Rheological behaviour assessment of conventional mixtures between natural rubber and leather wastes

Abstract

The mixtures of natural rubber with post-industrial 
leather waste have a high potential given their technical 
characteristics, as evidenced in works developed by different 
authors; however, there is no information on the processes 
of transformation on an industrial scale. The rheology studies 
about rubber mixtures allow to define the best method for 
its processing, to validate the above experimental tests are 
required in molds that allow to determine the fluidity of various 
mixtures. Therefore, it is necessary to emphasize the research 
on the formulation of rubber-leather blends, their treatment, 
design and transformation to obtain products applicable on an 
industrial scale, as an alternative solution to the environmental 
problems generated by leather waste.
The present work allows to know experimentally the fluidity of 
3 elastomeric mixtures (injection, extrusion and compression 
grade) in a mold designed for this purpose, its validation allows 
to determine the processing behaviour of these materials, after 
this relate this behaviour with the fluidity of leather rubber 
mixtures and the correlation with their rheological behaviour. 
The parameters obtained by vulcanization reometries have a 
direct relationship with the mixtures behaviour in the “X” type 
flow mold.