Material extrusion 3D printing of biodegradable composites reinforced with continuous flax fibers

Kajbič, Jure; Fajdiga, Gorazd; Klemenc, Jernej

doi:10.1016/j.jmrt.2023.10.148

Cited by 5 publications

(1 citation statement)

References 46 publications

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“…Polymer composites with natural fibers based on a biodegradable matrix are also very popular. Such polymers include polylactide, polyglycolide, polyhydroxyalkanoates, and polycaprolactone [ 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 ]. The properties of composites with natural fibers are influenced by the type of ingredients used, the selection of proportions between the biopolymer matrix and the filler used, and the type of interactions between the hydrophilic phase and the hydrophobic phase.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Urtica dioica and Vitis vinifera Fibers on the Thermal Properties and Flammability of Polylactide Composites

Majka,

Piech,

Piechaczek

et al. 2024

Materials

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This study focuses on examining the influence of bast fibers on the flammability and thermal properties of the polylactide matrix (PLA). For this purpose, Urtica dioica and Vitis vinifera fibers were subjected to two types of modifications: mercerization in NaOH solution (M1 route) and encapsulation in an organic PLA solution (M2 route). In a further step, PLA composites containing 5, 10, and 15 wt% of unmodified and chemically treated fibers were obtained. The results of the tests show that only biocomposites containing mercerized fibers had a nearly 20% reduced flammability compared to that of PLA. Moreover, the biofiller obtained in this way belongs to the group of flame retardants that generate char residue during combustion, which was also confirmed by TGA tests. The M2 modification route allowed to achieve higher mass viscosity than the addition of unmodified and M1-modified fibers. The reason is that fibers additionally encapsulated in a polymer layer impede the mobility of the chain segments. The inferior homogenization of the M2-modified fibers in the PLA matrix translated into a longer combustion time and only a 15% reduction in flammability.

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Section: Introductionmentioning

confidence: 99%

The Influence of Urtica dioica and Vitis vinifera Fibers on the Thermal Properties and Flammability of Polylactide Composites

Majka,

Piech,

Piechaczek

et al. 2024

Materials

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Biodegradable Substrates for Rigid and Flexible Circuit Boards: A Review

Dušek,

Koc,

Veselý

et al. 2024

Advanced Sustainable Systems

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Biodegradable materials represent a promising path toward green and sustainable electronics on a global scale in the future. Plastics play a pivotal role in contemporary electronics, including printed circuit boards (PCB), where petroleum‐based polymers such as epoxies form the base insulating substrate. In this review paper, several promising bio‐based alternatives to conventional PCB materials that are recently developed and investigated are stated and discussed regarding their properties, practical utilization, and further perspective. The given list includes polylactic acid (PLA), cellulose acetate (CA), polyvinyl alcohol (PVA), and others, with the development of PLA‐based PCB substrates being the furthest along regarding the use in industry practice. Yet, all of the provided solutions are still only suitable for prototypes or low‐cost electronics without high‐reliability requirements. The reason for this is inferior mechanical and thermal properties of biopolymers compared to traditional petroleum‐based polymers. Further development is therefore essential, including new types of reinforcements and other additives. However, as Life Cycle Assessment analyses discussed in the paper show, biopolymers are capable of significantly reducing the environmental impact and are likely to play a major role in shaping a sustainable path for the electronics industry, which will be a key challenge in the current decade.

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Continuous additive manufacturing of hemp yarn-reinforced biocomposites with improved impregnation method

Ginoux,

Wu,

Laqraa

et al. 2024

Composites Science and Technology

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Material extrusion 3D printing of biodegradable composites reinforced with continuous flax fibers

Cited by 5 publications

References 46 publications

The Influence of Urtica dioica and Vitis vinifera Fibers on the Thermal Properties and Flammability of Polylactide Composites

The Influence of Urtica dioica and Vitis vinifera Fibers on the Thermal Properties and Flammability of Polylactide Composites

Biodegradable Substrates for Rigid and Flexible Circuit Boards: A Review

Continuous additive manufacturing of hemp yarn-reinforced biocomposites with improved impregnation method

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