Preparation and properties of HEC-P(AA-AMPS)highly absorbent polymer modified with halloysite/brucite fiber
The aqueous solution method was used to form the halloysite/brucite fiber-HEC-P(AA-AMPS)composite high absorbency polymer by co-polymerizing halloysite/brucite fiber-HEC-P(AA-AMPS)with acrylic acid(AA)and 2-acrylamido-2-methyl-1-propanesulfonic acid(AMPS)using ilmenite and magne-site fiber as the modifiers and hydroxyethyl cellulose(HEC)as the backbone.The water absorption multi-plicity of the resulting highly absorbent resin in deionized water,tap water,0.9%NaCl solution,and satu-rated Ca(OH)2 solution was 401.2,135.5,59.6,65.1 g/g when HEC,AMPS,halloysite,hydrotalcite fibers were doped with 0.53,1.50,0.20,0.1 g,respectively at 5 mL of AA.In addition,the pyrolysis res-idue of the prepared samples at 600℃was enhanced by 18.68%.The maximum positive stress increased from 5.74 N to 8.05 N at 50%deformation,and the mechanical strength was similarly improved.
high-absorbent polymerhalloysitebrucite fibermodificationwater-absorbent ratio
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