Polyurethane Binder Mechanical Properties under Different Crosslinking Conditions

Key Engineering Materials 2017
Renāte Plēsuma, Laimonis Mālers

Mechanical properties of polyurethane type polymer binder with selected reactivity, used for production of the composite material based on scrap tires, were investigated under different crosslinking conditions: temperature, relative air humidity, hardening time. Shore C hardness, tensile strength and elongation at break were selected as main parameters, reflecting crosslinking degree of the prepared polymer binder films. DMTA (dynamic mechanic thermal analyzer) investigation of the samples in tensile mode of loading were realized to clear up influence of deformation circumstances on storage and loss components of the elasticity modulus. Strong correlation between mentioned above mechanical properties of the polymer binder and selected crosslinking conditions of the polymer were obtained. It was affirmed previously, that crosslinking degree of the polymer binder in the same time has direct influence also on mechanical properties of the composite material.

Keywords
olyurethane binder, crosslinking conditions, mechanical properties, composite material
DOI
10.4028/www.scientific.net/KEM.721.3
Hyperlink
http://www.scientific.net/KEM.721.3

Plēsuma, R., Mālers, L. Polyurethane Binder Mechanical Properties under Different Crosslinking Conditions. In: Key Engineering Materials, Latvia, Riga, 3-4 November, 2016. Switzerland: Trans Tech Publications, Switzerland, 2017, pp.3-7. ISSN 1013-9826. e-ISSN 1662-9795. Available from: doi:10.4028/www.scientific.net/KEM.721.3

Publication language
English (en)