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Kimthet Chhouk, Wahyudiono, Hideki Kanda, Shin-Ichro Kawasaki, Motonobu Goto
Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1, Pages 184-193 doi: 10.1007/s11705-017-1678-3
Keywords： micronization curcumin polyvinylpyrrolidone supercritical anti-solvent swirl mixer
Bai Yunxiang,Wu Guoliang,Zhang Chunfang,Gu Jin,Sun Yuping
Strategic Study of CAE 2014, Volume 16, Issue 7, Pages 79-83
PVP/EVAL blend membranes was prepared by blending of PVP with poly(ethylene-co-vinyl alcohol) (EVAL) via immersion precipitation and were used to separate the oil/water emulsion. The chemical structure, morphology, mechanical performance and hydrophilicity of PVP/EVAL blend membranes were characterized by FTIR-ATR, scanning electron microscopy, tension test and water contact angle measurement. The effect of PVP content on the separation performance of oil/water emulsion was investigated. The results indicate that PVP content had distinct effect on the morphology of PVP/EVAL membranes. The tensile strength and elongation at break of PVP/EVAL blend membrane with 10 wt% (the mass percent of PVP in the casting solution) PVP were 1.88 and 1.34 times, respectively, that of pure EVAL membrane. When the content of PVP increased to 4 wt%, oil/water emulsion flux of PVP/EVAL blend membrane were 1.81 times that of the pure EVAL membrane. The rejection ratio was 92.2 %, slightly higher than the pure EVAL membranes. When the content of PVP increased to 10 wt%, the flux recovery ratio after washing increased from 51 % to 77.98 %.
Keywords： PVP EVAL blend membrane oil/water separation immersion precipitation
Title Author Date Type Operation
Micronization of curcumin with biodegradable polymer by supercritical anti-solvent using micro swirl mixer
Kimthet Chhouk, Wahyudiono, Hideki Kanda, Shin-Ichro Kawasaki, Motonobu Goto
Journal Article
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