1. 毕业设计（论文）的内容和要求
聚偏氟乙烯（PVDF）因其优越的机械强度、热稳定性、化学稳定性被广泛应用于膜过程中。
PVDF是一种半结晶性聚合物，它有至少5种结晶形式 (α, β, γ, δ and ε)，其中β晶型的压电性能受到越来越多研究者的关注。
Coster课题组研究发现，施加交变电场引起PVDF膜原位振动，实现膜材料原位振动和流体力学协同效应对膜污染的源头控制，这对膜的长期使用具有重大意义。
2. 参考文献
[1] C. Wencai, Z. Qingyin, Advance in applied research on PVDF membrane, New Chemical Materials, (2018).[2] M.G. Broadhurst, G.T. Davis, Physical basis for piezoelectricity in PVDF, Ferroelectrics, 60 (1984) 3-13.[3] V.V. Kochervinskii, Piezoelectricity in crystallizing ferroelectric polymers: Poly(vinylidene fluoride) and its copolymers (A review), Crystallography Reports, 48 (2003) 649-675.[4] P. Martins, A.C. Lopes, S. Lanceros-Mendez, Electroactive phases of poly(vinylidene fluoride): Determination, processing and applications, Progress in Polymer Science, 39 (2014 ) 683-706.[5] Z. Cui, E. Drioli, Y.M. Lee, Recent progress in fluoropolymers for membranes, Progress in Polymer Science, 39 (2014) 164-198.[6] M.M. Tao, F. Liu, B.-r. Ma, L.-x. Xue, Effect of solvent power on PVDF membrane polymorphism during phase inversion, Desalination, 316 (2013) 137-145.[7] V.V. Kochervinskii, The structure and properties of block poly(vinylidene fluoride) and systems based on it, Russian Chemical Reviews, 65 (2007) 865.[8] H. Liu, X. Liao, The effects of fluorocarbon special surfactant (FS-30) additive on the phase inversion, morphology and separation performance of poly(vinylidene fluoride) (PVDF) membranes, Separation and Purification Technology, (2019).
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