Sodium Alginate/Carboxyl-Functionalized Graphene Composite Hydrogel Via Neodymium Ions Coordination
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2017年第8期
论文作者：Qianqian Huang Shunli Liu Kewen Li Imtiaz Hussain Fang Yao Guodong Fu
文章页码：821 - 826
摘 要：A facile method for the preparation of sodium alginate（SA）/carboxyl-functionalized graphene（G-COOH）composite hydrogel was developed. Based on the coordination ability of lanthanide ions to the carboxyl groups, a series of hydrogel derived from different ratios of SA and G-COOH was fabricated by neodymium(Nd3+) ions coordination. A relatively uniform layered structure was recorded by SEM at the interior of SA/G-COOH hydrogel. Several parameters such as water content, swelling ratio（SR）, tensile test and solvent resistance were also investigated. The SA/G-COOH composite hydrogel showed excellent mechanical strength, and the tensile strength of SA/G-COOH composite hydrogel reaches 53.72 MPa at high water content. Due to the coordination ability of Nd3+ ions, the hydrogel also exhibited an excellent solvent resistance and stability.
Qianqian Huang，Shunli Liu，Kewen Li，Imtiaz Hussain，Fang Yao，Guodong Fu
School of Chemistry and Chemical Engineering, Southeast University
摘 要：A facile method for the preparation of sodium alginate（SA）/carboxyl-functionalized graphene（G-COOH）composite hydrogel was developed. Based on the coordination ability of lanthanide ions to the carboxyl groups, a series of hydrogel derived from different ratios of SA and G-COOH was fabricated by neodymium(Nd3+) ions coordination. A relatively uniform layered structure was recorded by SEM at the interior of SA/G-COOH hydrogel. Several parameters such as water content, swelling ratio（SR）, tensile test and solvent resistance were also investigated. The SA/G-COOH composite hydrogel showed excellent mechanical strength, and the tensile strength of SA/G-COOH composite hydrogel reaches 53.72 MPa at high water content. Due to the coordination ability of Nd3+ ions, the hydrogel also exhibited an excellent solvent resistance and stability.
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