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Plasma surface treatment of modified nanoparticles increases interfacial area in composite films

Plasma surface treatment of modified nanoparticles increases interfacial area in composite films

Plasma surface treatment of modified nanoparticles increases interfacial area in composite films: Due to its excellent dielectric properties, polyimide film has been widely used in variable frequency speed regulation traction motors as a basic insulating material for inter-turn insulation and ground insulation. Studies have shown that high-energy particles and thermal effects generated by corona discharge will damage the organic polymer structure and promote the degradation of polyimide, which is the fundamental cause of the insulation failure of inverter motors. Adding nanoparticles as fillers to polymers will bring special electrical properties to insulating materials, such as high dielectric constant, low loss, and corona resistance. key to performance. However, due to their large specific surface energy, nanoparticles will agglomerate in insulating materials, which greatly reduces the nano-effect. Surface modification of nanoparticles can improve the compatibility of nanoparticles with the matrix and reduce the amount of nanoparticles. Agglomeration to improve the interfacial area between nanoparticles and polymer matrix. Therefore, it is of great significance to study the influence mechanism of the surface modification of nanoparticles on the corona resistance of polyimide nanocomposite films. At present, chemical methods are generally used to modify the surface of nanoparticles, which can improve the electrical properties of nano-dielectrics to a certain extent, but scholars at home and abroad are still exploring methods to further improve the properties of insulating materials. In recent years, low temperature plasma technology has been widely used in the surface modification of polymer materials. Plasma treatment of nanoparticles only changes their surface properties without affecting their own properties, the treatment process is simple, no chemical solvent is required, and the treatment effect is good. Under the action of plasma, a large number of active groups such as hydroxyl (-OH) will be generated on the surface of the nanoparticles, which will react with the silanol bonds generated by the hydrolysis of the silane coupling agent to form hydrogen bonds. After plasma treatment of the surface of the nanoparticles, a strong absorption peak appeared there, indicating that a good interaction was formed between the silane coupling agent and the nanoparticles, and a large amount of the silane coupling agent was coated on the surface of the nanoparticles. The absorption peaks of the nanoparticles treated with plasma and those without plasma treatment were basically the same, indicating that the plasma treatment did not change the chemical bonds of the nanoparticles themselves. Using plasma to treat the surface of nanoparticles can effectively improve the coupling effect of nanoparticles and silane coupling agent, thereby improving the dispersion characteristics of nanoparticles in polyimide composite films and increasing the interface between nanoparticles and polymer matrix area. The adhesive layer is closely connected with the organic and inorganic two phases through the silane coupling agent, and has strong interaction, so the corona resistance is strong. In the boundary layer, the interaction between polymer chains and the bonding layer and inorganic nanoparticles is formed, and the corona resistance is slightly weaker than that of the bonding layer. The loose layer is an interface with weak interaction with the boundary layer, and its corona resistance is weak. When a partial discharge occurs on the surface of the material, the surface of the polymer in the area with high electric field strength is first damaged. When the discharge proceeds to the loose layer, the layer is damaged by the discharge because of its poor corona resistance. When the discharge is further deepened, when the charge enters the boundary layer or the bonding layer, due to the strong corona resistance formed by the strong interaction in the interface area, the discharge effect cannot further damage the area, and instead, it is changed along the interface area to " ” shape development, extending the discharge path, thereby improving the corona resistance of the polymer material. After the nanoparticles are plasma treated, the interface area in the composite film is greatly increased, so that the dielectric double-layer structure in the interface area overlaps, the electrical conductivity of the film is improved, and a conductive channel is formed inside the film along the overlapping area. The dissipation of electric charge inside the film is promoted, the electric field inside the film is improved, and the corona resistance life of the film is improved.

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How is the use of plasma cleaners in the electronic screen industry?

How is the use of plasma cleaners in the electronic screen industry?

