scholarly journals EFFECT OF THE SINTERING PROCESS ON THE MORPHOLOGY AND MECHANICAL PROPERTIES OF La0.6Sr0.4Co0.2Fe0.8O3-δ ASYMMETRIC FLAT MEMBRANES PREPARED BY THE PHASE INVERSION METHOD

2019 ◽  
pp. 305-314
Author(s):  
Silvana Dwi Nurherdiana
Keyword(s):  
Mechanical Properties ◽  
Phase Inversion ◽  
Inversion Method ◽  
Sintering Process ◽  
Phase Inversion Method ◽  
Flat Membranes ◽  
Morphology And Mechanical Properties

scholarly journals Pengaruh Penambahan Epiklorohidrin Terhadap Sifat Mekanik dan Daya Serap Film Khitosan Sebagai Adsorben

2017 ◽  
Vol 12 (1) ◽  
pp. 31
Author(s):  
Nisfayati Juir ◽  
Rahmi Rahmi ◽  
Marlina Marlina
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Tensile Test ◽  
Phase Inversion ◽  
Crosslinking Agent ◽  
Chitosan Film ◽  
Inversion Method ◽  
Test Results ◽  
Crosslinked Chitosan ◽  
Phase Inversion Method

Pembuatan film khitosan berikatan silang epiklorohidrin telah dilakukan dengan metode inversi fasa. Pada penelitian ini khitosan dimodifikasi dengan epiklorohidrin untuk memperbaiki sifat mekanik dan ketahanannya terhadap asam. Film khitosan hasil modifikasi diuji sifat mekaniknya dengan alat uji tarik dan daya serapnya diuji terhadap ion Cd2+. Hasil uji tarik menunjukkan bahwa dengan adanya pembentuk ikat silang epiklorohidrin  pada khitosan dapat meningkatkan tensile strength film khitosan dan optimum pada komposisi 54,128 % b/b. Hasil uji adsorpsi terhadap ion Cd2+ menunjukkan bahwa penambahan epiklorohidrin dapat meningkatkan kapasitas penyerapan ion Cd2+ sebesar 31,33 %  dibandingkan dengan film khitosan tanpa silang.  Preparation of epichlorohydrin crosslinked  chitosan film has been done by phase inversion method. In this study, chitosan was modified with epichlorohydrin by the purpose of improving its  mechanical properties and adsorption capasity. Mechanical properties of crosslinked chitosan film was examined by tensile test. Adsorption study was done for Cd2+ ions removal. Tensile test results showed  epichlorohydrin as crosslinking agent of chitosan can improve tensile strength and optimum at 54.128 % w/w of composition. The adsorption results for Cd2+ ions showed the addition of epichlorohydrin in chitosan can increase the adsorption capacity of Cd2+ ions 31,33 % compared with non-crosslinked chitosan films.

A straight, open and macro-porous fuel electrode-supported protonic ceramic electrochemical cell

2021 ◽  
Author(s):  
Yuxin Pan ◽  
Kai Pei ◽  
Yucun Zhou ◽  
Tong Liu ◽  
Meilin Liu ◽  
...  
Keyword(s):  
Phase Inversion ◽  
Electrochemical Cell ◽  
Inversion Method ◽  
Phase Inversion Method

A straight, open and macro-porous Ni–BaZr0.1Ce0.7Y0.1Yb0.1O3 fuel electrode-supported protonic ceramic electrochemical cell has been fabricated by a modified phase-inversion method.

A novel PVFM based membranes prepared via phase inversion method and its application in GPE

Polymer ◽  
2013 ◽  
Vol 54 (18) ◽  
pp. 4807-4813 ◽  
Author(s):  
Yan Ren ◽  
Fang Lian ◽  
Yan Wen ◽  
Hong-Yan Guan
Keyword(s):  
Phase Inversion ◽  
Inversion Method ◽  
Phase Inversion Method

scholarly journals Formulation, characterization and stability of o/w nanoemulsion containing rice bran oil prepared by emulsion phase inversion

Food Research ◽  
2020 ◽  
Vol 4 (4) ◽  
pp. 1025-1029
Author(s):  
Y.P. Sari ◽  
S. Raharjo ◽  
U. Santoso ◽  
Supriyadi
Keyword(s):  
Rice Bran ◽  
Phase Inversion ◽  
Rice Bran Oil ◽  
Coconut Oil ◽  
Tween 80 ◽  
Polydispersity Index ◽  
Inversion Method ◽  
Emulsion Phase ◽  
Naturally Occurring ◽  
Phase Inversion Method

