Manufacturing and Characterization of Jute/PP Thermoplastic Commingled Composite

Souza, Bárbara Righetti de; Benedetto, Ricardo Mello Di; Hirayama, Denise; Raponi, Olívia de Andrade; Barbosa, Lorena Cristina Miranda; Ancelotti, Antônio Carlos

doi:10.1590/1980-5373-mr-2017-0104

Cited by 26 publications

(19 citation statements)

References 18 publications

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“…Studies regarding the properties and applications of composite materials obtained using hemp fibres as reinforcing agents and various matrices, such as polyethylene [ 23 , 24 , 25 ], cement [ 26 , 27 ], polyurethane [ 28 ], polylactic acid [ 29 ] and polypropylene [ 30 , 31 , 32 , 33 , 34 , 35 , 36 ], are presented in the literature. Different authors have highlighted compression molding, extrusion, and injection molding as technologies suitable for processing the composites [ 37 , 38 , 39 , 40 , 41 , 42 ].…”

Section: Introductionmentioning

confidence: 99%

Characterisation of Hemp Fibres Reinforced Composites Using Thermoplastic Polymers as Matrices

Stelea

Filip²,

Lisă

et al. 2022

Polymers

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Hemp fibres used as a reinforcing agent and three polymeric matrices (polypropylene, bicomponent, recycled polyester) were used to obtain composite materials by needle punching and heat pressing. The influence of the hemp/matrix ratio and the nature of the matrix on the properties of the composites were analysed. The obtained composites were characterised by physical–mechanical indices, thermal analysis (thermogravimetry (TG), differential thermogravimetry (DTG) and Differential Scanning Calorimetry (DSC)), Fourier Transform Infrared Spectroscopy (FTIR-ATR) analysis, Scanning Electron Microscopy (SEM) and Chromatic measurements. The mechanical properties of composites are influenced by both the hemp/matrix ratio and the nature of the matrix. The thermal stability of composites decreased as the amount of hemp increased (for the same mass losses, the decomposition temperature decreased significantly for composites containing a quantity of hemp greater than 50%). Regarding the nature of the matrix, for the same mass loss, the highest decomposition temperature was presented by the composites containing recycled polyester as matrix, and the lowest one was presented by composites containing polypropylene fibres as matrix. The FTIR and SEM analyses highlight the changes that occurred in the structure of the composite, changes determined both by the amount of hemp in the composite and by the nature of the matrix.

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Section: Introductionmentioning

confidence: 99%

Characterisation of Hemp Fibres Reinforced Composites Using Thermoplastic Polymers as Matrices

Stelea

Filip²,

Lisă

et al. 2022

Polymers

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“…1 Poly(eugenol-co-methyl methacrylate)/polypropylene blend synthesis demonstration Fig. 2 FTIR spectrum of poly(eugenol-co-methyl methacrylate) copolymer synthesis spectrum support the successful synthesis of the structure [35].…”

Section: Resultsmentioning

confidence: 75%

Preparation of poly(eugenol-co-methyl methacrylate)/polypropylene blend by creative route approach: structural and thermal characterization

Saltan

2021

Iran Polym J

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Poly(eugenol-co-methylmethacrylate)/polypropylene blends were successfully prepared using methyl methacrylate (MMA), eugenol (Eg) and polypropylene (PP). First, poly(eugenol-co-methylmethacrylate) (poly(Eg-co-MMA)) was synthesized by photopolymerizaiton in one step at ambient temperature and without solvent. Benzophenone and triethylamine were used as photoinitiator and hydrogen donor, respectively. The second stage is the blending approach between polypropylene and poly(Eg-co-MMA) copolymer. The anti-bacterial test was carried out using the agar well diffusion. Escherichia coli, Staphylococcus aureus bacterial species were tested using Clinical and Laboratory Standards Institute (CLSI) Disk-Diffusion method in antibacterial analysis. As a result of these studies, the blend polymers (PEgMMA 1:1 ) 30 -PP and (PEgMMA 1:1 ) 50 -PP showed activity against E. coli Gram-negative bacteria. Zone diameters are 7 ± 0.00 mm and 5.25 ± 0.25 mm for (PEgMMA1:1) 30 -PP and (PEgMMA1:1) 50 -PP, respectively. No activity has been observed against S. aureus bacteria. In antimicrobial tests, it was determined that the polymers did not show a high antibacterial property as expected. Structural characterization and thermal properties of the synthesized terpolymers were performed by FTIR (Fourier-transform infrared spectroscopy), 1 H NMR (nuclear magnetic resonance spectroscopy), TG-DTG (thermogravimetry-derivative thermogravimetry). SEM (scanning electron microscope) was used for surface analysis. The thermal stability of the synthesized blend polymers was higher than their homopolymers. Structural characterizations and surface analyzes support the successful performance of the synthesis.

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“…The bands at 2950 cm -1 , 2917 cm -1 , 2868 cm -1 , 2837 cm -1 are assigned to the CH2 asymmetrical stretching vibration, CH3 asymmetrical stretching vibration, CH3 symmetrical stretching vibration and symmetrical CH2 stretching vibration, respectively. The bands at 1456 cm -1 and 1375 cm -1 are attributed to the deformation vibration asymmetrical and deformation vibration symmetrical of the CH3 (Souza et al, 2017). These bands suffer an increase of the intensity during the exposure.…”

Section: Ftirmentioning

confidence: 96%

Protocol for identification and assessment of natural and synthetic textile fibers

Secareanu¹,

Săndulache²,

Mitran³

et al. 2020

Proceedings of the 8th International Conference on Advanced Materials and Systems

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Proper identification of textile materials is essential, as people use textiles for clothing and shelter, dental and medical devices, protective firefighting, or even military clothing. There have been several developments regarding fiber identification using instruments such as Fourier transform infrared spectroscopy, Raman spectroscopy, or electron microscopy. However, the traditional methods are prevalent as they are the cheapest alternative. In the present paperwork, an accelerated weathering test was conducted on two different textile materials – cotton (natural fiber) and polypropylene (synthetic fiber). Alternating cycles of UV exposure, along with humidity and relatively high temperatures were employed for the weathering test. In order to evaluate the degradation degree of the two fibers, the results were compared and investigated using non-destructive and micro-destructive analysis techniques such as Scanning Electron Microscopy (SEM), to evaluate the surface modifications of the fibers, and colorimetry, to quantify the color changes. In addition, Fourier-Transform Infrared Spectroscopy (FT-IR) indicated the modifications of functional groups that occurred after the weathering test. A non-destructive technique – X-Ray Diffraction (XRD) was also performed to obtain information about the crystalline structure. The obtained information will be used for cultural heritage studies.

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Manufacturing and Characterization of Jute/PP Thermoplastic Commingled Composite

Cited by 26 publications

References 18 publications

Characterisation of Hemp Fibres Reinforced Composites Using Thermoplastic Polymers as Matrices

Characterisation of Hemp Fibres Reinforced Composites Using Thermoplastic Polymers as Matrices

Preparation of poly(eugenol-co-methyl methacrylate)/polypropylene blend by creative route approach: structural and thermal characterization

Protocol for identification and assessment of natural and synthetic textile fibers

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