| 碳纳米管-聚偏氟乙烯共混超滤膜的制备及性能研究 |
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| 引用本文： | 吕寅,俞昌朝,沈江南. 碳纳米管-聚偏氟乙烯共混超滤膜的制备及性能研究[J]. 水处理技术, 2012, 38(2): 41-44,48 |
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| 作者姓名： | 吕寅 俞昌朝 沈江南 |
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| 作者单位： | 1. 杭州临安自来水有限公司,浙江临安,311300
2. 浙江工业大学化材学院,浙江杭州,310014 |
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| 摘 要： | 采用硫酸、硝酸混酸改性多壁碳纳米管(MWNTs),将改性的MWNTs分散于1-甲基-2-吡咯烷酮(NMP)中,再与聚偏氟乙烯(PVDF)的NMP溶液混合,采用浸没相转化法制备MWNTs-PVDF复合超滤膜,考察了制膜条件对膜结构和性能的影响。结果表明,当铸膜液中MWNTs的质量分数到达0.09%、凝胶浴温度达到30℃时,纯水通量最大;随着预蒸发时间的延长,纯水通量下降;铸膜液溶解温度在40～80℃时,所制膜的纯水通量也随溶解温度的升高而增加。
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| 关 键 词： | 多壁碳纳米管 聚偏氟乙烯 相转化 亲水性 |
PREPARATION AND CHARACTERIZATION OF ULTRAFILTRATION MEMBRANES OF MWNTs/PVDF BLEND |
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| Lv Yin , Yu Changchao , Shen Jiangnan. PREPARATION AND CHARACTERIZATION OF ULTRAFILTRATION MEMBRANES OF MWNTs/PVDF BLEND[J]. Technology of Water Treatment, 2012, 38(2): 41-44,48 |
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| Authors: | Lv Yin Yu Changchao Shen Jiangnan |
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| Affiliation: | 1.Linan Running-Watercompany,Linan 311300,China; 2.College of Chemical Engineering and Materials Science,Zhejiang University of Technology,Hangzhou 310014,China) |
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| Abstract: | Sulfuric acid,nitric acid mixed acid were used to modify multi-walled carbon nanotubes(MWNTs).The modified MWNTs was first dispersed in 1-methyl-2-pyrrolidone(NMP) and then mixed with NMP solution of polyvinylidene fluoride(PVDF).The MWNTs-PVDF composite membrane was prepared by immersion phase inversion method,the conditions on the membrane structure and properties was investigated.The results showed that when the casting solution of MWNTs reached 0.09% and gel bath temperature reached 30 ℃,the flux of pure water was the highest;with the prolonging of pre-evaporation time,the pure water flux declined;when the temperature of casting solution dissolved during 40～80 ℃,the water flux of the membrane increased with the solution temperature increasing. |
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| Keywords: | MWNTs PVDF phase inversion hydrophilicity |
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