Rice bran oil (RBO) contains naturally occurring antioxidants such as carotenoids, tocopherol, and γ-oryzanol. The aim of this research was to formulate and evaluate the characteristics of nanoemulsion which was prepared using RBO containing naturally occurring antioxidants. The RBO-in-water nanoemulsion was prepared by the emulsion phase inversion method. The oil phase of the nanoemulsion was prepared by either virgin coconut oil (VCO) or palm oil (PO) combined with RBO with the ratio of 5:5; 4:6, 3:7, 2:8 and 0:10. Tween 80 was used as a surfactant. The surfactant to oil ratios was predetermined at 2.5:1.0 and 3.0:1.0. The aqueous phase (80% w/w) was titrated into an organic phase that consisted of Tween 80 and oil phase (approximately 20% w/w). Droplet size, zeta-potential and polydispersity index of the nanoemulsion were used as the main parameters. The results showed that the smallest droplet (<100 nm) of the nanoemulsion was obtained when the ratio of VCO: RBO at 3:7 and the ratio of PO: RBO at 4:6 with the surfactant to oil ratio (SOR) was 2.5. Nanoemulsion with a relatively small polydispersity index of 0.3 was achieved when the ratio of PO: RBO was 3:7 and SOR at 3. All of the freshly prepared RBO containing nanoemulsion have good stability with zetapotential values of < -30 mV. Nanoemulsions were stable against centrifugation at 2300 rpm for 15 mins, but they were not stable against heating at 105°C for 5 hrs. The RBO-inwater nanoemulsion could be successfully prepared by phase inversion method, by combining RBO with either VCO or PO at different ratios.

scholarly journals Transport Properties, Mechanical Behavior, Thermal and Chemical Resistance of Asymmetric Flat Sheet Membrane Prepared from PSf/PVDF Blended Membrane on Gauze Supporting Layer

2018 ◽  
Vol 18 (2) ◽  
pp. 257 ◽  
Author(s):  
Nita Kusumawati ◽  
Pirim Setiarso ◽  
Maria Monica Sianita ◽  
Supari Muslim
Keyword(s):  
Polyvinylidene Fluoride ◽  
Phase Inversion ◽  
Membrane Resistance ◽  
Porous Membrane ◽  
Inversion Method ◽  
Gravimetric Analysis ◽  
Scanning Calorimetry ◽  
Color Changes ◽  
Casting Solution ◽  
Phase Inversion Method

Asymmetric polysulfone (PSf) membrane is prepared using phase inversion method and blending with polyvinylidene fluoride (PVDF) on the gauze solid support. Casting solution composition optimization has been done to get PSf/PVDF membrane with best characteristics and permeability. The result shows that blending on PSf with PVDF polymer using phase inversion method has been very helpful in creating an asymmetric porous membrane. Increased level of PVDF in casting solution has increased the formation of asymmetry structure and corresponding flux membrane. The result from thermal test using Differential Scanning Calorimetry (DSC)-Thermal Gravimetric Analysis (TGA) shows the resistance of the membrane to temperature 460 °C. Membrane resistance against acid looks from undetectable changes on infrared spectra after immersion process in H2SO4 6–98 v/v%. While membrane color changes from white to brownish and black is detected after the immersion process in sodium hydroxide (NaOH) 0.15–80 w/v%.

scholarly journals An Experimental Investigation: Effect of Phase Inversion Methods on Membrane Structure and Its Performance on PEG Filtration

2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Masooma Irfan ◽  
Hatijah Basri ◽  
M. Irfan
Keyword(s):  
Phase Separation ◽  
Phase Inversion ◽  
Multiwall Carbon Nanotubes ◽  
Polymeric Membranes ◽  
Inversion Method ◽  
Inversion Process ◽  
Membrane Morphology ◽  
And Performance ◽  
Phase Inversion Method ◽  
Multiwall Carbon

In this work, the effect of different phase inversion process on membrane morphology and performance was studied. Polyethersulfone (PES) based polymeric membranes was fabricated containing polyvinylpyrrolidone (PVP) and carboxylic functionalized multiwall carbon nanotubes (MWCNT) as additives and polyethylene glycol (PEG) having a molecular weight 1K, 10K and 35K (Dalton) were used as a model solution for observing the rejection/filteration ability of fabricated membranes. Non-solvent induce phase separation (NIP) and dry-wet phase separation (DWP) method was adopted for membrane synthesis. The FTIR spectra showed that PVP/MWCNT was effectively blended with PES polymer and different phase inversion method led to different internal morphologies of membranes as confirmed by FESEM images. The PEG rejection results suggested that membranes formed by DWP method had approximately double rejection ability than membranes formed by NIP process.

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