Water-related properties of Pinus pinaster wood treated by different methods

• Autorzy: Domingos I. , Ferreira J. , Cruz-Lopes L. , Esteves B.

Identyfikatory

DOI

10.12841/wood.1644-3985.270.07

• Języki publikacji: EN

Abstrakty

EN

A study was made of water-related properties of Pinus pinaster wood impregnated with paraffin or modified by heat treatment or furfurylation. Treated woods were submerged in water for periods ranging from 2 to 1680 hours. Water absorption, swelling, and dimensional stability in the radial and tangential directions – expressed as Anti-Shrinking Efficiency (ASE) – were determined. Water absorption increased with time, reaching approximately 140% after 1680 h for untreated and heat-treated wood, and 60% for paraffinated and furfurylated wood. The rate of swelling differed between the first hours of soaking and after prolonged immersion. The final swelling was approximately 9% and 6% for untreated pine, 8% and 4% for paraffinated pine, 5.5% and 3% for heat-treated pine and 2.5% and 1% for furfurylated pine (in the tangential and radial directions respectively). At the end of the soaking test, furfurylated pine had the best ASE of approximately 80% and 70% in the tangential and radial directions respectively, followed by heat-treated pine with 44% and 34%, and paraffinated wood with 35% and 13%.

Słowa kluczowe

EN

ASE; furfurylation; heat treatment; modified wood; paraffin impregnation; swelling; water soaking

• Wydawca: Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
• Czasopismo: Drewno : prace naukowe, doniesienia, komunikaty
• Rocznik: 2018
• Tom: vol. 61, nr 202
• Strony: 69--80
• Opis fizyczny: Bibliogr. 24 poz., rys.

Twórcy

autor

Domingos I.

• Centre for Studies in Natural Resources Environment and Society (CERNAS), Department of Wood Engineering, Superior School of Technology, Polytechnic Institute of Viseu, Portugal

autor

Ferreira J.

• Centre for Studies in Natural Resources Environment and Society (CERNAS), Department of Wood Engineering, Superior School of Technology, Polytechnic Institute of Viseu, Portugal

autor

Cruz-Lopes L.

• Centre for Studies in Natural Resources Environment and Society (CERNAS), Department of Wood Engineering, Superior School of Technology, Polytechnic Institute of Viseu, Portugal

autor

Esteves B.

• Centre for Studies in Natural Resources Environment and Society (CERNAS), Department of Wood Engineering, Superior School of Technology, Polytechnic Institute of Viseu, Portugal

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