Abstract
The production of consumption goods made of elastomers is increasing day by day, producing large amounts of vulcanized/cured residues which constitute a serious socio-environmental problem. An option for companies that produce elastomeric residues is their incorporation in the formulations, by producing polymeric blends with ground waste elastomers. Therefore, this work aims to prepare polymeric blends composed of raw natural rubber (NR)/ground waste NR in different concentrations. The influence of vulcanization reversion as result of additional heating during compression molding on the mechanical properties of the blends was analyzed, and the relationship among vulcanization characteristics, dynamic-mechanical, morphology and mechanical properties of blends was also determined.
Highlights
In no other phase of human existence has such a large amount of waste been produced as in the present
It is really important to know the consequences of additional heating in the final compounds, since the physical properties are degraded and energy is wasted, making the production process unsustainable as result
The results pointed to the potential application of ground natural rubber (NR) to produce polymeric blends in the industry itself, due to the satisfactory obtained results
Summary
In no other phase of human existence has such a large amount of waste been produced as in the present. The irregular disposition of such waste may cause harmful environmental impacts [1] and increase the great global problem of the final disposal of solid residues. In this sense, the use of recycled materials can reduce such problems, since recycling protects the environment and saves the limited petroleum resources from which most of the raw material originates [2]. The world consumption of natural and synthetic elastomer in 2016 was of 27.2 million tons, generating a large amount of waste during the development of materials for everyday use, as well as post-consume rejects [3,4].
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