Critical particle size for interfacial debonding in polymer/nanoparticle composites

Chen, Jiankang; Wang, Gong‐Tao; Yu, Zhong‐Zhen; Huang, Zhuping; Mai, Yiu‐Wing

doi:10.1016/j.compscitech.2010.02.004

Cited by 54 publications

(28 citation statements)

References 54 publications

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“…However, the interfacial adhesion strength should not be too low so as to significantly scarify the modulus and other mechanical properties [7]. Chen et al proposed a model based on meso-mechanics to predict the interfacial strength under uniaxial loading, and they concluded that the critical particle size for debonding depends on the degree of adhesion between the nanoparticles and the polymer matrix [11]. Zappalorto et al described the role of the interphase region in interfacial debonding conditions under hydrostatic loading [12].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Interphase and Interface Characteristics on the Tensile Behaviour of POM/CaCO3 Nanocomposites

Zakaria

Shelesh‐Nezhad

2014

Nanomaterials and Nanotechnology

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The condition of the interfacial area and interphase region in a nanocomposite can significantly affect its mechanical performance. In this research, the tensile performance of a POM/CaCO3 nanocomposite, including the modulus of elasticity and tensile strength, are analysed using different mathematical models and the Ansys FEM software. The mechanisms of the plastic deformation and crazing of the POM/CaCO3 nanocomposite were investigated using FEM. Furthermore, the effects of interface adhesion and the interphase property on interfacial debonding, as well as tensile properties, were analysed. The tensile strength of the nanocomposite could not be greater than that of bulk POM because of the failure which was initiated from the matrix. By stiffening the interphase and increasing the adhesion between nanoparticle and polymer, the nanocomposite's elastic modulus and strength were increased. Two toughening mechanisms, including plastic deformation and crack initiation, were observed in the POM/CaCO3 nanocomposite. The high interfacial adhesion of the matrix to the particles led to the formation and propagation of crazes along the extension load in the POM matrix. The tensile strengths of different nanocomposites were over-predicted by the Pukanszky model, while the moduli magnitudes estimated by the Ji mathematical model were less when compared to those determined by FEM.

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Section: Introductionmentioning

confidence: 99%

The Effects of Interphase and Interface Characteristics on the Tensile Behaviour of POM/CaCO3 Nanocomposites

Zakaria

Shelesh‐Nezhad

2014

Nanomaterials and Nanotechnology

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“…In the literature, various theories have been proposed to describe damage evolution in composites embedding different types of inclusions, including CNTs [4,5,6,7,8,9,10]. The literature on linear and nonlinear models of carbon nanotube nanocomposite materials employed for micronano plates or beams is wide and covers diverse fields such as homogenization [14], gradient/nonlocal elasticity [16,17,18,19], elasto-plasticity [20].…”

Section: A C C E P T E Dmentioning

confidence: 99%

A nonlinear mechanical model for the fatigue life of thin-film carbon nanotube supercapacitors

Formica

Lacarbonara

2015

Composites Part B: Engineering

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“…Two toughening mechanisms were again seen to be responsible: plastic shear-yield bands and debonding of the silica nanoparticles followed by plastic void growth of the epoxy. The debonding process was modelled by Chen et al [10] and was extended accounting for the existence of an interphase between particle and matrix by Zappalorto et al [11]. It is well known that the adjacent polymer chains are disordered due the addition of the filler, leading to the formation of an interphase zones; its importance was discussed recently by Zappalortao et al [12].…”

Section: Introductionmentioning

confidence: 99%

“…To propagate a crack, enough energy must be available: the energy release rate (available from the change of the elastic energy and the applied load) that is at least equal to the energy necessary to initiate the crack propagation. This is expressed usually as sown in Equation (10): (10) This is a necessary condition; to move the crack, the changes of the energies of both sides must be considered, i.e. the derivatives to the crack length.…”

Section: Introductionmentioning

confidence: 99%

Fracture toughness modelling of polymers filled with inhomogeneously distributed rigid spherical particles

Lauke¹

2017

Express Polym. Lett.

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Abstract.Filler particles are not homogeneously distributed in real composites consisting of polymer matrices and rigid spherical particles. In the presence of a crack, high multiaxial stresses develop in the material which are a function of the distance from the crack tip. This variation effects the stress concentration in the periphery of the inhomogeneously distributed particles. For a certain stress level closer particles are able to debond from the matrix while particle pairs with larger centre to centre distances may still be bonded to the matrix. Based on a two particle model, the debonding and matrix yielding energies were calculated. Subsequent integration over the local composite deformation results in the fracture toughness of such composites. Randomly distributed particles provide a lower fracture toughness in modelling as compared to inhomogeneoulsy distributed particles in the composite.

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Critical particle size for interfacial debonding in polymer/nanoparticle composites

Cited by 54 publications

References 54 publications

The Effects of Interphase and Interface Characteristics on the Tensile Behaviour of POM/CaCO3 Nanocomposites

The Effects of Interphase and Interface Characteristics on the Tensile Behaviour of POM/CaCO3 Nanocomposites

A nonlinear mechanical model for the fatigue life of thin-film carbon nanotube supercapacitors

Fracture toughness modelling of polymers filled with inhomogeneously distributed rigid spherical particles

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