Preparation and Properties of Basalt Fiber‐Reinforced Aqueous Polybenzoxazine Composite Aerogels Based on One‐Step Freeze‐Drying Method DOI

Pin Long,

Zhaorun Hou,

Jinbo Cheng

et al.

Journal of Applied Polymer Science, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 22, 2024

ABSTRACT Polybenzoxazine (PBa) aerogels have gained much attention as a fire‐retardant material because of their flexible molecular design and excellent mechanical properties. Incorporation inorganic fibers into PBa using simple effective method seems attractive yet challenging. Herein, we report unique for the one‐step preparation basalt fiber (BF) reinforced composite by freeze‐drying carboxymethyl cellulose (CMC) dispersion carrier. Aqueous benzoxazine (Ba) monomer was used matrix phosphoric acid polymerization catalyst, while uniform BF achieved blending with CMC. The results indicate that PBa/CMC/BF aerogel reveals layered microstructure dispersed between layers. And achieves low volume shrinkage (1.11%), strong strength (compressive stress 1.73 MPa at 60% compressive strain). Additionally, TGA analysis higher initial decomposition temperature (> 200°C) residual mass 48 wt%) in nitrogen atmosphere. Excellent flame retardancy is due to introduction nonflammable BF: content rises, its peak heat release rate decreases 92.5%, average 86.6%, total smoke 76.7%. In combustion tests, self‐extinguishes within 0.5 s. After hydrophobic modification, water contact angle greater than 135°, 3 exhibits typical “silver mirror phenomenon” water. This study presents straightforward rapid constructing lightweight, retardant, hydrophobic, high‐strength fiber‐reinforced aerogel, promising applications aerospace sector.

Language: Английский

Efficient synthesis of main chain thermosetting polybenzoxazine resin containing tert-butylcyclohexanone and diphenylmethane units for supercapacitor energy storage DOI
Kamal I. Aly,

Shymaa Mostafa Ebrahium,

Hani Nasser Abdelhamid

et al.

European Polymer Journal, Journal Year: 2024, Volume and Issue: unknown, P. 113519 - 113519

Published: Oct. 1, 2024

Language: Английский

Citations

5
Thermally Stable Carbon Materials from Polybenzoxazines: Structure, Properties, and Supercapacitor Potential DOI Creative Commons
Thirukumaran Periyasamy, Shakila Parveen Asrafali, Jaewoong Lee

et al.

Batteries, Journal Year: 2025, Volume and Issue: 11(4), P. 140 - 140

Published: April 4, 2025

This review explores the structural and electrochemical characteristics of carbon materials derived from polybenzoxazines, emphasizing their potential in supercapacitors. A detailed analysis thermal degradation by-products during carbonization reveals distinct competing mechanisms, underscoring exceptional stability benzoxazines. These exhibit significant pseudocapacitive behavior excellent charge retention, making them strong candidates for energy storage applications. The versatility polybenzoxazine-based carbons enables formation diverse morphologies—nanospheres, foams, films, nanofibers, aerogels—each tailored specific functionalities. Advanced synthesis techniques allow precise control over porosity at nanoscale, optimizing performance supercapacitors beyond. Their stability, electrical conductivity, tunable extend utility to gas adsorption, catalysis, electromagnetic shielding. Additionally, intumescent properties (unique ability expand when exposed high heat) make promising flame-retardant coatings. combination customizable architecture, superior performance, resistance highlights transformative sustainable solutions advanced protective

Language: Английский

Citations

0
A Comparison of the Electrical Properties of Gel Polymer Electrolyte-Based Supercapacitors: A Review of Advances in Electrolyte Materials DOI Creative Commons
Ghobad Behzadi Pour,

Hamed Nazarpour Fard,

Leila Fekri Aval

et al.

Gels, Journal Year: 2024, Volume and Issue: 10(12), P. 803 - 803

Published: Dec. 6, 2024

Flexible solid-state-based supercapacitors are in demand for the soft components used electronics. The increased attention paid toward solid-state electrolytes could be due to their advantages, including no leakage, special separators, and improved safety. Gel polymer (GPEs) preferred energy storage field, likely owing safety, lack of compatibility with various separators as well higher ionic conductivity (IC) than traditional solid electrolytes. This review covers classification, properties, configurations different GPE-based recent advancements that have occurred this area storage. Ionic liquid (IL)-based materials popular GPEs electrochemical can prepare unprecedented flexible great IC wide potential range. A comparative assessment GPEs-based reveals a majority them, value specific capacitance is generally under 1000 F g−1, density reaches around 125 Wh kg−1, power seen less 1500 W kg−1. results research serve an essential reference upcoming scholars, significantly improve our comprehension efficacy GPE-containing supercapacitors.

Language: Английский

Citations

2
Preparation and Properties of Basalt Fiber‐Reinforced Aqueous Polybenzoxazine Composite Aerogels Based on One‐Step Freeze‐Drying Method DOI

Pin Long,

Zhaorun Hou,

Jinbo Cheng

et al.

Journal of Applied Polymer Science, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 22, 2024

ABSTRACT Polybenzoxazine (PBa) aerogels have gained much attention as a fire‐retardant material because of their flexible molecular design and excellent mechanical properties. Incorporation inorganic fibers into PBa using simple effective method seems attractive yet challenging. Herein, we report unique for the one‐step preparation basalt fiber (BF) reinforced composite by freeze‐drying carboxymethyl cellulose (CMC) dispersion carrier. Aqueous benzoxazine (Ba) monomer was used matrix phosphoric acid polymerization catalyst, while uniform BF achieved blending with CMC. The results indicate that PBa/CMC/BF aerogel reveals layered microstructure dispersed between layers. And achieves low volume shrinkage (1.11%), strong strength (compressive stress 1.73 MPa at 60% compressive strain). Additionally, TGA analysis higher initial decomposition temperature (> 200°C) residual mass 48 wt%) in nitrogen atmosphere. Excellent flame retardancy is due to introduction nonflammable BF: content rises, its peak heat release rate decreases 92.5%, average 86.6%, total smoke 76.7%. In combustion tests, self‐extinguishes within 0.5 s. After hydrophobic modification, water contact angle greater than 135°, 3 exhibits typical “silver mirror phenomenon” water. This study presents straightforward rapid constructing lightweight, retardant, hydrophobic, high‐strength fiber‐reinforced aerogel, promising applications aerospace sector.

Language: Английский

Citations

1