Tuning mechanical properties of 3D printed composites with PLA:TPU programmable filaments

Darnal, Aryabhat; Shahid, Zaryab; Deshpande, Himani; Kim, Jeeeun; Muliana, Anastasia

doi:10.1016/j.compstruct.2023.117075

Cited by 9 publications

(3 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To define the diffusion coefficient, we first adopted the formula 44 that relates interdiffusion coefficient ( D ) and the molecular weight ( M w )of the poly (methyl methacrylate) (PMMA), that is: …”

Section: Methodsmentioning

confidence: 99%

“…Different filaments have been connected via welding 42 , yet only with a relatively simple spatial control over material composition. Recent works reported the production of a multimaterial filament through 3D printing 43 , 44 , but due to the lack of systematic material design in the filament, the printed materials remained as a composite with separate material phases. As a result, not only did they show marginal improvement in mechanical properties, but they are also not capable of fabricating continuous gradient of material properties for FGMs.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

3D printing with a 3D printed digital material filament for programming functional gradients

Ahn,

Lee,

Cho

2024

Nat Commun

View full text Add to dashboard Cite

Additive manufacturing, or 3D printing attracts growing attention as a promising method for creating functionally graded materials. Fused deposition modeling (FDM) is widely available, but due to its simple process, creating spatial gradation of diverse properties using FDM is challenging. Here, we present a 3D printed digital material filament that is structured towards 3D printing of functional gradients, utilizing only a readily available FDM printer and filaments. The DM filament consists of multiple base materials combined with specific concentrations and distributions, which are FDM printed. When the DM filament is supplied to the same printer, its constituent materials are homogeneously blended during extrusion, resulting in the desired properties in the final structure. This enables spatial programming of material properties in extreme variations, including mechanical strength, electrical conductivity, and color, which are otherwise impossible to achieve with traditional FDMs. Our approach can be readily adopted to any standard FDM printer, enabling low-cost production of functional gradients.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

3D printing with a 3D printed digital material filament for programming functional gradients

Ahn,

Lee,

Cho

2024

Nat Commun

View full text Add to dashboard Cite

show abstract

“…Bio-sourced and biodegradable polymers such as poly(lactic acid) (PLA), poly(hydroxy-alkanoates) (PHAs), and thermoplastic starch (TPS) offer a route to achieving this goal [ 35 ]. These materials are a class of polymers with properties such as stiffness, ductility, and elasticity which can be tuned to suit different applications [ 36 , 37 , 38 , 39 , 40 , 41 , 42 ]. As such, they have the potential to replace a wide range of conventional polyolefins [ 43 ].…”

Section: Introductionmentioning

confidence: 99%

Carbon Recycling of High Value Bioplastics: A Route to a Zero-Waste Future

Keith,

Koller,

Lackner

2024

Polymers

View full text Add to dashboard Cite

Today, 98% of all plastics are fossil-based and non-biodegradable, and globally, only 9% are recycled. Microplastic and nanoplastic pollution is just beginning to be understood. As the global demand for sustainable alternatives to conventional plastics continues to rise, biobased and biodegradable plastics have emerged as a promising solution. This review article delves into the pivotal concept of carbon recycling as a pathway towards achieving a zero-waste future through the production and utilization of high-value bioplastics. The review comprehensively explores the current state of bioplastics (biobased and/or biodegradable materials), emphasizing the importance of carbon-neutral and circular approaches in their lifecycle. Today, bioplastics are chiefly used in low-value applications, such as packaging and single-use items. This article sheds light on value-added applications, like longer-lasting components and products, and demanding properties, for which bioplastics are increasingly being deployed. Based on the waste hierarchy paradigm—reduce, reuse, recycle—different use cases and end-of-life scenarios for materials will be described, including technological options for recycling, from mechanical to chemical methods. A special emphasis on common bioplastics—TPS, PLA, PHAs—as well as a discussion of composites, is provided. While it is acknowledged that the current plastics (waste) crisis stems largely from mismanagement, it needs to be stated that a radical solution must come from the core material side, including the intrinsic properties of the polymers and their formulations. The manner in which the cascaded use of bioplastics, labeling, legislation, recycling technologies, and consumer awareness can contribute to a zero-waste future for plastics is the core topics of this article.

show abstract

4D printing of Nd-Fe-B composites with both shape memory and permanent magnet excitation deformation

Zhai,

Li,

et al. 2024

Composites Part A: Applied Science and Manufacturing

View full text Add to dashboard Cite

Tuning mechanical properties of 3D printed composites with PLA:TPU programmable filaments

Cited by 9 publications

References 28 publications

3D printing with a 3D printed digital material filament for programming functional gradients

3D printing with a 3D printed digital material filament for programming functional gradients

Carbon Recycling of High Value Bioplastics: A Route to a Zero-Waste Future

4D printing of Nd-Fe-B composites with both shape memory and permanent magnet excitation deformation

Contact Info

Product

Resources

About