نتایج جستجو برای: sulfonated polyether ether ketone

تعداد نتایج: 31797  

Journal: :IOP conference series 2022

Abstract Dental implant can be defined as the process of inserting an artificial tooth in place natural tooth. This consists a) abutment b) Custom made crown and (c) Implant. implants are two major types Endosteal Subperiosteal Implant, endosteal is more widely used nowadays very rare. Apart from types, it also has variety materials usage. The titanium zirconia. Both zirconium have lots disadva...

Journal: :Coatings 2022

In the present study, friction and wear behaviors of Si3N4-hBN(Hexagonal boron nitride) ceramic composites against polyether-etherketone in artificial seawater were investigated, sliding speed was varied from 0.52 to 1.73 m/s study effect. It found that coefficients rates decreased with increase for Si3N4-hBN (with hBN content ranging 5% 20%) PEEK(Polyether-ether-ketone); pairs represented an u...

2017
Iole Venditti Laura Fontana Francesca A. Scaramuzzo Maria Vittoria Russo Chiara Battocchio Laura Carlini Laurent Gonon Vincent H. Mareau Ilaria Fratoddi

Gold nanoparticles, capped by 3-mercapto propane sulfonate (Au-3MPS), were synthesized inside a swollen sulfonated poly(ether ether ketone) membrane (sPEEK). The formation of the Au-3MPS nanoparticles in the swollen sPEEK membrane was observed by spectroscopic and microscopic techniques. The nanocomposite containing the gold nanoparticles grown in the sPEEK membrane, showed the plasmon resonanc...

Journal: :The journal of physical chemistry. B 2009
M Luisa Di Vona Emanuela Sgreccia Silvia Licoccia Giulio Alberti Laurence Tortet Philippe Knauth

Sulfonated poly(ether ether ketone) (SPEEK) membranes were thermally treated at temperatures between 120 and 160 degrees C. Water uptake measured at different relative humidity values or by full immersion in water between 25 and 145 degrees C was found to depend very strongly on previous thermal treatment and casting solvent. Water-uptake coefficient values as low as 10-15 even upon immersion i...

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