Comparison between polyethylene glycol and tributyl citrate to modify the properties of wood fiber/polylactic acid biocomposites

Yang, Zhaozhe; Bi, Hongjie; Bi, Yingpu; Rodrigue, Denis; Xu, Min; Feng, Xinhao

doi:10.1002/pc.24872

Cited by 23 publications

(25 citation statements)

References 49 publications

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“…10 Biodegradable biobased materials, known as biocomposites, are of interest because they degrade completely through composting or in soil without emitting toxic components. 11 However, natural lignocellulosic fibers have low degradation temperatures (e.g., 225 °C), which limits their use with some synthetic polymers (e.g., polyethylene terephthalate). 1 The biopolymer polylactic acid (PLA) is a popular candidate to replace petroleum-based synthetic polymers because it is easily produced and offers environmental benefits.…”

Section: Introductionmentioning

confidence: 99%

Poplar as Biofiber Reinforcement in Composites for Large-Scale 3D Printing

Zhao

Tekinalp

Meng

et al. 2019

ACS Appl. Bio Mater.

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The economic viability of the biofuel industry could be improved by adding a high-value revenue stream for biomass supply chains: bioderived composites for the rapidly expanding large-scale additive manufacturing industry (i.e., 3D printing). Using fibrillated fibers derived from biomass (e.g., Populus) to reinforce polymers for 3D printing applications would be less expensive compared to using conventional carbon fibers. Poplar fibers of different mesh sizes (<180, 180−425, 425−850, and 850−2360 μm) were used to prepare poplar−polylactic acid (PLA) composites. The poplar/PLA composites were successfully printed using a large-scale 3D printer to create a podium support. The tensile strength of the composites increased from 34 to 54 MPa as the poplar fiber size decreased. The fracture surfaces of composites derived from smaller poplar fibers (<180 μm) were more compact with fewer voids compared with the composites made with larger poplar fibers. Because of the porous and hollow microstructures, smaller poplar fibers contained more pores on their outer surfaces, which were available for the access and penetration of PLA. Poplar has potential for use as a thermoplastic reinforcement for large-scale 3D printing.

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Section: Introductionmentioning

confidence: 99%

Poplar as Biofiber Reinforcement in Composites for Large-Scale 3D Printing

Zhao

Tekinalp

Meng

et al. 2019

ACS Appl. Bio Mater.

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“…To improve the compatibility of poplar fiber with PLA matrix during extrusion, and to overcome the brittleness of the corresponding biocomposites, the modification of poplar fiber by silane coupling agent (3-aminopropyltriethoxysilane, KH550) and the toughening agent tributyl citrate (TBC) was taken to produce a biocomposite with superior mechanical properties and toughness, respectively (Yang et al 2019. However, few studies have been made to explore the possibility of the poplar fiber/PLA biocomposite as a raw material applied in 3D printing, especially for the modified biocomposite (Bhagia et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Printability and properties of 3D-printed poplar fiber/polylactic acid biocomposite

Yang

Feng

et al. 2021

BioRes

Self Cite

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To efficiently and economically utilize a wood-plastic biocomposite, an eco-friendly biocomposite was prepared using modified poplar fiber and polylactic acid (PLA) via 3D printing technology for the first time. First, the effects of poplar fiber (0, 1, 3, 5, 7, and 9%) on the mechanical and rheological properties of the printed biocomposites were investigated. Subsequently, the printing parameters, including printing temperature, speed, and layer thickness, were optimized to obtain the biocomposite with superior properties. Finally, four printing orientations were applied to the biocomposite based on the optimized printing parameters to study the effect of filament orientation on the properties of the biocomposite. Favorable printability and mechanical properties of the biocomposite were obtained at 5% poplar fiber. The optimal printing temperature of 220 °C, speed of 40 mm/s, and layer thickness of 0.2 mm were obtained to produce the desired mechanical properties of the biocomposite with the printing orientation in a longitudinal stripe. However, the printing parameters should be chosen according to the applications, where different physical and mechanical properties are needed to achieve efficient and economical utilization of the biocomposites.

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“…Many studies have shown that the adhesion between natural fibers and hydrophobic polymer matrix is poor, 19 and fiber agglomeration and pullout are prone to occur so that the role of plant fibers as reinforcing fillers in polymers is greatly limited 20,21 . PLA is a weakly polar degradable polymer with polar oxygen atoms 22 and can theoretically form hydrogen bonds with hydroxyl groups on the surface of natural fibers 23 .…”

Section: Introductionmentioning

confidence: 99%

Study on properties of polylactic acid/lemongrass fiber biocomposites prepared by fused deposition modeling

Jing

Líu

et al. 2020

Polymer Composites

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In this paper, poly(lactic acid) grafted with maleic anhydride (PLA‐g‐MAH) was prepared by melt grafting, and added into poly(lactic acid)/lemongrass fiber (PLA/LF) biocomposites after analyzing the chemical properties of LF. The effect of PLA‐g‐MAH on the properties of PLA/LF biocomposites was studied. Differential scanning calorimeter (DSC), thermogravimetric analyzer (TGA), scanning electron microscope (SEM) were used to characterize the crystallinity, isothermal crystallization behavior, thermal stability and microstructure of the biocomposites. In addition, the mechanical properties of biocomposites prepared by fused deposition modeling (FDM) 3D printing technology were also characterized. The results show that, the contents of cellulose, hemicellulose and lignin are 22.5%, 36.4%, and 22.8%, respectively in the composition of LF. With the addition of LF, the flexural modulus, crystallinity and crystallization rate of biocomposites are improved. After PLA‐g‐MAH was added, the crystallization rate of PLA is further slightly increased, but the crystallinity is not changed much. The mechanical properties of the PLA/LF biocomposites are improved to the greatest extent when 5 wt% PLA‐g‐MAH was added. PLA‐g‐MAH can significantly reduce the internal cavity and fiber peeling phenomenon, and there is no obvious gap between phases so that interface compatibility of PLA and LF is improved obviously.

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Comparison between polyethylene glycol and tributyl citrate to modify the properties of wood fiber/polylactic acid biocomposites

Cited by 23 publications

References 49 publications

Poplar as Biofiber Reinforcement in Composites for Large-Scale 3D Printing

Poplar as Biofiber Reinforcement in Composites for Large-Scale 3D Printing

Printability and properties of 3D-printed poplar fiber/polylactic acid biocomposite

Study on properties of polylactic acid/lemongrass fiber biocomposites prepared by fused deposition modeling

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