نتایج جستجو برای: microporous membrane

تعداد نتایج: 391845  

Journal: :International Journal of Heat and Mass Transfer 2022

Microporous layers (MPLs) play a crucial role in improving water management proton exchange membrane fuel cells (PEMFCs). Highly tunable electrospun carbon fibers offer promising candidate for MPLs to facilitate two-phase and gas transport PEMFCs. In this work, we present PEMFC model investigate the mass characteristics with made of nano-/micro-fibers. Simulations were validated by reported exp...

Journal: :Applied and environmental microbiology 1991
F W Hyde G R Hunt L A Errede

A novel method for immobilization of bacteria and Saccharomyces cerevisiae cells is described. Microorganisms may be entrapped in a matrix of poly(tetrafluoroethylene) (PTFE) fibrils. Cells are blended with an aqueous emulsion of PTFE stabilized with Triton X-100 surfactant to form a thick paste. The paste is calendered biaxially in a standard rubber mill. This process causes fibrillation of th...

The gas-liquid membrane contactor (GLMC) is a promising alternative gas absorption/desorption configuration for effective carbon dioxide (CO2 ) capture. The physicochemical properties of membranes may synergistically affect GLMC performances, especially during the long-term operations. In this work, commercial polypropylene (PP) and polyvinylidene fluoride (PVDF) hollow fiber (HF) membranes wer...

2013
Maxime Paven Periklis Papadopoulos Susanne Schöttler Xu Deng Volker Mailänder Doris Vollmer Hans-Jürgen Butt

In a gas membrane, gas is transferred between a liquid and a gas through a microporous membrane. The main challenge is to achieve a high gas transfer while preventing wetting and clogging. With respect to the oxygenation of blood, haemocompatibility is also required. Here we coat macroporous meshes with a superamphiphobic-or liquid repellent-layer to meet this challenge. The superamphiphobic la...

Journal: :Materials Chemistry and Physics 2021

Microporous polypropylene (PP) nanocomposite membranes suitable for various applications such as energy storage, water purification, membrane separation, etc., were prepared by melt mixing of and natural rubber (NR) subsequently followed etching phase. Nanoparticles having spherical shape (Al2O3), irregular (TiO2), 2D platelet morphology (Cloisite 30 B (C–30 B)), used to the influence nanoparti...

2017
Quan-Ming Zhao Guang-Zhong Li Hao-Ming Zhu Li Cheng

Metal surface structure/biomedical function integration is the current research focus. In previous studies, we have successfully prepared the microporous coatings containing zinc on the pure titanium surface by MAO. In the study, osteoblasts were seeded on the surface of the microporous coatings containing zinc and the adhesion of osteoblasts were evaluated, and the antibacterial activity of th...

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