polyamide 6

Ultrafine phase change nanofibers based on polyethylene glycol 1000 (PEG1000) as phase change material (PCM) and polyamide 6 (PA6) as a supporting material were prepared in a systematic manner planned by the Design-Expert® software using the uniaxial electros-pinning. Research surface methodology (RSM) was carried out to optimize the parameters and conditions leading to minimize the fiber diameter. The effect of PEG content, applied voltage, needle gauge, and flow rate on the fiber characteristics was studied by a central composite design (CCD).

Thermomechanical studies of polamide 6 compositions, modified with (MPM) montmorillonite-polyvinylpyrrolidone mixture, were performed. Polyamide 6 nanocomposites were obtained by the solution deposition. The influence of nanocomposite production conditions on morphological features of polymer blends were researched. Determination of thermomechanical properties makes it possible to define the optimal content of MPM in polyamide 6 blends.

Physico-chemical properties of developed nickel-containing modified silicate materials as the nucleators for composites based on polyamide 6 are presented. As it was established, additive of the nucleator modified by polyvinylpyrrolidone promotes the increase of crystallinity degree of polyamide 6 and the decrease of crystallite size. It was found that changes in the structure of the material cause the increase of its tensile strength, surface hardness and Vicat softening point.