Development and Electrochemical Characterization of Polyether Ether Ketone Composites Including Polyoxometal Tungstosilicic Acid for Water Electrolysis

2018 ◽  
Vol 39 (11) ◽  
pp. 1332-1335 ◽  
Author(s):  
Boyoung Kim ◽  
Yuri Song ◽  
Hyeon Seo ◽  
Yaeeun Lee ◽  
Jinsan Cha ◽  
...  
Keyword(s):  
Water Electrolysis ◽  
Electrochemical Characterization ◽  
Tungstosilicic Acid ◽  
Polyether Ether Ketone ◽  
Ether Ketone

scholarly journals Tribological Characterization of Polyether Ether Ketone (PEEK) Polymers Produced by Additive Manufacturing for Hydrodynamic Bearing Application

Lubricants ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 112
Author(s):  
Davide Massocchi ◽  
Giacomo Riboni ◽  
Nora Lecis ◽  
Steven Chatterton ◽  
Paolo Pennacchi
Keyword(s):  
Additive Manufacturing ◽  
Optical Microscope ◽  
Wear Volume ◽  
Coating Materials ◽  
Hydrodynamic Bearing ◽  
Polyether Ether Ketone ◽  
Strength Tests ◽  
Ether Ketone ◽  
Tribological Characterization

The coating materials commonly used in hydrodynamic bearings are the so-called “Babbitt metals” or “white metals”, as defined by ASTM B23-00. Their low Young’s modulus and yield point have encouraged researchers to find new coatings to overcome these limitations. In this paper, the friction and wear of PEEK are studied in a dry sliding environment (without lubrication) using a ball-on-disk tribometer and compared to those of Babbitt metal. Furthermore, the bond strength tests between PEEK and metals/alloys are evaluated. PEEK polymer samples were obtained from cylindrical rods, manufactured by an innovative process for polymer bonding on bearing surfaces, using additive manufacturing technology. The morphologies of the degraded surfaces were examined using a high-resolution metallurgical optical microscope (OM) and a scanning electron microscope (SEM). The coefficients of friction (CoF) were obtained under the alternating ball-on-disk dry tribometer. The results of the experimental activity show that PEEK polymers have CoFs of about 0.22 and 0.16 under the 1 and 5 N applied load, respectively. The CoF and wear volume loss results are reported and compared to the reference Babbitt coating.

Application of polysulfone (PSf)– and polyether ether ketone (PEEK)–tungstophosphoric acid (TPA) composite membranes for water electrolysis

2008 ◽  
Vol 322 (1) ◽  
pp. 154-161 ◽  
Author(s):  
In-Young Jang ◽  
Oh-Hwan Kweon ◽  
Kyoung-Eon Kim ◽  
Gab-Jin Hwang ◽  
Sang-Bong Moon ◽  
...  
Keyword(s):  
Water Electrolysis ◽  
Composite Membranes ◽  
Tungstophosphoric Acid ◽  
Polyether Ether Ketone ◽  
Ether Ketone

Sulphonated polyether ether ketone diaphragms used in commercial scale alkaline water electrolysis

2014 ◽  
Vol 247 ◽  
pp. 967-974 ◽  
Author(s):  
Jesus Otero ◽  
Javier Sese ◽  
Igor Michaus ◽  
Maria Santa Maria ◽  
Eugenio Guelbenzu ◽  
...  
Keyword(s):  
Water Electrolysis ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water ◽  
Polyether Ether Ketone ◽  
Commercial Scale ◽  
Ether Ketone
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