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首页> 外文期刊>RSC Advances >Fabricating PES/SPSF membrane via reverse thermally induced phase separation (RTIPS) process to enhance permeability and hydrophilicity
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Fabricating PES/SPSF membrane via reverse thermally induced phase separation (RTIPS) process to enhance permeability and hydrophilicity

机译：通过反向热诱导的相分离（RTIPS）方法制造PES / SPSF膜以增强渗透性和亲水性

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A new method was presented to prepare hydrophilic PES/SPSF flat-sheet membrane by a reverse thermally induced phase separation (RTIPS) method to enhance permeability and hydrophilicity. SPSF was self-made and was blended to improve the hydrophilicity of PES flat-sheet membrane. The performance of PES/SPSF flat-sheet membrane, which varied with SPSF content and coagulation water bath temperature, was investigated by SEM, FTIR, AFM, pure water flux, BSA rejection rate, water contact angle and long-term testing. FTIR results proved the successful blending of SPSF with PES membrane, SEM images showed that dense skin surface and finger-like structure emerged in the membrane fabricated by NIPS method, while a porous top surface and sponge-like structure emerged in the membrane fabricated by RTIPS. The pure water flux and BSA rejection rate of the membrane for RTIPS were both higher than those for NIPS. AFM images revealed that surface roughness increased with the addition of SPSF. The water contact angle decreased with the increase of SPSF, which illustrated better hydrophilicity with the addition of SPSF. The flat-sheet PES membrane prepared with 2 wt% SPSF by RTIPS method exhibited decent properties, reaching maximum pure water flux (966 L m ~(?2) h ~(?1) ) and at the same time the BSA rejection rate was 79.2%. The long-term test proved that the anti-fouling performance of PES/SPSF membrane was better than that of PES membrane.
机译：提出了一种新方法以通过反向热诱导的相分离（RTIPS）方法制备亲水性PES / SPSF平板膜以增强渗透性和亲水性。 SPSF是自制的，被混合以改善PES平板膜的亲水性。通过SEM，FTIR，AFM，纯净水通量，BSA抑制率，水接触角和长期试验研究了PES / SPSF平板膜的性能，其随SPSF含量和凝固水浴温度而变化。 FTIR结果证明了SPSF与PES膜的成功混合，SEM图像显示，在RTIPS制造的膜中制造的膜中出现的致密皮肤表面和指状结构，同时在RTIPS制造的膜中出现多孔顶面和海绵状结构。用于RTIPS的纯净水通量和BSA抑制率均高于NIPS。 AFM图像显示，随着SPSF的添加，表面粗糙度增加。随着SPSF的增加，水接触角度降低，从而通过添加SPSF来更好地亲密性。用RTIPS法制备2wt％SPSF制备的平板PES膜表现出体面的性质，达到最大纯净水通量（966 L m〜（Δ2）H〜（？1）），同时BSA抑制率是79.2％。长期试验证明，PES / SPSF膜的防污性能优于PES膜的抗污染性能。

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