Non-toxic, zero emission tannin-glyoxal adhesives for wood panels

被引：145

作者：

Ballerini, A ^{[1
]}

Despres, A

Pizzi, A

机构：

[1] Univ Bio Bio, Dept Wood Engn, Concepcion, Chile

[2] Univ Nancy 1, ENSTIB, Epinal, France

来源：

HOLZ ALS ROH-UND WERKSTOFF | 2005年 / 63卷 / 06期

关键词：

D O I：

10.1007/s00107-005-0048-x

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：

In this study different tannin-glyoxal glue mixes for particleboard were studied. Gel times at 100 degrees C of 45% water solutions of commercial pine tannin extract (Pinus radiata ex Diteco Ltda, Chile) with respectively 8% paraformaldehyde and 9% glyoxal were done at different pHs. Duplicate one layer laboratory particleboards were prepared by adding 12% total resin solids of adhesives composed of commercial pine tannin extract (Pinus radiata ex Diteco Ltda, Chile) with paraformaldehyde, or glyoxal or polymeric 4,4' diphenylmethanne diisocianate (pMDI), respectively. It was found that tannin-glyoxal panels which do not contain formaldehyde and with an emission equal to that of unbounded wood can be obtained by the use of glyoxal as hardener.

引用

页码：477 / 478

页数：2

共 8 条

[1] Hexamine hardener behaviour: effects on wood glueing, tannin and other wood adhesives [J].