The NE-PE13X Rotary Low Pressure Plasma Treatment System effectively resolves the issues of incomplete and non-uniform plasma treatment caused by particle agglomeration in fine powder samples. During the plasma treatment process, the rotating module within the vacuum chamber continuously rotates and rolls the powder-loaded container, causing the powder to tumble in the vacuum environment. This dynamic motion ensures that even particles not initially exposed to the surface are fully contacted by the plasma, achieving thorough and uniform treatment. Compared to traditional powder modification methods (e.g., wet chemical coating, high-temperature sintering), this plasma-based technology offers significant advantages:

1. No External Additives Required: Eliminates the use of organic solvents or surfactants, avoiding contamination or secondary waste.

2. Ambient Temperature Processing: Operates at near-room temperature, preserving heat-sensitive material properties (e.g., polymer crystallinity).

3. Rapid Reaction: Typical treatment times range from 1–30 minutes, far shorter than hours-long thermal processes.

4. Surface-Specific Modification: Optimizes the physicochemical structure of the powder surface (e.g., introducing functional groups, nano-roughness) while maintaining the bulk properties (e.g., particle size distribution, mechanical strength).

Through plasma treatment modification, the surface of powder particles can be tailored to achieve specific objectives such as hydrophilicity or hydrophobicity, altered surface atomic layer structures, and functional group introduction. In summary, the primary goals of powder surface modification via plasma treatment include:

1. Enhanced Dispersion in Media: Prevent particle agglomeration by reducing van der Waals forces through surface charge modification (e.g., introducing -OH groups for electrostatic repulsion).

2. Increased Surface Reactivity: Create active sites (e.g., dangling bonds, radicals) for covalent bonding with polymers or catalysts.

3. Novel Physicochemical Properties:

   Optical: Adjust light absorption/emission via surface plasmon resonance (e.g., Au nanoparticles for biosensing).

   Electrical: Improve conductivity through graphene-like carbon layer deposition.

4. Controlled Catalytic Performance: Tune surface polarity and active site density (e.g., oxygen vacancies in metal oxides for CO₂ reduction).