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Effect of spin-draw rate and stretching ratio on polypropylene hollow fiber membrane made by melt-spinning and stretching method / F.-J. Wei in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIII, N° 1 (03/2018)

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inINTERNATIONAL POLYMER PROCESSING > Vol. XXXIII, N° 1 (03/2018) . - p. 13-19

Titre :	Effect of spin-draw rate and stretching ratio on polypropylene hollow fiber membrane made by melt-spinning and stretching method
Type de document :	texte imprimé
Auteurs :	F.-J. Wei, Auteur ; H.-J. Shao, Auteur ; Bin Wu ; K.-Z. Zhang ; D.-J. Luo ; S.-H. Qin ; Z. Hao ; H.-J. Shao
Année de publication :	2018
Article en page(s) :	p. 13-19
Note générale :	Bibliogr.
Langues :	Anglais (eng)
Catégories :	Analyse thermique Diffusion aux petits angles Extrusion filage Fibres creuses Membranes (technologie) Microscopie électronique à balayage Perméabilité Polypropylène Porosité Procédés de fabrication
Index. décimale :	668.4 Plastiques, vinyles
Résumé :	A series of polypropylene hollow fiber membranes was fabricated by melt-spinning and stretching. The crystalline behavior and hard elasticity of precursor hollow fibers were studied by differential scanning calorimetry (DSC), elastic recovery and strain-stress curves. The structure and properties of membranes were investigated in detail by scanning electron microscopy (SEM), optical microscopy, pure water flux, and so on. The results showed that membranes with excellent structure and properties can be obtained at a spin-draw rate of 350 m/min and a stretching ratio of 200 %. The evolution of crystal structure was explored during the annealing and stretching processes by two-dimensional small-angle X-ray scattering (2D-SAXS). Shish-kebab structure was obtained during annealing for hollow fibers at a spin-draw rate of 350 m/min. The crystalline lamellae were destroyed and micropores were formed during the fabrication of membranes by stretching.
Note de contenu :	- MATERIALS : Materials - Samples Preparation - Differential scanning calorimetry - Hard elasticity - Scanning electron microscopy - Optical microscopy - Mean pore size porosity - Pure water permeability - Two-dimensional small-angle x-ray scattering - RESULTS AND DISCUSSION : Effect of spin-draw rate on properties of polypropylene hollow fiber and membrane - Effect of stretching ratio on structure and properties of membranes - SAXS analysis
DOI :	10.3139/217.3303
En ligne :	https://drive.google.com/file/d/1abCYpLJTnLTRmCTM2mbZVQWFMnlpBStS/view?usp=drive [...]
Format de la ressource électronique :	Pdf
Permalink :	https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30154

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