal of modified materials. Surface active adhesion efficacy of plasma surface treatment equipment: 1. Under the effect of plasma, a part of specific molecules, oxygen free radicals and unsaturated bonds appeared on the surface of refractory plastics. This specific functional group contacted with the specific particles in the plasma, resulting in new specific functional groups. However, materials with specific functional groups will suffer from the effect of oxygen or the movement of molecular structure chains, which will cause the surface active functional groups to disappear. 2. When the plasma surface treatment equipment carries out surface modification of the material, the effect of the surface active particles on the surface molecular structure causes the unchain of the surface molecular structure, which leads to new specific functional groups such as oxygen free radicals and hydrocarbon groups, and then produces surface chemical crosslinking and polymerization. 3. Reactive plasma refers to that the specific particles in the plasma can produce chemical changes with the surface of the refractory raw materials, and then introduce a lot of functional groups, so that the surface of the material changes from non-polar to optical rotation, and the interfacial tension and viscosity are improved. 4. Under the high velocity impact of plasma, the chemical crosslinking of molecular structure unchaining occurs on the surface of the refractory material, which promotes the relative molecular weight of the surface molecular structure, improves the situation of the weak boundary layer, and has a positive effect on the improvement of the adhesion characteristics of the surface layer. The key reflecting plasma specific gases in plasma surface treatment equipment include 02, H2, NH3, CDA and other gases. Related plasma surface treatment equipment can improve the surface adhesion of the material is introduced to this, I hope to help you oh.

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Atmospheric pressure plasma cleaning machine factory equipment features

Atmospheric pressure plasma cleaning machine factory equipment features

Atmospheric pressure plasma cleaning machine surface treatment device, namely single electrode plasma processor, in the low temperature plasma produced by low temperature plasma, the ions and electrons can be up to 7 to 10 ev, can deal with polypropylene (PP), polyethylene (PE), polyvinyl chloride (PUL), propylene oxide (PTFE/Teflon), polystyrene (PS), ABS, P ester (PET), polyurethane (PUL), polyformaldehyde, Teflon (PTFE/Teflon), vinyl, nylon, rubber, glass, organic glass, all kinds of high polymer materials such as ABS and glass ceramics. Even for fluoroplastics, silicone rubber and other extremely difficult polymer materials, after treatment, its surface tension can reach 65~70 dyne/cm or even higher, so as to improve its adhesion. Due to its high ion and electron energy, the single electrode can be designed into various shapes in a wide range of RF low-temperature plasma, especially suitable for surface modification of a variety of 2D and 3D polymer materials. After low temperature plasma surface treatment, the surface of the material will undergo many physical and chemical changes, or etching phenomenon (hardly visible to the naked eye), or the formation of dense crosslinking layer, or the introduction of polar groups containing oxygen, respectively to improve the hydrophilicity, bonding, compatibility, biocompatibility and electrical properties. Atmospheric atmospheric pressure plasma cleaning machine technology is widely used in the field of surface modification because of its simple process, convenient operation, fast processing speed, good treatment effect, small environmental pollution, energy saving and other advantages. Thank you for your attention and support to Chengfeng Intelligent Plasma Curing Machine Factory, the company is committed to providing users with comprehensive surface performance treatment and testing solutions, independent research and development, production and sales of plasma equipment. Over the years, our team is committed to the surface performance research, adhere to the purpose of continuous innovation, as well as professional quality service, has won the unanimous recognition of the majority of users at home and abroad.

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The function of plasma surface processor

The function of plasma surface processor

Plasma Surface Processer RF low temperature plasma, a wide range of processing, can be designed into a variety of shapes, especially suitable for the material of the object surface modification. After low temperature plasma surface treatment, many physical and chemical changes will occur on the surface of the material, or etching phenomenon (hardly visible to the naked eye) or the introduction of oxygen-containing polar groups, respectively to improve the hydrophilicity, bonding, affinity. Plasma surface processor technology is widely used in the field of surface modification because of its advantages such as simple process, convenient operation, fast processing speed, good treatment effect, less environmental pollution and energy saving. For surface treatment of materials, the functions of plasma are basically as follows: 1, activity: significantly improve the wetting, the formation of active surface; 2, cleaning: remove dirt and oil, fine cleaning and static electricity; 3, coating: through the surface coating treatment, to provide functional surface, improve the surface adhesion ability, improve the reliability and durability of surface adhesion. 4, after the plasma surface treatment machine, whether it is a variety of polymer plastics, ceramics, glass, PVC, paper or metal materials, can get better surface energy. Adopts this kind of processing technology, can improve the product surface tension performance, more in line with the industry aspect to coat, the adhesive and so on the processing request.

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Plasma cleaning machine surface cleaning activation uniformity is improved

Plasma cleaning machine surface cleaning activation uniformity is improved

Plasma treatment of plastic surfaces can effectively pretreat surface activation before gluing, printing or painting. Similarly, ceramics, glass and other materials can also be treated by isoionization. Industrial oxygen is often used as a process gas for plasma treatment, hence the name: oxygen plasma. And the atmosphere is called atmospheric plasma. The effects may last only a few minutes or even months, depending on the type of material that needs to be treated with plasma. Plasma treatment is a surface modification technology which uses corona discharge to change the surface properties of materials. After corona treatment on the surface of the material/object, it will be guaranteed to bind to the printing ink, paint and binder. Its purpose is to optimize the bonding properties of polymer substrates. The low surface energy of polymer substrates usually results in poor adhesion of inks, glues and coatings, and the high surface energy of these materials. Corona treatment is widely used in plastic film, extrusion, automobile, medicine and other industries. In order to obtain adhesion, the surface energy of the matrix must be greater than or equal to the material surface energy of the polymer used. Surface energy of solid materials and requirements for polymer surface treatment. Plastic materials often need to be bonded to metal or other plastic materials, or simply printed on the plastic surface. For this to work, a liquid binder or ink must be used to wet the surface of the material. Corona treatment and plasma treatment are needed here. Lubricity depends on a special property of the surface: surface energy, often called surface tension. Surface energy: A unit of measurement of surface energy, like surface tension, expressed in mN/m. The surface energy of a solid substrate directly affects the wettability of the liquid on the surface. The wettability can be proved by measuring the contact Angle. The contact Angle is the Angle between the tangent line of the contact point and the horizontal plane of the solid surface. How to improve the uniformity of plasma cleaning machine: 1. Surface wettability; 2. The wettability of the surface can help us distinguish good and bad wettability; 3. With the increase of liquid surface tension, the surface energy of solid substrate increases, and the better its wettability is, the smaller the contact Angle is. 4. In order to form an appropriate combination of liquid and substrate surface, the substrate surface energy should be within the liquid tension range of about 2-10Mn /m; 5. When a droplet is installed on a smooth solid surface, the droplet will spread to the substrate. If it is completely wet, the contact Angle is almost zero. Conversely, if the wetting is local, the resulting contact Angle is balanced between 0 and 180 degrees.

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