PC (Polycarbonate)

 

The PC (polycarbonate) is a technical amorphous thermoplastic material with exceptional resilience, heat resistance, transparency, sterilisability, flame retardant capacity and resistance to discolouration. It is a particular type of carbonic acid polyester produced from the condensation reaction of bisphenol with carbonic acid.

Chemical formula PC: C16 H14 O3
CAS Number PC: 25037-45-0
Chemical Name PC (IUPAC): Poly(oxycarbonyloxy-1,4-phenylene(dimethylmethylene)-1,4-phenylene]

PC commercial names and producers:

 

  • Anjalon (Almaak)
  • Calibre (Trinseo)
  • Carbotex (Kotec)
  • Enduran (Sabic)
  • Exatec (Exatec)
  • Gebalon (Geba)
  • Infino (Lotte)
  • Isoclear (Sirmax)
  • Jupilon (Mitsubishi)
  • Kotec (Kotec)
  • Latilon (Lati)
  • Lexan (Sabic)
  • Lupoy (LG)
  • Makrolon (Covestro)
  • Megalon (Mega Polymers)
  • Nirion (Soredi)
  • Novalux (Novalca)
  • Novarex (Mitsubishi)
  • Panlite (Teijin)
  • Polilux (LA/ES)
  • Saxalon (Sax Polymers)
  • Scantec PC (Polykemi)
  • Staren (Lotte)
  • Tarflon (Idemitsu)
  • Cycoloy (PC/ABS Sabic)

Polycarbonate (PC) Italian distributors:

 

  • Resinex (Calibre, Emerge, Mablex, Pulse, Sicoklar)
  • Ultrapolymers (Sicoklar, Trirex, Mablex)
  • Biesterfeld (Lupoy, Tarflon, Wonderlite, Wonderloy, Cabelec)
  • Nexeo Solutions (Electrafil, Enviroplas, HiFill FR, HiFill, Plaslube, TES)
  • Guzman Global (Xylex, Geloy, Cycoloy, Xenoy, Radiblend)
  • Albis Plastics (Alcom, Altech, Luran, Novodur)
  • Mito Polimeri (Apec PC-HT, Bayblend PC/ABS, Makroblend PC/PBT, Makrolon PC)
  • Interpolimeri (Teclux, Lupoy, Lumiplas)
  • Arcoplex Trading (Axtrolon, Infino)
  • Nevicolor (Xantar, NeviFood, NeviBlend)
  • Dolder (Scantec, Polyblend, Polylux)
  • TER Plastics (TEREZ PC, TEREZ PC/ABS)
  • SIRMAX (Isoclear, Isoblend PC/ABS)

Main compounds of Polycarbonate:

 

  • PC/ABS (Polycarbonate + Acrylonitrile Butadiene Styrene)
  • PC/ASA (Polycarbonate + Acrylonitrile Styrene Acrylate)
  • PC/PET (Polycarbonate + Polyethylene Tereftalato)
  • PC/PBT (Polycarbonate + Polybutadiene Styrene)
  • PC/PMMA (Policarbonate + Polymethylmethacrylate)
  • PC-GF15 (Polycarbonate + Fibre glass 15%)
 

Physical and chemical properties:

PC, being an easily workable material through injection moulding and thermoforming, can be used for different applications.

Polycarbonates with a high molecular weight (which imply a limited MFR) possess better mechanical properties, but the workability of such properties proves difficult. For properties of a high resistance, it's advisable to use polycarbonates with limited MFR; on the other hand for an optimal workability, polycarbonates with a high MFR should be used.

The main problems arise from the inferior external hardness and the weak resistance to atmospheric agents and ultraviolet rays, which cause rapid events of photo-sensitive degradation (yellowing). To resolve such problems an external anti-UV treatment is required. Furthermore PC is a hygroscopic material.

PC standard density: 1,20 – 1,22 g/cm3 (ISO 1183)
PC Melting Point Tm: 260-340 °C
PC Glass transition temperature Tg: 147 °C

 

Polycarbonate application markets

 

  • Electronic components
  • Medical
  • Telephones
  • Automotive componenti
  • Construction

Polycarbonate trasformazion technologies

 

  • Injection moulding
  • Blow moulding
  • Extrusion
  • Injection compression moulding
  • Thermoforming

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