Standard Test Method for Determination of Properties of Polymeric Materials by Means of a Capillary Rheometer

Importancia y uso:

4.1 This test method is sensitive to polymer molecular weight and molecular weight distribution, polymer stability—both thermal and rheological, shear instability, and additives such as plasticizers, lubricants, moisture reinforcements, or inert fillers, or combination thereof.

4.2 The sensitivity of this test method makes the data useful for correlating with processing conditions and aids in predicting necessary changes in processing conditions. Unlike Test Method D1238, which makes a one-point measure at a shear rate typically below processing conditions, this test method determines the shear sensitivity and flow characteristics at processing shear rates, and therefore is used to compare materials of different compositions.

Subcomité:

D20.30

Referida por:

D5592-94R18, F0451-21, D8366-21A, F0942-18R23E01, D3364-99R19, D5138-23, D3222-21, D4101-24, D8033-22, D5422-17, D4067-23, D5422-17, D5099-08R22, F0561-19, D5575-18R23

Volúmen:

08.02

Número ICS:

83.080.20 (Thermoplastic materials)

Palabras clave:

capillary; plastics; polymers; rheology; thermal flow; viscosity;