Quantachrome UltraFoam Features

UltraFoam | Benefits | Specifications

Density Analyzers

UltraFoam Features

Correction for Cut Cells

In ASTM D2856, a corrected percentage of open cells is estimated by remeasuring the volume of a cube after sectioning into eight parts. The UltraFoam™ pycnometer programming provides a convenient way to automate this procedure. The printed report then gives both the Open Cell% and the Corrected Open Cell% values.

Cell Compressibility

The UltraFoam™ pycnometer offers a unique feature that extends its range of usefulness for less rigid foams. By automatically increasing pressure stepwise, the resulting series of Compression% data provides a rational basis to determine:
(1) compression profile characteristics for quality control
(2) If there is an optimum pressure for the most accurate Open Cell% and Closed Cell% readings.

Cell Fracture

In a similar way, the UltraFoam™ pycnometer has important analytical ability for rigid foams that have fragile cell walls. In this mode, each step of increasing pressure is tested to see if the pressure change caused a permanent decrease in Closed Cell%. The data series of Fracture% versus pressure thus presented provides a rational basis to determine:
(1) cell fracture profile characteristics for quality control
(2) If there is an optimum pressure for best accuracy.