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The influence of plasma treatment by plasma activation equipment on the piezoresistive characteristics of carbon black/silicone rubber

The influence of plasma treatment by plasma activation equipment on the piezoresistive characteristics of carbon black/silicone rubber

The influence of plasma treatment by plasma activation equipment on the piezoresistive characteristics of carbon black/silicone rubber: Carbon black/silicone rubber is a good material for manufacturing flexible sensors due to its piezoresistive effect and good flexibility. However, this type of material has a small range of resistance change, poor sensitivity to pressure signals, and carbon black is easy to prepare in the preparation. Agglomeration makes it unevenly dispersed in the rubber and affects the stability of the piezoresistive performance. 　　 Add nano Al2O3 particles to carbon black/silicone rubber to improve the stability of the material's electrical properties and maintain good flexibility, and also increase the pressure sensitivity range of the material. Mixing the non-fused base materials polypropylene and polystyrene to control the carbon black particles to be selectively located at the interface of the two bases to form a rod-like structure, so that the carbon black forms a stable and uniform conductive network, and improves the piezoresistive properties of the material . 　　The carbon blacks of different particle sizes were mixed, and it was found that the carbon black with a certain distribution of particle size and specific surface area in the material has better conductivity and dispersibility than the single-distributed carbon black. The carbon black is treated with a coupling agent to improve its dispersibility in the epoxy resin and improve the conductivity of the material. 　　 The above-mentioned methods all change the original two-phase structure of the material, and at the same time have a certain influence on the flexibility of the material. Plasma treatment by plasma activation equipment can not only change the surface chemical properties of carbon materials, but also control the surface physical properties of the materials. Compared with the sample without plasma treatment, the resistance of the sample made of carbon black after plasma treatment by plasma activation equipment is reduced, while the resistance of the treated sample is significantly increased, and the resistance range is greatly changed. improve. The plasma-treated carbon black samples have higher pressure sensitivity. 　　 When carbon black/silicone rubber is deformed by external pressure, friction will be generated between the macromolecular chains of silicone rubber. At the same time, friction will also be generated between silicone rubber molecules and carbon black molecules. After 　　 carbon black is treated with plasma, the piezoresistive performance of the sample has obvious changes, and different plasmas significantly affect the piezoresistive performance of the sample. In addition, plasma treatment improves the pressure sensitivity of the sample. 　　 argon plasma activation equipment plasma treatment removes part of the oxygen-containing impurities on the surface of carbon black and introduces nitrogen-containing functional groups. Its effect is similar to that of oxygen-containing functional groups. It acts as an electron trap and causes the resistance of carbon black to increase. Argon is an inert gas. After argon plasma treatment, the impurities, functional groups and unstable boundary layers that trap electrons on the carbon black surface are removed, the conductivity of the carbon black is improved, and the resistance is reduced. Plasma treatment increases the specific surface area of ​​carbon black. When carbon black/silicone rubber is pressed, the probability of contact between carbon black particles is greatly increased, which makes the resistance change of the sample more obvious and is more sensitive to pressure sex. 　　Plasma treatment improves the pressure sensitivity of carbon black/silicone rubber. After plasma treatment by plasma activation equipment, the carbon black is more uniformly dispersed in the silicone rubber matrix and the particle size is smaller; the etching effect of the plasma on the carbon black increases the contact probability between the carbon black during the pressure process, and it is easy to form electrical conductivity aisle.

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What is the application of the low-temperature plasma processor made by Chengfeng in the lawn mower

What is the application of the low-temperature plasma processor made by Chengfeng in the lawn mower

