A Study on Modification Technology of Poplarthrough Impregnating with UF Resin

Abstract:

Through impregnating with UF resin, the modification technology of Poplar was experimented and studied. The study results proved that the laminated veneer lumber (LVL), impregnated with UF resin, reached fine quality when the bumping vacuum time, the solid content of UF resin, the impregnation temperature and time were respectively 40min, 30%, 25-30°C and 3 hours. The picture of electron microscope showed that in LVL impregnated with UF resin, the wood vessels and cells near the veneer junction sections occurred mostly deformation, but the wood cells depart farther from the veneer junction sections occurred rarely deformation. The cell lumens and middle lamella near the veneer junction sections were almost filled by the resin，but the scarcely any resin filled in the wood cell lumens depart farther from the veneer junction sections.

• Periodical: Advanced Materials Research (Volume 621)
• Pages: 54-57
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.621.54
• Online since: December 2012
• Authors: Jian Han, Kai Neng Liu, Xi Tao Gao
• Keywords: Impregnation, Modification Technology, Poplar, UF Resin

References

[1] Zhongtao Zhang. Poplar resources development and utilization in Our country[J].forestry construction,2001, 5: 21-24.

[2] Zhang Qinli. The Utilization of Southern Type Poplar[J]. forest product industry, 2000, 27(5): 3-6

[3] Liu Shengquan.Current Situation and Development Trends of Research on Wood Properties, Processing & Utilization of Poplar Plantation in China[J].China wood industry,1999, 13(3): 14-16

[4] LIU Junliang,WANG Yuqiu. Dimensional Stability of Surface-Compressed Wood by PF Resin Treatment[J].CHINA WOOD INDUSTRY, 2004, 18(06):5-8.

[5] YE Kelin,WANG Jinlin. Processing and Utilization of Poplar Wood from Plantations[J]. China wood industry,2003, 17(1): 5-10

[6] Fang Guizhen,Li Jian.Cross-linkin effect between wood and melamine-formaldehyde[J]. SCIENTIA SILVAE SINICAE,1997,33(3):252-258.

[7] Chang Delong, Chen Yuhe. Study on strengthening the surface of paulownia wood with low molecular resin[J]. forest product industry,1997,24(6):7-10.

[8] Hui Wan, Moon G Kim. Impregnation of southern pine wood and strands with low molecular weight phenol-formaldehyde resins for stabilization of oriented strand board .Wood and Fiber Science,2006, 38(2):314-324.

[9] H.J. Zhang, Y.H. Chui, M.H. Schneider compression control and its significance in the manufactureand effects on properties of Poplar LVL. Wood Science and Technology . 1994,28,285-29

DOI: 10.1007/bf00204214