Characterization of recycled polycarbonate from electronic waste and its use in hydraulic concrete: Improvement of compressive performance

Colina-Martinez, Ana L. De la; Martinez-Barrera, Gonzalo; Barrera-Diaz, Carlos E.; Avila-Cordoba, Liliana I.; Urena-Nunez, Fernando

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저자정보: Colina-Martinez, Ana L. De la (Posgrado en Ciencia de Materiales, Facultad de Quimica, Universidad Autonoma del Estado de Mexico) Martinez-Barrera, Gonzalo (Laboratorio de Investigacion y Desarrollo de Materiales Avanzados [LIDMA], Facultad de Quimica. Universidad Autonoma del Estado de Mexico) Barrera-Diaz, Carlos E. (Centro Conjunto de Investigacion en Quimica Sustentable UAEM-UNAM, Universidad Autonoma del Estado de Mexico Campus El Rosedal) Avila-Cordoba, Liliana I. (Facultad de Ingenieria, Universidad Autonoma del Estado de Mexico) Urena-Nunez, Fernando (Instituto Nacional de Investigaciones Nucleares)

저널정보: 테크노프레스 Advances in concrete construction Advances in concrete construction 제5권 제6호

발행연도: 2017.1

수록면: 563 - 573 (11page)

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Transparency, excellent toughness, thermal stability and a very good dimensional stability make Polycarbonate (PC) one of the most widely used engineering thermoplastics. Polycarbonate market include electronics, automotive, construction, optical media and packaging. One alternative for reducing the environmental pollution caused by polycarbonate from electronic waste (e-waste), is to use it in cement concretes. In this work, physical and chemical characterization of recycled polycarbonate from electronic waste was made, through the analysis by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), energy dispersive spectroscopy (EDS) and scanning electron microscope (SEM). Then cement concrete was made with Portland cement, sand, gravel, water, and this recycled polycarbonate. Specimens without polycarbonate were produced for comparison purposes. The effect of the particle sizes and concentrations of recycled polycarbonate within the concrete, on the compressive strength and density was studied. Results show that compressive strength values and equilibrium density of concrete depend on the polycarbonate particle sizes and its concentrations; particularly the highest compressive strength values were 20% higher than that for concrete without polycarbonate particles. Moreover, morphological, structural and crystallinity characteristics of recycled polycarbonate, are suitable for to be mixed into concrete.

#polycarbonate #recycling #electronic waste #cement concrete #compressive strength

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Colina-Martinez, Ana L. De la

소속기관 Posgrado en Ciencia de Materiales, Facultad de Quimica, Universidad Autonoma del Estado de Mexico