суміш

Synthesis and Tailoring the Optimization and Dielectric Properties of PMMA/PEG/Barium Titanate Hybrid Nanostructures for Energy Storage and Electronics Applications

The present work aims to improve the dielectric properties of poly-methyl methacrylate (PMMA)- polyethylene glycol (PEG) blend doped with barium titanate (BaTiO3) nanoparticles to be useful in electronics and dielectric fields. The PMMA/PEG/BaTiO3 nanocomposite films were fabricated by using the casting method. The morphological and dielectric characteristics of PMMA/PEG/BaTiO3 nanocomposite films were tested. The dielectric characteristics were examined by LCR meter at frequencies ranging from 100 Hz to 5 MHz.

REGULARITIES OF THE TECHNOLOGICAL RAW MATERIAL CREATION FOR EXTRUSION OF POLYETHYLENE PIPES

The growing pace of Ukrainian polymer pipes market is significantly ahead of other markets for polymer products, which is being explained by the successful competition of their operational properties with pipes made of traditional materials - steel, cast iron, concrete.

Regarding this an important task during the production of water pressure pipes is the obtaining of technological raw materials based on polyethylene with the necessary technological capacity, which will solve the above problems.

Problems of the concept “mixture” interpretation and compatible terms in the educational literature

The problem of scientific accuracy of term “mixture” and corrersponding terms (“homogeneous mixture”, “heterogeneous mixture”, “homogeneous mixture”, “heterogeneous mixture”, “dispersed systems”) application in Ukrainian chemical literature for general education and higher education institutions is considered in the article.

Investigation of structure of nanocomposites on the basis of mixture of polypropylene and modified polyamide with using scanning electronic microscopy.

Mixtures based on polypropylene (PP) and polyamide (PA) are of great importance as structural materials, the mixing of which reduces the negative characteristics of the original polymers. Non-polar PP significantly reduces water absorption of the material during mixing with polar high hydrophilic PA. As a result, the effect of moisture on the mechanical and thermal properties of the composites decreases. On the other hand, mixing PP with PA can extend the temperature range of material exploitation at negative temperatures.