ASTM D1601 Dilute Solution Viscosity of Ethylene Polymers

Dilute solution viscosity of Ethylene Polymers is determined by standard test method ASTM D1601. The relative viscosity, inherent viscosity, and intrinsic viscosity are all determined in the same way. The values expressed in SI units should be considered as standard.... Read More

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    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.

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