Polymorphic Crystallization and Diversified Growth of CaCO3 in HPAM‐HABS‐Na2SiO3 Hybrid Solutions,ChemistrySelect

当前位置： X-MOL 学术 › ChemistrySelect › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Polymorphic Crystallization and Diversified Growth of CaCO3 in HPAM‐HABS‐Na2SiO3 Hybrid Solutions
ChemistrySelect ( IF 1.9 ) Pub Date : 2018-06-08 , DOI: 10.1002/slct.201800444
Weiguang Shi ₁ , Shangshang Zhang ₁ , Yanling Wang ₁ , Jun Wang ₁ , Benxian Li ₂ , Xiaoyang Liu ₂ , Xiangbin Liu ₃ , Qingguo Wang ₃ , Jiecheng Cheng ₃

Affiliation

CaCO₃ 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 CaCO₃ that occur in hydrolysed polyacrylamide (HPAM) ‐ heavy alkylbenzene sulfonate (HABS) ‐ Na₂SiO₃ hybrid system. It is verified that silica has an inhibition effect during the phase‐transformation of CaCO₃. With the addition of HPAM, a new morphology of CaCO₃ composited with CaCO₃ fibres was received in the HPAM‐Na₂SiO₃ 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.

中文翻译：

HPAM-HABS-Na2SiO3混合溶液中CaCO3的多晶型结晶和多样化生长

CaCO ₃结晶是一个有争议的话题，部分由于缺乏多晶型晶体生长的经验证据而受阻。在这项工作中，我们付出了巨大的努力来研究水解聚丙烯酰胺（HPAM）-重烷基苯磺酸盐（HABS）中出现的多晶型晶体生长机理和多样化形态，包括花生，穿梭，蠕虫状和不规则立方CaCO _3- Na ₂ SiO ₃杂化体系。证实了二氧化硅在CaCO ₃的相变过程中具有抑制作用。通过添加HPAM，HPAM-Na _2中收到了一种新形态的CaCO ₃与CaCO ₃纤维复合的形态SiO ₃混合溶液。在三元添加剂体系中，HABS破坏了HPAM的模板作用，HPAM形成了一种新的聚合物-表面活性剂复合物构象。同时，二氧化硅的抑制作用随着有机物的增加而减弱。

更新日期：2018-06-08

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11