Rheological, morphological and mechanical properties of flax fiber polypropylene composites: influence of compatibilizers

Sojoudiasli, Helia; Heuzey, Marie‐Claude; Carreau, Pierre J.

doi:10.1007/s10570-014-0375-3

Cited by 34 publications

(35 citation statements)

References 48 publications

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“…As expected, by increasing the content of CNCs the tensile strain at break decreases. However the effect is much less dramatic than in the case of flax fibers , as illustrated in the next section. Also the samples processed at 175°C have lower strain at break in comparison with composites processed at 210°C, probably because of the poorer dispersion of the particles when mixed at lower temperature (see Fig.…”

Section: Resultsmentioning

confidence: 85%

“… Thermogravimetry results of as‐received flax fibers and CNCs in nitrogen. [Color figure can be viewed at http://wileyonlinelibrary.com]…”

Section: Resultsmentioning

confidence: 99%

“…To assess the performance of the PP‐CNC composites, a comparison is made for the properties of PP filled with other particles. Figure compares the mechanical properties of different composites containing CNCs with composites containing flax fibers from our previous work and nanoclay Cloisite 20A from the literature . The normalized values have been obtained by dividing the modulus, tensile strength and tensile strain at break by the respective values for the unfilled matrices.…”

Section: Resultsmentioning

confidence: 99%

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Mechanical and morphological properties of cellulose nanocrystal‐polypropylene composites

2017

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In this work, the rheological, mechanical, morphological, and thermal properties of cellulose nanocrystal (CNC)‐polypropylene (PP) composites prepared in the molten state were investigated. All samples contained a maleated PP used as combatibilizer. Degradation of the PP in the presence of CNCs at high processing temperature was shown to have a significant effect on the rheological behavior. For PPs with two different molecular weights and prepared at different temperatures, the tensile modulus of composites containing 2 wt% CNC was improved by about 30% and the tensile strength was increased up to 16%, in comparison with the unfilled matrices. The tensile strain at break of composites decreased by 17% up to 75% with respect to the matrix, depending on the processing conditions and PP used. Preparing the low molecular weight PP composites via twin‐screw extrusion was shown to be more efficient than using an internal batch mixer. The tensile modulus of the PP/CNC composites could be fairly well described by a model proposed by Nielsen based on the Halpin‐Tsai equation. Finally, properties of the PP/CNC composites have been compared to those of a PP reinforced with flax fibers and a PP filled with nanoclay. POLYM. COMPOS., 39:3605–3617, 2018. © 2017 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 85%

“… Thermogravimetry results of as‐received flax fibers and CNCs in nitrogen. [Color figure can be viewed at http://wileyonlinelibrary.com]…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Mechanical and morphological properties of cellulose nanocrystal‐polypropylene composites

2017

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“…Arias et al [31] also reported no significant improvement of the Young modulus in tensile tests and storage modulus in DMTA as well as a reduced tensile strength for PEO compatibilized PLA/CNC composites compared to uncompatibilized systems. However, Sojoudiasli et al [32] showed enhanced tensile properties for PP-g-MA and PP-g-AA compatibilized polypropylene/flax fiber composites. They concluded that the efficiency of the employed compatibilizers depended on their melt flow index (MFI) and grafted maleic anhydride or acrylic acid content.…”

Section: Introductionmentioning

confidence: 99%

Properties of polypropylene and polypropylene/poly(ethylene-co-vinyl alcohol) blend/CNC nanocomposites

Bagheriasl

Carreau

Dubois

et al. 2015

Composites Science and Technology

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“…As a renewable and biodegradable natural resource, flax fiber is currently being widely used in bio-composite applications as a reinforcement material (Hrabalova et al 2011;Sojoudiasli et al 2014) due to its superior physical-mechanical properties. Flax fibers are obtained from the phloem part of the stem between the bark and inner core tissues and exist in the form of fiber bundles cemented and surrounded mainly by pectin, such that the fibers must be separated from the non-fiber components through a process called retting or, sometimes degumming.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Flax Water Retting of Different Durations in Laboratory Condition and Evaluation of Its Fiber Properties

Ruan¹,

Raghavan²,

Gariépy³

et al. 2015

BioResources

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Water retting is a traditional retting method that enables the low-cost production of bast fibers. This study investigated the retting of flax straws by distilled water for three different durations at room temperature in laboratory condition. The retting quality was evaluated in terms of the weight loss and degumming rate together with the fiber properties, which included color, linear density, and tensile properties. The degumming rate was defined as the percentage change in pectin content of phloem regions from the raw flax to water-retted flax. It was found that the dissolution of pectin and other contaminating materials during the beginning retting stage must have played an important role in pectin (content) and weight loss besides pectin degradation, and water retting gradually improved both the apparel properties, such as whiteness and fineness, and the mechanical properties of the fibers. Given the results, a water retting duration of six days should be sufficient to provide sound retting efficiency and reasonable fiber properties.

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Rheological, morphological and mechanical properties of flax fiber polypropylene composites: influence of compatibilizers

Cited by 34 publications

References 48 publications

Mechanical and morphological properties of cellulose nanocrystal‐polypropylene composites

Mechanical and morphological properties of cellulose nanocrystal‐polypropylene composites

Properties of polypropylene and polypropylene/poly(ethylene-co-vinyl alcohol) blend/CNC nanocomposites

Characterization of Flax Water Retting of Different Durations in Laboratory Condition and Evaluation of Its Fiber Properties

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