Standard Test Methods for Rubber Property—Stiffening at Low Temperatures: Flexible Polymers and Coated Fabrics

Importancia y uso:

4.1 These test methods may be used to determine the subnormal temperature stiffening of flexible polymers or fabrics coated with flexible polymers. Temperatures at which the low temperature modulus is a specified multiple or ratio of the modulus at room temperature are interpolated from the twist versus temperature curve. These specified ratios of low-temperature modulus to room-temperature modulus are called relative moduli. These temperatures at the relative moduli encompass the transition region between the glassy and rubbery states of the materials tested.

4.2 These test methods offer only a general guide to stiffness characterization as service conditions of experimental materials may differ greatly from the test conditions.

Subcomité:

D11.10

Referida por:

D2821-19, D0832-07R24, D1043-16R24, F2468-05R19, D2000-18, D3847-01R24

Volúmen:

09.01

Número ICS:

83.060 (Rubber)

Palabras clave:

apparent modulus of rigidity; coated fabric; fabrics; flexible polymers; low temperature; low temperature modulus; low temperature test; modulus proportionality factor; MPF; polymer; relative modulus; rigidity modulus; stiffening ; stiffness; stiffness measurement in gaseous media; stiffness measurement in liquid media; subnormal temperature; torsion; twist versus temperature;