Effects of silane coupling agents on the interphase and performance of glass-fiber-reinforced polymer composites

Wu, Hua; Dwight, D. W.; Huff, Norman T.

doi:10.1016/s0266-3538(97)00033-x

Cited by 127 publications

(66 citation statements)

References 11 publications

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“…with low coupling agent density, and then progresses through the matrix. Great efforts have been conducted to understand the influence of these weak aspects [3,5,[16][17][18][19]. Among them, treating sized GFs with solvents, usually acetone or water, to partly wash out unwanted components is a simple way for fundamental research.…”

Section: Introductionmentioning

confidence: 99%

Study on interfacial adhesion strength of single glass fibre/polypropylene model composites by altering the nature of the surface of sized glass fibres

Zhuang

Burghardt²,

Mäder

2010

Composites Science and Technology

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Polypropylene (PP) compatibly sized glass fibres (GFs) were treated with boiling water and toluene, respectively, to reveal the interactions of water and toluene with different components in the sizing of sized GF and their influences on the interfacial adhesion strength of GF/PP model composites.Compared to control GF/PP model composites, about 30% increase of interfacial adhesion strength was achieved for composites with water-treated GF, whereas a small decrease of interfacial adhesion strength was revealed for composites with toluene-treated GF. X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, Zeta-potential measurement, and water contact angle measurement demonstrated that the boiling water treated GFs posses a more polar and hydrophilic surface with homogeneously distributed derivatives of γ-aminopropyltriethoxysilane, which is related to a higher interfacial adhesion strength for water treated GF/PP model composites.In contrast, hot toluene treated GFs led to a more hydrophobic surface with low molar mass PP and surfactants enriching on the outermost surface.

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Section: Introductionmentioning

confidence: 99%

Study on interfacial adhesion strength of single glass fibre/polypropylene model composites by altering the nature of the surface of sized glass fibres

Zhuang

Burghardt²,

Mäder

2010

Composites Science and Technology

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“…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]. Regarding the local extension of the interphase, it was mentioned that increasing the interphases thickness could turn them into 'weak spots' with regard to the mechanical performance of the composites [4,6].…”

Section: Introductionmentioning

confidence: 99%

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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“…Since, improved strength and stiffness are typically the properties of interest in the final composite, this effort has usually centered around a search for improved adhesion between the filler and polymer matrix. Generally, this search is for a coupling agent, 11 or compatibilizer 12 that bridges between the matrix and filler phases by providing improved adhesion. The quest for improved compatibilizers 12 has attracted the talents of many researchers.…”

Section: Introductionmentioning

confidence: 99%

Structural effects on the tensile and morphological properties of zeolite-filled polypropylene derivative composites

et al. 2004

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We have studied the effects that inorganic zeolite powder have on structurally different copolymer [poly(propylene-co-ethylene)] and terpolymer [poly(propylene-co-ethylene-co-1-butene)] systems and the possibility of preparing suitable porous composite films. The impact strength and yield stress of the composites did not improve upon any further loading of zeolite, but the modulus increased gradually with respect to the filler loading. The experimental modulus of each of the two systems was compared with theoretical models. We performed a morphological study of the filler mixing efficiency and image analysis. The number-, weight-, and z-average air hole diameters were compared with respect to the draw ratio as well as the zeolite loading. The experimental results suggest that these two matrices can provide a new choice for preparing future multiphase polymeric porous films by stretching them unidirectionally. In particular, we suggest that a 40 wt% zeolite loading at a draw ratio of 4 is useful for porous film applications.

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Effects of silane coupling agents on the interphase and performance of glass-fiber-reinforced polymer composites

Cited by 127 publications

References 11 publications

Study on interfacial adhesion strength of single glass fibre/polypropylene model composites by altering the nature of the surface of sized glass fibres

Study on interfacial adhesion strength of single glass fibre/polypropylene model composites by altering the nature of the surface of sized glass fibres

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

Structural effects on the tensile and morphological properties of zeolite-filled polypropylene derivative composites

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