1. High-performance flexible polyurethane foam based on hierarchical BN@MOF-LDH@APTES structure: Enhanced adsorption, mechanical and fire safety properties.
- Author
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Zhou, Yifan, Qiu, Shuilai, Chu, Fukai, Yang, Wenhao, Qiu, Yong, Qian, Lijun, Hu, Weizhao, and Song, Lei
- Subjects
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URETHANE foam , *FIRE prevention , *BORON nitride , *HEAT release rates , *ADSORPTION capacity , *ADSORPTION (Chemistry) , *COMPRESSIVE strength - Abstract
[Display omitted] Improving resilience, enhancing fire safety and adsorption properties were the key points for the preparation of high-performance flexible polyurethane foam (FPUF). Here, MOF-derived petal-like Co/Mg-double metal hydroxide (Co/Mg-LDH) and 3-aminopropyltriethoxysilane (APTES) were selected to modify the hydroxylated boron nitride (BNNS-OH) to obtain a hydrophobic BN@MOF-LDH@APTES. Compared with the previous work, BN@MOF-LDH@APTES demonstrated extremely high filler efficiency in reducing the heat release per unit mass (THR/TM) (18.2 % reduction) and smoke production per unit mass (TSP/TM) (19.1% reduction) of FUPF during combustion. In addition, the obtained FPUF nanocomposite exhibited high absorption capacity while achieving remarkable thermal stability and fire safety. Moreover, the FPUF nanocomposite containing 1 wt% BN@MOF-LDH@APTES achieved a 71% increase in compressive strength, indicating excellent resilience. Therefore, this work provided a new material for the preparation of high-resilience FPUF with both flame retardancy and adsorption capacity. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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