scholarly journals Studies in Silicone-Polyether Ketone Blend Based High Performance Coating

2016 ◽  
Vol 2 (1) ◽  
pp. 19-24
Author(s):  
Raviprakash Haribhau Dongre ◽  
P. A. Mahanwar
Keyword(s):  
Thermal Stability ◽  
High Performance ◽  
Detergent Solution ◽  
Coating Films ◽  
Humidity Resistance ◽  
High Performance Polymer ◽  
Ether Ketone ◽  
And Performance ◽  
High Performance Coating ◽  
Tga Analysis

Silicone polymer although have some exceptional superior properties have limitations when it is exposed to harsh chemicals. Poly Ether Ketone (PEK), a high performance polymer is well known for its resistance towards acid, alkali and many solvents. PEK exhibits good environmental protection with better thermal stability.  In the present study, the coatings were prepared using varying ratios of silicone and Poly Ether Ketone (PEK) to study the effect of concentration of PEK on mechanical, chemical, thermal and performance properties. The clear coatings of Silicone/PEK cured films were characterized for TGA, FTIR and evaluated for thermal resistance, corrosion resistance, resistance to 10% acid, alkali, sodium chloride, detergent solution and humidity resistance. The coating films were found to be stable up to 450 °C as indicated by TGA analysis. It is seen that the performance of silicone / PEK coating films increases with increasing concentration of PEK.

Effect of different filler reinforcement on poly-ether-ether-ketone based nanocomposites for bearing applications

2020 ◽  
Vol 54 (29) ◽  
pp. 4709-4722
Author(s):  
Jennifer Vinodhini ◽  
Mohan Kumar Pitchan ◽  
Shantanu Bhowmik ◽  
Gion Andrea Barandun ◽  
Pierre Jousset
Keyword(s):  
High Performance ◽  
Morphological Properties ◽  
Multiwalled Carbon ◽  
Melt Compounding ◽  
Transmission Electron ◽  
High Performance Polymer ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Filler Reinforcement ◽  
Ether Ketone

This study investigates the effect of dispersion of nanofiller reinforcement high performance polymer matrix to enhance the thermo-mechanical properties for bearing application. Polyetheretherketone (PEEK) matrix is reinforced with acid fucntionalized multiwalled carbon nanotubes ( f-MWCNTs) and similar matrix was then reinforced with nano tungsten carbide (nano WC) to comparatively present their mechanical, thermal and morphological properties. The Nanocomposites were prepared via melt compounding method followed by injection moulding technique. The PEEK/ f-MWCNT s nanocomposite exhibited better property enhancement than the PEEK/nano WC. Spectroscopical analysis confirmed the effectiveness of improved interfacial adhesion between PEEK and f-MWCNTs. Transmission Electron Microscope (TEM) micrograph depicted improved dispersion of f-MWCNTs in PEEK matrix than that of nano WC. Due to improved interfacial interaction between f-MWCNT s and PEEK, this resulting nanocomposite showed better mechanical, thermal and morphological properties than PEEK/nano WC. Due to ceramic nature of nano WC and higher density difference the agglomeration of particles occurred leading to lower properties.

scholarly journals Esthetic rehabilitation with modified PEEK using analogue-digital protocol

2021 ◽  
Vol 7 (2) ◽  
pp. 109-113
Author(s):  
Vijaya Kumar R ◽  
Rahul Bahri ◽  
Parag Dua ◽  
Avina Banari
Keyword(s):  
High Performance ◽  
Biological Tissues ◽  
Missing Teeth ◽  
Long Span ◽  
Anterior Teeth ◽  
Polyether Ether Ketone ◽  
High Performance Polymer ◽  
Literature Evidence ◽  
Cad Cam ◽  
Ether Ketone

With the advancing digital technology and introduction of newer biocompatible materials with properties similar to biological tissues, CAD CAM fabricated restorations are gaining wide popularity. Introduction of Zirconia and BioHPP (High Performance Polymer) Polyether-ether-ketone (PEEK) has widened the horizons of clinical prosthodontics. Its use has been successfully demonstrated in implantology for fabrication of frameworks and as substructures for replacement of missing teeth. Literature evidence and clinical reports highlighting their usage for long span FDPs is however scanty. This article aims to highlight a combination of digital-analogue procedure for successful rehabilitation of mutilated and missing anterior teeth in a young adult using virtual articulator, modified Bio-HPP PEEK restorations and manufacturer recommended Visio.lign system.

Interlayer Bonding Strength of 3D Printed PEEK Specimens

Soft Matter ◽  
2021 ◽  
Author(s):  
Chya-Yan Liaw ◽  
John W Tolbert ◽  
Lesley W Chow ◽  
Murat Guvendiren
Keyword(s):  
3D Printing ◽  
High Performance ◽  
Important Group ◽  
High Performance Polymers ◽  
High Performance Polymer ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
3D Printed ◽  
Ether Ketone ◽  
Interlayer Bonding

Recent advances in extrusion-based filament 3D printing technology enable the processability of high-performance polymers. Poly(ether ether ketone) (PEEK) is an important group of high-performance polymer that has been widely used...

Trace nanoanalysis

1994 ◽  
Vol 52 ◽  
pp. 940-941
Author(s):  
D. E. Newbury ◽  
R. D. Leapman
Keyword(s):  
High Performance ◽  
Secondary Ion Mass Spectrometry ◽  
Detection Efficiency ◽  
Volume Element ◽  
And Performance ◽  
Trace Constituents ◽  
Secondary Ion ◽  
Concentration Levels ◽  
Structure Properties

Trace constituents, which can be very loosely defined as those present at concentration levels below 1 percent, often exert influence on structure, properties, and performance far greater than what might be estimated from their proportion alone. Defining the role of trace constituents in the microstructure, or indeed even determining their location, makes great demands on the available array of microanalytical tools. These demands become increasingly more challenging as the dimensions of the volume element to be probed become smaller. For example, a cubic volume element of silicon with an edge dimension of 1 micrometer contains approximately 5×1010 atoms. High performance secondary ion mass spectrometry (SIMS) can be used to measure trace constituents to levels of hundreds of parts per billion from such a volume element (e. g., detection of at least 100 atoms to give 10% reproducibility with an overall detection efficiency of 1%, considering ionization, transmission, and counting).

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