Development of electrically conductive hybrid composites with a poly(lactic acid) matrix, with enhanced toughness for injection molding, and material extrusion-based additive manufacturing

Petrény, Roland; Tóth, Csenge; Horváth, Aurél; Mészáros, László

doi:10.1016/j.heliyon.2022.e10287

Cited by 11 publications

(4 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For instance, hybrid composites with properly chosen combination of nano‐ and microsized fillers can produce significantly higher electrical conductivity than each material used separately 22 . We also saw this synergistic effect in our hybrid composite (PLA reinforced with carbon fibers and CNTs) 23 . In some cases, nanoparticles can be used to improve the adhesion between the matrix and the micro‐sized reinforcing material 24,25 .…”

Section: Introductionmentioning

confidence: 52%

“…In the case of a thermoplastic polymer composite melt, MFI can indicate how the presence of reinforcing materials and processing have affected viscosity 23 . The changes in viscosity can indicate the degradation of the PLA and the dispersion state of the nanomaterials.…”

Section: Resultsmentioning

confidence: 99%

“…In the case of a thermoplastic polymer composite melt, MFI can indicate how the presence of reinforcing materials and processing have affected viscosity. 23 The changes in viscosity can indicate the degradation of the PLA and the dispersion state of the nanomaterials. The degradation is illustrated by the fact that the MFI of the PLA in the data sheet published by the manufacturer is 14 g/10 min, while we measured 28.1 g/10 min after extrusion (Figure 1).…”

Section: Melt Flow Indexmentioning

confidence: 99%

“…22 We also saw this synergistic effect in our hybrid composite (PLA reinforced with carbon fibers and CNTs). 23 In some cases, nanoparticles can be used to improve the adhesion between the matrix and the micro-sized reinforcing material. 24,25 In general, nanomaterials positively affect the thermal (stability, thermal conductivity) and mechanical properties of common composites.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effects of carbon‐based nanoparticles on the properties of poly(lactic acid) hybrid composites containing basalt fibers and carbon‐based nanoparticles processed by injection molding

Juhász,

Pinke,

Gonda

et al. 2024

Polymer Engineering & Sci

Self Cite

View full text Add to dashboard Cite

In this study, we developed composites with a poly(lactic acid) matrix and reinforced with basalt fiber, carbon‐based nanoparticles (carbon nanotube [CNT] and expanded graphene [GNP]), and both basalt fiber and nanoparticles (hybrid composites). The composites were produced by extrusion, and then tensile specimens were injection molded from the composites. The hybrid composites exhibited enhanced mechanical properties. The reinforcing materials increased crystallinity; this was more pronounced for hybrid composites. We experienced significant increase in the glass transition temperature, which proves the better interaction between the reinforcing and the matrix phases. Dynamic mechanical thermal analysis showed that the nanoparticles increased the storage modulus both alone and in combination with basalt fibers. Furthermore, the basalt fiber‐reinforced composites and hybrids exhibited significant modulus above the glass transition temperature. Based on scanning electron microscopy images of the fracture surfaces, we concluded that adding basalt fibers during compounding resulted in better dispersion of the nanoparticles.Highlights Poly(lactic acid) (PLA) reinforced with basalt fiber has good strength properties. Graphene hybrid exhibits notable tensile modulus improvement in hybrids. Graphene and carbon nanotubes are crystalline nucleating agents for PLA. Enhanced nanoparticle distribution was discovered for hybrid composites. The glass transition temperature of PLA increases with reinforcement.

show abstract

Section: Introductionmentioning

confidence: 52%

Section: Resultsmentioning

confidence: 99%

Section: Melt Flow Indexmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of carbon‐based nanoparticles on the properties of poly(lactic acid) hybrid composites containing basalt fibers and carbon‐based nanoparticles processed by injection molding

Juhász,

Pinke,

Gonda

et al. 2024

Polymer Engineering & Sci

Self Cite

View full text Add to dashboard Cite

show abstract

Optimizing the injection molding process for thermally and electrically conductive, carbon fiber and carbon nanotube‐reinforced poly(lactic acid) hybrid composites with enhanced mechanical properties

Virág,

Tóth,

Mészáros

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

We produced poly(lactic acid) (PLA) matrix carbon fiber and carbon nanotube‐reinforced hybrid composites with enhanced thermal conductivity (0.48–0.59 W/mK) and electrical conductivity (0.35–0.97 S/cm). The conductive fillers greatly decreased the toughness, which was compensated with oligomeric lactic acid (OLA). Since fillers and plasticizers greatly alter the flow and thermal properties of the material as well, it was necessary to optimize several parameters of the injection molding process that were predetermined based on theoretical considerations. Based on oscillatory shear rheometry, we explored the rheological behavior of the materials in a wide temperature and shear rate range for the optimum injection molding temperatures, injection volume rates. We showed that by adding 15 wt% OLA as a plasticizer to the composites, the optimal processing temperature decreased by 45–135°C. This remarkable change illustrates the need for rheological studies of PLA compounds. The injection molded hybrid composites containing 5% oligomeric lactic had a tensile strength, modulus of elasticity, and work of fracture higher by 41%, 10%, and 150%, respectively, compared to samples without OLA.

show abstract

The efficacy of nano‐cellulose‐based composites in heavy metal removal from wastewater: a comprehensive review

Castellanos,

Aryanfar,

Mohtaram

et al. 2024

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

This comprehensive study delves into the innovative application of nano‐cellulose‐based composites for addressing the multifaceted challenges of wastewater treatment. This review introduces the innovative use of nano‐cellulose composites, particularly highlighting the novel synthesis routes that enhance their pollutant adsorption capabilities beyond conventional materials. These materials stand out for their regenerative properties and integration with functionalized matrix materials, marking significant advancements in sustainable wastewater treatment technologies. As the environmental and public health risks associated with untreated wastewater escalate, the development of efficient and sustainable treatment technologies has become crucial. Nano‐cellulose composites, derived from natural and renewable sources, offer significant advantages, including high surface area, superior mechanical strength, and notable biodegradability. This review explores various synthesis methods—mechanical, chemical, and enzymatic—that enhance the adaptability of nano‐cellulose composites to meet specific treatment needs. Main findings demonstrate these composites' effectiveness in removing a wide array of pollutants, including heavy metals, organic compounds, dyes, and microbial contaminants, with detailed removal capacities provided for each pollutant category in comparative tables. The potential for regeneration and reuse highlights their practical sustainability and economic viability. Future research should focus on improving production scalability and cost‐effectiveness, assessing environmental impacts and ensuring regulatory compliance to advance the application of nano‐cellulose composites in wastewater treatment. This study paves the way for these materials to become central to innovative, efficient, and eco‐friendly wastewater management strategies. © 2024 Society of Chemical Industry (SCI).

show abstract

Development of electrically conductive hybrid composites with a poly(lactic acid) matrix, with enhanced toughness for injection molding, and material extrusion-based additive manufacturing

Cited by 11 publications

References 30 publications

Effects of carbon‐based nanoparticles on the properties of poly(lactic acid) hybrid composites containing basalt fibers and carbon‐based nanoparticles processed by injection molding

Effects of carbon‐based nanoparticles on the properties of poly(lactic acid) hybrid composites containing basalt fibers and carbon‐based nanoparticles processed by injection molding

Optimizing the injection molding process for thermally and electrically conductive, carbon fiber and carbon nanotube‐reinforced poly(lactic acid) hybrid composites with enhanced mechanical properties

The efficacy of nano‐cellulose‐based composites in heavy metal removal from wastewater: a comprehensive review

Contact Info

Product

Resources

About