THE STUDY ON GLUE-APPLYING METHODS AND HOT-PRESSING TECHNOLOGY OF PARALLEL STRAND LUMBER

Author:

ZHOU KANG,REN ZIRUI,SHUOSUN CHEN,NA BIN

Abstract

Parallel strand lumber (PSL) was manufactured from the veneer strand cut from the poplar broken veneers of the plywood enterprises, by analyzing the influence of the size of veneer strands, the glue concentration and glue-applying time on the glue-absorbing amount of veneer strands, the influence of three different glue-applying was, hot-pressing time and temperature on the physical and mechanical properties of PSL was reviewed and the hot-pressing technology was optimized. The experiment results showed that the size of the veneer strands have not notableinfluence on the gluing-absorbing amount, and mainly affect the homogeneity and appearance quality of the product. The glue concentration is one main factor to affect theglue-absorbing amount of veneer strands and PF resin of 30% concentration was chosen. The glue-applying way is the main factor to affect the mechanical property of PSL. Thehot-pressing time and temperature have significant influence on physical and mechanical properties of PSL. Comprehensively considering, the physical and mechanical properties and homogeneity of products are better using the veneer strands with 100 mm length, theglue-spraying way and hot-pressing technology with the time 35 min and thetemperature of 150°C.

Publisher

Pulp and Paper Research Institute

Subject

General Materials Science,Forestry

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Parallel strand lumber made from pine veneer;Annals of WULS, Forestry and Wood Technology;2024-03-31

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