Premium
A new cation‐modified A l‐polyacrylamide flocculant for solid–liquid separation in waste drilling fluid
Author(s) -
Zhang Yongming,
Miao Zongcheng,
Zou Jing
Publication year - 2015
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.41641
Subject(s) - polyacrylamide , flocculation , cationic polymerization , thermogravimetric analysis , polymerization , fourier transform infrared spectroscopy , ammonium chloride , materials science , chemical engineering , nuclear chemistry , scanning electron microscope , drilling fluid , chemistry , polymer chemistry , polymer , organic chemistry , composite material , drilling , engineering , metallurgy
A new cation‐modified Al‐polyacrylamide (CAPAM) flocculant was prepared by the in situ polymerization of acrylamide (AM) and (2‐methacryloyloxyethyl) trimethyl ammonium chloride (DMC) with Al(OH) 3 sol. The optimum preparation conditions were obtained by a one‐factor experimental design: as the amount of AlCl 3 was fixed at 0.025 mol, the polymerization time, polymerization temperature, n (AM) : n (AlCl 3 ), n (DMC) : n (AlCl 3 ), and n (K 2 S 2 O 8 ) : n (AM) were 4 h, 70°C, 8, 0.9, and 1.82 × 10 −3 , respectively. The CAPAM was characterized by thermogravimetric analysis, Fourier transform infrared spectroscopy, scanning electron microscopy, and transmission electron microscopy. The solid–liquid separation performance of the CAPAM was evaluated in terms of water content. The CAPAM showed better flocculation performance than cationic polyacrylamide and polyaluminum sulfate at a fixed concentration of 0.3% in waste drilling fluid and tended to perform well in alkaline solution. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41641.