Standard Test Method for Determination of Xylene Solubles in Propylene Plastics

Importancia y uso:

5.1 The results of this test provide a relative measure of the total soluble fraction of polypropylene homopolymers and copolymers. The soluble fraction approximately correlates to the amorphous fraction in the polypropylene. Xylene is widely used for determining the soluble fraction in polypropylene as it is more specific to the atactic fraction than other solvents. The concentration of a soluble fraction obtained with a specific solvent has been found to relate closely to the performance characteristics of a product in certain applications, for example film and fiber. Data obtained by one solvent and at one precipitation time cannot be compared with data obtained by another solvent or precipitation time, respectively.

Subcomité:

D20.15

Referida por:

D8539-23

Volúmen:

08.03

Número ICS:

83.080.20 (Thermoplastic materials)

Palabras clave:

plastics; polypropylene; xylene solubles;