@Article{jrm.2023.029057,
AUTHOR = {Jinshuo Wang, Lida Xing, Fulong Zhang, Chuanfu Liu},
TITLE = {Flame Retardant Material Based on Cellulose Scaffold Mineralized by Calcium Carbonate},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {12},
YEAR = {2024},
NUMBER = {1},
PAGES = {89--102},
URL = {http://www.techscience.com/jrm/v12n1/55242},
ISSN = {2164-6341},
ABSTRACT = {Wood-based functional materials have developed rapidly. But the flammability significantly limits its further application. To improve the flame retardancy, the balsa wood was delignified by NaClO<sub>2</sub> solution to create a cellulose scaffold, and then alternately immersed in CaCl<sub>2</sub> ethanol solution and NaHCO<sub>3</sub> aqueous solution under vacuum. The high porosity and wettability resulting from delignification benefited the following mineralization process, changing the thermal properties of balsa wood significantly. The organic-inorganic wood composite showed abundant CaCO<sub>3</sub> spherical particles under scanning electron microscopy. The peak of the heat release rate of delignified balsa-CaCO<sub>3</sub> was reduced by 33% compared to the native balsa, according to the cone calorimetric characterization. The flame test demonstrated that the mineralized wood was flame retardant and self-extinguish. Additionally, the mineralized wood also displayed lower thermal conductivity. This study developed a feasible way to fabricate a lightweight, fire-retardant, self-extinguishing, and heat-insulating wood composite, providing a promising route for the valuable application of cellulosic biomass.},
DOI = {10.32604/jrm.2023.029057}
}