Robust, biodegradable and flame-retardant nanocomposite films based on TEMPO-oxidized cellulose nanofibers and hydroxyapatite nanowires

Cellulose/silica composite microtubular superfoam with excellent flame retardancy, thermal insulation and ablative resistance

“…26–28 These introduced inorganic materials (such as hydroxyapatite, montmorillonite, or exfoliated clay) have high fire-resistance properties, which can inhibit the combustion and flame spread of cellulosic materials, and thus improve the flame-retardant performance of cellulose insulation materials. 29–32 However, the poor compatibility between inorganic fillers and polymers will weaken the interaction between inorganic fillers and polymer interface, and the dispersion of fillers in the polymers will also be affected. 33 Therefore, the addition of inorganic materials (usually in the form of inorganic fillers) will not only reduce the strength of the composite material, but also prevent the flame-retardant performance of the composite insulation material from being significantly improved.…”

Ambient-Pressure-Dried Biomass Aerogel toward Robust Cross-Linked Networks and Exceptional Mechanical Performances during Combustion

“…What is more, the thermal insulators also need to maintain robust properties to resist the collapse of a building under harsh conditions, e.g., high temperatures and fire scenarios, thus allowing more time for rescuing and escaping, especially in high-rise buildings. , Additive − and reactive − flame retardants were introduced into the aerogel to enhance both mechanical and flame-retardant performances. While flame resistance is achieved at room temperature, the resulting aerogels are prone to catastrophic collapse in fire scenarios, , which greatly restricts their broad application in advanced fields such as aerospace and aviation. Therefore, developing robust composite aerogels with flame retardancy and outstanding mechanical properties at normal and adverse conditions remains a huge challenge.…”

“…13,14 Additive 15−17 and reactive 18−20 flame retardants were introduced into the aerogel to enhance both mechanical and flameretardant performances. While flame resistance is achieved at room temperature, the resulting aerogels are prone to catastrophic collapse in fire scenarios, 21,22 which greatly restricts their broad application in advanced fields such as aerospace and aviation. Therefore, developing robust composite aerogels with flame retardancy and outstanding mechanical properties at normal and adverse conditions remains a huge challenge.…”