The combined effects of boron and oil heat treatment on the properties of beech and Scots pine wood. Part 2: Water absorption, compression strength, color changes, and decay resistance

Eylem Dizman Tomak (Corresponding Author), Hannu Viitanen, Umit C. Yildiz, Mark Hughes

Research output: Contribution to journalArticleScientificpeer-review

24 Citations (Scopus)

Abstract

The effect of oil treatments on several properties of wood treated with boron compounds was studied: water absorption, water repellent efficiency, compression strength parallel to grain, color changes, and decay resistance against Coniophora puteana and Coriolus versicolor. Oil heat treatment evidently decreased the water absorption to approximately 20% and increased water repellent efficiency to 80–90% after 2 weeks immersion in water. Compression strength was not adversely affected by oil heat treatment at 160 °C. Oil impregnation as a second treatment step caused remarkable color changes especially in specimens pretreated with 5% boric acid. Boric acid treatment protected the specimens against brown and white rot when no leaching prior the decay test was used, but the protective effect was low when boron was leached. Oil treated specimens gave better efficiency against fungal decay compared to controls; however, the effect was not within the range of the efficacy needed for a wood preservative. Double treatment gave synergistic effect for both in unleached and leached specimens.
Original languageEnglish
Pages (from-to)608-615
JournalJournal of Materials Science
Volume46
Issue number3
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed

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Boron
Water absorption
Wood
Oils
Compaction
Heat treatment
Color
Boric acid
Water
Boron Compounds
Boron compounds
Impregnation
Leaching

Cite this

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title = "The combined effects of boron and oil heat treatment on the properties of beech and Scots pine wood. Part 2: Water absorption, compression strength, color changes, and decay resistance",
abstract = "The effect of oil treatments on several properties of wood treated with boron compounds was studied: water absorption, water repellent efficiency, compression strength parallel to grain, color changes, and decay resistance against Coniophora puteana and Coriolus versicolor. Oil heat treatment evidently decreased the water absorption to approximately 20{\%} and increased water repellent efficiency to 80–90{\%} after 2 weeks immersion in water. Compression strength was not adversely affected by oil heat treatment at 160 °C. Oil impregnation as a second treatment step caused remarkable color changes especially in specimens pretreated with 5{\%} boric acid. Boric acid treatment protected the specimens against brown and white rot when no leaching prior the decay test was used, but the protective effect was low when boron was leached. Oil treated specimens gave better efficiency against fungal decay compared to controls; however, the effect was not within the range of the efficacy needed for a wood preservative. Double treatment gave synergistic effect for both in unleached and leached specimens.",
author = "Tomak, {Eylem Dizman} and Hannu Viitanen and Yildiz, {Umit C.} and Mark Hughes",
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The combined effects of boron and oil heat treatment on the properties of beech and Scots pine wood. Part 2 : Water absorption, compression strength, color changes, and decay resistance. / Tomak, Eylem Dizman (Corresponding Author); Viitanen, Hannu; Yildiz, Umit C.; Hughes, Mark.

In: Journal of Materials Science, Vol. 46, No. 3, 2010, p. 608-615.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - The combined effects of boron and oil heat treatment on the properties of beech and Scots pine wood. Part 2

T2 - Water absorption, compression strength, color changes, and decay resistance

AU - Tomak, Eylem Dizman

AU - Viitanen, Hannu

AU - Yildiz, Umit C.

AU - Hughes, Mark

PY - 2010

Y1 - 2010

N2 - The effect of oil treatments on several properties of wood treated with boron compounds was studied: water absorption, water repellent efficiency, compression strength parallel to grain, color changes, and decay resistance against Coniophora puteana and Coriolus versicolor. Oil heat treatment evidently decreased the water absorption to approximately 20% and increased water repellent efficiency to 80–90% after 2 weeks immersion in water. Compression strength was not adversely affected by oil heat treatment at 160 °C. Oil impregnation as a second treatment step caused remarkable color changes especially in specimens pretreated with 5% boric acid. Boric acid treatment protected the specimens against brown and white rot when no leaching prior the decay test was used, but the protective effect was low when boron was leached. Oil treated specimens gave better efficiency against fungal decay compared to controls; however, the effect was not within the range of the efficacy needed for a wood preservative. Double treatment gave synergistic effect for both in unleached and leached specimens.

AB - The effect of oil treatments on several properties of wood treated with boron compounds was studied: water absorption, water repellent efficiency, compression strength parallel to grain, color changes, and decay resistance against Coniophora puteana and Coriolus versicolor. Oil heat treatment evidently decreased the water absorption to approximately 20% and increased water repellent efficiency to 80–90% after 2 weeks immersion in water. Compression strength was not adversely affected by oil heat treatment at 160 °C. Oil impregnation as a second treatment step caused remarkable color changes especially in specimens pretreated with 5% boric acid. Boric acid treatment protected the specimens against brown and white rot when no leaching prior the decay test was used, but the protective effect was low when boron was leached. Oil treated specimens gave better efficiency against fungal decay compared to controls; however, the effect was not within the range of the efficacy needed for a wood preservative. Double treatment gave synergistic effect for both in unleached and leached specimens.

U2 - 10.1007/s10853-010-4860-2

DO - 10.1007/s10853-010-4860-2

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SP - 608

EP - 615

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JF - Journal of Materials Science

SN - 0022-2461

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