How is the use of plasma cleaners in the electronic screen industry? Modern touch screens, LCD monitors and TV screens place high demands on the production process, because plastic parts must be treated with highly transparent scratch-resistant and anti-static coatings before bonding and assembly. Removing the impurities on the surface of the mobile phone screen and roughening the surface is conducive to improving the adhesion of the mobile phone screen coating and making it stick more firmly. Our conventional sandpaper polishing is obviously not suitable for use on the mobile phone screen, because it will Scratching the screen of the mobile phone will affect the use. Is there a way to remove the dirt on the surface of the screen and improve the roughness of the surface without affecting its aesthetics? The plasma treatment process of the plasma cleaning machine can be very solve this problem well. First of all, the plasma generated by the plasma surface cleaning machine contains electrons, ions and active free radicals. These particles are relatively easy to react with organic pollutants on the surface of the material to generate volatile and harmless gases, such as CO2 and water vapor. The whole reaction The process time is short, the efficiency is high, and the treatment effect is good. Secondly, when the plasma-treated mobile phone screen is being coated or sprayed, the active components in the plasma will quickly form chemical bonds with the material and the sprayed material. This bonding can greatly improve the strength of intermolecular bonding and make The film layer is difficult to loosen.        The COG assembly process of LCD is to mount the bare chip IC on the TO glass, and use the compression and deformation of the gold ball to make the pins on the ITO glass and the pins on the IC conduct. Due to the continuous development of fine line technology, it has developed to produce products with a pitch of 20um and a line of 10um. The production and assembly of these fine circuit electronic products have high requirements on the surface cleanliness of the TO glass, requiring the products to have good solderability, firm soldering, and no organic and inorganic substances remaining on the ITO glass to prevent the TO electrode terminals from being connected to the ITO glass. The continuity of the IC BUMP, therefore, the cleaning of the TO glass is very important. In the current ITO glass cleaning process, everyone is trying to use various cleaning agents (alcohol cleaning, cotton swab + lemonade cleaning) for cleaning, but due to the introduction of cleaning agents, it will lead to the introduction of cleaning agents. Therefore, exploring new cleaning methods has become the direction of efforts of various manufacturers. Through step-by-step tests, the principle of plasma cleaning is used to clean the surface of ITO glass, which is a more effective cleaning method.         In plasma cleaning of liquid crystal glass, the activated gas used is oxygen plasma, which removes oily dirt and organic contaminant particles, because oxygen plasma oxidizes organic matter and forms gaseous discharge. Its only problem is that it needs to add a static elimination device after removing the particles, and its cleaning process is as follows: Air blowing - oxygen plasma - in addition to static electricity.            The electronic industry's requirement for a high degree of automation requires the adoption of an online surface treatment process with high reliability, high production efficiency and treatment effect. The ultra-fine atmospheric plasma cleaning and plasma activation provided by the plasma process brings effective solutions to the electronics industry. Plasma treatment of the plastic viewing window section prior to antistatic and anti-scratch spraying on spray equipment. Due to the use of plasma cleaning technology, the surface energy of the material is increased, so the coating distribution is more uniform, the plasma cleaning machine not only creates an impeccable product appearance, but also greatly reduces the scrap rate in the production process.

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You are familiar with the use of plasma in these fields and the future of low temperature plasma

You are familiar with the use of plasma in these fields and the future of low temperature plasma

You are familiar with the use of plasma in these fields and the future of low temperature plasma： With the development of technology, it is not just something we are usually familiar with. Plasma has a wide range of applications in science, economy, medicine and other fields, and plasma is one of them. Plasma, like cryogenics, is a term for a state of matter. There are three types of substances: solid, liquid, and gas. Except for solid, liquid, and gas, other substances are now called plasma. If the gas is heated to an ultra-high pressure, it produces a mixture of various ions, electrons, and free radicals, known as plasma. Its variety and composition are complex, including various polymer plastics, metals, semiconductors, rubber, silicone, leather, circuit boards, etc. Such materials have poor surface properties and are prone to problems such as coating, bonding, and printing. In order to facilitate painting and printing, manual grinding was generally used in the past, which was not efficient and seriously affected the beauty of the interior. It will also open the glue. The cost of using hot melt glue and other high-grade glues is high, and it will also affect the reputation of the entire car brand. However, the application of plasma has been widely known. The plasma cleaning machine for automobile interiors produced by plasma treatment technology can improve the resistance to printing, abrasion, bonding and other issues. What are the car interiors? , steering wheel, instrument panel, seat system, air bag, seat belt, carpet, GPS, DVD, sensors, antenna, etc. The product has the characteristics of strong adaptability, energy saving, low energy consumption, strong equipment matching ability, safety and reliability. Therefore, it has been widely used in various aspects and is well-known by people from all walks of life. In industrial production, plasmas are used to create new materials with exceptionally superior properties. Materials such as semiconductors can also be used to sharpen knives, molds, etc., and sometimes to refine metals. Indeed, in industry, plasma technology is also used to make various tools. In the field of chemistry, plasmas are used to develop new chemicals and chemical processes. Sometimes, plasma technology is also used to treat hazardous waste. In the medical field, plasma is used for a variety of safe and adaptable procedures. It can not only ensure the effective operation of the operation, but also reduce the worry of the patient and reduce the risk of the scalpel. In addition, plasma equipment can also be used to make low-temperature plasma equipment, such as low-temperature plasma organic waste gas purifiers. Low temperature plasma technology can be used in various fields, not only in chemical and industrial fields, but also in a wide range of fields. The emergence of low-temperature plasma has solved many problems faced by people and made great contributions to people's lives.

