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Effect of the molecular weight of polymer and diluent on the performance of hydrophilic poly(vinyl butyral) porous heddle via thermally induced phase separation
- Source :
- Materials Chemistry and Physics. 261:124227
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- Hydrophilic Poly (vinyl butyral) (PVB) porous heddles were prepared via blending hydrophilic PVB and green diluent Polyethylene glycol (PEG) through liquid-liquid thermally induced phase separation (TIPS) process. To further investigate the effect of the molecular weight (MW) of polymer and diluent on phase diagram of PVB-PEG blending system and performance of hydrophilic PVB porous heddle, the cloud point (Tcloud), microstructure, overall porosity and mechanical property, i.e were mainly analyzed. The results highlighted that the Tcloud of the PVB-PEG blending shifted to lower temperature with increasing PEG MW and PVB MW. Overall porosity reached up to 82.3% and tensile strength was 9.88 MPa when polymer and diluent with lowest MW. To extend the application air, the fabrication conditions of prepared porous heddle were studied. Overall porosity increased and the tensile strength decreased with extrusion temperature increasing. In addition, the PVB-PEG porous heddles proved effective hydrophilic performance and demonstrate the potential application in water treatment.
- Subjects :
- chemistry.chemical_classification
Materials science
02 engineering and technology
Polymer
Polyethylene glycol
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
Microstructure
01 natural sciences
Diluent
0104 chemical sciences
chemistry.chemical_compound
Chemical engineering
chemistry
Ultimate tensile strength
PEG ratio
General Materials Science
Extrusion
0210 nano-technology
Porosity
Subjects
Details
- ISSN :
- 02540584
- Volume :
- 261
- Database :
- OpenAIRE
- Journal :
- Materials Chemistry and Physics
- Accession number :
- edsair.doi...........1875df20946bbd48eddfa36d3b5fe41d