Mechanical and thermal properties of poly-ether ether ketone reinforced with CaCO3

Polyetheretherketone (PEEK) Composites Reinforced with Fly Ash and Mica

“…The reinforcing effect of mica was more intense above T g . This was similar to a previous study of AlN/PEEK [16] and reported VGCF/PEEK composites, for which the modulus increased with the filler content. However, this was in contrast to a short-carbon-fiber-reinforced/poly(ether ether ketone) (SCFR-PEEK) composite, for which an intense increase in the modulus was observed below Tg, and afterwards, it decreased rapidly as in pure PEEK [17].…”

“…However, with increase in mica content, the size of voids formed when the polymer matrix detaches from the filler particles became critically large and initiates the main crack [9]. In addition, the inevitably increased agglomeration of dispersed filler particles resulted in decreased mechanical strength due to the lower strength of the agglomerates themselves [10]. Tensile modulus of Polyetheretherketone filled composites increased rapidly with the content of filler as shown in Fig 2.The tensile modulus increases with incorporation of filler in the polymer matrix.…”

Novel high performance Al2O3/poly(ether ether ketone) nanocomposites for electronics applications

“…A similar enhancement of crystallization was reported for AlN/PEEK [2], CaCO 3 /PP [13], SiO 2 /PP [26,28,29], clay/PVDF [27], SiO 2 /PET [30,31], clay/PET [32], and nanocomposites. However, our results are in contrast to the recent study of CaCO 3 /PEEK [5] and Al 2 O 3 / PEEK [15] nanocomposites, where decrease in T c was found with the increase of fillers in PEEK matrix. This difference may be attributed to the shape, size, loading, dispersion level, adhesion, and surface morphology of the filler.…”

“…Pingping et al have not found significant change in the T m of CaCO 3 /PET composites [25]. However, the decrease in T m about 5-6°C of CaCO 3 / PEEK composites was observed, irrespective of filler's surface treatment [5]. It is well known that the melting point of the polymer crystals is a function of lamellar thickness and degree of crystal perfection [26].…”

“…Recently, its properties have been further improved by incorporating micron size particles such as aluminum nitride (AlN) [2,3], aluminum oxide (Al 2 O 3 ) [4], CaCO 3 [5], and hydroxiapatite (HA) [6] fillers. In the last one decade, polymer based nanocomposites containing nanofillers have been intensively investigated due to filler's much higher surface area to volume ratio, which results in much higher interface between the nanofillers and the polymer matrix as compared to conventionally used micron size fillers and polymer matrix.…”