EVOH SP521B物性表资料

加工方法

· 挤出

密度

1.19

g/cm3

ISO 1183

熔流率 (210°C/2.16 kg)

4.0

g/10 min

ISO 1133

溶融温度（DSC）

191

°C

ISO 3146

Limit of Orientability, Simultaneous, Kuraray Method: 4 x 4
Limit of Orientability, Sequential, Kuraray Method: 2 x 2
O2 Transmission Rate, ISO 14663-2, 65%RH, 20°C: 0.015 cm2-mil/100in2/day/atm
O2 Transmission Rate, ISO 14663-2, 85%RH, 20°C: 0.061 cm2-mil/100in2/day/atm

· The recommended design for metering screws:
L/D Ratio: 24 to 30
Compression Ratio: 2.6 to 3.6
Zone Distribution:
Feed: 8 to 10 D

· Compression: 8 to 10 D

· Metering: 8 to 10 D

· The recommended design for barrier screws:
L/D Ratio: 24 to 30
Compression Ratio: 2.5 to 3
Zone Distribution:
Feed: 6 to 7.5 D (25% of screw length)

· Transition and Melting: 12 to 15 D (50% of screw length)

· Metering: 6 to 7.5 D (25% of screw length)