Influence of processing parameters on the impact strength of biocomposites: A statistical approach

Muthuraj, Rajendran; Misra, Manjusri; Defersha, Fantahun M.; Mohanty, Amar K.

doi:10.1016/j.compositesa.2015.09.003

Cited by 70 publications

(54 citation statements)

References 31 publications

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“…4 It is used as received without any further purication and/or modication. Commercially available PBAT (Biocosafe 2003F) and PBS (Biocosafe 1903) granules were procured from Xinfu Pharmaceutical Co., Ltd, China.…”

Section: Methodsmentioning

confidence: 99%

“…4 The PBS mechanical properties were considerably improved by blending with commercially available biodegradable polymer i.e., poly(butylene adipate-coterephthalate) (PBAT). [3][4][5] However, these polymers are currently having poor cost-performance as compared to conventional polymers. This poor cost performance is due to limited production of these biodegradable polymers.…”

Section: Introductionmentioning

confidence: 99%

“…Although, only a few studies have investigated the miscanthus ber reinforced biodegradable polymer composites. 4,8,9,17,18 In our previous study 18 we have used MAH graed PBS compatibilizer to improve the compatibility between PBS matrix and miscanthus ber. Due to the increased compatibility between the matrix and ber, it was found that the mechanical performances of the resulting composites were superior compared to the uncompatibilized counterparts.…”

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confidence: 99%

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Biocomposite consisting of miscanthus fiber and biodegradable binary blend matrix: compatibilization and performance evaluation

2017

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Biocomposites were fabricated from miscanthus fibers and a blend composed of poly(butylene succinate) (PBS)/poly(butylene adipate-co-terephthalate) (PBAT) matrix by extrusion and injection molding. Due to the reinforcing effect of miscanthus fibers, the tensile, flexural, and storage modulus of the composites were increased with increasing fiber content from 30 to 50 wt%. Young's modulus of the composite was evaluated by parallel, series, Hirsch and Halpin-Tsai models. It was found that the Hirsch model has good agreement with the experimental modulus of the composites. There was a sharp reduction in tensile strength and impact strength after the incorporation of miscanthus fibers into PBS/PBAT blend matrix. These reductions were due to the incompatibility between the fibers and the matrix. Therefore, maleic anhydride (MAH) functionalized PBS/PBAT blend was prepared and used as compatibilizer to improve the compatibility between the fibers and the matrix. The composites prepared with 5 wt% MAH functionalized compatibilizer showed significant improvement in mechanical properties compared to their uncompatibilized counterparts. The morphological analysis of the composites displayed good fiber-matrix interaction in the presence of compatibilizer whereas composites showed poor interface between the phases without compatibilizer. The shear thinning behavior of the composites was increased compared to neat PBS/PBAT blend. The increased shear thinning behavior of the composite was attributed to the reduced polymer chain entanglement in the presence of fibers. The miscanthus fibers reinforced PBS/PBAT composites can offer significant benefit in terms of economic competitiveness and functional performances.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Biocomposite consisting of miscanthus fiber and biodegradable binary blend matrix: compatibilization and performance evaluation

2017

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“…After compounding, the aspect ratio for flax (28 ± 20) is twice as high for sisal (14 ± 12) ( Table 1). In further studies regarding the length reduction of natural fibres, the fibres were analysed before compounding and after injection moulding, but not after compounding [55,56]. Thus, the length reduction of the two different processing steps cannot be distinguished.…”

Section: Morphological Analysis Via Fibreshapementioning

confidence: 99%

Fibre Length Reduction in Natural Fibre-Reinforced Polymers during Compounding and Injection Moulding—Experiments Versus Numerical Prediction of Fibre Breakage

et al. 2018

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Abstract:To establish injection-moulded, natural fibre-reinforced polymers in the automotive industry, numerical simulations are important. To include the breakage behaviour of natural fibres in simulations, a profound understanding is necessary. In this study, the length and width reduction of flax and sisal fibre bundles were analysed experimentally during compounding and injection moulding. Further an optical analysis of the fibre breakage behaviour was performed via scanning electron microscopy and during fibre tensile testing with an ultra-high-speed camera. The fibre breakage of flax and sisal during injection moulding was modelled using a micromechanical model. The experimental and simulative results consistently show that during injection moulding the fibre length is not reduced further; the fibre length was already significantly reduced during compounding. For the mechanical properties of a fibre-reinforced composite it is important to overachieve the critical fibre length in the injection moulded component. The micromechanical model could be used to predict the necessary fibre length in the granules.

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“…Furthermore, the influence of processing variables on the impact properties of the poly(butylene succinate) PBS/poly(butylene adipate-coterephthalate) PBAT/miscanthus biocomposites using a full factorial experimental design was studied by Mathuraj and al. [8]. The author demonstrates that the fiber length has the most important influence on the impact strength of the biocomposites.…”

Section: Introductionmentioning

confidence: 99%

Influence of Processing Parameters on the Tensile Strength of PA-W/mLLDPE Composite Films Produced by Blown Film Extrusion

Zgheib

Tahan

Seif³

et al. 2018

MATEC Web Conf.

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-Extrusion blown films from Polyamide waste/metallocene linear low-density polyethylene (PA-W/mLLDPE) blend based matrix system and calcium carbonates particles were successfully produced and characterized. Also, the effect of the extruder temperature used during twin-screw compounding, the coupling agent loading and PA loading on the mechanical properties of the obtained films were studied. The key aspect of the present study was in investigating the optimal combination of factors by using Design of Experiment (DOE) approach. The responses measured were the tensile strength in the machine direction (MD) and the tensile strength in the transverse direction (TD). Among the selected processing parameters, the coupling agent and the interaction between the coupling agent and the PA loading have the most important influence on the tensile strength.

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Influence of processing parameters on the impact strength of biocomposites: A statistical approach

Cited by 70 publications

References 31 publications

Biocomposite consisting of miscanthus fiber and biodegradable binary blend matrix: compatibilization and performance evaluation

Biocomposite consisting of miscanthus fiber and biodegradable binary blend matrix: compatibilization and performance evaluation

Fibre Length Reduction in Natural Fibre-Reinforced Polymers during Compounding and Injection Moulding—Experiments Versus Numerical Prediction of Fibre Breakage

Influence of Processing Parameters on the Tensile Strength of PA-W/mLLDPE Composite Films Produced by Blown Film Extrusion

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