Review Article
Measurement Techniques and Methods for the Pressure Coefficient of Viscosity of Polymer Melts
Table 1
Pressure coefficients of different polymers.
| Materials | Pressure coefficient (GPa−1) | Temperature (°C) | Reference |
| LDPE | 16.5 ± 0.5 | 170–230 | [14] | 17.6 | 200 | [10] | 11.0 | 150 | [18] | 18.4 ± 1.8 | 150–190 | [19] | 10 | 210 | [16] |
| LLDPE | 11.7 ± 0.5 | 150–190 | [19] | 14.4 | 190 | [15] | 14 | 200 | [20] |
| HDPE | 10 ± 0.5 | 150–200 | [14] | 10.3 ± 0.3 | 170–210 | [19] |
| PP | 20.5 | 220 | [10] | 22 ± 0.5 | 190–230 | [14] | 21 ± 4.1 | 190–230 | [19] |
| PMMA | 24.5 ± 0.5 | 220–240 | [14] | 44.8 ± 6.6 | 230–250 | [19] | 37 | 210 | [16] |
| PC | 26.6 | 290 | [10] | 31.5 ± 2.1 | 280–300 | [19] |
| PS | 35.5 | 200 | [10] | 41 ± 13.8 | 162–242 | [21] | 43.5 ± 12.1 | 190–230 | [19] | 29 ± 1.5 | 180–230 | [14] |
| PαMSAN | 38.6 ± 12.2 | 210 | [22] | 36.7 | 210 | [16] |
| ABS | 33.7 | 230 | [10] | 31.5 | 190 | [21] | 29 | 190 | [23] |
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