SOLUTIONS & APPLICATIONS


Barium Sulphate For Plastic
Overview

Synthetic barium-sulfate-based nano-particles are widely used in the thermoplastics field. With itsBLANC FIME™range, Gemme currently produces the world's finest-particled barium sulfate system, with a particle diameter of less than 100 nm.

The high specific surface area of this product (> 25m²/g) opens up to it applications in the field of polymer reinforcement (composites) and control of rheology/viscosity (in adhesives, for example).

Ultra-fine barium-sulfate-based systems are also used for nucleation of crystalline thermoplastics. The product's chemical inertness, insensitivity to temperature, high transparency and good dispersibility permit control of the speed and degree of crystallization.

Mechanical and optical product properties, and also process parameters such as cooling times, can thus be precisely adjusted. In addition, nano-fine barium sulfate absorbs X-ray energy. Plastic toy parts swallowed by children can thus be quickly located on the X-ray viewer if the masterbatch used in production of the plastic containedBLANC FIME™as an additive.BLANC FIME™conforms to the relevant legal codes.



How can BLANC FINE™ assist in your formulation?


  • Broad product line-up of functional pigments, additives and extenders
  • Consistent high quality in ISO 9001:2000 certified plants
  • Expert research and technical service. . .supplied to you with an outstanding service.






Our Solutions


High-purity synthetic barium sulfates are used as fillers and extenders in an astonishingly diverse range of plastics. BLANC FIME™ is precipitated with a defined particle diameter from purified and filtered barium salt and sodium sulfate solutions. Special purification stages, gentle drying conditions and complex grinding operations ensure consistently high quality.

All BLANC FIME™ products are notable for their high purity, minimal sieve residue, and extra-low abrasion. Thanks to its excellent lightness, BLANC FIME™ is internationally accepted as the white standard for spectral photometry.

In translucent plastic sheet, special BLANC FIME™ grades with precisely defined particle sizes ensure systematic light scatter.

In fluorescent-tube shades, for instance, they permit uniform illumination of the surrounding area. Precisely defined particle sizes and geometries are prominent characteristics of all BLANC FIME™ barium sulfate products and thus open the way to even more specialized applications in the plastics field.

n injection moulding for the automotive industry, for instance, and in the production of computer housings, the BLANC FIME™ range of products facilitates removal of the plastic component from the mould, while simultaneously enhancing the material's strength.


 



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