Characterisation of interphase nanoscale property variations in glass fibre reinforced polypropylene and epoxy resin composites

Gao, Shang‐Lin; Mäder, Edith

doi:10.1016/s1359-835x(01)00134-8

Cited by 304 publications

(156 citation statements)

References 36 publications

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“…The local properties, such as thermal, mechanical, chemical, and morphological characteristics are different from the ones of the surrounding bulk matrix. Nowadays, the existence of a transition region between fibre and matrix is widely accepted and new characterization methods revealed locally different properties within a region of a few tens to a few hundreds of nanometers [1][2][3][4][5]. Sizing chemistry and interdiffusion play a great part in the development of interphases, which have been investigated in our earlier work [5].…”

Section: Introductionmentioning

confidence: 91%

“…Nowadays, the existence of a transition region between fibre and matrix is widely accepted and new characterization methods revealed locally different properties within a region of a few tens to a few hundreds of nanometers [1][2][3][4][5]. Sizing chemistry and interdiffusion play a great part in the development of interphases, which have been investigated in our earlier work [5]. When the sizing layer becomes the 'weak point' of the system, failure occurs within it [4,6,7].…”

Section: Introductionmentioning

confidence: 95%

“…If a thicker film former layer on the GF is present, the GF/matrix interface is not necessarily the weakest region and failure can start within the film former layer due to insufficient shear strength of the film former PP or at the film former/matrix interface. It is known that upon consolidation of the composites the interdiffusion of the GF sizing and matrix polymer results in the formation of the interphase affecting the IFSS of composites [5]. For GF with a thicker film former layer the property gradient in the interphase is more pronounced since the range of interdiffusion is limited.…”

Section: Effect Of Sizing Formulation and Glass Fibre Diameter On Thementioning

confidence: 99%

“…In this context, atomic force microscopy (AFM) related measurements, e.g. phase imaging, nano-scratch and nano-indentation [5,20,21] or the use of microthermal analysis [22,23] have revealed gradient properties as well as the local extension of the interphase for several fibre/matrix systems. Additionally, the effects of different fibre treatments, including the application of different silanes, film formers and coatings have been studied and related to the mechanical properties of the composites [24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Systematically varied interfaces of continuously reinforced glass fibre/polypropylene composites: Comparative evaluation of relevant interfacial aspects

Rausch¹,

Zhuang²,

Maeder³

2010

Express Polym. Lett.

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Abstract.Interface related mechanical properties of unidirectional continuous glass fibre (GF)/polypropylene (PP) composites made of commingled yarns have been systematically studied according to a three level, three-factor factorial design. The three systematically varied factors comprised different silane coupling agent and film former contents in GF sizings as well as a varying GF diameter. Besides the statistical evaluation of those main effects on the transverse tensile and compression shear strengths of the composites, interfacial shear strength measurements on model composites have been performed. The latter ones as well as the results of the dynamic mechanical thermal analysis support the statistical significance of sizing components, the sizing content on the GF, and GF diameter for the mechanical properties of the composites. This highlights the interplay of proper sizing formulation and reproducible GF-spinning conditions, as both affect the interfacial bonding of continuously reinforced GF/PP composites.

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 95%

Section: Effect Of Sizing Formulation and Glass Fibre Diameter On Thementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Systematically varied interfaces of continuously reinforced glass fibre/polypropylene composites: Comparative evaluation of relevant interfacial aspects

Rausch¹,

Zhuang²,

Maeder³

2010

Express Polym. Lett.

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“…a region around the surface between the constituent phases of the composites) have different characteristics with respect to the matrix. In fact, around the inclusion surface there is a region where the local properties are different of the bulk matrix properties [9]. In the interphase region from the matrix to the filler such differences become gradual.…”

Section: Introductionmentioning

confidence: 99%

Influence of the filler content on the free nanohole volume in epoxy-based composites

Tognana¹,

Salgueiro²,

Somoza³

et al. 2013

Express Polym. Lett.

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Abstract.A study on free nanohole volumes in particulate epoxy matrix composites as a function of the aluminum particles content is presented. Specifically, the influence of the filler content in the epoxy matrix on the nanohole volume is analyzed in terms of the mechanical and morphological properties of the composites fabricated. Nanoholes data were measured using positron annihilation lifetime spectroscopy recently published by the authors. Applying the Park-Earmme micromechanical model, these data are interpreted in terms of the thermal stresses generated during the curing process applied during fabrication. Some input parameters of the model were experimentally obtained. In order to obtain a satisfactory description of the evolution of the free nanohole volume in the whole range of filler contents, a contribution due to the matrix-particle interphases is taken into account in the micromechanical model. To this aim, specific information on the interphases was obtained using atomic force microscopy (AFM), scanning electron microscopy (SEM), differencital scanning calorimetry (DSC) and a free-constraint analysis of the positron lifetime data.

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Composite Micromechanics

Jančář

2012

Wiley Encyclopedia of Composites

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Composite micromechanics deals with the relationships between macroscopic properties of heterogeneous polymer matrix materials such as lamina or particulate composite and its microstructural parameters. In composite mechanics, this is the largest length scale at which structural details are considered. The primary objective of this article is to ascertain the state of the art regarding the understanding and prediction of the properties of polymer composites reinforced with microsized fibrous or particulate inclusions as affected by the inclusion content, shape, size, properties, orientation, and quality of the interface/interphase phenomena.

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Characterisation of interphase nanoscale property variations in glass fibre reinforced polypropylene and epoxy resin composites

Cited by 304 publications

References 36 publications

Systematically varied interfaces of continuously reinforced glass fibre/polypropylene composites: Comparative evaluation of relevant interfacial aspects

Systematically varied interfaces of continuously reinforced glass fibre/polypropylene composites: Comparative evaluation of relevant interfacial aspects

Influence of the filler content on the free nanohole volume in epoxy-based composites

Composite Micromechanics

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