Measurement and correlation of viscosities of mixed solvents 1,3,5-trimethylbenzene and diisobutylcarbinol

ZHANG Rongrong; DOU Maobin; YUAN Enxian; LI Haijing; WANG Li

doi:10.11949/j.issn.0438-1157.20150860

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Measurement and correlation of viscosities of mixed solvents 1,3,5-trimethylbenzene and diisobutylcarbinol

更新时间：2025-12-10

- Measurement and correlation of viscosities of mixed solvents 1,3,5-trimethylbenzene and diisobutylcarbinol
- CIESC Journal Issue 9, Pages: 3377-3382(2015)
- 作者机构：
  
  1. 天津大学化工学院, 绿色合成与转化教育部重点实验室,天津,300072
  2. 天津大学求是学部,天津,300072
  3. 天津化学化工协同创新中心,天津,300072
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150860
  CLC： Q612.5O645.1
- Online First：05 September 2015，
  
  Published：05 September 2015
- 稿件说明：
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ZHANG Rongrong, DOU Maobin, YUAN Enxian, et al. Measurement and correlation of viscosities of mixed solvents 1,3,5-trimethylbenzene and diisobutylcarbinol[J]. CIESC Journal, 2015, (9): 3377-3382.
DOI：

ZHANG Rongrong, DOU Maobin, YUAN Enxian, et al. Measurement and correlation of viscosities of mixed solvents 1,3,5-trimethylbenzene and diisobutylcarbinol[J]. CIESC Journal, 2015, (9): 3377-3382. DOI： 10.11949/j.issn.0438-1157.20150860.

摘要

采用乌氏黏度仪

在常压和293.15～323.15 K温度范围内测定了均三甲苯与二异丁基甲醇混合溶剂以及两种纯溶剂的黏度

计算了不同温度和组成下混合溶剂的超额黏度。用Redlich-Kister方程对超额黏度进行了关联;用Andrade方程、UNIFA-VISCO模型以及Grunberg-Nissan模型对黏度进行了关联与预测。结果表明

混合溶剂的黏度随温度升高和均三甲苯含量增加而减小。超额黏度均为负值

且随均三甲苯含量增加呈U形变化

约在均三甲苯摩尔分数为0.3时达到最低。Grunberg-Nissan模型对黏度数据的关联和预测性最好

预测值与实测值的最大和平均相对偏差分别为12.96%和5.74%。

Abstract

The viscosities of mixed solvents consisted of 1

5-trimethylbenzene (TMB) and diisobutylcarbinol (DIBC) were determined at temperature ranging from 293.15 to 323.15 K and atmospheric pressure for the whole range of compositions by using viscometer. The excess molar viscosities of the mixed solvents were calculated and correlated by Redlich-Kister equation. The viscosities of the mixtures were correlated and predicted by Andrade equation

UNIFA-VISCO model

and Grunberg-Nissan model. The viscosities of the mixtures decreased with the increase of temperature and molar fraction of TMB. The excess viscosities showed negative deviations from ideal behavior

gave U-shaped curves as the molar fraction of TMB (x1) increased

and reached the minimum values at ca x1=0.3. The Grunberg-Nissan model was quite reasonable with the maximum and average relative errors between predicted and experimental data of 12.96% and 5.74%.

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