Abstract

Abstract In this article, the interweave polymer structure of the polyvinylidene fluoride/poly (p–phenylene terephtalamide) (PVDF/PPTA) was prepared and the mass ratio of m (PVDF)/m (PPTA) was 2:1. The blend membrane was obtained by phase inversion method. The effects of the preparation parameters were systematically investigated, such as the component of coagulation bath, addictive content, and the concentration of polymer on the performance of PVDF/PPTA blend membrane. The structure and properties of the blend membranes were examined using scanning electron microscope; fourier transform infrared spectroscopy; and contact angle meter. The permeation performance was characterized by measuring pure water flux and the retention of bovine serum albumin and poly (ethylene glycol) of different molecular weight. Meanwhile, porosity, average pore size, and fouling resistance performance were also estimated. The experiment results confirmed that PVDF/PPTA blend membrane displays enhanced hydrophilicity and foulin...

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