Biobased Resin for Sustainable Stereolithography: 3D Printed Vegetable Oil Acrylate Reinforced with Ultra-Low Content of Nanocellulose for Fossil Resin Substitution

Barkāne, Anda; Jurinovs, Maksims; Briede, Sabine; Platnieks, Oskars; Onufrijevs, Pāvels; Zelča, Zane; Gaidukovs, Sergejs

doi:10.1089/3dp.2021.0294

Cited by 13 publications

(13 citation statements)

References 92 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the literature, different studies agree that to maintain printability, the viscosity of the resin should not exceed the ∼10 Pa s mark at low shear rate values (shear rate of <10 s −1 ). 15,29,30 The viscosity of biobased electrode resin with 0.1 wt % SWCNT reached 1.6 Pa s, while at 0.3 wt %, the viscosity increase reached 6 Pa s at a shear rate of 5 s −1 .…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Three Dimensionally Printed Biobased Electrodes: Ionic Liquid and Single-Walled Carbon Nanotube Hybrids in a Vegetable Oil Matrix for Soft Robotics

Jurinovs

Barkāne

Platnieks

et al. 2023

ACS Appl. Polym. Mater.

Self Cite

View full text Add to dashboard Cite

The field of conductive polymer composites has been growing rapidly in recent years due to the increased demand for cutting-edge applications, such as sensors, soft robots, and other high-tech devices. Despite developing some biobased components, biobased solutions that yield working prototypes are still lacking. Herein, a method for making highly biobased, electroconductive, and 3D printable composites (electrodes) is presented. A formulation composed of acrylate-functionalized rapeseed oil (70 wt %) with the addition of a photoinitiator, reactive monomer, 1-ethyl-3-methylimidazolium acetate (ionic liquid (IL)), and single-walled carbon nanotubes (SWCNT) is reported. The proposed approach eliminates the use of solvents. Combining IL with SWCNTs resulted in highly conductive (up to 38 S m–1) biobased electrodes. The in-depth conductivity analysis was done through impedance spectroscopy, 4-point resistivity, and electroconducting atomic force microscopy. The prepared resins enable the creation of complex structures with exceptional precision and accuracy, thoroughly evaluated with optical and scanning electron microscopy. Biobased electrodes created by 3D printing have mechanical qualities like stretchability and flexibility, which make them a suitable replacement for traditional electrodes in soft robotics and flexible sensors. Furthermore, a fully 3D-printed soft-robotic actuator with performance comparable to that of commonly used petroleum-based alternatives was developed.

show abstract

Section: ■ Results and Discussionmentioning

confidence: 99%

Three Dimensionally Printed Biobased Electrodes: Ionic Liquid and Single-Walled Carbon Nanotube Hybrids in a Vegetable Oil Matrix for Soft Robotics

Jurinovs

Barkāne

Platnieks

et al. 2023

ACS Appl. Polym. Mater.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Second, the use of reinforcement via the preparation of biocomposites could be considered. This can be achieved with the use of nanofillers like nanocellulose 41 …”

Section: Resultsmentioning

confidence: 99%

Effect of novel furan‐based ester reactive diluent on structure and properties of UV‐crosslinked acrylated rapeseed oil

Briede,

Platnieks,

Darzina

et al. 2023

Journal of Polymer Science

Self Cite

View full text Add to dashboard Cite

Unsaturated furan‐based ester (UES) was prepared by green electrosynthesis using a single‐cell setup and inexpensive graphite electrodes. The UES was validated as a reactive diluent for a bio‐based acrylated rapeseed oil (ARO). UV‐light photopolymerization of the bio‐based resin was initiated using a diphenyl (2,4,6‐trimethylbenzoyl)phosphine oxide (TPO) radical photoinitiator. The addition of 20 wt% UES to ARO dropped the resin viscosity by 1.6‐fold. Incorporating 5 wt% UES into the ARO resin increased crosslinking density νe from 1.07 to 1.65 mol/m3. Fourier‐transform infrared spectroscopy (FT‐IR) spectra revealed that ARO has been grafted with UES. The UES functional moieties promote the formation of soft mobile dangling chain end segments in the developed macromolecular network. UV‐cured thermoset polymer reveals distinct morphologies in SEM micrographs, indicating notable structural changes with the addition of UES. A total of 5 wt% UES increased tensile strength from 0.49 to 0.55 MPa and storage modulus from 7.9 to 12.0 MPa at room temperature (22 ± 1 °C). The biodegradability in composting conditions was investigated, and up to 28% of the initial mass was lost after 60 days. UES was shown as to be efficient reactive diluent that can successfully replace fossil‐based acrylate monomers in vegetable oil‐based thermoset polymer synthesis.

