Optimizing Chemical Wood Modification with Oligomeric Lactic Acid by Screening of Processing Conditions

被引：16

作者：

Grosse, Charlotte ^{[1
,2
]}

Grigsby, Warren J. ^{[3
]}

Noel, Marion ^{[1
]}

Treu, Andreas ^{[4
]}

Thevenon, Marie-France ^{[5
,6
]}

Gerardin, Philippe ^{[2
]}

机构：

[1] Berne Univ Appl Sci, Dept Architecture Wood & Civil Engn, Solothurnstr 102,Postfach 6096, CH-2500 Biel, Switzerland

[2] Univ Lorraine, Fac Sci & Technol, LERMaB, EA 4370, Vandoeuvre Les Nancy, France

[3] Scion, Bioprod Dev, Rotorua, New Zealand

[4] NIBIO, Norwegian Inst Bioecon Res, As, Norway

[5] CIRAD, UR BIOWooEB, Montpellier, France

[6] Univ Montpellier, CIRAD, BIOWooEB, Montpellier, France

来源：

JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY | 2019年 / 39卷 / 06期

关键词：

Beech; chemical modification; lactic acid; curing; optimization; HEAT-TREATMENT INTENSITY; DECAY RESISTANCE; HARDWOOD; CELLULOSE; PERFORMANCE; SOFTWOOD; FTIR;

D O I：

10.1080/02773813.2019.1601739

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

When exposed to moisture, wood undergoes swelling and is susceptible to fungal degradation. Chemical modification via oligomeric lactic acid (OLA) treatment has been found to be a promising environmentally friendly solution to this disadvantage. In this study, wood was impregnated with OLA and then variously heat treated to polymerize the OLA in situ. The effect of curing temperature and time on OLA polymerization has been determined chemically. Dimensional stability was examined by water immersion and hygroscopicity measurements and biological decay resistance also evaluated. OLA impregnation followed by heat treatment enhanced wood properties. OLA cure at 160 degrees C for 48 h resulted in treated wood with greater dimensional stability and biological resistance.

引用

页码：385 / 398

页数：14

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