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Research on Improving Hydrophilicity of Polyimide Plasma Treatment

Research on Improving Hydrophilicity of Polyimide Plasma Treatment

Research on improving hydrophilicity of polyimide plasma treatment:         Polyimide (P84) fiber has good mechanical properties, radiation resistance, thermal stability and non-combustibility, and can be widely used in some special environments, such as fire protection, electronic aerospace and industrial production. Because polyimide (P84) fiber is limited by its surface structure chemical inertness and surface energy, its poor adhesion affects its reinforcing effect in composite materials. Low-temperature plasma surface modification methods can be used to overcome this shortcoming of fibers.         Plasma is a gas composed of high-energy charged particles and neutral particles. Plasma surface modification only occurs on the surface of the material and does not affect the body of the fiber, so that the fiber can fully improve its surface performance while maintaining its own excellent overall performance.         Through low-temperature plasma surface treatment, the surface of the material undergoes multiple physical and chemical changes, or is etched and rough, or forms a dense cross-linked layer, or introduces oxygen-containing polar groups to make the hydrophilic adhesiveness dyeable Performance, biocompatibility and electrical properties have been improved.         Comparing the surface of the P84 fiber before and after the treatment, it is found that the surface of the untreated fiber is smooth, while pits appear on the surface of the P84 fiber after the low-temperature plasma treatment. This is because particles such as ions and electrons excited molecules or atoms in the plasma sputter and etch the fiber surface. The chemically active substances in the plasma cause oxidative degradation and other reactions on the surface of the material to cause chemical micro-etching.         Under the simultaneous action of the two etchings, pits are formed on the surface of the P84 fiber, and convex deposits are generated at the same time, thus increasing the micro-roughness of the fiber surface. After low-temperature plasma modification, the relative content of N and O elements on the surface of P84 fibers increased significantly. The relative content of C element decreased, and the O/C ratio rose from 25.79% to 27.32%, which indicated that oxygen-containing groups were added on the fiber surface.         Plasma treatment produces unsaturated bonds and free radicals on the surface of polyimide (P84) fibers. These unsaturated bonds and free radicals interact with oxygen in the air to generate new oxygen-containing polar groups, thereby making P84 fibers The chemical composition of the surface changes.         After plasma treatment, the surface of polyimide (P84) fiber undergoes oxidation reaction, and hydrophilic polar groups are introduced into the fiber surface. Enhance the moisture absorption and moisture conduction performance. This is because when low-temperature plasma particles bombard the surface of the polyimide (P84) fiber, the surface will undergo processes such as etching, cross-linking and oxidation, thereby introducing a large number of hydrophilic groups. The presence of hydrophilic groups greatly enhances the moisture absorption capacity of the fiber surface; at the same time, the surface area of ​​the polyimide (P84) fiber after low-temperature plasma treatment increases the surface area, which further improves the moisture absorption and moisture conduction performance.

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Vacuum low temperature plasma processor technology provides activation effect in flexible materials

Vacuum low temperature plasma processor technology provides activation effect in flexible materials

        The vacuum low temperature plasma processor technology provides an excellent surface activation effect on flexible materials. It can be used for plasma cleaning before wire bonding to provide a cleaner bonding surface, provide surface activation function for flexible materials, and the removal process is uniform and stable. . Vacuum low temperature plasma processor technology         The plasma treatment of the vacuum low temperature plasma processor has always been regarded as an important process in the microelectronics and semiconductor packaging industry. Before introducing a suitable plasma process, plasma cleaning can make the bonding surface cleaner, thereby reducing product failures. The potential benefits are improved surface activity of flexible materials, improved equipment reliability, and elimination of deviations due to unsystematic effects, such as random surface contamination caused by uncontrollable factors.         The low-temperature plasma processor has an "alchemy" or "black box" halo. The plasma contributes to the performance of the lead connection process and the long-term reliability of the packaged device. Plasma has a double advantage: it improves the wire connection process itself and ensures the long-term reliability of the device. In order to greatly improve the quality and success rate of its manufacturing process and products through plasma cleaning before in-line bonding, the vacuum low temperature plasma processor plasma is a completely independent system. It not only saves energy, but also occupies a small space, so that the processing capacity is enlarged, and the production base area is reduced at the same time.         The double-layer rack cabinet of the vacuum low temperature plasma processor can install 20 30x35 inch panels in one cycle, and the multi-functional horizontal rack cabinet can handle a variety of different flexible PCB sizes and can be loaded easily. Efficient anti-fouling etching technology can remove epoxy resin, polyimide, compound and other resins, and has the ability to remove dust, which can effectively remove the resist residue on the inner layer and the panel and the residual solder paste exudation Objects, thereby improving adhesion and solderability.

