Room: Poster Area
Date: Wednesday, 20 May 2026
Time: 09:00 - 10:00 CEST
Session code 6BV.2
Biomass conversion into bio-based chemicals and high-value compounds (part 1)
Process Optimization of Lignin.Phenol.Formaldehyde Resins for High.Pressure Laminates: A Taguchi L9 Study on Temperature, Pressure, and Time
Short Introductive summary
This study investigates the performance of lignin phenol formaldehyde (LPF) resins in high pressure laminate (HPL) production using a Taguchi L9 design of experiments. Temperature (120–160?°C), pressure (60–100?bar), and pressing time (20–60?min) were systematically varied to evaluate their influence on laminate dimensional stability and surface quality. Thickness and mass swelling were measured after 2?h boiling water immersion according to EN?438 [1] procedures. Results show that temperature is the dominant factor affecting swelling, followed by time and pressure. The best-performing condition within the tested matrix was 160?°C, 60?bar, 60?min, yielding 26.5% thickness swelling and 27.8% mass swelling. A model predicted optimum at 160?°C, 100?bar, 60?min was validated experimentally, achieving 23.8% and 21.7% swelling, respectively. While these values remain above industrial HPL standards (10%), the study establishes a robust processing window for LPF based laminates and identifies resin formulation as the next critical step toward meeting performance requirements.
Presenter
Janis RIZIKOVS
Latvian State Institute of Wood Chemistry, Biorefinery Laboratory, LATVIA
Presenter's biography
Research area is related to extraction and chemical processing technologies to obtain high value-added products from biomass: betulin, suberinic acids, biocomposites. Pretreatment, hydrolysis, carbonization, pyrolysis and activated carbon.
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
G. Sosins, Latvian State Institute of Wood Chemistry, Riga, LATVIA
M. Lauberts, Latvian State Institute of Wood Chemistry, Riga, LATVIA
J. Rainio, Latvijas Finieris, Riga, LATVIA
K. Stankus, Latvijas Finieris, Riga, LATVIA
A. Camans, Latvijas Finieris, Riga, LATVIA
Session reference: 6BV.2.31