Tribological and nanomechanical properties of a lignin-based biopolymer

Broitman, Esteban; Nedelcu, Dumitru; Mazurchevici, Simona‐Nicoleta

doi:10.1515/epoly-2020-0055

Cited by 4 publications

(1 citation statement)

References 39 publications

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“…The material of the samples used for texturing is Arboblend V2 Nature, a biopolymer patented by a team of researchers from the Fraunhofer Institute for Chemical Technology (ICT) in Pfinztal (Germany) in collaboration with the company Tecnaro GmbH, showing great potential for use in industrial applications from all fields that use renewable resources and whose content is based on biopolymers, such as polyhydroxyalkanoates (PHAs), polycaprolactone (PCL), polyester (e.g., bio-PET), starch, polylactic acid (PLA), bio-polyolefins (bio-PEs), bio-polyamides (bio-PAs), lignin, natural resins, natural waxes, natural oils, natural fatty acids, cellulose, organic additives and natural reinforcing fibers [ 22 ]. The basic properties of the Arboblend V2 Nature material are presented in Table 1 [ 23 ], and a number of authors have studied this material both from the point of view of mechanical and thermal properties and have also analyzed its structure [ 24 , 25 , 26 , 27 , 28 , 29 ].…”

Section: Methodsmentioning

confidence: 99%

Characterization of Arboblend V2 Nature Textured Surfaces Obtained by Injection Molding

et al. 2023

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Surface texturing is an engineering technology used in order to improve the surface characteristic of plastic parts obtained by injection molding. Applying this process not only changes the part surface properties, but also its topography. The novel functionalities of plastic products become useful when other materials make contact with the textured surface. Of course, these characteristics may vary depending on the laser positioning, dimensions, and geometry of the texture. The present paper presents the surface characteristics obtained after the laser texturing of the Arboblend V2 Nature biodegradable polymer. Three distinct geometries were studied: hexagonal, square, and triangular, and different behaviors of them were highlighted during surface free energy (SFE) and contact angle (WCA) measurements: a hydrophobic character for square and hexagonal geometry with distilled water as the measure liquid, and a hydrophilic character with diiodomethane as the measure liquid; for triangle geometry, the contact angle measurements were impossible to extract because the drop turns into a flat puddle. Additionally, the friction coefficient varied depending on the geometry texture, with the lowest value being recorded by the sample with hexagonal geometry. The micro-indentation tests highlighted increased surface micro-hardness compared to the basic material. The possibility of use in the practice of textured surfaces is viable; thus, based on the obtained results, there is even the possibility to replace non-biodegradable polymers from different sectors of activity.

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Section: Methodsmentioning

confidence: 99%

Characterization of Arboblend V2 Nature Textured Surfaces Obtained by Injection Molding

et al. 2023

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Thermal and rheological properties and processability of thermoplastic lignocellulose

Tsegaye,

Westerberg,

Ström

et al. 2024

J of Applied Polymer Sci

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Fossil‐free biobased materials like thermoplastic lignocellulose are gaining attention because of climate issues. However, there is a challenge to make these as thermoplastic as commonly used thermoplastics. Arboform® is one of today's commercially available thermoplastic lignocellulose materials. In this work, the processability of this material was studied in detail and the effects of plasticizers on its processability, rheological, and mechanical properties were determined. Thermal/calorimetry analysis indicated that the processing temperature window was shifted to lower temperature with the use of tributyl citrate (TBC) and poly(ethylene glycol) (PEG 400) plasticizers, thus enabling extrusion at lower temperature. TBC and PEG 400 decreased both the glass transition temperature and melting point of the polylactide component. Surprisingly, they also affected the lignin component, as observed by the decreasing lignin decomposition temperature. It is observed that TBC and PEG400 lowered the stiffness of the compression molded material in the temperature range investigated (−30–180°C), and tensile tests in the presence of TBC revealed a decrease in ductility. Notable is that, in contrast to most thermoplastics, the Arboform® melt increases in viscosity and elastic moduli when the processing temperature was increased (from 180 to 200°C) or when processing time was increased.

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Thermoplastic-polymer matrix composite of banana/betel nut husk fiber reinforcement: Physico-mechanical properties evaluation

Mollah,

Miah,

Akram

et al. 2024

E-Polymers

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Reinforced composite made of polypropylene combining banana and betel nut husk fiber (BBF) was treated with 10% NaOH (w/w). The fiber percentages of 40%, 50%, and 60% were used using the compression molding process. Properties such as tensile, bending, impact, thermogravimetric analysis (TGA), and water absorption were assessed as composite reinforcements. The composites with 50% BBF reinforcement performed better than composites with different fiber compositions. While 40% BBF-reinforced showed superior results in tensile, bending, and water absorption tests, the impact and TGA analyses provided comparatively lower results. The tensile strength (36 MPa), bending strength (78 MPa), energy absorption (2.4 Nm), thermal resistance (300–583°), and the maximum level of characteristics were attained. This work demonstrated the feasibility of repurposing waste banana stems and betel nut husks for interior decoration, furniture, and automobile bodies in fiber-reinforced hybrid composites, replacing expensive and environmentally hazardous artificial materials due to their mechanical capabilities.

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Tribological and nanomechanical properties of a lignin-based biopolymer

Cited by 4 publications

References 39 publications

Characterization of Arboblend V2 Nature Textured Surfaces Obtained by Injection Molding

Characterization of Arboblend V2 Nature Textured Surfaces Obtained by Injection Molding

Thermal and rheological properties and processability of thermoplastic lignocellulose

Thermoplastic-polymer matrix composite of banana/betel nut husk fiber reinforcement: Physico-mechanical properties evaluation

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