Abstract Polyphenylene sulfide (PPS) hydrophobic micro-porous flat sheet membranes were fabricated with diphenyl ketone (DPK) and benzoin (BZ) as mixed diluent via thermally induced phase separation (TIPS). It was found that the mass ratio of DPK/BZ had a strong influence on the structure and property of PPS membranes. As DPK content increased, the interaction between PPS and diluents reduced linearly and the membrane micro-structures changed from honeycomb, bi-continuous to spherical particle structure via liquid-liquid (L-L) phase separation process. Herein, the prepared PPS micro-porous membranes were used in vacuum membrane distillation (VMD) for the first time, and they showed the strong hydrophobicity and high salt rejection ratio. Especially, the membrane prepared from the mixed diluent of 15 wt% DPK and 85 wt% BZ with the bi-continuous network structure and Berberis thunbergii var. atropurpurea Chenault leaf-like structure achieved the maximum permeate flux of 22.8 L/m−2 h−1 and the highest salt rejection of 99.99%. Most importantly, the membrane with Berberis thunbergii var. atropurpurea Chenault leaf-like leaf structure performed excellent long-term stability in corrosive water membrane distillation (MD) experiment (3.5 wt% NaCl and 10 wt% NaOH as feed solution). Those results show the potential application of this novel type of membrane in the treatment of corrosive sewage.

中文翻译：

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PPS微孔膜的制备、表征及其在真空膜蒸馏中的优异性能

摘要 以二苯酮（DPK）和安息香（BZ）为混合稀释剂，通过热致相分离（TIPS）制备聚苯硫醚（PPS）疏水微孔平板膜。结果表明，DPK/BZ的质量比对PPS膜的结构和性能有很大影响。随着DPK含量的增加，PPS与稀释剂之间的相互作用线性降低，膜微结构通过液-液（LL）相分离过程从蜂窝状、双连续向球形颗粒结构转变。在此，制备的 PPS 微孔膜首次用于真空膜蒸馏 (VMD)，显示出强疏水性和高脱盐率。尤其，由15 wt% DPK和85 wt% BZ的混合稀释剂制备的具有双连续网络结构和小檗变种的膜。atropurpurea Chenault 叶状结构实现了 22.8 L/m-2 h-1 的最大渗透通量和 99.99% 的最高脱盐率。最重要的是，膜与 Berberis thunbergii var。atropurpurea Chenault 叶状叶结构在腐蚀性水膜蒸馏 (MD) 实验（3.5 wt% NaCl 和 10 wt% NaOH 作为进料溶液）中表现出优异的长期稳定性。这些结果显示了这种新型膜在处理腐蚀性污水中的潜在应用。带有小檗变种的膜。atropurpurea Chenault 叶状叶结构在腐蚀性水膜蒸馏 (MD) 实验（3.5 wt% NaCl 和 10 wt% NaOH 作为进料溶液）中表现出优异的长期稳定性。这些结果显示了这种新型膜在处理腐蚀性污水中的潜在应用。带有小檗变种的膜。atropurpurea Chenault 叶状叶结构在腐蚀性水膜蒸馏 (MD) 实验（3.5 wt% NaCl 和 10 wt% NaOH 作为进料溶液）中表现出优异的长期稳定性。这些结果显示了这种新型膜在处理腐蚀性污水中的潜在应用。