Effect of Modified NanoSiO₂ Agents on the Morphologies and Performances of UHMWPE Microporous Membrane via Thermally Induced Phase Separation

Abstract:

The effects of Modified NanoSiO₂ Agents on the morphology and performance of ultra-high-molecular weight polyethylene (UHMWPE) microporous membranes via thermally induced phase separation were investigated in this work. The NanoSiO₂ was surface modified by silane coupling agent KH570 (KH570-NanoSiO₂). Differential scanning calorimetry (DSC) and X-Ray Diffraction (XRD) were performed to obtain crystallization of UHMWPE/white oil/ KH570-NanoSiO₂ doped system. The morphology and performance of the prepared UHMWPE microporous membranes were characterized with scanning electron microscopy (SEM) and microfiltration experiments. The results showed that the morphology of UHMWPE membrane could be disturbed by KH570-NanoSiO₂. Porosity and the rejection of Bovine serum albumin (BSA) of the blend membrane increased with increasing concentration of Modified NanoSiO₂, while the water flux slightly decreased.

• Periodical: Materials Science Forum (Volume 848)
• Pages: 726-732
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.848.726
• Online since: March 2016
• Authors: Rong Liu, Yan Wang, Jing Zhu, Zu Ming Hu, Jun Rong Yu
• Keywords: Crystallization, Membrane, Morphology, UHMWPE

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