Thermoplastic elastomer with waste leather: directing of solid waste

• Grant number: 13/01065-9
• Support type: Regular Research Grants
• Duration: March 01, 2014 - February 29, 2016
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal researcher: Aldo Eloizo Job
• Grantee: Aldo Eloizo Job
• Home Institution: Faculdade de Ciências e Tecnologia (FCT). Universidade Estadual Paulista (UNESP). Campus de Presidente Prudente. Presidente Prudente , SP, Brazil

Abstract

This project consists of the development of polymeric composites, obtained by mixing leather waste with thermoplastic elastomers. The thermoplastic elastomers are prepared by the compatibility of LDPE with natural rubber (NR) and SBR rubber together with curing agents, aimed to the different rubber vulcanization, to thereby obtain the best properties of the material. The first step will be mixing in solid medium, NR and SBR rubbers and vulcanization activators. This process will be performed in a drum mixer equipment open. In the second step will be a mixture of NR/SBR to the low density polyethylene in an equipment HAAKE torque rheometer using the roller type rotors. Will be made mixtures in different proportions, in order to, analyze the mass physical and chemical behavior of the material by varying proportional NR, SBR and LDPE in the blend, producing a thermoplastic elastomer, that will act as the new polymer matrix composite. Subsequently the mixture is added LDPE/NR/SBR, still in HAAKE torque rheometer, the residue leather in different proportions by mass, in order to determine the optimal percentage of load-matrix interaction. After the process of torque rheometry the thermopressing material is molded into a rectangular shape so that it can perform the studies of their physical and chemical properties. In this project, the scientific contribution will not only make the mixture of constituents, and yes, to technological innovation, introducing scientifically industrial waste leather in a thermoplastic material, resulting in an unprecedented way the composite LDPE / BN / SBR CR-making their characterization and technological application to give a solid residue that is left exposed to the environment will become highly dangerous. The composites are characterized using the techniques of thermal analysis (DSC, TG, DMA and TG/FT-IR), infrared spectroscopy (FT-IR ATR mode) and micro Raman microscopy, and scanning electron microscopy (SEM), mechanical testing, penetration of water and water vapor, abrasion resistance, bending test, and leaching study. According to the results, the formulation should be patented and technological innovation will be the production of masters for industrial and commercial applications of new materials with environmental and economic sustainability. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

RUIZ, MARCOS ROBERTO; SOBREIRO CABREIRA, PEDRO LUIZ; BUDEMBERG, EDUARDO ROQUE; PRADO DOS REIS, ELTON APARECIDO; BELLUCCI, FELIPE SILVA; JOB, ALDO ELOIZO. Chemical evaluation of composites natural rubber/carbon black/leather tannery projected to antistatic flooring. Journal of Applied Polymer Science, v. 133, n. 27 JUL 15 2016. Web of Science Citations: 2.