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The effect of plasma treatment on the softness of silk fibroin film and silk fibroin coated fabric

The effect of plasma treatment on the softness of silk fibroin film and silk fibroin coated fabric

The effect of plasma treatment on the softness of silk fibroin film and silk fibroin coated fabric: Plasma is a non-condensed system produced by ionizing gas under certain conditions. It is composed of neutral atoms or molecules, excited atoms or molecules, free radicals, electrons or negative ions, positive ions, and radiation photons. Low-temperature plasma has the characteristics of improving the surface properties of the polymer without changing the properties of the polymer body, which is very suitable for the modification of textile materials. The plasma etching plasma treatment technology for fiber structure analysis is an early application of plasma treatment in the textile industry and has become a mature technology. Another application is the modification of textile materials. The material undergoes surface modification, graft polymerization and plasma polymerization deposition, etc., to change the surface affinity (phobic) water of textile materials, increase adhesion, and improve printing and dyeing performance. It is even possible to introduce new groups on the surface of polymer materials to change the surface potential, surface energy level component, dispersion component, and surface microstructure, thereby improving the surface properties of polymer materials and making them biocompatible biomedical Material. The regenerated silk fibroin film formed at room temperature has a certain degree of flexibility and water solubility, but after a period of time, the film becomes brittle and affects its use. Low-temperature plasma treatment of recycled silk fibroin film and recycled silk fibroin-coated polyester-cotton fabric: After treatment with low-temperature plasma, the stiffness of the regenerated silk fibroin film is reduced, that is, the flexibility is improved. The higher the vacuum degree during treatment, the better the softening effect. This may be due to the fact that more ions are generated when molecules are ionized, and they recombine with the dehydrogenation free radicals on the surface of the regenerated silk fibroin film, which increases the wettability of the regenerated silk fibroin film, thereby improving the flexibility of the regenerated silk fibroin film. The greater the degree of vacuum, the better the softness of the silk fibroin-coated fabric after low-temperature plasma plasma treatment. This is consistent with the conclusions before and after the regenerated silk fibroin film treatment, but the low-temperature plasma softening effect of the silk fibroin-coated fabric is not as good as the treatment effect. The regenerated silk fibroin film has a good low-temperature plasma softness treatment effect, and the softness effect of the O2 treatment silk fibroin coating fabric is better than the H2O treatment effect. After the recycled silk fibroin coating and polyester-cotton fabric are treated with low-temperature plasma plasma, their chemical cross-linking has a certain change, which can further enhance the comfort of the polyester-cotton fabric silk fibroin coating without adding any crosslinking agent. Practicality of finishing. After low-temperature plasma treatment, the regenerated silk fibroin film has a significantly higher water solubility than that without low-temperature plasma treatment, while the effect of treatment under O2 and H2O conditions is not much different. This may be due to the fact that new hydrophilic functional groups formed on the surface of the regenerated silk fibroin membrane and the chain structure of macromolecules have undergone certain changes after the treatment with low-temperature plasma plasma, which improves the hydrophilicity and water solubility. The vacuum condition has a greater influence on the effect of the regenerated silk fibroin film and the regenerated silk fibroin coating. The softness of the fabric is treated. The greater the vacuum, the better the softening effect. The H2O low-temperature plasma treatment has a better effect on the softness of the regenerated silk fibroin film, while the O2 low-temperature plasma treatment has a better effect on the softness of the regenerated silk fibroin-coated polyester-cotton fabric. After low-temperature plasma treatment, the water solubility of the regenerated silk fibroin film is obviously increased, but it has little effect on the hot water loss rate of the silk fibroin-coated fabric.

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Introduction of dry screw vacuum pump and its characteristics of vacuum plasma power supply equipment

Introduction of dry screw vacuum pump and its characteristics of vacuum plasma power supply equipment

Introduction of dry screw vacuum pump and its characteristics of vacuum plasma power supply equipment: Dry vacuum pump is an abbreviation of dry mechanical vacuum pump. Dry vacuum pump is a common type of vacuum pump on vacuum plasma power equipment. According to the knowledge of practitioners, dry vacuum pump is more reliable and durable. Let Cheng Fengzhi introduce the dry vacuum pump and its characteristics. What is a dry vacuum pump? Dry vacuum pump is a vacuum pump that does not use liquid as a working medium, such as oil, water or other polymers. This can make dry vacuum pumps better in cleaning and prevent oil pollution. Therefore, dry vacuum pumps are mainly used in vacuum plasma power equipment, which requires high cleanliness, such as semiconductors, biomedicine, aerospace and other fields. Dry screw vacuum pump is a commonly used type of vacuum plasma power equipment. Dry screw vacuum pump: The dry screw vacuum pump is a vacuum pump that uses a pair of screws to rotate synchronously in the vacuum pump housing at high speed and reverse to generate force to achieve suction and discharge functions. As the dry screw vacuum pumps are working, there is no friction between each other, smooth operation and low noise, so there is no need for lubricating oil in the working cavity. The advantages of dry screw vacuum pumps; The dry screw vacuum pump is a dry vacuum pump with excellent performance. Compared with other vacuum pumps, it has many advantages: First, the vacuum of the dry screw vacuum pump is very high, and the vacuum can reach 1~2 Pa; Second, the dry screw vacuum pump has stable performance, is not prone to failure, has low noise, and is easy to maintain; In addition, the working cavity of the dry screw vacuum pump and the surface of the screw rotor have anti-corrosion coatings, which are more suitable for harsh working conditions. The working principle and advantages of the screw vacuum pump commonly used in the dry vacuum pump on the above-mentioned vacuum plasma power supply equipment. After reading the above content, have you found the fundamental reason for the reliability and durability of the dry vacuum pump. If you are interested in plasma cleaners or want to know more details, please click Chengfeng Zhizao online customer service consultation, Chengfeng Zhizao is waiting for 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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How does the brand quality of Japanese plasma cleaners compare with domestic ones?

