OBTAINING BITUMEN-POLYMER MASTIC WITH FUNGICIDAL PROPERTIES

Abstract

Low molecular weight polyethylene was used as a polymer additive (thermoplastic elastomer), which is a non-toxic by-product of the production of high-pressure polyethylene (low density), a hydrophobic substance from white to gray in color with high adhesion to various materials - paper, wood, metal, ceramics. TMPE belongs to the most reactive class of polyolefins, which are little affected by various factors, including atmospheric ones. As a result, bitumen-polymer mastic was obtained for the insulating anticorrosive coating of the pipeline, including bitumen, thermoplastic elastomer and plasticizer, characterized in that it contains bitumen BND-60/90 as bitumen, low molecular weight polyethylene as thermoplastic, and oxyethylated fatty acids of gossypol resin as a plasticizer, while gossypol resin is additionally introduced into the composition of the mastic and wollastonite at the following ratio of components, mass. %: bitumen BND 60/90 – 50-60, low molecular weight polyethylene – 10-20, gossypole resin – 15-20, oxyethylated fatty acids of gossypole resin – 10-15, wollastonite– 5-10.