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Matéria (Rio J.), 4(17), p. 1158-1165

DOI: 10.1590/s1517-70762012000400006

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Incorporação de resíduos de borracha em compósitos de matriz polimérica termorrígida

This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

The difficulty of degradation and storage of rejected tyres has led to increasing environmental problems, beyond the proliferation of insects which may transmit diseases becoming a harmful residue to the public health. This work investigates the physical and mechanical properties of polymeric composites based on tyre rubber wastes in order to achieve a sustainable material which is in accordance with international construction standards. A full factorial design of experiments of type 2231 was used to analyze the results. The experimental factors investigated were: particle size (30/50 US-Tyler and 100/200 US-Tyler), volume fraction (10, 25 and 50%) of rubber particles and the addition of maleic anhydride (1.5%) as a compatibilizing agent. The investigated responses in this experiment were: bulk density, apparent porosity and compressive strength. The rubber particles of 100/200 US-Tyler provided the increase of density and strength of the composites. The increase of rubber fraction reduced the density and strength, however, the level of 25% of rubber exhibited acceptable properties for engineering applications. The maleic anhydride affected the properties of the composites mainly when the rubber particle size is at 30/50 US-Tyler and rubber fractions at 10 and 25%.