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The application of plasma plasma cleaning machine in the plastic and rubber products industry and the principle of degumming

The application of plasma plasma cleaning machine in the plastic and rubber products industry and the principle of degumming

The application of plasma cleaning machine in the plastic and rubber products industry and the principle of degumming: As consumers have higher and higher requirements for products, diversification and rapid change of plastic and rubber products are the future trend, and the requirements for craftsmanship are bound to become higher and higher. We have found in industrial applications that some rubber and plastic parts have difficulty in bonding when they are connected to the surface. This is because polypropylene, PTFE and other rubber and plastic materials are printed, bonded, and bonded without surface treatment. The effect of coating is very poor, or even impossible. At this time, the plasma technology of plasma plasma cleaner is used for surface treatment of these materials. Under the bombardment of high-speed and high-energy plasma, the surface of these materials is maximized, and an active layer is formed on the surface of the material, so that rubber and plastic can be Perform printing, bonding, coating and other operations. The application of plasma technology to the surface treatment of rubber and plastic has simple operation, no harmful substances before and after treatment, good treatment effect, high efficiency and low operating cost. Plasma plasma cleaners are widely used in the plastics and rubber industries, which are mainly reflected in the following aspects: 1. Increase ink adhesion and improve printing quality Plasma plasma cleaning machine Plasma technology is used in various common printing processes, such as pad printing, silk screen printing, and offset printing. For the surface of materials that are difficult to print, such as polypropylene, polyethylene, polyamide, polycarbonate, glass, and metal, only by using plasma pretreatment technology, solvent-free printing inks can be firmly attached for a long time. 2. Improve the bonding strength of the product In two-component injection molding and two-component extrusion molding operations, plasma treatment technology is used to achieve surface activation, which can bond two incompatible materials together. It is mainly to combine soft-touch materials, such as silicone rubber or thermoplastic polyurethane (TPU), and hard materials, such as high-strength and low-cost polypropylene materials. 3. Increase the bonding strength If there is no plasma surface treatment technology, many materials, such as polypropylene, polyetheretherketone or polyoxymethylene, cannot be bonded at all, or the bonding effect is poor. How to achieve high-strength, long-lasting and stable bonding effects of glass, metal, ceramics and plastics is a special challenge facing the manufacturing industry. The surface modification of the material by plasma surface treatment technology and the fine cleaning of the surface can make the materials to be combined have better bonding ability and obtain higher bonding strength. We talked about the three aspects of plasma plasma cleaning machine in the plastic and rubber products industry above. In fact, there are many other aspects. If you want to know more, you can consult our customer service hotline, and we will answer them one by one. So now let's talk about the principle of plasma degumming. The principle of plasma degumming of plasma plasma cleaning machine is called plasma degumming method, and the degumming gas is oxygen. Its working principle is to put the silicon wafer in a vacuum reaction system, pass in a small amount of oxygen, add 1500 V high voltage, and a high-frequency signal generator generates a high-frequency signal to form a strong electromagnetic field in the quartz tube to ionize the oxygen and form oxygen ions , Activated oxygen atoms, oxygen molecules and electrons and other mixture of plasma glow column. Activated oxygen (active atomic oxygen) can quickly oxidize the polyimide film into a volatile gas, which is pumped away by a mechanical pump, thus removing the polyimide film on the silicon wafer. The advantages of plasma degumming are simple degumming operation, high degumming efficiency, clean and smooth surface, no scratches, low cost, and environmental protection. The dielectric plasma etching equipment generally uses a capacitively coupled plasma parallel plate reactor. In the parallel electrode reactor, the reactive ion etching cavity adopts an asymmetric design with a small cathode area and a large anode area, and the etched object is placed on the electrode with a smaller area. Under the action of the thermal motion generated by the radio frequency power supply, the negatively charged free electrons reach the cathode quickly due to their small mass and fast moving speed; while the positive ions cannot reach the cathode in the same time due to their large mass and slow speed, thus making the cathode A negatively charged sheath is formed nearby. Under the acceleration of the sheath, the positive ions bombard the surface of the silicon wafer vertically, accelerating the chemical reaction on

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In the early days, what surface treatment methods would be used for plastic materials without plasma flame machine

In the early days, what surface treatment methods would be used for plastic materials without plasma flame machine