How does the brand quality of Japanese plasma cleaners compare with domestic ones?

How does the brand quality of Japanese plasma cleaners compare with domestic ones? There are many brands of plasma cleaners on the market, including imported brands and domestic brands. Japanese plasma cleaner brands are also imported brands. Recently, I have received feedback that the quality of the equipment of the Japanese plasma cleaner brand is good, and there are already domestic production. No need to import. Is that right? Chengfeng Zhizhi plasma technology will explain it for you. In terms of plasma cleaning machine related technology, after the introduction of technology, digestion and experience precipitation, the Japanese plasma cleaning machine brand can indeed be comparable to European and American brands in the basic research of plasma, and some Japanese plasma cleaning machine brands are in process and The detail control is indeed very good, the equipment quality is stable, and the structure and appearance design also reflect the humanized design. Some Japanese plasma cleaner brands have also achieved good results in industrial and market applications in the fields of semiconductors, panels, and new materials with Japanese characteristics. Therefore, it is reasonable to say that the quality of the Japanese plasma cleaner brand equipment is good, but it is also necessary to look for some more reliable representative brands, such as YAMATO, SEKISUI, Panasonic and so on. The high price is a factor that affects the market share of Japanese plasma cleaners in the domestic and Japanese markets. It is not yet clearly known that plasma cleaners of Sino-Japanese joint venture brands have appeared in China, and Japanese plasma cleaners are generally imported with original packaging, so the corresponding delivery time and maintenance cycle are relatively long. Chengfeng Zhizao has focused on plasma equipment for 20 years. If you are interested in plasma cleaning machines or want to know more, please click Chengfeng Zhizao's online customer service consultation. Chengfeng Zhizao is waiting for your call!

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The effect of carbon nanotube filler on the failure of varnish coating by surface treatment of atmospheric plasma machin

The effect of carbon nanotube filler on the failure of varnish coating by surface treatment of atmospheric plasma machin

The effect of carbon nanotube filler on the failure of varnish coating by surface treatment of atmospheric plasma machine: In the natural environment, materials will undergo chemical or electrochemical effects due to environmental influences, which will cause corrosion failure, lose their original mechanical properties and structural effects, and cause potential safety hazards and economic losses. Corrosion in the atmospheric environment, soil environment and marine environment is highlighted by marine corrosion. In terms of marine corrosion protection, paint protection occupies a high proportion, which makes the research of coatings in seawater environments a hot spot. Through the modification of the coating itself and the coating attachment matrix, the effect of improving the service life of the coating and improving the quality of the protection of the coating is achieved. Compared with the traditional modification technology, the plasma treatment of atmospheric plasma machine has the characteristics of environmental protection, no pollution, no damage to the overall nature of the body surface, wide application range, and safety. In terms of surface modification of the substrate, plasma treatment is applied to the substrate. After plasma treatment, functional groups for connectivity are added to the surface of the substrate, such as hydroxyl (-OH), carbonyl (-CO) and other functional groups. These functional groups can react with the unsaturated double bond (-C=C-), carboxyl (R-OOH), hydroxyl R-OH, aliphatic (R-OOR) and other functional groups in the alkyd resin to form chemical bonds to improve the coating Bonding force with the substrate. In addition, plasma treatment with atmospheric plasma machine can also increase the surface roughness and increase the bonding force from the physical aspect. Electrochemical impedance (EIS) and scanning Kelvin probe test (SKP) results have proved that plasma treatment can enhance the protective performance of the coating and delay the failure of the coating. In order to improve the water seepage and corrosion resistance of the coating itself, nano-scale multi-walled carbon nanotubes are added to the varnish to act as pigments and fillers. The addition of carbon nanotubes increases the compactness of the film-forming coating, fills the channels for water molecules to penetrate, significantly prolongs the time it takes for water to penetrate from the coating surface to the substrate surface, delays the coating failure, and increases the service life of the coating. Analyze from the perspective of molecular mechanics. By simulating the plasma treatment on the surface of the iron substrate, the changes in the adsorption energy of the alkyd resin on the surface of the untreated iron substrate and the surface of the iron substrate treated by an atmospheric plasma machine are compared. The results prove that plasma treatment on the surface of the iron substrate can promote the adsorption of alkyd resin on the surface of the substrate. The effect of plasma surface treatment and carbon nanotube filler on the failure of the varnish coating can improve the protective effect of the coating and increase the life of the coating.

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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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