Glossary
Rotational Molding of Industrial Parts with Polymer Materials

Viscosity

Resistance to flow and deformation of a material under an external load.

Surface tension

The force per unit length (energy per unit area) acting on the surface of the liquid that opposes spreading.

Crystallization

Development of the crystalline morphology of a semi-crystalline polymer during its forming process.

Glass transition temperature

The temperature at which an amorphous polymer or the amorphous phase of a semi-crystalline polymer changes from the glassy to the rubbery state.

Granulometry

Shape, dimensions and distribution of polymer powder grains.

Polymer foam

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