Effect of surface treatment on the morphology of sisal fibers in sisal/polylactic acid composites

Jiang, Aiju; Xi, Jianling; Wu, Hongwu

doi:10.1177/0731684412441867

Cited by 31 publications

(19 citation statements)

References 16 publications

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“…There are several engineering and environmental reasons why the addition of natural fillers into polymer matrix is attractive for this industry. The high strength and stiffness and also biodegradability of the fibers, combined with the sustainability trend, has led the industries to seek polymer composites reinforced with natural fillers [140][141][142]. Another important point to consider is the fuel-efficiency of lightweight cars, trucks, buses, aircraft, etc., made of polymer composites reinforced with natural fillers.…”

Section: Polymer Composites Reinforced With Natural Fillers In the Aumentioning

confidence: 99%

Polymer Composites Reinforced with Natural Fibers and Nanocellulose in the Automotive Industry: A Short Review

Ferreira

Pinheiro

Souza³

et al. 2019

J. Compos. Sci.

168

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Environmental concerns and cost reduction have encouraged the use of natural fillers as reinforcement in polymer composites. Currently, a wide variety of reinforcement, such as natural fibers and nanocellulose, are used for this purpose. Composite materials with natural fillers have not only met the environmental appeal, but also contribute to developing low-density materials with improved properties. The production of natural fillers is unlimited around the world, and many species are still to be discovered. Their processing is considered beneficial since the natural fillers do not cause corrosion or great wear of the equipment. For these reasons, polymer reinforced with natural fillers has been considered a good alternative for obtaining ecofriendly materials for several applications, including the automotive industry. This review explores the use of natural fillers (natural fibers, cellulose nanocrystals, and nanofibrillated cellulose) as reinforcement in polymer composites for the automotive industry.

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Section: Polymer Composites Reinforced With Natural Fillers In the Aumentioning

confidence: 99%

Polymer Composites Reinforced with Natural Fibers and Nanocellulose in the Automotive Industry: A Short Review

Ferreira

Pinheiro

Souza³

et al. 2019

J. Compos. Sci.

168

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“…They reported that after alkali treatment sisal fibers became more hydrophobic. Jiang et al [ 15 ] treated sisal fibers with 10 wt % NaOH solution, and they prepared treated sisal fiber/PLA composites by compression molding. They observed that composites based on treated sisal fibers did not offer good mechanical properties as a result of a poor fiber/matrix interfacial adhesion and an inadequate dispersion of fibers in PLA matrix.…”

Section: Introductionmentioning

confidence: 99%

Water Uptake Behavior and Young Modulus Prediction of Composites Based on Treated Sisal Fibers and Poly(Lactic Acid)

et al. 2016

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The main aim of this work was to study the effect of sisal fiber surface treatments on water uptake behavior of composites based on untreated and treated fibers. For this purpose, sisal fibers were treated with different chemical treatments. All surface treatments delayed the water absorption of fibers only for a short time of period. No significant differences were observed in water uptake profiles of composites based on fibers with different surface treatments. After water uptake period, tensile strength and Young modulus values of sisal fiber/poly(lactic acid) (PLA) composites were decreased. On the other hand, composites based on NaOH + silane treated fibers showed the lowest diffusion coefficient values, suggesting that this treatment seemed to be the most effective treatment to reduce water diffusion rate into the composites. Finally, Young modulus values of composites, before water uptake period, were predicted using different micromechanical models and were compared with experimental data.

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“…In terms of stress-strain curve-fitting figures of the specimens, (see Figures 7,8,9,10,11,12,13,14,15 and 16) the fitting degree in the declining stage was good and the curve shape did not change significantly. Therefore it can be simulated easily with the formula.…”

Section: Verification Of the Damage Constitutive Modelmentioning

confidence: 90%

A damage constitutive model for multi-scale polypropylene fiber concrete under compression and its numerical implementation

Liu

Yang

Liang

2015

Journal of Reinforced Plastics and Composites

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Multi-scale polypropylene fiber concrete has been put into use in the enhancement of structures such as bridges, wharfs, and road surfaces. This paper makes experimental study on the cube compressive strength of polypropylene fiber concrete with different slenderness ratios, and studies its improvement of the cubic compressive strength of concrete through mixed admixture of polypropylene fibers with different degrees of thicknesses. The experimental results show that: the cubic compressive strength of the concrete improved by 6.2-13.7% with single and mixed admixtures of polypropylene fibers. In addition, this paper builds on previous studies to establish a damage constitutive model of multi-scale polypropylene fiber concrete under compression, studies its application in the secondary development of FLAC 3D software, and makes numerical simulation based on the developed model, whose calculation results accorded with the test date very well. KeywordsMulti-scale polypropylene fiber concrete, cubic compressive strength experiment, damage constitutive model, secondary development PrefaceThe earliest study on polypropylene fiber concrete can be traced back to the early 1960s, Goldfein 1 found that an admixture of polypropylene fiber with a volume fraction of 0.5% in concrete can enhance the tenacity and shock resistance of concrete, proposed the use of polypropylene fiber as an admixture in concrete to increase explosion protection structure, for the first engineering application of polypropylene fiber concrete.Ramakrishnan 2-4 and Gopalratnam et al. 5 studied the properties of beam-shaped polypropylene fiber concrete and found that compressive strength of the polypropylene fiber concrete was only improved by a slight degree, with the increasement of fiber contents, cracks were more able to absorb energy in later stages. The tenacity index of the concrete was equal to that of normal concrete when the fiber content reached 0.949 kg/m 3 , when the fiber content increased to two times, the tenacity index was 7.8, when the fiber content increased to three times, the tenacity index was increased to 11.7. The fatigue strength improved by 15-18% compared to that of normal concrete.Song et al. 6 made experimental study on the physical and mechanical properties of the concrete with the admixture of polypropylene fiber and they found that: an admixture of polypropylene fiber improved compressive strength, rupture resistance, splitting tensile

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Effect of surface treatment on the morphology of sisal fibers in sisal/polylactic acid composites

Cited by 31 publications

References 16 publications

Polymer Composites Reinforced with Natural Fibers and Nanocellulose in the Automotive Industry: A Short Review

Polymer Composites Reinforced with Natural Fibers and Nanocellulose in the Automotive Industry: A Short Review

Water Uptake Behavior and Young Modulus Prediction of Composites Based on Treated Sisal Fibers and Poly(Lactic Acid)

A damage constitutive model for multi-scale polypropylene fiber concrete under compression and its numerical implementation

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