Polylactic acid effectively reinforced with reduced graphitic oxide
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Alejandra De La Cruz Natera
Abstract
The present study was developed to reinforce a thermoplastic matrix with carbonaceous material to improve its thermal and mechanical properties. Composite materials formed from the homogenization of polylactic acid (PLA) and reduced graphitic oxide (RGO) were synthesized and characterized, reinforcement of the polymer’s thermomechanical properties and the adequate homogeneity ratio in the dispersion of the composite material were studied. Graphitic oxide (GO) was synthesized by the modified Hummers method, followed by thermal exfoliation. The chemical composition and the structure of RGO were studied by infrared (FT-IR) and Raman spectroscopies, respectively. PLA composites with different RGO contents (2 and 3% by weight) were prepared and compared in terms of distribution of RGO in the matrix and morphology, using scanning electron microscopy. The thermal stability of the composites was determined through thermogravimetric analysis. Torque of the different composites was measured, which increased at 21%; the tensile test showed an improvement in the mechanical parameters of the composites because the RGO favors the rigidity of the composite. In addition, the oxygenated functional groups present in the RGO allowed a more significant interaction with the PLA matrix, which results in an effective reinforcement of the mechanical properties of the composite material.
Funding source: Universidad del Atlántico
Award Identifier / Grant number: ING36-TGI2018
Funding source: Universidad Industrial de Santander
Award Identifier / Grant number: 2502
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Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: The authors acknowledge the different dependencies of the Universidad del Atlántico and the financial support from Universidad Industrial de Santander through the internal project 2502.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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© 2022 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Material properties
- Research progress of low dielectric constant polymer materials
- Natural rubber reinforced with super-hydrophobic multiwalled carbon nanotubes: obvious improved abrasive resistance and enhanced thermal conductivity
- Epoxy resin/graphene nanoplatelets composites applied to galvanized steel with outstanding microwave absorber performance
- Enhancement of thermal conductivity in polymer composites by maximizing surface-contact area of polymer-filler interface
- Dynamic characterization of the magnetomechanical properties of off axis anisotropic magnetorheological elastomer
- Investigation of optical and biocompatible properties of polyethylene glycol-aspirin loaded commercial pure titanium for cardiovascular device applications
- Polylactic acid effectively reinforced with reduced graphitic oxide
- Preparation and assembly
- Assembled hybrid films based on sepiolite, phytic acid, polyaspartic acid and Fe3+ for flame-retardant cotton fabric
- Fabrication, characterization, and performance of poly (aryl ether nitrile) flat sheet ultrafiltration membranes with polyvinyl pyrrolidone as additives
- Synthesis of composite membranes from polyacrylonitrile/carbon resorcinol/formaldehyde xerogels: gamma effect study, characterization and ultrafiltration of salted oily wastewater
- Chitosan nanoparticles encapsulated into PLA/gelatin fibers for bFGF delivery
- Engineering and Processing
- Stable photoluminescent electrospun CdSe/CdS quantum dots-doped polyacrylonitrile composite nanofibers
Artikel in diesem Heft
- Frontmatter
- Material properties
- Research progress of low dielectric constant polymer materials
- Natural rubber reinforced with super-hydrophobic multiwalled carbon nanotubes: obvious improved abrasive resistance and enhanced thermal conductivity
- Epoxy resin/graphene nanoplatelets composites applied to galvanized steel with outstanding microwave absorber performance
- Enhancement of thermal conductivity in polymer composites by maximizing surface-contact area of polymer-filler interface
- Dynamic characterization of the magnetomechanical properties of off axis anisotropic magnetorheological elastomer
- Investigation of optical and biocompatible properties of polyethylene glycol-aspirin loaded commercial pure titanium for cardiovascular device applications
- Polylactic acid effectively reinforced with reduced graphitic oxide
- Preparation and assembly
- Assembled hybrid films based on sepiolite, phytic acid, polyaspartic acid and Fe3+ for flame-retardant cotton fabric
- Fabrication, characterization, and performance of poly (aryl ether nitrile) flat sheet ultrafiltration membranes with polyvinyl pyrrolidone as additives
- Synthesis of composite membranes from polyacrylonitrile/carbon resorcinol/formaldehyde xerogels: gamma effect study, characterization and ultrafiltration of salted oily wastewater
- Chitosan nanoparticles encapsulated into PLA/gelatin fibers for bFGF delivery
- Engineering and Processing
- Stable photoluminescent electrospun CdSe/CdS quantum dots-doped polyacrylonitrile composite nanofibers
