Modification of urethane hot-melt adhesives used for the production of rubber composites

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Abstract

Currently, polyurethane hot-melt adhesives based on urethane prepolymers containing terminal isocyanate groups are predominantly used as binders for rubber crumb. In this study, urethane prepolymers were synthesized using polypropylene oxide with a molecular weight of 2000 and polyisocyanates of both aromatic and aliphatic nature. The urethane prepolymers were modified using a metal-complex system, leading to the structuring of the polyurethane binders. As a result, a twofold increase in the strength and elasticity of the polyurethanes was achieved, along with improved heat resistance.

About the authors

A. R. Kostikov

Kazan National Research Technological University

Kazan, 420015 Russia

R. S. Davletbaev

Kazan State Power Engineering University

Kazan, 420066 Russia

A. R. Ibragimova

Kazan National Research Technological University

Kazan, 420015 Russia

O. O. Sazonov

Kazan National Research Technological University

Kazan, 420015 Russia

M. N. Kayumov

LLC 'RIBERG BAUCHEMIE'

Bishkek, 720011 Kyrgyzstan

I. M. Davletbaeva

Kazan National Research Technological University

Email: davletbaeva09@mail.ru
Kazan, 420015 Russia

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