Table 3.

Results of tensile tests made on plasticized flours and their blends with PCL and polybutylene adipate terephthalate (PBAT), by varying the biopolymer amounts, processing temperatures and mixing rate.

Sample	Flour	Glycerol (% wt.)	Biopolymer (% wt.)	Citric Acid (% wt.)	Tset *	Screw Speed (rpm)	Ultimate Tensile Strength (MPa)	Strain at Break (%)
TPF0	F0	23	0	0	2	30	1.23 ± 0.05	54.13 ± 4.39
TPF1	F1	23	0	0	2	30	2.63 ± 0.10	32.23 ± 0.64
TPF2	F2	23	0	0	2	30	2.62 ± 0.40	23.84 ± 2.45
TPF3	F3	23	0	0	2	30	3.83 ± 0.20	19.64 ± 1.60
TPF2_CA	F2	23	0	0.8	2	30	1.61 ± 0,08	34.89 ± 2.44
TPF2_20BAT	F2	23	20 PBAT	0	2	30	2.21 ± 0,17	6.93 ± 0.47
TPF2_20CL	F2	23	20 PCL	0	2	30	1.96 ± 0.06	16.80 ± 1.98
TPF2_CA20BAT	F2	23	20 PBAT	0.8	2	30	1.50 ± 0.05	10.44 ± 0.17
TPF2_CA20CL	F2	23	20 PCL	0.8	2	30	1.66 ± 0.34	60.39 ± 13.00
F0_CA2	F0	17	0	0.8	2	30	1.54 ± 0.02	75.47 ± 11.66
F0_CA3	F0	17	0	0.8	3	30	1.05 ± 0.14	31.08 ± 6.07
F0_CA20CL2	F0	17	20 PCL	0.8	2	30	2.89 ± 0.23	61.80 ± 11,87
F0_CA20CL3	F0	17	20 PCL	0.8	3	30	2.69 ± 0.22	47.04 ± 18.15
F2_CA20CL2	F2	17	20 PCL	0.8	2	30	3,10 ± 0,24	12,42 ± 1,43
F2_CA20CL3	F2	17	20 PCL	0.8	3	30	2,72 ± 0,23	13,83 ± 1,12
F2_20CL	F2	17	20 PCL	0.8	2	30	3.10 ± 0.24	12.42 ± 1.43
F2_20CL120R	F2	17	20 PCL	0.8	2	120	3.17 ± 0.20	14.15 ± 2.46
F2_25CL	F2	17	25 PCL	0.8	2	30	3.05 ± 0.03	16.27 ± 1.47
F2_25CL120R	F2	17	25 PCL	0.8	2	120	3.70 ± 0.16	18.87 ± 2.77
F2_30CL	F2	17	30 PCL	0.8	2	30	3.69 ± 0.43	12.49 ± 1.03
F2_30CL120R	F2	17	30 PCL	0.8	2	120	3.43 ± 0.36	11.73 ± 0.99
F2_40CL	F2	17	40 PCL	0.8	2	30	4,57 ± 0.36	30.75 ± 1.97
F2_40CL120R	F2	17	40 PCL	0.8	2	120	4,63 ± 0.13	52.64 ± 4.02
F0_25CL120R	F0	17	25 PCL	0.8	2	120	2.68 ± 0.11	57.11 ± 6.29
F1_25CL120R	F1	17	25 PCL	0.8	2	120	3.58 ± 0.14	37.39 ± 4.07
F3_25CL120R	F3	17	25 PCL	0.8	2	120	3.91 ± 0.31	10.04 ± 3.92

* T_set 2 = 130–135–140 °C; 3 = 135–140–145 °C.