Evaluating mold growth in tannin-resin and flax fiber biocomposites

Segovia, César; Sauget, A.; Besserer, Arnaud; Kueny, Raphaël; Pizzi, A.

doi:10.1016/j.indcrop.2015.12.088

Cited by 17 publications

(4 citation statements)

References 12 publications

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“…Wood plastic composites (WPCs) are an eco‐innovative material mainly consisting of post‐consumer recycled wood and plastic . They are also relatively low‐cost composite materials with superior or comparable performance to traditionally used materials . Moreover, it is an effective method to give full play to the advantages of wood and plastic .…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of eucalyptus wood flour/polypropylene composites by subcritical ethanol and 3‐Aminopropyltriethoxysilane as cosolvent

et al. 2017

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Subcritical fluids assisted reactive extrusion is a novel and promising alternative technique for preparation of wood plastic composites. Because subcritical fluids have moderate process condition, well swollen performance, and excellent dissolvability. Therefore, subcritical fluids are led into the extruder system to alleviate the thermal degradation of wood flour, to reduce the melt viscosity of matrix, and to strengthen the mass transport. The wood flour is expanded in the presence of subcritical ethanol, which favors the permeability. Fourier transform infrared spectroscopy confirms that maleic anhydride grafted polypropylene (PP‐g‐MA) is grafted onto cellulosic chain, and subcritical ethanol promotes the grafting and swollen reaction. A possible mechanism is proposed to explain the effect of subcritical ethanol on the interfacial reactions. In addition, the thermal stability of wood flour, PP, and wood flour/PP composites are studied. Fracture morphology is observed to confirm the interfacial adhesion of wood flour/PP composites. The results suggest that subcritical ethanol leads to a change of crystalline structure of cellulose via X‐ray diffraction. Moreover, the mechanical properties of wood flour/PP composites increase dramatically, while 3‐Aminopropyltriethoxysilane (KH550) is used as co‐solvent dissolving in ethanol. Experimental results reveal that wood flour/PP composites in the presence of subcritical ethanol with 2% KH550 (190°C, 2.4 MPa, and 120 r/min), whose tensile strength, flexural strength, flexural modulus, and non‐notched impact strength increase by 45, 56, 29, and 36%, respectively, possess the best physical properties comparing to those during extrusion without fluids. POLYM. COMPOS., 39:3594–3604, 2018. © 2017 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Preparation and characterization of eucalyptus wood flour/polypropylene composites by subcritical ethanol and 3‐Aminopropyltriethoxysilane as cosolvent

et al. 2017

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“…Similar properties (i.e., antioxidant and UV-shielding) were reported alongside the enhanced strength for these films. Advantageously, tannins can often preserve their innate antimicrobial properties and confer it to the resulting material [ 110 , 111 ], which is frequently aimed for when developing tannin-based materials. Similarly, the metal chelation capabilities of the catecholic/pyrogallolic moieties ( Figure 2 b) can be preserved even when the tannin is covalently crosslinked to the surface.…”

Section: Hybrid Materialsmentioning

confidence: 99%

Tannin-Based Hybrid Materials and Their Applications: A Review

et al. 2020

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Tannins are eco-friendly, bio-sourced, natural, and highly reactive polyphenols. In the past decades, the understanding of their versatile properties has grown substantially alongside a continuously broadening of the tannins’ application scope. In particular, recently, tannins have been increasingly investigated for their interaction with other species in order to obtain tannin-based hybrid systems that feature advanced and/or novel properties. Furthermore, in virtue of the tannins’ chemistry and their high reactivity, they either physicochemically or physically interact with a wide variety of different compounds, including metals and ceramics, as well as a number of organic species. Such hybrid or hybrid-like systems allow the preparation of various advanced nanomaterials, featuring improved performances compared to the current ones. Consequently, these diverse-shaped materials have potential use in wastewater treatment or catalysis, as well as in some novel fields such as UV-shielding, functional food packaging, and biomedicine. Since these kinds of tannin-based hybrids represent an emerging field, thus far no comprehensive overview concerning their potential as functional chemical building blocks is available. Hence, this review aims to provide a structured summary of the current state of research regarding tannin-based hybrids, detailed findings on the chemical mechanisms as well as their fields of application.

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“…Despite their good mechanical properties and ease of processing, these resins have for some time been classified as carcinogenic and hazardous to humans and their environment [ 3 , 4 ]. In view of the above, many researchers have been racing to develop new technologies using forest biomass, namely tannins and particles, in value-added products [ [5] , [6] , [7] , [8] , [9] ]. Tannins are found in bark (or wood) [ 2 , [10] , [11] , [12] ], fruits, leaves [ 13 ] and in some lianas.…”

Section: Introductionmentioning

confidence: 99%

“…It was found that panels containing Vachellia nilotica have better internal cohesion and better thermal bio-insulators than those using glyoxal. The work of [ 5 , 22 , [25] , [26] , [27] ] show good mechanical properties of high-density bio-composites developed from natural fibers and tannin resin. This work is a first opportunity to valorize local biomass in the densification of the supply of the production of high value-added products that can be beneficial to society from an economic and ecological point of view.…”

Section: Introductionmentioning

confidence: 99%

Characterization of a composite based on Cissus dinklagei tannin resin

Njom,

Voufo,

Segovia

et al. 2024

Heliyon

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Evaluating mold growth in tannin-resin and flax fiber biocomposites

Cited by 17 publications

References 12 publications

Preparation and characterization of eucalyptus wood flour/polypropylene composites by subcritical ethanol and 3‐Aminopropyltriethoxysilane as cosolvent

Preparation and characterization of eucalyptus wood flour/polypropylene composites by subcritical ethanol and 3‐Aminopropyltriethoxysilane as cosolvent

Tannin-Based Hybrid Materials and Their Applications: A Review

Characterization of a composite based on Cissus dinklagei tannin resin

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