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基于半结晶聚合物的拉伸诱导旋铸膜用于高效微滤

Stretch-Induced Spin-Cast Membranes Based on Semi-Crystalline Polymers for Efficient Microfiltration.

作者信息

Saleem Junaid, Moghal Zubair Khalid Baig, Hafeez Ahsan, Sajjad Samra, Shoaib Mohammad, Alahmad Johaina, McKay Gordon

机构信息

Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha P.O. Box 5825, Qatar.

Center for Advanced Materials, Qatar University, Doha P.O. Box 2713, Qatar.

出版信息

Polymers (Basel). 2024 Jun 25;16(13):1799. doi: 10.3390/polym16131799.

DOI:10.3390/polym16131799
PMID:39000655
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11243820/
Abstract

Microfiltration membranes derived from semi-crystalline polymers face various challenges when synthesized through the extrusion-casting technique, including the use of large quantities of polymer, long casting times, and the generation of substantial waste. This study focuses on synthesizing these membranes using spin-casting, followed by stretch-induced pore formation. Recycled high-density polyethylene (HDPE) and virgin polyethylene powder, combined with a calcium carbonate filler, were used as the source materials for the membranes. The influence of the polymer-filler ratio with and without stretching on the morphology, tensile strength, and water flow rate was investigated. Optimal conditions were determined, emphasizing a balance between pore structure and mechanical integrity. The permeable membrane exhibited a water flow rate of 19 mL/min, a tensile strength of 32 MPa, and a water contact angle of 126°. These membranes effectively eliminated suspended particles from water, with their performance evaluated against that of commercially available membranes. This research, carried out utilizing the spin-casting technique, outlines a synthesis route for microfiltration membranes tailored to semi-crystalline polymers and their plastic forms.

摘要

通过挤出流延技术合成的半结晶聚合物微滤膜面临各种挑战，包括使用大量聚合物、较长的流延时间以及产生大量废料。本研究重点在于使用旋铸法合成这些膜，随后通过拉伸诱导形成孔隙。回收的高密度聚乙烯（HDPE）和原生聚乙烯粉末与碳酸钙填料相结合，用作膜的原料。研究了有无拉伸情况下聚合物与填料比例对形态、拉伸强度和水流量的影响。确定了最佳条件，强调孔隙结构与机械完整性之间的平衡。该渗透膜的水流量为19 mL/分钟，拉伸强度为32 MPa，水接触角为126°。这些膜有效地去除了水中的悬浮颗粒，并与市售膜的性能进行了对比评估。这项利用旋铸技术开展的研究概述了一种针对半结晶聚合物及其塑料形式定制的微滤膜合成路线。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/fc93dcc7dbd8/polymers-16-01799-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/fb8209d25e34/polymers-16-01799-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/e91176c79a3a/polymers-16-01799-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/1e0f764ab3ae/polymers-16-01799-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/32bd4542e596/polymers-16-01799-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/2f1a9a58c86a/polymers-16-01799-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/c75ae14953c9/polymers-16-01799-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/cf984e5485f6/polymers-16-01799-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/216371012df7/polymers-16-01799-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/9e32a9e0e634/polymers-16-01799-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/fc93dcc7dbd8/polymers-16-01799-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/fb8209d25e34/polymers-16-01799-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/dd14377c1ba8/polymers-16-01799-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/e91176c79a3a/polymers-16-01799-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/1e0f764ab3ae/polymers-16-01799-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/32bd4542e596/polymers-16-01799-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/2f1a9a58c86a/polymers-16-01799-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/c75ae14953c9/polymers-16-01799-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/cf984e5485f6/polymers-16-01799-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/216371012df7/polymers-16-01799-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/9e32a9e0e634/polymers-16-01799-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5205/11243820/fc93dcc7dbd8/polymers-16-01799-g011.jpg

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