Novel aligned hemp fibre reinforcement for structural biocomposites: Porosity, water absorption, mechanical performances and viscoelastic behaviour

Baghaei, Behnaz; Skrifvars, Mikael; Salehi, Masoud; Bashir, Tariq; Rissanen, Marja; Nousiainen, Pertti

doi:10.1016/j.compositesa.2014.01.017

Cited by 116 publications

(71 citation statements)

References 57 publications

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“…This hybrid yarn was manufactured with wrap spinning technology using a laboratory spinning machine from Mesdan S.p.A. (Brescia -Italy) and a laboratory yarn twist machine from DirecTwist, AGTEKS CO. Ltd. (Istanbul, Turkey). The PLA-hemp fibre weight ratio was 30:70 [19]. A very uniform and aligned roving was produced in a carding and roving frame.…”

Section: Hybrid Yarn Manufacturementioning

confidence: 99%

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Characterization of thermoplastic natural fibre composites made from woven hybrid yarn prepregs with different weave pattern

Baghaei

Skrifvars

Berglin

2015

Composites Part A: Applied Science and Manufacturing

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Section: Hybrid Yarn Manufacturementioning

confidence: 99%

“…In this study, unidirectional hemp-fibre/PLA composites were made by compression moulding of fabrics composed of hybrid yarns [19], and further subjected to different tests in order to investigate the effects of the pattern style of the woven fabrics (satin and basket patterns) on the mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Characterization of thermoplastic natural fibre composites made from woven hybrid yarn prepregs with different weave pattern

Baghaei

Skrifvars

Berglin

2015

Composites Part A: Applied Science and Manufacturing

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“…Many studies have been conducted to overcome the brittleness of PLA by several approaches, such as chemical modification [3], blending with tougher resins or plasticizers [4,5], preparation of multi-layered film structures [6], fibre reinforcement [7,8] and use of woven structures [9,10]. However, these modifications generally affect the strength, stiffness, or degradability of PLA.…”

Section: Introductionmentioning

confidence: 99%

Flame retarded self-reinforced poly(lactic acid) composites of outstanding impact resistance

Bocz

Domonkos

Igricz

et al. 2015

Composites Part A: Applied Science and Manufacturing

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Impact resistant all-poly(lactic acid) composites were prepared by filmstacking of highly crystalline poly(lactic acid) (PLA) fibres with fully amorphous PLA films. The flammability of the self-reinforced PLA composites (PLA-SRCs) was effectively reduced by incorporating ammonium polyphosphate based flame retardant (FR) additive and montmorillonite clays in a weight ratio of 10 to 1 into the matrix layers. As low as 16 wt% FR content proved to be sufficient for achieving self-* Corresponding author: tel: +36 1/463-1348, e-mail: kbocz@mail.bme.hu, address: Műegyetem rkp. 3., Budapest, 1111, Hungary 2 extinguishing behaviour, i.e. UL94 V-0 rating, and to achieve 50% and 40% reduction of peak of heat release rate and total heat emission, respectively. The introduction of FR additives improved also important mechanical properties compared to the FR-free all-PLA composite. The stiffness of the PLA-SRCs increased steadily with the FR contents of their matrix layers, furthermore, owing to the improved fibre-matrix bonding, prominent energy absorption capacity (impact perforation energy as high as 16 J/mm) was determined for the effectively flame retarded PLA-SRC.

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“…The development of these hybrid yarns is shown in previous publications by Baghaei et al [8][9][10][11][12]. The hybrid yarns were further processed into unidirectional fabrics by warp-knitting with fiber placement.…”

Section: Methodsmentioning

confidence: 99%

“…In preceding research by Baghaei et al [8,9], these have demonstrated promising characteristics, but have not yet led to fully satisfactory composite results. It is necessary to further investigate the materials' characteristics to determine the right processing conditions needed to create optimized biocomposite products.…”

Section: Introductionmentioning

confidence: 99%

Determination of Processing Parameters for Thermoplastic Biocomposites Based on Hybrid Yarns Using Finite Elements Simulation

et al. 2018

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This paper investigates the processing parameters for the compression molding of hemp/PLA hybrid yarn biocomposites and their effect on the final mechanical properties. Finite element simulations are used to develop and assess the processing parameters, pressure, temperature, and time. These parameters are then evaluated experimentally by producing the composites by two different methods, to compare the results of experimentally determined processing conditions to parameters determined by the simulation analysis. The assessment of mechanical properties is done with several experimental tests, showing small improvements for the composites produced with the simulation method. The application of the simulation analysis results in considerably reduced processing times, from the initial 10 min to only three minutes, thereby vastly improving the processing method. While the employed methods are not yet able to produce composites with greatly improved mechanical properties, this study can be seen as a constructive approach, which has the ability to lead to further improvements.

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Novel aligned hemp fibre reinforcement for structural biocomposites: Porosity, water absorption, mechanical performances and viscoelastic behaviour

Cited by 116 publications

References 57 publications

Characterization of thermoplastic natural fibre composites made from woven hybrid yarn prepregs with different weave pattern

Characterization of thermoplastic natural fibre composites made from woven hybrid yarn prepregs with different weave pattern

Flame retarded self-reinforced poly(lactic acid) composites of outstanding impact resistance

Determination of Processing Parameters for Thermoplastic Biocomposites Based on Hybrid Yarns Using Finite Elements Simulation

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