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Plasma treatment equipment in furniture factory, plasma wood furniture treatment process, energy saving and environmental protection

Plasma treatment equipment in furniture factory, plasma wood furniture treatment process, energy saving and environmental protection

        The basic requirement of furniture production is to produce functional furniture with aesthetics, high quality, and light weight, which makes the design more free. It requires a new combination of different materials and intelligent production methods, which are accompanied by ever-increasing requirements. Health, energy-saving and environmentally-friendly production process is also a decisive factor. The application of plasma treatment equipment in furniture factories can reduce the pressure of enterprises on environmental protection, reduce volatile organic solvents, and produce high-quality furniture. Furniture factory plasma treatment equipment         Nowadays, customers have higher and higher expectations for the products they buy, such as high-gloss printing and painting, long-lasting adhesive effect, seamless edging furniture, pollution-free production technology, new combinations of new materials, and surfaces. Anti-fouling, non-stick or flame-retardant functional coatings, etc., using plasma cleaning technology can provide innovative and low-cost solutions for many different applications.         In the furniture industry, plasma wood furniture treatment has developed rapidly. The plasma treatment equipment we produce is an important equipment in the furniture industry. After plasma treatment, its adhesion can be improved, and the adhesion is stronger. The adhesion of surface properties continues Development and innovation, efficient process flow.         For wood furniture materials such as medium-density fiberboard and wood-plastic composite materials, the treatment process of low-atmosphere plasma treatment equipment can be used to achieve excellent surface activation effects. Its technical advantages are:         (1) More adhesives can be selected.         (2) New advancement treatment processes, such as the application of plasma edge banding technology.         (3) The product quality is more stable, and the defective product ratio is reduced.

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Multi-head plasma processor processing technology semiconductor circuit industry applications

Multi-head plasma processor processing technology semiconductor circuit industry applications

        Atmospheric low-temperature plasma treatment machine is a single nozzle or multi-head plasma surface treatment machine. Plasma cleaning technology is widely used in semiconductor, electronic circuit and other fields. After plasma, the bonding force can be effectively improved, thereby improving the quality of the product, and it is difficult to stick. The plastic multi-head plasma processor improves the adhesion and adhesion in surface treatment.         The atmospheric modification of low-temperature plasma materials is a new type of surface modification method. It is a new way for plasma treatment to achieve industrialization and achieve good modification effects. In recent years, it has become one of the hotspots in the cross-study of plasma science and material modification. One. Due to the rapid development of industrial production, the application fields of materials are becoming more and more extensive, and the requirements for the surface properties of materials are getting higher and higher. People use various methods to modify the surface of the materials to improve the surface properties of the materials, so as to adapt to different Application requirements.、         This article introduces the development and application of a new type of multi-head plasma surface treatment machine. The machine is small in size, light in weight and moderate in price, and is well received by users. This machine has a wide range of applications and can be used in printing, packaging, photoelectric manufacturing, automobile manufacturing, metal and coatings, ceramic surface treatment, cable industry, plastic narrow surface, digital product surface, metal surface treatment and other fields.         In practical applications, the advantages of the multi-head plasma processor:         (1) Plasma processing can increase the surface tension of the product and make the glue bonding stronger;         (2) Directly eliminate the impact on the production environment, which is conducive to the environmental protection of the packaging industry such as food;         (3) Plasma processing is used, and ordinary environmentally friendly water-based glue can be used, which can effectively reduce production costs;         (4) The product after plasma surface treatment has no traces, which not only increases the bonding strength of the product, but also reduces the generation of bubbles;         (5) The continuous operation efficiency of the equipment is high, and the processing speed can reach 400m/min. The system can be equipped with different numbers of spray guns to complete the pretreatment work;         (6) The equipment does not need auxiliary consumables, and only needs 220V power supply.         Low-temperature plasma technology can be used for plasma surface treatment. Low-temperature plasma technology is a dry process. There are many applications in the semiconductor circuit industry of equipment processing technology. It has the advantages of simple operation, easy control, short time required for processing materials, and no pollution to the environment. The effect on the surface of the material only involves hundreds of nanometers and does not affect the performance of the matrix. It has opened up a new way for the surface modification of metal biomaterials, which has attracted more and more attention in the field of biomedicine.         Plasma surface modification technology of multi-head plasma treatment machine is a high-tech that uses physical means to perform surface treatment on fibers to achieve chemical treatment effects. Plasma surface modification adopts dry treatment, which is energy-saving and water-saving, clean and efficient, easy to operate, easy to control, and reduce environmental pollution. The fabric treated by this method only involves the surface of the fiber, and does not damage the performance of the fiber itself, so that the surface characteristics of the fiber can be changed, so as to achieve the desired application effect. This not only retains the original advantages of the fabric, but also gives it new characteristics or eliminates some shortcomings. Therefore, plasma technology meets the requirements of sustainable development strategies and has received more and more attention.

