The effect of particle size on the rheological properties of polyamide 6/biochar composites

Huber, Tim; Misra, Manjusri; Mohanty, Amar K.

doi:10.1063/1.4918500

Cited by 14 publications

(11 citation statements)

References 11 publications

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“…4a that the smaller particle diameter of xGnP resulted in a lower value of viscosity. A similar phenomenon was observed for polyamide6/biochar composites [37]. Figure 4b shows the melt viscosity of xGnP-filled nanocomposites increased with increasing xGnP loading attributable to the hindering of the movement of the macromolecular chains of the IMPP by the xGnP particles together with high aspect ratio and the shape of the xGnP platelets favoring the formation of a structural network [36].…”

Section: Thermogravimetric Analysissupporting

confidence: 72%

Rheological and thermal properties of exfoliated graphite nanoplatelets‐filled impact modified polypropylene nanocomposites

et al. 2017

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The objective of this research was to investigate the influence of exfoliated graphite nanoplatelets (xGnP) particle diameter, filler loading, and the addition of coupling agents on the rheological and thermal properties of xGnP‐filled impact modified polypropylene (IMPP) nanocomposites. xGnP‐filled IMPP composites were manufactured via melt mixing with and without the addition of polypropylene‐graft‐maleic anhydride (PP‐g‐MA). Particle diameter of xGnP had no significant effect on the melting (Tm) and crystallization (Tc) temperatures as well as degradation behavior of the composites. Storage modulus (E′) of the composites increased with increasing xGnP percent at high filler loadings and the incorporation of xGnP did not significantly affect the glass transition temperature, but filler loading does have a significant effect on the magnitude of the tan delta max peak values. The shear storage modulus (G′) of the composites with smaller diameter xGnP particles was lower than those of the composites with big diameter particle xGnP at lower frequencies. The higher the xGnP content of the composite, the higher the shear viscosity and the smaller particle diameter of xGnP results in lower viscosity values. Addition of a coupling agent decreased the melt viscosity of the xGnP‐filled nanocomposites and caused a slight reduction in the shear‐thinning behavior. POLYM. COMPOS., 39:E1512–E1519, 2018. © 2017 Society of Plastics Engineers

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Section: Thermogravimetric Analysissupporting

confidence: 72%

Rheological and thermal properties of exfoliated graphite nanoplatelets‐filled impact modified polypropylene nanocomposites

et al. 2017

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“…This can be attributed to a further decrease of pore size and pore volume fraction (Figure ), and to an increase of ζ potential (Figure ) associated with a less hydrated particle surface . The associated changes in PS and PSD are also likely to account for the flow properties . Although the flow curves for CT = 600°C at 25 vol.% solid loading in Figure A exhibit similar, or even slightly higher, levels of apparent viscosity than those with CT = 800‐1000°C at 40 vol.% loading shown in Figure B, and printability is also likely under those conditions, the low solids loading (25 vol.%) of the first case would imply a greater degree of shrinkage upon the drying and sintering steps.…”

Section: Resultsmentioning

confidence: 92%

Robocasting: Prediction of ink printability in solgel bioactive glass

et al. 2018

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Bioactive glass powders synthesized by solgel are usually porous and exhibit high specific surface areas, conferring them poor ability for scaffolds fabrication using colloidal processing approaches. The difficulties associated with colloidal processing of solgel glass have hindered so far the processing of 3‐D scaffolds by robocasting. This research paper investigates the importance of calcination temperature (CT) and balls to powder ratio (BPR) used upon wet milling on the maximum achievable solid loading in aqueous media. The effects of CT, BPR, and solid loading on the flow behavior and viscoelastic properties of the suspensions/pastes were evaluated in this preliminary work. The aim is to disclose the sets of experimental variables that are most promising for the formulation of printable inks, and open the way for the future fabrication of porous scaffolds by robocasting and other 3‐D additive manufacturing techniques.

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“…Particles of smaller size present greater surface area for the matrix spread and can be seen as one of the primary reasons for improvement in the strength of composites [56,57]. Shape of the particles also plays an imperative role in deciding the mechanical properties of the composite.…”

Section: Fig 4 Variation In Average Impact Strength Of Compositesmentioning

confidence: 99%

Experimental Investigation into Mechanical Properties of Coconut Shell Powder Modified Epoxy/ 3d E-Glass Composites

Nayak¹,

Shenoy²,

Kini³

et al. 2022

Eng. Sci.

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The effect of particle size on the rheological properties of polyamide 6/biochar composites

Cited by 14 publications

References 11 publications

Rheological and thermal properties of exfoliated graphite nanoplatelets‐filled impact modified polypropylene nanocomposites

Rheological and thermal properties of exfoliated graphite nanoplatelets‐filled impact modified polypropylene nanocomposites

Robocasting: Prediction of ink printability in solgel bioactive glass

Experimental Investigation into Mechanical Properties of Coconut Shell Powder Modified Epoxy/ 3d E-Glass Composites

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