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Polylactic Acid
Commercial Grade
Poly(lactic acid) or polylactide (PLA) is a thermoplastic aliphatic polyester derived from renewable resources, such as corn starch (in the United States), tapioca products (roots, chips or starch mostly in Asia) or sugarcanes (in the rest of world). It can biodegrade under certain conditions, such as the presence of oxygen, and is difficult to recycle.
PARAMETER RESULT
Density 1.25 gm/cm3 at 21.5oC
Melt Index 5 -7 g/10 min, 190oC/2.16 kg
Heat-Deflection-Temperature 56oC, 0.455 MPa
Yield Strength 54 Mpa, 5 mm/min.
Elongation at Break 9%
Flexural Strength 104 Mpa, 2 mm/min.
Flexural Modulus 4021 MPa
Impact Strength 4.2 kJ/m2, Notched A