Preparation of PVDF/CaCO3 composite hollow fiber membrane via a thermally induced phase separation method
Source abstract
Abstract
The spinnabiliy of polyvinylidene fluoride (PVDF)/CaCO3 microparticle dope solution were explored via a thermally induced phase separation process, and composite hollow fiber (CHF) membranes were prepared successfully. The experiment results showed that the self‐supporting property of CHF got improved after adding CaCO3 at low concentration of PVDF, so the control of spinning process became easy. The effects of CaCO3 on the structure and properties of hollow fiber membrane were investigated in terms of morphology, water flux, porosity, breakage strength, and crystallization. The results indicated that CHF presented a uniform bicontinuous structure. The permeability and porosity of CHF increased obviously when CaCO3 was removed by acid, while the breakage strength decreased slightly. CHF presented a good drying stability. POLYM. COMPOS., 34:1204–1210, 2013. © 2013 Society of Plastics Engineers
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Research context
OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Membrane Separation Technologies · Surface Modification and Superhydrophobicity
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Seawater Desalination and Multipurpose Utilization, SOA Tianjin 300192 China
State Key Laboratory of Hollow Fiber Membrane Materials and Processes, School of Materials Science and Engineering Tianjin Polytechnic University Tianjin 300387 China
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