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

•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.

ABSTRACTIn 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 5.3 μm and thickness of 115 nm 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 2 wt.% 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.

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