Physical and Mechanical Properties of Natural Fibers Filled Polypropylene Composites and Its Recycle

Karina, Myrtha; Onggo, Holia; Syampurwadi, Anung

doi:10.3923/jbs.2007.393.396

Cited by 58 publications

(26 citation statements)

References 6 publications

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“…These values increased linearly as the addition of lignin increased. These results are similar to other natural fiber additives as enforcing agents for composites (Karina et al 2007;Khalil et al 2007). The addition of 10% lignin to PP or RPP resulted in composites with minimal water absorption and thickness swelling when compared to the other composites (Table 2).…”

Section: Water Absorption and Thickness Swellingsupporting

confidence: 77%

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Physical and Mechanical Properties of Recycled Polypropylene Composites Reinforced with Rice Straw Lignin

Karina¹,

Syampurwadi²,

Satoto³

et al. 2017

BioResources

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Recycled polypropylene (RPP) and lignin represent by-products produced in enormous amounts worldwide that remain underutilized. This study used rice straw lignin as a filler at various concentrations (0% to 70% w/w) in RPP and virgin polypropylene (PP) composites by melt blending. Structural and morphological alterations of lignin were analyzed by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM), respectively. Mechanical properties were evaluated using a universal testing machine (UTM). Results revealed that the tensile strength of the composites decreased as the lignin content increased, presumably due to the low of compatibility degree of lignin and MAPP, as well as the crack formation due to the agglomeration of lignin. However, composites with lignin as a filler showed higher moduli and water absorption capacities, as well as thickness swelling; using lignin as a filler caused a drastic reduction of the elongation at break values. The results indicated that the physical and mechanical properties of RPP and its virgin PP composites had no substantial differences. This indicated that virgin PP could be substituted by recycled polypropylene (RPP) for composite applications with the addition of MAPP.

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Section: Water Absorption and Thickness Swellingsupporting

confidence: 77%

“…MAPP was added into the molten PP or RPP for 2 min. The concentration of MAPP was 2.5% with respect to the weight of RPP or PP used, which was based on the previous works of Karina et al (2007). The PP and RPP were then thoroughly mixed with various lignin amounts (0% to 70%).…”

Section: Composites Compoundingmentioning

confidence: 99%

Physical and Mechanical Properties of Recycled Polypropylene Composites Reinforced with Rice Straw Lignin

Karina¹,

Syampurwadi²,

Satoto³

et al. 2017

BioResources

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“…Mechanical properties of the natural fibers especially flax, abaca, kenaf, ramie, hemp, jute, sisal, bamboo, and bagasse are very good and strength and modulus are higher than synthetic fiber. [42] Table 1 shows the type and mechanical properties of the common natural fibers. It is shown in the table that flax and kevlar 49 have higher tensile strength than other natural fibers and another things we can observed from the table that natural fibers have low density and reasonable Young's modulus.…”

Section: Physical and Mechanical Properties Of Natural Fiber Compositesmentioning

confidence: 99%

Natural fiber reinforced polymer composites: history, types, advantages, and applications

et al. 2019

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Nowadays, the use of natural fiber reinforced polymer-based composites is gradually increasing day by day for their many advantages for civil engineering construction applications. Due to their many advantages for polymer-based composite materials are widely used in civil construction, automobiles, aerospace, and many others. Natural fibers such as jute, kenaf, pineapple, sugarcane, hemp, oil palm, flax, and leaf, etc. are cheap, environmentally friendly, renewable, completely and partially biodegradable which can be utilized to obtain new high-performance polymer materials. These composites are having satisfactory mechanical properties (i.e. tensile properties, flexural stress-strain behavior, fracture toughness, and fracture strength) which make them more attractive than other composites. Due to easy availability and renewability, natural fibers can be used as an alternative of synthetic fibers as a reinforcing agent. The aim of this paper is to review different natural fibers reinforced based polymer composites with mechanical characterization, applications, also shows the opportunities, challenges and future demand of natural composite material towards civil applications.

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“…Glass and sisal fibres are best known for their industrial use with plaster. Fibre glass has high mechanical strength (from 2500 to 4600 MPa tensile strength at break [6]) and good resistance to high temperatures but it has drawbacks such as high cost, high density (around 2.5), skin itching, or respiratory irritation at the first time of handling [7]. Sisal, a plant fibre, biodegradable and renewable, has been used to give the plaster reinforcement desired for everyday applications with reduced costs and risks.…”

Section: Introductionmentioning

confidence: 99%

Influence of Urena lobata Fibre Treatment on Mechanical Performance Development in Hybrid Urena lobata: Fibre/Gypsum Plaster Composites

Kengoh

Etape

Namondo

et al. 2021

Advances in Materials Science and Engineering

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Autogenous shrinkage is related to the chemistry and changes in the internal structure of the cement concrete paste on drying. This problem of drying shrinkage in early stages that occur without any moisture transfer to the surrounding environment has triggered the incorporation of fibres in the cement concrete matrix to fill the micropores and control cracking (autogenous shrinkage). This study aimed at investigating the potential use of Urena lobata (UL) fibre as microreinforcement in enhancing mechanical properties of hybrid UL-fibre/gypsum cement composites used for plasters. The fibre was harvested from the coastal region of Cameroon and treated with 0.06 M NaOH over different periods. Dispersion of treated fibre bundles in the composite (at Wt. % UL-fibre dosages of 0, 1.5, 2.5, and 3.5) was facilitated by blending with the cement paste which also helped to improve interfacial bonding between the fibre and the cement matrix. The moisture/water absorption and flexural properties within the hardened cement matrix were quantitatively assessed, and it was observed that the incorporation of treated fibre accelerated the hydration process. The test results showed an increment in compressive strength and reduction in autogenous shrinkage for the hybrid UL fibre/gypsum cement composites, while lower percentage additions (less than 2.5%) of untreated fibre appeared to have adverse effects on specimens. It was observed that properly dispersed (blended) treated UL fibres filled the fine pores in the cement matrix by providing an additional nucleation site that resulted in a denser microstructure, which in turn enhanced the strengths and limited the autogenous shrinkage.

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Physical and Mechanical Properties of Natural Fibers Filled Polypropylene Composites and Its Recycle

Cited by 58 publications

References 6 publications

Physical and Mechanical Properties of Recycled Polypropylene Composites Reinforced with Rice Straw Lignin

Physical and Mechanical Properties of Recycled Polypropylene Composites Reinforced with Rice Straw Lignin

Natural fiber reinforced polymer composites: history, types, advantages, and applications

Influence of Urena lobata Fibre Treatment on Mechanical Performance Development in Hybrid Urena lobata: Fibre/Gypsum Plaster Composites

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