期刊名称:Advances in Science and Technology Research Journal
印刷版ISSN:2080-4075
电子版ISSN:2299-8624
出版年度:2021
卷号:15
期号:4
页码:267-272
DOI:10.12913/22998624/142288
语种:English
出版社:Society of Polish Mechanical Engineers and Technicians
摘要:The work develops the method of obtaining new composite materials based on novolac phenol-formaldehyde resin with improved adhesion properties and heat resistance. The composites were obtained by chemical modifi cation of phenol-formaldehyde resin by epoxy resin and polyvinylpyrrolidone during the hardening of the composition. The mechanism of resins modifi cation and hardening has been determined. It is shown that due to the modifi cation, the heat resistance and adhesive strength of the obtained enamels and coatings have signifi cantly increased. In particular, with the polyvinylpyrrolidone content from 0.5 to 1 wt% and epoxy resin from 25 to 50 wt%, the adhesive strength of the compositions increases 5–7 times.