Jianhao Zhu, Menghe Zhu, Jinyang Li, Xinliang Liu, Ying Wang, Xilei Chen, Lei Liu, Pingan Song
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引用次数: 0
Abstract
Frequent offshore crude oil spill accidents pose a significant threat to marine ecosystems and coastal communities. Due to the high viscosity and poor fluidity of crude oil, there is an urgent need for polyurethane foam with excellent photothermal properties and oil–water separation capabilities to facilitate crude oil absorption. However, the flammability of PU foam greatly restricts its application when faced with fire scenarios in offshore petrochemical spill incidents. To solve these challenges, a flame-retardant superhydrophobic-superoleophilic polyurethane foam (PDMS@PLP@MXene@PU) is designed by assembling dual photothermal layers and flame retardant onto the foam structure via electrostatic attraction and hydrogen bonding. The results show that PDMS@PLP@MXene@PU exhibits superhydrophobic properties (water contact angle = 162.4°) and crude oil absorption capacity (64.2 g/g). The compressive strength of the PDMS@PLP@MXene is enhanced by 83.9 %. PDMS@PLP@MXene@PU exhibits good photothermal effect and thermal conductivity, which can rapidly rise to 80.0 °C under 1 kW/m2 solar irradiation with a maximum oil absorption rate of ∼ 98 %. PDMS@PLP@MXene@PU can self-extinguish a flame with 52.7 % and 71.4 % reductions in peak heat release rate and total smoke production, respectively. This work offers a facile strategy for creating high-performance polyurethane foam to address crude oil spills.
期刊介绍:
Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.