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- W4213047999 abstract "Nanoparticles have been extensively utilized to improve the mechanical robustness, compressibility, wettability, and oil/water separation properties of polymeric sponges due to their advantages of significant effects, ease of operation, and cost-effectiveness. In this work, small quantities of SiO2, TiO2, and La2O3 nanoparticles were embedded in the surface of the epoxy/polyether amine (PEA) sponge skeleton by the mold transfer approach to improve the mechanical stability, compressibility, and oil/water separation efficiency of epoxy/PEA sponges. Embedding a small number of SiO2 and TiO2 nanoparticles improved the compressibility apparently, while the mechanical stability was weakened, ascribed to the aggregation of SiO2 and TiO2 nanoparticles at the skeleton surface. Continuously increasing the embedding content caused a rapid reduction in compressibility. In contrast, embedding La2O3 nanoparticles in epoxy/PEA ensured that the sponges returned to their original size after 100 cycles of compressive test under 80% strain (high compressibility) and maintained the network under a maximum compressive strength of 15.75 MPa after 15 cycles, indicating outstanding mechanical stability. Continuously increasing the embedding content of La2O3 generated negligible effects on the mechanical stability, while the elasticity dropped slightly. Embedding a small amount of La2O3 nanoparticles changed the curing reaction heat of epoxy/PEA and resulted in the formation of nanolayer structures, which offset the applied pressure and deformation. Embedding La2O3 nanoparticles increased the surface roughness, resulting in high hydrophilicity and underwater superoleophobicity, thereby delivering high oil/water separation properties. The reported method might therefore open a new avenue for the fabrication of highly elastic and mechanically robust oil/water separation polymer sponges." @default.
- W4213047999 created "2022-02-24" @default.
- W4213047999 creator A5005299078 @default.
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- W4213047999 creator A5043775393 @default.
- W4213047999 creator A5079657137 @default.
- W4213047999 date "2022-02-21" @default.
- W4213047999 modified "2023-10-15" @default.
- W4213047999 title "Fabrication of Mechanically Robust and Highly Elastic Epoxy Sponges <i>via</i> Surface Embedding of Nanoparticles for Long-Term Oil/Water Separation" @default.
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- W4213047999 doi "https://doi.org/10.1021/acsestengg.1c00421" @default.
- W4213047999 hasPublicationYear "2022" @default.
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