Effect of solid lubricant silicone powder on the fluidity and properties of polyarylene ether nitrile nanocomposite

Improving the processing performance of polymers is an eternal topic in the polymer field. As a processing aid, solid lubricants improve the shortcomings of liquid lubricants that are easy to migrate. In this work, silicone powder was introduced into polyarylene ether nitrile (PEN)/multi-walled carbon nanotubes (MWCNTs) composites as a solid lubricant to improve the flowability and processability. Firstly, the effects of silicone powder and MWCNTs on the mechanical properties, thermal properties, dielectric properties and rheological properties of the composites were investigated. The experimental results show that the fluidity of the composites is improved obviously by adding silicone powder. In addition, a comparative experiment was carried out. Compared with PEN/MWCNTs composites, PEN/silicone powder/MWCNTs composites have better processing properties and dielectric properties. The complex viscosity is 308.1 at 10(2) Hz and the dielectric constant is 1 x 10(5) at 10(3) Hz. Therefore, silicone powder is of great research value as a solid lubricant in the field of polymer-based functional materials.

Automated summary

In this study, silicone powder was introduced into PEN/MWCNTs composites as a solid lubricant to improve flowability and processability. The experimental results showed that the addition of silicone powder significantly improved the fluidity of the composites and enhanced their processing and dielectric properties.