Preparation and Hygroscopic Property of the Polyacrylamide/MgCl2 Hybrid Hydrogel

Ying Wang; Li Ren Fan

doi:10.4028/www.scientific.net/AMR.550-553.904

Paper Titles

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Extrusion Foaming System for Fabricating Open-Cell Structure of Low Density Polyethylene (LDPE)
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Preparation and Study of Polystyrene Magnetic Microspheres
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Studies on the Modification of Polypropylene for the Detection Cable
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Preparation and Hygroscopic Property of the Polyacrylamide/MgCl₂ Hybrid Hydrogel
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Extracting Plasticizer from Polyvinylbutyral Plastics by Supercritical Fluid
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Study on the Thermal Degradation Behaviors of the Sheath and Insulation Materials of FR-PVC Cables
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Improving Gypsum Slurry Filtration in the Production of Phosphoric Acid by Adding Cationic Amphiphilic Copolymer
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Study of a Real Fluid Flow Axial Symmetry in a Cylindrical Cavity
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 550-553Preparation and Hygroscopic Property of the...

Preparation and Hygroscopic Property of the Polyacrylamide/MgCl₂ Hybrid Hydrogel

Abstract:

Polyacrylamide/MgCl₂ hybrid hydrogel desiccant was prepared from magnesium chloride and polyacrylamide by aqueous solution polymerization. The hybrid hydrogel was synthesized and characterized by X-ray diffraction. The effect of the experimental factors such as content of magnesium chloride, concentration of cross-linking agent, initiator content on hygroscopic performance of the hybrid hydrogel were investigated, furthermore, the hygroscopic swelling kinetic process of the hybrid hydrogel was studied. The results indicate that hybrid hydrogel possessed preferable hygroscopic property under the optimum conditions, the hygroscopic swelling degree achieving 172%. The hygroscopic swelling process of the hybrid hydrogel follows the kinetic pseudo-second-order model, in addition, the swelling rate decreases with the increase of relative humidity.