木材科学与技术2025，Vol.39Issue(3)：19-25,7.DOI:10.12326/j.2096-9694.2025003
纤维素纳米纤维基阻燃疏水气凝胶的制备及性能
Preparation and Properties of Nanocellulose-Based Flame-Retardant Hydrophobic Aerogel
摘要
Abstract
The hydrophilic and flammable properties of cellulose nanofibers(CNF)based aerogels limit their applications.To alleviate these challenges,using CNF as the matrix,both chitosan(CS)and magnesium hydroxide(Mg(OH)2)as the flame-retardant additives,and polydimethylsiloxane(PDMS)as the hydrophobic agent,a hydrophobic and flame-retardant CNF-based aerogel(named CCMP aerogel)was made through ultrasonic homogenization compounding and freeze-drying at a low temperature.The novel constructed CCMP aerogel presented a typical three-dimensional mesh structure and a low density(40.10 mg/cm³).The ultrasonic homogenization treatment evenly distributes CS and Mg(OH)2 on CNF surface.Adding both CS and Mg(OH)2 in the aerogels led limiting oxygen index(LOI)value up to 54.4%.Moreover,the added PDMS results a water contact angle(WCA)of 139.0±1.3° in the hydrophilic CNF-based aerogel.This study provides a new approach for constructing CNF-based flame-retardant hydrophobic aerogels.关键词
纤维素纳米纤维/壳聚糖/气凝胶/阻燃/疏水Key words
cellulose nanofibers/chitosan/aerogel/flame retardant/hydrophobic分类
化学化工引用本文复制引用
陈冀锐,刘焕,方小龙,张文标..纤维素纳米纤维基阻燃疏水气凝胶的制备及性能[J].木材科学与技术,2025,39(3):19-25,7.基金项目
国家自然科学基金"三元一体炭基协效高阻燃体系的构建及其在炭塑板中的增强作用与评价机制研究"(32171878) （32171878）
浙江省自然科学基金"基于三元一体纳米炭基协效体系的聚乳酸复合材料阻燃与增强增韧机制研究"(LZ22C160006). （LZ22C160006）
