Results of research of change physic, mechanical and operational processing behavior of polyvinylchloride compositions are given at introduction of sulfur based additives. It is established that introduction of 0,5-1 masses. parts of sulfur based additives allows to improve heat stability, melt flow rate and durability of compositions. Improvement of properties can result from course of processes of structuring: at the expense of formation of sulfur bridges between macromolecules of polyvinylchloride or at the expense of formation of mixed double bonds between atoms of sulfur and atoms of chlorine and oxygen of ketochlorallils group in polyvinylchloride macromolecule.
поливинилхлорид, сера, полисульфид, сульфид натрия, polyvinylchloride, sulfur, polysulfide, sodium sulfide
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