| 摘要 |
FIELD: chemical industry, particularly, production of pigment concentrate used in dyeing of polymer compositions. SUBSTANCE: compositions of dyeing of polymers contains polymer in the form of butadiene nitrile rubber, plasticizer in the form of dibutyl phthalate and dye. Content and type of dye depends on composition color. Dyes are used of inorganic and organic nature. Significant distinguishing feature of the composition for dyeing of polymer is combined use of butadiene-nitrile rubber, dibutyl phthalate and dye in the offered amounts. Composition for dyeing of polymer is produced in rubber mixer at temperature of 80-90 C. It is granulated in extruder. For dyeing of flexible PVC 5% of composition is added to 100% of flexible PVC. In so doing, composition modifies the properties of cast flexible PVC to improve them. Composition improves mechanical, physical and adhesive properties of PVC. Using various combinations of amounts of composition and PVC, the PVC properties may be changed in the required range. Composition is also used for dyeing of divinyl styrene thermoelastoplastics. EFFECT: improved mechanical and physical properties of cast PVC systems, extended field of application as it is used not only for dyeing cast PVC systems but also thermoplastics, simplified compounding and production process of the composition. 1 cl, 5 tbl |
