ASTM D1601 Dilute Solution Viscosity of Ethylene Polymers

Scope:

ASTM D1601 is used to determine the dilute solution viscosity of ethylene polymers at 135°C, and it presents problems not usually encountered in viscometry. It works with a wide range of ethylene polymers with densities ranging from 0.910 to 0.970 g/cm². It is a valuable tool for characterizing ethylene polymers and their processing characteristics. 

Procedure:

In the ASTM D1601 test, Decahydronaphthalene is prepared by using the required materials. First, the viscometer is cleansed by letting it stand overnight in a cleaning solution, and then the solution is prepared according to ASTM D1601. Finally, after conditioning the specimen, the flow time of the solvent is measured by a viscosity meter.

Specimen size

The weight of the Ethylene Polymer should be 0.0001g.

Data:

In ASTM D1601 testing , viscosity is calculated by using the following formula:

ηr = (ts – k/ts2)/(to – k/to2)
where:
k = kinetic energy, ts = flow time of the solution at 135°C, and to = flow time of the pure solvent at 135 °C.

Conclusion:

ASTM D1601 is used to determine the dilute solution viscosity of ethylene polymers at 135°C, and it presents problems not usually encountered in viscometry.