Antibacterial and anti-flaming PA6 composite with metathetically prepared nano AgCl@BaSO₄ co-precipitates

Abstract

In this study, a facile and environmentally friendly method with low energy consumption for preparing nanoscale AgCl and BaSO₄ co-precipitates (AgCl@BaSO₄ co-precipitates) was developed based on the metathetical reaction. Then, the dried co-precipitates were melt-compounded with polyamide 6 (PA6) resins at a specified mass ratio in a twin-screw extruder. The results demonstrated that in the absence of any coating agent or carrier, the nanoparticles of AgCl@BaSO₄ co-precipitates were homogeneously dispersed in the PA6 matrix. Further analysis showed that after the addition of AgCl@BaSO₄ co-precipitates, the antibacterial performance, along with the flame-retardance and anti-dripping characteristics of PA6, was enhanced significantly. In addition, the PA6 composites possessed high spinnability in producing pre-oriented yarn.

Graphical abstract

Keywords

nano AgCl@BaSO₄ co-precipitates / antibacterial / flame resistance / PA6 composite / PA6 yarn

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Acknowledgments

This project was financially supported by the National Key Research Program of China (Grant No. 2016YFB0302702) and the Open Foundation of National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources (Grant No. KF201804).

Electronic Supplementary Material

Supplementary material is available in the online version of this article at https://doi.org/10.1007/s11705-020-1942-9 and is accessible for authorized users.

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