Preparation of Highly Efficient Electromagnetic Interference Shielding Polylactic Acid/Graphene Nanocomposites for Fused Deposition Modeling Three-Dimensional Printing

Shi, Shaohong; Peng, Zilin; Jing, Jingjing; Lu, Yang; Chen, Yinghong; Kotsilkova, Rumiana; Ivanov, Evgeni

doi:10.1021/acs.iecr.0c02400

Cited by 46 publications

(21 citation statements)

References 44 publications

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“…In particular, the fused deposition modeling (FDM) method has been popular in applications because it is inexpensive for thermoplastic materials and low maintenance [ 1 , 2 , 3 , 4 ]. Moreover, it has been used in prototypes and the production of custom parts in many industries including the medical, food, textile, automotive, aerospace, and construction industries [ 5 , 6 , 7 , 8 , 9 , 10 ]. In FDM 3D printing, melted thermoplastic is extruded in the X, Y, and Z directions, and laminated layer by layer on a platform.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Interlayer Adhesion and Heat Resistance of Biodegradable Ternary Blend Composite 3D Printing

Prasong

Ishigami

Thumsorn³

et al. 2021

Polymers

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Poly(lactic acid) (PLA) filaments have been the most used in fused deposition modeling (FDM) 3D printing. The filaments, based on PLA, are continuing to be developed to overcome brittleness, low heat resistance, and obtain superior mechanical performance in 3D printing. From our previous study, the binary blend composites from PLA and poly(butylene adipate-co-terephthalate) (PBAT) with nano talc (PLA/PBAT/nano talc) at 70/30/10 showed an improvement in toughness and printability in FDM 3D printing. Nevertheless, interlayer adhesion, anisotropic characteristics, and heat resistance have been promoted for further application in FDM 3D printing. In this study, binary and ternary blend composites from PLA/PBAT and poly(butylene succinate) (PBS) with nano talc were prepared at a ratio of PLA 70 wt. % and blending with PBAT or PBS at 30 wt. % and nano talc at 10 wt. %. The materials were compounded via a twin-screw extruder and applied to the filament using a capillary rheometer. PLA/PBAT/PBS/nano talc blend composites were printed using FDM 3D printing. Thermal analysis, viscosity, interlayer adhesion, mechanical properties, and dimensional accuracy of binary and ternary blend composite 3D prints were investigated. The incorporation of of PBS-enhanced crystallinity of the blend composite 3D prints resulted in an improvement to mechanical properties, heat resistance, and anisotropic characteristics. Flexibility of the blend composites was obtained by presentation of PBAT. It should be noted that the core–shell morphology of the ternary blend influenced the reduction of volume shrinkage, which obtained good surface roughness and dimensional accuracy in the ternary blend composite 3D printing.

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Section: Introductionmentioning

confidence: 99%

Improvement of Interlayer Adhesion and Heat Resistance of Biodegradable Ternary Blend Composite 3D Printing

Prasong

Ishigami

Thumsorn³

et al. 2021

Polymers

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“…Moreover, if the conductive filler is not metal but carbon-based, the composite is even more environmentally friendly. Accordingly, composites of bioplastics (mostly PLA) with various carbon fillers such as biochar/graphite, carbon nanotubes, carbon black, , and graphene nanoplatelets have gained considerable momentum very lately.…”

Section: Resultsmentioning

confidence: 99%

Bioplastics and Carbon-Based Sustainable Materials, Components, and Devices: Toward Green Electronics

Bozó

Ervasti

Halonen

et al. 2021

ACS Appl. Mater. Interfaces

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The continuously growing number of short-life electronics equipment inherently results in a massive amount of problematic waste, which poses risks of environmental pollution, endangers human health, and causes socioeconomic problems. Hence, to mitigate these negative impacts, it is our common interest to substitute conventional materials (polymers and metals) used in electronics devices with their environmentally benign renewable counterparts, wherever possible, while considering the aspects of functionality, manufacturability, and cost. To support such an effort, in this study, we explore the use of biodegradable bioplastics, such as polylactic acid (PLA), its blends with polyhydroxybutyrate (PHB) and composites with pyrolyzed lignin (PL), and multiwalled carbon nanotubes (MWCNTs), in conjunction with processes typical in the fabrication of electronics components, including plasma treatment, dip coating, inkjet and screen printing, as well as hot mixing, extrusion, and molding. We show that after a short argon plasma treatment of the surface of hot-blown PLA-PHB blend films, percolating networks of single-walled carbon nanotubes (SWCNTs) having sheet resistance well below 1 kΩ/□ can be deposited by dip coating to make electrode plates of capacitive touch sensors. We also demonstrate that the bioplastic films, as flexible dielectric substrates, are suitable for depositing conductive micropatterns of SWCNTs and Ag (1 kΩ/□ and 1 Ω/□, respectively) by means of inkjet and screen printing, with potential in printed circuit board applications. In addition, we exemplify compounded and molded composites of PLA with PL and MWCNTs as excellent candidates for electromagnetic interference shielding materials in the K-band radio frequencies (18.0−26.5 GHz) with shielding effectiveness of up to 40 and 46 dB, respectively.

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“…The results indicate that segregated architecture has an effect on microwave shielding and absorbing, implying the properties can be improved by controlling the microstructure of nanomaterials, the macrostructure of the shield and the dispersion of nanomaterials in the substrate. Shi et al [58] . performed local enrichment strategy and prepared graphene‐based polymer (Figure 3a), which realized the integrated design and molding of EMI shielding materials with anisotropic structure.…”

Section: Graphene‐based 2d Materialsmentioning

confidence: 99%

Design and Synthesis Strategies: 2D Materials for Electromagnetic Shielding/Absorbing

Zhang

Shuai

et al. 2021

Chemistry An Asian Journal

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Two‐dimensional (2D) materials possess special physical and chemical properties. They have been proved to have potential application advantage in the microwave absorption (MA) and electromagnetic interference (EMI) shielding. Particularly, they exhibit positive shielding and absorbing response to EMI. Here, the research progress of preparation, electromagnetic performance and microwave shielding/absorbing mechanisms of 2D composite materials are introduced. Effective preparation routes including introducing heteroatoms, constructing unique structures and 2D composite materials are described. Furthermore, the application prospects and challenges for the development of novel EMI materials are expatiated.

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Preparation of Highly Efficient Electromagnetic Interference Shielding Polylactic Acid/Graphene Nanocomposites for Fused Deposition Modeling Three-Dimensional Printing

Cited by 46 publications

References 44 publications

Improvement of Interlayer Adhesion and Heat Resistance of Biodegradable Ternary Blend Composite 3D Printing

Improvement of Interlayer Adhesion and Heat Resistance of Biodegradable Ternary Blend Composite 3D Printing

Bioplastics and Carbon-Based Sustainable Materials, Components, and Devices: Toward Green Electronics

Design and Synthesis Strategies: 2D Materials for Electromagnetic Shielding/Absorbing

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