Enhancement of physico-mechanical properties of geopolymer particleboards through the use of seagrass fibers

Two types of geopolymer-bonded boards were produced using initial wetting of lignocellulosic aggregates followed by dry mixing and hot-pressing. Boards were prepared by incorporating large fractions of lignocellulosic material (up to 50 wt%). Geopolymer particleboards (GP) were produced using wood particles whereas geopolymer sandwich boards (GSB) were produced from wood particles and seagrass fibers, with the latter allocated in the outer layers. Inclusion of seagrass fibers was found to enhance bending strength and toughness of GSB by up to 20 and 40 % respectively. The bending strength tended to increase with the addition of lignocellulosic aggregates, reaching up to 8.9 N mm−2. Fire resistance of GSB was slightly higher compared to GP. Further investigations such as FT-IR, XRD analysis and visual examination by digital microscopy showed an adequate degree of geopolymerization and mixing of the precursor and alkaline activator, indicating the high effectiveness of the mixing technique.

LANTBRUKSVETENSKAPER Lantbruksvetenskap, skogsbruk och fiske Trävetenskap hsv//swe
AGRICULTURAL SCIENCES Agriculture, Forestry and Fisheries Wood Science hsv//eng
TEKNIK OCH TEKNOLOGIER Materialteknik Pappers-, massa- och fiberteknik hsv//swe
ENGINEERING AND TECHNOLOGY Materials Engineering Paper, Pulp and Fiber Technology hsv//eng
Aggregates
Bending strength
Fibers
Geopolymers
Hot pressing
Inorganic polymers
Plants (botany)
’Dry’ [
Geopolymer
Geopolymer particleboard
Lignocellulosic aggregates
Physicomechanical properties
Posidonia oceanica
Posidonium oceanicum fiber
Sandwich boards
Seagrasses
Wood particles
Mixing
Forestry and Wood Technology
Skog och träteknik

Mayer, Aaron KilianUniversity of Göttingen, Germany (author)
Amiandamhen, Stephen O.,1983-Linnéuniversitetet,Institutionen för skog och träteknik (SOT)(Swepub:lnu)stamaa (author)
Adamopoulos, StergiosSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Skogens biomaterial och teknologi,Department of Forest Biomaterials and Technology,Swedish University of Agricultural Sciences, Sweden(Swepub:lnu)stadab (author)
Mai, CarstenUniversity of Göttingen, Germany (author)
University of Göttingen, GermanyInstitutionen för skog och träteknik (SOT) (creator_code:org_t)
Sveriges lantbruksuniversitet

By the author/editor: Kuqo, Aldi; Mayer, Aaron Kil ...; Amiandamhen, Ste ...; Adamopoulos, Ste ...; Mai, Carsten

About the subject

AGRICULTURAL SCIENCES: AGRICULTURAL SCI ...; and Agriculture Fore ...; and Wood Science

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Materials Engine ...; and Paper Pulp and F ...

By the university: Linnaeus University; Swedish University of Agricultural Sciences

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