选取经辐射接枝的PVDF(聚偏氯乙烯)-g-PVP(聚乙烯基吡咯烷酮)接枝物粉体及相同PVP含量的PVDF/PVP共混物粉体,利用浸没-沉淀相转化法制备微滤膜,并通过元素分析、红外光谱(FT-IR)、热重分析(TG)、差示扫描量热(DSC)、扫描电镜(SEM)对PVDF膜、PVDF-g-PVP及PVDF/PVP微滤膜的结构和性能进行表征,同时对膜的接触角和水通量进行测试.实验结果表明,PVDF-g-PVP及PVDF/PVP微滤膜的亲水性随PVP含量的增加而增强,但二者的热稳定性与PVDF膜相比略有降低.由于PVDF/PVP微滤膜中的PVP在成膜过程中主要作致孔剂,大部分会流失,因此与PVDF-g-PVP微滤膜相比,相同PVP含量的铸膜液在成膜后PVDF/PVP膜中的N含量较低,膜表面孔数较多,水通量较大,但亲水性略低.
参考文献
| [1] | Chang Y;Shih YJ;Ruaan RC;Higuchi A;Chen WY;Lai JY .Preparation of poly(vinylidene fluoride) microfiltration membrane with uniform surface-copolymerized poly(ethylene glycol) methacrylate and improvement of blood compatibility[J].Journal of Membrane Science,2008(1/2):165-174. |
| [2] | Mathias Ulbricht .Advanced functional polymer membranes[J].Polymer: The International Journal for the Science and Technology of Polymers,2006(7):2217-2262. |
| [3] | 卞晓锴,施柳青,于洋,邓波,李景烨,陆晓峰.粉体辐射接枝丙烯酸的聚偏氟乙烯超滤膜的制备[J].膜科学与技术,2012(02):10-18. |
| [4] | Yang X X;Deng B;Liu Z Y et al.Microfiltration membranes prepared from acryl amide grafted poly (vinylidene fluoride) powder and their pH sensitive behavior[J].Journal of Membrane Science,2010,362:298-305. |
| [5] | Yang X X;Zhang B W;Liu Z Y et al.Preparation of the antifouling microfiltration membranes from poly (N,Ndimethylaerylarnide)grafted poly(vinylidene fluoride) (PVDF) powder[J].Journal of Materials Chemistry,2011,21:11908-11915. |
| [6] | Deng B;Yu M;Yang X X et al.Antifouling microfiltration membranes prepared from acrylic acid or methacrylic acid grafted poly(vinylidene fluoride) powder synthesized via pre-irradiation induced graft polymerization[J].Journal of Membrane Science,2010,350:252-258. |
| [7] | Yu, M.;Zhang, B.;Deng, B.;Yang, X.;Sheng, K.;Xie, L.;Lu, X.;Li, J. .Preirradiation-induced emulsion graft polymerization of glycidyl methacrylate onto poly(vinylidene fluoride) powder[J].Journal of Applied Polymer Science,2010(6):3575-3581. |
| [8] | Chen L F;Hou Z C;Lu X F et al.Antifouling microfiltration membranes prepared from poly (vinylidene uoride)-graft-poly(N-vinyl pyrrolidone) powders synthesized via pre-irradiation induced graft polymerization[J].Journal of Applied Polymer Science,2013,128(06):3949-3956. |
| [9] | Chen NP.;Hong L. .Surface phase morphology and composition of the casting films of PVDF-PVP blend[J].Polymer: The International Journal for the Science and Technology of Polymers,2002(4):1429-1436. |
| [10] | Liu F;Moghareh Abedb M R;Li K .Preparation and characterization of poly(vinylidene fluoride) (PVDF)based ultrafiltration membranes using nano γ-Al2 O3[J].Journal of Membrane Science,2011,366:97-103. |
| [11] | Lanceros-Méndez S;Mano J F;Costa A M et al.FTIR and DSC studies of mechanically deformed β-PVDF films[J].J Macromol Sci Part B:Phys,2001,40(3-4):517-527. |
| [12] | Peng Q;Lu SQ;Chen DZ;Wu XQ;Fan PF;Zhong R;Xu YW .Poly(vinylidene fluoride)-graft-poly (N-vinyl-2-pyrrolidone) copolymers prepared via a RAFT-mediated process and their use in antifouling and antibacterial membranes[J].Macromolecular bioscience,2007(9/10):1149-1159. |
| [13] | Alfonso G C;Turturro A .Studies of poly(vinylidene fluoride)/poly(vinyl pyrrolidone) blends.L Thermal transitions by differential scanning calorimetry[J].JOURNAL OF POLYMER SCIENCE PART B:POLYMER PHYSICS,1989,27:1195-1208. |
| [14] | Han M J;Nam S T .Thermodynamie and rheological variation in polysulfone solution by PVP and its effect in the preparation of phase inversion memebrane[J].Journal of Membrane Science,2002,202:55-61. |
| [15] | 杨晓天,许振良,魏永明.添加剂对PVDF凝胶速率和膜性能的影响[J].膜科学与技术,2007(04):26-30. |
| [16] | 胡亮平,贺高红,赵薇,张玲玲,张建生.PVP添加剂对聚醚酰亚胺超滤膜的影响[J].膜科学与技术,2008(05):110-113. |
| [17] | Deng B;Yang X X;Xie L D et al.Microfiltration membranes with pH dependent property prepared from poly (methacrylic acid) grafted polyethersulfone powder[J].Journal of Membrane Science,2009,330:363-368. |
| [18] | Zhou Yuan;Xi Dan-Li .Porous PVDF/TPU blends asymmetric hollow fiber membranes prepared with the use of hydrophilic additive PVP (K30)[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2008(1/3):438-447. |
| [19] | Zhang M;Nguyen Q T;Ping Z .Hydrophilic modification of poly (vinylidene fluoride) microporous membrane[J].Journal of Membrane Science,2009,27:78-86. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%