Effect of various chemical modifications of date palm fibers (DPFs) on the thermo-physical properties of polyvinyl chloride (PVC)–high-density polyethylene (HDPE) composites

Maou, Samira; Meghezzi, Ahmed; Grohens, Yves; Meftah, Yazid; Kervoëlen, Antoine; Magueresse, Anthony

doi:10.1016/j.indcrop.2021.113974

Cited by 39 publications

(21 citation statements)

References 73 publications

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“…[110] Date palm PVC and HDPE The chemical treatment improved the T onset and T max of the date palm reinforced composites when compared to the untreated composite and the pure matrix. [70] Basalt + Cissus quadrangularis PLA The addition of basalt fiber increased the thermal stability of the composite. [158] Jute PLA The configuration 2J5P-2 (2 layers of jute and 5 layers of PLA) of composite showed an increase in T onset and T max when compared to the other cases.…”

Section: Thermoplastic Matricesmentioning

confidence: 99%

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A Review on the Thermal Characterisation of Natural and Hybrid Fiber Composites

2021

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The thermal stability of natural fiber composites is a relevant aspect to be considered since the processing temperature plays a critical role in the manufacturing process of composites. At higher temperatures, the natural fiber components (cellulose, hemicellulose, and lignin) start to degrade and their major properties (mechanical and thermal) change. Different methods are used in the literature to determine the thermal properties of natural fiber composites as well as to help to understand and determine their suitability for a certain applications (e.g., Thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and differential mechanical thermal analysis (DMA)). Weight loss percentage, the degradation temperature, glass transition temperature (Tg), and viscoelastic properties (storage modulus, loss modulus, and the damping factor) are the most common thermal properties determined by these methods. This paper provides an overview of the recent advances made regarding the thermal properties of natural and hybrid fiber composites in thermoset and thermoplastic polymeric matrices. First, the main factors that affect the thermal properties of natural and hybrid fiber composites (fiber and matrix type, the presence of fillers, fiber content and orientation, the treatment of the fibers, and manufacturing process) are briefly presented. Further, the methods used to determine the thermal properties of natural and hybrid composites are discussed. It is concluded that thermal analysis can provide useful information for the development of new materials and the optimization of the selection process of these materials for new applications. It is crucial to ensure that the natural fibers used in the composites can withstand the heat required during the fabrication process and retain their characteristics in service.

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Section: Thermoplastic Matricesmentioning

confidence: 99%

“…The chemical treatment (H 2 O 2 + HNO 3 ) increased the T g of the date palm reinforced composite when compared to the other treatments and the pure matrix. [70] Kenaf fiber; up to 10% (w/w) of thymol PLA…”

Section: Low-density Polyethylene (Ldpe)mentioning

confidence: 99%

A Review on the Thermal Characterisation of Natural and Hybrid Fiber Composites

2021

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“…It is worth mentioning that the tensile properties of our CF-reinforced PET/PP composites are significantly higher than immiscible blends reinforced with NFs, which typically have a tensile modulus of 0.4–1.4 GPa and tensile strength of only 5–24 MPa. 44 − 46 The tensile properties of GF-reinforced immiscible polymer blends are typically around 1.5–4.0 GPa in tensile modulus and 18–75 MPa in tensile strength, 21 , 26 , 47 which are still lower than the CF-reinforced PET/PP composites prepared in this work.…”

Section: Resultsmentioning

confidence: 61%

“…The flexural properties of the CF-reinforced PET/PP composites are also higher than those reported when NFs and GFs were used as reinforcement for immiscible polymer blends. 21 , 24 , 27 , 44 , 47 …”

Section: Resultsmentioning

confidence: 99%

Mechanical Upcycling Immiscible Polyethylene Terephthalate-Polypropylene Blends with Carbon Fiber Reinforcement

Gaduan

Singkronart

Bell

et al. 2022

ACS Appl. Polym. Mater.

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Ineffective sorting of post-consumer plastics remains one of the major obstacles in the recycling of plastics. Consequently, these highly heterogeneous, mixed post-consumer plastics will end up in landfill or have to be incinerated as repurposing them directly would lead to a polymer blend with inferior quality for many end-uses. In this work, we demonstrate the use of carbon fibers (CFs) to practically upgrade the mechanical properties of mixed plastics, adding value to them. This will create a stronger demand for mixed plastics to be used in various engineering applications. Using polyethylene terephthalate (PET) and polypropylene (PP) as the model immiscible polymer blend, we showed that the incorporation of CFs increased the tensile, flexural, and single-edge notched fracture toughness of the resulting CF-reinforced PET/PP composite blends. Despite the high environmental burden associated with the production of CFs, cradle-to-grave life-cycle analysis showed that CF-reinforced PET/PP composites have a lower environmental impact than the life-cycle scenarios of “doing nothing” and repurposing immiscible PET/PP blends as it is without CF reinforcement. This can be attributed to the weight saving achieved, a direct result of their higher mechanical performance. Our work opens up opportunities for the use of mixed plastics in various higher value applications such that they can be diverted away from landfill or incineration, in line with the concept of circular economy.

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“…Blends of immiscible polymers represent different kinds of morphologies that depend on the viscosity ratio, composition, interfacial tension, elasticity ratio between the components, and process conditions [ 62 ]. Table 6 shows the difference between HDPE and PVC properties [ 63 , 64 ].…”

Section: High-density Polyethylene-poly Vinyl Chloride Blendmentioning

confidence: 99%