Organo-attapulgite was obtained by modifying attapulgite with hexadecyltrimethyl ammonium bromide.A new organo-attapulgite based superabsorbent composite was prepared by polymerization of organo-attapulgite dispersed ...Organo-attapulgite was obtained by modifying attapulgite with hexadecyltrimethyl ammonium bromide.A new organo-attapulgite based superabsorbent composite was prepared by polymerization of organo-attapulgite dispersed acrylamide,using N,N′-methylenebisacrylamide as a crosslinker and ammonium persulfate as an initiator.The structure,morphology,thermal stability of organo-attapulgite and the composite were characterized by FTIR,XRD,SEM,TEM and TGA,respectively.The results indicated that a nanocomposite was successfully obtained after incorporating organo-attapulgite into the polyacrylamide network.The thermal stability and water absorbency of the nanocomposite were improved greatly after the organification of attapulgite.Water absorbencies for the nanocomposite incorporated with 10 wt% HDTMA-APT in distilled water and in a 0.9 wt% NaCl solution were 2803 g g -1 and 121 g g -1,respectively.展开更多
文摘Organo-attapulgite was obtained by modifying attapulgite with hexadecyltrimethyl ammonium bromide.A new organo-attapulgite based superabsorbent composite was prepared by polymerization of organo-attapulgite dispersed acrylamide,using N,N′-methylenebisacrylamide as a crosslinker and ammonium persulfate as an initiator.The structure,morphology,thermal stability of organo-attapulgite and the composite were characterized by FTIR,XRD,SEM,TEM and TGA,respectively.The results indicated that a nanocomposite was successfully obtained after incorporating organo-attapulgite into the polyacrylamide network.The thermal stability and water absorbency of the nanocomposite were improved greatly after the organification of attapulgite.Water absorbencies for the nanocomposite incorporated with 10 wt% HDTMA-APT in distilled water and in a 0.9 wt% NaCl solution were 2803 g g -1 and 121 g g -1,respectively.
