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Open AccessArticle

Low-Density Cardoon (Cynara cardunculus L.) Particleboards Bound with Potato Starch-Based Adhesive

1
LEPABE-Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
2
LNEC (Laboratório Nacional de Engenharia Civil), Structures Department, Av. do Brasil, 101, 1700-066 Lisbon, Portugal
3
Centre for Ecology, Evolution and Environmental Changes, Azorean Biodiversity Group and University of the Azores, 9700-042 Angra do Heroísmo, Portugal
4
DEMAD–Department of Wood Engineering, Polytechnic Institute of Viseu, Campus Politécnico de Repeses, 3504-510 Viseu, Portugal
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(8), 1799; https://doi.org/10.3390/polym12081799
Received: 14 July 2020 / Revised: 6 August 2020 / Accepted: 7 August 2020 / Published: 11 August 2020
(This article belongs to the Special Issue Biodegradable and Sustainable Polymers)
In the present work, and for the first time, totally biosourced low-density particleboards were produced using cardoon particles (a no added value by-product from the Portuguese cheese making industry), bound with a potato starch adhesive. Different starch/cardoon ratios (0.6, 0.8, 1 and 1.2) were tested and the effect of different bio-based additives (chitosan, wood fiber and glycerol) on the performance of the adhesive system was evaluated. The best result was obtained for a formulation with a starch/cardoon mass ratio of 0.8, a chitosan/starch mass ratio of 0.05 and a water/starch mass ratio of 1.75. The particleboards produced had a density of 323 kg·m−3, internal bond strength of 0.35 N·mm−2 and thickness swelling of 15.2%. The values of density and internal bond strength meet the standard requirements of general-purpose lightweight boards for use in dry conditions according to CEN/TS 16368 specification. Moreover, the susceptibility of the formulations with best results was established against subterranean termites and one decay fungi. View Full-Text
Keywords: Low-density particleboards; starch-based adhesive; cardoon; physico-mechanical properties Low-density particleboards; starch-based adhesive; cardoon; physico-mechanical properties
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MDPI and ACS Style

Monteiro, S.; Nunes, L.; Martins, J.; D. Magalhães, F.; Carvalho, L. Low-Density Cardoon (Cynara cardunculus L.) Particleboards Bound with Potato Starch-Based Adhesive. Polymers 2020, 12, 1799. https://doi.org/10.3390/polym12081799

AMA Style

Monteiro S, Nunes L, Martins J, D. Magalhães F, Carvalho L. Low-Density Cardoon (Cynara cardunculus L.) Particleboards Bound with Potato Starch-Based Adhesive. Polymers. 2020; 12(8):1799. https://doi.org/10.3390/polym12081799

Chicago/Turabian Style

Monteiro, Sandra; Nunes, Lina; Martins, Jorge; D. Magalhães, Fernão; Carvalho, Luísa. 2020. "Low-Density Cardoon (Cynara cardunculus L.) Particleboards Bound with Potato Starch-Based Adhesive" Polymers 12, no. 8: 1799. https://doi.org/10.3390/polym12081799

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