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Characteristics of plasma technology of atmospheric pressure plasma cleaner

Characteristics of plasma technology of atmospheric pressure plasma cleaner

Characteristics of plasma technology of atmospheric pressure plasma cleaner:         The application of atmospheric pressure plasma cleaning machine technology in the household plastic electrical industry has the following advantages: non-polar materials, such as PP, can be used to reduce material costs, no primer is required, materials are saved, and labor costs are applied. Atmospheric pressure plasma cleaners provide various ways to change the surface. Precision cleaning of parts, plasma activation of plastic parts, corrosion of PTFE, silicon wafers, and spraying of plastic parts with PTFE coatings are all part of the application. Therefore, low-temperature plasma can be applied to many different fields, such as the need to combine materials or change the surface properties according to your needs. Atmospheric pressure plasma cleaning machine         In the plasma technology, by providing energy to activate the gas into the spray gun, it can generate high-energy ions and electrons, and other active particles, thereby forming a plasma. So it is very effective to make changes to the surface. The characteristics of plasma technology can be divided into two types:         Physical action: Use ions to impact and erode the surface.         Chemical action: The ionized gas produces a chemical reaction on the surface.         The adjustment of these process parameters, such as pressure, power, processing time, gas flow, and gas, etc., as these parameters change, the working mode of the plasma also changes. In this way, multiple effects can be achieved in a single process.         The cleaning characteristics of atmospheric pressure plasma cleaning machine: easy to use numerical control technology, high degree of automation; with high-precision control device, time control accuracy is high; the correct cleaning of plasma will not produce damage on the surface, ensuring the surface quality; It is carried out in a vacuum, does not pollute the environment, and ensures that the cleaned surface is free from secondary pollution.

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Nitrogen plasma surface treatment method for metallurgical coating of engineering product

Nitrogen plasma surface treatment method for metallurgical coating of engineering product

Engineering product metallurgical coating nitrogen plasma surface treatment method:         Metallurgical coating methods are used in various engineering products to improve their corrosion resistance, wear resistance, fatigue strength and surface hardness. There are two coating methods. One is to attach a layer of substance on the surface of the workpiece; the other is to form a diffusion layer of different substances from the surface of the workpiece. This layer has a measurable concentration gradient and is consistent with the workpiece. The near surface becomes one. Nitrogen plasma surface treatment method         These two coatings can also exist at the same time. For example, for high-load workpieces, a hard nitride diffusion layer is generally formed first, and it is used to reliably support a harder TiN adhesion layer. Many such metallurgical coatings are being produced by physical vapor deposition (PVD) and chemical vapor deposition (CVD) methods.         The PVD coating system solidifies and deposits the solid coating material on the surface of a relatively cold workpiece through vaporization or sputtering. The temperature of the workpiece is generally based on the principle of not reducing the internal properties of the material. However, the adhesion between the PVD coating and even a well-cleaned surface is still not great, so applications are often limited.         The CVD coating system uses liquid or gaseous coating materials to cause a combination of chemical reactions on the surface of a relatively high temperature workpiece. Although the high temperature of the surface of the workpiece is sufficient to promote the combination of chemical reactions, it is also sufficient to cause unwanted changes in the original properties of the workpiece. In order to restore the internal properties of the material, a follow-up process-heat treatment is required.         Using a nitrogen plasma surface treatment method, the two electrodes are placed in a mixed gas with an appropriate partial pressure, and a voltage is applied between them to generate a glow discharge for plasma nitriding. One electrode, the anode, is a grounded vacuum cover. The other is the cathode. It is the workpiece to be ion-nitrided. Compared with the grounded vacuum cover, the workpiece is at a negative potential when nitriding. Connect this diode circuit to a transformer power supply. The current limiting resistor can change the resistance in the external circuit, and therefore, can independently adjust the current at any voltage level.         The currently used power supply can independently select and control the amplitude, duration and period of the voltage, so that the negative nitrogen ions in the plasma zone can be uniformly covered on the surface of the workpiece without causing serious heat generation. The process controller can independently adjust the nitrogen ion concentration and temperature on the surface of the workpiece.         Nitrogen plasma surface treatment is a normal limited diffusion process. When there are nitrogen atoms, the metallurgical process close to the surface of the workpiece and deep into the workpiece is mainly determined by the concentration gradient of nitrogen element, and the influence of the surrounding plasma parameters is second.         Nitrogen plasma surface treatment is different from other helium technology. In the process, it uses glow discharge phenomenon to excite nitrogen. Exciting nitrogen in this way has many very important results:         (1) Plasma nitriding can better control the composition, structure and performance of the surface of the finished product. The result of ammoniation does not produce a mixed phase (compound area) which is often brittle. For non-ferrous metal materials, cast iron and alloy steel, this is an effective surface treatment method.         (2) Plasma nitriding can be performed at a temperature lower than conventional nitriding, so that the high performance of the core can be maintained. Low temperature sputtering can remove dirt on the surface of the workpiece, and nitriding can be completed in a short time at this low temperature.         (3) Plasma nitriding can solve environmental problems, because the gas discharged from the ion ammoniation furnace is non-toxic and does not explode, and can be directly discharged outdoors, which requires expensive follow-up cleaning work and in accordance with the EPA approved method Post-processing to clean the falling agent.

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