Synthesis of Ultradispersed Powders from Products of Polytetrafluoroethylene Pyrolisis

Abstract

The method of obtaining ultradispersed powders from the gas phase of PTFE pyrolysis products is presented in this review. The fact that nanoaerosols form in the gas medium was stated. The monoparticles with various structures are formed from nanoaerosols. The monoparticles in their turn organize composite formations. The ultradispersed powder consists of two PTFE fractions (low- and high-molecular). The differences of fraction structures are revealed by various physical methods. The industrial-scale production of the obtained powder was demonstrated.

Keywords

• polytetrafluoroethylene powder
• nanomaterials
• structure
• properties