PLA for 3D Printers…what the heck is it?

3D Printer Filament

PLA Filament

Polylactic acid

Polylactic acid
The skeletal formula of PLA
Identifiers
CAS number 33135-50-1
Properties
Molecular formula (C3H4O2)n
Density 1.210-1.430 g·cm-3 [1]
Melting point 150-160 °C [1] 302-320 °F
Solubility in water Insoluble in Water [2]
Hazards
NFPA 704

NFPA 704 four-colored diamond

Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Poly(lactic acid) or polylactide (PLA) is a thermoplastic aliphatic polyester derived from renewable resources, such as corn starch(in the United States), tapioca roots, chips or starch (mostly in Asia), or sugarcane (in the rest of the world). In 2010, PLA had the second highest consumption volume of any bioplastic of the world.[3]

The name “poly(lactic acid)” does not comply with IUPAC standard nomenclature, and is potentially ambiguous or confusing, because PLA is not a polyacid (polyelectrolyte), but rather a polyester.[4]

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