Effect of hypochlorite concentration on properties of posttreated outer-skin ultrafiltration membranes spun from cellulose acetate/poly(vinyl pyrrolidone) blends
文献类型：期刊论文
| 作者 | Qin, JJ; Cao, YM; Li, Y |
| 刊名 | journal of applied polymer science
 |
| 出版日期 | 2005-07-05 |
| 卷号 | 97期号:1页码:227-231 |
| 关键词 | ultrafiltration membranes blends hypochlorite treatment morphology |
| 英文摘要 | an outer-skin hollow-fiber ultrafiltration (uf) membrane was spun from a new dope solution containing cellulase acetate (ca)/poly(vinyl pyrrolidone) (pvp 360k)/n-methyl-2-pyrrolidone (nmp)/water using a wet-spinning technique. the as-spun fibers were posttreated with a hypochlorite solution over a range of concentrations for a fixed period of 24 h. the experimental results showed that the pure water flux of the treated membrane increased with increasing hypochlorite concentration. the treated membrane experienced an increased fouling tendency with increasing hypochlorite concentration because the hydrophilicity of the treated membrane decreased as a result of the removal of pvp contents in the membrane matrix after hypochlorite treatment. sem images revealed that the membrane had an outer dense skin, a porous inner surface, and a spongelike structure, which confirmed that addition of pvp favored the suppression of macrovoids in the membrane. the rnembrane pore size could be significantly increased when the hypochlorite concentration reached 200 mg/l. it was concluded that hypochlorite treatment provided an additional option to easily alter the pore size of uf membranes. © 2005 wiley periodicals, inc. j appl polym sci 97: 227-231, 2005. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | polymer science |
| 研究领域[WOS] | polymer science |
| 关键词[WOS] | hollow-fiber membranes ; performance ; separation ; morphology ; flux |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000229066800028 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/139917]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Singapore Utilities Int Pte Ltd, Ctr Adv Water Technol, Singapore 637723, Singapore 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 3.Innovat Ctr, Inst Environm Sci & Engn, Singapore 637723, Singapore |
| 推荐引用方式 GB/T 7714 | Qin, JJ,Cao, YM,Li, Y. Effect of hypochlorite concentration on properties of posttreated outer-skin ultrafiltration membranes spun from cellulose acetate/poly(vinyl pyrrolidone) blends[J]. journal of applied polymer science,2005,97(1):227-231. |
| APA | Qin, JJ,Cao, YM,&Li, Y.(2005).Effect of hypochlorite concentration on properties of posttreated outer-skin ultrafiltration membranes spun from cellulose acetate/poly(vinyl pyrrolidone) blends.journal of applied polymer science,97(1),227-231. |
| MLA | Qin, JJ,et al."Effect of hypochlorite concentration on properties of posttreated outer-skin ultrafiltration membranes spun from cellulose acetate/poly(vinyl pyrrolidone) blends".journal of applied polymer science 97.1(2005):227-231. |
入库方式： OAI收割
来源：大连化学物理研究所
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