What is the application of the low-temperature plasma processor made by Chengfeng in the lawn mower: Lawn mowers are also known as lawn mowers, lawn mowers, lawn trimmers, etc. A lawnmower is a mechanical tool for mowing lawns and vegetation. It is mainly used for mowing and beautifying park grass, green space, factory grass, golf course, home garden, grass, orchard, etc. The following Chengfeng Zhizao will explain for you Application of low temperature plasma processor in lawn mower. Lawn mowers are composed of cutter heads, engines, walking wheels, walking mechanisms, blades, armrests, control parts, etc. There are two types of diesel engines and gasoline engines. Different regions have very different requirements on the selection of materials and accessories for lawn mowers. This depends not only on the range of use of the lawn mower, but also on the terrain and the growth pattern of the grass. The cutting machine has the characteristics of regular stubble cutting, low power demand, time saving and efficiency improvement. Now it has been widely used in all aspects of our lives. A brief introduction to the lawn mower, then how does the plasma processor improve its product quality. The cutting machine vibrates continuously during the working process, and metal friction will generate a lot of heat. Therefore, the structural parts, fasteners and functional parts of the cutting machine have high requirements for reliability and safety. Generally, pretreatment and low temperature plasma treatment are used. The device is used for bonding and potting these plastic, metal materials and other accessories, surface treatment, and low-temperature plasma processor is beneficial to improve the quality and performance of the cutting machine. On the one hand, the low-temperature plasma processor can react with and vaporize the organic substances on the surface of the accessories to make the surface of the accessories cleaner and increase the adhesion; on the other hand, it can form active groups on the surface of the accessories to improve the reliability of the potting process. The above is the application of low-temperature plasma processors on lawn mowers. If you want to know more product details or have questions about plasma processors, please click on the online customer service of Chengfeng Zhizao, and look forward to your call!

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How to judge the quality of plasma cleaning machine? Which supplier produces the best equipment?

How to judge the quality of plasma cleaning machine? Which supplier produces the best equipment?

How to judge the quality of plasma cleaning machine? Which supplier produces the best equipment? Do you have the same question: Which type of plasma cleaning equipment is good? What are the more reliable plasma cleaning brands on the market? If you have such a question, you might as well look down. How to judge the quality of the plasma cleaner? Which supplier produces good equipment? A combination of many aspects can be seen clearly. Although it is more complicated, there are methods to follow. Chengfeng Zhizao believes that it can be judged from the following three aspects: "asking", "seeing", and "testing". What does it refer to? Let's take a look. "Ask" means you can consult about the establishment time of the plasma cleaning machine brand manufacturer, the background of key personnel, the patent acquisition situation, and the service customer base. These aspects often reflect the brand strength, and to a certain extent, it can identify some weaker ones. brand. You can go to the brand manufacturer’s plasma cleaning machine to conduct on-site inspection and understanding. The content of the inspection can include but not limited to technical qualifications, personnel quality, production scale, equipment management, etc. "Test" is to detect the effect of the sample after plasma surface treatment. By sending the sample to the plasma cleaning machine supplier for processing, not only can the quality and effect of the equipment be intuitively understood through the effect of the test, but also can be observed in the process The response speed of the manufacturer. At present, the domestic plasma cleaning machine market mainly consists of imported and domestic products. Imported brand plasma cleaning machines are mainly imported from abroad and are very popular in China. The more typical ones are Diener, TePla, Plasmatreat, March, PE, Panasonic, YAMATO, Vision, PSM, etc.; domestic plasma cleaners also have a few brands with a history of more than 10 years, and have a certain degree of precipitation and accumulation in the related technologies of plasma cleaners, in PCB, FPC, optical devices, mobile phone camera modules , Automobile manufacturing, printing and many other industries have certain influence. Another point to remind everyone is that although some plasma cleaning machine manufacturers on the market are strong, the plasma cleaning equipment may only be a sideline of them, and there may be insufficient technical support, process development and after-sales service, so choose A dedicated, dedicated, and professional brand is also a key choice. Chengfeng Zhizhi has focused on plasma technology research and development for 20 years, committed to the development of plasma cleaning machines and various customized plasma surface treatment machines, and is committed to the application of plasma technology.

