Effect of processing parameters and strain rate on mechanical properties of carbon nanotube–filled polypropylene nanocomposites

Stan, Felicia; Sandu, Laurentiu I.; Fetecău, Cătălin

doi:10.1016/j.compositesb.2013.11.023

Cited by 38 publications

(42 citation statements)

References 45 publications

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“…However, different results have been reported for the influence of injection pressure and mould temperature on the electrical properties 16 . In contrast, fewer results exist on the influence of the injection molding variables on the mechanical properties 9,14,19 . Stan et al discussed about the sensitivity of the mechanical properties to the injection pressure, while no other injection molding variable was found to be influential 19 .…”

Section: Introductionmentioning

confidence: 99%

Correlation of mechanical and electrical properties with processing variables in MWCNT reinforced thermoplastic nanocomposites

Doagou-Rad

Islam

Jensen

2018

Journal of Composite Materials

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The influence of the processing variables and nanotube content on the mechanical and electrical properties of Polyamide 6,6-based nanocomposites reinforced with Multi-Walled Carbon Nanotubes (MWCNTs) is investigated. Results show that variation in the processing variables such as compounding method, injection melt temperature, injection speed, mold temperature, and holding pressure varies the properties significantly. In fact, composites containing similar contents of the nanofillers show variations in mechanical properties up to 30.0 % and in the electrical properties up to three orders of magnitude. Different processing parameters required for achieving optimal mechanical and electrical performances were also found. Correlation between processing parameters and microstructure within the nanocomposites was also studied. Results show that variation of the processing parameters defines the existence or absence of a nanotube network in the nanocomposite structure. Experimental and micromechanical modeling results show that less control over the nanocomposite morphology and nanotube alignment is achievable in higher nanofiller contents. The underlying mechanisms responsible for the modulation in the properties are also discussed using scanning and transmission electron microscopy, rheological and crystallization investigations. The research provides a recipe to manufacture the tailored nanocomposite with the specified properties for various industrial applications.

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Section: Introductionmentioning

confidence: 99%

Correlation of mechanical and electrical properties with processing variables in MWCNT reinforced thermoplastic nanocomposites

Doagou-Rad

Islam

Jensen

2018

Journal of Composite Materials

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“…Thus, in * Corresponding author: nicoleta.stanciu@ugal.ro , 0 (2019) https://doi.org/10.1051/matecconf /20192 MATEC Web of Conferences 290 900 MSE 2019 30 30 1 1 this paper, the feasibility of 3D printing polypropylene/multi-walled carbon nanotube (PP/MWCNT) composites is investigated. In general, scientific literature results provide extensive information on both mechanical and electrical properties of PP/CNT composites [21][22][23][24][25][26][27][28][29][30][31][32][33] as well as on the rheological properties [21,24,[26][27][28][29][30][31][32][33][34][35][36], mostly at low shear rates; however, the filament extrudability and 3D printability of PP/MWCNT composites were not investigated.…”

Section: Introductionmentioning

confidence: 99%

On the Feasibility of Printing 3D Composite Objects Based on Polypropylene/Multi-walled Carbon Nanotubes

et al. 2019

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In this paper, the feasibility of 3D printing polypropylene/ multi-walled carbon nanotube (PP/MWCNT) composites by fused deposition modeling. First, the rheological behavior of PP with 0.3, 0.5 and 1 wt.% of MWCNT was investigated in order to determine the printability in terms of melt shear viscosity and flow activation energy. Second, the filament extrusion process was optimized by the trial-and-error method in order to obtain round and constant filaments. Finally, tensile specimens were printed and tested in order to determine the mechanical properties at various printing direction. Experimental results show that the PP/MWCNT composite filaments with MWCNT loading up to 1 wt.% have good printability characteristics and can be successfully 3D printed with good mechanical performance.

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“…Among different nanocomposite materials, polymeric nanocomposites have attracted attentions in both academic and industrial field in recent years. Stan et al [6] investigated the effect of processing parameters and amount of carbon nanotubes on mechanical properties of polypropylene (PP). [4] In recent years, many studies have performed in the field of polymeric nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

“…The results of their research indicated that maximum tensile strength was obtained in 2 wt% nanoclay, and injection temperature was the most effective parameter on tensile properties. Stan et al [6] investigated the effect of processing parameters and amount of carbon nanotubes on mechanical properties of polypropylene (PP). The optimum contents of carbon nanotubes were 5 and 1 wt% for maximum tensile strength and strain, respectively.…”

Section: Introductionmentioning

confidence: 99%

Tensile and hardness properties of polycarbonate nanocomposites in the presence of styrene maleic anhydride as compatibilizer

et al. 2017

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In this study, the tensile strength and M-Rockwell hardness of polycarbonate (PC)nanoalumina composites are investigated under various processing parameters. For this purpose, PC using a twin-screw extruder is melt compounded with nanoparticle of Al 2 O 3 in the presence of styrene-co-maleic anhydride (SMA) as the compatibilizer. Influences of weight percentage of nanoalumina and injection processing parameters including injection pressure and holding pressure (all in four levels) are investigated on tensile and hardness properties of nanocomposite samples using Taguchi's L 16 orthogonal array. The scanning electron microscopy (SEM) resultsreveal that an appropriate distribution of nanoparticles in polymeric matrix is achieved. According to the results, nanoalumina content is the most effective parameter on tensile strength and hardness with about 51% and 85% contribution, respectively. Results indicate that by addition 1.5 wt% of nanoalumina, the tensile strength and hardness of samples increase as much as 4.5% and 11%, respectively. Also, the results reveal that injection pressure and holding pressure are also effective parameters to change hardness and tensile strength. K E Y W O R D Smechanical properties, nanocomposite, polycarbonates, strength, styrene maleic anhydride

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Effect of processing parameters and strain rate on mechanical properties of carbon nanotube–filled polypropylene nanocomposites

Cited by 38 publications

References 45 publications

Correlation of mechanical and electrical properties with processing variables in MWCNT reinforced thermoplastic nanocomposites

Correlation of mechanical and electrical properties with processing variables in MWCNT reinforced thermoplastic nanocomposites

On the Feasibility of Printing 3D Composite Objects Based on Polypropylene/Multi-walled Carbon Nanotubes

Tensile and hardness properties of polycarbonate nanocomposites in the presence of styrene maleic anhydride as compatibilizer

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