Introduction
Experiments
Materials and blend preparation
Measurements
Results and discussion
The choice of materials
The effect of POE concentration on properties of the blends
PP copolymer (wt%) | POE (wt%) | Yield strength (MPa) | Elongation at break (%) | Bending strength (MPa) |
---|---|---|---|---|
100 | 0 | 26.2 | 135 | 36.7 |
95 | 5 | 22.4 | 270 | 28.9 |
90 | 10 | 22.0 | 317 | 28.1 |
85 | 15 | 21.1 | 328 | 27.4 |
80 | 20 | 19.6 | >500 | 24.8 |
The effect of HDPE concentration on mechanical property of blends
PP copolymer (wt%) | HDPE (wt%) | MFR (g/10 min) | Yield strength (MPa) | Elongation at break (%) | Bending strength (MPa) | Izod impact strength (J/m) |
---|---|---|---|---|---|---|
85 | 0 | 7.3 | 21.1 | 328 | 27.4 | 370 |
84 | 1 | 7.2 | 20.7 | >500 | 24.5 | 513 |
82 | 3 | 6.5 | 19.8 | >500 | 23.9 | 547 |
80 | 5 | 6.1 | 19.3 | >500 | 23.1 | 573 |
Morphology and properties of binary PP–POE blends
DSC analysis of the PP/POE blends with different POE content
Sample of PP/POE | 100/0 | 95/5 | 85/15 | 80/20 |
---|---|---|---|---|
T
m/°C | 166.3 | 165.2 | 165.1 | 164.4 |
ΔH
m/J g−1
| 93.33 | 75.85 | 69.59 | 60.17 |
ΔH
c/J g−1
| 97.12 | 80.62 | 78.07 | 74.81 |
X
c/% | 44.66 | 38.20 | 39.17 | 35.99 |