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Plasma stripping cleaning machine stripping etching process processing glass cover cleaning

Plasma stripping cleaning machine stripping etching process processing glass cover cleaning

Plasma stripping cleaning machine stripping etching process processing glass cover cleaning： Today, when 5G communication technology is fully moving towards the 5G era, high-frequency 5G signals impose strict requirements on the signal transmittance of mobile phone materials. China's 5G commercial network will be put into operation in many cities in China. Since metal casings will block 5G signals, manufacturers are switching to non-metallic materials such as plastic, glass, ceramics, sapphire and other non-metallic materials to make mobile phone casings. In order to make the shell more beautiful and more powerful, various coating processes have followed the trend, and the manufacturer's stripping requirements for plasma stripping cleaning machines are becoming more and more strict. Glass cover coating, also known as glass cover spraying, is suitable for the 5G industry, covering mobile phone cover coating, glass cover, display coating, protective layer, optical material coating, etc. Like makeup, paint can be used both to change your image and to make yourself more beautiful. It can make the glass cover and bottom plate more beautiful, and also has the functions of anti-fingerprint, anti-glare, anti-ultraviolet, acid and alkali resistance, and anti-oxidation. For the glass case of the mobile phone, in order to realize the function and decorate the glass case on the front and back of the mobile phone, a variety of coating processes are used. Coating processing is a very delicate process, which has high requirements on the cleanliness of the substrate surface. Any tiny dirt, oil stains, fingerprints, water vapor, solid particles, etc., will cause trachoma, discoloration, and oil spots on the coating. and other adverse phenomena. When the quality of the coating is not good, it is necessary to reprocess the defective coating by stripping. At present, the plasma stripping cleaning machine process and stripping solution are still the mainstream of stripping. Compared with the stripping solution, the plasma etching stripping process has its advantages mainly in three aspects, namely the advantages of plasma surface treatment. Plasma stripping cleaning machine stripping is an environmentally friendly process, without any waste gas, waste liquid and other pollutants. Compared with expensive stripping solutions, stripping of plasma processors can only consume electricity. A single plasma surface treatment machine, once per hour, greatly reduces the cost. The stripping of the plasma stripping cleaning machine is through the plasma glow reaction to ensure that the high-density, low-temperature plasma obtains a better surface activation effect. Clean the surface organic matter, resin, dust, oil, impurities, etc., and increase the surface energy. The surface of the material is roughened by modification, the surface protrusion after etching is increased, and the surface area is increased. The oxygen-containing polar groups, such as hydroxyl, carboxyl and other active molecules are introduced. A plasma cleaning machine is used for strip surface treatment, which can effectively remove defective coatings. It is used for the rework of defective industrial coatings such as glass cover plates, display touch screens, protective sheets, optical materials, electronic circuits, etc. For spraying processes such as AF, AS, AG, AR, etc., a plasma pretreatment device (generally low temperature and atmospheric pressure rotary spraying, etc.) is used to perform fine pretreatment cleaning, etching and activation on the surface of the substrate, and a very thin high tension can be obtained. The surface of the coating is conducive to the strong bonding force of the spraying liquid and the uniform thickness. For spraying processes such as AF, AS, AG, AR, etc., a plasma pretreatment device (generally low temperature and atmospheric pressure rotary spraying, etc.) is used to perform fine pretreatment cleaning, etching and activation on the surface of the substrate, and a very thin high tension can be obtained. The surface of the coating is conducive to the strong bonding force of the spraying liquid and the uniform thickness. The plasma surface treatment machine for stripping is a product equipped with a rotary nozzle plasma surface treatment machine, which needs to be stripped on the assembly line through sliding table, reciprocating motion, cleaning and stripping. According to production capacity requirements, customers can customize assembly lines of different specifications, with 1, 2, 4 plasmas and other quantities for a single machine. AF----Anti-fingerprint is anti-fingerprint in Chinese. AF plasma coating machine is also known as AF spraying machine, AF plasma spraying machine, anti-fingerprint and so on. Anti-Smudge means anti-fouling in Chinese. AS plasma coating machine is also known as AS plasma coating machine, oil-proof plasma coating machine, spraying machine, etc. AG----anti-glare, Chinese called anti-glare, also called AG pla

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The application of plasma automatic cleaning machine processing circuit board LED bonding packaging technology

The application of plasma automatic cleaning machine processing circuit board LED bonding packaging technology

