Evaluation of the effects of decay and weathering in cellulose-reinforced fiber composites

Dungani, Rudi; Aditiawati, Pingkan; Islam, Md. Nazrul; Aprilia, N. A. Sri; Hartati, Sri; Sulaeman, Aminudin; Sumardi, Ihak; Karliati, Tati; Yuniarti, Karnita; Sutrisno, Sutrisno

doi:10.1016/b978-0-08-102290-0.00009-x

Cited by 9 publications

(4 citation statements)

References 132 publications

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“…According to Arpaci et al (2021), the initial color of wood after natural weathering is also influenced by other external agents, such as biotic factors (molds) and dirt. Photodegradation of cellulose is mainly caused by water and ultraviolet radiation, which causes the chemical decomposition of its chains and, consequently, discoloration and decay (Dungani et al, 2019). In general, a reduction in water absorption implies an increase in the dimensional stability (Trinh et al, 2012) of the material.…”

Section: Resultsmentioning

confidence: 99%

“…Observations such as color change, formation of cracks and pores, surface roughness, and defragmentation are possible modifications to be seen in samples of materials subjected to weathering (Tomacheski et al, 2018). In general, both forms of degradation decrease the performance of cellulose fibers-reinforced composites, inducing changes in physical and mechanical properties (Dungani et al, 2019). Table 1 shows some of the current research regarding the evaluation of natural weathering effects on different materials.…”

Section: Natural Weathering Of Composites Developed From Cellulose Wa...mentioning

confidence: 99%

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Natural weathering of composites developed from cellulose waste and post-consumer paper

Gomes

Rodrigues

Santos

et al. 2022

Rev. Bras. Ciênc. Ambient.

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The development of materials that are highly degradable at the end of their life cycle helps reduce the volume of solid waste disposed of in landfills. This study aimed to produce composites from cellulose and paper residues as reinforcing fibers and from thermoplastic starch (TPS) as a matrix to analyze the effect of exposure to natural weathering in the environments of two Universities, one in Brazil (Universidade Feevale) and the other in Finland (HAMK). During the test period, the season in Brazil was summer, with high temperatures and solar radiation; in Finland, the season was winter, with negative temperatures, high air humidity, and snowfall. The materials were prepared using the tape-casting method and characterized by Dynamic Mechanical Analysis (DMA) and Thermogravimetric Analysis (TGA), having been subjected to the weather for 0, 28, and 42 days at Universidade Feevale and HAMK. At the end of each period, they were characterized by Scanning Electron Microscopy (SEM) and photographs. The results showed that the thermal stability of the composites was better compared to TPS and cellulose, and superior mechanical properties were shown in the cellulose-based composite. Thus, heterogeneous mixtures emerged from the addition of fibers to the polymer matrix. After the environmental exposure, the visualization of the micrographs and photographs indicated that the samples exposed in the two environments were brittle, shrunken, yellowed, and cracked. It was also verified that the samples exposed at Universidade Feevale suffered greater environmental degradation, and the incorporation of fibers in the composites delayed this effect at the two study sites.

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Section: Resultsmentioning

confidence: 99%

Section: Natural Weathering Of Composites Developed From Cellulose Wa...mentioning

confidence: 99%

Natural weathering of composites developed from cellulose waste and post-consumer paper

Gomes

Rodrigues

Santos

et al. 2022

Rev. Bras. Ciênc. Ambient.

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“…To stop the creation of air bubbles, a sonication machine was used. After allowing the mold to cure at room temperature for two hours, the samples were removed from the mold and held for further testing [10,27] composite specimen A 140 x 35 x 10 x 5 mm size mould was typically used to cast the composite sheet. The standard was used to fabricate the composite samples as shown in Figure 1 Schematic representation of the mold used.…”

Section: Moisture Absorption Testmentioning

confidence: 99%

Studies on physico-mechanical behaviour of kenaf/glass fiber reinforced epoxy hybrid composites

Birniwa¹,

Abdullahi²,

Yakasai³

et al. 2021

Bull. Chem. Soc. Eth.

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In this study, various treated, untreated, and treated kenaf/glass fiber composites were fabricated using epoxy resin. A portion of kenaf fibers were subjected to treatment with alkali, sub-portion was taken for benzoyl peroxide and potassium permanganate prior to composite fabrication. This treatment on the composite material was undertaken to achieve improved modification of the interface between the matrix and fiber bond. A portion of the glass fiber was used for enhancing the mechanical properties of the hybrid composite. The tensile strength, flexural, density, water absorption and chemical resistance of the composites were analyzed using standard methods. FTIR was conducted on the fiber to ascertain the chemical treatment on the fibers, FESEM was used for the morphological study. The results obtained showed that the tensile and flexural strength improved from 46.45-298.3 kgf, and 10.5-54.7 kgf, respectively, in the composite samples. Chemical resistance of the kenaf fiber treated potassium permanganate composite improved compared to the untreated fiber composite in both cases. The density and water absorption properties of the composites were found to decrease in the treated fibers compared to untreated fiber composites, this treated composites showed less water absorption and density. The FTIR result revealed that reaction has taken place between the fiber and the treatment reagent. Hence, fiber modification has improved the properties of the composites due to increase in fiber-matrix interaction. KEY WORDS: Chemical properties, Epoxy resin, Hybrid, Kenaf, Mechanical strength, Natural fiber Bull. Chem. Soc. Ethiop. 2021, 35(1), 171-184. DOI: https://dx.doi.org/10.4314/bcse.v35i1.15

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“…Biocomposite is a material constructed mainly from naturally occurring fibers. The major fibers that are used for producing biocomposites are either animal-derived or plant-derived fibers [12]. Plastics reinforced with natural fibers have recently attracted attention.…”

Section: Introductionmentioning

confidence: 99%

Lignocellulose Derived Nanocellulose, Its Properties, and Applications - A Review

Samrot

Arif

Kasipandian

2023

ijmst

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Natural fibers are abundant in natural resources. Natural fibers have been used in various applications. Natural fibers have been proved to be extremely useful in multiple fields in the world. Natural fibers possess great mechanical and optical properties. Nanocellulose fibers are obtained from plants and it has many applications. It can be used as a nanocomposite. They can be extracted by performing various techniques. It is used as a barrier due to its crystalline structure, which makes it difficult for molecules to flow through. Nanocellulose fibers are biodegradable, strong, lightweight, low density, and renewable since they have been produced from natural resources. They have immense applications in electricals, nanotechnology, medicine, drug delivery, aerospace, adsorbents, papermaking, and dental. The following review will focus on the properties of lignocellulose-derived nanocellulose, cellulose nanocrystals (CNCs), and cellulose nanofibrils (CNFs) and their applications in nanotechnology.

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Evaluation of the effects of decay and weathering in cellulose-reinforced fiber composites

Cited by 9 publications

References 132 publications

Natural weathering of composites developed from cellulose waste and post-consumer paper

Natural weathering of composites developed from cellulose waste and post-consumer paper

Studies on physico-mechanical behaviour of kenaf/glass fiber reinforced epoxy hybrid composites

Lignocellulose Derived Nanocellulose, Its Properties, and Applications - A Review

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