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Synthesis and properties of polyacrylamide/hollow coal gangue spheres superabsorbent composites
Author(s) -
Li Yang,
Ren Nana,
Wang Yanzhong,
Huang Jin,
Liu Wei,
Su Zhenguo,
Yang Jinlong
Publication year - 2013
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.39441
Subject(s) - polyacrylamide , ammonium persulfate , materials science , superabsorbent polymer , aqueous solution , chemical engineering , persulfate , polymerization , composite material , acrylamide , absorption of water , polymer chemistry , chemistry , copolymer , polymer , organic chemistry , catalysis , engineering
Polyacrylamide/hollow coal gangue spheres (PAM/HCGS) superabsorbent composites were prepared by in situ aqueous solution polymerization using N,N′‐methylenebisacrylamide (MBA) as a crosslinker and ammonium persulfate (APS) as an initiator. PAM/HCGS composites exhibit the good water and salt absorption with 5 wt % HCGS, 0.14 wt % crosslinker, and 0.56 wt % initiator. Water retention of PAM/HCGS (5 wt %) retains 43% at 60°C for 24 h, which is much better than that of pure polyacrylamide. It suggests that the addition of HCGS increase the strength of swollen gel. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 2184–2187, 2013
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