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Effect of cooling bath on LLDPE microporous membrane structure in thermally induced phase separation

Publish Year: 1390
Type: Conference paper
Language: English
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ICHEC07_198

Index date: 14 April 2015

Effect of cooling bath on LLDPE microporous membrane structure in thermally induced phase separation abstract

Thermally induced phase separation (TIPS) is versatile method for making microporous membranes. The purpose of this work is to investigate the coolingbath temperature and type effects on the membrane structure prepared via TIPS method. The morphology of the resulting membrane shows a typical bicontinuous structure. When quenching into water at different temperatures, a larger pore size was obtained at higher temperature. Pore sizes are about 0.7 μm, 1.2 μm, and 2.2 μm for the water cooling bath with 273K, 303K and 333K. Porosity and tensile tests confirm these results. When the composition of the coagulation bath is similar with the diluents, the chemical potential difference of diluents would be declinedand the concentration of diluent in polymer lean phase would be kept constant in stagnant condition which leads the droplets to grow and the pore size of the systemwill be larger. However in water cooling bath, the concentration of diluent in polymer lean phase decreased rapidly and pore size growth is decelerated which result is lower porosity

Effect of cooling bath on LLDPE microporous membrane structure in thermally induced phase separation Keywords:

Microporous membrane , Thermally induced phase separation , Linear low density polyethylene , Cooling bath effect

Effect of cooling bath on LLDPE microporous membrane structure in thermally induced phase separation authors

Elham Shokri

MS.c Student of Chemical Engineering, Sahand University of Technology, Tabriz, Iran Membrane Technology Research Center, Sahand University of Technology, Tabriz, Iran

Reza Yegani

Assistant Professor of chemical Engineering of Sahand University of Technology, Tabriz, Iran . Membrane Technology Research Center, Sahand University of Technology, Tabriz, Iran

zahra godarzi

Membrane Technology Research Center, Sahand University of Technology, Tabriz, Iran

leila noori

Membrane Technology Research Center, Sahand University of Technology, Tabriz, Iran

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S.K. Singh, S. P. Tambe, A. B. Samui, D. Kumar, ...
A.J. Castro, Methods for making microporous products in US Patent, ...
S. Kim, D.R. Lloyd, Microporous membrane formation via thermally induced ...
B.A Lim, D.R. Lloyd, Microporous membrane formation via thermally induced ...
Exihibition ع _ International Chemical Engineering Congress Kish, Iran, 21-24 ...
D.R. Lloyd, Microporous membrane formation via thermally induced phase separation. ...
D.R. Lloyd, Microporous membrane formation via thermally induced phase separation. ...
D.R. Lloyd, Microporous membrane formation via thermally induced phase separation. ...
S. Rajabzadeh, Preparation of PVDF/PMMA blend hollow fiber membrane via ...
S. Rajabzadeh, Preparation of PVDDF hollow fiber membrane from a ...
H.Matsuyama, Preparation of polyethylene hollow fiber membrane via thermally induced ...
P.Witte, P.J.Dijkstra, J.Feijen, Phase separation Processes in polymer solutions in ...
M. Gu, Formation of P oly(vinylidene fluoride) (PVDF) membranes via ...
K.S. McGuire, Kinetic of droplet growth in liquid-liquid phase separation ...
H.K. Lee, A.S. Myerson, K. Levon, Nonequil ibrium liquid-iquid phase ...
H.C. Vadalia, Thermally induced phase separation in ternary crystallizable polymer ...
R.H. Mehta, D.A. Madsen, D.S. Kalika, Microporous membranes based on ...
J. Zhou, Effect of cooling baths on EVOH microporous membrane ...
J. Zhang, _ et al, Effect of diluents on hydrophilic ...
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