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Plasma cleaners are also called plasma cleaners in Taiwan, so what brands are there

Plasma cleaners are also called plasma cleaners in Taiwan, so what brands are there

Plasma cleaners are also called plasma cleaners in Taiwan, so what brands are there: Speaking of plasma cleaners, you may not know what it is, but in fact, plasma cleaners are another name for plasma cleaners, which are more popular in Taiwan, so the quality of plasma cleaners in Taiwan So what? What are the main brands? Tracking Taiwan has been deeply influenced by Europe and the United States, and has also been communicating and cooperating with Japan for a long time. Plasma cleaners have flourished in industries and applications such as semiconductors, circuit boards, displays, optoelectronic products, and plastic materials. In Taiwan, the plasma cleaning machine is also called plasma cleaning machine. Literally, the word "plasma" vividly describes the state of a substance, that is, the fourth state of the substance. The Taiwan brand plasma cleaning machine, that is, plasma cleaning equipment, is relatively stable in quality, and the price is also at a medium level. With the transformation and upgrading of domestic industries, the domestic market has an increasing demand for plasma cleaning machines. In recent years, some domestic joint venture or commissioned plasma cleaning machines have also appeared. Among Taiwan's plasma cleaning machine brands, there are actually a number of more reliable brand manufacturers, with representative products such as Kui Ding, Taisheng, and Huisheng. Chengfeng Zhizao has focused on plasma plasma cleaning machine technology for 20 years. If you are interested in plasma cleaning machines or want to know more, please click Chengfeng Zhizao online customer service consultation, Chengfeng Zhizao is waiting for your call!

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Plasma cleaner precision electronic package packaging and coating substrate surface cleanliness activation

Plasma cleaner precision electronic package packaging and coating substrate surface cleanliness activation

Plasma cleaner precision electronic package packaging and coating substrate surface cleanliness activation: As a traditional mainstream high-efficiency cleaning process, solvent cleaning is widely used in various industries, but it is more complicated in the management of the cleaning process of precision electronic devices; and with the precision microelectronics process technology and coating film on the surface cleanliness of the substrate The strict requirements of activation energy and their application limitations are self-evident. Plasma cleaner technology, as a new type of surface treatment and dry cleaning process, has been well-known to everyone in recent years with the continuous intensification of its application research in various industries, especially the precision electronics industry. Plasma's solvent-free dry fine cleaning can play an important role in the elimination of ODS and organic volatile VOC cleaning agents. Compared with solvent cleaning, it has the characteristics of simple process, low cost, environmental protection and energy saving. It can also be used as a solvent type. An important supplement to deep cleaning. Plasma cleaner cleaning can be applied to various substrates and optical glass, such as surface activation, modification, and cleaning treatment before touch screen, printing, laminating, spraying, inkjet and other processes, thereby improving the surface of the material Joint durability and strength. The physical and chemical cleaning methods that have been widely used at present can be roughly divided into two categories: wet cleaning and dry cleaning. Wet cleaning is mainly based on solvent-based cleaning as the mainstream, and dry cleaning is characterized by plasma cleaning and is popular. Pay attention to. With the high requirements for surface cleanliness and activation energy of precision electronic assembly (encapsulation) and coated substrates, precision cleaning has become indispensable in related manufacturing processes. For example, before high-density interconnect HDI, PCB PTH plating, semiconductor chips, solar panels, touch screen glass, plastic, ceramic, metal and polymer panels are coated or bonded, BGAFip Chip, LCD, LED, IC chips And bracket packaging or assembly, the potting process after PCBA soldering, the dispensing encapsulation of IC pins or soldering ends, the underfill of the chip, the "three-proof" coating on the surface of the circuit board, etc. Pretreatment for cleaning or cleaning. In the packaging process, effective cleaning of the chip (DIE), wire support, PCB soldering pad, PCBA "three-proof" coating, underfilling of the bottom solder end device BTC, and potting of the whole machine and devices, we only have to ensure Workpieces such as PCBA&PCB bonding interface pads are clean in order to obtain sufficient surface to achieve the effectiveness and durability of bonding. For this reason, it is very important to use proper cleaning processes for bonding chips, substrates or substrates. Adding a dry plasma cleaner process cleaning after the traditional solvent cleaning can more effectively eliminate organic residues and oxides. Dry plasma technology is very effective for removing organic photoresist (ashing) and other contaminants. In the integrated pretreatment step, the natural oxide layer can be removed, and the decontamination can be achieved through the chemical reaction of gas and plasma energy. Purpose. Plasma, as a refined new cleaning process, has its shortcomings: it has no obvious cleaning effect on hardened solder and other inorganic substances and deep grease dirt, but it has a more obvious cleaning effect on all slight organic substances, so it is more effective. It is used for fine cleaning or replenishment after solvent cleaning. Plasma cleaners do not need to use solvents and water for cleaning, and there is no pollution problem; the process is relatively simple, and there is no need for operation steps such as drying after cleaning, and it is especially suitable for fine and high-quality cleaning of the surface of precision workpieces. Plasma cleaners can be used to clean all kinds of PCB through holes, solder pads, substrates and optical glass touch screens, and surface activation, cleaning, coating, and coating before printing, laminating, spraying, inkjet, and electroplating , Modification, connection technique, roughening, etc. Activation: greatly improve the wetting performance of the surface to form an active surface; cleaning: remove dust and oil, fine cleaning and electrostatic discharge (ESD); coating: provide a functional surface through surface coating treatment and improve surface adhesion Capability and reliability and durability of surface bonding. Plasma can not only effectively remove organic dirt on the surface of high molecular polymers, but also can be used to finely clean the surface of PCBA and PCB, ceramic panels, glass panels, metal panels and other materials. Plasma cleaners can treat the surfac

