Experimental investigation of water absorption behaviour of sisal fiber reinforced polyester and sisal fiber reinforced poly lactic acid composites

Kumari, Yogita; Ramanaiah, K.; Prasad, A.V. Ratna; Reddy, K. Hemachandra; Sanaka, Srinivas Prasad; Prudhvi, A. Kalyan

doi:10.1016/j.matpr.2020.11.002

Cited by 14 publications

(4 citation statements)

References 23 publications

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“…In addition, for sisal mat composites, the dependence of the diffusion coefficient on temperature is noteworthy and corroborates previous studies on natural fiber-reinforced composites [18]. Concerning the diffusion coefficient at room temperature, the results were similar to those obtained by Kumari et al for sisal polyester composites fabricated by hot compression molding [19]. The authors found a value of 1.65 × 10 −6 mm 2 /s, while the experimental data showed 6.01 • 10 −6 ± 5 and 19 • 10 −7 mm 2 /s.…”

Section: Water Sorption Kineticssupporting

confidence: 91%

Effect of Hydrothermal Aging on Damping Properties in Sisal Mat-Reinforced Polyester Composites

Silva,

Marques

et al. 2024

Polymers

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Hydrothermal aging is a matter of considerable concern for natural fiber-reinforced polymers; it can alter dimensional stability and induce microcracks and macro strain on the composite structure. This study applied a sorption kinetic model and examined the effects of water on the damping factor of sisal mat-reinforced polyester composites. The experimental data were fitted well using a Boltzmann sigmoid function, suggesting a promising first step toward kinetic water sorption modeling. Additionally, a damping test was carried out using the impulse excitation technique, highlighting the composite material’s dynamic response under varying water absorption conditions. The result showed that damping exhibited sensitivity to water absorption, increasing significantly during the first 24 h of immersion in water, then remained steady over time, inferring a critical time interval. An empirical model proved satisfactory with the correlation coefficient for sorption rates and damping of sisal mat polymeric composites.

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Section: Water Sorption Kineticssupporting

confidence: 91%

Effect of Hydrothermal Aging on Damping Properties in Sisal Mat-Reinforced Polyester Composites

Silva,

Marques

et al. 2024

Polymers

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“…The increase in weight for both cases is initially linear and then becomes constant after some time. This type of water absorption behavior resembles Fickian diffusion behavior [21].…”

Section: Resultsmentioning

confidence: 72%

Effect of Mercerization on Mechanical Properties of <i>Grewia Optiva </i>Natural Fiber Polymer Composites

Chauhan,

Gope

2024

KEM

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The concerns towards sustainable development have triggered the need of adopting biodegradable products in different applications. The natural fibers are being widely explored in the field of composites for various applications. Sustainable architecture is also seeking the research and development of new materials to minimize the negative environmental effect of the traditional structural materials. A bast fiber obtained from Grewia Optiva (G.O.) tree is abundantly available in the sub-Himalayan terrains and is still underutilized in the field of biocomposites. The promotion of G.O. fiber in fabrication of biocomposites may give a source of income and employment to rural hilly populations. This research work utilizes the G.O. fiber collected from the Okhalkanda block of Nainital district of Uttarakhand to develop biocomposites. The effect of mercerization on the water absorption behavior and mechanical properties has been also studied. It is found that the treatment of fibers with NaOH reduces the water absorption tendency of G.O. Natural Fiber Reinforced Biocomposites (NFRB) upto 41.05% and the mechanical properties are also improved by appreciable amount. The tensile and flexural strength obtained are 141.45 MPa and 109.84 MPa respectively for mercerized fiber reinforcement. Impact strength and mode-I fracture toughness have been recorded as 11.97 KJ/m2 and 1.85 MPa√m respectively. SEM images of fractured surfaces indicate good bonding of mercerized fibers as compared to untreated fibers with epoxy matrix. Hence the Grewia Optiva biocomposites have potential to be used in different architectural applications like wall panels, false ceilings, doors, windows, etc.

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“…Das et al reported that the water absorption of the coir fiber reinforced epoxy composites raised as fiber length and fiber content increased [ 38 ]. Kumari et al prepared polyester and poly lactic acid composites with sisal fiber where they also found an increased water absorption capacity of the composites when the amount of fiber was increased [ 39 ]. Similar findings were found for the prepared polystyrene based short DPM fiber composites.…”

Section: Resultsmentioning

confidence: 99%

Preparation and characterization of short date palm mat (DPM) fiber reinforced polystyrene composites: Effect of gamma radiation

Khatun,

Sultana,

Kabir

et al. 2023

Heliyon

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Experimental investigation of water absorption behaviour of sisal fiber reinforced polyester and sisal fiber reinforced poly lactic acid composites

Cited by 14 publications

References 23 publications

Effect of Hydrothermal Aging on Damping Properties in Sisal Mat-Reinforced Polyester Composites

Effect of Hydrothermal Aging on Damping Properties in Sisal Mat-Reinforced Polyester Composites

Effect of Mercerization on Mechanical Properties of <i>Grewia Optiva </i>Natural Fiber Polymer Composites

Preparation and characterization of short date palm mat (DPM) fiber reinforced polystyrene composites: Effect of gamma radiation

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