南京工业大学学报（自然科学版）2013，Vol.35Issue(4)：21-25,5.DOI:10.3969/j.issn.1671-7627.2013.04.005
NaOH溶液浓度及反应时间对偏高岭土地质聚合反应的影响
Effects of NaOH solution concentration and reaction time on metakaolin geopolymerization
摘要
Abstract
The products of metakaolin (MK) activated by NaOH solutions with different concentration and reaction time were analyzed by means of isothermal conductive calorimetry (ICC),X-ray diffraction (XRD) and Fourier transform infrared (FT-IR).The results showed that when metakaolin was activated by 10 and 12 mol/L NaOH solutions at 40 ℃,the resulted products were Na-A zeolite and geopolymer,respectively.In the early reaction stage,the processes of dissolution,polymerization and reorganization decided the structure order of products and properties.To make sure that the amorphous geopolymeric gels would be formed in the alkali activation sytem,reaction conditions and activator concentration should be controlled to avoid the formation of zeolite.关键词
NaOH/偏高岭土/地质聚合物/沸石Key words
NaOH / metakaolin / geopolymer/ zeolite分类
化学化工引用本文复制引用
杨涛,姚晓,张祖华,诸华军..NaOH溶液浓度及反应时间对偏高岭土地质聚合反应的影响[J].南京工业大学学报（自然科学版）,2013,35(4):21-25,5.基金项目
国家高技术研究发展计划(863计划)(2006AA06Z225) （863计划）
