DBD Argon Gas Surface Treatment Plasma System

1. Discharge PLASMA  Product Specifications

 

Operating Power: AC 220V, 10A, Single Phase, 60Hz

Product Size: 380(L) x 150(W) x 280(H) / Weight: 20kg

Processing Width: 300mm

Operating Frequency: 13.56MHz / RF Power: 600W

Cooling Method: Air-cooled/Water-cooled (Optional)

Precautionary Environment: Installation location free of corrosive or explosive gases

Ambient Temperature: 0~50℃ / Ambient Humidity: 20~80% (no condensation)

Vibration: 0.5G (4.9m/s²)

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DBD Argon Gas Surface Treatment Plasma System

Technical Report on Functions and Application Fields

1. Introduction

The Dielectric Barrier Discharge (DBD) Argon Gas Plasma System is a surface-activation device designed to modify the physicochemical properties of various materials through low-temperature, non-thermal plasma. By utilizing argon as the process gas, the system enables stable discharge characteristics, produces highly reactive species, and offers superior control for sensitive material processing. This technology is widely used in industrial manufacturing, electronics, automotive components, aerospace materials, and medical device fabrication.

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2. Operating Principle

2.1 Dielectric Barrier Discharge (DBD) Mechanism

DBD plasma is generated between two electrodes separated by at least one dielectric barrier. When high voltage is applied:

• Micro-discharges occur uniformly across the surface
• Energetic electrons interact with argon gas
• Excited argon species transfer energy to the material surface
• Surface energy increases without thermal damage

Because the dielectric barrier prevents continuous arcing, the process is stable, safe, and suitable for heat-sensitive substrates such as plastics, polymers, films, and composites.

2.2 Role of Argon Gas

Argon is an inert noble gas, providing several advantages:

• Produces a clean, residue-free plasma
• Offers uniform discharge and stable micro-arcs
• Minimizes oxidation and thermal impact
• Enables precise surface activation without chemical contamination

This makes argon plasma ideal for high-performance surface functionalization.

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3. Key Functions of the System

3.1 Surface Activation

Argon plasma increases surface free energy, allowing improved interaction with liquids, adhesives, or coatings. Chemical bonds on the surface become more reactive, enabling stronger bonding behavior.

3.2 Cleaning and Organic Contaminant Removal

The system removes:

• Organic residues
• Oils and greases
• Production by-products
• Weak boundary layers

This results in a chemically clean and highly active surface without the use of solvents.

3.3 Adhesion Improvement

By modifying surface tension and increasing the number of functional groups, the system dramatically enhances adhesion performance for:

• Paints and coatings
• Glue and adhesives
• Functional inks for printing
• Laminating films

This is critical in industries where bonding failure cannot be tolerated.

3.4 Etching and Micro-Roughening (Soft Etching)

Although argon is chemically inert, energetic ion bombardment produces physical micro-etching, generating slight surface roughness beneficial for mechanical adhesion.

3.5 Surface Sterilization

Argon plasma’s energetic ions and UV emissions can inactivate microorganisms on sensitive surfaces without heat or chemical residues.

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4. Major Application Fields

4.1 Electronics and PCB Manufacturing

• Pre-treatment for epoxy encapsulation
• Surface activation of polyimide, PET, and PCB substrates
• Adhesion improvement for solder masks and conformal coatings
• Cleaning semiconductor packaging materials

4.2 Automotive Components

• Surface activation for rubber profiles and gaskets
• Pre-bonding treatment for plastic components
• Activation of sensors and connector housings (PA, PP, ABS)
• Coating preparation for headlights, dashboards, air-intake modules

4.3 Medical Devices and Biotechnology

• Activation of tubing (PVC, silicone, PTFE)
• Surface preparation for biomedical coatings
• Sterilization of polymer-based components
• Enhancing bonding for disposable plastic parts

4.4 Aerospace and Advanced Composites

• Pre-treatment of carbon fiber reinforced plastics (CFRP)
• Coating improvement for flight-critical composite parts
• Lightweight polymer component activation

4.5 Printing, Packaging, and Film Processing

• Ink adhesion on PE, PP, PET films
• Activation of multilayer packaging materials
• Surface cleaning for laminates and flexible circuits

4.6 General Industrial Manufacturing

• Adhesive bonding for plastics, glass, and metals
• Paint adhesion improvement
• Pre-coating treatment for powder coating and electrostatic painting
• Surface cleaning in assembly processes

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5. Advantages of DBD Argon Plasma Technology

• Cold processing suitable for heat-sensitive materials
• Chemical-free process, environmentally friendly
• Fast and uniform treatment across large surfaces
• Low maintenance and operational stability
• No thermal deformation of polymers or thin films
• Precise control of plasma intensity and activation level

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6. Conclusion

The DBD Argon Gas Surface Treatment Plasma System provides a powerful, clean, and efficient method for modifying surface properties across a wide range of industrial materials. By enhancing adhesion, cleaning contaminants, and improving bonding strength, argon plasma technology has become a cornerstone for modern manufacturing that demands precision, reliability, and high-performance surface functionality.

Its versatility ensures continued adoption in advanced industries such as electronics, automotive, medical devices, aerospace, and packaging, where optimized surface properties are essential.

 

Reference
1. Plasma Surface Treatment Society #PlasmaNewspaperUnion
https://plusji.tistory.com/
https://aitoolbox.tistory.com/
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