Wuxi Taixian Powder Technology Co., Ltd.

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PARTICLE DESIGNING

VSN Series Particle Composite Design System

The VSN Series is a dry-process particle composite design (PCD) system. It bonds host and guest powders through repeated mechanical collision, friction, and shear inside a sealed horizontal chamber — no solvents, no binders, no thermal treatment. Three processing modes — embedding, dry encapsulation, and spheronization — cover a broad range of surface modification requirements in a single vessel.

SPECIFICATIONS

Model Scale Chamber Volume Throughput
VSN-0.2 Laboratory 0.4 L 3–10 min/batch
VSN-10 Production 10 L 30–200 kg/h

OPERATING PRINCIPLE

rotor-blade-stator assembly rotates inside the horizontal sealed chamber.

  • Repeated high-energy impact, friction, and shear forces act on all particle surfaces simultaneously
  • High-velocity airflow maintains full powder dispersion throughout the cycle
  • Product discharges in a single pass – no external classifier required

THREE PROCESSING MODES

  1. Embedding — Guest particles mechanically fixed onto the host surface. No melting, no sintering. Host structure preserved.
  2. Dry Encapsulation — Resin or wax-phase guest particles spread into a continuous film under impact energy. No liquid phase required.
  3. Spheronization — Irregular particles reshaped toward spherical geometry through sustained inter-particle contact. Bulk density increases systematically.

KEY FEATURES

  • Solvent-free, binder-free, no thermal treatment
  • Single-vessel operation — no intermediate transfer steps
  • Direct scale-up: VSN-0.2 parameters transfer to VSN-10 without re-optimization
  • Inert atmosphere compatible for oxidation-sensitive materials

EXPERIMENT RESULTS

Embedding – Iron Alloy / Indium Oxide

  • Host: iron-alloy carrier powder
  • Guest: In₂O₃ nanoparticles
  • Result: Uniform surface coverage confirmed. Guest particles anchored without agglomeration.

Embedding – HAP onto PSZ Ceramic

  • Host: partially stabilized zirconia (PSZ)
  • Guest: hydroxyapatite (HAP)
  • Result: Continuous HAP layer formed on PSZ surface. Host particle integrity maintained.

Embedding – TiO₂ onto Nylon Matrix

  • Host: nylon powder
  • Guest: TiO₂ nanoparticles
  • Result: TiO₂ uniformly distributed across nylon surface. Photocatalytic composite confirmed.

Embedding – CNT onto Nylon

  • Host: nylon powder
  • Guest: carbon nanotubes (CNT)
  • Result: CNT embedded and dispersed onto nylon carrier. Conductive composite achieved.

Dry Encapsulation – Boride onto Nickel Superalloy

  • Host: nickel-based superalloy powder
  • Guest: boride particles
  • Result: Continuous encapsulation film formed. Cross-section SEM confirmed shell uniformity.

Dry Encapsulation – API in Controlled-Release Polymer

  • Host: active pharmaceutical ingredient (API)
  • Guest: controlled-release polymer
  • Result: Dissolution profile adjustable by rotor speed and cycle time. No solvent residue.

Spheronization – Graphite Anode Powder

  • Material: natural graphite for lithium-ion battery anode
  • Result: Bulk density increased by +70%. Tap density improvement verified.

APPLICATIONS

Application Area Description
Lithium Battery Anode Material Graphite spheronization; bulk density increase up to +70%
Advanced Ceramics HAP embedded onto PSZ; TiO₂ nanoparticles onto nylon matrix
Functional Polymer Composites CNT embedding onto nylon carrier for conductive composite
Thermal Spray Feedstock Boride dry-encapsulated onto nickel-based superalloy powder
Pharmaceutical Powder API dry-encapsulated in controlled-release polymer matrix

Enquiry

Tell us your material, target particle size, and throughput. We will advise on
model selection and run a trial on your own powder before you commit to equipment.

Yibin Andy Wei — Application Engineer
Email: [email protected]
LinkedIn: Yibin Andy Wei
WhatsApp: +1 380 900 2442

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