图片名称

NEWS

Popular Articles

Contact Us

图片名称
图片名称

Service Hotline

13632675935

CRF

TEL：13632675935

E-mail：shaobo@sfi-crf.com

Address: 1303, Building 3, Manjinghua Science and Innovation Workshop, No.6 Songjiang Road, Songgang Street, Bao'an District, Shenzhen, China.

The effect of surface plasma treatment equipment treatment process on bamboo surface wettability

The effect of surface plasma treatment equipment treatment process on bamboo surface wettability

The effect of surface plasma treatment equipment treatment process on bamboo surface wettability: At present, my country's forest resources are severely lacking, and the per capita forest area and forest accumulation are only 1/4 and 1/7 of the world per capita level, respectively. The bamboo resources in my country are very rich. The bamboo forests are planted in a wide area and there are many varieties in the country, which is known as the "Bamboo Kingdom". Bamboo grows fast, has a short yield cycle, is green, environmentally friendly, renewable, and has excellent material properties. Many uses can replace wood. "Substituting bamboo for wood" can effectively alleviate the contradiction between wood supply and demand. However, due to the different properties of each part of the bamboo wall, there are still shortcomings. For example, the glue, paint, preservative, and flame retardant impregnation of bamboo green and bamboo yellow have poor effects, and they are often removed in actual production, which greatly reduces The utilization rate of bamboo material seriously restricts the industrialized production of bamboo material. 　　In order to improve the wettability of each part of the bamboo wall, and make the bamboo material (especially bamboo green and bamboo yellow) to be efficiently used, the cold plasma treatment technology of surface plasma treatment equipment is introduced to modify the bamboo material. Surface plasma treatment equipment Plasma is a particle with energy. When it contacts or collides with the surface of the bamboo material, it will transfer its energy to the molecules and atoms on the surface of the bamboo material, and then produce some physical and chemical reactions on the surface of the bamboo material, thereby changing the The surface properties of bamboo including wettability. 　　The wettability characterizes the difficulty and effect of the liquid wetting, spreading and adhering on the surface of the bamboo when the liquid contacts the bamboo. The research on the modification of bamboo wettability is of great significance to the post-processing of bamboo gluing, surface finishing, anti-corrosion, and flame retardant. Plasma technology of surface plasma treatment equipment can significantly improve the wettability of bamboo green and bamboo yellow and the strength of bamboo products, increase the utilization rate of bamboo, and effectively protect forest resources. It is important for the processing and utilization of bamboo wood-based panels and other bamboo products. The theoretical significance and practical application value. Oxygen, nitrogen and argon are used as plasma treatment gases, which can significantly reduce the equilibrium contact angle of bamboo. The order of influence is oxygen>nitrogen>argon. This is because when oxygen is used as a treatment gas, it is easy to attract people on the surface of bamboo_ Oxygen-containing polar functional groups such as OH and -COOH can promote the wetting, spreading and permeation of the phenolic resin glue on the surface of the bamboo. As an inert gas, the plasma treatment is mainly performed by etching the surface of the bamboo to improve the phenolic resin glue. The spreading and penetration rate. The equilibrium contact angle of bamboo green bamboo meat and bamboo yellow surface will gradually decrease with the prolongation of plasma treatment time of surface plasma treatment equipment, and then become stable. This is due to the etching (surface material The removal of the polymer and the scission of the polymer molecular chain) and the increase of active groups occur simultaneously. 　　 Proper plasma treatment time of surface plasma treatment equipment can enable active groups to be implanted on the surface of bamboo, and the degree of etching is small, which improves the wettability of the bamboo surface.

MORE +
What should you pay attention to when buying a plasma cleaning machine? Chengfeng Zhi has 20 years of plasma technology to answer you

What should you pay attention to when buying a plasma cleaning machine? Chengfeng Zhi has 20 years of plasma technology to answer you

