Synergic Effect of Two Inorganic Fillers on the Mechanical and Thermal Properties of Hybrid Polypropylene Composites

Aguilar, Héctor; Yazdani‐Pedram, Mehrdad; Toro, P.; Quijada, Raúl; López–Manchado, Miguel A.

doi:10.4067/s0717-97072014000200015

Cited by 18 publications

(12 citation statements)

References 26 publications

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“…According to the authors, the higher thermal stability of the hybrid polypropylene composites could be attributed to the pore diameter of MCC (biomineralized CaCo3) that acts with a thermal barrier. 28…”

Section: Resultsmentioning

confidence: 99%

Mechanical and microstructural characterization of epoxy/sawdust (Pinus elliottii) composites

Mendes

Fleming

Goncalves

et al. 2020

Polymers and Polymer Composites

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The use of wood residues in polymeric matrices is notable for promoting significant mechanical reinforcement of the matrix. Such composites are widely used in the development of new composite materials with tunable mechanical properties for a variety of applications. In this work, polymeric composites with epoxy resin as the polymeric matrix and Pinus elliottii wood residue as the reinforcement were obtained. The composites were obtained by adding wood residue (sawdust) with particle sizes of 0.30, 0.60, and 1.19 millimeters into an epoxy matrix to determine the best mechanical properties of the composite as a function of the particle size. The polymer/sawdust composites were characterized by scanning electron microscopy (SEM), Infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and stress–strain tests. SEM images revealed a smooth and homogeneous surface free of defects and holes. However, lateral profile images showed the presence of fine sawdust particles agglomerated and a considerable number of bubbles and cavities that could interfere in the mechanical properties of the composites. The FTIR characterization of the composite identified the main bands related to epoxy and lignin/cellulose chains. The results of the mechanical properties suggested that epoxy composites with sawdust can increase its tensile strength according to the sawdust particle size introduced into the matrix.

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Section: Resultsmentioning

confidence: 99%

Mechanical and microstructural characterization of epoxy/sawdust (Pinus elliottii) composites

Mendes

Fleming

Goncalves

et al. 2020

Polymers and Polymer Composites

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“…Aguilar et al prepared PP-based nanocomposites with organically modified montmorillonite (oMMT) and different types of CaCO 3 via melt blending. The resulting materials presented enhanced dispersion and better mechanical and thermal properties 50 . Kodal et al investigated the mechanical, thermal and morphological properties of PA6 hybrid composites containing talc and wollastonite 51 .…”

Section: Introductionmentioning

confidence: 99%

Hybrid Pu/Synthetic Talc/Organic Clay Ternary Nanocomposites: Thermal, Mechanical and Morphological Properties

Dias

Prado

Ligabue

et al. 2018

Polymers and Polymer Composites

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Polyurethane (PU) nanocomposites filled with inorganic particles, aiming at the improvement of mechanical and thermal properties, are well known. Unlike previous work we describe here the combination of two fillers, synthetic talc (silico-metallic mineral particles-SSMMP) with distinct hydrothermal processes (SSMMP 7 h and 24 h) and organically-modified commercial clay (SPR), aiming towards development of new polyurethane ternary nanocomposites by in situ polymerisation. Fillers were added 3 wt.% of the mass of pristine polymer, with a ranging of weight proportions (75:25/25:75) of SSMMP and SPR. Results were compared to those for nanocomposites containing pure SSMMP and SPR fillers. Dispersion degrees and filler interactions with the polyurethane matrix were followed by FTIR, XRD, SEM, TEM and AFM techniques. Results showed that the fillers presented a good dispersion and were exfoliated/ well dispersed in the polyurethane matrix. Thermal and mechanical properties of nanocomposites were evaluated in comparison to the binary nanocomposites (PU/SSMMP 7 h, PU/SSMMP 24 h and PU/ SPR). All nanocomposites presented superior values of Young's modulus to that of pristine PU. Results evidenced that the blend of SSMMP and SPR fillers is an interesting strategy to improve thermal and mechanical properties of nanocomposites.

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“…As a result, the stiffness of the nanocomposites will decrease in the presence of TrGO:Fe 3 O 4 , and the brittleness of the nanocomposites will be higher than the neat polymer matrices. This suggests that the use of a binding agent or organic surface modification can be a strategy to increase the interaction between fillers and polymer matrix and to avoid the decrease of the mechanical properties [ 51 , 52 , 53 , 54 , 55 ].…”

Section: Resultsmentioning

confidence: 99%

Study of the Influence of Magnetite Nanoparticles Supported on Thermally Reduced Graphene Oxide as Filler on the Mechanical and Magnetic Properties of Polypropylene and Polylactic Acid Nanocomposites

et al. 2021

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A study addressed to develop new recyclable and/or biodegradable magnetic polymeric materials is reported. The selected matrices were polypropylene (PP) and poly (lactic acid) (PLA). As known, PP corresponds to a non-polar homo-chain polymer and a commodity, while PLA is a biodegradable polar hetero-chain polymer. To obtain the magnetic nanocomposites, magnetite supported on thermally reduced graphene oxide (TrGO:Fe3O4 nanomaterial) to these polymer matrices was added. The TrGO:Fe3O4 nanomaterials were obtained by a co-precipitation method using two types of TrGO obtained by the reduction at 600 °C and 1000 °C of graphite oxide. Two ratios of 2.5:1 and 9.6:1 of the magnetite precursor (FeCl3) and TrGO were used to produce these nanomaterials. Consequently, four types of nanomaterials were obtained and characterized. Nanocomposites were obtained using these nanomaterials as filler by melt mixer method in polypropylene (PP) or polylactic acid (PLA) matrix, the filler contents were 3, 5, and 7 wt.%. Results showed that TrGO600-based nanomaterials presented higher coercivity (Hc = 8.5 Oe) at 9.6:1 ratio than TrGO1000-based nanomaterials (Hc = 4.2 Oe). PLA and PP nanocomposites containing 7 wt.% of filler presented coercivity of 3.7 and 5.3 Oe, respectively. Theoretical models were used to analyze some relevant experimental results of the nanocomposites such as mechanical and magnetic properties.

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Synergic Effect of Two Inorganic Fillers on the Mechanical and Thermal Properties of Hybrid Polypropylene Composites

Cited by 18 publications

References 26 publications

Mechanical and microstructural characterization of epoxy/sawdust (Pinus elliottii) composites

Mechanical and microstructural characterization of epoxy/sawdust (Pinus elliottii) composites

Hybrid Pu/Synthetic Talc/Organic Clay Ternary Nanocomposites: Thermal, Mechanical and Morphological Properties

Study of the Influence of Magnetite Nanoparticles Supported on Thermally Reduced Graphene Oxide as Filler on the Mechanical and Magnetic Properties of Polypropylene and Polylactic Acid Nanocomposites

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