The application of plasma automatic cleaning machine processing circuit board LED bonding packaging technology: Printed circuit boards, printed boards, PCBs, etc. are also called printed boards. The printed circuit board is prone to problems such as unclear printing, blurred printing, easy falling off of ink or non-staining of the printed circuit board during the printing process. The main reasons for this phenomenon are: first, the green paint surface of the circuit board is not clean, with oil stains, sweat stains, particles and other dirt; second, the ink quality is poor, and the amount of ink is insufficient, which has little effect. Third, the squeegee is not sharp enough or is blurred due to improper operation during the screen printing process. LED is more and more favored by people because of its high luminous efficiency, low power consumption, health and environmental protection (no ultraviolet, infrared, no radiation), protection of eyesight, long life and other advantages, and is known as the 21st century. new light source. In the packaging process LEDLED will produce pollution and oxidation. The bonding colloid between the lampshade and the lamp holder is not strong enough, and there are tiny gaps, air enters through the gap, and gradually causes the surface of the electrode to oxidize, resulting in the death of the lamp holder. The application of plasma automatic cleaning machine cleaning technology to clean LED packaging products does not pollute the environment, environmental protection and no pollution, which can solve this problem for LED packaging manufacturers. To solve the above problems. Mainly consider the following issues: whether the screen frame is in good condition, whether the image is clear, whether the ink scraping is correct, whether the screen frame is installed smoothly, whether the pressure is uniform, whether the screen frame height is balanced, and whether the ink is scraped and printed. Is the pressure appropriate. After the above conditions are met, the plasma automatic cleaning machine can be used to remove glue for the manufacturing process of soft and hard boards, high-frequency PTFE, multi-layer soft boards, etc. cleaning etc. It can solve the problem of unclear printing in PCB production. There are two main reasons for the weak bonding of fluorescent diodes. In the production process, the surface will inevitably be contaminated with many pollutants (such as organic substances, oxides, epoxy resin, particles, etc.), thus affecting the bonding effect. Light-emitting diodes are mainly made of difficult-to-stick plastics such as polypropylene and PE. This kind of plastic has the characteristics of low surface energy, poor wettability, high crystallinity, good non-polarity of molecular chain and fragile edge. In the bonding and packaging process, it is easy to cause the phenomenon of loose glue opening. Plasma cleaning of electronic parts: Because the plasma is positive and negative ions, the potential value of the plasma cleaning machine for electronic parts is zero. Avoid short circuit of circuit boards and damage to electronic equipment. Plasma automatic cleaning machine can provide ultra-precise circuit board cleaning, destaticization, dust removal, area activated plasma, and solve the problem of poor coating adhesion performance. Applying an ultra-thin, long-term stable selective anti-corrosion coating on the surface of electronic components can prevent electronic components from being corroded or damaged in extreme weather conditions. The plasma automatic cleaning machine equipment properly solves these two problems during the LED lamp plasma cleaning process. The plasma automatic cleaning machine acts on the surface of the material, and the positive and negative plasma generated can realize the physical and chemical cleaning of the surface of the LED material. Removal of contaminants down to the nanometer level, can remove surface contaminants such as organics, oxides, epoxy, particles, etc. When processing PP/PE and other plastics, the plasma generated by the automatic plasma cleaning machine pretreats the parts that need to be bonded through surface activation, surface corrosion, surface grafting, surface polymerization, etc., so that the non-polar materials are activated. This ensures reliable bonding and long-term sealing.

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The 10 major functions of plasma surface treatment equipment in the manufacture of auto parts

The 10 major functions of plasma surface treatment equipment in the manufacture of auto parts

The 10 major functions of plasma surface treatment equipment in the manufacture of auto parts: In recent years, plastics have been used more and more in the automobile manufacturing industry. At present, the amount of plastics used by well-known foreign automobile manufacturers generally accounts for 10-15% of automobile materials, and some even exceed 20%. Whether it is automotive exterior parts, interior parts, car headlights, weather strips, or functional and structural parts, the shadow of plastic products can be seen everywhere. The continuous improvement of the hardness, strength and tensile properties of industrial plastics has promoted the development of the automotive plasticization industry. Using plastic instead of steel can greatly reduce the weight of the car itself, thereby reducing fuel usage and lowering emission standards. Before painting, the plasma surface treatment machine equipment can perform surface activation cleaning on the protective rod of PP/EPDM composite before painting. As an independent component, the shock absorber not only beautifies the appearance of the car, but also has an important impact on the safety protection and aerodynamic performance of the car. In order to reduce fuel consumption and fuel costs and achieve low emission standards, lightweight, dense and corrosion-resistant plastic materials have gradually become the main materials for automobile bumpers, and the amount of plastic materials has increased year by year. To ensure the internal and external quality of the product, the surface treatment of plastic needs to be better than that of steel. Through a variety of data comparisons, the plasma surface treatment machine equipment has a good treatment effect, can be processed online, has low cost, energy saving and environmental protection, and is currently an ideal treatment process in this field.

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