A technological solution to the testing and data reduction of single fibre fragmentation tests

Tripathi, Devesh; Lopattananon, Natinee; Jones, Frank R.

doi:10.1016/s1359-835x(98)00076-1

Cited by 28 publications

(13 citation statements)

References 17 publications

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“…The single fiber test was carried out using the method described by Tripathy et al16 The fibers having the diameter in the range of 30–50 μm were carefully selected under microscope to minimize the complexity of diameter irregularity in the test. Single fiber was selected at random from the untreated, 5%NaOH, 1%DGEBA, and 5%NaOH/1%DGEBA treated PALFs by hand and carefully mounted onto light, thin cards punched with a hole of 4.5 mm diameter as illustrated in Figure 1(a).…”

Section: Methodsmentioning

confidence: 99%

Influence of fiber modification on interfacial adhesion and mechanical properties of pineapple leaf fiber‐epoxy composites

Lopattananon

Payae

Seadan

2008

J of Applied Polymer Sci

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Three kinds of surface treatment, that is, the alkalization (5% w/v NaOH aqueous solution), the deposition of diglycidyl ether of bisphenol A (DGEBA) from toluene solution (1% w/v DGEBA), and the alkalization combined with the deposition of DGEBA (5% w/v NaOH/1% w/v DGEBA) were applied to modify interfacial bonding and to enhance mechanical properties of pineapple leaf fiber (PALF) reinforced epoxy composites. The fiber strength and strain were measured by single fiber test and the fiber strength variation was assessed using Weibull modulus. Furthermore, a fragmentation test was used to quantify the interfacial adhesion of PALFepoxy composite. It was verified that the interfacial shear strength of modified PALFs was substantially higher than that of untreated PALF by almost 2-2.7 times because of the greater interaction between the PALFs and epoxy resin matrix. The strongest interfacial adhesion was obtained from the fibers that had been received the alkalization combined with DGEBA deposition. Moreover, the flexural and impact properties of unidirectional PALF-epoxy composites were greatly enhanced when reinforced with the modified PALFs due to an improvement in interfacial adhesion, particularly in the synergetic use of 5% NaOH and 5% NaOH/1% DGEBA.

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Section: Methodsmentioning

confidence: 99%

Influence of fiber modification on interfacial adhesion and mechanical properties of pineapple leaf fiber‐epoxy composites

Lopattananon

Payae

Seadan

2008

J of Applied Polymer Sci

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“…The critical length (L c ) for various matrix/fibre pairs was evaluated according to the ''single fibre fragmentation test'' (SFFT) [32][33][34][35][36]: a specimen containing a single aligned wool fibre, embedded into the polymer matrix, is stretched along the fibre axis direction until all fragments are shorter than the length needed to transfer sufficient stress from matrix to fibre to break the fibre. The average length of the resulting fibre fragments (L m ) is correlated to L c using Eq.…”

Section: Characterisationmentioning

confidence: 99%

Wool fibres functionalised with a silane-based coupling agent for reinforced polypropylene composites

Conzatti

Giunco

Stagnaro

et al. 2014

Composites Part A: Applied Science and Manufacturing

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Polypropylene (PP)-based composites containing 20 wt.% wool fibres were successfully prepared using a simple melt blending procedure. A blend of a commercial-grade PP and a maleinised PP was chosen as the matrix. To investigate the effects of modifying the fibre surface on the fibre/matrix adhesion, wool fibres were used as received, oxidised, or functionalised with a silane-based coupling agent, capable in principle of reacting with both the fibres and the polyolefinic matrix. The silanisation of the fibres and the consequent surface modifications were assessed using infrared spectroscopy and scanning electron microscopy. The resulting PP-based composites were thoroughly characterised in terms of their morphology, thermal stability and mechanical behaviour

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“…[30,47]. The shear lag analysis approach proposed by Kelly and Tyson [48,49] was used to calculate the IFSS s between carbon fibres and PA-12:…”

Section: Effect Of Apo Treatment On Carbon Fibre/pa12 Adhesion: Singlmentioning

confidence: 99%

“…" l denoting the average fragment length, which is the arithmetic mean of the measured fragment length at the saturation stage [49]. The accuracy in determining r fu can be improved by estimation through Weibull statistical analysis: [50] r fu…”

Section: Effect Of Apo Treatment On Carbon Fibre/pa12 Adhesion: Singlmentioning

confidence: 99%

Continuous Atmospheric Plasma Oxidation of Carbon Fibres: Influence on the Fibre Surface and Bulk Properties and Adhesion to Polyamide 12

Erden

Lamorinière

et al. 2010

Plasma Chem Plasma Process

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Continuous atmospheric plasma oxidation (APO) was used to introduce oxygen functionalities to the surface of carbon fibres in an attempt to enhance interfacial adhesion between carbon fibres and polyamide-12 (PA-12). APO only affects the surface properties of the fibres while their bulk properties remained unchanged. Contact angle and f-potential measurements demonstrated that APO-treated fibres became significantly more hydrophilic due to the introduction of polar oxygen-containing groups on the fibre surface, which also resulted in an increase of surface energy on the carbon fibres. The interfacial shear strength of single carbon fibre/PA-12 model composites, determined by single fibre fragmentation tests, showed an increase from 40 to 83 MPa with up to 4 min of APO treatment time which confirms that the fibre/matrix interfacial adhesion was enhanced. This highlights that the incorporation of APO into composite manufacturing will allow tailoring of the fibre/ matrix interface.

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A technological solution to the testing and data reduction of single fibre fragmentation tests

Cited by 28 publications

References 17 publications

Influence of fiber modification on interfacial adhesion and mechanical properties of pineapple leaf fiber‐epoxy composites

Influence of fiber modification on interfacial adhesion and mechanical properties of pineapple leaf fiber‐epoxy composites

Wool fibres functionalised with a silane-based coupling agent for reinforced polypropylene composites

Continuous Atmospheric Plasma Oxidation of Carbon Fibres: Influence on the Fibre Surface and Bulk Properties and Adhesion to Polyamide 12

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