Manufacturing of Porous Polydimethylsiloxane (PDMS) Plates Using Solvent Evaporation Induced Phase Separation Technique

2021 ◽  
Author(s):  
Mohammad Abshirini ◽  
M. Cengiz Altan ◽  
Yingtao Liu ◽  
Mrinal Saha ◽  
Laura Cummings ◽  
...  
Keyword(s):  
Phase Separation ◽  
Solvent Evaporation ◽  
Separation Technique

Manufacturing of Porous Polydimethylsiloxane (PDMS) Plates Using Solvent Evaporation Induced Phase Separation Technique

2020 ◽  
Author(s):  
Mohammad Abshirini ◽  
M. Cengiz Altan ◽  
Yingtao Liu ◽  
Mrinal C. Saha ◽  
Laura Cummings ◽  
...  
Keyword(s):  
Phase Separation ◽  
Porous Structure ◽  
Pore Size ◽  
Average Pore Size ◽  
Solvent Evaporation ◽  
Separation Technique ◽  
Solvent Ratio ◽  
Average Pore ◽  
Wide Range ◽  
Curing Cycle

Abstract This paper presents the fabrication and characterization of porous polydimethylsiloxane (PDMS) plates. The framework for obtaining porous PDMS is based on the solvent evaporation induced phase separation technique. A mixture of PDMS, water, and tetrahydrofuran (THF) with different concentrations is prepared. The three phases are stirred to reach a highly stable and viscous solution. The THF and water phases are evaporated during a curing cycle by applying a stepping heat treatment. The porous PDMS sheets with a wide range of pore sizes are fabricated by controlling the ratio of water to THF in the mixture. The confocal microscopy images are used to characterize the average pore size and the pore size distribution in the structures. Dogbone samples following the ASTM standard D412 are cut from the porous plates by utilizing a designed cutting die and mechanical press. The specimens are tested under tensile loading to evaluate the effect of the pore size on the mechanical properties of the porous structure. The results demonstrate the ability of the proposed solvent evaporation method to control the stiffness of the porous structure by changing the non-solvent to the solvent ratio in the mixture.

Preparation of porous polylactide microspheres by emulsion-solvent evaporation based on solution induced phase separation

2005 ◽  
Vol 16 (8) ◽  
pp. 622-627 ◽  
Author(s):  
Yi Hong ◽  
Changyou Gao ◽  
Yanchao Shi ◽  
Jiacong Shen
Keyword(s):  
Phase Separation ◽  
Solvent Evaporation

A novel PVdF-based composite gel polymer electrolyte doped with ionomer modified graphene oxide

RSC Advances ◽  
2016 ◽  
Vol 6 (99) ◽  
pp. 97338-97345 ◽  
Author(s):  
Weili Li ◽  
Zhengbao Zhu ◽  
Wenjun Shen ◽  
Jijun Tang ◽  
Gang Yang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Phase Separation ◽  
Polymer Electrolyte ◽  
Gel Polymer Electrolyte ◽  
Separation Technique ◽  
Conducting Channel ◽  
Composite Gel ◽  
Modified Graphene Oxide ◽  
Ion Conducting ◽  
Modified Graphene

A novel composite gel polymer electrolyte (CGPE) was prepared by doping ionomer-modified-graphene (IMGO) into poly(vinylidenefluoride) with a phase separation technique. IMGO can enhance the properties of CGPE due to the effect of the ion-conducting channel.

Procedure for Preparation of Lipid Vesicles (Liposomes) Using the Coacervation (Phase Separation) Technique

Langmuir ◽  
1995 ◽  
Vol 11 (2) ◽  
pp. 483-486 ◽  
Author(s):  
Fumiyoshi Ishii ◽  
Akira Takamura ◽  
Yutaka Ishigami
Keyword(s):  
Phase Separation ◽  
Lipid Vesicles ◽  
Separation Technique

Phase separation technique for liquid dispersions

1984 ◽  
Vol 23 (1) ◽  
pp. 120-123 ◽  
Author(s):  
Pradeep M. Bapat ◽  
Lawrence L. Tavlarides
Keyword(s):  
Phase Separation ◽  
Separation Technique
Sign in / Sign up

Export Citation Format

Share Document