Mechanical Properties of Poly(ether ether ketone) Composites Reinforced by Carbon Nano-Platelet Chains and Nanoalumina

2011 ◽  
Vol 24 (6) ◽  
pp. 755-766 ◽  
Author(s):  
S. Joseph ◽  
V.A. Bambole ◽  
P.A. Mahanwar
Keyword(s):  
Mechanical Properties ◽  
Filler Content ◽  
Dielectric Strength ◽  
Filler Loading ◽  
Twin Screw Extrusion ◽  
Ether Ether Ketone ◽  
Screw Extrusion ◽  
Poly Ether Ether Ketone ◽  
Twin Screw ◽  
Thermal Stability Of

Carbon nanoplatelet and nanoalumina reinforced PEEK nanocomposites were fabricated by twin-screw extrusion followed by injection molding. The effect of the filler loading on mechanical properties, morphology, dielectric strength, and thermal stability of the composites has been analyzed. The mechanical properties were found to increase with nanoplatelet content up to 1% loading (optimum filler content) and after that, due to agglomeration of filler, slight decrease in properties were observed. For alumina-filled systems mechanical properties increased with increasing filler content due to the well-dispersed fillers in the composites. The modulus and toughness of alumina-filled composites were higher than platelet-filled composites.

The effect of twin screw extrusion on structural, electrical, and rheological properties in carbon nanotube poly-ether-ether-ketone nanocomposites

2013 ◽  
Vol 129 (5) ◽  
pp. 2527-2535 ◽  
Author(s):  
Matthieu Guehenec ◽  
Victoria Tishkova ◽  
Sylvie Dagreou ◽  
Frederic Leonardi ◽  
Christophe Derail ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Rheological Properties ◽  
Twin Screw Extrusion ◽  
Ether Ether Ketone ◽  
Screw Extrusion ◽  
Poly Ether Ether Ketone ◽  
Twin Screw ◽  
Ether Ketone

Effect of Compatibilizers on Composite Materials of Bio-Ethanol Byproduct-Poly(lacticacid)

2012 ◽  
Vol 204-208 ◽  
pp. 4088-4092
Author(s):  
Ming Ming Zhang ◽  
Xiao Huan Liu ◽  
Chun Peng Wang ◽  
Li Wei Jin
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Composite Materials ◽  
Extrusion Process ◽  
Poly Lactic Acid ◽  
Twin Screw Extrusion ◽  
Screw Extrusion ◽  
Twin Screw ◽  
Process Effects ◽  
Properties Of Composites

The blend composite materials of bio-ethanol byproduct-Poly(lactic acid) (PLA) were produced by a twin-screw extrusion process. Effects of bio-ethanol byproduct (BEB) contents and different compatibilizers on properties of composite materials were investigated. The research showed that with the increase of contents of bio-ethanol byproduct, the mechanical properties decreased. The mechanical properties of composites were improved by adding the compatibilizers, especially the polypropylene grafted maleic anhydride (PP-MAH). When the PP-MAH content was 2.5%, the mechanical properties of the composite materials were superior to others.

Cellulolytic Enzyme Lignin Efficiently Blended with Polycaprolactone: Thermal, Mechanical Properties and Morphological Evaluation

2014 ◽  
Vol 1070-1072 ◽  
pp. 100-106
Author(s):  
Wen Zhu Ouyang ◽  
Yong Huang
Keyword(s):  
Mechanical Properties ◽  
Mechanical Test ◽  
Cellulolytic Enzyme ◽  
Twin Screw Extrusion ◽  
Morphological Evaluation ◽  
Screw Extrusion ◽  
Thermal Mechanical Properties ◽  
Twin Screw ◽  
The Cost ◽  
The Impact

In this study, cellulolytic enzyme lignin (CEL) was blended with polycaprolactone (PCL) by twin-screw extrusion and injection molding. The thermal, mechanical properties and the morphology of the PCL/CEL blends were investigated as a function of CEL content. The results showed that the CEL in the blends acting as nucleus accelerated the crystallization of PCL when CEL was not more than 10 wt%, but retarded PCL to crystallize with more CEL addition. Thermogravimetry analysis (TGA) revealed that the thermal stability of the PCL/CEL blends was almost unaffected by increasing CEL content. Mechanical test showed that, although the elongation at break and the impact strength were decreased, the strength and the modulus of the PCL/CEL blends were significantly higher than those of the neat PCL. Scanning electron microscopy (SEM) observations indicated that the CEL and the PCL were in good miscibility and there was a good adhesion at the interface of the CEL filler and the PCL matrix, suggesting that CEL could be potential filler used in PCL-based materials to reduce the cost of the friendly material, whereas increased its strength and modulus.

scholarly journals Multi-Micro/Nanolayer Films Based on Polyolefins: New Approaches from Eco-Design to Recycling

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 413
Author(s):  
Geraldine Cabrera ◽  
Ibtissam Touil ◽  
Emna Masghouni ◽  
Abderrahim Maazouz ◽  
Khalid Lamnawar
Keyword(s):  
Mechanical Properties ◽  
Multilayer Films ◽  
Twin Screw Extrusion ◽  
Mechanical Recycling ◽  
Structure And Property ◽  
Screw Extrusion ◽  
Twin Screw ◽  
Promising Solution ◽  
Recycling Systems ◽  
Property Control

