Flame-retardant plastics

The institute’s activities in the field of flame-retardant plastics are centred primarily around the modification of thermoplastic plastics by addition of fireproofing agents both with and without halogens, as well as synthetic mixture modifications designed to achieve the desired flame-retardant polymer properties. The fireproof composites can be manufactured with both extrusion techniques and through the use of reactive comonomers in synthesis processes (e.g. flame-retardant polyester). Application areas include the electronics, automobile manufacturing and construction industries.

 

Selection of current activities

  • Reducing the effective amount of the flame- retardant additive by using of nanoscale materials (e.g. organoclays) as synergists, while still retaining fire resistance properties and the best possible mechanical attributes (e.g. 50% reduction of the halogen/antimony oxide content in flame-resistant PC/ABS blends by using of a layered silicate as a synergist)
  • Utilisation of comonomers with various heteroatoms in polyester synthesis processes in order to improve flame-retardant properties

 

Technical equipment

Plastics Technology Centre

  • Co- rotating twin-screw extruder (L/D: 52, L/D:40), including dosage unit for granules, powders and liquids; peripheral equipment (dryers, machines for strand and underwater pelletising)
  • Injection moulding machine (2 components injection mould, sandwich, up to 350°C)

Synthesis Technology Centre

  • 5-litre and 10-litre autoclaves for polyamides (up to 25 bars, max. 330°C)
  • 2-litre, 10-litre autoclaves for polyester ( PET,PBT,PTT,PEN and polycarbonates)
  • Polymer synthesis line (e.g. continual PET synthesis up to 50kg/h, or batch-wise (30kg/batch) on the basis of terephthalic acid)
  • Cast polyamide synthesis line
  • Additive preparation lines (dispersion devices, wet- grinding  and dry-grinding  mills, spray dryer)