نتایج جستجو برای: sulfonated poly ether ether ketone

تعداد نتایج: 108838  

Journal: :Composites Part A-applied Science and Manufacturing 2021

The effects of poly(ether ether ketone) (PEEK) degradation on consolidation commingled preforms have been investigated. Contrary to what could be expected, under the same processing conditions, systematically results in a high porosity content, above 10%. Fourier Transform Infrared spectrophotometry (FTIR) and Gel Permeation Chromatography (GPC) shown small molecular structure modifications PEE...

Journal: :Physical chemistry chemical physics : PCCP 2014
Zhizhang Yuan Xianfeng Li Jinbo Hu Wanxing Xu Jingyu Cao Huamin Zhang

The degradation mechanism of hydrocarbon ion exchange membranes under vanadium flow battery (VFB) medium was investigated and clarified for the first time. This work will be highly beneficial for improving the chemical stability of hydrocarbon ion exchange membranes, which is one of the most challenging issues for VFB application.

Poly(ether ether ketone) with cardo group-based (PEEK-WC) membranes, in hollow fber (HF) confguration, were prepared via the dry-wet spinning technique through the phase inversion process and used to clarify kiwifruit juice. The depectinised juice was processed according to a batch concentration confguration in selected operating conditions (transmembrane pressure, 1.6 ...

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