Effect of mercerization on the mechanical and thermal response of hybrid bagasse fiber/CaCO3 reinforced polypropylene composites

Oladele, Isiaka Oluwole; Ibrahim, Ibrahim Oghie; Akinwekomi, Akeem Damilola; Talabi, Segun Isaac

doi:10.1016/j.polymertesting.2019.03.021

Cited by 49 publications

(38 citation statements)

References 21 publications

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“…In particular, natural fibers reinforced with plastic composites have high mechanical properties, and have great potential in the application of packaging materials [1]. Previous works have confirmed that blending plastic with appropriate sisal, bagasse, bamboo flour (BF), flax, wood powder, or other cellulose fibers could significantly reinforce the mechanical properties of the plastic composite, especially the bending modulus and impact strength [2][3][4][5][6][7]. The physical properties, such as length, diameter, growth cycle, and cost, of the most-used natural fibers are listed in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Effect of Diisocyanates as Compatibilizer on the Properties of BF/PBAT Composites by In Situ Reactive Compatibilization, Crosslinking and Chain Extension

et al. 2020

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Due to the hydrophobic nature of poly (butylene terephthalate) (PBAT), and the hydrophilic nature of bamboo flour (BF), a BF/PBAT (50/50) blend shows low mechanical properties, and especially shows poor impact strength. In order to increase the interfacial adhesion between BF and PBAT, diisocyanate was used as a reactive compatibilizer to modify bamboo powder. A series of BF/PBAT composites were prepared by the method of mixing and melting in an internal mixer. After adding reactive compatibilizer 4,4 -methylenebis(phenyl isocyanate) (MDI), BF/PBAT (50/50) composites with high mechanical properties were successfully prepared. The tensile strength, elongation at break, and impact strength of the BF/MDI-2/PBAT composite with 2 wt % MDI content were increased by 1.9, 6.8, and 4.3 times respectively over the BF/PBAT blend without the added MDI. The higher toughening effect of MDI in BF/PBAT composites can be mainly ascribed to the improved interface bonding between BF and PBAT. The isocyanate group of MDI can react with the hydroxyl group on the BF surface and in situ formation of the carbamate group on the BF surface. The residual isocyanate can then react with the hydroxyl group of PBAT and form carbamate groups. The rheological behaviors demonstrate that addition of appropriate amounts of MDI, 1 wt % and 2 wt %, can promote the flowability of the molten BF/PBAT composites due to the decrease in interparticle interaction between bamboo powder and the increase in the thermal motion of the molecules.Bamboo fiber is composed of cellulose, lignin, hemicellulose, and other macromolecules, which have strong rigidity. In addition, it has the advantages of antibacterial, low cost, and high recovery rate. More significantly, bamboo flour can not only be used as a reinforcement, but also can act as a nucleation agent to improve the crystallization performance and crystallization rate of the composite [3,7-9].

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Section: Introductionmentioning

confidence: 99%

Effect of Diisocyanates as Compatibilizer on the Properties of BF/PBAT Composites by In Situ Reactive Compatibilization, Crosslinking and Chain Extension

et al. 2020

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“…Ebu et al [35] reported increase in the flexural strength of PPmica composites with increments in the mica content of the composite in the effect of mica reinforcement on the mechanical properties of PP. Ghali et al [36], Zhang et al [37] and Oladele et al [38], respectively reported similar enhanced flexural properties. After, investigating the mechanical, thermal, morphology and decay properties of hazel nut husk filled polymer composites, Tufan et al [39] discovered that the addition of a coupling agent significantly improved the values of the flexural and tensile moduli as well as that of the elongation at break.…”

Section: Flexural Strengthmentioning

confidence: 79%

Mechanical, Morphological Properties and Chemical Resistance of Filled Rattan Wastes Powder Epoxy Composites

Obiukwu

Igboekwe

2020

IJEE

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Fibre content effects on mechanical, surface morphology and chemical resistance of epoxy/rattan fibre composite was investigated. By analysis of scanning electron microscopy (SEM), mechanical and chemical examinations. SEM shows the rattan fibre had improved facial adhesion and a fairly uniform distribution of fibre in the matrix. Similar result were observed for flexural and tensile strengths with gradual increase in strengths with filler loading. Mechanical properties improved with increasing fibre loading, peaking at 25 wt % content. The best tensile and impact strength was obtained at 25 wt % filler with a value of 19.271Mpa and 18.876 J/m. There was a 4.48 % increase in hardness obtained at 15 wt %, 6.55 % increase in hardness at 20 wt. %, while 7.46 % increase in hardness was obtained at 25 wt % representing the highest hardness for individual fibre wt % considered. The flexural strength obtained for the samples presented increased as fibre content increased, while the best flexural strength result of 27.542 Mpa was observed at 25 wt. % fibre. The rattan-epoxy composite's weight reduced greatly after testing in 10% HCl, NaOCl, and NaOH solution. Theresult for immersing in H2O2 solution showed negligible effects and hence, a small reduction in weight loss.

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“…A polypropylene (PP) composite reinforced with SB showed greater stiffness compared to the raw PP material [21] . The use of SB and CaCO 3 as fillers in a PP matrix improved its mechanical properties and increased its thermal stability [22] . SB can also improve the mechanical and thermal properties of poly(lactic acid) [23] .…”

Section: Sugarcanementioning

confidence: 99%

“…[21] The use of SB and CaCO 3 as fillers in a PP matrix improved its mechanical properties and increased its thermal stability. [22] SB can also improve the mechanical and thermal properties of poly(lactic acid). [23] Furthermore, blends of collagen, natural rubber and SB can be used as a biodegradable material to promote urea release during the fertilisation process, with the material degrading almost entirely after only 30 days.…”

Section: Sugarcane Bagasse In Compositesmentioning

confidence: 99%

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Opportunities for the Use of Brazilian Biomass to Produce Renewable Chemicals and Materials

et al. 2020

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This Review highlights the principal crops of Brazil and how their harvest waste can be used in the chemicals and materials industries. The Review covers various plants; with grains, fruits, trees and nuts all being discussed. Native and adopted plants are included and studies on using these plants as a source of chemicals and materials for industrial applications, polymer synthesis, medicinal use and in chemical research are discussed. The main aim of the Review is to highlight the principal Brazilian agricultural resources; such as sugarcane, oranges and soybean, as well as secondary resources, such as andiroba brazil nut, buriti and others, which should be explored further for scientific and technological applications. Furthermore, vegetable oils, carbohydrates (starch, cellulose, hemicellulose, lignocellulose and pectin), flavones and essential oils are described as well as their potential applications.

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Effect of mercerization on the mechanical and thermal response of hybrid bagasse fiber/CaCO3 reinforced polypropylene composites

Cited by 49 publications

References 21 publications

Effect of Diisocyanates as Compatibilizer on the Properties of BF/PBAT Composites by In Situ Reactive Compatibilization, Crosslinking and Chain Extension

Effect of Diisocyanates as Compatibilizer on the Properties of BF/PBAT Composites by In Situ Reactive Compatibilization, Crosslinking and Chain Extension

Mechanical, Morphological Properties and Chemical Resistance of Filled Rattan Wastes Powder Epoxy Composites

Opportunities for the Use of Brazilian Biomass to Produce Renewable Chemicals and Materials

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