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

• Published in: Frontiers of chemical science and engineering Vol. 15; no. 2; pp. 340 - 350
• Main Authors: Zhang, Wei, Xu, Boren, Gong, Caihong, Yi, Chunwang, Zhang, Shen
• Format: Journal Article
• Language: English
• Published: Beijing Higher Education Press 01.04.2021; Springer Nature B.V
• Subjects: Antiinfectives and antibacterials; Barite; Barium sulfate; Chemical precipitation; Chemistry; Chemistry and Materials Science; Energy consumption; Industrial Chemistry/Chemical Engineering; Nanoparticles; Nanotechnology; Polyamide resins; Precipitates; Research Article; Silver chloride; Twin screw extruders; flame resistance; nano AgCl@BaSO; antibacterial; co-precipitates; PA6 yarn; PA6 composite
• ISSN: 2095-0179; 2095-0187
• DOI: 10.1007/s11705-020-1942-9

In this study, a facile and environmentally friendly method with low energy consumption for preparing nanoscale AgCl and BaSO 4 co-precipitates (AgCl@BaSO 4 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@BaSO 4 co-precipitates were homogeneously dispersed in the PA6 matrix. Further analysis showed that after the addition of AgCl@BaSO 4 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 preoriented yarn.