Research Progress of Rehabilitation Orthoses Based on 3D Printing Technology

Table 5

Properties of PLA.

Physical and mechanical properties	Typical values	ASTM methods
Melt flow rate (g/10 min) (210°C, 2.16 kg)	7	D1238
Melt density (g/cc)	1.08 at 230°C
Tensile elongation (%)	6.0	D882
Tensile strength, psi (MPa)	770(53)	D882
Tensile yield strength	8700(60)	D882
Tensile modulus, kpsi (Gpa)	500(3.5)	D882
Notched izod impact (ft-lb/in(j/m))	0.3(16)	D256
Melting point (°C)	155–170
Extruder temperature	195°C–200°C
Bad temperature	70°C