Biocomposites

Ramakrishna, Seeram; Huang, Zheng‐Ming

doi:10.1016/b978-0-12-803581-8.00965-6

Cited by 16 publications

(12 citation statements)

References 191 publications

(167 reference statements)

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“…This inability to directly visualize dispersed cellulose nanomaterials in polymer matrices has been reported previously . That said, qualitative assessment of crack propagation and mechanisms, called fractography, is possible when inspecting the fracture surfaces of these specimens . At the risk of overanalyzing these preliminary findings, we simply note that these surfaces contain primarily smooth surfaces with long and relatively parallel cracks, with smaller regions having a rough surface.…”

Section: Resultsmentioning

confidence: 89%

Enhancing the Matrix–Fiber Interface with a Surfactant Leads to Improved Performance Properties of 3D Printed Composite Materials Containing Cellulose Nanofibrils

Battisto

Sarsfield

Lele

et al. 2022

ACS Appl. Mater. Interfaces

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Cellulose nanofibrils (CNFs) exhibit characteristics that make them a desirable addition to new composite materials. CNFs are usable in a wide variety of applications such as coatings, personal and healthcare products, packaging, and advanced structural materials. They can also help overcome some performance issues with objects 3D printed by stereolithography (SLA) including dimensional instability and poor mechanical properties. However, CNFs are hydrophilic, making their dispersion in hydrophobic resins common to SLA difficult. Therefore, improvement of performance properties will not be fully realized. In this work, we treated TEMPO-oxidized CNFs (TOCNFs) with the hydrochloride salt of lauroyl arginate ethyl ester (LAE·HCl), a cationic surfactant, to investigate how this coating would affect the performance properties of multicomponent uncured SLA resins and subsequently printed objects. We hypothesized this coating would enhance the dispersion of the cellulose nanomaterials when compared to their uncoated counterparts, which would lead to quantifiable differences among the sample groups. We found that the viscosity of a commercial 3D printing resin (0.34 Pa·s at 30 Hz) increased by nearly an order of magnitude upon addition of even 1 wt % uncoated TOCNFs (2.96 Pa·s at 30 Hz). Moreover, the tensile strength (19.9(5) MPa) and modulus (0.65(5) GPa) of objects printed from the commercial resin decreased when adding 4 wt % uncoated TOCNF (12.5(2) MPa and 0.58(8) GPa, respectively). In contrast, resins having 4 wt % TOCNFs coated with LAE were less viscous (1.25 Pa·s at 30 Hz), and objects printed from them had enhanced tensile strength (24.7(7) MPa) and modulus (0.78(8) GPa) when compared to both the unadulterated resin and that having uncoated TOCNFs. Our findings show the general utility of using a surfactant with cellulose nanomaterials to homogenize multicomponent resins for 3D printing composite materials with enhanced performance properties.

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Section: Resultsmentioning

confidence: 89%

Enhancing the Matrix–Fiber Interface with a Surfactant Leads to Improved Performance Properties of 3D Printed Composite Materials Containing Cellulose Nanofibrils

Battisto

Sarsfield

Lele

et al. 2022

ACS Appl. Mater. Interfaces

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“…In the biomedical literature, the term biocomposite materials, or biocomposites in short, defines "all implantable biomedical composite materials, made of biomaterials, synthetic or natural" [1], [2]. In this sense, biocomposite materials, found in different types are found in the construction of implantable medical devices [3], [4].…”

Section: Introductionmentioning

confidence: 99%

“…This is especially the case for polymeric biocomposite materials (Figure 1). The laminated hybrid epoxy biocomposites reinforced with glass and carbon fibers are non-resorbable composites [1] being composed of biocompatible materials: CF carbon fibers, GF glass fibers and epoxy resins (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

Stacking sequence effect on flexural behavior of hybrid GF/CF biocomposite used in orthopedics

Bejinaru-Mihoc

Mitu

Roşca

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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In the field of orthopedic medicine, hybrid biocomposites with epoxy matrix reinforced with carbon fibers and glass fibers are being used. Through the hybridization phenomenon, appropriate properties can be obtained for the use of these biocomposites in the bone plate and external fixation. The paper presents the manufacture of hybrid laminate with epoxy matrix reinforced with carbon fiber and glass fiber, three-point bending test method and the laminate layering sequence influence upon the bending behavior of composite biomaterial.

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“…A biocomposite is considered a material that is composed of at least one natural resource. The natural fiber added value endows the biocomposites with a wide range of physical, mechanical and biological properties [5]. Manufacture of biocomposites can be accomplished by different processing techniques, including compression molding, injection molding, resin transfer molding, sheet molding, hand lay-up, filament winding, extrusion and pultrusion.…”

Section: Introductionmentioning

confidence: 99%

Biofunctionalization of Natural Fiber-Reinforced Biocomposites for Biomedical Applications

et al. 2020

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In the last ten years, environmental consciousness has increased worldwide, leading to the development of eco-friendly materials to replace synthetic ones. Natural fibers are extracted from renewable resources at low cost. Their combination with synthetic polymers as reinforcement materials has been an important step forward in that direction. The sustainability and excellent physical and biological (e.g., biocompatibility, antimicrobial activity) properties of these biocomposites have extended their application to the biomedical field. This paper offers a detailed overview of the extraction and separation processes applied to natural fibers and their posterior chemical and physical modifications for biocomposite fabrication. Because of the requirements for biomedical device production, specialized biomolecules are currently being incorporated onto these biocomposites. From antibiotics to peptides and plant extracts, to name a few, this review explores their impact on the final biocomposite product, in light of their individual or combined effect, and analyzes the most recurrent strategies for biomolecule immobilization.

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Biocomposites

Cited by 16 publications

References 191 publications

Enhancing the Matrix–Fiber Interface with a Surfactant Leads to Improved Performance Properties of 3D Printed Composite Materials Containing Cellulose Nanofibrils

Enhancing the Matrix–Fiber Interface with a Surfactant Leads to Improved Performance Properties of 3D Printed Composite Materials Containing Cellulose Nanofibrils

Stacking sequence effect on flexural behavior of hybrid GF/CF biocomposite used in orthopedics

Biofunctionalization of Natural Fiber-Reinforced Biocomposites for Biomedical Applications

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