Open AccessStudy on the Rheological Properties of MPCS with Isopropanol/Water as Base Fluid
Author(s) -
Chuansheng Zou,
Shan Lv,
Zhongzhu Qiu,
Chunying Li
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/702/1/012030
Subject(s) - suspension (topology) , rheology , viscosity , relative viscosity , phase (matter) , reduced viscosity , base (topology) , volume (thermodynamics) , thermodynamics , materials science , particle (ecology) , temperature dependence of liquid viscosity , mass concentration (chemistry) , particle size , chemistry , chromatography , composite material , organic chemistry , mathematics , physics , geology , mathematical analysis , oceanography , homotopy , pure mathematics
In order to obtain a good stability of micro-encapsulated phase change suspension, then study its rheological properties, herein formulated a phase change micro-capsulated suspension and utilized isopropanol/water mixed solution as the base fluid. The particle size distribution, viscosity and rheological properties of micro-encapsulated phase change suspension were measured at different concentrations. The effects of mass fraction, temperature on viscosity were discussed. Based on the classic viscosity formula, a correction factor was introduced to get higher precision viscosity formula. The results show that: a volume ratio of 1:1.75 of isopropanol/water suspension, suspension stability is up to 48h. It is also found that the viscosity decreases with the increase of temperature, but it increases with the increases of mass concentration. The fitted Tomas viscosity formula is reliable when the volume concentration is less than 15.58%, the error could be controlled within 5.7%.