2021
DOI: 10.1007/s40964-021-00226-x
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Enhanced compatibility between coconut fibers/PP via chemical modification for 3D printing

Abstract: Aiming to produce high-quality bio-based 3D printed products, in this work, coconut fibers were chemical modified using caprolactone. Fourier-transform infrared spectroscopy (FTIR) and nuclear magnetic reasonance (NMR) confirmed the grafting of the hydroxyl groups present on the surface of the fibers with caprolactone units. Furthermore, from contact angle (CA) analyses, the higher hydrophobicity of fibers after chemical treatment was confirmed, which improved its affinity with PP. The enhanced filler/matrix c… Show more

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Cited by 14 publications
(8 citation statements)
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“…Generally, the rheological behavior of a polymer material can be obtained using a rheometer; some key factors affecting the flowability of the melt, such as the complex viscosity as well as the relationship between the viscosity and the shear rate, can be obtained intuitively [ 39 , 40 ]. As a simplification method, the processability of a polymer material for 3D printing could also be represented with its MFI [ 41 ], which was directly dependent on the structural and molecular arrangement of the polymer [ 42 ] and can be used to describe the uniformity of the flow rate of thermoplastic materials [ 43 ]. For the FDM process, the MFI of a polymer was not only important in defining the printing parameters, but it also affected the bonding between printed layers.…”
Section: Resultsmentioning
confidence: 99%
“…Generally, the rheological behavior of a polymer material can be obtained using a rheometer; some key factors affecting the flowability of the melt, such as the complex viscosity as well as the relationship between the viscosity and the shear rate, can be obtained intuitively [ 39 , 40 ]. As a simplification method, the processability of a polymer material for 3D printing could also be represented with its MFI [ 41 ], which was directly dependent on the structural and molecular arrangement of the polymer [ 42 ] and can be used to describe the uniformity of the flow rate of thermoplastic materials [ 43 ]. For the FDM process, the MFI of a polymer was not only important in defining the printing parameters, but it also affected the bonding between printed layers.…”
Section: Resultsmentioning
confidence: 99%
“…The role of the MEX process in promoting a more sustainable and CE is, therefore, already gaining momentum. For instance, the FFF technology has recently been used to recycle various bio-based waste materials derived from industrial activities, such as wood and timber waste (Filgueira et al , 2018; Pringle et al , 2018), herbaceous plants such as corn, rice, hemp, cork and cellulose (Biswas et al , 2017; Coppola et al , 1981; Gama et al , 2021; Bahçegül et al , 2020), as well as mussel and eggshell (Sauerwein and Doubrovski, 2018; Hega et al , 2023). Bio-based waste and scraps are fillers in thermoplastic polymers such as polylactic acid, PP, copolyester elastomers, acrylonitrile butadiene styrene (ABS) and thermoplastic polyurethane (TPU) (Romani et al , 2023).…”
Section: Introductionmentioning
confidence: 99%
“…Carbon fibres (short, continuous), single-walled and multi-walled carbon nanotubes (SWCNTs/MWCNTs), graphene, and carbon black have been popular materials to study. Other choices, such as natural fibres (jute, bamboo, coconut, and husk), metals, and their nanofillers, have also attracted interest [24][25][26].…”
Section: Introductionmentioning
confidence: 99%