Mechanical and thermomechanical properties of polyamide 6/Brazilian organoclay nanocomposites

Paz, Renê Anísio da; Leite, Amanda Melissa Damião; Araújo, Edcleide Maria; Medeiros, Vanessa da Nobréga; Mélo, Tomás Jefférson Alves de; Pessan, Luiz Antônio

doi:10.1590/0104-1428.1748

Cited by 22 publications

(14 citation statements)

References 29 publications

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“…The effect is much more pronounced in the case of RHA incorporation than that CC because its porous structure offers enhanced interfacial interactions . It is notable that a small amount of residue left after combustion of neat PP is ~4.6% because all the organic components decompose into gaseous products . In the case of PP composites of CC and RHA, the residues are ~20 wt %, which is nearly equal to the weight % of fillers incorporated.…”

Section: Resultsmentioning

confidence: 99%

Interfacial strengthening of polypropylene composites via bimodal porosity in Rice husk ash: Comparison with calcium carbonate reinforcement

Sharma

Lohia²,

Sharma³

et al. 2018

J of Applied Polymer Sci

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Polypropylene is used in the textile industry in the manufacturing of plastic yarns, tapes, etc., but its low tensile strength and Young's modulus limits its associated applications. Composites of polypropylene with reinforcement of CaCO3 and rice husk ash were processed by compression molding. Bimodal porosity in rice husk ash particles has shown an improved interfacial anchoring effect via capillary effect resulting in enhanced mechanical properties, whereas such an effect is not observed with CaCO3 reinforcement in polypropylene matrix. On reinforcement with 10 wt % of each of rice husk ash and CaCO3, thermal decomposition temperature of polypropylene (333.3 °C) shifted to higher value of 415.9 °C and polypropylene Young's modulus (749.5 MPa) increased to 789.5 MPa (by 5.3%), but tensile strength decreased from 23.5 to 21.2 MPa (by 2.3 MPa only). The isolated contribution of CaCO3 and rice husk ash has been delineated, and resulting interfacial strengths have been quantified using analytical models. Rice husk ash has shown a stronger interfacial anchoring and can effectively replace CaCO3 as reinforcement for achieving improved mechanical and thermal properties of polypropylene composites. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 46989.

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Section: Resultsmentioning

confidence: 99%

Interfacial strengthening of polypropylene composites via bimodal porosity in Rice husk ash: Comparison with calcium carbonate reinforcement

Sharma

Lohia²,

Sharma³

et al. 2018

J of Applied Polymer Sci

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“…will be greatly expanded as the thermal deformation temperature of the material increases. Paz et al [20] studied composite materials prepared with different grades of PA 6 and MMT, indicating an upward trend in HDT as the MMT content increased.…”

Section: Heat Deflection Temperature (Hdt) Of Pa6/ommt Nanocompositesmentioning

confidence: 99%

In-situ Polymerization of exfoliated structure PA6/organo-clay nanocomposites

Sun

Mei

et al. 2020

Reviews on Advanced Materials Science

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Montmorillonite (MMT) was modified with cetyl trimethyl ammonium bromide (CTAB) to obtain organomontmorillonite (OMMT) by stirring and pulsed ultrasonic mixing. Polyamide 6 (PA6)/OMMT nanocomposites were then prepared via in-situ polymerization.The resulting OMMT and PA6/OMMT nanocomposites were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The results suggested that the OMMT interlayer distance was greatly increased to 3.13 nm due to CTAB being inter-calated into the MMT galleries. The OMMT interlayer distance was further enlarged to 10-20 nm during the polymerization process. The OMMT layers were exfoliated into nanoscale layers and uniformly dispersed in the molten ∈-caprolactam and PA6 matrix, and exfoliated structure nanocomposites were formed.

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“…The main applications of PA6 are in the fibers, films, and as the injection‐molded engineering plastics. PA6 crystallizes fast, usually up to 30–40%, providing a high modulus to the material even above the glass transition temperature (Tg) .…”

Section: Introductionmentioning

confidence: 99%

Polyamide/Carbon Nanoparticles Nanocomposites: A Review

2016

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This review is designed to be a comprehensive source for polyamide (PA) nanocomposite research, including fundamental structure/property relationships, manufacturing techniques, and applications of these materials. This work presents the scientific framework for the advances in PA nanocomposite containing carbon nanofiller, and different methods applied in order to synthesis them. This review focuses on the scientific principles and mechanisms in relation to the methods of processing and manufacturing. A comprehensive discussion on technology, modeling, characterization, processing, manufacturing, and applications have been done. The processing and properties of PA nanocomposites with carbon nanofillers are investigated. In addition, the mechanical properties and morphology changes of PA with the incorporation of nanoparticles are described. POLYM. ENG. SCI., 57:475-494, 2017.

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Mechanical and thermomechanical properties of polyamide 6/Brazilian organoclay nanocomposites

Cited by 22 publications

References 29 publications

Interfacial strengthening of polypropylene composites via bimodal porosity in Rice husk ash: Comparison with calcium carbonate reinforcement

Interfacial strengthening of polypropylene composites via bimodal porosity in Rice husk ash: Comparison with calcium carbonate reinforcement

In-situ Polymerization of exfoliated structure PA6/organo-clay nanocomposites

Polyamide/Carbon Nanoparticles Nanocomposites: A Review

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