论文氧化多壁碳纳米管、PEGPVP添加剂对PVDF膜性能影响是适合碳纳米管论文写作的大学硕士及相关本科毕业论文，相关碳纳米管价格开题报告范文和学术职称论文参考文献下载。
Abstract：Introducing hydrophilic additives is an effective method to improve the structure and permeation performance of polyvinylidene fluoride （PVDF） membranes.In this work,oxidized multiwall carbon nanotubes （OMWNTs） accompanied with polyethylene glycol/polyvinyl pyrrolidone （PEG/PVP） additives were employed to modify PVDF membranes.The effects of additives on the structure,permeation performances,hydrophilicity and crystallization behavior of the prepared PVDF membranes were investigated in detail.The results indicate that the addition of OMWNTs can enhance the permeation flux,hydrophilicity and mechanical property of PVDF membranes.The pure water flux（PWF） attains 222.9±12.5 L·m-2·h-1·bar-1 and 256.9±14.8 L·m-2·h-1·bar-1 by adding 0.6 wt.% OMWNTs accompanied with 5% PEG 200 and 3% PVP in the cast solution,respectively.PEG200 additive can enhance the dispersion of OMWNTs,and accelerate the exchange rate between solvent and nonsolvent.PVP working as poreforming agent promotes the growth of pores of PVDF membranes and pure water permeation flux.
Key words：polyvinylidene fluoride （PVDF） membrane； ultrafiltration； multiwall carbon nanotubes （MWNTs）
CLC number： TQ 31 Document code： A Article ID： 10005137（2016）01004109
1 Introduction
In the recent years,polyvinylidene fluoride （PVDF） has become a very popular material to prepare microfiltration/ultrafiltration（MF/UF） membranes for its superior thermal,chemical stability and oxidation resistance etc.[1-4].However,due to its strong hydrophobicity,PVDF membranes are easily fouled by natural organic matters （NOMs）,proteins and other substances.To overcome the shortcomings,various ways were explored to modify PVDF membranes.Among these methods,blending modification is widely used because it makes preparation and modification be accomplished in a single step.And numerous nanofillers were employed to modify PVDF membranes[5-8].
For its high specic surface area,high chemical stability and easy possessing property,multiwall carbon nanotubes （MWNTs） also attracted considerable attentions in membrane field[9].Zhao et al.[10]successfully prepared PVDF/MWNTs membranes and the blending membranes exhibited improved hydrophilicity,pure permeation flux（PWF） and higher bovine serum albumin （BSA） rejection.Ma et al.[11]investigated the effects of oxidized MWNTs （OMWNTs） on PVDF membranes and found that oxygencontaining groups of OMWNTs played a critical role in determining the morphologies and performances of PVDF membranes.However,there are two important issues to retard the application of MWNTs in polymer composites[12].First,it tends to aggregate in the casting solution due to the strong Vander Waals forces.Moreover,smooth surface of CNTs and lack of interfacial bonding will result in weak interfacial adhesion between CNTs and polymer matrix[13].So,lots of works were done to enhance the dispersion and interfacial adhesion[14-16].
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参考文献：
1、 碳纳米管精确治疗的工具 近日由美国劳伦斯利弗莫尔国家实验室的科学家带领的科研小组创造了一个包含短碳纳米管的离子通道，后者可以被插入合成磷脂双分子层或者活的细胞膜以形成小。
2、 小口径单壁碳纳米管最低光学声子模 Abstract： We demonstrate that the lowest optical phonon mode （LOM） of th。
3、 碳纳米点为还原剂纳米金制备其催化性能 摘 要 采用电化学方法合成了具有还原性的荧光碳纳米点（C-dots），并以此为还原剂制备了金纳米粒子 用透射电镜、紫外-可见光谱和荧光光谱对获得。
4、 氮掺杂碳纳米粒子施用对稻田氮素利用率和水稻产量影响 摘要 为明确氮掺杂碳纳米粒子（N-CNPs）在田间条件下对单季稻田氮素利用效率和水稻产量的影响，采用田间小区试验，对不同用量N-CNPs配施尿素。
5、 低碳经济理念、实践、 [摘要]低碳经济是一种以可持续健康发展的理论为核心的发展形态，循环经济与循环模式为低碳经济发展奠定了理论与实践基础。目前低碳经济发展方向主要是关。
6、 3M、安耐驰抗乳化性能欠佳 在防锈性能的检测中，6款产品均表现优秀。而3M和安耐驰汽油清洁剂的抗乳化能力欠佳，或会导致供油不畅。汽油清洁剂，又称汽油添加剂或燃油宝，是指添。