Preparation and characterization of novel porous PVDF-ZrO2 composite membranes

Coincidence Doppler broadening spectroscopy in polyvinyl chloride after doping with Al2O3

“…The Ps forms either in the socalled para (antiparallel electron and positron spins: p-Ps) or ortho (parallel electron and positron spins: o-Ps) positronium states. [5][6][7][8] Positron annihilation is an experimental method by which one can obtain the microstructure, momentum of electrons, and defect behavior of condensed matter. Because the positron is sensitive to defects, vacancy, surface and interface, it has been turned into the best probe for defect research.…”

Effect of addition of two-dimensional ZIF-L nanoflakes on the properties of polyethersulfone ultrafiltration membrane

“…Modifiers are often added to tailor the membrane properties, and small amounts of modifiers can significantly change the membrane performance [1]. To date, a range of materials with different properties and morphologies have been studied for their effects on phase inversion process, they include polymer additives and inorganic particles as summarized in Table 1 [2,6,[8][9][10][11][12][13][14][15][16][17][18][19][20]. For instance, nanoparticles, zero-dimensional materials, were favoured over micron-sized particles to improve polymer-filler compatibility [21].…”

Hydrophilicity and crystallization behavior of PVDF/PMMA/TiO2(SiO2) composites prepared by in situ polymerization

“…This surface enrichment led to strong protein resistance on the surface of the PVDF membrane. The hydrophilic inorganic materials that are utilized to modify PVDF are mainly nanoparticles such as TiO 2 [1,16], SiO 2 [17], Al 2 O 3 [18], and ZrO 2 [19]. It is well known that adding inorganic materials to a polymer matrix can lead to the creation of high-performance organic/inorganic composites [20].…”