Synthesis of Glyoxal-urea（GU） Resin and Its Application in Rubberwood Modification

HU Ji-hang; LIU Jun-liang; FAN Shu-tong

doi:10.19455/j.mcgy.20200202

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Synthesis of Glyoxal-urea（GU） Resin and Its Application in Rubberwood Modification
1. Research Institute of Wood Industry,Chinese Academy of Forestry
2. College of Materials Science and Technology,BeiHua University
Vol. 34, Issue 2, Pages: 6-9(2020)
DOI： 10.19455/j.mcgy.20200202

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[1]胡极航,刘君良,范书桐.乙二醛-尿素树脂的合成及橡胶木改性应用[J].木材工业,2020,34(02):6-9.

HU Ji-hang, LIU Jun-liang, FAN Shu-tong. Synthesis of Glyoxal-urea（GU） Resin and Its Application in Rubberwood Modification. [J]. China Wood Industry 34(2):6-9(2020)
[1]胡极航,刘君良,范书桐.乙二醛-尿素树脂的合成及橡胶木改性应用[J].木材工业,2020,34(02):6-9. DOI： 10.19455/j.mcgy.20200202.

HU Ji-hang, LIU Jun-liang, FAN Shu-tong. Synthesis of Glyoxal-urea（GU） Resin and Its Application in Rubberwood Modification. [J]. China Wood Industry 34(2):6-9(2020) DOI： 10.19455/j.mcgy.20200202.

摘要

以不同量比合成乙二醛-尿素浸渍树脂（GU）,开发环保型树脂用于橡胶木改性。结果表明,当乙二醛、尿素的量比（G/L）为1.6时,树脂合成反应完全,其固体含量、黏度、水溶性、储存期等综合性能良好。将该树脂调配成质量分数30%的溶液,用于浸渍处理橡胶木,与未处理材相比,改性材的弹性模量和抗弯强度分别提高了21.5%和32.6%,尺寸稳定性（ASE）达到65.9%,改性效果良好。

Abstract

Glyoxal-urea resins（GU） were synthesized from glyoxal and urea at six ratios respectively, and then used for rubberwood modification. The results showed that at G∶U ratio of 1.6, the resin performed best in the solid content, the viscosity, the water solubility and the storage life. Rubberwood samples were impregnated with the GU resin at a concentration of 30%. Modulus of elasticity（MOE） and modulus of rupture（MOR） of the treated rubberwood samples were increased by 21% and 32.5%, respectively, comparing with untreated control samples. Dimensional stability（ASE） of the treated samples reached 65.9% as well.

关键词

乙二醛-尿素树脂（GU）配比橡胶木改性性能

Keywords

glyoxal-urea resin（GU）ratiorubberwoodmodificationproperty

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相关机构

Ministry of Education （MOE）Key Laboratory of Wooden Material Science and Application， Beijing Forestry University

Innovation Center of Efficient Processing and Utilization of Forest Resources，Nanjing Forestry University

School of Materials Science and Engineering， Beihua University

Institute of Chemical Industry of Forestry Products,Chinese Academy of Forestry (CAF),National Engineering Lab for Biomass Chemical Utilization

Research Institute of Forestry New Technology

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