Flame‐Resistant Inorganic Films by Self‐Assembly of Clay Nanotubes and their Conversion to Geopolymer for CO₂ Capture

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 7, 2024

Abstract Self‐assembling of very long natural clay nanotubes represents a powerful strategy to fabricate thermo‐stable inorganic thin films suitable for environmental applications. In this work, self‐standing with variable thicknesses (from 60 300 µm) are prepared by the entanglement 20–30 µm length Patch halloysite (PT_Hal), which interconnect into fibrosus structures. The thickness is crucial confer specific properties like transparency, mechanical resistance, and water uptake. Despite its completely composition, thickest nanoclay film possesses elasticity comparable polymeric materials as evidenced Young's modulus (ca. 1710 MPa). All PT_Hal‐based fire resistant stable under high temperature conditions preventing flame propagation. After their direct exposure, produced do not show neither deterioration effects nor macroscopic alterations. PT_Hal employed precursors development functional alkaline activation thermal treatment, generate highly porous geopolymers or ceramics compact morphology. Due porosity, geopolymer can be promising CO 2 capture. As compared corresponding film, adsorption efficiency doubled geopolymeric highlighting potential use sorbent.

Language: Английский

---

Application of Polymer-Nanoclay in Flame Retardant Systems

Springer series in materials science, Journal Year: 2025, Volume and Issue: unknown, P. 577 - 636

Published: Jan. 1, 2025

Language: Английский

---

Research on Thermal Stability and Flammability of Wood Scob-Based Loose-Fill Thermal Insulation Impregnated with Multicomponent Suspensions

Materials, Journal Year: 2024, Volume and Issue: 17(12), P. 2809 - 2809

Published: June 8, 2024

Loose-fill thermal composite insulation produced from surface-modified wood scobs has been explored as a potential fire-resistant material for building envelopes. This work involves fire resistance behavior comparisons between four coating systems consisting of liquid glass, glass-tung oil, glass-expandable graphite, and oil-expandable graphite. The techniques thermogravimetric differential analyses, gross heat combustion via calorimetric bomb, cone calorimetry, SEM imaging char residues, energy dispersive spectrometry elemental analysis, well propensity to undergo continuous smoldering, were implemented. technique resulted in greater stability at higher temperature range (500–650 °C) the resulting loose-fill insulation, reduced flame-damaged area heights after exposure samples 45° 15 s 30 s, with maximum 49% decreased combustion, release total smoke rates, improved residue layer formation during changed smoldering due homogeneous dense carbon layers. results showed that highest positive impact was obtained using glass graphite system because ability cover scob particle surface form stable strong expanding layer.

Language: Английский

---

Comprehensive Utilization of Fossil Energy: Fabrication of Fire-Retardant Building Materials from Waste Plastic

Journal of Composites Science, Journal Year: 2024, Volume and Issue: 8(7), P. 266 - 266

Published: July 10, 2024

As one of the most common fossil derivatives, plastics are widely used for their exceptional chemical stability, low density, and ease processing. In recent years, there has been a significant increase in production waste plastics, coupled with recycling rate, resulting serious environmental pollution. To enhance use this research synthesized flame-retardant materials from hypercrosslinked polystyrene different molar fractions flame retardants. Waste foam was as raw material, while aniline, triphenylphosphine, melamine were employed additives. The additives successfully doped into porous skeleton structure through reaction or physical mixing to achieve situ retardancy, shaped by phenolic resin prepolymer. Then, samples characterized detail, results indicate that addition retardant enhances retardancy material. addition, material excellent thermal insulation performance, minimum conductivity 0.04176 W/(m·K).

Language: Английский

---