ADHESIVE BONDING OF ACETYLATED WOOD

被引：46

作者：

VICK, CB

ROWELL, RM

机构：

[1] USDA Forest Service, Forest Products Laboratory

来源：

INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES | 1990年 / 10卷 / 04期

关键词：

acetylated wood; adhesive bonding; caseinl; emulsion polymer-isocyanates; epoxy; melamine; moisture-curing hot-melt; neoprene contact; phenol; phenol-resorcinol; polyurethane; polyvinyl acetates; resorcinol; urea; waterborne contact;

D O I：

10.1016/0143-7496(90)90044-X

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Eighteen thermoplastic and thermosetting adhesives, including emulsion polymer-isocyanates, polyurethane, moisture-curing hot-melt, polyvinyl acetates, neoprene and waterborn contacts, casein, epoxy, melamine, ureas, resorcinol, phenol-resorcinols, and phenolics, were tested for their adhesion to yellow-poplar wood acetylated to 0, 8, 14 and 20 weight percent gains. Effectiveness of adhesion was determined by measuring shear strength and wood failure in a dry condition and after saturation with water. Adhesion was reduced to varying degrees in proportion to the compatibility of the adhesive with the amount of non-pollar, hydrophobic acetate groups in the acetylated wood. Seven of the adhesives developed bonds of high integrity at all levels of acetylation when tested in the dry condition. Two room-temperature-setting adhesives, one a resorcinol-formaldehyde and the other a phenol-resorcinol-formaldehyde, together with a hot-setting acid-catalysed phenol-formaldehyde, developed bonds of high strength and resulted in wood failure at all levels of acetylation when tested in the water-saturated condition. © 1990.

引用

页码：263 / 272

页数：10

共 11 条

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