Fire performance and leach resistance of pine wood impregnated with guanyl-urea phosphate/boric acid and a melamine-formaldehyde resin

Document identifier: oai:DiVA.org:ltu-78022
Access full text here:10.1007/s00107-019-01483-y
Keyword: Engineering and Technology, Mechanical Engineering, Other Mechanical Engineering, Teknik och teknologier, Maskinteknik, Annan maskinteknik, Träteknik, Wood Science and Engineering
Publication year: 2020
Relevant Sustainable Development Goals (SDGs):
SDG 15 Life on land
The SDG label(s) above have been assigned by OSDG.ai

Abstract:

Scots pine (Pinus sylvestris L.) wood impregnated with guanyl-urea phosphate/boric acid and a melamine-formaldehyde resin exhibited considerably increased resistance to leaching, while sustaining superior fire retardancy as tested by the limiting oxygen index (LOI) method. It was found that guanyl-urea phosphate has been well trapped in the wood structure by the cured resin network as evidenced by FTIR spectroscopy. Markedly, weight percentage gain (WPG) losses of fire retardant as low as 7.4% were achieved after excessive leaching of treated wood (EN 84). This was attributed to the effect of melamine-formaldehyde resin. Overall, this type of treatment could be a reliable method for producing fire-resistant pine wood for exterior uses.

Authors

Chia-Feng Lin

Luleå tekniska universitet; Träteknik
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Olov Karlsson

Luleå tekniska universitet; Träteknik
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George I. Mantanis

Department of Forestry, Wood Sciences and Design, Laboratory of Wood Science and Technology, University of Thessaly, Karditsa, Greece
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Dick Sandberg

Luleå tekniska universitet; Träteknik
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