Advancing Sustainable Building Materials: Reducing Formaldehyde Emissions in Medium Density Fiber Boards with Lignin Nanoparticles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F24%3A100440" target="_blank" >RIV/60460709:41320/24:100440 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/adsu.202400102" target="_blank" >http://dx.doi.org/10.1002/adsu.202400102</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/adsu.202400102" target="_blank" >10.1002/adsu.202400102</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Advancing Sustainable Building Materials: Reducing Formaldehyde Emissions in Medium Density Fiber Boards with Lignin Nanoparticles

Popis výsledku v původním jazyce

The pressing need to develop eco-friendly polymer materials for building applications has led to increased interest in modifying existing polymer systems. In this study, a sustainable approach to augmenting urea-formaldehyde (UF) resins, widely employed in wood-based panels is introduced. Addressing this, formaldehyde-scavenger demethylated lignin nanoparticles into UF resins, aiming to produce a green and enhanced medium-density-fiberboard (MDF) with minimal formaldehyde emissions is incorporated. The results indicate that increasing concentrations of demethylated lignin nanoparticles in the UF adhesive, there is not only a reduction in formaldehyde emissions from MDF composites but also a significant decrease in thickness swelling. The highest reduction in formaldehyde emission is observed in the MDF composite prepared with UF resin containing 7% lignin nanoparticles (UF-7NL), with an emission of 2.9 mg/100 g, marking a substantial decrease of 74% compared to emission of 11.2 mg/100 g from neat resin. Importantly, this reduction does not compromise physical and mechanical properties of the MDF; they remain comparable to boards bonded with unmodified UF. Molecular modeling revealed that lignin effectively traps formaldehyde, incorporating it as -CH2OH groups, leading to a notable decrease in formaldehyde emission from MDF. This approach offers an eco-friendly modification to a common polymer, showcasing lignin nanoparticles as innovative additives. Using demethylated lignin nanoparticles as formaldehyde scavengers in urea formaldehyde (UF) resins, this study produces a green medium-density-fiberboard (MDF) with minimal formaldehyde emissions. Increasing concentrations of these nanoparticles in the UF adhesive significantly reduces formaldehyde emissions and thickness swelling of MDF composites. Importantly, this reduction does not compromise the physical-mechanical properties, which remain comparable to boards bonded with unmodified UF. image

Název v anglickém jazyce

Advancing Sustainable Building Materials: Reducing Formaldehyde Emissions in Medium Density Fiber Boards with Lignin Nanoparticles

Popis výsledku anglicky

The pressing need to develop eco-friendly polymer materials for building applications has led to increased interest in modifying existing polymer systems. In this study, a sustainable approach to augmenting urea-formaldehyde (UF) resins, widely employed in wood-based panels is introduced. Addressing this, formaldehyde-scavenger demethylated lignin nanoparticles into UF resins, aiming to produce a green and enhanced medium-density-fiberboard (MDF) with minimal formaldehyde emissions is incorporated. The results indicate that increasing concentrations of demethylated lignin nanoparticles in the UF adhesive, there is not only a reduction in formaldehyde emissions from MDF composites but also a significant decrease in thickness swelling. The highest reduction in formaldehyde emission is observed in the MDF composite prepared with UF resin containing 7% lignin nanoparticles (UF-7NL), with an emission of 2.9 mg/100 g, marking a substantial decrease of 74% compared to emission of 11.2 mg/100 g from neat resin. Importantly, this reduction does not compromise physical and mechanical properties of the MDF; they remain comparable to boards bonded with unmodified UF. Molecular modeling revealed that lignin effectively traps formaldehyde, incorporating it as -CH2OH groups, leading to a notable decrease in formaldehyde emission from MDF. This approach offers an eco-friendly modification to a common polymer, showcasing lignin nanoparticles as innovative additives. Using demethylated lignin nanoparticles as formaldehyde scavengers in urea formaldehyde (UF) resins, this study produces a green medium-density-fiberboard (MDF) with minimal formaldehyde emissions. Increasing concentrations of these nanoparticles in the UF adhesive significantly reduces formaldehyde emissions and thickness swelling of MDF composites. Importantly, this reduction does not compromise the physical-mechanical properties, which remain comparable to boards bonded with unmodified UF. image

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ADVANCED SUSTAINABLE SYSTEMS

ISSN

2366-7486

e-ISSN

2366-7486

Svazek periodika

8

Číslo periodika v rámci svazku

9.0

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

14

Strana od-do

1-14

Kód UT WoS článku

001262236700001

EID výsledku v databázi Scopus

2-s2.0-85197921054