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Information Journal Paper

Title

PREPARATION AND PROPERTIES OF UHMWPE/SIO2 HYBRID HOLLOW FIBRE MEMBRANES VIA THERMALLY INDUCED PHASE SEPARATION-STRETCHING METHOD

Pages

  479-489

Keywords

ULTRAHIGH MOLECULAR WEIGHT POLYETHYLENE (UHMWPE) 
SIO2 
THERMALLY INDUCED PHAS SEPARATION-STRETCHING (TIPS-S) 

Abstract

 Ultrahigh molecular weight polyethylene (UHMWPE)/SiO2 hybrid hollow fibre membranes were prepared by thermally induced phase separation-stretching (TIPS-S), using mineral oil as diluent and SiO2 as additive. In this study, UHMWPE/ SiO2 blends were incompatible. Therefore, an interfacial microvoid was produced in the interface between UHMWPE and SiO2 after stretching along fibre axis. Secondly, the stretching pore also appeared due to stretch. Moreover, UHMWPE/mineral oil was blended into a homogeneous phase at sufficiently high temperature and underwent phase separation when it was cooled. The TIPS pore was prepared by extracting mineral oil. Thereby, after stretching, multi-pore-structure (MPS) including interfacial microvoid, stretching pores, and pore by TIPS was built. The influential factors, inluding heat-treatment, draw ratio and drawing temperature were investigated. The results of this study indicated that the draw ratio had an optimum value in order to obtain the UHMWPE/SiO2 hybrid hollow fibre membranes with good permeability. The permeability of membrane showed the best performance at the 5 folds draw ratio. The effects of heat-treatment and drawing temperature on pore structure have been mainly produced from the pores contraction and defect formation. Both the pore size and the pore number of HC5 were the highest, those of C5 took second place and those of HH5 were the lowest. HC5 showed the highest pure water flux compared to HH5 and C5. The mechanical properties of membranes were the result of a set of factors including crystallinity, degree of orientation, and defects in the membrane structure.

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    APA: Copy

    LI, N., & XIAO, CH.. (2009). PREPARATION AND PROPERTIES OF UHMWPE/SIO2 HYBRID HOLLOW FIBRE MEMBRANES VIA THERMALLY INDUCED PHASE SEPARATION-STRETCHING METHOD. IRANIAN POLYMER JOURNAL (ENGLISH), 18(6 (108)), 479-489. SID. https://sid.ir/paper/550708/en

    Vancouver: Copy

    LI N., XIAO CH.. PREPARATION AND PROPERTIES OF UHMWPE/SIO2 HYBRID HOLLOW FIBRE MEMBRANES VIA THERMALLY INDUCED PHASE SEPARATION-STRETCHING METHOD. IRANIAN POLYMER JOURNAL (ENGLISH)[Internet]. 2009;18(6 (108)):479-489. Available from: https://sid.ir/paper/550708/en

    IEEE: Copy

    N. LI, and CH. XIAO, “PREPARATION AND PROPERTIES OF UHMWPE/SIO2 HYBRID HOLLOW FIBRE MEMBRANES VIA THERMALLY INDUCED PHASE SEPARATION-STRETCHING METHOD,” IRANIAN POLYMER JOURNAL (ENGLISH), vol. 18, no. 6 (108), pp. 479–489, 2009, [Online]. Available: https://sid.ir/paper/550708/en

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