Powders of rGO-coated polyamide with special electrical properties for SLS 3D printing

Author:

Torkunov Mikhail1,Shiyanova Kseniya1,Verkhova Elizaveta2,Yulovskaya Victoria2,Ryvkina Natalia1,Melnikov Valery1ORCID,Gudkov Maksim1ORCID,Chmutin Igor2

Affiliation:

1. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, Russia

2. MIREA - Russian Technological University, Moscow, Russia

Abstract

Developing new polymer composites with special properties for 3D printing is one of the most attractive tasks. In our study, we have developed new polymer powders based on rGO-coated polyamide suitable for Selective Laser Sintering (SLS) printing. The obtained materials were characterized using optical microscopy, UV-Vis spectroscopy, scanning electron microscopy and dielectric spectroscopy. The size distribution of the powder particles, the angle of rest after an avalanche, the compactibility (Hausner ratio), the optical properties (absorption and transmission) of the powder monolayer, and the electrical conductivity of the obtained materials have been studied. It has been shown that the developed powders are suitable for the use in the framework of the SLS method, and can be applied to remove static electricity, as well as in reflective screens for electromagnetic radiation.

Funder

The Program of Fundamental Researches of the Russian Academy of Sciences

Publisher

SAGE Publications

Subject

Materials Chemistry,Mechanical Engineering,Mechanics of Materials,Ceramics and Composites

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