polymer composite

Filling of polymer hydrogels by nanoparticles of the hydroxyapatite

In this work was development of new methods of synthese the hydrogel composites with nanoparticles of hydroxyapatite using sol-gel synthesis. At first the nanoparticles were synthesized in the presence of the peroxide oligomers which at the next stage provided polyacrylamide grafting on to the surface nanoparticles; that resulted in formation of the powder-xerogels capable to turn in to hydrogels. In accordance with other approach, the hydrogels filled were formed via in situ synthesis of the hydroxyapatite nanoparticles directly inside of the crosslinked polyacrylamide gels.

Modification of the chalk by plant oils

The processes of modification chalk by vegetable oils, to obtain polymeric composites were investigated. Hydrophobic process can be used in the construction industry too. Investigated the kinetics of filler modification in various natural environments. A physical-mechanical analysis of obtained polymer composites polyvinyl chloride and polystyrene was conducted. These studies have shown an increase in impact strength and good plasticizing properties, which leads to improved performance properties.