Development of an innovative powder adhesive based on epoxy-polyester and lignin for production of particleboards

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F25%3A106192" target="_blank" >RIV/60460709:41320/25:106192 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43410/25:43927195

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2214509525007831?pes=vor&utm_source=clarivate&getft_integrator=clarivate" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2214509525007831?pes=vor&utm_source=clarivate&getft_integrator=clarivate</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cscm.2025.e04985" target="_blank" >10.1016/j.cscm.2025.e04985</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Development of an innovative powder adhesive based on epoxy-polyester and lignin for production of particleboards

Popis výsledku v původním jazyce

This study presents the development of innovative particleboards bonded with a hybrid powder adhesive composed of epoxy-polyester resin and kraft lignin, aiming to eliminate formaldehyde and volatile organic compounds (VOCs) from the manufacturing process. While powdered epoxy-polyester adhesives are well established in the metal and automotive sectors, their application in wood composites remains largely unexplored and only limited research has explored their potential for particleboard production. Particleboards were manufactured using varying proportions of kraft lignin (0-100 %) to partially or fully replace the epoxy-polyester base. The optimal performance was observed with 20 % lignin substitution, where mechanical properties such as modulus of rupture (MOR = 8.3 MPa), modulus of elasticity (MOE = 1455 MPa), and internal bond (IB = 0.21 MPa) were comparable to or exceeded those of the control variant without lignin. Despite lower mechanical performance at high lignin ratios (>= 80 %), 100 % lignin-based boards exhibited improved thermal stability and fire resistance, confirmed by TGA, DSC, and cone calorimetry. SEM analysis revealed that lignin contributed to good particle coverage and homogeneous bonding. These results demonstrate the feasibility of using kraft lignin in powder form as a binder or co-binder in wood-based composites. Such particleboards offer a promising alternative for applications in interior non-load-bearing construction and eco-friendly furniture manufacturing.

Název v anglickém jazyce

Development of an innovative powder adhesive based on epoxy-polyester and lignin for production of particleboards

Popis výsledku anglicky

This study presents the development of innovative particleboards bonded with a hybrid powder adhesive composed of epoxy-polyester resin and kraft lignin, aiming to eliminate formaldehyde and volatile organic compounds (VOCs) from the manufacturing process. While powdered epoxy-polyester adhesives are well established in the metal and automotive sectors, their application in wood composites remains largely unexplored and only limited research has explored their potential for particleboard production. Particleboards were manufactured using varying proportions of kraft lignin (0-100 %) to partially or fully replace the epoxy-polyester base. The optimal performance was observed with 20 % lignin substitution, where mechanical properties such as modulus of rupture (MOR = 8.3 MPa), modulus of elasticity (MOE = 1455 MPa), and internal bond (IB = 0.21 MPa) were comparable to or exceeded those of the control variant without lignin. Despite lower mechanical performance at high lignin ratios (>= 80 %), 100 % lignin-based boards exhibited improved thermal stability and fire resistance, confirmed by TGA, DSC, and cone calorimetry. SEM analysis revealed that lignin contributed to good particle coverage and homogeneous bonding. These results demonstrate the feasibility of using kraft lignin in powder form as a binder or co-binder in wood-based composites. Such particleboards offer a promising alternative for applications in interior non-load-bearing construction and eco-friendly furniture manufacturing.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20502 - Paper and wood

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Case Studies in Construction Materials

ISSN

2214-5095

e-ISSN

2214-5095

Svazek periodika

23

Číslo periodika v rámci svazku

2025

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

16

Strana od-do

1-16

Kód UT WoS článku

001525290200001

EID výsledku v databázi Scopus

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