Table 11.

Mechanical properties of different PLA blends with non-biodegradable flexible/soft polymers.

Formulation (wt.%)	Et (MPa)	σy (MPa)	εb(%)	NIIE (KJ/m2)
PLA/EVA50 (Ma et al., 2012)					Hardness (Shore D)	Ef(GPa)	σf (MPa)
100/0		75	9	3	86	3.7	105
95/5		68	310	2	85	3.3	90
90/10		61	390	5	84	2.9	75
85/15		54	430	32	82	2.7	70
80/20		45	340	64	80	2.4	65
70/30		37	400	83	76	1.9	50
PLA/EGA (Zhang et al., 2013c)
100/0	1745 ± 39	60.0 ± 3.0	4.9 ± 0.3	3.0 ± 0.4
90/10	1530 ± 35	44.3 ± 2.1	23.4 ± 3.6	3.9 ± 0.3
80/20	1154 ± 42	33.8 ± 2.4	232.0 ± 26	59.8 ± 5.1
70/30	945 ± 49	24.9 ± 1.3	126.0 ± 21	53.2 ± 8.4
PLA/PEBA (Petchwattana et al., 2012)				NIIE (J/m)
100/0	2750 ± 120	61.22 ± 1.42	3.46 ± 1.42	23.66 ± 1.33
99.9/0.1	2660 ± 60	61.69 ± 1.99	3.53 ± 0.19	26.62 ± 1.87
99.7/0.3	2680 ± 80	61.57 ± 1.76	5.01 ± 0.34	33.18 ± 2.01
99.5/0.5	2550 ± 70	58.34 ± 0.94	8.94 ± 1.82	36.89 ± 2.43
99.3/0.7	2310 ± 140	58.17 ± 1.83	15.1 ± 2.07	38.12 ± 1.95
99/1	2350 ± 380	58.69 ± 0.91	19.8 ± 4.97	52.15 ± 2.57
97/3	2050 ± 120	53.89 ± 0.84	53.7 ± 4.93	64.59 ± 3.46
95/5	2150 ± 220	54.22 ± 0.97	124 ± 25.9	86.95 ± 4.65
93/7	2040 ± 210	50.31 ± 0.93	167 ± 24.4	96.21 ± 4.99
90/10	2000 ± 250	48.98 ± 1.79	198 ± 31.7	101.0 ± 5.63
PLA/UFPR (Zhao et al., 2013)
100/0	2062 ± 12	68.05 ± 1.42	6.08 ± 0.36	1.60 ± 0.21
99.5/0.5	1922 ± 66	67.53 ± 1.99	106.60 ± 15.08	2.00 ± 0.15
99/1	1896 ± 2	66.26 ± 1.76	219.93 ± 2.64	2.2 ± 0.23
97/3	1768 ± 54	65.67 ± 0.94	231.45 ± 20.55	2.6 ± 0.37
95/5	2029 ± 129	65.39 ± 1.83	215.63 ± 12.21	3.20 ± 0.19
PLA/PBA (Meng et al., 2012)					Tensile toughnessa (MJ/m3)
100/0	3510	68	4.52		2.13
95/5	1540	51.77	31.52		3.7
92/8	1490	44.79	74.62		17.0
89/11	1440	40.82	173.98		41.74
85/15	1330	41.01	174.52		47.02

E_t, Tensile modulus; σ_y, Tensile yield stress; ε_b, Tensile elongation at break; NIIE, Notched Izod Impact Energy; E_f, Flexural modulus; σ_f, Flexural stress.

^aCalculated as the area under stress-strain curve.