Fabrication and manipulation of hierarchically porous PEEK membranes based on crystallization-induced phase segregation and sea-island structures

IF 3.9 3区化学 Q2 POLYMER SCIENCE

Journal of Polymer Science Pub Date : 2024-07-28 DOI:10.1002/pol.20240490

Xiong Cheng, Jiayao Wang, Mingming Ding, Yong-Biao Yang, Joonho Bae

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Abstract

Poly ether ether ketone (PEEK) is a premier engineering plastic, which has gained considerable attention in recent years. Our prior research investigated crystallization template techniques and pore formation mechanisms within the PEEK/poly (ether imide) system, paving the way for the development of hierarchically porous membranes (HPMs). Compared to single-porous membranes, HPMs demonstrate enhanced flux and high mass transfer efficiency simultaneously, effectively mitigating the trade-off effects. In this study, we focused on fabricating PEEK HPMs through precise manipulation of a polymer ternary blend system. The meticulous tuning enables intricate control of the hierarchical pore morphology of PEEK at two distinct scales. The finite element simulations not only underscored the crucial role of hierarchical pores in bolstering separation efficiency, but also exhibited strong concordance with the experimental findings. This study provides guidance for future optimization of HPMs with superior separation performance.

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基于结晶诱导的相分离和海岛结构的分层多孔聚醚醚酮膜的制造与操作

聚醚醚酮（PEEK）是一种重要的工程塑料，近年来备受关注。我们之前的研究调查了 PEEK/聚（醚酰亚胺）体系中的结晶模板技术和孔隙形成机制，为开发分层多孔膜（HPMs）铺平了道路。与单孔膜相比，HPMs 可同时提高通量和传质效率，有效地减轻了权衡效应。在本研究中，我们重点研究了如何通过精确控制聚合物三元共混体系来制造 PEEK HPMs。通过细致的调整，可以在两个不同的尺度上对 PEEK 的分层孔隙形态进行复杂的控制。有限元模拟不仅强调了分层孔隙在提高分离效率方面的关键作用，而且与实验结果非常吻合。这项研究为今后优化具有优异分离性能的 HPMs 提供了指导。

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来源期刊

Journal of Polymer Science POLYMER SCIENCE-

CiteScore

6.30

自引率

5.90%

发文量

264

期刊介绍： Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology. As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology.