Investigating the Thermal and Thermophysical Properties of Composite Materials Based on Polyethylene Terephthalate and Superconcentrates of Layered Silicate Nanoparticles in Cyclic Butylene Terephthalate

New composite materials based on polyethylene terephthalate and superconcentrates of layered silicate nanoparticles in cyclic butylene terephthalate were developed and investigated. It was shown that the obtained concentrates of nanoparticles are sufficiently thermally stable for the modification of heat-resistant polymer matrices and increase the thermal and processing properties of the polyethylene terephthalate without lowering the molecular weight. By differential scanning calorimetry it was shown that the concentrates of layered silicate nanoparticles act as nucleators for the crystallising PET.