Studies on the properties of rice-husk-filled-PP composites: effect of maleated PP

Rosa, Simone Maria Leal; Santos, Evelise Fonseca dos; Ferreira, Carlos Arthur; Nachtigall, Sônia Marlí Bohrz

doi:10.1590/s1516-14392009000300014

Cited by 103 publications

(64 citation statements)

References 20 publications

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“…The decrease in percentage of impact strength from 10% weight fiber to 20% weight fiber was 31.98% while the decrease from 20% to 30% weight fiber was 48.45%. The high particle orientation that hinders the chain movement during deformation was due to the fair distribution of fiber in the polyethylene matrix has led to the increasing of the stiffness and the modulus of the composite [27]. Moreover, the increase in the strength and modulus of the MLF composites indicates the increasing in the rigidity of polyethylene due to the mobility limitation in polyethylene matrix that contains MLF [27].…”

Section: Resultsmentioning

confidence: 99%

“…The high particle orientation that hinders the chain movement during deformation was due to the fair distribution of fiber in the polyethylene matrix has led to the increasing of the stiffness and the modulus of the composite [27]. Moreover, the increase in the strength and modulus of the MLF composites indicates the increasing in the rigidity of polyethylene due to the mobility limitation in polyethylene matrix that contains MLF [27]. When the modulus was increased with the increase of fiber loading of MLF, the stress transfer across the polymer particles interface prevented the movement around each particle led to overall increase in modulus and strength [23].…”

Section: Resultsmentioning

confidence: 99%

“…It was obvious that the required energy to pull the shot fiber from the matrix was less that led to dissipation of energy [31] and advancing the crack propagation of the sample thus making the materials to be brittle [27]. Fiber length also affected the properties of MLF reinforced polyethylene where MLF with longer length could withstand a high load and tolerate more stress than shorter ones led to high flexural strength and modulus [33].…”

Section: Effect Of Different Fiber Length Of Mlf-ldpe Compositesmentioning

confidence: 99%

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The performance of mengkuang leaf fiber reinforced low density polyethylene composites

Halim¹,

Siregar²,

Mathivanan³

et al. 2018

J. MECH. ENG. SCI.

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The performance of mengkuang leaf fiber (MLF) reinforced low density polyethylene (LDPE) composites with different fiber volume and different mesh sizes were studied. The fibre weight percentage used in the research were 10%, 20%, and 30% and for different fiber size were <0.5 mm, 0.5-1 mm, and 1-2 mm. The extrusion and hot compression molding were used to fabricate the specimen testing. The mechanical testing performed were impact and flexural test which follows the ASTM standards D790-10 and Izod D256. It was observed that by increasing the fiber volume and fiber size, the flexural strength and the flexural modulus were increased. However the impact strength shows different results for fiber length and fibre content where the impact strength increases with fibre length but decreases with the increase of fiber content. It can be concluded that the 30% fibre content is the optimum fibre loading for the MLF-LDPE composite with the flexural strength of 12.31 MPa, flexural modulus of 378.88 MPa and impact strength of 589.86 J/m whereby the 1.0-2.0 mm fibre length is the best fibre size for the MLF-LDPE composite with the flexural strength of 12.86 MPa, flexural modulus of 267.76 MPa and impact strength of 1511.57 J/m. In future studies fibres should undergo surface modification to increase the available surface area for reaction to increase the strength of the composite by better mechanical interlocking.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Effect Of Different Fiber Length Of Mlf-ldpe Compositesmentioning

confidence: 99%

See 1 more Smart Citation

The performance of mengkuang leaf fiber reinforced low density polyethylene composites

Halim¹,

Siregar²,

Mathivanan³

et al. 2018

J. MECH. ENG. SCI.

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“…These coupling agents may reduce interfacial tension and improve adhesion between the phases, influencing the final properties of the composite [5][6][7][8] . The most commonly used coupling agent for PP composites is maleic anhydride functionalized polypropylene (MAPP), which possesses polar and nonpolar structures that may increase chemical interaction between PP and natural fibers in general 9 . Therefore, the main objective of this work is to investigate the effect of MAPP in the compatibilization of recovered polypropylene with piassava fiber for the future development of elements for the construction and architecture sectors.…”

Section: Introductionmentioning

confidence: 99%

Study of Composites Produced with Recovered Polypropylene and Piassava Fiber

et al. 2016

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This work addresses the use of piassava fibers (PF) as reinforcement for recovered polypropylene (PPr) in the manufacturing of composites. The composites were molded with variable amounts of PF (10, 20 and 30 wt%), with and without maleic anhydride functionalized polypropylene (MAPP) (10 wt%) as compatibilizer. The composites were characterized using mechanical tests (flexural, tensile, impact and hardness), thermal analyses (thermogravimetric analysis and differential scanning calorimetry), along with evaluations of heat deflection temperature, melting flow index, density and morphology. Tensile and flexural strength of composites increased with PF content, but impact strength decreased, since the material became stiffer. The use of MAPP in the formulations yielded superior properties, showing good fiber/matrix interaction. In all, the use of PF as reinforcement in PPr was considered an interesting way of reducing solid waste and to reinforce plastics, being a possible alternative for the substitution of wood in WPC composites.

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“…However, the pulverized rice-husk owes its outstanding modification effect on its dimensional stability, biodegradability, renewability, and compatibility [2]. Recent interests on the inadequate final disposal (open burning, land filling) of rice-husk, and its resistance to decomposition in the soil, difficult digestion and low nutritional value to animals has led to the development of a new product with thermoplastic and lignocellulosic material [3].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Mechanical Properties of Low Density Polyethylene/Rice-Husk Composite using Micro Mathematical Model Equations.

Nwanonenyi¹

2012

IOSRJEN

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Low Density Polyethylene and Rice-Husk of 0.300µm particle size were melt-blended together by extrusion process and the mechanical properties of the composite were investigated using ASTM D638 test method with Instron testing machine of LK10K and model-3 type. Experimental results showed that tensile strength and percentage elongation of the composite exhibited a gradual decrease with increase in filler loading while tensile modulus and hardness showed gradual improvement with increase in filler loading. The correlative analysis of the mechanical properties of the composite was compared with the experimental results and the results from the micro mathematical model equations. The result showed that there is a distinct variation between the experiment results and results from micro mathematical model equations. The mechanical properties of the composite indicate that it may useful in some applications that require low strength, high stiffness and hardness.

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Studies on the properties of rice-husk-filled-PP composites: effect of maleated PP

Cited by 103 publications

References 20 publications

The performance of mengkuang leaf fiber reinforced low density polyethylene composites

The performance of mengkuang leaf fiber reinforced low density polyethylene composites

Study of Composites Produced with Recovered Polypropylene and Piassava Fiber

Analysis of Mechanical Properties of Low Density Polyethylene/Rice-Husk Composite using Micro Mathematical Model Equations.

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