Recycling engine oil containers to prepare wood–plastic composites

Authors

  • Yong Lei,

    Corresponding author
    1. School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, Louisiana 70803
    2. College of Engineering, Temple University, Philadelphia, Pennsylvania 19122
    • School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, Los Angeles 70803
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  • Qinglin Wu

    Corresponding author
    1. School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, Louisiana 70803
    • School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, Los Angeles 70803
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Abstract

The collected oil containers were drained, crushed, and used directly to make wood–plastic composites through reactive extrusion, using maleic anhydride (MA) and maleated polyethylene (PE-g-MA) as coupling agents. Oil residue in the container would be controlled at lower than 6 wt % through simple draining, and it played a role as a plasticizer in the plastics and composites. As a coupling agent, MA performed better than PE-g-MA. The comprehensive mechanical properties of oil container plastics (OCP)/wood/MA (60/40/2 w/w) composite were at the same level as those of neat plastic/wood/PE-g-MA (60/40/3.2 w/w) system. Both PE-g-MA and MA effectively improved water resistance of the OCP/wood flour composites, especially MA. The residual oil in the composites was stable under heat to about 200°C or in the water, and it did not influence the thermal degradation behavior of the composites. The OCP was successfully used to make wood–plastic composite panels. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

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