Comparison of Bitumen Modified by Phenol Formaldehyde Resins Synthesized from Different Raw Materials

Abstract

Phenol formaldehyde resins were obtained by polycondensation of a mixture of phenols (technical or "raw" phenols) obtained from the phenolic fraction of coal tar. The resulting resin approximately consists of 1/3 of phenol and 2/3 of cresols. The obtained resins were compared with industrial phenol formaldehyde resins, the raw material of which is pure (synthetic) phenol. The possibility of using the obtained resins as modifiers of road petroleum bitumen has been established, especially as adhesive promoters to bitumen. It is shown that the addition of these resins significantly increases the adhesion to the surface of granite rubble and glass. Adhesion to the glass surface increases for PhCR-F from 33 to 87%; for Iditol from 33 to 90% and adhesion to the crushed stone surface for PhCR-F from mark 3 to mark 5; for Iditol from mark 3 to mark 5. This indicates that PhCR-F and Iditol can used as adhesive additives for oil road bitumen Keywords: Bitumen Á Phenol Á Cresol Á Phenol formaldehyde resin Á Modifier Á Adhesion promoters

Improved Method for Determining Microbiological Contamination of Fatty Acid Methyl Esters and Blended Diesel Fuels

“…Further works of A.M. Nastyukov, as well as the research of A. Bayer laid the foundation for numerous studies in the field of arene-formaldehyde polycondensations, which gave an impetus to the production of various types of resins, which are still widely used. [6][7][8][9][10] At the Department of Chemical Technology of Oil and Gas Processing of the Lviv Polytechnic National University, research is being conducted related to the production of arene [11][12][13][14][15][16][17][18][19][20][21][22][23] and phenolformaldehyde [24][25][26][27][28][29][30][31] resins with the aim of obtaining bituminous materials with improved operational properties.…”

Production of Distilled Bitumen from High-Viscosity Crude Oils of Ukrainian Fields

“…Also, polycondensation resins (phenol-formaldehyde and phenol-cresol-formaldehyde resins), [22][23][24][25][26] lowmolecular organic compounds (maleic anhydride) 27 or sulfur/organic copolymers 28 are used as bitumen binder modifiers.…”

Isolation of Antibacterial Nano-Hydroxyapatite Biomaterial from Waste Buffalo Bone and Its Characterization

“…To improve the adhesive properties of bitumen it is proposed to use the functional resins. [8][9][10][11][12][13][14][15] The peculiarity is that the resins contain different by nature functional groups (epoxy, peroxy, hydroxy, etc.) in their structure, which may react with bitumen component and form the cross-linked structures.…”