首页|Recycling of natural fiber composites: Challenges and opportunities

Recycling of natural fiber composites: Challenges and opportunities

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  • NSTL
  • Elsevier
Natural fibers have been widely used for reinforcing polymers attributed to their sustainable nature, excellent stiffness to weight ratio, biodegradability, and low cost compared with synthetic fibers like carbon or glass fibers. Thermoplastic composites offer an advantage of recyclability after their service life, but challenges and opportunities remain in the recycling of natural fiber reinforced polymer composites (NFRPCs). This article summarized the effects of reprocessing/recycling on the material properties of NFRPCs. The material properties considered include mechanical performance, thermal properties, hygroscopic behavior, viscoelasticity, degradation, and durability. NFRPCs can generally be recycled approximately 4-6 times until their thermomechanical properties change. After recycling 7 times, the tensile strength of NFRPCs can decrease by 17%, and the tensile modulus can decrease by 28%. The mitigation approaches to overcome degradation of material properties of NFRPCs such as adding functional additives and virgin plastics are also discussed. The main challenges in these approaches such as degradation and incompatibility are discussed, and an effort is made to provide a rationale for reprocessing/recyclability assessment. Future applications of NFRPCs such as additive manufacturing and automotive part use are discussed.

ReprocessingRecyclingNatural fiberPolymerNatural fiber reinforced polymer compositeMaterial propertyREINFORCED POLYPROPYLENE COMPOSITESWOOD-PLASTIC COMPOSITESMECHANICAL-PROPERTIESACID COMPOSITESFLOURIMPACTDEGRADATIONPOLYMERWASTEBEHAVIOR

Li, Kai、Lamm, Meghan E.、Kishore, Vidya、Bhagia, Samarthya、Tajvidi, Mehdi、Tekinalp, Halil、Oyedeji, Oluwafemi、Wasti, Sanjita、Webb, Erin、Ragauskas, Arthur J.、Zhu, Hongli、Peter, William H.、Ozcan, Soydan、Zhao, Xianhui、Copenhaver, Katie、Wang, Lu、Korey, Matthew、Gardner, Douglas J.

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Oak Ridge Natl Lab

Univ Maine

Univ Tennessee

Northeastern Univ

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2022

10.1016/j.resconrec.2021.105962

Resources, Conservation and Recycling

Resources, Conservation and Recycling

EI
ISSN：0921-3449
年,卷(期)：2022.177
  • 28
  • 143