Dispersion stability of nano-Sb2O3 particles modified with polyethylene glycol

作者：Yang, Wenlong; Xu, Jianlin^*; Niu, Lei; Zhao, Jinqiang; Wang, Chengcheng; Liu, Xiaoqi

来源：Particulate Science and Technology, 2018, 36(7): 844-849.

DOI：10.1080/02726351.2017.1305027

• Dispersion stability
• mechanochemical
• nano-Sb2O3
• polyethylene glycol
• surface modification

The surface of nano-Sb2O3 particles was modified with polyethylene glycol (PEG) using the mechanochemical method, and the dispersion mechanism of modified nano-Sb2O3 particles was also discussed. The modified nano-Sb2O3 particles were characterized by transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), thermal analysis (TGA) and UV absorbance. The results showed that the surface of nano-Sb2O3 particles was successfully coated by PEG molecules through the effect of hydrogen bonding, and the dispersion of nano-Sb2O3 particles in ethyl alcohol (C2H5OH) was significantly improved. Due to the different adsorption conformations of PEG molecules, the dispersion stability of nano-Sb2O3 particles was gradually improved with the increase of PEG average molecular weight and concentration. However, the superfluous PEG molecules would weaken the dispersion stability of nano-Sb2O3 particles.

• 出版日期2018
• 单位兰州理工大学