Chemical and thermal Properties Properties of compositions based on PAA, PVA and Na-CMS for printing flowers on silk fiber fabrics

In the article, the rheological properties of the adhesive-binding systems used in production enterprises and the newly developed polymer systems are studied. In order to determine the thermal stability of the developed systems, a thermal analysis of thickeners with different compositions was carried out. Mass loss was observed in the heating curve of the thickener based on PAA, PVA and Na-CMS. Endothermic effects observed during heating can be caused by physical phenomena such as liquefaction, evaporation, changes in crystal structure, or chemical reactions such as dehydration. The rheological properties of imported sodium alginate, a thickener based on PAA, PVA and Na-CMS, were compared with the properties of the adhesive-binding polymer system with a new composition. It was found that the rheological properties of the proposed new composition thickener are close to the rheological properties of sodium alginate. It was proved during the experiments that the level of thixotropic recovery is especially high in the polymer system with a new composition. When used as an adhesive-binder for silk fiber fabrics with newly developed thickeners, in addition to improving the physical and mechanical properties of the fabric, the wastewater generated at the stage of washing the fabric after flower pressing does not have a negative impact on the environment and the world of living plants.