In the early days, what surface treatment methods would be used for plastic materials without plasma flame machine: In terms of materials, if the material itself has no polarity, the surface tension of the material will be very low, and printing, ink, bonding, coating and other processes are difficult to complete, or the actual effect is poor. Plastic material is such a material with low surface tension. Everyone knows that surface treatment with a plasma flame machine is helpful. Do you know how to solve the problem of printing and printing plastic materials before the popularization of plasma flame machines? What about process issues such as bonding? In the early stage of the industry, due to the limitations of materials and processes, rubber and plastic products are generally accommodating materials in the production process. Which materials can meet the requirements of spraying, bonding and other processes will give priority to which materials are used. Over time , The problem of material cost gradually emerged, prompting manufacturers to start looking for rubber and plastic materials with better performance and lower cost, as well as suitable material surface treatment methods. Earlier, the non-plasma flame machine's surface treatment method was a simple grinding machine and an environmentally friendly water-based coating treatment method. The actual effect that can be achieved is very limited, and it is still difficult to get rid of the dependence on the performance of the material itself. Since then, the fluorination treatment method has been selected. The treatment effect of this surface treatment method is significantly improved, but it will generate a large amount of harmful gas and increase the input cost of waste gas treatment. Although the problem of the process effect of fluorination treatment has been solved, the production Cost and safety and environmental protection still exist. Chengfeng Zhizhi has focused on the research and development of plasma flame machines for 20 years. If you want to know more product details or have questions about the use of equipment, please click on Chengfeng Zhizhi online customer service, waiting for your call!

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What is the role of plasma equipment parameters Langmuir probe diagnosi

What is the role of plasma equipment parameters Langmuir probe diagnosi

What is the role of plasma plasma equipment parameters Langmuir probe diagnosis: There are many factors that affect the processing effect of plasma plasma equipment. Plasma parameters are an important factor in the influencing factors. Therefore, it can be understood that the detection and diagnosis of plasma parameters of plasma plasma equipment is very important. There are many methods for measuring and diagnosing plasma parameters. The Langmuir probe method is a common diagnostic method that has been used so far. So what is this Langmuir probe method? The Langmuir probe method essentially uses an electrostatic probe to insert a metal probe into the plasma and apply a positive or negative bias to it to collect electrons or ion currents. Like other electrodes, a sheath is formed around the probe, and the area is usually small, so under appropriate conditions, the probe can only locally interfere with the plasma of the plasma plasma equipment. For the actual parameter diagnosis, the bias voltage of the Langmuir probe relative to the ground is VB, and the plasma potential is φp. When the detection voltage Vb=φp, the detection is at the same potential as the plasma. At this time, the current it collects from the mobile electrons mainly comes from the mobile electrons. With the increase of Vb and greater than φp, the current will saturate and reach the electronic saturation current value, but due to the increase of voltage, the current will also increase with the increase of the effective collection area of ​​the probe, which is related to the geometry of the probe related. However, when the voltage of the probe changes, its effective collection area will also change, resulting in a change in the ion saturation current. Because the mass of ions is much greater than that of electrons, the saturation current of ions is much smaller than that of electrons. Chengfeng Zhizao has focused on the research and development of plasma plasma equipment for 20 years. If you want to know more product details or have questions about the use of the equipment, please click on the Chengfeng Zhizao online customer service, waiting for your call!

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application areas of plasma plasma flame treatment machine

