Supercritical Fluid Particle Coating and Microencapsulation System

Supercritical Fluid Particle Coating and Microencapsulation System

Model: SFP-MC

The proposed SFP-MC is a stirred-vessel development system for depositing coating materials onto particles and preparing encapsulated formulations using CO₂-assisted processes. It combines controlled fluid addition, mixing, temperature management and product recovery. The base concept uses batch or semi-batch antisolvent-assisted deposition; a CO₂-soluble coating route is an alternative only for compatible materials. It is intended for formulation development, not a universal core-shell particle generator.

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FLOSN / PRODUCT FEATURES

Product Features

6 FEATURES

Core particles and a coating formulation are brought into a controlled pressure environment. Changes in solvent quality or fluid composition cause the coating material to deposit or precipitate while mixing limits settling and helps distribute material. Competing homogeneous nucleation, agglomeration and attrition can produce free particles or matrix composites instead of continuous shells. Surface coverage, loading and release behavior therefore require microscopy and chemical analysis of each formulation.

Magnetically Coupled Mixing

A pressure-compatible drive supports suspension and deposition studies without an exposed rotating shaft seal at the main vessel wall.

ndependent Formulation Addition

Separate liquid and CO₂ delivery allow feed-composition and addition-rate studies.

Modular Product Retention

Removable supported filters and collection parts allow product-recovery and cleaning methods to be developed.

Controlled Thermal History

Vessel heating and cooling are proposed to limit uncontrolled thermal exposure of the formulation.

Formulation Traceability

Feed settings, temperature, pressure and stirrer speed are recorded with the batch identifier.

Evidence-Based Coating Assessment

Core-shell morphology and encapsulation efficiency are sample-specific results; no fixed efficiency is assumed.

FLOSN / TECHNICAL PARAMETERS

Model & Parameters

SELECTED MODEL

CFD-SA30

Model-specific specifications
Chamber volume
30 mL
Operating pressure
0–2,000 psi
Power consumption
600 W
Exhaust flow rate
0–0.5 SLPM

Chamber & operation

Chamber dimensions · I.D. × depth (mm)
31.75 × 38.1 mm
Chamber dimensions · I.D. × depth (in)
1.25 × 1.5 in
Operating pressure · MPa
0–13.8 MPa
Maximum safe working pressure
2,200 psi (15.2 MPa)
Heating method
PTC electric heating / cartridge electric heating
Overall dimensions · W × D × H
Not specified
SELECTED MODEL

CFD-SA100

Model-specific specifications
Chamber volume
100 mL
Operating pressure
0–2,000 psi
Power consumption
600 W
Exhaust flow rate
0–1 SLPM

Chamber & operation

Chamber dimensions · I.D. × depth (mm)
63.5 × 31.75 mm
Chamber dimensions · I.D. × depth (in)
2.5 × 1.25 in
Operating pressure · MPa
0–13.8 MPa
Maximum safe working pressure
2,200 psi (15.2 MPa)
Heating method
PTC electric heating / cartridge electric heating
Overall dimensions · W × D × H
Not specified
SELECTED MODEL

CFD-SA200

Model-specific specifications
Chamber volume
200 mL
Operating pressure
0–2,000 psi
Power consumption
600 W
Exhaust flow rate
0–1 SLPM

Chamber & operation

Chamber dimensions · I.D. × depth (mm)
63.5 × 63.5 mm
Chamber dimensions · I.D. × depth (in)
2.5 × 2.5 in
Operating pressure · MPa
0–13.8 MPa
Maximum safe working pressure
2,200 psi (15.2 MPa)
Heating method
PTC electric heating / cartridge electric heating
Overall dimensions · W × D × H
Not specified
SELECTED MODEL

CFD-SA500

Model-specific specifications
Chamber volume
520 mL
Operating pressure
0–2,200 psi
Power consumption
1,500 W
Exhaust flow rate
0–2 SLPM

Chamber & operation

Chamber dimensions · I.D. × depth (mm)
114.3 × 50.8 mm
Chamber dimensions · I.D. × depth (in)
4.5 × 2 in
Operating pressure · MPa
0–15.2 MPa
Maximum safe working pressure
2,500 psi (17.2 MPa)
Heating method
PTC electric heating / cartridge electric heating
Overall dimensions · W × D × H
Not specified
SELECTED MODEL

CFD-SA1000

Model-specific specifications
Chamber volume
1,080 mL
Operating pressure
0–2,200 psi
Power consumption
1,500 W
Exhaust flow rate
0–2 SLPM

Chamber & operation

Chamber dimensions · I.D. × depth (mm)
165.1 × 50.8 mm
Chamber dimensions · I.D. × depth (in)
6.5 × 2 in
Operating pressure · MPa
0–15.2 MPa
Maximum safe working pressure
2,500 psi (17.2 MPa)
Heating method
Cartridge heater heating
Overall dimensions · W × D × H
Not specified
SELECTED MODEL

CFD-SA1800

Model-specific specifications
Chamber volume
1,860 mL
Operating pressure
0–2,200 psi
Power consumption
2,000 W
Exhaust flow rate
0–0.5 SLPM

Chamber & operation

Chamber dimensions · I.D. × depth (mm)
215.9 × 50.8 mm
Chamber dimensions · I.D. × depth (in)
8.5 × 2 in
Operating pressure · MPa
0–15.2 MPa
Maximum safe working pressure
2,500 psi (17.2 MPa)
Heating method
Cartridge heater heating
Overall dimensions · W × D × H
Not specified
Shared specifications · all models

Materials & pressure safety

Chamber material
SS316L
Optional materials
Hastelloy C276, Inconel 625, Monel 400, Titanium Grade 2, PTFE lining
Pressure safety system
Electronic pressure monitoring combined with mechanical over-pressure relief protection

Environment & utilities

Operating temperature range
−30 to +60 °C
Operating ambient humidity
20%–70% RH, non-condensing
Power supply
120 / 220 V AC, 50–60 Hz
CO₂ gas requirement
High-purity liquid CO₂ supply; recommended purity >99.9%

Cooling, control & filtration

Cooling system
Integrated closed-loop cooling; the internal chiller loop accelerates cooling and reduces CO₂ consumption
Control system
LCD touchscreen; semi-automated control with programmable timer operation and electronic sensor monitoring
Filtration system
Double T-Filter, Cat. No. 8785; two passes through 0.5 μm filters; >99.5% retention

Samples & chemical compatibility

Compatible sample types
Biological specimens, microscopy samples, hydrogels, aerogels, porous materials, polymers, and other structure-sensitive materials
Compatible solvents
CO₂-miscible solvents commonly used in sample preparation, including ethanol, acetone, methanol, and other laboratory solvents
Chemical compatibility warning
Strongly acidic, strongly alkaline, oxidizing, or highly toxic solvents require prior compatibility evaluation before use
Standard configuration & options

Standard configuration

  • High-pressure viewing window chamber
  • Integrated chamber illumination system
  • Integrated condensation and gas-liquid separation system
  • Non-mechanical CO₂ mixing and exchange system
  • Controlled slow filling and venting system
  • Precision vent flow meter
  • Standard stainless steel CO₂ supply line
  • Anti-static exhaust tubing
  • Replacement O-ring seal kit
  • Installation tool kit
  • User operation manual
  • Factory acceptance test report
  • Warranty and technical support

Optional configurations

  • Interchangeable sample holders
  • Custom sample chamber inserts
  • Magnetic stirring module
  • High-temperature / high-pressure chamber customization
  • Corrosion-resistant alloy chamber upgrade
  • Microscopy sample holder kit

FLOSN / APPLICATIONS

Applications

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