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Constructing hierarchical porous polyimide/reduced graphene oxide sponge as an oil-water separation material with a balanced performance in thermal stability, elasticity, and oil-adsorption.

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Title: Constructing hierarchical porous polyimide/reduced graphene oxide sponge as an oil-water separation material with a balanced performance in thermal stability, elasticity, and oil-adsorption.
Authors: Zhang, Zhenyu1 (AUTHOR), Li, Tao2 (AUTHOR), Ning, Xiaohui1 (AUTHOR), Yu, Ping1 (AUTHOR), Sachdeva, Rimika2 (AUTHOR), Bao, Lin1 (AUTHOR) baolin@nwu.edu.cn, Li, Yan1 (AUTHOR) yanli@nwu.edu.cn
Source: Composite Interfaces. Jun2026, Vol. 33 Issue 6, p1339-1348. 10p.
Subjects: Polyimides, Oil separators, Adsorption (Chemistry), Graphene, Porous materials, Elasticity, Thermal stability
Abstract: To overcome the low thermal stability of conventional polymers and the low elasticity of reduced graphene oxide (rGO) as oil-water separation materials, in this study, hierarchical porous polyimide/reduced graphene oxide (PI/rGO) sponges were prepared with SiO2, polyurethane (PU), polyether amine (PEA), and liquid paraffin (LP) templates, respectively. According to experimental results, all four types of PI/rGO exhibit ideal elasticity, wherein the PI/rGO (SiO2), PI/rGO (PEA), and PI/rGO (LP) further exhibit high thermostability and excellent adsorption capability in oil and organic solvents. This study proposed a new strategy to synthesize an oil-separation material with a balanced performance of thermal stability, elasticity, and oil-adsorption. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:To overcome the low thermal stability of conventional polymers and the low elasticity of reduced graphene oxide (rGO) as oil-water separation materials, in this study, hierarchical porous polyimide/reduced graphene oxide (PI/rGO) sponges were prepared with SiO2, polyurethane (PU), polyether amine (PEA), and liquid paraffin (LP) templates, respectively. According to experimental results, all four types of PI/rGO exhibit ideal elasticity, wherein the PI/rGO (SiO2), PI/rGO (PEA), and PI/rGO (LP) further exhibit high thermostability and excellent adsorption capability in oil and organic solvents. This study proposed a new strategy to synthesize an oil-separation material with a balanced performance of thermal stability, elasticity, and oil-adsorption. [ABSTRACT FROM AUTHOR]
ISSN:09276440
DOI:10.1080/09276440.2025.2575541