Biodegradable Poly(Lactic Acid)/Multiwalled Carbon Nanotube Nanocomposite Fabrication Using Casting And Hot Press Techniques

Park, S.G.; Abdal‐hay, Abdalla; Lim, Jae Kyoo

doi:10.1515/amm-2015-0172

Cited by 10 publications

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This shows that the dispersion of MWCNTs in the matrix plays an important role in controlling nanocomposite properties. Furthermore, the proper dispersion of MWCNTs likely directly reflects the bonding interactions between polymer molecules and MWCNTs fillers [24].…”

Section: Fe-sem Observationmentioning

confidence: 99%

Biodegradable Poly (lactic acid)/Poly (ethylene glycol) Reinforced Multi-Walled Carbon Nanotube Nanocomposite Fabrication, Characterization, Properties, and Applications

et al. 2020

View full text Add to dashboard Cite

This paper presents the electromagnetic interference properties of multi-walled carbon nanotubes (MWCNTs) as a novel nano-reinforcement filler in poly (lactic acid) (PLA)/poly (ethylene glycol) (PEG) polymer matrix that was prepared via melt blending mode. Plasticization of PLA was first carried out by PEG, which overcomes its brittleness problem, in order to enhance its flexibility. A waveguide adapter technique was used to measure the dielectric properties ε r , and S-parameters reflection (S11) and transmission (S21) coefficients. The dielectric properties, microwave attenuation performances, and electromagnetic interference shielding effectiveness (EMISE) for all the material under test have been calculated over the full X-Band (8–12 GHz) due to its importance for military and commercial applications. The prepared samples were studied while using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Fourier transforms infrared spectroscopy (FTIR), mechanical properties measurements, as well as thermogravimetric analysis (TGA). The results showed that the dielectric properties increased with increased multi-walled carbon nanotubes (MWCNTs) filler, as well as the shielding effectiveness of the MWCNT/PLA/PEG nanocomposites increased with the increasing of MWCNTs. The highest SE total value was found to be 42.07 dB at 12 GHz for 4 wt.% filler content. It is also observed that the attenuation values of the nanocomposites increased with an increase in MWCNTs loading, as well as the power loss values for all of the samples increased with the increase in MWCNTs loading, except the amount of the transmitted wave through the nanocomposites.

show abstract

Section: Fe-sem Observationmentioning

confidence: 99%

Biodegradable Poly (lactic acid)/Poly (ethylene glycol) Reinforced Multi-Walled Carbon Nanotube Nanocomposite Fabrication, Characterization, Properties, and Applications

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Due to research to develop ecofriendly advanced polymer composites, Park et al [ 219 ] have developed biodegradable poly (lactic acid) multiwalled carbon nanotube nanocomposites (PLA/MWCNTs) using a solvent casting process and subsequent hot pressing. The inclusion of nanomaterials, such as carbon nanotubes, can considerably enhance the composite's electrical properties in addition to its mechanical properties.…”

Section: D/4d Printing Of the Biodegradable Soft Sensors And Actuatorsmentioning

confidence: 99%

Sustainable Robots 4D Printing

Soleimanzadeh,

Rolfe,

Bodaghi

et al. 2023

Advanced Sustainable Systems

View full text Add to dashboard Cite

Nature frequently serves as an inspiration for modern robotics innovations that emphasize secure human–machine interaction. However, the advantages of increased automation and digital technology integration conflict with the global environmental objectives. Accordingly, biodegradable soft robots have been proposed for a range of intelligent applications. Biodegradability provides soft robotics with an extraordinary functional advantage for operations involving intelligent shape transformation in response to external stimuli such as heat, pH, and light. Soft robot fabrication using conventional manufacturing techniques is inflexible, time‐consuming, and labor‐intensive. Recent advances in 3D and 4D printing of soft materials and multi‐materials have become the key to enabling the direct manufacture of soft robotics with complex designs and functions. This review comprises a detailed survey of 3D and 4D printing advances in biodegradable soft sensors and actuators (BSSA), which serve as the most prominent parts of each robotic system. In addition, a concise overview of biodegradable materials for the fabrication of 3D‐printed flexible devices with medical along with industrial applications is provided. A complete summary of current additive manufacturing techniques for BSSA is discussed in depth. Moreover, the concept of biodegradable 4D‐printed soft actuators and sensors and biohybrid soft robots is reviewed.

show abstract

Impact of salt and fillers on the rheological properties of polymer composites

Teymoory,

Driscoll,

Zhao

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

Polymer composites with salts or conductive fillers are promising for various solid‐state energy storage applications, where processability is often determined by their rheological properties. This study investigates the effect of lithium salts and conductive fillers on the rheological behavior of polylactic acid (PLA)‐based composites. We specifically examine how these additives influence complex viscosity and the interactions between the salt, fillers, and polymer. Our findings reveal that adding salt to the polymer reduces its viscosity, whereas adding conductive fillers imparts a shear‐thinning property, which is advantageous for thermal processing methods like thermal drawing, injection molding, or 3D printing. The combination of salt and conductive fillers results in multifunctional electrode‐electrolyte composites with enhanced shear‐thinning behavior and improved storage modulus. Characterizations through x‐ray diffraction, electrical measurements, and transmission electron microscopy link the electrical properties and morphology with rheological behavior. The formation of a robust filler network in these composites ensures stable viscoelastic behavior across a range of temperatures and frequencies, indicating their suitability for efficient manufacturing of polymer‐based solid‐state electrode‐electrolyte composites via thermal processing.Highlights Shear‐thinning behavior enhanced by conductive fillers. Viscosity increased with CB and CNT fillers, forming robust networks. Salt reduced viscosity but filler networks dominated flow behavior. Filler combinations led to stable viscoelastic properties across temperatures. Polymer electrolyte–electrode composites improved processability and storage modulus.

show abstract

Biodegradable Poly(Lactic Acid)/Multiwalled Carbon Nanotube Nanocomposite Fabrication Using Casting And Hot Press Techniques

Cited by 10 publications

References 8 publications

Biodegradable Poly (lactic acid)/Poly (ethylene glycol) Reinforced Multi-Walled Carbon Nanotube Nanocomposite Fabrication, Characterization, Properties, and Applications

Biodegradable Poly (lactic acid)/Poly (ethylene glycol) Reinforced Multi-Walled Carbon Nanotube Nanocomposite Fabrication, Characterization, Properties, and Applications

Sustainable Robots 4D Printing

Impact of salt and fillers on the rheological properties of polymer composites

Contact Info

Product

Resources

About