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The edge effect of low-temperature plasma surface treatment DC glow plasma

The edge effect of low-temperature plasma surface treatment DC glow plasma

The edge effect of low-temperature plasma surface treatment DC glow plasma: Low-temperature low-temperature plasma surface treatment Plasma is widely used in material treatment. The existing treatment technologies include plasma cleaning, glow nitriding, magnetron sputtering, multi-arc ion plating, plasma etching, ion implantation, etc., related Discharge forms are divided into direct current glow discharge, radio frequency plasma discharge, high voltage pulse direct current discharge and so on. However, due to the different shapes of the processed workpiece materials, many of them have obvious edges and corners, so "edge effects" appear, which have varying degrees of impact on material properties, especially in terms of uniformity, thickness, and mechanical properties. Glow nitriding is also called ion nitriding. It uses glow discharge to generate plasma. Under the action of low-temperature plasma surface treatment plasma and strong electric field, high-speed nitrogen and hydrogen positive ions bombard the surface of the workpiece, and nitrogen will penetrate the surface of the workpiece. . Nitrogen infiltrated into the material can form helium compounds, which have high hardness, thermal stability, and dispersion, so the mechanical properties of the material will be greatly improved. It is a high-performance nitriding method with short nitriding cycle, low brittleness of the nitriding layer, controllable thickness and organization of the nitriding layer, and has the effect of purifying the surface. The central problem of the low-temperature plasma process is that there is a sheath layer between the plasma and the substrate, and the ions are accelerated through the sheath layer, thereby causing bombardment, sputtering, and injection to the material to achieve modification. Nitriding is a direct current glow discharge, which is set in a vacuum chamber with a certain size to perform a low-pressure, non-magnetic direct current glow discharge and generate plasma. Since the entire plasma is in an electrically neutral state, the potential at the plasma boundary is the same, and the workpiece to be processed is regarded as an equipotential body, and the potential difference between the two is the sheath potential difference. If the corners of the workpiece have no functional or shape requirements, the corners can be cambered. Since there is no abnormal electric field distribution, the sheath voltage and thickness are constant, and the ion density is the same, so the hardness of the nitrided layer is uniform. In the range from the edge of the DC glow of the low-temperature plasma surface treatment, the closer to the corners, the greater the electric field intensity and ion density, and the smaller the sheath thickness. After the corner arc surface treatment, because there is no corner, there is no edge effect; the main plasma density can be reduced, the edge effect is suppressed, and the nitriding effect is better.

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