Table 1.
Tensile properties of neat HDPE and HA/HDPE nano-composites
| Material |
Non aged specimens |
Aged specimens |
|||||
|---|---|---|---|---|---|---|---|
| Dose (kGy) | Modulus (MPa) | Ultimate stress (MPa) | Fracture strain | Modulus (MPa) | Ultimate stress (MPa) | Fracture strain | |
|
HDPE +0% HA |
0 |
820 ± 36 |
20.5 ± 0.8 |
76 ± 5.8 |
650 ± 38 |
18.3 ± 0.8 |
60 ± 4.9 |
| 35 |
1060 ± 59 |
22 ± 1 |
48 ± 3.8 |
915 ± 55 |
22 ± 0.9 |
35 ± 3.1 |
|
| 70 |
1190 ± 88 |
22.6 ± 0.9 |
26 ± 2.1 |
1059 ± 52 |
21.5 ± 1 |
22 ± 1.8 |
|
|
HDPE + 10% HA |
0 |
1006 ± 58 |
25 ± 1.4 |
16.4 ± 1.1 |
740 ± 54 |
21 ± 1.1 |
13.3 ± 1.01 |
| 35 |
1188 ± 79 |
24.6 ± 1.1 |
13 ± 0.92 |
1030 ± 60 |
23.9 ± 0.98 |
11 ± 0.87 |
|
| 70 |
1310 ± 90 |
25.4 ± 0.95 |
10 ± 0.53 |
1200 ± 57 |
23.9 ± 1.1 |
9 ± 0.69 |
|
|
HDPE + 20% HA |
0 |
1185 ± 67 |
27.5 ± 1.3 |
10.5 ± 0.58 |
910 ± 60 |
25.4 ± 1.6 |
9.3 ± 0.64 |
| 35 |
1295 ± 70 |
28.1 ± 1.2 |
9 ± 0.72 |
1160 ± 63 |
26.9 ± 1.5 |
7 ± 0.48 |
|
| 70 |
1430 ± 88 |
29 ± 1.7 |
8 ± 0.53 |
1350 ± 80 |
27 ± 1.2 |
7 ± 0.41 |
|
| HDPE + 30% HA | 0 |
1310 ± 81 |
28.8 ± 1.9 |
8.5 ± 0.41 |
1030 ± 69 |
26.3 ± 1.5 |
8.1 ± 0.58 |
| 35 |
1480 ± 87 |
28.9 ± 1.5 |
7 ± 0.45 |
1250 ± 78 |
28 ± 1.6 |
6 ± 0.42 |
|
| 70 | 1496 ± 89 | 29.1 ± 1.5 | 6 ± 0.39 | 1380 ± 81 | 27.5 ± 1.3 | 5 ± 0.33 | |