Title: Preparation and characterization of poly(acrylic acid-co-acrylamide)/hydrotalcite nanocomposite superabsorbent
Abstract: The hydrotalcite (HT) synthesized with urea method was used to prepare intercalated HT (SMAS-HT) by using methyl allyl sulfonate (SMAS) as an intercalation agent.A novel poly (acrylic acid-co-acrylamide)/HT nanocomposite superabsorbent was prepared by inverse polymerization, using N,N′-methylenebisacrylamide (NMBA) as a crosslinking agent and potassium persulfate (KPS) as an initiator.The structure and morphology were characterized by FTIR, XRD and SEM.The influences of the amount of SMAS-HT on the water (salt) absorbency were studied.The results showed that the intercalation was successful and SMAS-HT was completely exfoliated after polymerization.Adding a small amount of SMAS-HT could effectively improve the water (salt) absorbency of nanocomposite superabsorbents.The nanocomposite superabsorbents had their highest water (salt) absorbency when the content of SMAS-HT was 3.0%(mass).
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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