application areas of plasma plasma flame treatment machine

application areas of plasma plasma flame treatment machine: The plasma plasma flame treatment machine is mainly suitable for surface modification treatment of various materials: surface cleaning, surface activation, surface etching, surface grafting, surface deposition, surface polymerization and plasma-assisted chemical vapor deposition. Surface modification: paper bonding, plastic bonding, metal soldering, surface treatment before electroplating; Surface activation: surface modification of biological materials, surface treatment before printing, coating or bonding, such as surface treatment of textiles; Surface etching: micro-processing of silicon, surface etching treatment in solar energy fields such as glass, and surface etching treatment of medical utensils; Surface grafting: the generation of specific groups on the surface of the material and the fixation of surface activation; Surface deposition: plasma polymerization deposition of hydrophobic or hydrophilic layer; Plasma plasma flame treatment machine is widely used in metal, microelectronics, polymers, biological functional materials, low temperature sterilization and pollution control and other fields. It is the ideal equipment for plasma surface treatment of enterprises and research institutes. 1. Application of plasma plasma flame processor in microelectronic packaging In the production process of microelectronic packaging, various surface contaminations, including organic matter, epoxy resin, photoresist and solder, metal salt, etc., will be formed due to various fingerprints, fluxes, cross-contamination, natural oxidation, devices and materials. These stains will have a significant impact on the packaging production process and quality. The use of plasma cleaning machine can easily remove the contamination formed in the molecular-level production process to ensure that atoms and atoms are in close contact with the surface of the workpiece, thereby effectively improving the bonding strength, improving the quality of wafer bonding, and reducing the leakage rate , Improve packaging performance, output and component reliability. The choice of the cleaning process of plasma plasma flame treatment machine for electronic packaging depends on the requirements of subsequent processes on the surface of the material, the original characteristic chemical composition and the nature of the contaminants on the surface of the material. Commonly used in plasma cleaning gas argon, oxygen, hydrogen, carbon tetrafluoride and their mixed gases. Table, choice of plasma cleaning technology application. Small silver glue village bottom: Pollutants will cause the colloidal silver to be spherical, which is not conducive to chip sticking, and it is easy to stab the chip manual. The use of radio frequency plasma cleaning can greatly improve the surface roughness and hydrophilicity, which is beneficial to the silver colloid and Tiles are pasted with chips, and the amount of use at the same time can save silver glue and reduce costs. Wire bonding: Before the chip is bonded to the substrate and after high temperature curing, the existing contaminants may contain microparticles and oxides. The physical and chemical reactions of these contaminants lead and the soldering between the chip and the substrate is incomplete, and the bonding strength is poor. , Adhesion is not enough. Before wire bonding, plasma cleaning by plasma plasma flame treatment machine can significantly improve the surface activity and increase the bonding strength and tensile strength of the bonding wire. The pressure on the welding head can be low (when there are contaminants, the welding head penetrates the contaminants, more pressure is required), and in some cases, the bonding temperature can also be lowered, thereby increasing production and reducing costs. Sealing glue: In the epoxy resin process, pollutants will cause high foaming rate, resulting in low product quality and service life, so in order to avoid the formation of sealing foam, we also pay attention to it. After the radio frequency plasma cleaning, the chip and the substrate will be more closely combined with the colloid, the foam formed will be greatly reduced, and the heat dissipation rate and light emissivity will be significantly improved. ⒉The mechanism of plasma plasma flame treatment machine in rubber and plastic industry products I have found in industrial applications that some rubber and plastic parts have difficulty in bonding when they are connected to the surface. This is because polypropylene, PTFE and other rubber and plastic materials have no polarity. These materials have not undergone surface treatment. The effect of printing, bonding, coating, etc. in the state of being very poor, or even impossible. Some processes use some chemicals to treat these stolen plastic surfaces, which can change the bonding effect of the material, but this method is not easy to master. The chemicals themselves are toxic, the operation is very

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Research on cleaning and treating surface impurities of SERS active gold island membrane by low-temperature plasma equipment

Research on cleaning and treating surface impurities of SERS active gold island membrane by low-temperature plasma equipment

Research on cleaning and treating surface impurities of SERS active gold island membrane by low-temperature plasma equipment: The vacuum evaporation method forms a gold island film with surface-enhanced Raman activity on the surface of the silicon wafer. Raman spectroscopy found that the surface of the gold island film has amorphous carbon contaminants. By comparing the Raman spectra of different cleaning methods of low-temperature plasma equipment, it can be proved that cleaning the gold island film with oxygen plasma can effectively remove impurities on the gold surface, and the surface-enhanced Raman activity of the gold island film does not change significantly before and after cleaning.  Raman spectroscopy can provide various normal vibrational frequencies and related vibrational energy levels inside molecules, and is an effective method for studying the molecular structure of substances. Its great advantage is that there are no special requirements for sample preparation, and the sample can be measured in solution. Surface enhanced Raman spectroscopy (SERS) is an analysis technique that combines Raman spectroscopy and surface enhancement phenomena. The emergence of this low-temperature plasma equipment technology has greatly increased the detection sensitivity of Raman spectroscopy, even reaching the level of single-molecule detection. At present, SERS has been widely used in materials science, surface science, biomedicine and other fields, and it is one of the most sensitive spectroscopy techniques for studying surface/interface reactions. The preparation of a metal surface with nano-scale roughness is the primary condition for obtaining the SERS effect. At present, people mainly carry out SERS research on metal sol, metal island film and roughened metal electrode surface. The preparation method of the metal island film is mainly the vacuum evaporation method of low-temperature plasma equipment. The method has the advantages of accurate control of preparation conditions, relatively simple equipment, and easy operation. One of the main disadvantages is the pollution on the surface of the prepared metal island film. Due to the presence of a small amount of organic impurities in the vacuum chamber of the low-temperature plasma equipment during the preparation process, these impurities tend to be adsorbed on the surface of the substrate, resulting in strong and broad characteristic peaks in the obtained spectrum, which can sometimes seriously interfere with the true signal of the measured molecule. Many researchers have recognized this problem and have made various attempts to remove the surface impurities of the SERS substrate. Use CN~ with strong adsorption capacity to remove the contaminated silver surface layer; use alkanethiol to replace and adsorb the contaminants on the metal surface; select Cl i to remove impurities on the surface of the silver particles; chemical adsorption of iodide ions The impurity removal method of electrochemical oxidation: first use low-temperature plasma equipment plasma cleaning, and then use acetic acid soaking method to remove impurities on the surface of self-assembled gold particles, etc. It can be seen that for different SERS bases and experimental conditions, the methods for removing impurities are also different. The principle of plasma cleaning of oxygen low temperature plasma equipment is to generate carbon dioxide, carbon monoxide and water and other volatile substances through the reaction of oxygen free radicals with organic pollutants on the surface of the substrate, and then the vacuum pump sucks these volatile substances away. A layer of gold island film is vacuum-evaporated on the surface of the silicon wafer. The island membrane has a good surface enhancement effect, and the enhancement factor of the pyridine molecule is 10. The surface contamination of the gold island membrane was removed by oxygen ion cleaning, and the spectrum test showed that the surface enhancement characteristics of the gold island membrane did not change significantly before and after cleaning. Plasma cleaning with oxygen low-temperature plasma equipment can remove most of the amorphous carbon impurities on the surface of the gold island film formed by vacuum evaporation; the cleaned substrate can better retain the SERS activity for other molecules; the SERS signal attenuation is less after cleaning . Therefore, oxygen plasma cleaning is an effective way to remove impurities on the surface of the gold island film.

