Influence of coupling agent on altering the reinforcing efficiency of natural fibre-incorporated polymers – A review

Anbupalani, Manju Sri; Devi, Venkatachalam Chitra; Rathanasamy, Rajasekar

doi:10.1177/0731684420918937

Cited by 60 publications

(34 citation statements)

References 164 publications

(233 reference statements)

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“…Generally, the incompatibility between NF and polymer matrix results in low mechanical strengths of the composites when a compatibilizer is not used. [ 36 ] In addition, [ 37 ] stated that the coupling agent type, its grafting methodology with the matrix and usage ratio played an important role in performance of surface compatibility between the fiber and the polymer matrix. In this case, the enhancement in FS revealed that AKD contributed the compatibility between PLA and wood fiber.…”

Section: Resultsmentioning

confidence: 99%

Mechanical characteristics and hydrophobicity of alkyl ketene dimer compatibilized hybrid biopolymer composites

et al. 2021

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In this study, the effect of alkyl ketene dimer (AKD) on the mechanical and physical properties of natural fiber (NF) and glass fiber (GF) reinforced poly(lactic acid) (PLA) composites were investigated in detail. The hybrid PLA composites were manufactured by extrusion method followed by hot press molding. AKD was used to improve the hydrophobicity of hybrid PLA composites and compatibility of NF and PLA in the polymer matrix. The tensile and flexural tests, thickness swelling, water absorption, and contact angle measurements were accomplished for determining the performance of the hybrid PLA composites. The surface morphology of the hybrid PLA composites was also performed by scanning electron microscopy. The incorporation of AKD and NF into PLA matrix improved the mechanical strengths by 40% and above compared to those of samples without AKD. But, tensile and flexural moduli decreased as 7% and 14% of the samples with NF and AKD, respectively. Contact angle was higher for the hybrid PLA composites with AKD compared with the composites without AKD. However, the results revealed that in the presence of GF, AKD had no significant effect on overall properties of the hybrid PLA composites. In the light of the findings, AKD may have a potential usage as coupling agent in the NF filled PLA composites.

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Section: Resultsmentioning

confidence: 99%

Mechanical characteristics and hydrophobicity of alkyl ketene dimer compatibilized hybrid biopolymer composites

et al. 2021

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“…Several works have focused on the enhancement of filler/polymer adhesion by modifying molecules through chemical or physical techniques 145–147 . Mechanical interlocking can be established through proper filler surface modification.…”

Section: Framework Of High‐performance Eco‐composites Productionmentioning

confidence: 99%

Progress and challenges in sustainability, compatibility, and production of eco‐composites: A state‐of‐art review

Nassar

Alzebdeh

Pervez

et al. 2021

J of Applied Polymer Sci

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Owing to economic and environmental benefits, new generations of materials/commodities follow “from waste to wealth” strategy. Recently, there has been a huge upsurge in research on the development of eco‐composites using recycled plastic polymers and agro‐residues because the eco‐composites satisfy the stringent environment regulations and are cost‐effective. Herein, we present a detailed review on the potential use of several types of natural fillers as an efficient reinforcement for recycled plastic polymers. In particular, the characterization of different categories of eco‐composites according to their morphological, physical, thermal, and mechanical properties is extensively reviewed and their results are analyzed, compared, and highlighted. Furthermore, a framework to produce functional eco‐composites, which includes functionalization of ingredients, critical issues on microstructural parameters, processing, and fabrication methods, is outlined and supported with sufficient data from the literature. Finally, the review outlines the emerging challenges and future prospects of eco‐composites to be addressed by interested researchers to bridge the gap between research and commercialization of such a class of material. Overall, the acquired knowledge will guide researchers, scientists, and manufacturers to plan, select, and develop various forms of eco‐composites with enhanced properties and optimized production processes.

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“…The increase in impact strength is taken as an indication that the addition of PEg-MA promoted the interaction between the present phases, as seen in the torque rheometry and SEM. As a consequence, it strengthened the system interface, which is essential for the tension transfer between the phases [49,50].…”

Section: Impact Strengthmentioning

confidence: 99%

From Waste to Reuse: Manufacture of Ecological Composites Based on Biopolyethylene/wood Powder with PE-g-MA and Macaíba Oil

et al. 2021

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This work aimed to investigate the biopolyethylene (BioPE)/wood powder (WP) composites compatibilized with polyethylene-grafted maleic anhydride (PE-g-MA), using macaíba oil (OM) as a processing aid. The composites were prepared, initially, in an internal mixer and, later, the crushed akes were molded by injection. Mechanical properties (impact, tensile, exural and Shore D hardness), heat de ection temperature (HDT), Vicat softening temperature, differential scanning calorimetry (DSC), thermogravimetry (TG), water absorption, torque rheometry and scanning electron microscopy (SEM) were evaluated. The addition of 30% wood powder to the BioPE matrix increased the elastic modulus (tensile and exural), Shore D hardness and heat de ection temperature (HDT), compared to neat BioPE. These properties were improved when 10% of the PE-g-MA compatibilizer was added, compared to neat BioPE and the non-compatibilized composite. There was a signi cant reduction in the torque of the composites with the addition of macaíba oil, indicating that it improved the processability. In addition, the incorporation of macaíba oil into the composites helped to reduce water absorption, as well as to increase impact strength. SEM micrographs illustrated a greater degree of interfacial adhesion when PEg-MA and macaiba oil were added.

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Influence of coupling agent on altering the reinforcing efficiency of natural fibre-incorporated polymers – A review

Cited by 60 publications

References 164 publications

Mechanical characteristics and hydrophobicity of alkyl ketene dimer compatibilized hybrid biopolymer composites

Mechanical characteristics and hydrophobicity of alkyl ketene dimer compatibilized hybrid biopolymer composites

Progress and challenges in sustainability, compatibility, and production of eco‐composites: A state‐of‐art review

From Waste to Reuse: Manufacture of Ecological Composites Based on Biopolyethylene/wood Powder with PE-g-MA and Macaíba Oil

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