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]