What should you pay attention to when buying a plasma cleaning machine? Chengfeng Zhi has 20 years of plasma technology to answer you: Choose supplier brand? Look at the product quality? Choose after-sales service? For you who want to buy a plasma cleaner, is it a headache for you to have no relevant experience? Here are a few options for you, I hope it will help you. Plasma cleaning machine is one of the process equipment, because its unit price is higher, which is different from general consumer goods, so of course you have to weigh in many aspects before buying. Therefore, we need to understand the difference between plasma surface treatment technology and other methods. Plasma surface treatment is to ionize conductive gas into plasma and perform surface treatment on the material, so as to achieve cleaning, activation, etching and coating and other treatment purposes. In this regard, we usually make comparisons, such as flame surface treatment, centrifugal washing and other treatment methods. The differences between these are not repeated here. Whether there is a need for purchase, according to the characteristics and requirements of the sample you want to process, such as product shape, product material, weathering temperature, time, yield requirements, processing speed, etc., you need to consider the actual atmospheric plasma equipment and vacuum plasma cleaning The test effect of the machine. In addition to whether the treatment effect can be achieved, what else should be paid attention to? 1. Whether the product brand is imported or domestic: Earlier, imported plasma cleaning machine brands occupied a large share of the market due to their advantages in technology and quality. With the development in recent years, the gap between domestic plasma equipment and imported plasma equipment has gradually narrowed. The self-developed plasma equipment has also made considerable progress and has been able to meet the processing needs. 2. After-sales service: After-sales is also an important link. At this point, it is recommended that you choose a manufacturer with quality assurance. Chengfeng Zhizao has provided customers with maintenance services for plasma equipment, and Chengfeng Zhizao is also deeply touched by this. 3. Equipment price: Generally speaking, atmospheric-pressure plasma cleaners have more price advantages than low-pressure vacuum plasma cleaners. This depends on your specific situation. Chengfeng Zhizao focuses on the research and development and manufacturing of plasma technology. If you want to have a more detailed understanding of the equipment or have questions about the use of the equipment, please click on the online customer service of Chengfeng Zhizao. Chengfeng Zhizao is waiting for your call!

MORE +
The indicator light of jet plasma processor is very useful. These knowledge should not be misse

The indicator light of jet plasma processor is very useful. These knowledge should not be misse

The indicator light of jet plasma processor is very useful. These knowledge should not be missed: Have you ever encountered a jet-type plasma processor that suddenly stops during operation? Don't be impatient at this time. Although the indicator light of the jet plasma processor is small, it is very useful! You may not know that by observing the blinking of the indicator light of the instrument, we can preliminarily determine what is wrong with the atmospheric jet plasma processor. After the judgment is accurate, the problem can be solved by simply checking, confirming and troubleshooting. Have you noticed it? When the equipment is working normally, the red LED indicator of the jet plasma processor is always on. When a failure occurs, the flashing state of the LED indicator will also change. How to judge the type of problem of the jet plasma treatment system from the flashing of the indicator light, please refer to the equipment manual provided by the manufacturer at the time of purchase or the manufacturer’s manual provided by the customer service staff. R&D and production, take our own jet plasma processing system as an example, let me introduce you. Based on the time when the plasma processing system is stopped, the system may stop after a period of operation after startup, or it may stop suddenly after a period of operation. The fault system of the jet plasma processor and the corresponding LED indicator flashing method and general treatment are as follows: The red LED indicator flashes slowly, about 1 time per second, indicating that the air source input is faulty and the system protection is turned off. At this time, it is necessary to check whether the air pressure is stable and the related connection pipe conditions. The red LED light flashes quickly, about 5 times per second, indicating that the electrical system is faulty and the system protection is off. At this time, please check whether the high-voltage wire is damaged, and whether there is any fall off or poor contact; if not, the next step is to check the high voltage of the spray gun Whether the cable falls off, whether the electrode insulation sheath in the spray gun is broken down. If no abnormality is found, it can be determined that it is a problem with the host. Please contact our professional after-sales personnel in time to arrange maintenance during this period. When the red LED is off, it indicates 220V input failure, please check the 220V input circuit. If you want to know more about the details of the jet plasma processor, or have questions about the use of the equipment, please click on the online customer service of Chengfeng Zhizao, and Chengfeng Zhizao is waiting for your call!

