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Recycling 2019, 4(1), 6; https://doi.org/10.3390/recycling4010006

Promoting Recycling of Mixed Waste Polymers in Wood-Polymer Composites Using Compatibilizers

Fiber Composite Laboratory, School of Energy Systems, Lappeenranta-Lahti University of Technology LUT, 53850 Lappeenranta, Finland
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Received: 30 November 2018 / Revised: 19 December 2018 / Accepted: 8 January 2019 / Published: 12 January 2019
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Abstract

Millions of tons of plastics are produced and consumed annually and should be recycled in a sustainable way. The effects of different compatibilizers on the properties of wood-mixed waste polymer composites are studied to promote recycling of plastics and to determine the potential of using waste plastics in composites. The effect of different addition levels and blending of compatibilizers is examined as well. The studied properties are microstructure, tensile and flexural properties, impact strength, and water absorption and thickness swelling in immersion. The results show that the addition of the selected compatibilizers improved the properties of wood-mixed waste polymer composites remarkably—all the studied mechanical properties and moisture resistance were improved by 50% or more. The effects depend strongly on the level of addition and the compatibilizer used. Findings show that compatibilization provides a feasible means to recycle waste plastics as feedstock for wood–plastic composites. View Full-Text
Keywords: wood-polymer composites; compatibilizers; waste polymer; waste plastics; recycling; WPC; mechanical properties; moisture resistance wood-polymer composites; compatibilizers; waste polymer; waste plastics; recycling; WPC; mechanical properties; moisture resistance
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Martikka, O.; Kärki, T. Promoting Recycling of Mixed Waste Polymers in Wood-Polymer Composites Using Compatibilizers. Recycling 2019, 4, 6.

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