Research on Mechanical Behavior of the Flax/Polyactic Acid Composites

Wang, Xiaoyun; Wang, Qiuhong; Gu, Huang

doi:10.1177/0731684409355201

Cited by 15 publications

(11 citation statements)

References 13 publications

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“…This limitation can be overcome to an extent by the incorporation of fibers and fillers to neat polymer. [13][14][15] Nayak and Mohanty 8 showed that tensile strength, flexural strength, and impact strength increased by an optimum value at 15% (sisal) and 15% (glass fiber) loading in polypropylene (PP) reinforced with short sisal and glass fiber hybrid composites in the presence of 2% maleic anhydride grafted PP as a coupling agent. Huda et al 1 reported a significant improvement in the flexural and impact strengths of PLA/RNCF/talc hybrid (RNCF, recycled newspaper cellulose fibers) composites.…”

Section: Introductionmentioning

confidence: 99%

Comparative studies of mechanical and morphological properties of polylactic acid and polypropylene based natural fiber composites

Bajpai

Singh

Madaan

2012

Journal of Reinforced Plastics and Composites

157

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In this study, natural fiber reinforced polylactic acid composites have been developed by hot pressing through film-stacking procedure. The reinforcement materials used are nettle, Grewia optiva and sisal fibers in the plain weave form. For comparison purposes, polypropylene-based composites using the same fibers have also been developed. Mechanical properties (tensile, compressive, flexural, and impact properties) of all the developed composites have been evaluated through standard test procedures. It has been found that the polylactic acid based composites have superior mechanical properties and can be a potential substitute for traditional synthetic fiber composites in many application areas. Polylactic acid/sisal composite showed overall the best performance in terms of mechanical behavior. The morphological study of the fractured surface during mechanical testing has been done using scanning electron microscopy, which provides the mechanism of failure of composites during different types of mechanical loadings.

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Section: Introductionmentioning

confidence: 99%

Comparative studies of mechanical and morphological properties of polylactic acid and polypropylene based natural fiber composites

Bajpai

Singh

Madaan

2012

Journal of Reinforced Plastics and Composites

157

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“…Lamy and Baley 7 developed a model, validated by an experimental analysis on flax/epoxy laminates, to predict the stiffness of the flax fibers by varying their diameter. Xiao-Yun et al 8 realized and tested composite boards with flax fibers as the reinforcement material and polyactic acid fiber as the matrix. Flax fibers were also used by Charlet et al 9 to produce unidirectional composites by two different methods: hand impregnation and compression molding.…”

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confidence: 99%

Mechanical behavior of carbon/flax hybrid composites for structural applications

Fiore

Valenza

Bella

2012

Journal of Composite Materials

113

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In this work, the influence of an unidirectional carbon fabric layer on the mechanical performances of bidirectional flax fabric/epoxy composites used for structural applications was studied. Two different bidirectional flax fabrics were used to produce flax fabric reinforced plastic (FFRP) laminates by a vacuum bagging process: one is normally used to make curtains; the other, heavier and more expensive than the previous one, is usually used as reinforcement in composite structures. In order to realize hybrid structures starting from FFRP, an unidirectional UHM carbon fabric was used to replace a bidirectional flax fabric. Tensile and three-point bending tests were performed to evaluate the mechanical properties of the laminates investigated (both FFRP and hybrids). Furthermore, the mechanical behavior of the different bidirectional flax fabrics was analyzed by carrying out tensile tests. The experimental tests showed that the structures reinforced with flax fabrics, normally used to make curtains, present better flexural properties than that of others while, in tensile configuration, these last show higher modulus and strength. Moreover, both FFRP laminates show low mechanical properties, which do not allow their use in structural applications while the presence of one external layer of unidirectional carbon involves remarkable increase in their properties. According to this study, the hybrid composites realized could be used in several structural applications (i.e., nautical and automotive).

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“…Biodegradable behavior and high‐specific properties of PLA makes it a suitable choice to be used as matrix material in green composites. Although, neat PLA is brittle in nature, but on reinforcing it with fiber, its ductility improves thereby increasing its application spectrum …”

Section: Introductionmentioning

confidence: 99%

Static and dynamic mechanical analysis of geometrically different kenaf/PLA green composite laminates

Manral

Bajpai

2019

Polymer Composites

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The type of reinforcement used in polymer composite is one of the main governing parameters to ascertain the performance of a polymer composite. Green composites using fiber mat as reinforcement have shown promising results. In the present study, three different types of kenaf fiber mat (ie, bidirectional, unidirectional, and randomly oriented) have been incorporated with polylactic acid (PLA) for fabrication of green composite laminates through compression molding. Static mechanical characterization (tensile, flexural, and impact) of the developed composites has shown that type of fiber mat affects the mechanical performance of laminated composites markedly. Unidirectional fiber reinforced PLA composite has shown the highest tensile strength in comparison to bidirectional fiber reinforced PLA composite (BDFRPC) and randomly oriented fiber reinforced PLA composite (ROFRPC). BDFRPC has shown better flexural properties whereas ROFRPC achieved higher impact strength. Dynamic mechanical analysis of different kenaf/ PLA laminates was performed to investigate the visco-elastic nature with respect to temperature. Results show that ROFRPC has observed the best results under dynamic loading condition. The morphological study of the fractured surfaces during various testing was performed using scanning electron microscope to investigate mechanisms and reasons of failure of composites. K E Y W O R D Sdynamic mechanical analysis, green composite, kenaf fiber mats, mechanical characterization, polylactic acid

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Research on Mechanical Behavior of the Flax/Polyactic Acid Composites

Cited by 15 publications

References 13 publications

Comparative studies of mechanical and morphological properties of polylactic acid and polypropylene based natural fiber composites

Comparative studies of mechanical and morphological properties of polylactic acid and polypropylene based natural fiber composites

Mechanical behavior of carbon/flax hybrid composites for structural applications

Static and dynamic mechanical analysis of geometrically different kenaf/PLA green composite laminates

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