Issue 37, 2009
From the journal:

Journal of Materials Chemistry

Synthesis of α-layered sodium disilicate and its tribological properties in liquid paraffin†

Hong Xu,a   Yajie Wang,a   Huafeng Li,b   Lei Liu,a   Feng Deng,c   Guoxu Chen,b   Jinping Lia  and  Jinxiang Dong*a  

* Corresponding authors

a Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan, P. R. China
E-mail: dongjinxiangwork@hotmail.com

b Department of Oil Application & Management Engineering, Logistical Engineering University, Chongqing, China

c State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan, P. R. China

Abstract

A high purity α-layered sodium disilicate (α-Na2Si2O5) has been synthesized by employing a mixture of 84% α-Na2Si2O5 and 16% δ-Na2Si2O5 as seed, and characterized by XRD, 29Si MAS NMR, FT-IR, SEM and TG. The experimental data showed that α-layered sodium disilicate may been synthesized by adding 15% seed at 780 °C for 120 minutes. The lubrication of the synthesized sample was investigated. Adding α-Na2Si2O5 in liquid paraffin, the PB value increased by 19.9%. The results indicated that oleic acid may pillar α-layered sodium disilicate. The reaction may increase the separation of layers. An increasing layer distance will be propitious for the glide of silicon layers and improve lubrication ability.

Graphical abstract: Synthesis of α-layered sodium disilicate and its tribological properties in liquid paraffin

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Article information

DOI
https://doi.org/10.1039/B908799K
Article type
Paper
Submitted
05 May 2009
Accepted
09 Jul 2009
First published
05 Aug 2009

J. Mater. Chem., 2009,19, 6896-6900

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Synthesis of α-layered sodium disilicate and its tribological properties in liquid paraffin

H. Xu, Y. Wang, H. Li, L. Liu, F. Deng, G. Chen, J. Li and J. Dong, J. Mater. Chem., 2009, 19, 6896 DOI: 10.1039/B908799K

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