Microencapsulation and Microspheres
 
Phenolic Resin and Graphite Microspheres
Additional Types of Microspheres
 
Our micropshere types BRHF, BRGU, BRFM, BRGC and BRACC are heat-hardened resin microspheres made of phenol. The phenol is synthesized by our proprietary polymerization process. The available diameters range from several microns to several thousand microns. Depending on the grade of crosslinking the types range from BRGU and BRFM to the totally duroplastic BRHF type are available. BRHF’s angle of repose is much smaller than one of former phenol resins.
 
The BRGC type is an amorphous carbon sphere, whereas the BRACC type is an active carbon type sphere.
 

Typical Applications:
  • BRFM, BRGU Type : Molding materials, Fireproof materials, Carbon materials, Tribological materials, Abrasives, Paints, Adhesives, Rubber additives
  • BRHF Type : Carbon materials, Active carbon, Tribological materials, Abrasives, Resin reforming materials, Filling materials, Bearings

Features of spherical resin:

  • Heavy molecular weight (more than 3,000 is assumed) makes it highly stable for heat
  • Functions well with rubber etc., because of its spherical shape
  • Does not cause caking and stable to store (BRFM)
  • Less odor as it does not need hexamine to harden, and no erosion (BRFM)
  • Safer because it contains hardly any free phenol and formalin (BRHF)
  • Less gas occurs during the carbonizing process, and can obtain fine carbonized products (BRHF)
Spherical phenol resin has the above mentioned features. However, the structure is condensation of phenol/formalin, so it is used in the conventional phenol resin field, but it also can be used for larger products and phenol products. Carbonized product makes the features more prominent.
 
 

 


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Vobis, LLC provides fabrication, evaporation and granulation components, and modular evaporation, granulation and pelleting systems.  We support our technologies with experienced engineering and testing services. Our fabrication services, evaporators, crystallizers, distillation systems, multiple effect evaporators, falling film evaporators, thin film, wiped film and short path evaporators, extruders, pellet mills, spheronizers, and spray dryers have proven themselves in multiple client applications.  Our formulation development and contract production services are available for Evaporation as well as Microencapsulation, Microsphere forming, and Granulation with Extrusion and Spheronization.
ASME Fabrication, Evaporators, Thin- Film Evaporators, Ethanol Plant Fabrication, Distillation Systems, Short- Path Evaporators, Falling FIlm Evaporators, Multiple Effect Evaporators, Crystallizers, Solvent Recovery Systems, Mixers, Extruders, Spheronizers, Fluid Bed Systems, Fluid Bed Dryers
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