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Polymorphic Crystallization and Diversified Growth of CaCO 3 in HPAM‐HABS‐Na 2 SiO 3 Hybrid Solutions
Author(s) -
Shi Weiguang,
Zhang Shangshang,
Wang Yanling,
Wang Jun,
Li Benxian,
Liu Xiaoyang,
Liu Xiangbin,
Wang Qingguo,
Cheng Jiecheng
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201800444
Subject(s) - crystallization , chemical engineering , ternary operation , polyacrylamide , pulmonary surfactant , phase (matter) , crystal (programming language) , hydrolysis , morphology (biology) , crystal growth , materials science , polymer , chemistry , crystallography , polymer chemistry , organic chemistry , geology , composite material , paleontology , computer science , engineering , programming language
CaCO 3 crystallization is a controversial topic hampered in part by the lack of empirical evidence of the growth of polymorphic crystals. In this work, great effort has been made to investigate the polymorphic crystal growth mechanism and the diversified morphologies, including peanut, shuttle, worm‐like and irregular cubic CaCO 3 that occur in hydrolysed polyacrylamide (HPAM) ‐ heavy alkylbenzene sulfonate (HABS) ‐ Na 2 SiO 3 hybrid system. It is verified that silica has an inhibition effect during the phase‐transformation of CaCO 3 . With the addition of HPAM, a new morphology of CaCO 3 composited with CaCO 3 fibres was received in the HPAM‐Na 2 SiO 3 mixed solution. In the ternary additive system, the template effect of HPAM is undermined by HABS, and HPAM forms a new polymer‐surfactant complex conformation. Meanwhile, the inhibition effect of silica is weakened with the increase of organics.