Anomalous Effects of Changes in the Viscosity of Epoxy Resins and the Plasticity of Bitumen when Introducing Carbon Nano-Tubes

Khozin, V. G.; Nizamov, Rashit; Старовойтова, И А; Зыкова, Е С; Ayupov, Damir; Elrefai, Ali Elsaed Mohamed Mohamed

doi:10.31659/0585-430x-2019-767-1-2-11-15

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The available data suggests that some authors [7] obtained a chemical interaction of the carboxyl group of bitumen asphaltenes and polymer. In [8] we discovered a cross-link of the metaoxysilane group of bitumen and the acetyl fragments of ethylene copolymer with vinyl acetate; the investigation of nanomodification of bitumen is presented [9]. The use of significant industrial waste concentrations as bitumen modifiers have proved to be cost-effective [10,11].…”

Section: Introductionmentioning

confidence: 99%

Study of Combination of Polymers with Bitumen

Sayfullina¹,

Muruzina²

2019

helix

View full text Add to dashboard Cite

We have considered a possibility of modifying the roofing bitumen by the developed mixed thermoplastic elastomer (TPE) in view of its increased resistance to atmospheric aging. We evaluated the preliminary selection of TPE composition with accordance to the time of dissolution in the bitumen melt and main physical and mechanical properties. In order to determine the best polymer and bitumen compatibility, we calculated the solubility parameter of polymer in hydrocarbon solvents in terms of the shortest dissolution time as well as determined the TPE solubility parameter. The proximity of these indicators demonstrates the successful compatibility of TPE in saturated bitumen maltenes. The assessment of physicotechnical properties of TPE and its components in bitumen showed that highdensity polyethylene (HDPE) and synthetic triple ethylene-propylene rubber (EPR) have a major influence. HDPE increases the heat resistance of polymer modified bitumen composition (PMB) and accelerates the dissolution of TPE in bitumen at processing temperatures. EPR is responsible for the low-temperature properties of PMB composition and increases resistance to atmospheric aging, however, it takes a long time to dissolve in bitumen. We as well used the widely used styrene-butadiene-styrene thermoplastic elastomer (SBS) to compare the modifying effect. Modification of bitumen by TPE is more visible than by SBS or individual components, especially at high concentrations (≥ 10%), and allows to obtain high durability of PMB.

show abstract

Section: Introductionmentioning

confidence: 99%