Research Article
Interrelationships of Pressure-Dependent Hole Fraction and Elongational Viscosity in Polymer Melts
Table 2
Values of parameters of (
7) evaluated for
η0 at zero level of elongational rate according to (
5) and (
6) in brackets.
| Polymer | | | | | | | R2 |
| LDPE60 | 7.60 (8.02) | 20372 | 65.35 (57.89) | 0.13 (0.11) | 0.0020 (0.0013) | 1.41 (1.62) | 0.99972 (0.99965) |
| LDPE65 | 7.53 (7.37) | 20072 | 87.01 (92.81) | 0.17 (0.18) | 0.0021 (0.0024) | 1.35 (1.58) | 0.99966 (0.99953) |
| LLDPE | 8.25 (8.39) | 14672 | 55.33 (48.67) | 0.15 (0.13) | 0.0010 (0.00089) | 1.45 (1.47) | 0.99970 (0.99969) |
| HDPE | 9.85 (9.66) | 28772 | 126.93 (141.26) | 0.21 (0.23) | 0.00024 (0.00029) | 1.81 (1.08) | 0.99980 (0.99975) |
| PMMA | 6.72 (6.82) | 29072 | 358.19 (334.90) | 0.53 (0.50) | 0.0068 (0.0062) | 1.81 (2.21) | 0.99961 (0.99935) |
| PC | 3.99 (4.52) | 4022 | 560.31 (326.49) | 3.83 (3.48) | 0.0926 (0.0547) | 1.62 (1.96) | 0.99961 (0.99942) |
| PP | 8.87 (8.39) | 49112 | 95.51 (121.62) | 0.090 (0.12) | 0.00054 (0.00088) | 2.08 (2.27) | 0.99910 (0.99922) |
| PS | 2.68 (2.35) | 66572 | 390.21 (411.54) | -0.25 (-0.26) | 0.306 (0.426) | 3.32 (3.54) | 0.99854 (0.99824) |
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