Curaua fiber reinforced high-density polyethylene composites: effect of impact modifier and fiber loading

Morais, J.; Gadioli, Renan; Paoli, Marco-Aurélio De

doi:10.1590/0104-1428.2124

Cited by 31 publications

(18 citation statements)

References 22 publications

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“…8,15 The focus of these studies continues to be the extent to which lignocellulosic fibers can be used as reinforcing fillers instead of synthetic fibers. 9,[11][12][13]15,[17][18][19][20][21][22][23][24] For example, biocomposites composed of polyvinyl alcohol reinforced with cellulose microfibers isolated from biofuel industrial waste, Jatropha curcus L. seed shell were developed. Results showed that cellulose microfibers affected onset degradation temperatures.…”

Section: Introductionmentioning

confidence: 99%

Development of fiber-reinforced polypropylene with NaOH pretreated rice and coffee husks as fillers: Mechanical and thermal properties

Yiga

Pagel

Lubwama

et al. 2019

Journal of Thermoplastic Composite Materials

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Incorporation of agricultural wastes as fillers in fiber-reinforced plastics is gaining momentum in plastics engineering research. In this study, fiber-reinforced polypropylene (PP) with rice and coffee husks as filler material were developed. The effect of alkali (sodium hydroxide) pretreatment of the husks on mechanical and thermal properties of developed PP biocomposites was observed. Filler material loading was varied from 0% to 20% for rice husks and 0% to 10% for coffee husks. A twin-screw extruder was used for compounding the PP matrix with rice and coffee husk filler materials. Tensile strengths and percentage elongation results varied from 27.4 to 37.4 MPa and 2.4% to 70.3% (unmodified coffee husks), 31.1 to 37.4 MPa and 5% to 70.3% (unmodified rice husks), 30.7 to 37.4 MPa and 5.3% to 70.3% (modified coffee husks), and 30.7 to 37.4 MPa and 4.8% to 70.3% (modified rice husks). Young’s modulus ranged between 1656 and 2247.8 MPa for biocomposite PP samples with unmodified filler material. Young’s modulus ranged between 1740 and 2160 MPa after alkali treatment of the filler material. Charpy impact strengths ranged from 1.2 to 4 kJ/m2 and 3.1 to 19.6 kJ/m2 for samples containing unmodified and modified filler material, respectively. Thermogravimetric analysis showed that an increase in filler content resulted into delayed weight loss at high degradation temperatures. The results suggest that these developed fiber-reinforced plastics can be used in applications requiring high thermal stability and good mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Development of fiber-reinforced polypropylene with NaOH pretreated rice and coffee husks as fillers: Mechanical and thermal properties

Yiga

Pagel

Lubwama

et al. 2019

Journal of Thermoplastic Composite Materials

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“…This fiber is replacing glass and carbon fiber in some applications. Green materials gain attention for several applications from aerospace to the building industry because it combines some special features like low weight and price with good physical properties [1][2][3][4][5] .…”

Section: Introductionmentioning

confidence: 99%

The Quasi-static and Dynamic Mechanical Behavior of Epoxy Matrix Composites Reinforced with Curaua Fibers

2018

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The research of natural fiber composites is growing due to the fact that the green materials combine low weight with good mechanical properties. Curaua fiber arises as a competitive natural fiber due to its abundance, low cost and a variety of applications. In this work, different weight fractions of Curaua fiber were used in order to obtain this natural composite material. Specimens of Curaua/Epoxy composites were tested in tensile and in flexion to observe the quasi-static mechanical properties and its physical properties due to temperature variation were evaluated by Dynamic Mechanical Analyses (DMA) analyses. An increase in fiber quantity showed an increase in both the modulus and the strength, leading to a stiff and less ductile material. The results also showed an increase in the viscoelastic stiffness of the epoxy matrix by the incorporation of Curaua fibers. The interaction between Curaua fibers and epoxy matrix affects segmental mobility of the epoxy chains.

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“…The green polymers appeared with an alternative to the plastic composites produced with substances derived from petroleum, in which the vegetal fibers make possible the obtaining of a material with physical and mechanical properties equal or similar to the EPS (Morais;Gadioli;Paoli, 2016;Fernandes et al, 2017;Xie et al, 2018), but with the advantage of being biodegradable (Landim et al, 2016). Thus, the use of coconut powder in the production of composites represents an innovative technological advance, because only a portion of the coconut shell is reused, after the consumption of water, in the manufacture of pots and substrate for production of seedlings.…”

Section: Introductionmentioning

confidence: 99%

Production and mechanical evaluation of biodegradable composites by white rot fungi

et al. 2018

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The production of plastic packing grows worldwide, resulting in the accumulation of these materials in the environment due to improper disposal and problems related to degradation. Alternatively, composites produced with agricultural residues and filamentous fungi may exhibit physical and mechanical properties similar to or greater than expanded polystyrene, depending on the fungal species and substrate of the cultivation. In the literature, no reports were found on the use of coconut powder and edible fungi of white rot in the mechanical properties of composites. Thus, the objective of this work was to select fungal isolates and to evaluate the period of cultivation in the mechanical resistance of composites produced in coconut powder supplemented with wheat bran. The experimental design was completely randomized in a 5 x 3 factorial scheme corresponding to the cultivation of five edible fungal isolates (Pleurotus ostreatus: POS-W, POS-SP1, POS-98/38; Pleurotus eryngii: POS ER and Pycnoporus sanguineus: PS) and three culture periods after complete colonization of the substrate (15, 30 and 45 days), with four replications. The period of cultivation of the fungal isolates may influence in the composite mass loss and volume loss. The compressive strength and tenacity of the composite are influenced by the fungal isolate and the time of cultivation. The isolates of Pycnoporus sanguineus, Pleurotus ostreatus and P. eryngii present potential characteristics for the production of biodegradable composites.

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Curaua fiber reinforced high-density polyethylene composites: effect of impact modifier and fiber loading

Cited by 31 publications

References 22 publications

Development of fiber-reinforced polypropylene with NaOH pretreated rice and coffee husks as fillers: Mechanical and thermal properties

Development of fiber-reinforced polypropylene with NaOH pretreated rice and coffee husks as fillers: Mechanical and thermal properties

The Quasi-static and Dynamic Mechanical Behavior of Epoxy Matrix Composites Reinforced with Curaua Fibers

Production and mechanical evaluation of biodegradable composites by white rot fungi

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