Materials recycling and industrial ecology

Lally School of Management and Technology, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180, USA.
Nature Material (Impact Factor: 36.5). 05/2004; 3(4):199-201. DOI: 10.1038/nmat1101
Source: PubMed


New legislation has been passed in an attempt to minimize industrial waste and promote recycling. What does this mean for materials science?

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    • "In the case of electronics, phase-out of lead use in solders in process (see for example Liew et al., 2006) complicated disposal decisions. While in the case of cathode ray tubes, some jurisdictions have introduced special regulations to divert these products from municipal landfills with the intent of integrating the lead into new products (Linton and Yeomans, 2004). Policies that have been developed with the intent of producing more environmentally favorable modes of product end-of-life disposal have to-date resulted in more storage of product and less redeployment of parts and materials into new products than intended (Shih, 2001; Micklitz, 1992). "
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    ABSTRACT: Consideration is given to the convergence of supply chains and sustainability. In doing so, the focus on environmental management and operations is moved from local optimization of environmental factors to consideration of the entire supply chain during the production, consumption, customer service and post-disposal disposition of products. This is a critical and timely topic that captures increasing concerns over sustainability, whether driven by current legislation, public interest, or competitive opportunity. As such, sustainable development is a rich area for academic research that is still in its infancy and has the potential to affect future government policy, current production operations, and identify new business models. This paper provides a background to better understand current trends in this multidisciplinary field that intersect with operations management, and the research opportunities and challenges it presents. # 2007 Elsevier B.V. All rights reserved.
    Journal of Operations Management 11/2007; 25(6). DOI:10.1016/j.jom.2007.01.012 · 3.82 Impact Factor
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    ABSTRACT: Polytetrafluoroethylene (PTFE) composites filled with PTFE waste offer interesting combination of tribological properties and low cost. PTFE composites waste was mechanically cut and sieved into powders. PTFE composites filled with PTFE waste powders were prepared by compression molding. Friction and wear experiments were carried out in a reciprocating sliding tribotester at a reciprocating frequency of 1.0 Hz, a contact pressure of 5.5 MPa, and a relative humidity of (60 ± 5)%. PTFE materials slid against a 45 carbon steel track. Results showed that a PTFE composite (B) filled with 20 wt % PTFE waste exhibited a coefficient of steady-state friction slightly higher than that of unfilled PTFE (A), while wear resistance over two orders of magnitude higher than that of unfilled PTFE (A). Another PTFE composite filled with PTFE waste and alumina nanoparticles exhibited the highest wear resistance among the three PTFE materials. This behavior originates from the effective reinforcement of PTFE waste as a filler. It was experimentally confirmed that the low cost recycling of PTFE waste without by-products is feasible. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 1035–1041, 2007
    Journal of Applied Polymer Science 01/2007; 103(2):1035 - 1041. DOI:10.1002/app.25296 · 1.77 Impact Factor
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    ABSTRACT: Polyoxymethylene (POM) composites filled with low-density polyethylene (LDPE) and rice husk flour (RHF) were prepared by injection molding. The POM/5 wt % LDPE/7.5 wt % RHF composite exhibited the lowest wear rate, whereas the coefficient of friction remained low, and the POM/5 wt % LDPE/5 wt % RHF composite had the best mechanical properties. X-ray diffraction analysis was carried out, and the worn surfaces were examined with scanning electron microscopy. The results showed that the addition of the filler reduced the crystallinity degree of the POM composites. The main wear mechanism for unfilled POM was adhesion, whereas for the POM composites, wear seemed to occur mainly by fatigue and abrasion. It was experimentally confirmed that the POM composite filled with LDPE and RHF, which is well-performing, low-cost, and environmentally friendly, could be a potential material for tribological applications. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
    Journal of Applied Polymer Science 06/2008; 108(5):2778 - 2786. DOI:10.1002/app.27603 · 1.77 Impact Factor
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