Reokinetics of urethane epoxy oligomers hardening and formation of cold curing adhesive compositions based on them

• Published in: IOP Conference Series: Materials Science and Engineering
• Main Authors: Volkova, E R, Slobodinuk, A I, Savchuk, A I, Pogoreltsev, E V, Strelnikov, V N
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: IOP Publishing 2019
• Subjects: Arctic
• Online Access: http://dx.doi.org/10.1088/1757-899x/656/1/012055; https://iopscience.iop.org/article/10.1088/1757-899X/656/1/012055/pdf; https://iopscience.iop.org/article/10.1088/1757-899X/656/1/012055

Abstract In order to obtain polymeric binders for cold cure structural adhesives based on urethane epoxy oligomers, cycloaliphatic amines such as aminoethyl piperazine and isophorone diamine are used as hardeners. The reokinetic features of the curing process of polytetraurethanhydroxyl compositions at temperature of 25 ± 1 ° C were investigated, and influence regularities of the reactive oligomers composition on the dynamics of viscosity increase and the viability time of the compositions were established. The rheological parameters of the hardening process of the investigated compositions were determined. The assessment of adhesion strength for detachment of cold-curing adhesive joints formed on the basis of EUO is presented. The proposed compositions can be used for bonding ceramic linings operating under extreme conditions of the Arctic.