Dependence of the Viscosity of Bromobenzene on Pressure up to 400 MPa
Dependence of the Viscosity of Bromobenzene on Pressure up to 400 MPa
复制标题
溴苯粘度对压力的依赖性，最高可达 400 MPa
DOI：
10.1007/s10765-022-03051-8
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发表时间：
2022
影响因子：
2.2
通讯作者：
Yamawaki Hiroshi
中科院分区：
文献类型：
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作者：
山崎 皓平;大角 義浩;吉田 昌弘;武井 孝行;Yamawaki Hiroshi
在这项研究中，测量了高压下溴苯的石英晶体谐振器的基模的谐振峰。几个谐振器用于测量在大气或高压; 20兆赫的石英晶体谐振器，由于其相对较强的强度，被选中。粘度（η）和密度的乘积的平方根使用20-MHz石英晶体谐振器从谐振峰的带宽获得。在293 K，313 K和333 K下，使用先前报道的密度值，估计粘度对压力的依赖性高达400 MPa。在这些温度下，ln η几乎随压力线性增加，即，η随压力呈指数增加。使用线性方程进行拟合，其显示样品粘度的压力依赖性在绝对平均偏差的5%以内。
In this study, the resonance peak of the fundamental mode of a quartz crystal resonator was measured for bromobenzene under high pressures. Several resonators were used for measurement at atmospheric or high pressures; a 20-MHz quartz crystal resonator, owing to its relatively strong intensity, was selected. The square root of the product of viscosity (η) and density was obtained from the bandwidth of the resonance peaks using the 20-MHz quartz crystal resonator. The pressure dependence of viscosity up to 400 MPa was estimated at 293 K, 313 K, and 333 K, using previously reported values of density. At these temperatures,ln ηalmost linearly increased with pressure, i.e.,ηexponentially increased with pressure. Fitting was performed using a linear equation, which revealed that the pressure dependence of the viscosity of the sample was within 5 % of the absolute average deviation.