Characterization of the viscoelastic behavior of complex fluids using the piezoelastic axial vibrator
Characterization of the viscoelastic behavior of complex fluids using the piezoelastic axial vibrator
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DOI：
10.1122/1.1917843
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发表时间：
2005-07-01
影响因子：
3.3
通讯作者：
Willenbacher, N
中科院分区：
文献类型：
--
作者：
Crassous, JJ;Régisser, R;Willenbacher, N
压电轴向振动器 (PAV) 是一种挤流流变仪，工作频率 f 介于 1 至 4000 Hz 之间。可用于测量复杂流体在此频率范围内的储能模量G'和损耗模量G''。使用具有已知 G' 和 G'' 的聚合物溶液，结果表明 PAV 可为 10 至 3000 Hz 之间的频率提供可靠的机械谱。使用 PAV 进行的测量与传统机械流变仪 (10(-3)
The piezoelectric axial vibrator (PAV) is a squeeze-flow rheometer working at frequencies f between 1 and 4000 Hz. It can be used to measure the storage modulus G' and the loss modulus G '' of complex fluids in this frequency range. Using polymer solutions with known G' and G '' it is shown that the PAV gives reliable mechanical spectra for frequencies between 10 and 3000 Hz. The measurements done with the PAV are combined with a conventional mechanical rheometer (10(-3)