Use of a fully biobased and non-reprotoxic epoxy polymer and woven hemp fabric to prepare environmentally friendly composite materials with excellent physical properties

Witthayolankowit, Kuntawit; Rakkijakan, Thanya; Ayub, Rabia; Kumaniaev, Ivan; Pourchet, Sylvie; Boni, Gilles; Watjanatepin, Ponnapat; Zarafshani, Hanie; Gabrion, Xavier; Chevallier, Anouk; Vo, Nhan; Vuure, Aart Willem Van; Balaguer, Patrick; Acker, Karel Van; Samec, Joseph S. M.; Placet, Vincent

doi:10.1016/j.compositesb.2023.110692

Cited by 16 publications

(3 citation statements)

References 41 publications

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“…While thorough toxicological studies of the prepared bisphenols are outside the scope of this work, the literature reports indicate a significantly reduced estrogenicity of IE-IE compared to BPA 27 . It is worth noting that the production of bio-based BPA analogs was a subject of previous studies 31 , 52 , 53 . Some approaches offer attractive transition metal-free pathways via e.g.…”

Section: Discussionmentioning

confidence: 99%

“…Some approaches offer attractive transition metal-free pathways via e.g. zeolite-catalyzed alkylation of guaiacol with IE 52 or ethyl guaiacol dimerization using formaldehyde 53 . However, since those methods rely on the reactivity of an aromatic ring, the selectivity of the processes is more difficult to control, which complicates a direct application of the processes to lignin oils.…”

Section: Discussionmentioning

confidence: 99%

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Room temperature catalytic upgrading of unpurified lignin depolymerization oil into bisphenols and butene-2

Subbotina,

Souza,

Zimmerman

et al. 2024

Nat Commun

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Lignin is the largest source of renewable aromatics on earth. Despite numerous techniques for lignin depolymerization into mixtures of valuable monomers, methods for their upgrading into final products are scarce. The state of the art upgrading methods generally rely on catalytic funneling, requiring high temperatures, catalyst loadings and hydrogen pressure, and lead to the loss of functionality and bio-based carbon content. Here an alternative approach is presented, whereby the target monomers are selectively converted in unpurified mixtures into easily separable final products under mild conditions. We use reductive catalytic fractionation of wood to convert lignin into iso-eugenol and propenyl syringol enriched oil followed by an olefin metathesis to yield bisphenols and butene-2, thus, valorizing all bio-based carbons. To further demonstrate the synthetic utility of the obtained bisphenols we converted them into polyesters with a high glass transition temperature (Tg = 140.3 °C) and thermal stability (Td50% = 330 °C).

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Room temperature catalytic upgrading of unpurified lignin depolymerization oil into bisphenols and butene-2

Subbotina,

Souza,

Zimmerman

et al. 2024

Nat Commun

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“…It is therefore necessary to investigate more deeply the substitution of fossil-based thermoset matrices with biobased ones. Therefore, research for new technological and eco-friendly solutions for the most common thermosets matrices such as epoxy, phenolic, and polyester resins is of pivotal interest for the composites industry [21,22].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Novel Flax Fiber/Epoxy Composites with Increased Biobased Content

Dal Pont,

Gigante,

Panariello

et al. 2023

Polymers

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Currently, biobased epoxy resins derived from plant oils and natural fibers are available on the market and are a promising substitute for fossil-based products. The purpose of this work is to investigate novel lightweight thermoset fiber-reinforced composites with extremely high biobased content. Paying attention to the biobased content, following a cascade pathway, many trials were carried out with different types of resins and hardeners to select the best ones. The most promising formulations were then used to produce flax fiber reinforced composites by vacuum bagging process. The main biocomposite properties such as tensile, bending, and impact properties as well as the individuation of their glass transition temperatures (by DSC) were assessed. Three biocomposite systems were investigated with biobased content ranging from 60 to 91%, obtaining an elastic modulus that varied from 2.7 to 6.3 GPa, a flexural strength from 23 to 108.5 MPa, and Charpy impact strength from 11.9 to 12.2 kJ/m2. The properties reached by the new biocomposites are very encouraging; in fact, their stiffness vs. lightweight (calculated by the E/ρ3 ratio) is comparable to some typical epoxy–glass composites.

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Sustainable Revolution: AI-Driven Enhancements for Composite Polymer Processing and Optimization in Intelligent Food Packaging

Yakoubi

2024

Food Bioprocess Technol

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Use of a fully biobased and non-reprotoxic epoxy polymer and woven hemp fabric to prepare environmentally friendly composite materials with excellent physical properties

Cited by 16 publications

References 41 publications

Room temperature catalytic upgrading of unpurified lignin depolymerization oil into bisphenols and butene-2

Room temperature catalytic upgrading of unpurified lignin depolymerization oil into bisphenols and butene-2

Investigation of Novel Flax Fiber/Epoxy Composites with Increased Biobased Content

Sustainable Revolution: AI-Driven Enhancements for Composite Polymer Processing and Optimization in Intelligent Food Packaging

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