what is the normal IZOD Impact Strength of ABS, PETG, PLA and TPU?
The IZOD Data of Four 3D Printer Filament • ABS (Acrylonitrile Butadiene Styrene) - 15-30 kJ/㎡ (0.7-1.4 ft-lb/in) ABS is an amorphous polymer with good impact strength and durability. Its impact resistance is on the higher end of FDM filaments. • PETG (Glycol modified Polyethylene Terephthalate) - 5-20 kJ/㎡ (0.25-0.95 ft-lb/in) PETG is an amorphous copolyester that is frequently used as an alternative to ABS. It has moderate impact resistance and durability. • PLA (Polylactic Acid) - 2-10 kJ/㎡ (0.1-0.5 ft-lb/in) PLA is a biodegradable polymer made from renewable resources. It has the lowest impact strength of common 3D printing filaments. PLA parts are more brittle and can crack easily under high impact. As you can see, ABS has the highest impact strength, followed by PETG and then PLA with the lowest impact resistance. The specific Izod values can vary slightly between different material brands and grades, but this provides a good relativ...