show abstract

“…Their application possibilities are broad regardless of using neat or modified lignocellulose filler. CNC and CNF mainly provide beneficial light scattering in the matrix and reinforcement and enhanced mechanical properties. − However, CNC and CNF additions also increase the resin viscosity, often limiting UV-curable resins . Although HC cannot be considered as a filler, , it can provide tunable barrier properties, improved polymer matrix compatibility, and densification. , Due to its UV-light absorption properties, LN is not a typical choice for UV-curing resins.…”

Section: Introductionmentioning

confidence: 99%

“…33−36 However, CNC and CNF additions also increase the resin viscosity, often limiting UV-curable resins. 37 Although HC cannot be considered as a filler, 14,35 it can provide tunable barrier properties, improved polymer matrix compatibility, and densification. 38,39 Due to its UV-light absorption properties, 40 LN is not a typical choice for UV-curing resins.…”

Section: ■ Introductionmentioning

confidence: 99%

New Reinforcing Approach for Biobased UV-Curing Resins: Hybrid Lignocellulose Fillers with Improved Synergy and Wood Structure Mimics

Barkāne

Kampe

Gaidukovs

2023

ACS Sustainable Chem. Eng.

Self Cite

View full text Add to dashboard Cite

Lignocellulosic fillers have been widely investigated for various polymer resin applications since they have great potential for using wood biomass and recycled plastics. However, besides cellulose nanocrystals (CNC) and nanofibrils (CNF), not much of the other lignocellulose has been used for UV-curing resins. Even more so, none has been used in hybrid lignocellulose combination compositions. In the present work, the effects of hybrid lignocellulose fillers such as lignin (LN)/CNC/CNF/hemicellulose (HC) with ratio-varying compositions on UV-curing biobased resins have been investigated for wood-mimic material coating applications. The hybrid filler effects on the macromolecular chain network, surface morphology, thermomechanical properties, and thermostability were carefully studied. A combination of scanning electron microscopy, DMA Cole–Cole plot, contact angle, etc., allowed getting a sense of hybrid filler distribution and interaction within the polymer matrix. It was identified that an increase in the HC content of up to 38% contributes to more even particle distribution and achieves a maximum double bond conversion rate of about 80%. HC also contributes to porous surface structure, while CNC smooths surface morphology, and, in turn, CNF increases defects. Thermomechanical testing revealed the unique benefit of hybrid reinforcement, showing higher results than single-filler compositions despite the general decrease after incorporation of 5 wt % LN. The storage modulus showed a fourfold increase for 5 wt % LN composition. The observed enormous property enhancement has been attributed to the benefits of hybrid fillers, which mitigate characteristic radical scavenging properties of LN and strongly reduce general filler aggregation, allowing more even filler dispersion while also improving filler–matrix interface synergy. Seventeen different compositions clearly, in comparison to single fillers, show the benefit of hybrid lignocellulosic reinforcement and testify to the ability to precisely tune up material performance and achieve wood structure-mimicking coating materials.

show abstract

Biobased Resin for Sustainable Stereolithography: 3D Printed Vegetable Oil Acrylate Reinforced with Ultra-Low Content of Nanocellulose for Fossil Resin Substitution

Cited by 13 publications

References 92 publications

Three Dimensionally Printed Biobased Electrodes: Ionic Liquid and Single-Walled Carbon Nanotube Hybrids in a Vegetable Oil Matrix for Soft Robotics

Three Dimensionally Printed Biobased Electrodes: Ionic Liquid and Single-Walled Carbon Nanotube Hybrids in a Vegetable Oil Matrix for Soft Robotics

Effect of novel furan‐based ester reactive diluent on structure and properties of UV‐crosslinked acrylated rapeseed oil

New Reinforcing Approach for Biobased UV-Curing Resins: Hybrid Lignocellulose Fillers with Improved Synergy and Wood Structure Mimics

Contact Info

Product

Resources

About