ВЛИЯНИЕ ВИДА ТЕРМОЭЛАСТОПЛАСТОВ И ТЕМПЕРАТУРЫ НА ВРЕМЯ КОМПАУНДИРОВАНИЯ РАЗЛИЧНЫХ НЕФТЯНЫХ БИТУМОВ
Стр.6-13
DOI:10.32758/2782–3040-2025-0-5-6-13
УДК 665.775
Stupak S. V., Kapustin V. M.
(Russian State University of Oil and Gas (NRU) named after I.M. Gubkin, Moscow, Russia)
Abstract. The article presents the possibility of modifying various petroleum bitumens with thermoplastic elastomers using a laboratory mixer with a high shear force, model L5M — A. Special Data Logger software allows you to record the time of complete dissolution of modifiers in petroleum bitumens.
Increasing the compounding temperature from 120 C to 150 C reduced the mixing time by 1.2 — 3.2 times. Dissolution of a radial chain modifier (structure) in bitumen takes 20% longer than a linear chain modifier (structure).The use of a special Duplex mixing nozzle reduces the time for complete dissolution of thermoplastic elastomers in petroleum bitumen by 2.2 — 3.3 times. The resulting samples of modified bitumen passed the homogeneity test according to paragraph 6.1 of GOST R 52056-2003.
Keywords: petroleum bitumens; styrene-butadiene-styrene rubber (SBS, SBS). Brands: DST L 30-01 (linear chain) and SBS R 30-OOA (radial chain), laboratory mixer with high shear force model L5M – A; standard mixing unit; special Duplex mixing nozzle; modified bitumen; homogeneity testing according to clause 6.1 of GOST R 52056-2003.