Rheological and crystallization behaviors of low processing temperature poly(aryl ether ketone)
نویسندگان
چکیده
A new low melting temperature poly(aryl ether ketone) (PAEK) thermoplastic polymer (Victrex AE 250) was investigated through thermal and rheological analysis of films flakes. DSC assigned to evaluate the influence cooling rate on crystallinity transitions. Rheometry used assess its flowing behavior evaluation dynamic moduli complex viscosity in melted state. The relaxation times were found from curves: they are between a few ms 200 for 250, lower than those PEEK 450, meaning faster mobility macromolecules. activation energy, Ea obtained Time Temperature Superposition is same flakes spite molecular weight entanglements evaluated at 8000 g.mol?1 FMc 13,000 FLc, it compared value about 2000 450 with procedure. Also, other commercial PAEK such as PEKK based data literature. This appears very efficient compete high performance thermoplastics be processed by compression molding, out autoclave consolidation, additive manufacturing, welding.
منابع مشابه
Expandable Polyaryl-Ether-Ether-Ketone Spacers for Interbody Distraction in the Lumbar Spine
Study Design Retrospective case series. Objective StaXx XD (Spine Wave, Inc., Shelton, CT, United States) is an expandable polyaryl-ether-ether-ketone (PEEK) wafer implant utilized in the treatment of lumbar degenerative disease. PEEK implants have been successfully used as interbody devices. Few studies have focused on expandable PEEK devices. The aim of the current study is to determine the r...
متن کاملA Novel Polyaryl Ether Based Photorefractive Composite
We report the synthesis of a novel charge-transporting polymer based on the chargetransport unit N,N′-diphenyl-N,N′-bis(3-methylphenyl)-[1,1′-biphenyl]-4,4′-diamine (TPD). Introducing approximately 30 wt % of the liquid electro-optic molecule 4-(N,N-diethylamino)2-fluoro-(Z)-â-methyl-(E)-â-nitrostyrene (FDEAMNST) and small amounts of C60 makes this polymer photorefractive. A full photorefractiv...
متن کاملComparison of osteogenic potential of poly-ether-ether-ketone with titanium-coated poly-ether-ether-ketone and titanium-blended poly-ether-ether-ketone: An in vitro study
STATEMENT OF PROBLEM Poly-ether-ether-ketone (PEEK), a high-performance semi-crystalline thermoplastic polymer, has been employed to replace the metallic implant components in orthopedics. There were various studies performed in accordance to medical grade PEEK, but the relationship between titanium dioxide (TiO2)-coated PEEK, TiO2-blended PEEK, and untreated PEEK still remains complicated, eve...
متن کاملPreparation and Physical Characterization of Sulfonated Poly (Ether Ether Ketone) and Polypyrrole Composite Membrane
Sulfoanted poly(ether ether ketone) membranes were prepared by the sulfonating agent sulfuric acid. These membranes were modifed by incorporating conducting polymer polypyrrole in order to increase the ionic conductivity and reduce the methanol transmission rate. The modifed composite membranes were then compared on the basis of ionic conductivity, methanol transmission...
متن کاملComparison of Properties among Dendritic and Hyperbranched Poly(ether ether ketone)s and Linear Poly(ether ketone)s.
Poly(ether ether ketone) dendrimers and hyperbranched polymers were prepared from 3,5-dimethoxy-4'-(4-fluorobenzoyl)diphenyl ether and 3,5-dihydroxy-4'-(4-fluorobenzoyl)diphenyl ether through aromatic nucleophilic substitution reactions. 1-(tert-Butyldimethylsiloxy)-3,5-bis(4-fluorobenzoyl)benzene was polycondensed with bisphenols, followed by cleavage of the protective group to form linear pol...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Applied Polymer Science
سال: 2021
ISSN: ['1097-4628', '0021-8995']
DOI: https://doi.org/10.1002/app.51402