Improvement of stability for cellulose polymer by calcium oxide for application to porous materials

Lee, Hye Ji; Kang, Sang Wook

doi:10.1007/s10570-022-04767-4

Cited by 7 publications

(3 citation statements)

References 33 publications

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“…This enhancement is attributed to FA adhering to the cellulose's pore structure via strong hydrogen bond interactions. FA effectively forms an inorganic coating skeleton around the pores, providing crucial support and reinforcement (Lee et al 2022). As a result, with increasing FA content, the area of adhesion between FA and cellulose also expands, consequently boosting the compressive strength of the porous material (Donius et al 2014).…”

Section: Resultsmentioning

confidence: 99%

Fly-Ash based Flame-Retardant Cellulose Materials for Strengthening and Value-Added Utilization in Industrial Solid Wastes

He,

Tan,

et al. 2024

Preprint

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Cellulose, a bio-based material, is increasingly researched and valued for its abundant availability and exceptional characteristics. However, Cellulose has a flammable problem. This study addresses this issue by integrating it with industrial waste fly ash (FA) to overcome its natural flammability. By solution compounding, the study successfully developed cellulose/FA films and porous structures, significantly boosting the material's flame-retardant capabilities. This innovation not only enhances the practical application of cellulose but also promotes the high-value reuse of FA, resonating with the principles of sustainable development. The cellulose/FA hydrogel, characterized by a homogeneous and stable blend of FA particles and cellulose, achieves this through effective affinity and hydrogen bonding, ensuring optimal miscibility and encapsulation. In terms of thermal properties, the modified composites (C-F10, C-F20 and C-F30) demonstrate a substantial increase in initial decomposition temperatures, approximately 26℃ higher than pure cellulose, ranging between 282℃ and 302℃. This enhancement is attributed to the formation of an inorganic protective layer on the cellulose matrix, which significantly improves thermal stability while maintaining key mechanical properties. Remarkably, the flame retardancy of these materials shows notable improvement, particularly at a 30wt% FA concentration, with the limiting oxygen index (LOI) of the porous and film structures reaching around 29% and 31%, respectively. This advancement greatly elevates their flame resistance. Overall, this study presents a pioneering approach in developing eco-friendly, flame-retardant materials by repurposing industrial waste, marking a significant stride in sustainable material innovation.

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Section: Resultsmentioning

confidence: 99%

Fly-Ash based Flame-Retardant Cellulose Materials for Strengthening and Value-Added Utilization in Industrial Solid Wastes

He,

Tan,

et al. 2024

Preprint

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“…In the solution–diffusion mechanism, the rate of permeability through the polymeric membrane relies on the ability of the different particles to diffuse through the membrane pores [ 15 ]. Furthermore, other factors used conventionally to determine and evaluate the performance of polymeric membranes for the separation of particles include the rejection, permeability, flux, and selectivity of the membranes.…”

Section: Factors Affecting the Performance Of Polymeric Membranesmentioning

confidence: 99%

Nanoparticle-Embedded Polymers and Their Applications: A Review

Khdary,

Almuarqab,

El Enany

2023

Membranes

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There has been increasing interest in the study and development of nanoparticle-embedded polymeric materials and their applications to special membranes. Nanoparticle-embedded polymeric materials have been observed to have a desirable compatibility with commonly used membrane matrices, a wide range of functionalities, and tunable physicochemical properties. The development of nanoparticle-embedded polymeric materials has shown great potential to overcome the longstanding challenges faced by the membrane separation industry. One major challenge that has been a bottleneck to the progress and use of membranes is the balance between the selectivity and the permeability of the membranes. Recent developments in the fabrication of nanoparticle-embedded polymeric materials have focused on how to further tune the properties of the nanoparticles and membranes to improve the performance of the membranes even further. Techniques for improving the performance of nanoparticle-embedded membranes by exploiting their surface characteristics and internal pore and channel structures to a significant degree have been incorporated into the fabrication processes. Several fabrication techniques are discussed in this paper and used to produce both mixed-matrix membranes and homogenous nanoparticle-embedded polymeric materials. The discussed fabrication techniques include interfacial polymerization, self-assembly, surface coating, and phase inversion. With the current interest shown in the field of nanoparticle-embedded polymeric materials, it is expected that better-performing membranes will be developed soon.

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“…As a traditional polyolefin separator material, polyvinyl alcohol (PVA) has the disadvantages of poor insulation and low affinity to the electrolyte [13,14]. Cellulose acetate (CA), as a derivative of cellulose, has a wide range of sources [15], low prices [16], optimal mechanical properties [17] and chemical stability [18], and optimal film-forming properties [19,20]. It also makes up for the shortcomings of PVA materials due to their optimal electrical insulation and electrolyte affinity [21].…”

Section: Introductionmentioning

confidence: 99%

Preparation of cellulose acetate based flexible separator and its application in zinc–air batteries

Yuan,

Chen,

Peng

et al. 2024

Nanotechnology

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Flexible solid-state zinc-air batteries as a wearable energy storage device with great potential, and their separators, which control ion permeability, inhibit zinc dendrite generation, and regulate catalytic active sites, have been developed as gel electrolyte separators with high retention of electrolyte uptake. However, the gel electrolyte separator still has problems such as poor affinity with the electrolyte and poor ionic conductivity, which limits its further application. In order to further improve the electrolyte absorption, ionic conductivity and mechanical strength of cellulose acetate (CA)/polyvinyl alcohol (PVA) nanofibers, TiO2 was added to CA/PVA to increase the porosity, and glutaraldehyde (GA) was used to modify the CA/PVA/TiO2 separator by acetal reaction with CA and PVA to make the molecules closely linked. The results shows that the optimal mass fractions of TiO2 and GA were 2% and 5%, respectively. At this time, the porosity and absorption rate of the separator increased from 48% to 68.2% and 142.4% to 285.3%, respectively. The discharge capacity reached 169 mA/cm3, and the cycle stability rate was 87% after 7 stable constant current charge/discharge cycles.

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Improvement of stability for cellulose polymer by calcium oxide for application to porous materials

Cited by 7 publications

References 33 publications

Fly-Ash based Flame-Retardant Cellulose Materials for Strengthening and Value-Added Utilization in Industrial Solid Wastes

Fly-Ash based Flame-Retardant Cellulose Materials for Strengthening and Value-Added Utilization in Industrial Solid Wastes

Nanoparticle-Embedded Polymers and Their Applications: A Review

Preparation of cellulose acetate based flexible separator and its application in zinc–air batteries

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