胶合板低毒脲醛树脂预压性能的研究

王淑敏; 时君友

doi:10.19455/j.mcgy.2008.05.010

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专辑

胶合板低毒脲醛树脂预压性能的研究
Performance of Plywood Made with Low-toxicity Urea-formaldehyde Resin
1. 黑龙江林业职业技术学院
2. 北华大学
2008年第5期页码：32-34
DOI： 10.19455/j.mcgy.2008.05.010

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[1]王淑敏,时君友.胶合板低毒脲醛树脂预压性能的研究[J].木材工业,2008(05):32-34.

WANG Shu-min1, SHI Jun-you2. Performance of Plywood Made with Low-toxicity Urea-formaldehyde Resin[J]. China Wood Industry, 2008,(5):32-34.
[1]王淑敏,时君友.胶合板低毒脲醛树脂预压性能的研究[J].木材工业,2008(05):32-34. DOI： 10.19455/j.mcgy.2008.05.010.

WANG Shu-min1, SHI Jun-you2. Performance of Plywood Made with Low-toxicity Urea-formaldehyde Resin[J]. China Wood Industry, 2008,(5):32-34. DOI： 10.19455/j.mcgy.2008.05.010.

摘要

为改善低毒脲醛树脂的预压性能,讨论了改性剂（金属酸）对板坯预压性能的影响,分析了复合固化剂、单板含水率对预压强度的影响。通过正交试验和结果分析,找到了低毒UF树脂胶影响板坯预压性能的主要因素,适宜的UF树脂的F/U的物质的量比为1.03?1,且甲醛释放量<0.5 mg/L。

Abstract

To optimize the processing parameters for plywood panels made with low-toxicity urea-formaldehyde resin,a metal-acid was selected as a modifier agent to mix with the UF resin.An orthogonal experiment was designed to investigate the effect of the metal-acid,moisture content of veneer,and curing agent on the bonding strength.The most dominant factor that had influences on the bonding strength for low-toxicity UF resin was identified.It was observed that when the ratio of urea to formaldehyde was 1.03∶1,the formaldehyde emission of the plywood panel was lower than 0.5 mg/L.