Properties of polymer composites on the basis polyvinyl alcohol with nanoparticles of copper
Properties of polymer composites on the basis polyvinyl alcohol with nanoparticles of copper
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The relevance of nitrile gloves in a bucket the discussed issue is caused by the increase interest of obtaining and using polymer composites with copper nanoparticles, possessing a number of specific properties for biomedicine researches like materials for tissues and cell engineering, medicine substance with control of secrete of drugs, in electronic and another fields of technics.The paper demonstrates the possibility of getting polymer composites on basis polyvinyl alcohol, Na-carboxymethyl cellulose or poly (acryl amid) and natrium tetraborate using copper nanoparticles.The main aim of the study is to obtain the polymer composites on the basis of water solutions of polyvinyl alcohol and Na-carboxymethyl cellulose or poly (acryl amid) with additives of sodium tetraborate and filler in the form of copper nanoparticles; to study their rheological and surface properties: effective viscosity, module elasticity and strength adhesion; to determine the oxidation level of copper nanoparticles with separate polymers and in the mixture with polymers as well as depending on polymer concentration.
The methods used in the study.Viscosimetric study of polymer composites was realized on rheoviscosimeter Rheotest-2, the elasticity module was defined by the method of spherical indenter penetration; the adhesion strength was studied by the method of metal ring perpendicular separation from the polymer body surface.The IR-spectra were recorded at the spectrometer Nicolet 5700.
The oxidation degree of copper nanoparticles was determined by difractometer DS DISCOVER with Gadds (Bruker, Germany).The results.It was shown for the first time that due to interdependent influence of the mixture components: polyvinyl alcohol, Na-carboxymethyl cellulose or poly (acryl amid) with sodium tetraborate and copper nanoparticles at formation of polymeric complex the effective viscosity and the elasticity module increase, the strength adhesion decreases in comparison with initial polymers.
The authors have carried out the comparative evaluation of the properties of the polymer compositions under study.Freezing of polymer compositions leads to large strengthening of the properties under study.Interaction of components of this polymer composition changes chemical compositions and structure of polymers.
In contrast with the initial polymers, their mixtures are insoluble in water.The results obtained on difractometer allows determining the oxidation level copper nanoparticles satisfyer pro penguin next generation with separate polymers and in mixture of polymers and the depending on their concentration.