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How to improve the plasma plasma cleaner to make it better after the discharge problem in the treatment chamber occurs

How to improve the plasma plasma cleaner to make it better after the discharge problem in the treatment chamber occurs

How to improve the plasma plasma cleaner to make it better after the discharge problem in the treatment chamber occurs: The plasma plasma cleaner manufactured by Chengfeng Zhizhi introduces you to the ideal PEF plasma treatment process. The electric field in the treatment room is evenly distributed, which can greatly reduce the influence of the treatment process on the raw materials. In the actual PEF plasma processing equipment, when the electric field strength is high, the insulation of the liquid raw materials in the processing chamber is easily destroyed and discharges. In short, on the one hand, the gas dissolved in the liquid, due to the temperature rise or continuous flow during processing, is easy to overflow in the processing area and form bubbles. The dielectric constant of the bubbles is much smaller than that of the liquid. Therefore, the pulse voltage is basically applied to the bubbles. , Resulting in bubble breakdown. In addition, due to the improper design of the electrode in the treatment chamber of the plasma plasma cleaner, the surface of the electrode produced non-smooth tiny metal bumps, resulting in uneven electric field distribution in the treatment area, and local strong distortions turned into concentrated currents, which caused the local liquid to heat and vaporize. Air bubbles cause liquid insulation breakdown. In addition, the liquid raw material contains solid particles, which are prone to discharge at the interface between the liquid and the solid particles, or when its electrical conductivity is high, the leakage current will increase through the passage, the heat phenomenon in the solution will increase, and the breakdown probability of the processing chamber will increase. Dealing with emissions during the indoor use stage is currently an important issue that is widely faced. When the pressure in the treatment chamber is constant, the appearance of bubbles in the liquid in the treatment chamber will have a significant impact on the electric field distribution in the treatment chamber, which increases the possibility of discharge breakdown in the treatment chamber of the plasma plasma cleaner. If a bubble with a diameter greater than 1mm is located in a processing chamber with a spacing of less than 3mm, its dielectric breakdown threshold voltage is much greater than a bubble with a diameter of less than 0.5mm in a processing chamber with a spacing greater than 5mm. In order to reduce the dead zone of the flow velocity and the local high temperature zone, and reduce the possibility of generating bubbles on the flow path, the structure of the plasma plasma cleaning machine processing chamber should be adjusted, or the tubular electrode of the same field processing chamber should be replaced with a mesh electrode, and in the same field. An insulating layer is added between the electrodes of the field treatment chamber to reduce the possibility of breakdown in the treatment chamber. Chengfeng Zhizhi has focused on the research and development of plasma cleaning machines for 20 years. If you want to know more product details or have questions about the use of the equipment, please click on Chengfeng Zhizhi online customer service, waiting for your call!

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