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Rheometry SLIT RHEOMETER

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<strong>Rheometry</strong><br />

<strong>SLIT</strong> <strong>RHEOMETER</strong><br />

NORMAL STRESS DIFFERENCE<br />

Figure 3: Comparison of First Normal Stress Difference Values for LDPE<br />

from Slit Rheometer Exit Pressure (filled symbols) and Cone&Plate (open<br />

symbols).<br />

The poor agreement indicates that the more work is needed in order to<br />

use exit pressures to measure normal stress differences.

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