MORE +
How to classify the vacuum control valve of low-pressure vacuum plasma machine

How to classify the vacuum control valve of low-pressure vacuum plasma machine

How to classify the vacuum control valve of low-pressure vacuum plasma machine: A low-pressure vacuum plasma machine that can perform plasma surface treatment of substances in a vacuum environment. Its basic parameters are excitation frequency, excitation energy, vacuum degree, gas flow, cavity structure, and gas characteristics. The vacuum air circuit control valve can realize the on and off of the air circuit, so as to control the vacuum degree and other parameters. There are three main types of control valves for vacuum control of low-pressure vacuum plasma machines. They are high-vacuum pneumatic baffle valve, electromagnetic vacuum with inflation valve, and manual high-vacuum angle valve. The working principle is roughly the same, and they can basically be controlled. The valve realizes the functions of on and off of the vacuum circuit and pressure measurement to ensure the reliable and stable operation of the equipment. Different types of equipment have different applicable characteristics. High vacuum pneumatic baffle valve: GDQ is also called high-vacuum pneumatic baffle valve. Generally, when the low-pressure plasma equipment in the vacuum pipeline is on standby for a short time, the vacuum pump can still keep working. The high-vacuum pneumatic baffle valve can switch on and cut off the airflow in the vacuum pipeline. So as to realize the opening and closing of the vacuuming process in the vacuum chamber. The high-vacuum pneumatic baffle powered by compressed air is stable and reliable in operation and easy to maintain. It is one of the three types of vacuum circuit control valves that are more widely used. Electromagnetic vacuum belt type inflation valve: The electromagnetic vacuum charging valve is a solenoid valve type control valve, which is mainly used for low-pressure vacuum plasma machines. The vacuum pump is turned on as the operating parameters change. Its working principle is: when the vacuum pump starts running, the electromagnetic vacuum belt inflation valve is opened and the vacuum pump is closed. At this time, the valve coil is de-energized and the valve is closed by mechanical force to prevent the oil and gas in the vacuum pump from being affected by the negative pressure in the vacuum chamber. Suck backwards. Electromagnetic vacuum charging valve has the advantages of easy installation, but poor stability. If used for a long time, the magnetic force of the valve will decrease, and the return spring is also prone to slow response. At present, this kind of control valve is mostly used for experimental low-pressure vacuum plasma equipment. The above are two control valves for vacuum plasma control of low-pressure vacuum plasma machines. If you want to know more details about low-pressure vacuum plasma machines or have questions about the use of plasma processing equipment, please click Chengfeng Zhizhi Online Customer Service Consultation, Chengfeng Zhizao is waiting for your call!

MORE +
Plasma cleaner assisted PLA surface grafting chitosan and its antibacterial properties

Plasma cleaner assisted PLA surface grafting chitosan and its antibacterial properties

Plasma cleaner assisted PLA surface grafting chitosan and its antibacterial properties: Polylactic acid (PLA) spunbonded nonwoven material is used as the base material, and a plasma cleaner is used to assist the grafting of chitosan macromolecules on the surface of PLA to improve the antibacterial properties of the PLA material. Plasma pretreatment can significantly increase the grafting rate of chitosan on the surface of PLA nonwoven materials. Polylactic acid (PLA) non-woven materials have good biocompatibility, and the waste can be completely degraded, avoiding the generation of white waste, and is conducive to sustainable development. It has been widely used in textile, medical, agricultural and other fields. However, PLA non-woven materials have certain defects in hydrophilicity and antibacterial properties, which limit their further development in the biomedical field. The modification methods of PLA mainly include copolymerization modification, blending modification, cross-linking modification and surface modification. Among many methods, plasma can be generated under normal pressure, eliminating the need for complicated vacuum systems, and only acts on the superficial layer of the material without damaging the main performance of the material. It reduces energy consumption and achieves the same effect on the material. Requirements for surface modification. Chitosan is widely present in the shells of shrimp, crabs, shellfish and other crustaceans and the cell walls of bacteria and algae. Its reserves in nature are second only to cellulose. It is a non-toxic, easily degradable, environmentally friendly natural high Molecular materials. As an antibacterial agent, chitosan has good biocompatibility, broad-spectrum antibacterial properties, high sterilization rate, and high antibacterial activity. It has antibacterial properties against Escherichia coli, Staphylococcus aureus, Bacillus subtilis, Proteus, etc. It has received a lot of attention in the field of antibacterial finishing. Plasma technology is used to pretreat the PLA spunbond nonwoven material, and then the surface of the material is finished with chitosan to improve the antibacterial properties of the PLA spunbonded nonwoven material. The surface of the unfinished PLA spunbond nonwoven material is smooth and flat. After finishing with chitosan alone, there is only a small amount of chitosan on the surface of the material, and the distribution is uneven. After plasma-chitosan combined finishing, the surface of PLA spunbonded nonwoven material is evenly coated with a large number of chitosan molecules, and the grafting effect is obviously improved. This is mainly because during the pretreatment process of PLA spunbonded nonwoven material by the plasma cleaning machine, the surface of the material introduces active functional groups such as oxygen and ammonia to improve the chemical activity of the material surface, thereby promoting PLA and The stable chemical combination of chitosan macromolecules enables the uniform deposition rate of chitosan macromolecules on the surface of PLA spunbonded nonwoven materials. The original surface of PLA spunbond nonwoven material is relatively smooth, which is not conducive to the physical adhesion of chitosan macromolecules to it, and the PLA macromolecular chain itself lacks polar groups that are prone to chemical reactions, showing high chemical inertness. Therefore, it is difficult to chemically combine with chitosan macromolecules, resulting in a very low grafting rate of PLA spunbonded nonwoven materials in chitosan solution, even when the mass fraction of chitosan is 1%, the grafting rate reaches a high value. , And only 0.95%. After pretreatment by a plasma cleaning machine, polar functional groups such as hydroxyl and carboxyl groups are introduced on the surface of the polylactic acid, which promotes the reaction between the surface of the material and the chitosan macromolecules. Therefore, after plasma pretreatment, the grafting rate of chitosan on the surface of PLA nonwoven material is significantly improved. After pretreatment by a plasma cleaning machine, the surface of the material introduces active groups such as hydroxyl and carboxyl groups, which form a stable chemical bond with the chitosan macromolecules through hydrogen bonding, which promotes the grafting of more chitosan macromolecules On the surface of PLA nonwoven materials, the antibacterial properties of PLA nonwoven materials are significantly improved.

