Overview of plasma surface treatment machines for plasma surface treatment machines

Plasma technology is a good solution to the problem that coated paper, varnishing paper, coated paper, aluminized paper, UV coating, PP, PET and other materials are not firmly bonded or cannot be bonded. In the past, many enterprises used to use traditional local lamination, local glazing, surface grinding or slurry pasting, and the use of special special glue to improve the bonding method. After plasma technology treatment, ordinary water-based glue can be well bonded, and there is no need to change different glues because of different cardboards.

It not only effectively solves the process problems of glued box and glue box production, but also has a good guarantee for the process, efficiency and quality of the enterprise.

Plasma surface treatment machine.

The principle of plasma surface treatment is that the plasma temperature is close to room temperature, which provides suitable conditions for the surface modification of heat-sensitive polymers.

Through low-temperature plasma surface treatment, a variety of physical and chemical changes occur on the surface of the material, or etch and roughen, or form a dense cross-linked layer, or introduce oxygen-containing polar groups, so that the hydrophilicity, cohesiveness, dyeability, biocompatibility and electrical properties are improved.

Process plasma treatment is one of the most effective processes for cleaning, activating and coating surfaces and can be used to treat a wide range of materials, including plastics, metals or glass.

The plasma treatment machine can clean the surface to remove release agents and additives from the surface, and its activation process can ensure the quality of the subsequent bonding process and painting process, and for the coating treatment, the surface characteristics of the composite can be further improved. With this plasma technology, the surface of the material can be efficiently pre-treated according to the specific process requirements.

Pointe plasma treatment is one of the more common methods of plasma surface modification. Its principle of action is mainly as follows:

A large number of ions, excited molecules, free radicals and other active particles in the plasma act on the surface of the solid sample, which not only removes the original pollutants and impurities on the surface, but also produces etching effect, roughens the surface of the sample, forms many fine potholes, and increases the specific surface of the sample. Improves the wetting properties of solid surfaces.

The particle energy in the plasma is 0 20 EV, and most of the bonds in the polymer can be 0 10 EV, so after the plasma acts on the solid surface, the original chemical bonds on the solid surface can be broken, and the free radicals in the plasma form a network cross-linked structure with these bonds, which greatly activates the surface activity.

Dayn plasma cleaner.

The principle of action of plasma surface treatment:

a) Etching on the surface of the material.

Physical action A large number of ions, excited molecules, free radicals and other active particles in the plasma act on the surface of the solid sample, remove the original pollutants and impurities on the surface, and will produce etching effect, roughen the surface of the sample, form many fine potholes, and increase the specific surface of the sample. Improves the wetting properties of solid surfaces.

b) Activation of bond energy, cross-linking.

The particle energy in the plasma is 0 20 EV, and most of the bonds in the polymer can be 0 10 EV, so after the plasma acts on the solid surface, the original chemical bonds on the solid surface can be broken, and these bonds in the free radicals in the plasma form a network of cross-linked structures, which greatly activates the surface activity.

c) Formation of new functional groups.

If reactive gases are introduced into the discharger, a complex chemical reaction will occur on the surface of the activated material, and new functional groups will be introduced, such as hydrocarbon groups, amino groups, carboxyl groups, etc., which are all active groups and can significantly improve the surface activity of the material.

Surfaces treated with plasma technology, whether plastic, metal or glass, can achieve an increase in surface energy. Through such a treatment process, the surface state of the product can fully meet the requirements of subsequent coating, bonding and other processes.

Atmospheric pressure plasma technology has an extremely wide range of applications, which makes it a core surface treatment process that has attracted much attention in the industry. By using this innovative surface treatment process, the goals of high quality, high reliability, high efficiency, low cost and environmental protection pursued by modern manufacturing processes can be achieved.

The plasma treatment process allows for selective surface modification.

Activation: Greatly improves the wetting properties of the surface and forms an active surface cleaning: removal of dust and oil, fine cleaning and removal of static electricity.

Coating: Improves the adhesion of the surface by providing a functional surface through surface coating treatment.

Improve the reliability and durability of surface bonding.

As we all know, solids, liquids, and gases are the three common states of matter. We can move between the two states by increasing or decreasing energy (e.g. heating and cooling). If we continue to increase enough energy, the gas molecules will be ionized (lose one or more electrons) and thus carry a net positive charge.

If enough molecules are ionized to affect the overall electrical properties of the gas, the result is called plasma. Therefore, plasma is often referred to as the fourth state of matter.

Matter is made up of molecules, which are made up of atoms, which are made up of positively charged nuclei and negatively charged electrons that surround it. When heated to a high enough temperature or for other reasons, the outer electrons are freed from the nucleus and become free electrons, just like students running to the playground after class to play at random. When electrons leave the nucleus, this process is called ionization.

At this time, the matter becomes a uniform "paste" composed of positively charged nuclei and negatively charged electrons, so people jokingly call it ionic paste, and the total amount of positive and negative charges in these ionic pastes is equal, so it is approximately electrically neutral, so it is called plasma.

What is plasma surface treatment?

Plasma surface treatment technology is to use plasma surface treatment equipment to carry out certain physical and chemical modification of the surface of the material to improve the surface adhesion. The physical and chemical reaction between plasma high-energy particles and the surface of the material can be used to achieve the purpose of activation, etching, decontamination and other processes on the surface of the material, as well as the improvement of various surface properties such as friction factor, adhesion and hydrophilicity of the material.

The role of plasma surface treatment:

Surface Cleaning:Cleans organic matter and oxide layers such as grease, oil, and grease particles that are invisible to the naked eye.

Surface etching:By treating the gas, the etched matter is discharged into the gas phase.

Surface modification:In the case of polytetrafluoroethylene (PTFE), for example, it cannot be printed or bonded without being treated. The use of plasma treatment maximizes the surface while creating an active layer on the surface so that PTFE can be bonded and printed.

Surface Activation:It is mainly used to clean plastic, glass, ceramics and non-polar materials such as polyethylene (PE), polypropylene (PP), polytetrafluorofluorine (PTFE), polyoxymethylene (POM), polyphenylene sulfide (PPS).

Surface Coating:In plasma coating, two gases enter the reaction chamber at the same time, and the gases polymerize in a plasma environment. This application is much more demanding than activation and cleaning.

Typical applications are the formation of protective films for fuel containers, anti-forest scrubbing surfaces, polytetrafluoro(PTFE)-like coatings, waterproof coatings, etc.