Preparation and characterization of PVDF/alkali-treated-PVDF blend membranes
文献类型：期刊论文
| 作者 | Liu, Q. F.; Li, F. Z.; Guo, Y. Q.; Dong, Y. L.; Liu, J. Y.; Shao, H. B.; Fu, Z. M. |
| 刊名 | MEMBRANE WATER TREATMENT
 |
| 出版日期 | 2016-09-01 |
| 卷号 | 7期号:5页码:417-431 |
| 关键词 | PVDF alkaline treatment blend hydrophilicity |
| ISSN号 | 2005-8624 |
| 产权排序 | [Liu, Q. F.; Li, F. Z.; Guo, Y. Q.; Dong, Y. L.; Liu, J. Y.; Fu, Z. M.] Inner Mongolia Univ, Coll Environm & Resources, 235 West Coll Rd, Inner Mongolia 010021, Hohhot, Peoples R China; [Shao, H. B.] Chinese Acad Sci, Key Lab Coastal Biol & Bioresources Utilizat, Yantai Inst Coastal Zone Res YIC, Yantai 264003, Peoples R China; [Shao, H. B.] Jiangsu Acad Agr Sci, Inst Biotechnol, Nanjing 210014, Jiangsu, Peoples R China |
| 通讯作者 | Fu, ZM (reprint author), Inner Mongolia Univ, Coll Environm & Resources, 235 West Coll Rd, Inner Mongolia 010021, Hohhot, Peoples R China. ; Shao, HB (reprint author), Chinese Acad Sci, Key Lab Coastal Biol & Bioresources Utilizat, Yantai Inst Coastal Zone Res YIC, Yantai 264003, Peoples R China. ; Shao, HB (reprint author), Jiangsu Acad Agr Sci, Inst Biotechnol, Nanjing 210014, Jiangsu, Peoples R China. ndlqf@imu.edu.cn ; 937366330@qq.com ; guoyanqing563650@163.com ; dongyilun1993@163.com ; 59141643@qq.com ; shaohongbochu@126.com ; fuzhm2012@163.com |
| 英文摘要 | Poly(vinylidene fluoride) (PVDF) powder was treated with aqueous sodium hydroxide to obtain partially defluorinated fluoropolymers with expected properties such as improving hydrophilicity and fouling resistance. Raman spectrum and FT-IR results confirmed the existence of conjugated carbon double bonds after alkaline treatment. As the concentration increased, the degree of defluorination increased. The morphology and structure of membranes were examined. The permeation performance was investigated. The results showed that membrane's hydrophilicity increased with increase of the percentage of alkaline treated PVDF powder. Moreover, in terms of the water contact angle, it decreased from 92 degrees to a minimum of 68 degrees; while water up take increased from 128 to 138%. Fluxof pure water and the cleaning efficiency increased with the increase of alkaline treated PVDF powder. The fouling potential also decreased with the increase of the percentage of alkaline treated PVDF powder. The reason that makes blending PVDF show different characteristics because of partial defluorination, which led the formation of conjugated C = C bonds and the inclusion of oxygen functionalities. The polyene structure followed by hydroxide attack to yield hydroxyl and carbonyl groups. Therefore, the hydrophilicity of blending membrane was improved. The SEM and porosity measurements showed that no obvious variations of the pore dimensions and structures for blend membranes were observed. Mechanical tests suggest that the high content of the alkaline treated PVDF result in membranes with less tolerance of tensile stress and higher brittleness. TGA results exhibited that the blend of alkaline treated PVDF did not change membrane thermal stability. |
| 研究领域[WOS] | Engineering ; Water Resources |
| 关键词[WOS] | POLY(VINYLIDENE FLUORIDE) ; PERFORMANCE ; HYDROPHILICITY ; IMMOBILIZATION ; HYDROXIDE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000391197000003 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/17504]  |
| 专题 | 烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室 |
| 作者单位 | 1.Inner Mongolia Univ, Coll Environm & Resources, 235 West Coll Rd, Inner Mongolia 010021, Hohhot, Peoples R China 2.Chinese Acad Sci, Key Lab Coastal Biol & Bioresources Utilizat, Yantai Inst Coastal Zone Res YIC, Yantai 264003, Peoples R China 3.Chinese Acad Sci, Key Lab Coastal Biol & Bioresources Utilizat, Yantai Inst Coastal Zone Res YIC, Yantai 264003, Peoples R China 4.Jiangsu Acad Agr Sci, Inst Biotechnol, Nanjing 210014, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Q. F.,Li, F. Z.,Guo, Y. Q.,et al. Preparation and characterization of PVDF/alkali-treated-PVDF blend membranes[J]. MEMBRANE WATER TREATMENT,2016,7(5):417-431. |
| APA | Liu, Q. F..,Li, F. Z..,Guo, Y. Q..,Dong, Y. L..,Liu, J. Y..,...&Fu, Z. M..(2016).Preparation and characterization of PVDF/alkali-treated-PVDF blend membranes.MEMBRANE WATER TREATMENT,7(5),417-431. |
| MLA | Liu, Q. F.,et al."Preparation and characterization of PVDF/alkali-treated-PVDF blend membranes".MEMBRANE WATER TREATMENT 7.5(2016):417-431. |
入库方式： OAI收割
来源：烟台海岸带研究所
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