DICP OpenIR
Sintering process investigation during polytetrafluoroethylene hollow fibre membrane fabrication by extrusion method
Jia, Jingxuan1,2; Kang, Guodong1; Zou, Tong1,2; Li, Meng1; Zhou, Meiqing1; Cao, Yiming1
KeywordPtfe Extrusion Fabrication Hollow Fibre Membrane Sintering Membrane Properties
Source PublicationHIGH PERFORMANCE POLYMERS
2017-11-01
DOI10.1177/0954008316669409
Volume29Issue:9Pages:1069-1082
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectPolymer Science
WOS Research AreaPolymer Science
WOS KeywordPTFE POROUS MEMBRANE ; MOLECULAR-WEIGHT ; CRYSTALLINE-STRUCTURE ; POLY(TETRAFLUOROETHYLENE) ; MELT ; POWDER ; PASTE ; DISTILLATION ; TEMPERATURE ; MECHANISM
AbstractIn this study, the effect of sintering conditions including manner, temperature and duration on properties of polytetrafluoroethylene (PTFE) hollow fibre membrane fabricated by extrusion method was intensively investigated. Different from un-sintered and relaxed sintered, the fixed sintered PTFE hollow fibre membrane was observed to generate a uniform fibril-node' porous structure and a main crystal transformation to folded chain crystal with smaller size. Consequently, it was found that for fixed setting sintering, both temperature increase from 340 degrees C to 400 degrees C and duration prolongation obviously improved pore size, ethanol permeation performance and mechanical strength. Additionally, the test results revealed that the membrane sintered below virgin melting point (350 degrees C) had a noticeable higher porosity but poorer ethanol permeation performance that could be primarily attributed to increased ratio of closed pore. The sintering condition exhibited evident influence on PTFE hollow fibre membrane thermal stability, though it showed no alteration to the thermal decomposition of PTFE. The obtained PTFE hollow fibre membrane was tested to evaluate their vacuum membrane distillation (VMD) performances. It was found that PTFE membrane from lower sintering temperature delivered a better salt rejection; on the other hand, the permeate flux was improved by increased vacuum pressure during VMD operation.
Language英语
WOS IDWOS:000414466300008
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/149754
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Jia, Jingxuan,Kang, Guodong,Zou, Tong,et al. Sintering process investigation during polytetrafluoroethylene hollow fibre membrane fabrication by extrusion method[J]. HIGH PERFORMANCE POLYMERS,2017,29(9):1069-1082.
APA Jia, Jingxuan,Kang, Guodong,Zou, Tong,Li, Meng,Zhou, Meiqing,&Cao, Yiming.(2017).Sintering process investigation during polytetrafluoroethylene hollow fibre membrane fabrication by extrusion method.HIGH PERFORMANCE POLYMERS,29(9),1069-1082.
MLA Jia, Jingxuan,et al."Sintering process investigation during polytetrafluoroethylene hollow fibre membrane fabrication by extrusion method".HIGH PERFORMANCE POLYMERS 29.9(2017):1069-1082.
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