WebSKZ – Das Kunststoff-Zentrum’s Post SKZ – Das Kunststoff-Zentrum 7,313 followers 38m WebApr 19, 2024 · Inspired by the hydrophilicity effect of arginine (Arg) in water channel aquaporins (AQPs), Arg was incorporated into the polyamide layer during interfacial polymerization to enhance the permeation and antifouling performance of the nanofiltration (NF) membranes. Due to the presence of active amine …
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WebOct 2, 2008 · The permeation resistance of various grades of perfluoroalkoxy (PFA)/polytetrafluoroethylene (PTFE) copolymers was tested. Specimens were compression molded using two different cooling techniques: a faster one (ice water quench) and a slower one (press cooled). Permeability, diffusion, and solubility coefficients were measured for … WebAug 1, 2024 · Permeation measurements were performed at different temperatures on a high density polyethylene with pure or mixed gases (methane, carbon dioxide, hydrogen). fess toimenpide
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Webpermeation and leakage of hydrogen through the candidate materials is vital to effective materials system selection or design and development of safe and efficient materials for … WebAs automakers continue to refine cutting-edge hydrogen vehicle technology, designing safe and durable hydrogen fuel tanks is essential. High-density polyethylene (HDPE) is used for numerous tank manufacturing applications, but is susceptible to blistering and requires higher wall thickness compared to polyamides (PA) to meet permeation standards. WebDec 13, 2024 · Furthermore, the operating conditions are found to affect the separation performance of the PIP-TMC membrane significantly. In particular, the elevating operation temperature profoundly increases the permeation flux, while the increase in high salt concentration leads to a slight decrease in rejection but a significant decline in … dell poweredge 4210 rack