Mechanical and Thermal Properties Modeling, Sorption Characteristics of Multiscale (Multiwalled Carbon Nanotubes/Glass Fiber) Filler Reinforced Polypropylene Composites

Rasana, Nanoth; Jayanarayanan, Karingamanna; Pavithra, R.; Nandhini, G.; P, Ramya; Veeraraagavan, Annusamy V.

doi:10.1002/vnl.21696

Cited by 19 publications

(9 citation statements)

References 46 publications

(88 reference statements)

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“…An example of this is the addition of reinforcing agents [2] in polymeric matrices' plastic matrix. Such reinforcements can be glass fibers [3,4], carbon fibers [5], glass fibers/carbon nanotubes [6], kenaf [7], and Kevlar fibers [8], among others.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Wood Flour from White Oak Branches as Reinforcement in a Polypropylene Matrix: Physical and Mechanical Characterization

et al. 2022

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Compared to other fibrous materials, plant fibers can act as a reinforcement in plastics due to their relatively high strength and rigidity, low cost, low density, biodegradability, and renewability. In this context, this study examines the effect of the particle size and content of white oak wood flour (Quercus laeta Liemb), obtained from its branches, on the properties of commercial polypropylene. In Mexico, wood from the branches of Quercus laeta Liemb is barely utilized despite its abundance and viability. The main objective of this study is to demonstrate that this waste material can be exploited to prepare useful materials, in this case composites with competitive properties. Tensile and flexural tests, as well as impact strength and melt flow index were evaluated. In addition, density and water absorption capacity were also tested. Results showed that the water absorption increased with the incorporation of wood particles. Mechanical properties were strongly influenced by particle content. A reduction in elongation and strength was observed, while Young’s modulus and flexural modulus increased with the incorporation of wood particles. Impact strength increased with particle size and particle content.

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Section: Introductionmentioning

confidence: 99%

Utilization of Wood Flour from White Oak Branches as Reinforcement in a Polypropylene Matrix: Physical and Mechanical Characterization

et al. 2022

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“…In another study, Rasana et al [ 64 ] melt blended short GFs of length 3 mm and MWCNTs with PP to fabricate PP composites. The melt processing was carried out in two steps.…”

Section: Nanofiller Inclusion Methodsmentioning

confidence: 99%

Interfacial Engineering Methods in Thermoplastic Composites: An Overview

et al. 2023

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The paper critically analyzed different interfacial enhancing methods used in thermoplastic composites. Although the absence of cross-linked polymer chains and chemical bonds on solidification enables the thermoplastics to be remelted, it creates weak interfacial adhesion between fibre reinforcements and the thermoplastic matrix. The weak fibre-matrix interface bonding reduces the efficiency with which the applied load can be transferred between these composite constituents, causing the composite to fail prematurely. Their need for high-temperature processing, poor compatibility with other polymer matrices, and relatively high viscosity render thermoplastics challenging when used to manufacture composite laminates. Therefore, various methods, including nanoparticles, changing the polarity of the fibre surface by plasma etching, chemical treatment with ozone, or an oxidative attack at the fibre surface, have been applied to improve the fibre/matrix bonding in thermoplastic composites. The fabrication steps followed in these techniques, their progress in research, and the associated toughening mechanisms are comprehensively discussed in this paper. The effect of different fibre-matrix interfacial enhancement methods on the mechanical properties of thermoplastic composites is also deliberated.

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“…The crystallinity ( χ c ) of PP in various PP/TPU samples was calculated by the following equation:

χ_{normalc ((), PP)} = \frac{normalΔ H_{normalm ((), PP)}}{normalΔ H_{normalm ((), PP)}^{0} \times w_{PP}} \times 100 %,

where w PP is the weight fraction of PP in the PP/TPU samples;

normalΔ H_{normalm ((), PP)}^{0}

is the melting enthalpy of various PP/TPU samples;

normalΔ H_{normalm ((), PP)}^{0}

is the melting enthalpy of pure PP that 100% crystallized that is considered as 207 J/g. [ 27,28 ]…”

Section: Methodsmentioning

confidence: 99%

“…where w PP is the weight fraction of PP in the PP/TPU samples; ΔH 0 m PP ð Þ is the melting enthalpy of various PP/ TPU samples; ΔH 0 m PP ð Þ is the melting enthalpy of pure PP that 100% crystallized that is considered as 207 J/g. [27,28]…”

Section: Differential Scanning Calorimetrymentioning

confidence: 99%

Thermoplastic polyurethane (TPU) modifier to develop bimodal cell structure in polypropylene/TPUmicrocellular foam in presence of supercriticalCO₂

Wang

et al. 2020

Vinyl Additive Technology

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Currently, the fabrication of microcell and bimodal cell structures (BCS) in polymer foams by using supercritical fluids has become a hot as well as a challenging research area worldwide. In this work, an environmentally friendly, effective, facile, and CO 2-based foaming technique was presented to fabricate microcellular polypropylene (PP) foams with BCS via blending with thermoplastic polyurethane (TPU). The toughness, thermal properties, rheological properties, and foamability of PP were systematically investigated with gradual incorporation of TPU. Representative sea-island structure was observed in the scanning electron microscopy (SEM) images for the fracture surface of various PP/TPU samples. Rheological measurement results demonstrated that the viscoelasticity of various PP/TPU samples was improved remarkably compared with that of pure PP and pure TPU. The impact strength of various PP/TPU samples possessed the highest value as 12.4 kJ/m 2 with the TPU content of 15 wt%. After the addition of TPU, an ameliorative cellular morphology was observed in the SEM micrographs of various PP/TPU samples and their volume expansion ratio was enhanced significantly thanks to their improved melt elasticity. Moreover, it is worth noting that BCS appeared in various PP/TPU foams when the TPU content exceeded 5 wt%.

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Mechanical and Thermal Properties Modeling, Sorption Characteristics of Multiscale (Multiwalled Carbon Nanotubes/Glass Fiber) Filler Reinforced Polypropylene Composites

Cited by 19 publications

References 46 publications

Utilization of Wood Flour from White Oak Branches as Reinforcement in a Polypropylene Matrix: Physical and Mechanical Characterization

Utilization of Wood Flour from White Oak Branches as Reinforcement in a Polypropylene Matrix: Physical and Mechanical Characterization

Interfacial Engineering Methods in Thermoplastic Composites: An Overview

Thermoplastic polyurethane (TPU) modifier to develop bimodal cell structure in polypropylene/TPUmicrocellular foam in presence of supercriticalCO₂

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Mechanical and Thermal Properties Modeling, Sorption Characteristics of Multiscale (Multiwalled Carbon Nanotubes/Glass Fiber) Filler Reinforced Polypropylene Composites

Cited by 19 publications

References 46 publications

Utilization of Wood Flour from White Oak Branches as Reinforcement in a Polypropylene Matrix: Physical and Mechanical Characterization

Utilization of Wood Flour from White Oak Branches as Reinforcement in a Polypropylene Matrix: Physical and Mechanical Characterization

Interfacial Engineering Methods in Thermoplastic Composites: An Overview

Thermoplastic polyurethane (TPU) modifier to develop bimodal cell structure in polypropylene/TPUmicrocellular foam in presence of supercriticalCO2

Contact Info

Product

Resources

About

Thermoplastic polyurethane (TPU) modifier to develop bimodal cell structure in polypropylene/TPUmicrocellular foam in presence of supercriticalCO₂