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Citation: WU Yan, QIAN Jia-Sheng, MIAO Ji-Bin, XIA Ru, ZHANG Yu-Chuan. Surface Modification of Nano-Si₃N₄ Particles with Low-molecular-mass CSM[J]. Chinese Journal of Applied Chemistry, ;2009, 26(6): 629-632. shu

Surface Modification of Nano-Si₃N₄ Particles with Low-molecular-mass CSM

1.
School of Chemistry & Chemical engineering, Anhui University, The Key Laboratory of Environment-Friendly Polymer Materials of Anhui Province, Hefei 230039

Corresponding author: QIAN Jia-Sheng,
Received Date: 24 May 2008
Available Online: 20 October 2008
Fund Project: 国家支撑计划课题(2007BAE22B02) (2007BAE22B02)安徽省教育厅自然科学基金(Kj2007A044)资助项目 (Kj2007A044)

Low-molecular-mass CSM was prepared by degrading CSM,and it was used to modify silicon nitride nanoparticles(Si₃N₄).The structure and surface properties of modified nano-Si₃N₄ were systematically characterized by FTIR,TEM,TGA,dispersion stabilization and contact angle measurement.The result shows that chemical modification is primary,the chemical and physical usage efficiencies of the macromolecular coupling are 54% and 29% respectively.The surface free energy of modified nano-Si₃N₄ has been decreased from 142.6 J/M² to 66.89 J/M²,resulting in a good dispersibility of nano-Si₃N₄ in chloroform.
- low-molecular-mass CSM,
- silicon nitride nanoparticles(Si₃N₄),
- macromolecular coupling agent
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Surface Modification of Nano-Si₃N₄ Particles with Low-molecular-mass CSM