PEEK powder Goodfellow, UK < 200 m PEEK monofilament Goodfellow, UK 200 m diameter PEEK fibre Goodfellow, UK 34 fibre diameter, 30 filaments per tow m PEEK woven-mat Zyek, UK 300 m monofilament diameter, twill weave PTFE powder 6 - 9 Goodfellow, UK m Silicon dioxide, SiO2 ~ 20 nm Nanopowder Inc., USA Titania, TiO2 ~ 20 nm Nanopowder Inc., USA Wollastonite Microfine Minerals, UK 10 diameter, 50 long m m Yttrium oxide, Y2O3 ~ 20 nm Nanopowder Inc., USA Table 2: Values of Gc (at 21ºC) and Tg for the simple BADCy polymer and the co-reacted phenol-BADCy polymers. Fracture Energy, Glass Transition % Co-reacted Gc, J/m2 Temperature, Tg, °C Phenol [10] 0 150 310 5 135 260 10 220 228 15 320 201 Table 3: Predicted and experimental relative fracture energies for the simple BADCy polymer modified with the hollow glass spheres. Relative Fracture Energy Prediction Experimental Weight Volume Uniform Distributed -55ºC 21ºC 150ºC Fraction Fraction Spacing Spacing 0.1 0.11 1.27 1.48 1.22 1.25 1.81 0.2 0.23 1.32 1.63 - 1.33 -
PEEK powder < 200 m Goodfellow, UK PEEK monofilament 200 m diameter Goodfellow, UK PEEK fibre 34 m fibre diameter, 30 filaments per tow Goodfellow, UK PEEK woven-mat 300 m monofilament diameter, twill weave Zyek, UK PTFE powder 6 - 9 m Goodfellow, UK Silicon dioxide, SiO2 ~ 20 nm Nanopowder Inc., USA Titania, TiO2 ~ 20 nm Nanopowder Inc., USA Wollastonite 10 m diameter, 50 m long Microfine Minerals, UK Yttrium oxide, Y2O3 ~ 20 nm Nanopowder Inc., USA Table 2: Values of Gc (at 21ºC) and Tg for the simple BADCy polymer and the co-reacted phenol-BADCy polymers. Fracture Energy, Glass Transition % Co-reacted Phenol Gc, J/m2 Temperature, Tg, °C [10] 0 150 310 5 135 260 10 220 228 15 320 201 Table 3: Predicted and experimental relative fracture energies for the simple BADCy polymer modified with the hollow glass spheres. Relative Fracture Energy Prediction Experimental Weight Fraction Volume Fraction Uniform Spacing Distributed Spacing -55ºC 21ºC 150ºC 0.1 0.11 1.27 1.48 1.22 1.25 1.81 0.2 0.23 1.32 1.63 - 1.33 -
Cyanates%20Part%201%20Compressed.docx