Preparation and characterization of nano‐Sb₂O₃/poly(butylene terephthalate) composite powders based on high‐energy ball milling

Abstract

In this work, a kind of composite powders with good dispersion and distribution of nano-Sb 2 O 3 particles in poly(butylene terephthalate) (PBT) was prepared by the high-energy ball milling (HEBM). The effects of the milling time on the structure, morphology, particle size distribution, and thermal behavior of the nano-Sb 2 O 3 /PBT composite powders were characterized by Fourier transform infrared spectroscopy, scanning electron microscope, laser diffraction particle size analyzer, and thermal analysis (TGA, DTG and DSC) techniques. The results showed that the regular shape of PBT powders was converted into flakes and the nano-Sb 2 O 3 particles were well deagglomerated and better dispersed in the PBT matrix during the HEBM process. The mechanochemical activation that was provided by the HEBM process caused a reduction in the molecular weight of PBT, which result in favoring the first step of thermal degradation. Furthermore, two T g 's were obtained in the case of the nanocomposite powders when the milling time was over 3 h, one of them being slightly higher than that of the pure PBT, which indicated that there was a special interaction between PBT and nano-Sb 2 O 3 particles. However, the HEBM process leaded to a decreasing of the PBT crystallinity. J. VINYL ADDIT. TECHNOL., 25:91-97, 2019.

Effect of Mechanical Alloying in Polymer-Ceramics Composites

“…Furthermore, two T g s were attained in the case of the nanocomposite powders when the milling time was over 3 hours, one of them being slightly higher than that of the pure PBT, which showed that there was a special interaction between PBT and nano-Sb 2 O 3 particles. However, the HEBM process led to a decrease of the PBT crystallinity (Yang et al 2018(Yang et al , 2019. The authors further explained (PBT) nanocomposites contained modified nano-Sb 2 O 3 particles were dispersed by two different dispersing techniques, included high speed rotating to disperse (HSR) and high-energy ball milling to disperse (HEBM).…”