Modified Phenol-Formaldehyde Resins and their Application in Bitumen-Polymeric Mixtures

Abstract

Phenol-formaldehyde resins (PhFR) with reactive methacrylate fragments or labile peroxy bonds in the side branches used as a polymeric component of bitumen-polymeric mixtures have been investigated. Taking into account that PhFR with peroxy fragments based on epoxy resin does not described in literature, its synthesis procedure has been developed. The kinetic regularities of the reaction between peroxy derivative of epoxy resin (PDER) and phenol group of PhFR were studied taking the reaction of PDER with phenol as an example. The structure of PhFR with peroxy groups (PhFRP) has been confirmed by IR-studies. Bitumenpolymeric mixtures with PhFRP or PhFR with unsaturated fragments (PhFRU) in the amount of 1, 3, 5 or 7 mass parts per 100 g of petroleum bitumen were examined at 443, 463 or 483 K for 0.5, 1.0 or 2.0 h. The composition of bitumn-polymeric mixtures has been determined using the group analysis.

Development of Mathematical Model and Identification of Optimal Conditions to Obtain Phenol-Cresol-Formaldehyde Resin

“…At the Department of Chemical Technology of Oil and Gas Processing, Lviv Polytechnic National University, the possibility of using modified phenolformaldehyde resin (PFR) as additives to petroleum bitumen was trailed [13][14][15][16]. These studies show that the said resin has proved to improve a range of performance characteristics of bitumens, most notably, the adhesion.…”

Obtaining of Coumarone-Indene Resins based on Light Fraction of Coal Tar. 5. Emulsions on the Basis of Bitumen Modified by Coumarone-Indene Resins with Epoxy Groups

“…Recently, at the Department of Chemical Technology of Oil and Gas Processing at Lviv Polytechnic National University, new bitumen modifiers have been developed based on petroleum [11][12][13], phenolformaldehyde [14][15][16], epoxy [16] and coumarone-indene resins without [17][18] and with functional groups [19][20][21][22]. The most promising results were obtained for coumarone-indene resins with functional groups, since they are produced from a light fraction of coal tar, which is available and low cost by-product of coal coking.…”

Obtaining of Coumarone-Indene Resins Based on Light Fraction of Coal Tar. 4. Bitumen-Polymer Blends with Participation of Coumarone-Indene Resins with Epoxy Groups

“…Over the past few years, the researchers of the Department of Chemical Technology of Oil and Gas Processing at Lviv Polytechnic National University (Ukraine) have been working on the creation of new oligomeric products containing functional groups [4][5][6][7][8]. Such oligomer products are studied as additives to bitumen.…”