Synthesis of layered titanosilicate JDF-L1 for fabrication of composite polyamide 6 film

• Published in: Applied clay science 2015-12, Vol.118, p.151-157
• Main Authors: Rubio, César, Piera, Elena, Caballero, Miguel Ángel, Téllez, Carlos, Coronas, Joaquín
• Format: Article
• Language: English
• Subjects: Directional orientation; Hybrid composites; Layered titanosilicate; Permeation; Polyamide
• ISSN: 0169-1317; 1872-9053
• DOI: 10.1016/j.clay.2015.09.011

In clay polymer nanocomposite technology, nowadays there is concern about the safety and environmental effects of the nanometric materials. In this work, sheets of layered titanosilicate JDF-L1 were synthesized with a size of 5.3μm and thickness of 115nm and used to fabricate composite polyamide 6 (PA6) films. The JDF-L1 synthesis was scaled in one pot and the rosette-like particles obtained were disaggregated using a simple process with NaOH solution. The composite with 2wt.% of disaggregated JDF-L1, characterized by X-ray diffraction and electron microscopy, showed parallel orientation (with respect to the film itself) and good dispersion of the sheets. The composite had a similar barrier effect as the PA6 and its mechanical properties did not deteriorate. This opens up the use of this composite as a packing material providing other properties, such as a biocidal effect and synergy effect in combination with other additives. [Display omitted] •Sheets of layered titanosilicate JDF-L1 have been synthesized.•JDF-L1 has been used to fabricate composite polyamide 6 (PA6) films.•The composite showed parallel orientation and good dispersion of the sheets.•The composite can be used as a packing material.