| 纳米无机添加剂对聚偏氟乙烯膜的疏水性影响 |
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| 引用本文： | 张华峰,张玉忠,林立刚,丁晓莉,李泓.纳米无机添加剂对聚偏氟乙烯膜的疏水性影响[J].天津工业大学学报,2011,30(3):5-7. |
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| 作者姓名： | 张华峰 张玉忠 林立刚 丁晓莉 李泓 |
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| 作者单位： | 天津工业大学材料科学与工程学院,天津300160;天津工业大学中空纤维膜材料与膜过程省部共建国家重点实验室培育基地,天津300160 |
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| 基金项目： | 国家自然科学基金项目，高等学校博士学科点专项科研基金 |
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| 摘 要： | 使用非溶剂致相分离法制备聚偏氟乙烯(PVDF)膜,考察了不同铸膜液浓度下PVDF膜的疏水性,研究添加疏水性纳米粒子对PVDF膜疏水性的影响.结果表明:PVDF膜的疏水性随着铸膜液中PVDF含量的升高而降低,疏水性随着纳米颗粒添加量的增大而升高;当铸膜液中PVDF质量分数为10%,纳米SiO2质量分数为2.5%时,PVDF膜的接触角可达136°;当铸膜液中PVDF质量分数为10%,纳米TiO2质量分数为15%时,PVDF膜的接触角可达141°.
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| 关 键 词： | 纳米无机添加剂 PVDF膜 疏水性 表面能 纳米SiO2 纳米TiO2 |
Effect of nano-inorganic additives on hydrophobic of PVDF membrane |
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| ZHANG Hua-feng,ZHANG Yu-zhong,LIN Li-gang,DING Xiao-li,LI Hong.Effect of nano-inorganic additives on hydrophobic of PVDF membrane[J].Journal of Tianjin Polytechnic University,2011,30(3):5-7. |
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| Authors: | ZHANG Hua-feng ZHANG Yu-zhong LIN Li-gang DING Xiao-li LI Hong |
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| Affiliation: | 1,2(1.School of Materials Science and Engineering,Tianjin Polytechnic University,Tianjin 300160,China;2.State Key Laboratory of Hollow Fiber Membrane Material and Process,Tianjin Polytechnic University,Tianjin 300160,China) |
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| Abstract: | Polyvinylidene fluoride(PVDF) hydrophobic membrane is prepared by non-solvent induced phase separation.The effects of PVDF concentration,hydrophobic nano-inorganic additives on hydrophobic capability of PVDF membrane surface(water contact angle,WCA) are investigated.The results show that the hydrophobic capability of PVDF membranes decreases with the increasing of PVDF concentration and increases with the increasing of nano-inorganic additives concenoration.The WCA of the PVDF membrane is 136° when there are 10% PVDF and 2.5% SiO2 in casting solutior.The WCA of the PVDF membrane is 141° when the concentration of PVDF and TiO2 are 10% and 15% respectively. |
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| Keywords: | nano-inorganic additives PVDF membrane hydrophobic surface energy nano-SiO2 nano-TiO2 |
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