Bio-Inspired Aramid Fibers@silica Binary Synergistic Aerogels with High Thermal Insulation and Fire-Retardant Performance

Flame-retardant, thermal insulation, mechanically robust, and comprehensive protection against extreme environmental threats aerogels are highly desirable for protective equipment. Herein, inspired by the core (organic)-shell (inorganic) structure of lobster antenna, fire-retardant and mechanically...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Polymers Jg. 15; H. 1; S. 141
Hauptverfasser: Zhou, Jinman, Liu, Xianyuan, He, Xiaojiang, Wang, Haoxin, Ma, Dongli, Lu, Xianyong
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Switzerland MDPI AG 28.12.2022
MDPI
Schlagworte:
Chemical vapor deposition
Core-shell structure
Electric properties
Fibers
Flame retardants
Fourier transforms
Heat conductivity
Heat resistance
High temperature
Hydrogels
Hydrogen bonds
Insulation
Mechanical properties
Nanocomposites
Nanoparticles
Polymers
Potash
Potassium
Robustness
Silica
Silica aerogels
Sol-gel processes
Tensile strength
Thermal conductivity
Thermal insulation
Thermal protection
Thermal resistance
China
United States > US
aramid nanofibers
heat resistance
bionic structure
flame retardancy
silica
ISSN:2073-4360, 2073-4360
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Flame-retardant, thermal insulation, mechanically robust, and comprehensive protection against extreme environmental threats aerogels are highly desirable for protective equipment. Herein, inspired by the core (organic)-shell (inorganic) structure of lobster antenna, fire-retardant and mechanically robust aramid fibers@silica nanocomposite aerogels with core-shell structures are fabricated via the sol-gel-film transformation and chemical vapor deposition process. The thickness of silica coating can be well-defined and controlled by the CVD time. Aramid fibers@silica nanocomposite aerogels show high heat resistance (530 °C), low thermal conductivity of 0.030 W·m−1·K−1, high tensile strength of 7.5 MPa and good flexibility. More importantly, aramid fibers@silica aerogels have high flame retardancy with limiting oxygen index 36.5. In addition, this material fabricated by the simple preparation process is believed to have potential application value in the field of aerospace or high-temperature thermal protection.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
content type line 23
ISSN:2073-4360
2073-4360
DOI:10.3390/polym15010141