Synthesis and characterization of inorganic polymers from the alkali activation of an aluminosilicate

The International Congress of Mechanical Engineering and Agricultural Sciences 2013

机械制造;农业科学

González, C.P.^1 ; Montaño, A.M.^1,2 ; González, A.K.^2 ; Ríos, C.A.^3

Grupo de Investigatión en Materiales gIM, Departamento de Ciencias Básicas, Seccional Bucaramanga, Bucaramanga, Colombia^1

Escuela de Química, Universidad Industrial de Santander, Bucaramanga, Colombia^2

Grupo de Investigatión en Geología Básica y Aplicada (GIGBA), Escuela de Geología, Universidad Industrial de Santander, Bucaramanga, Colombia^3

关键词: 3D networks;    Activating agents;    Alkali activation;    Alkaline activation;    Degree of polymerization;    FTIR spectroscopy;    Sodium silicate;    Synthesis and characterizations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/59/1/012001/pdf
DOI  :  10.1088/1757-899X/59/1/012001

学科分类：农业科学（综合）

来源: IOP

【 摘 要 】

This paper presents the results of the synthesis and characterization of inorganic polymers (IP) from aluminosilicates: bentonite (BT) and pumice (PP). The synthesis of IP, was carried out by two methods involving alkaline activation, at room temperature and 80 ± 5 °C, using as activating agent sodium silicate both commercial and analytical (Na2SiO3). Sodium hydroxide (NaOH) at 3 M, 7 M and 12 M was added. A lower degree of polymerization was obtained by using analytical precursors subjected to room temperature and 80 ± 5°C. Replacement of heating by the use of the commercial activating agent with greater alkalinity allows the formation of a 3D network. The materials were structurally characterized by FTIR spectroscopy with Attenuated Reflectance (ATR), Scanning Electron Microscope (SEM) and X -ray diffraction (DRX).