Bio-based PC Resin for Injection Moulding

Opportunity

Renewable materials, such as Polylactic Acid (PLA), are readily available and allow the creation of bio-based Polycarbonate (PC) blends with property profiles close to those of compounds made with virgin raw materials. Bioplastics engineers at the University of Guelph have developed a high performance PC+PLA blend (32% renewable) to compete with PC+ABS blends. The novel formulation (bioPC) includes acrylic core/shell impact modifiers and a number of bio-sourced mineral fillers with high impact strength and heat deflection temperature. The blend is intended for durable applications and inventors are now seeking co-innovation partner(s) for scale-up and applications testing.

Applications

  • Enclosures for consumer electronics and business machines
  • Instrument housings/components for medical devices
  • Components in large and small home appliances

Advantages 

  • Material costs are 28% lower than standard PC+ABS blends
  • Excellent processability allows for faster molding cycles
  • Candidate for thin-walled injection molding (flow, stiffness, toughness)

Performance

Blend Material (US$/lb.) Density (g/cm3) Flow (g/10min.) HDT* (oC) Toughness (J/m) Stiffness (Mpa)
bioPC 1.55 1.19 69 133 715 2749
PC+ABS 2.16 1.11 17 97 510 2160
Improvement -28% +7% +306% +37% +40% +27%

Values for PC+PLA blend collected by the Bioproducts Discovery & Development Centre, University of Guelph. Values for PC+ABS blend obtained from RTP 2099 X 126213 product data sheet for context and illustrative purposes. All values are typical and not to be construed as specifications. HDT* - Heat Deflection Temperature.

Patent Status

Patents pending in the US (15/148,704) and CAN (2,929,129).

License Status

Seeking co-innovation partner and/or licensee.

Contact

Martin Ciuk, mciuk@uoguelph.ca 519-824-4120 x53808