Compatibility of rubbers with asphalt components and properties of artificial compounded asphalts

Journal Article · · Chem. Technol. Fuels Oils (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00730043· OSTI ID:7018409

Aleksandrova, S L; Kartashevskii, A I; Tirak'yan, V E

Improvements in the heat and cold resistance and the elasticity of asphalts by blending with rubber is one approach in developing polymer-compounded asphalts (PCAs) for various end-uses. The manifestation of the rubber properties in a mixture with an asphalt depends primarily on the compatibility of components, which determines the possible degree of dispersity of the rubber in the asphalt. In the reported experiments, the compatibility of a number of rubbers with asphalt components was studied in model systems consisting of asphaltenes, a solvent, and rubbers. The compatibility of rubber and asphaltenes in a common solvent is determined in the first approximation by the chemical nature of these components. It can be seen from experimental data that the SKEP ethylene-propylene rubbers, which have only saturated bonds, are practically incompatible with the asphaltenes, the basic structure of which consists of aromatic groupings. Butyl rubber, with a certain fraction of unsaturated bonds, is partially compatible with asphaltenes, both in the aromatic solvent and in the paraffinic/naphthenic solvent. Rubbers with aromatic groupings are completely compatible with asphaltenes in the aromatic solvent and are either incompatible or only compatible to a limited extent in the paraffinic/naphthenic solvent. 6 refs.

• OSTI ID: 7018409
• Journal Information: Chem. Technol. Fuels Oils (Engl. Transl.); (United States), Journal Name: Chem. Technol. Fuels Oils (Engl. Transl.); (United States) Vol. 17:7-8; ISSN CTFOA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020500* -- Petroleum-- Products & By-Products
023000 -- Petroleum-- Properties & Composition
36 MATERIALS SCIENCE
360301 -- Composite Materials-- Preparation & Fabrication-- (-1987)
360304 -- Composite Materials-- Physical Properties-- (-1987)
ASPHALTENES
ASPHALTS
BITUMENS
COMPOSITE MATERIALS
ELASTOMERS
MATERIALS
MIXING
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC SOLVENTS
OTHER ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
POLYMERS
RUBBERS
SOLVENTS
TAR
VISCOSITY