Morphology, mechanical and thermal properties of composites of polypropylene and nanostructured wollastonite filler

Luyt, A. S.; Dramićanin, Miroslav D.; Antić, Željka; Djoković, Vladimir

doi:10.1016/j.polymertesting.2009.01.010

Cited by 137 publications

(80 citation statements)

References 31 publications

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“…The degradation level of the polymer chain is related to free radicals motion from a chain to other and itemized motion through polymer chains; the effect of the chains motion reduced and thermal stability increased due to the presence of nano particles. Therefore, degradation occurs in higher temperatures (Luyt et al, 2009). Besides the protective structures that nanosilica produces against heat (e.g.…”

Section: Thermogravimetric Analysismentioning

confidence: 99%

Effect of Nanosilica on Thermal, Flammability, and Morphological Properties of Wf/RPS-Based Nanocomposites

Kiaei

Amiri

Ahmad

et al. 2018

CERNE

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KIAEI, M.; AMIRI, H.; SAMARIHA, A.; AMANI, N. Effect of nanosilica on thermal, flammability, and morphological properties of WF/rPS-based nanocomposites. CERNE, v. 24, n. 1, p. 59-66, 2018. HIGHLIGHTSThe results showed that the addition of nanosilica increased the thermal stability of the nanocomposite.It was determined that increasing of nano particles to more than a determined level reduced the Limited oxigen index and flammability.The data from thermo gravimetric analysis (TGA) indicated the nanosilica greatly enhanced the thermal stability. ABSTRACTThe present study considered the effect of nanosilica levels on the thermal, flammability, and morphological properties of nanocomposites made of wood flour and recycled polystyrene. To do so, the recycled polystyrene (50%), wood flour (50%), nanosilica (four levels of nanosilica; 0, 2, 4 and 6 phc (parts per hundred compounds)), and maleic anhydride, grafted with polypropylene (at a constant level of 3 phc) were mixed by a twin-screw extruder; then standard experimental samples were made using a hand pressing method. Next, the thermal and flammability properties were measured. The results showed that increasing of nanosilica content to 6 phc by weight increased thermogravimetric analysis (TGA) of nanocomposites; in addition, the limited oxygen index increased. Moreover, scanning electron microscopy (SEM) indicated that an increasing of nanosilica increased compatibility so that better link and adherence was observed among the fiber and matrix material.

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Section: Thermogravimetric Analysismentioning

confidence: 99%

Effect of Nanosilica on Thermal, Flammability, and Morphological Properties of Wf/RPS-Based Nanocomposites

Kiaei

Amiri

Ahmad

et al. 2018

CERNE

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“…It is well known that the plasma polymerization promotes crosslinked structures, due to the multiple reactive species that are generated during the process. This is reflected in the decomposition temperature obtained by TGA, higher than the decomposition temperature of polypropylene (300 ∘ C) [42][43][44].…”

Section: Journal Of Nanomaterialsmentioning

confidence: 99%

Surface Modification of Carbon Nanofibers and Graphene Platelets Mixtures by Plasma Polymerization of Propylene

Covarrubias-Gordillo¹,

Soriano‐Corral²,

Ávila‐Orta³

et al. 2017

Journal of Nanomaterials

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Carbon nanofibers (CNFs), graphene platelets (GPs), and their mixtures were treated by plasma polymerization of propylene. The carbon nanoparticles (CNPs) were previously sonicated in order to deagglomerate and increase the surface area. Untreated and plasma treated CNPs were analyzed by dynamic light scattering (DLS), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and thermogravimetric analysis (TGA). DLS analysis showed a significant reduction of average particle size, due to the sonication pretreatment. Plasma polymerized propylene was deposited on the CNPs surface; the total amount of polymerized propylene was from 4.68 to 6.58 wt-%. Raman spectroscopy indicates an increase in the sp 3 hybridization of the treated samples, which suggest that the polymerized propylene is grafted onto the CNPs.

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“…The strain amplitude was 20 µm and the static force was 1 N as per the reported procedure elsewhere [39]. Data were collected from -50°C temperature to 120°C at a scanning rate of 3°C/min.…”

Section: Prashantha Et Al -Express Polymer Letters Vol5 No4 (2011mentioning

confidence: 99%

Processing and characterization of halloysite nanotubes filled polypropylene nanocomposites based on a masterbatch route: effect of halloysites treatment on structural and mechanical properties

Prashantha¹,

Lacrampe²,

Krawczak³

2011

Express Polym. Lett.

190

126

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Abstract. Halloysites/polypropylene nanocomposites with different nanotubes contents were prepared by diluting a masterbatch containing 30 wt.% halloysites with polypropylene (PP). Unmodified (HNTs) and quaternary ammonium salt treated (QM-HNTs) halloysite nanotubes were used. Both degree of crystallinity and crystallization temperature increase upon addition of halloysites into PP, thus indicating a potential nucleation effect induced by the nanotubes. An homogeneous distribution and dispersion of nanotubes was observed throughout the PP matrix, with a slightly better dispersion in the case of modified QM-HNTs compared to unmodified HNTs. Mechanical tests in tension, bending and notched impact demonstrated that strength and modulus of the nanocomposites significantly increase with addition of halloysites without significant loss of ductility. An halloysite content of 6 wt.% appears as an optimum. Modified halloysites (QM-HNTs) lead to globally better performances due to strong interfacial interaction between the polymer matrix and the nanotubes.

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Morphology, mechanical and thermal properties of composites of polypropylene and nanostructured wollastonite filler

Cited by 137 publications

References 31 publications

Effect of Nanosilica on Thermal, Flammability, and Morphological Properties of Wf/RPS-Based Nanocomposites

Effect of Nanosilica on Thermal, Flammability, and Morphological Properties of Wf/RPS-Based Nanocomposites

Surface Modification of Carbon Nanofibers and Graphene Platelets Mixtures by Plasma Polymerization of Propylene

Processing and characterization of halloysite nanotubes filled polypropylene nanocomposites based on a masterbatch route: effect of halloysites treatment on structural and mechanical properties

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