نتایج جستجو برای: polyamide composite

تعداد نتایج: 124362  

2017
Yutaka Ohsedo Masashi Oono Kowichiro Saruhashi Hisayuki Watanabe Nobuyoshi Miyamoto

A composite gel composed of a water-soluble aromatic polyamide hydrogelator and the nanosheet Laponite®, a synthetic layered silicate, was produced and found to exhibit thixotropic behaviour. Whereas the composite gel contains the gelator at the same concentration as the molecular gel made by the gelator only, the composite gel becomes a softer thixotropic gel compared to the molecular gel made...

2014
Mohamed Nassar Maher Z. Elsabee

Hydrized derivatives of phenylene diamine were reacted with aromatic diacid chloride to give wholly aromatic polyamide/hydrazide compounds with much better solubility in organic solvents thus improving their pressesability. Carbon nano-tubes were used as fillers to enhance their thermal and mechanical properties. The polymers as well as the composite were characterized by spectral and mechanica...

Journal: :journal of nanostructures 2014
a. akbari a. yunessnia lehi z. ghaedamini haruni

several novel composite membranes were prepared to separate and recycle amoxicillin from pharmaceutical wastewater via nanofiltration process. the synthesis of these membranes included three stages: 1- preparation of polysulfone ultrafiltration membranes as a support via phase separation process, 2- modification of its surface by interfacial polymerization as a selective layer (polyamide), and ...

2012
Qingqing Wang Xianjun Dong Zengyuan Pang Yuanzhi Du Xin Xia Qufu Wei Fenglin Huang

Titanium dioxide-polyaniline/polyamide 6 (TiO(2)-PANI/PA6) composite nanofibers were prepared by in situ polymerization of aniline in the presence of PA6 nanofibers and a sputtering-deposition process with a high purity titanium sputtering target. TiO(2)-PANI/PA6 composite nanofibers and PANI/PA6 composite nanofibers were fabricated for ammonia gas sensing. The ammonia sensing behaviors of the ...

2001
A. Cañas M. J. Ariza J. Benavente

Electrokinetic, structural and surface chemical characterizations of both active and porous sublayers of a composite (polyamide/polysulfone) reverse osmosis membrane were carried out by different techniques: (i) electrochemical impedance spectroscopy (EIS) allows both electrical and geometrical characterizations using equivalent circuits as models; (ii) surface chemical composition of the activ...

2011
A. K. Ghosh R. C. Bindal S. Prabhakar P. K. Tewari

Thin Film Composite – Polyamide (TFC-PA) are commonly used reverse osmosis (RO) membranes in water desalination and waste water applications. Their poor chlorine tolerance and fouling characteristics constrain the life and performance leading to stringent chemical pretreatment requirements. In this context, development of fouling resistant and chlorine tolerant RO membranes would be relevant to...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2005
Karl E Hauschild Renee E Metzler Hans-Dieter Arndt Rocco Moretti Marni Raffaelle Peter B Dervan Aseem Z Ansari

Programmable DNA-binding polyamides coupled to short peptides have led to the creation of synthetic artificial transcription factors. A hairpin polyamide-YPWM tetrapeptide conjugate facilitates the binding of a natural transcription factor Exd to an adjacent DNA site. Such small molecules function as protein-DNA dimerizers that stabilize complexes at composite DNA binding sites. Here we investi...

2017
Jean-Fabien Capsal Eric Dantras Jany Dandurand Colette Lacabanne

Barium titanate ceramic powders have been incorporated in polyamide 11 to form homogeneous dispersion of particles in the matrix. Barium titanate/polyamide 11 nanocomposites have been synthesized using a solvent casting method with ultrasonic stirring to homogeneously disperse inclusions in the matrix. Composites with volume fraction of barium titanate / ranging from 0.01 to 0.4 were elaborated...

Journal: :Journal of Physics: Conference Series 2009

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