| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to methods of producing thermoplastic elastomer compositions, realised through dynamic vulcanisation of a mixture of components of a composition, meant for preparing sealing components, tubing, insulation for components of electric devices, used in aviation, automobile, cable and other industries. The method is realised by loading an ethylene-propylene-diene copolymer and target additives at the first step. Temperature is raised to 120C and vulcanising agents are added. At temperature of 150C, thermoplastics are added - polyethylene and polypropylene in amount of 30-50 wt % of their total content and stirring is done at temperature of 190C. At the second step the remaining amount of thermoplastics is added to the obtained mixture. ^ EFFECT: obtaining a thermoplastic elastomer composition with improved mechanical, rheological and electrical characteristics. ^ 3 cl, 1 tbl, 3 ex |
