Synthesis and characterization of cellulose nanofibers (CNF) ramie reinforced cassava starch hybrid composites

Syafri, Edi; Kasim, Anwar; Abral, Hairul; Sudirman, Sudirman; Sulungbudi, Grace Tj.; Rangappa, Sanjay Mavinkere; Sari, Nasmi Herlina

doi:10.1016/j.ijbiomac.2018.08.134

Cited by 96 publications

(31 citation statements)

References 26 publications

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“…It may also due to the reduction in the molecular weight of the cellulose caused by the chemical treatments 2 . The degradation at 480°C is due to the decomposition of lignin along with the carbonaceous residue 60,61,64–66 . The mass loss of the oxidative degradation of lignin and other carbonaceous residue is reduced from ca.…”

Section: Resultsmentioning

confidence: 99%

Isolation and characterization of cellulose nanowhiskers from Acacia caesia plant

Thomas

Begum

Dominic

et al. 2020

J of Applied Polymer Sci

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Acacia caesia (L.) Willd (soap bark) fiber is an abundant natural resource, that is rich in cellulose. The study reports the effective utilization of underutilized Acacia caesia fiber for the isolation of nanocellulose whiskers. The nanocellulose whiskers were isolated successfully from Acacia caesia fibers by following alkali, bleaching, and sulfuric acid treatment. The obtained nanocellulose whiskers were carefully investigated for its chemical composition, structure, morphology, crystallinity, and thermal stability. The chemical composition and Fourier transform infrared spectra of nanocellulose whiskers showed the elimination of the non‐cellulosic parts present in the raw Acacia caesia fibers. The X‐ray diffraction analysis showed an upsurge in the crystallinity of the cellulose fibers after the chemical treatments. The isolation of nanocellulose whiskers from Acacia caesia raw fiber was confirmed by electron microscopy analysis. The thermogravimetric analysis showed remarkably high char residue for the nanocellulose whiskers compared to raw fibers. Based on the properties of nanocellulose whiskers, it can be concluded that the nanocellulose whiskers produced from Acacia caesia raw fibers are potential reinforcing material for developing high‐performance green composites.

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Section: Resultsmentioning

confidence: 99%

Isolation and characterization of cellulose nanowhiskers from Acacia caesia plant

Thomas

Begum

Dominic

et al. 2020

J of Applied Polymer Sci

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“…Nanocellulose can be extracted from several cellulose resources such as wood [15,16], cotton [17,18], ramie [19], bagasse [20,21], bamboo [22], sisal [23], corn straw [24], rice straw [18], and coconut shell [25]. It has been reported that the fundamental properties of the obtained nanocellulose, such as morphology, crystallinity, dimensions, and surface chemistry, vary highly depending on the raw material and the isolation process used to obtain it [26,27].…”

Section: Introductionmentioning

confidence: 99%

Isolation and Characterization of Nanocellulose with a Novel Shape from Walnut (Juglans Regia L.) Shell Agricultural Waste

et al. 2019

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Herein, walnut shell (WS) was utilized as the raw material for the production of purified cellulose. The production technique involves multiple treatments, including alkaline treatment and bleaching. Furthermore, two nanocellulose materials were derived from WS by 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO) oxidation and sulfuric acid hydrolysis, demonstrating the broad applicability and value of walnuts. The micromorphologies, crystalline structures, chemical functional groups, and thermal stabilities of the nanocellulose obtained via TEMPO oxidation and sulfuric acid hydrolysis (TNC and SNC, respectively) were comprehensively characterized. The TNC exhibited an irregular block structure, whereas the SNC was rectangular in shape, with a length of 55–82 nm and a width of 49–81 nm. These observations are expected to provide insight into the potential of utilizing WSs as the raw material for preparing nanocellulose, which could address the problems of the low-valued utilization of walnuts and pollution because of unused WSs.

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“…This has led toward the production of biodegradable nanocomposites that can exhibit more improved properties than nonreinforced bioplastics. Biomacromolecules, for example cellulose, starch, and their derivatives, are natural polymers used for the production of nanobiocomposites [20,21]. These materials include synthetic or natural clay minerals or modified clay minerals such as nanofiller, providing exfoliation or intercalation compounds.…”

Section: Nanocomposites From Renewable Resourcesmentioning

confidence: 99%

Bioinspired Nanocomposites: Functional Materials for Sustainable Greener Technologies

Qamar¹,

Asgher²,

Khalid³

2020

Renewable Energy - Resources, Challenges and Applications

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This chapter presents a broad overview of the current advancements in bioplastics and bioinspired nanocomposites with nanoscale reinforcements that are being applied for a broad range of applications, that is, biomedical, electronics, durable goods and packaging materials. The production of nanocomposites by completely and/or partially renewable and biodegradable materials has helped in a range of different applications. Several drawbacks of conventional materials such as hydrophilicity, low-heat deflection, poor conductivity, and barrier properties can be efficiently overcome using biohybrid nanomaterials. Nano-reinforcements in composite materials deliver remarkably improved properties such as decrease in hydrophilicity and increase in mechanical properties as compared with neat biopolymer, which fails to exhibit these properties on its own. This approach can be used for other natural polymers to induce desired functionalities. This chapter covers the recent trends in nano-functional materials, renewable materials that are being applied for the production of nanobiocomposites and their applications especially in biomedical and healthcare sectors, which are discussed in detail. This emerging concept will definitely enhance the scope of nanohybrid materials for sustainable products development with improved properties than previously applied synthetic polymer-based or natural polymer-based materials.

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Synthesis and characterization of cellulose nanofibers (CNF) ramie reinforced cassava starch hybrid composites

Cited by 96 publications

References 26 publications

Isolation and characterization of cellulose nanowhiskers from Acacia caesia plant

Isolation and characterization of cellulose nanowhiskers from Acacia caesia plant

Isolation and Characterization of Nanocellulose with a Novel Shape from Walnut (Juglans Regia L.) Shell Agricultural Waste

Bioinspired Nanocomposites: Functional Materials for Sustainable Greener Technologies

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