Dilute Solution Viscosity of Ethylene Polymers ASTM D1601

Dilute Solution Viscosity of Ethylene Polymers ASTM D1601

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 the standard.


    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. 


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

    Specimen size

    The weight of Ethylene Polymer should be 0.0001g.


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


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