Printing and mechanical characterization of cellulose nanofibril materials

Mariani, Lisa; Johnson, William R.; Considine, John; Turner, Kevin T.

doi:10.1007/s10570-019-02247-w

Cited by 21 publications

(12 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…TEMPO-oxidized CNFs with aspect ratios >100 and approximately 10 nm in diameter were produced at the USDA Forest Products Laboratory. The detailed preparation technique of CNFs using TEMPO (2,2,6,6-tetramethylpiperiding-1-oxly-radical) pretreatment has been described previously. , To break up remaining agglomerates found by polarized light microscopy, the CNFs were passed an additional three times through a homogenizer (Microfluidics M-110EH-30) equipped with 200 and 87 μm orifices in series.…”

Section: Methodsmentioning

confidence: 99%

Toughening Poly(methyl methacrylate) via Reinforcement with Cellulose Nanofibrils

Vankayalapati

Kaplan

Lallo

et al. 2021

ACS Appl. Polym. Mater.

Self Cite

View full text Add to dashboard Cite

The incorporation of fibers into polymers is a wellknown route for realizing composite materials with improved strength, stiffness, and toughness. Cellulose nanofibrils (CNFs) are a promising reinforcement because of their high aspect ratio, high specific stiffness and specific strength, and transparency and the fact that they are derived from renewable and sustainable sources. Here, we demonstrate the application of CNFs for the reinforcement of continuous polymer fibers (filaments) to achieve a concurrent enhancement of strength, stiffness, and fracture toughness. Poly(methyl methacrylate) (PMMA)-CNF composite fibers with 0 to 3 wt % CNFs were made by solvent blending and melt-spinning/drawing techniques, resulting in fibers with diameters ranging from 200 to 300 μm. The processing route was developed to overcome challenges presented by the combination of high processing temperatures of PMMA and the low thermal stability of CNFs as well as the formation of a percolated CNF network and low volume fractions. Fourier transform infrared (FTIR) spectroscopy was used to understand the alignment of PMMA and CNFs in the fibers. The strength and Young's modulus of the fibers were characterized by tensile testing, and the fracture toughness was measured via notched fiber tests. The addition of lowweight fractions (<3%) of CNFs increased Young's modulus by 35% and yield strength by 19% compared to neat PMMA fibers. Along with this increase in stiffness and strength, the incorporation of 1 wt % CNF led to a doubling of the fracture toughness. FTIR results and imaging of the fracture surfaces provided insight into toughening mechanisms.

show abstract

Section: Methodsmentioning

confidence: 99%

Toughening Poly(methyl methacrylate) via Reinforcement with Cellulose Nanofibrils

Vankayalapati

Kaplan

Lallo

et al. 2021

ACS Appl. Polym. Mater.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The gradual in situ gelation has created less time to mobilize and re-orientate. 199,210 Besides SLA/DLP, nanocellulose has been integrated as both rheological modifier 211,212 and reinforcer [213][214][215][216] Figure 14 shows the predicted printability of the composition (CNF:xylan-tyramine) and the cases when pure components were printed individually. We understand that cross-linking is fundamental to prevent the collapse of printed object, keeping it intact upon handling.…”

Section: Nanocellulose As a Viable 3d-printable Materialsmentioning

confidence: 99%

Recent advances in 3D printing of nanocellulose: structure, preparation, and application prospects

2021

Nanoscale Adv.

View full text Add to dashboard Cite

show abstract

“…CNF can be produced using high-speed homogenization, producing web-like nanofibrils consisting of both crystalline and amorphous regions [ 77 , 78 ]. The high shearing force yields CNF having shear-thinning behavior with a high aspect ratio [ 79 , 80 ]. The electrospinning of CNF, PLA, and polybutylene succinate (PBS) can generate a composite with cell attachment and proliferation process that could be suitable for tissue regeneration applications with better mechanical properties and biodegradability due to the reinforcement by CNF [ 81 ].…”

Section: Cellulose-based Polymers In 3d Printing Technologymentioning

confidence: 99%

“…Furthermore, CNF suspension can also be printed at a lower concentration of 0.91 wt. % on a heated bed by controlling the extrusion pressure and printing speed [ 79 ]. CNF with the shear-thinning property extruded at the pressure of 172 kPa had an optimum flow rate of CNF printing.…”

Section: Cellulose-based Polymers In 3d Printing Technologymentioning

confidence: 99%

Extending Cellulose-Based Polymers Application in Additive Manufacturing Technology: A Review of Recent Approaches

et al. 2020

View full text Add to dashboard Cite

The materials for additive manufacturing (AM) technology have grown substantially over the last few years to fulfill industrial needs. Despite that, the use of bio-based composites for improved mechanical properties and biodegradation is still not fully explored. This limits the universal expansion of AM-fabricated products due to the incompatibility of the products made from petroleum-derived resources. The development of naturally-derived polymers for AM materials is promising with the increasing number of studies in recent years owing to their biodegradation and biocompatibility. Cellulose is the most abundant biopolymer that possesses many favorable properties to be incorporated into AM materials, which have been continuously focused on in recent years. This critical review discusses the development of AM technologies and materials, cellulose-based polymers, cellulose-based three-dimensional (3D) printing filaments, liquid deposition modeling of cellulose, and four-dimensional (4D) printing of cellulose-based materials. Cellulose-based AM material applications and the limitations with future developments are also reviewed.

show abstract

Printing and mechanical characterization of cellulose nanofibril materials

Cited by 21 publications

References 33 publications

Toughening Poly(methyl methacrylate) via Reinforcement with Cellulose Nanofibrils

Toughening Poly(methyl methacrylate) via Reinforcement with Cellulose Nanofibrils

Recent advances in 3D printing of nanocellulose: structure, preparation, and application prospects

Extending Cellulose-Based Polymers Application in Additive Manufacturing Technology: A Review of Recent Approaches

Contact Info

Product

Resources

About