Surface active modification treatment of PET coil film by plasma cleaning machine!

Plasma cleaning machine is widely used in various technical fields such as packaging, anti-corrosion coating, capacitor preparation, magnetic tape, and even medicine and health due to its strong fatigue resistance, toughness, high melting point, excellent isolation characteristics, solvent resistance, and excellent wrinkle resistance.

However, due to the low surface free energy of PET film material, its processing characteristics such as wetting, adhesiveness, and printability are weak, which greatly limits its application in the specific production of PET film. The plasma cleaning machine can not only improve the surface roughness of the film by etching, but also introduce a large number of oxygen-containing polar groups on the film surface, enhance the hydrophilicity and surface energy of PET film, and achieve surface modification of PET film material without damaging the film characteristics.

Therefore, plasma cleaning equipment can enhance the surface properties of PET film materials, thereby improving their surface wettability, adhesiveness, and printability. By using an atmospheric jet rotary plasma cleaning machine to treat PET film materials, it can be observed that with the increase of plasma cleaning time, some irregular sheet-like structures appear on the surface of PET film, and the roughness of the film surface also increases.

After the surface of the PET film, there are also large areas of white fine grain structures, which are composed of nanoscale fine particles. This is because the plasma cleaning equipment has played a certain etching role on PET film.

Plasma cleaning equipment cleaning belongs to a high-precision dry cleaning method. The principle is to use the high-pressure electromagnetic field generated by the radio frequency source in a vacuum environment to excite process gases such as oxygen, nitrogen, hydrogen, etc. into highly reactive or high-energy ions. Through chemical reactions or physical actions, the material surface is treated to achieve molecular level pollution removal (generally with a thickness of about 3-30nm), improve surface activity, and adopt different cleaning processes for different pollutants to achieve the best cleaning effect.

The application of plasma cleaning equipment in film surface treatment can bring the following significant effects:

1. Improve the adhesion of the film surface: Plasma cleaning machines can enhance the roughness and polarity of the film surface through treatment, thereby improving the adhesion, coating, or printing between the film and other materials.

2. Enhance the hydrophilicity of the film: After plasma treatment, the hydrophobicity of the film surface will be transformed into hydrophilicity, improving its wettability and absorption capacity.

3. Optimize the electrical properties of thin films: Plasma cleaning machines can improve the conductivity, anti-static properties, and insulation performance of thin films.

4. Uniform and thorough cleaning effect: The plasma cleaning machine provides uniform and thorough cleaning effect, which can achieve micro level cleanliness.

5. Environmentally friendly and pollution-free: The cleaning process does not involve chemical substances, which is pollution-free to the environment and harmless to human health.

6. Automated cleaning improves efficiency: Plasma cleaning machines can achieve automated cleaning, improving production efficiency and cleanliness.

7. Low temperature treatment protective film: The plasma cleaning machine has a lower temperature and will not easily break through the film, making it particularly suitable for thin film products with softer texture.

8. Improve the surface morphology and chemical composition of thin films: Plasma cleaning machines can alter the surface morphology and chemical composition of film materials, enhancing their stability, corrosion resistance, wear resistance, UV resistance, and other properties.

9. Suitable for various film materials: The plasma treatment range includes polyester film, optical film, electronic film, metal film, silicone film, plastic film, graphene film, etc.

In summary, plasma cleaning equipment provides various advantages in film surface treatment, including improving adhesion, enhancing hydrophilicity, optimizing electrical performance, being environmentally friendly and pollution-free, and protecting films through low-temperature treatment, making it the preferred technology for film surface treatment.