一种新型速生材单板改性技术——密闭环境下的高温饱和蒸汽软化和横向压缩处理

doi:10.11707/j.1001-7488.20140122

Abstract

Abstract:

This paper introduces a novel technology for modification of low-density fast-growing wood veneer, softening at high temperature with saturated steam and transverse compression in a sealed environment. It exploits the viscoelastic characteristics of wood and produces compressed wood products of high mechanical properties, high dimensional stability and high bonding performance. This process designed for thin wood lamina(<10 mm). Softening, densification and fixation of wood can be accomplished in a device that can maintain a sealed environment of high temperature with saturated steam. This process only takes around 20 min and the adopted temperature is 150 to 200℃, the production cycle is reduced and the thermal degradation of cellulose is avoided. Compressed lamina can be bonded with other veneer and produce a new wood-based composite product. It can be used for interior, furniture and construction. This article reviews the procedure, device and research status of this technology and analyzes the utilization of compressed wood. In addition, some suggestions about the research direction are proposed.

Key words: fast-growing wood veneer, VTC compressed wood, softening of wood, transverse compression, dimensional stability

CLC Number:

TS653

Liu Hongling, Guo Kangquan, Frederick A. Kamke, Tran Van Cuong. A Novel Modification Technology of Fast-Growing Wood Veneer： Softening at High Temperature with Saturated Steam and Transverse Compression in A Sealed Environment[J]. Scientia Silvae Sinicae, 2014, 50(1): 149-155.

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A Novel Modification Technology of Fast-Growing Wood Veneer： Softening at High Temperature with Saturated Steam and Transverse Compression in A Sealed Environment

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