Density measurement of rice husk ash filler particles in polypropylene composites

Fuad, M. Y. Ahmad; Yaakob, I.; Ishak, Z. A. Mohd; Omar, A.K. Mohd

doi:10.1016/0142-9418(93)90033-l

Cited by 30 publications

(11 citation statements)

References 3 publications

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“…It can be seen that tensile strength decreases steadily as the loading of WRHA increases in the composites. This is not suprising, as other researchers19, 20 also reported that incorporation of filler into the polymer matrix may not necessarily increase the tensile strength of a composite. Manson and Sperling21 and Nielsen17 reported that in particulate‐filled composites, discontinuity is created because of poor stress transfer at the filler polymer interphase and this generates weak structure.…”

Section: Resultsmentioning

confidence: 91%

“…When filler loading is increased, more weak interfacial regions between the filler surface and the PP/NR matrix are formed. Because cracks travel more easily through the weaker interfacial regions, the composites fracture at a lower degree of elongation with increasing filler content 19. Figure 4 also shows that composites with 3‐APE exhibit lower E b values than the composites without 3‐APE.…”

Section: Resultsmentioning

confidence: 99%

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Effect of a silane coupling agent on the properties of white rice husk ash–polypropylene/natural rubber composites

Ismail

Mega

Khalil

2001

Polymer International

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White rice husk ash (WRHA)–polypropylene (PP)/natural rubber (NR) composites were prepared using a Brabender Plasticorder at 180 °C and a rotor speed of 50 rev min−1. The mechanical and water‐absorption properties were studied. The incorporation of WRHA into the PP/NR matrix has resulted in the improvement of the tensile modulus; however, the tensile strength, elongation at break and stress at yield decreased with increasing WRHA loading. Poor filler matrix interactions are believed to be responsible for the decrease in the properties. Incorporation of a silane coupling agent, 3‐aminopropyl triethoxysilane (3‐APE), improved tensile modulus, tensile strength and stress at yield of the composites. Water‐absorption studies indicate that the use of the coupling agent reduced the amount of water absorbed by the composites. © 2001 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Effect of a silane coupling agent on the properties of white rice husk ash–polypropylene/natural rubber composites

Ismail

Mega

Khalil

2001

Polymer International

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“…Similar results have been observed by several workers. 16,17 The RWP-filled Figure 8(A,C), that the fibers tend to cling together in bundles and resist dispersion of the individual fibers as fiber content increases. These fiber bundles can be observed by SEM to be distributed unevenly throughout the matrix.…”

Section: Preparation Of Composite Effects Of Filler Form On the Mechamentioning

confidence: 98%

Rubberwood-high-density polyethylene composites: Effect of filler size and coupling agents on mechanical properties

Rozman

Kon

Abusamah

et al. 1998

J. Appl. Polym. Sci.

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Composites were made from rubberwood in the form of fibers (RWF) and powder (RWP) and high-density polyethylene (HDPE). The RWP-HDPE composites showed higher tensile strength than those of the fibers. The inferior properties of the RWF-filled composites were believed to be attributed to the agglomeration of the fibers. Two types of coupling agents, that is, 3-(trimethoxysilyl)propyl methacrylate (TPM) and 3-aminopropyltriethoxysilane (APE), were employed in an attempt to improve the mechanical properties of the composites. The former was able to significantly improve the modulus of elasticity (MOE) and impact strength of the RWF-filled composites. Treatment with TPM resulted in the reduction of the tensile modulus and increase in the elongation at break (EB) for both RWF and RWP-filled composites. APE produced RWP-filled composites with a higher tensile strength and modulus.

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“…Although a large number of published papers exists on PP/RH composites [7–14], and the use of white rice husk ash (WRHA) and black rice husk ash (BRHA) in plastics [15–29], there was no work reported on the use of recycled acrylonitrile‐butadiene rubber (NBRr) in PP in the presence of RHP filler. The objective of this work was to explore the mechanical properties, swelling behavior, and water absorption capacity of PP/NBRr/RHP composites.…”

Section: Introductionmentioning

confidence: 99%

Tensile properties, swelling, and water absorption behavior of rice‐husk‐powder‐filled polypropylene/(recycled acrylonitrile‐butadiene rubber) composites

Ismail

Santiagoo

Kamarudin

2011

Vinyl Additive Technology

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The effect of rice husk powder (RHP) on the tensile properties, swelling, water absorption, and morphology of polypropylene (PP)/[recycled acrylonitrile‐butadiene rubber (NBRr)]/RHP composites was studied. Composites containing 0 to 30 parts of RHP per hundred parts of resin were prepared by using a Haake Rheomix Polydrive R 600/610 mixer at 180°C with a rotor speed of 50 rpm. Results indicated that the tensile strength and elongation at break decreased but that the tensile modulus increased with increasing amounts of RHP. Swelling of the PP/NBRr/RHP composites in oil and toluene increased with increasing RHP contents, and the composites exhibited a non‐Fickian diffusion with a two stage absorption mechanism. Micrographs acquired by SEM revealed an increasing number of voids and micro‐holes on the tensile‐fractured surfaces of the composites with increasing amounts of RHP. J. VINYL ADDIT. TECHNOL., 2011. © 2011 Society of Plastics Engineers

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Density measurement of rice husk ash filler particles in polypropylene composites

Cited by 30 publications

References 3 publications

Effect of a silane coupling agent on the properties of white rice husk ash–polypropylene/natural rubber composites

Effect of a silane coupling agent on the properties of white rice husk ash–polypropylene/natural rubber composites

Rubberwood-high-density polyethylene composites: Effect of filler size and coupling agents on mechanical properties

Tensile properties, swelling, and water absorption behavior of rice‐husk‐powder‐filled polypropylene/(recycled acrylonitrile‐butadiene rubber) composites

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