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摘要：本实验采用石墨烯(G)和氧化石墨烯(GO)制备性能优越的平板复合膜。首先，膜材料中的GO选择Hummers法来制备，Hummers法最大的改进在于氧化剂KMnO4的使用，使得氧化反应过程的时间明显减少，实验最终可得到了易在水中发生溶胀而层离的规整形氧化石墨烯。然后，将G、GO添加到铸膜液中，采用浸没沉淀相转化法制备得到复合平板膜，其中是将一定比例的PVDF和两亲性聚合物单体及定量的G\GO直接加入N,N-二甲基乙酰胺（DMAc）与磷酸三乙酯（TEP）混溶的液体中，待聚合物全部溶解后，再把适量的引发剂偶氮二异丁氰（AIBN）添加进去，于70ºC条件下原位聚合反应12小时，原位聚合后的铸膜液经由溶剂-非溶剂致相制得PVDF膜。对制得的PVDF膜进行性能表征，比如膜的凝胶速率、纯水通量、亲水性及机械性能等。实验结果表明，制备所得的平板复合膜具有亲水性好、水通量高及使用价值高等特性。22750
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毕业论文关键字：G\GO、聚偏氟乙烯（PVDF）、原位聚合法、复合平板膜
Preparation and Study graphene oxide
composite membrane
Abstract: This experiment adopted Graphene (G) and Graphene oxide (GO) for preparing superior performance of composite flat membrane. First, the membrane material is prepared GO select Hummers method, Hummers method where the biggest improvement is the use of KMnO4 oxidizer, so that the time of the oxidation reaction process significantly improved the final experiment prone to delamination in water swelling Regulation Plastic graphene oxide.Then, add G or GO to the membrane materials, prepared by immersion precipitation phase inversion method of composite membrane, which is to a certain proportion of PVDF and two dear polymer monomer and quantitative G\GO directly into N, N- two dimethyl acetamide (DMAc) and phosphoric acid ethyl ester three (TEP) in the mixed solvent, waiting for the polymer is all dissolved, adding initiator Azo-iso-butyronitrile (AIBN), At 70ºC for 12 hours in situ polymerization conditions, the casting solution via the in situ polymerization solvent - non-solvent induced phase obtained PVDF membrane.The PVDF membrane was subjected to characterization, such as the rate of the gel film, pure water flux, hydrophilicity and mechanical properties.The experimental results show that, flat composite membrane prepared has good hydrophilicity, high water flux, high pollution resistance and use characteristics of high value.
Keyword：G\GO、PVDF、situ polymerization、composite flat membrane
目录
1文献综述 1
1.1 膜分离技术及膜材料简介 1
1.1.1 引言 1
1.1.2 常见的膜及膜材料要求 1
1.1.3 PVDF 2
1.2 PVDF膜的制备方法 2
1.2.1 浸没沉淀法(NIPS) 2
1.2.2 热致相分离法（TIPS） 3
1.2.3蒸发助热致相分离（TAEPS） 3
1.3 NIPS法制PVDF膜的影响因素 4
1.3.1溶剂对PVDF膜的影响 4
1.3.2聚合物浓度 4
1.3.3凝胶浴介质的影响 5
1.3.4凝固浴温度的影响 5
1.3.5停留蒸发时间对膜的影响 6
1.3.6非溶剂添加剂的影响 6
1.4石墨烯\氧化石墨烯及其制备 7
1.4.1石墨烯\氧化石墨烯 7
1.4.2氧化石墨烯的制备方法 9
2实验部分 11
2.1 实验试剂和仪器 11
2.1.1 实验主要原料和试剂 11
2.1.2 主要设备和仪器 12
2.2 实验内容及装置 12
2.2.1 氧化石墨烯制备 12