A single step ultrasound-assisted nitrocellulose synthesis from microcrystalline cellulose

Santos, Davi Teixeira dos; Iop, Gabrielle D.; Bizzi, Cezar A.; Mello, Paola A.; Mesko, Márcia F.; Balbinot, Fernanda P.; Flores, Érico M.M.

doi:10.1016/j.ultsonch.2020.105453

Cited by 17 publications

(7 citation statements)

References 28 publications

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“…Fourier transform infrared (FT-IR) was applied to study the molecular structure of NC with different nitrogen contents (Figure 2). The strong characteristic absorption peak at 1633 cm À 1 and 1273 cm À 1 were related to the asymmetric and symmetric stretching vibrations of the -NO 2 [38,39]. The characteristic absorption peak at 826 cm À 1 , 747 cm À 1 and 676 cm À 1 can be attributed to the scissor vibration, asymmetric deformation, and symmetrical deformation of the -O-NO 2 [39,40].…”

Section: Structural Analyses and Morphologymentioning

confidence: 93%

Hygroscopicity of nitrocellulose with different nitrogen content

Cao,

Nan,

Zheng

et al. 2024

Propellants Explo Pyrotec

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Research on the hygroscopic behavior of NC is essential because it affects the mechanical properties, combustion properties, and safe storage of NC‐based products. In this study, Fourier transform infrared spectroscopy (FTIR), X‐ray diffraction (XRD), and scanning electron microscopy (SEM) are used to characterize the chemical structure, crystal structure, and microscopic morphology of NC, respectively. The moisture adsorption isotherms of NC fibers with different nitrogen content are determined by dynamic vapor sorption (DVS) and fitted with Hailwood‐Horrobin (H−H) and Guggenheim‐Anderson‐de Boer (GAB) models. The specific surface area and surface energy of NC are also measured by inverse gas chromatography (IGC). The results show that as the nitrogen content of NC increases, the intensity of the −OH characteristic absorption peak is weakened, the crystallinity does not change much, the number of cracks and pores on the NC fiber surface increases, and the equilibrium moisture content (EMC) of the NC decreases in general. In addition, the fitting results based on the H−H and GAB models show that, under low humidity conditions, the EMC value of NC is determined by the adsorbed water content of the monolayer, which is mainly related to the −OH content in NC. However, with the increase of humidity, the EMC value of NC is gradually determined by the multilayer adsorbed water content, which is influenced by both the nitrogen content and the fiber cleavage structure. Meanwhile, the IGC results show that the surface energy of the NC consists mainly of the dispersive surface energy (values >46 mJ m−2), with the specific surface energy contributing approximately 25 mJ m−2. The total surface energy of NC and the bonding strength between NC molecules and water molecules decrease with increasing nitrogen content.

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Section: Structural Analyses and Morphologymentioning

confidence: 93%

Hygroscopicity of nitrocellulose with different nitrogen content

Cao,

Nan,

Zheng

et al. 2024

Propellants Explo Pyrotec

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“…According to various nitrogen contents, NC can be applied to fabricate films, clothes, paint, and explosives for extensive application in the industry. [62] Cyanoethyl cellulose (CEC) is a typical cellulose ether synthesized from cotton first [224] Copyright 2017, Elsevier. b) SC, Reproduced with permission.…”

Section: Noncommercial-modified Cellulosementioning

confidence: 99%

“…According to various nitrogen contents, NC can be applied to fabricate films, clothes, paint, and explosives for extensive application in the industry. [ 62 ] Cyanoethyl cellulose (CEC) is a typical cellulose ether synthesized from cotton first (Figure 4d). It possesses a variety of merits such as antibacterial property, acid resistance, regulable waterproofness, and dielectric constant and has been widely used in functional textiles, luminescent devices, and displays.…”

Section: Cellulosementioning

confidence: 99%

Cellulose for Sustainable Triboelectric Nanogenerators

Zhou

Wang

et al. 2021

Adv Energy and Sustain Res

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Triboelectric nanogenerators (TENGs) are an emerging technology capable of converting the ambient mechanical energy into electricity, promising for complete utilization of the distributed energy to improve the quality of human life. However, realizing material innovation for good trade‐off between the high triboelectric output and environment friendliness remains huge challenge, but it is of great importance for sustainable development of TENGs. Cellulose is a typical natural polymer that promises to address the challenge. Herein, the sustainable TENGs that originate from cellulose and potentially back to the natural world are focused on, realizing on‐spot TENGs. First, the sources, forms, morphologies, structures, and modifications of cellulose are systematically summarized, indicating the commercial and noncommercial cellulose materials’ potential for TENGs’ application. Second, the dominating additive properties of cellulose such as hydrophobicity, self‐cleaning, corrosion resistance, optical transparency, electrical conductivity, and degradability are introduced, which can effectively steer the development of TENGs. Thereafter, the TENGs with tailorable functions enabled by less‐refined cellulose and various physical/chemical modified cellulose are reviewed, as well as plants‐supported on‐spot TENGs with environment adaptivity and transient property, embracing a sustainable future of versatile cellulose to adapt the distributed network of multiscenario TENGs for energy management and information communication.

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“…In this context, nitrated microcrystalline cellulose (NMCC), also known as nanostructured nitrocellulose, has attracted a lot of interest and attention in recent years in both academic and industrial domains as a result of its exceptional characteristics [ 11 ]. Compared to the common NC, NMCC showed substantial performance improvements, such as high density (1.673 g/cm 3 for NC and 1.691 g/cm 3 for NMCC) and nitrogen content (12.68% for NC and 13.17% for NMCC) [ 12 ], making it a very interesting alternative candidate for use in advanced energetic materials (EMs) [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Development and Characterization of New Energetic Composites Based on HNTO/AN Co-Crystal and Nitro-Cellulosic Materials

et al. 2023

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To develop advanced cellulose-based energetic composites, new types of high-energy-density formulations containing hydrazine 3-nitro-1,2,4-triazol-5-one (HNTO)/ammonium nitrate (AN) cocrystals combined with nitrocellulose or nanostructured cellulose nitrate (NC and NMCC) were experimentally characterized. The prepared energetic formulations were analyzed in terms of their physicochemical properties, mechanical sensitivities, structural features, and thermal behavior. Their heats of combustion and theoretical energetic performance were assessed as well. Experimental results exhibited the inherent characteristics of the designed NC@HNTO/AN and NMCC@HNTO/AN, including improved density, specific impulse, and impact sensitivity compared to their raw compounds. Besides that, thermo-kinetic findings revealed that the as-prepared insensitive and high-energy-density composites undergo two exothermic decomposition processes, and that NC@HNTO/AN has higher thermal activity. The present study demonstrated the outstanding characteristics of the new composites and could serve as a reference for developing more advanced cellulose-based energetic formulations.

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A single step ultrasound-assisted nitrocellulose synthesis from microcrystalline cellulose

Cited by 17 publications

References 28 publications

Hygroscopicity of nitrocellulose with different nitrogen content

Hygroscopicity of nitrocellulose with different nitrogen content

Cellulose for Sustainable Triboelectric Nanogenerators

Development and Characterization of New Energetic Composites Based on HNTO/AN Co-Crystal and Nitro-Cellulosic Materials

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