This paper describes a future-oriented approach for the valorization of polyethylene-based multilayer films. The method involves going from eco-design to mechanical recycling of multilayer films via forced assembly coextrusion. The originality of this study consists in limiting the number of constituents, reducing/controlling the thickness of the layers and avoiding the use of tie layers. The ultimate goal is to improve the manufacturing of new products from recycled multilayer materials by simplifying their recyclability. Within this framework, new structures were developed with two polymer systems: polyethylene/polypropylene and polyethylene/polystyrene, with nominal micro- and nanometric thicknesses. Hitherto, the effect of the multi-micro/nanolayer architecture as well as initial morphological and mechanical properties was evaluated. Several recycling processes were investigated, including steps such as: (i) grinding; (ii) monolayer cast film extrusion; or (iii) injection molding with or without an intermediate blending step by twin-screw extrusion. Subsequently, the induced morphological and mechanical properties were investigated depending on the recycling systems and the relationships between the chosen recycling processes or strategies, and structure and property control of the recycled systems was established accordingly. Based on the results obtained, a proof of concept was demonstrated with the eco-design of multi-micro/nanolayer films as a very promising solution for the industrial issues that arise with the valorization of recycled materials.

Poly (ether ether ketone) composites reinforced by graphene oxide and silicon dioxide nanoparticles

2017 ◽  
Vol 30 (4) ◽  
pp. 406-417 ◽  
Author(s):  
Xiaochen Hou ◽  
Ying Hu ◽  
Xiyu Hu ◽  
Dong Jiang
Keyword(s):  
Graphene Oxide ◽  
Thermal Properties ◽  
Silicon Dioxide ◽  
Twin Screw Extrusion ◽  
Silicon Dioxide Nanoparticles ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
The Matrix ◽  
Twin Screw ◽  
Ether Ketone

Wear-resistant composites with excellent tribological performances and good mechanical/thermal properties were developed by blending the modification of nano-silicon dioxide (m-SiO2) and the modification of graphene oxide (m-GO) with a poly (ether ether ketone) (PEEK) matrix by twin-screw extrusion compounding and subsequently injection molding. The tribological behaviors and the mechanical/thermal properties of the composites were carefully investigated. Compared with pure PEEK, PEEK/m-GO, and PEEK/m-SiO2 composites, the PEEK/m-GO/m-SiO2 composites exhibited considerable enhancements in those performances. These were attributed to m-GO and m-SiO2 that carried the majority of the load during a sliding process and prevented severe wear of the matrix.

Research on Processing Technology Product Design and the Application of Nano-Wood-Plastic Composite Materials

2020 ◽  
Vol 20 (12) ◽  
pp. 7787-7792
Author(s):  
Xin Fang ◽  
Jinjin Rong ◽  
Yilin Deng ◽  
Moon-Hwan Jee
Keyword(s):  
Mechanical Properties ◽  
Wood Plastic Composite ◽  
Twin Screw Extrusion ◽  
Cross Sectional ◽  
Plastic Composite ◽  
Screw Extrusion ◽  
Different Types ◽  
The Matrix ◽  
Twin Screw ◽  
Treatment Agent

This study focused on the design of wood-plastic composite (WPC) products. In this study, recycled high-density polyethylene plastic was used as the matrix, wood powder was used as the filler, different types of nanofillers and self-synthesized nanofiller treatment agents were added, and the twin-screw extrusion granulation method was used to prepare nano-WPC materials. The effects of different types of nanofillers on the mechanical properties of nano-WPC materials were investigated, and the cross-sectional structures of the materials were analyzed by scanning electron microscopy. The results showed that nanofiller treatment agents improved the interface compatibility of the materials. When the treatment agent content reached 2.5% and the nano-montmorillonite content reached 10%, the mechanical properties of the material reach their maximum values.

Electrical and mechanical properties of partially bio‐based PP/PBS blends nanocomposites elaborated by twin‐screw extrusion

2021 ◽  
pp. 51401
Author(s):  
Mouhja Bencharki ◽  
Sébastien Rondot ◽  
Ahmed Tara ◽  
Omar Jbara ◽  
Françoise Berzin
Keyword(s):  
Mechanical Properties ◽  
Twin Screw Extrusion ◽  
Screw Extrusion ◽  
Twin Screw

scholarly journals Well-Dispersed Cellulose Nanofiber in Low Density Polyethylene Nanocomposite by Liquid-Assisted Extrusion

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 927 ◽  
Author(s):  
Tengku Arisyah Tengku Yasim-Anuar ◽  
Hidayah Ariffin ◽  
Mohd Nor Faiz Norrrahim ◽  
Mohd Ali Hassan ◽  
Yoshito Andou ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Morphological Analysis ◽  
Cellulose Nanofiber ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Melt Blending ◽  
Twin Screw Extrusion ◽  
Liquid Feeding ◽  
Screw Extrusion ◽  
Twin Screw

Two different liquid assisted processing methods: internal melt-blending (IMB) and twin-screw extrusion (TWS) were performed to fabricate polyethylene (PE)/cellulose nanofiber (CNF) nanocomposites. The nanocomposites consisted maleic anhydride-grafted PE (PEgMA) as a compatibilizer, with PE/PEgMA/CNF ratio of 97/3/0.5–5 (wt./wt./wt.), respectively. Morphological analysis exhibited that CNF was well-dispersed in nanocomposites prepared by liquid-assisted TWS. Meanwhile, a randomly oriented and agglomerated CNF was observed in the nanocomposites prepared by liquid-assisted IMB. The nanocomposites obtained from liquid-assisted TWS exhibited the best mechanical properties at 3 wt.% CNF addition with an increment in flexural strength by almost 139%, higher than that of liquid-assisted IMB. Results from this study indicated that liquid feeding of CNF assisted the homogenous dispersion of CNF in PE matrix, and the mechanical properties of the nanocomposites were affected by compounding method due to the CNF dispersion and alignment.

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