MORE +
Five advantages of using low-pressure vacuum plasma cleaning machine to spray the product

Five advantages of using low-pressure vacuum plasma cleaning machine to spray the product

Five advantages of using low-pressure vacuum plasma cleaning machine to spray the product: Low-pressure vacuum plasma cleaning machine is a process equipment that uses low-temperature plasma to plasma surface treatment of materials, which can realize surface cleaning, activation, corrosion and coating of materials. Low-pressure vacuum plasma cleaners will also use surface treatment processes, and plastic spray treatment is one of them. The surface treatment process of parts refers to the formation of a surface layer with mechanical, physical and chemical properties that are different from the material of the part itself through human intervention. After surface treatment, we can get the properties that meet our needs and requirements. Plastic spray treatment is a commonly used surface treatment process for low-pressure vacuum plasma cleaning machines, and is mainly used for the surface treatment of sheet metal parts and appearance parts of low-pressure vacuum plasma cleaning machines. Plastic spraying, also known as electrostatic powder spraying, is a relatively common metal surface treatment and decoration technology. Compared with general spraying surface treatment, its treatment advantages are reflected in advanced technology, energy saving and environmental protection, safety and reliability, and bright color. The vacuum plasma cleaner has the following advantages after spraying the parts: (1) Strong corrosion resistance; (2) It has good wear resistance; (3) It has strong aging resistance; (4) Strong anti-aging ability; (5) Beautiful appearance and easy cleaning. Every detail of the plasma processing equipment has been repeatedly demonstrated and tested. When a low-pressure vacuum plasma cleaning machine is selected, the reliability of the plastic-sprayed sheet metal parts and appearance parts can be reflected in use. So a reasonable choice is also a science. If you have any questions, please click on the online customer service of Chengfeng Zhizao, and Chengfeng Zhizao will serve you wholeheartedly.

MORE +
< 1...919293...132 > proceed page
图片名称

CRF

National Service Hotline

136 3267 5935

Contact Email

shaobo@sfi-crf.com

Address:1303, Building 3, Manjinghua Science and Innovation Workshop, No.6 Songjiang Road, Songgang Street, Bao'an District, Shenzhen, China.

图片名称

Add WeChat
Get related information

Links

Apply to exchange friend links

Copyright © Shenzhen Chengfeng Smart Co.

京ICP备10002622号-38

粤公网安备 44030602005200号

图片名称

Cheng Feng Zhi Zuang a focus on plasma research and development for 20 years

We

The services of

Inquire for free sample testing

1-to-1 program customization

24-hour online after-sales service

Source manufacturer

Get the program
%{tishi_zhanwei}%
图片名称

Scan the code for information

诚峰智造